forked from OSchip/llvm-project
6526 lines
223 KiB
C++
6526 lines
223 KiB
C++
//===-- LLParser.cpp - Parser Class ---------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the parser class for .ll files.
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//
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//===----------------------------------------------------------------------===//
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#include "LLParser.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/None.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/SmallPtrSet.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/AsmParser/SlotMapping.h"
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#include "llvm/IR/Argument.h"
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#include "llvm/IR/AutoUpgrade.h"
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#include "llvm/IR/BasicBlock.h"
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#include "llvm/IR/CallingConv.h"
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#include "llvm/IR/Comdat.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/DebugInfoMetadata.h"
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#include "llvm/IR/DerivedTypes.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/GlobalIFunc.h"
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#include "llvm/IR/GlobalObject.h"
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#include "llvm/IR/InlineAsm.h"
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#include "llvm/IR/Instruction.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/IR/Intrinsics.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Metadata.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/Operator.h"
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#include "llvm/IR/Type.h"
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#include "llvm/IR/Value.h"
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#include "llvm/IR/ValueSymbolTable.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/Dwarf.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/SaveAndRestore.h"
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#include "llvm/Support/raw_ostream.h"
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#include <algorithm>
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#include <cassert>
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#include <cstring>
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#include <iterator>
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#include <vector>
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using namespace llvm;
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static std::string getTypeString(Type *T) {
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std::string Result;
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raw_string_ostream Tmp(Result);
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Tmp << *T;
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return Tmp.str();
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}
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/// Run: module ::= toplevelentity*
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bool LLParser::Run() {
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// Prime the lexer.
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Lex.Lex();
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if (Context.shouldDiscardValueNames())
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return Error(
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Lex.getLoc(),
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"Can't read textual IR with a Context that discards named Values");
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return ParseTopLevelEntities() ||
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ValidateEndOfModule();
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}
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bool LLParser::parseStandaloneConstantValue(Constant *&C,
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const SlotMapping *Slots) {
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restoreParsingState(Slots);
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Lex.Lex();
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Type *Ty = nullptr;
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if (ParseType(Ty) || parseConstantValue(Ty, C))
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return true;
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if (Lex.getKind() != lltok::Eof)
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return Error(Lex.getLoc(), "expected end of string");
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return false;
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}
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bool LLParser::parseTypeAtBeginning(Type *&Ty, unsigned &Read,
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const SlotMapping *Slots) {
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restoreParsingState(Slots);
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Lex.Lex();
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Read = 0;
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SMLoc Start = Lex.getLoc();
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Ty = nullptr;
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if (ParseType(Ty))
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return true;
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SMLoc End = Lex.getLoc();
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Read = End.getPointer() - Start.getPointer();
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return false;
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}
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void LLParser::restoreParsingState(const SlotMapping *Slots) {
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if (!Slots)
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return;
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NumberedVals = Slots->GlobalValues;
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NumberedMetadata = Slots->MetadataNodes;
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for (const auto &I : Slots->NamedTypes)
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NamedTypes.insert(
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std::make_pair(I.getKey(), std::make_pair(I.second, LocTy())));
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for (const auto &I : Slots->Types)
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NumberedTypes.insert(
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std::make_pair(I.first, std::make_pair(I.second, LocTy())));
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}
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/// ValidateEndOfModule - Do final validity and sanity checks at the end of the
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/// module.
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bool LLParser::ValidateEndOfModule() {
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// Handle any function attribute group forward references.
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for (std::map<Value*, std::vector<unsigned> >::iterator
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I = ForwardRefAttrGroups.begin(), E = ForwardRefAttrGroups.end();
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I != E; ++I) {
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Value *V = I->first;
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std::vector<unsigned> &Vec = I->second;
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AttrBuilder B;
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for (std::vector<unsigned>::iterator VI = Vec.begin(), VE = Vec.end();
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VI != VE; ++VI)
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B.merge(NumberedAttrBuilders[*VI]);
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if (Function *Fn = dyn_cast<Function>(V)) {
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AttributeSet AS = Fn->getAttributes();
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AttrBuilder FnAttrs(AS.getFnAttributes(), AttributeSet::FunctionIndex);
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AS = AS.removeAttributes(Context, AttributeSet::FunctionIndex,
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AS.getFnAttributes());
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FnAttrs.merge(B);
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// If the alignment was parsed as an attribute, move to the alignment
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// field.
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if (FnAttrs.hasAlignmentAttr()) {
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Fn->setAlignment(FnAttrs.getAlignment());
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FnAttrs.removeAttribute(Attribute::Alignment);
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}
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AS = AS.addAttributes(Context, AttributeSet::FunctionIndex,
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AttributeSet::get(Context,
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AttributeSet::FunctionIndex,
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FnAttrs));
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Fn->setAttributes(AS);
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} else if (CallInst *CI = dyn_cast<CallInst>(V)) {
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AttributeSet AS = CI->getAttributes();
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AttrBuilder FnAttrs(AS.getFnAttributes(), AttributeSet::FunctionIndex);
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AS = AS.removeAttributes(Context, AttributeSet::FunctionIndex,
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AS.getFnAttributes());
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FnAttrs.merge(B);
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AS = AS.addAttributes(Context, AttributeSet::FunctionIndex,
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AttributeSet::get(Context,
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AttributeSet::FunctionIndex,
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FnAttrs));
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CI->setAttributes(AS);
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} else if (InvokeInst *II = dyn_cast<InvokeInst>(V)) {
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AttributeSet AS = II->getAttributes();
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AttrBuilder FnAttrs(AS.getFnAttributes(), AttributeSet::FunctionIndex);
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AS = AS.removeAttributes(Context, AttributeSet::FunctionIndex,
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AS.getFnAttributes());
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FnAttrs.merge(B);
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AS = AS.addAttributes(Context, AttributeSet::FunctionIndex,
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AttributeSet::get(Context,
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AttributeSet::FunctionIndex,
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FnAttrs));
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II->setAttributes(AS);
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} else {
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llvm_unreachable("invalid object with forward attribute group reference");
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}
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}
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// If there are entries in ForwardRefBlockAddresses at this point, the
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// function was never defined.
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if (!ForwardRefBlockAddresses.empty())
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return Error(ForwardRefBlockAddresses.begin()->first.Loc,
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"expected function name in blockaddress");
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for (const auto &NT : NumberedTypes)
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if (NT.second.second.isValid())
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return Error(NT.second.second,
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"use of undefined type '%" + Twine(NT.first) + "'");
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for (StringMap<std::pair<Type*, LocTy> >::iterator I =
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NamedTypes.begin(), E = NamedTypes.end(); I != E; ++I)
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if (I->second.second.isValid())
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return Error(I->second.second,
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"use of undefined type named '" + I->getKey() + "'");
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if (!ForwardRefComdats.empty())
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return Error(ForwardRefComdats.begin()->second,
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"use of undefined comdat '$" +
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ForwardRefComdats.begin()->first + "'");
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if (!ForwardRefVals.empty())
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return Error(ForwardRefVals.begin()->second.second,
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"use of undefined value '@" + ForwardRefVals.begin()->first +
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"'");
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if (!ForwardRefValIDs.empty())
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return Error(ForwardRefValIDs.begin()->second.second,
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"use of undefined value '@" +
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Twine(ForwardRefValIDs.begin()->first) + "'");
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if (!ForwardRefMDNodes.empty())
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return Error(ForwardRefMDNodes.begin()->second.second,
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"use of undefined metadata '!" +
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Twine(ForwardRefMDNodes.begin()->first) + "'");
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// Resolve metadata cycles.
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for (auto &N : NumberedMetadata) {
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if (N.second && !N.second->isResolved())
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N.second->resolveCycles();
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}
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for (auto *Inst : InstsWithTBAATag) {
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MDNode *MD = Inst->getMetadata(LLVMContext::MD_tbaa);
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assert(MD && "UpgradeInstWithTBAATag should have a TBAA tag");
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auto *UpgradedMD = UpgradeTBAANode(*MD);
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if (MD != UpgradedMD)
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Inst->setMetadata(LLVMContext::MD_tbaa, UpgradedMD);
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}
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// Look for intrinsic functions and CallInst that need to be upgraded
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for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; )
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UpgradeCallsToIntrinsic(&*FI++); // must be post-increment, as we remove
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// Some types could be renamed during loading if several modules are
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// loaded in the same LLVMContext (LTO scenario). In this case we should
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// remangle intrinsics names as well.
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for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; ) {
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Function *F = &*FI++;
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if (auto Remangled = Intrinsic::remangleIntrinsicFunction(F)) {
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F->replaceAllUsesWith(Remangled.getValue());
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F->eraseFromParent();
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}
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}
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UpgradeDebugInfo(*M);
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UpgradeModuleFlags(*M);
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if (!Slots)
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return false;
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// Initialize the slot mapping.
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// Because by this point we've parsed and validated everything, we can "steal"
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// the mapping from LLParser as it doesn't need it anymore.
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Slots->GlobalValues = std::move(NumberedVals);
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Slots->MetadataNodes = std::move(NumberedMetadata);
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for (const auto &I : NamedTypes)
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Slots->NamedTypes.insert(std::make_pair(I.getKey(), I.second.first));
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for (const auto &I : NumberedTypes)
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Slots->Types.insert(std::make_pair(I.first, I.second.first));
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return false;
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}
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//===----------------------------------------------------------------------===//
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// Top-Level Entities
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//===----------------------------------------------------------------------===//
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bool LLParser::ParseTopLevelEntities() {
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while (true) {
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switch (Lex.getKind()) {
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default: return TokError("expected top-level entity");
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case lltok::Eof: return false;
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case lltok::kw_declare: if (ParseDeclare()) return true; break;
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case lltok::kw_define: if (ParseDefine()) return true; break;
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case lltok::kw_module: if (ParseModuleAsm()) return true; break;
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case lltok::kw_target: if (ParseTargetDefinition()) return true; break;
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case lltok::kw_source_filename:
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if (ParseSourceFileName())
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return true;
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break;
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case lltok::kw_deplibs: if (ParseDepLibs()) return true; break;
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case lltok::LocalVarID: if (ParseUnnamedType()) return true; break;
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case lltok::LocalVar: if (ParseNamedType()) return true; break;
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case lltok::GlobalID: if (ParseUnnamedGlobal()) return true; break;
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case lltok::GlobalVar: if (ParseNamedGlobal()) return true; break;
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case lltok::ComdatVar: if (parseComdat()) return true; break;
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case lltok::exclaim: if (ParseStandaloneMetadata()) return true; break;
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case lltok::MetadataVar:if (ParseNamedMetadata()) return true; break;
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case lltok::kw_attributes: if (ParseUnnamedAttrGrp()) return true; break;
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case lltok::kw_uselistorder: if (ParseUseListOrder()) return true; break;
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case lltok::kw_uselistorder_bb:
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if (ParseUseListOrderBB())
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return true;
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break;
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}
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}
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}
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/// toplevelentity
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/// ::= 'module' 'asm' STRINGCONSTANT
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bool LLParser::ParseModuleAsm() {
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assert(Lex.getKind() == lltok::kw_module);
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Lex.Lex();
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std::string AsmStr;
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if (ParseToken(lltok::kw_asm, "expected 'module asm'") ||
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ParseStringConstant(AsmStr)) return true;
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M->appendModuleInlineAsm(AsmStr);
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return false;
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}
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/// toplevelentity
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/// ::= 'target' 'triple' '=' STRINGCONSTANT
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/// ::= 'target' 'datalayout' '=' STRINGCONSTANT
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bool LLParser::ParseTargetDefinition() {
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assert(Lex.getKind() == lltok::kw_target);
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std::string Str;
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switch (Lex.Lex()) {
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default: return TokError("unknown target property");
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case lltok::kw_triple:
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Lex.Lex();
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if (ParseToken(lltok::equal, "expected '=' after target triple") ||
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ParseStringConstant(Str))
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return true;
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M->setTargetTriple(Str);
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return false;
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case lltok::kw_datalayout:
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Lex.Lex();
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if (ParseToken(lltok::equal, "expected '=' after target datalayout") ||
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ParseStringConstant(Str))
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return true;
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M->setDataLayout(Str);
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return false;
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}
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}
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/// toplevelentity
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/// ::= 'source_filename' '=' STRINGCONSTANT
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bool LLParser::ParseSourceFileName() {
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assert(Lex.getKind() == lltok::kw_source_filename);
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std::string Str;
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Lex.Lex();
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if (ParseToken(lltok::equal, "expected '=' after source_filename") ||
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ParseStringConstant(Str))
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return true;
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M->setSourceFileName(Str);
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return false;
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}
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/// toplevelentity
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/// ::= 'deplibs' '=' '[' ']'
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/// ::= 'deplibs' '=' '[' STRINGCONSTANT (',' STRINGCONSTANT)* ']'
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/// FIXME: Remove in 4.0. Currently parse, but ignore.
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bool LLParser::ParseDepLibs() {
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assert(Lex.getKind() == lltok::kw_deplibs);
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Lex.Lex();
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if (ParseToken(lltok::equal, "expected '=' after deplibs") ||
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ParseToken(lltok::lsquare, "expected '=' after deplibs"))
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return true;
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if (EatIfPresent(lltok::rsquare))
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return false;
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do {
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std::string Str;
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if (ParseStringConstant(Str)) return true;
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} while (EatIfPresent(lltok::comma));
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return ParseToken(lltok::rsquare, "expected ']' at end of list");
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}
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/// ParseUnnamedType:
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/// ::= LocalVarID '=' 'type' type
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bool LLParser::ParseUnnamedType() {
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LocTy TypeLoc = Lex.getLoc();
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unsigned TypeID = Lex.getUIntVal();
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Lex.Lex(); // eat LocalVarID;
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if (ParseToken(lltok::equal, "expected '=' after name") ||
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ParseToken(lltok::kw_type, "expected 'type' after '='"))
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return true;
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Type *Result = nullptr;
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if (ParseStructDefinition(TypeLoc, "",
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NumberedTypes[TypeID], Result)) return true;
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if (!isa<StructType>(Result)) {
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std::pair<Type*, LocTy> &Entry = NumberedTypes[TypeID];
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if (Entry.first)
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return Error(TypeLoc, "non-struct types may not be recursive");
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Entry.first = Result;
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Entry.second = SMLoc();
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}
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return false;
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}
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/// toplevelentity
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/// ::= LocalVar '=' 'type' type
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bool LLParser::ParseNamedType() {
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std::string Name = Lex.getStrVal();
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LocTy NameLoc = Lex.getLoc();
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Lex.Lex(); // eat LocalVar.
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if (ParseToken(lltok::equal, "expected '=' after name") ||
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ParseToken(lltok::kw_type, "expected 'type' after name"))
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return true;
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Type *Result = nullptr;
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if (ParseStructDefinition(NameLoc, Name,
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NamedTypes[Name], Result)) return true;
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if (!isa<StructType>(Result)) {
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std::pair<Type*, LocTy> &Entry = NamedTypes[Name];
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if (Entry.first)
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return Error(NameLoc, "non-struct types may not be recursive");
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Entry.first = Result;
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Entry.second = SMLoc();
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}
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return false;
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}
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/// toplevelentity
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/// ::= 'declare' FunctionHeader
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bool LLParser::ParseDeclare() {
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assert(Lex.getKind() == lltok::kw_declare);
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Lex.Lex();
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std::vector<std::pair<unsigned, MDNode *>> MDs;
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while (Lex.getKind() == lltok::MetadataVar) {
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unsigned MDK;
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MDNode *N;
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if (ParseMetadataAttachment(MDK, N))
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return true;
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MDs.push_back({MDK, N});
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}
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Function *F;
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if (ParseFunctionHeader(F, false))
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return true;
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for (auto &MD : MDs)
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F->addMetadata(MD.first, *MD.second);
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return false;
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}
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/// toplevelentity
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/// ::= 'define' FunctionHeader (!dbg !56)* '{' ...
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bool LLParser::ParseDefine() {
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assert(Lex.getKind() == lltok::kw_define);
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Lex.Lex();
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Function *F;
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return ParseFunctionHeader(F, true) ||
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ParseOptionalFunctionMetadata(*F) ||
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ParseFunctionBody(*F);
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}
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/// ParseGlobalType
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/// ::= 'constant'
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/// ::= 'global'
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bool LLParser::ParseGlobalType(bool &IsConstant) {
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if (Lex.getKind() == lltok::kw_constant)
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IsConstant = true;
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else if (Lex.getKind() == lltok::kw_global)
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IsConstant = false;
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else {
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IsConstant = false;
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return TokError("expected 'global' or 'constant'");
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}
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Lex.Lex();
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return false;
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}
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bool LLParser::ParseOptionalUnnamedAddr(
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GlobalVariable::UnnamedAddr &UnnamedAddr) {
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if (EatIfPresent(lltok::kw_unnamed_addr))
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UnnamedAddr = GlobalValue::UnnamedAddr::Global;
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else if (EatIfPresent(lltok::kw_local_unnamed_addr))
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UnnamedAddr = GlobalValue::UnnamedAddr::Local;
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else
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UnnamedAddr = GlobalValue::UnnamedAddr::None;
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return false;
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}
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/// ParseUnnamedGlobal:
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/// OptionalVisibility (ALIAS | IFUNC) ...
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/// OptionalLinkage OptionalVisibility OptionalDLLStorageClass
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/// ... -> global variable
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/// GlobalID '=' OptionalVisibility (ALIAS | IFUNC) ...
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/// GlobalID '=' OptionalLinkage OptionalVisibility OptionalDLLStorageClass
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/// ... -> global variable
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bool LLParser::ParseUnnamedGlobal() {
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unsigned VarID = NumberedVals.size();
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std::string Name;
|
|
LocTy NameLoc = Lex.getLoc();
|
|
|
|
// Handle the GlobalID form.
|
|
if (Lex.getKind() == lltok::GlobalID) {
|
|
if (Lex.getUIntVal() != VarID)
|
|
return Error(Lex.getLoc(), "variable expected to be numbered '%" +
|
|
Twine(VarID) + "'");
|
|
Lex.Lex(); // eat GlobalID;
|
|
|
|
if (ParseToken(lltok::equal, "expected '=' after name"))
|
|
return true;
|
|
}
|
|
|
|
bool HasLinkage;
|
|
unsigned Linkage, Visibility, DLLStorageClass;
|
|
GlobalVariable::ThreadLocalMode TLM;
|
|
GlobalVariable::UnnamedAddr UnnamedAddr;
|
|
if (ParseOptionalLinkage(Linkage, HasLinkage, Visibility, DLLStorageClass) ||
|
|
ParseOptionalThreadLocal(TLM) || ParseOptionalUnnamedAddr(UnnamedAddr))
|
|
return true;
|
|
|
|
if (Lex.getKind() != lltok::kw_alias && Lex.getKind() != lltok::kw_ifunc)
|
|
return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility,
|
|
DLLStorageClass, TLM, UnnamedAddr);
|
|
|
|
return parseIndirectSymbol(Name, NameLoc, Linkage, Visibility,
|
|
DLLStorageClass, TLM, UnnamedAddr);
|
|
}
|
|
|
|
/// ParseNamedGlobal:
|
|
/// GlobalVar '=' OptionalVisibility (ALIAS | IFUNC) ...
|
|
/// GlobalVar '=' OptionalLinkage OptionalVisibility OptionalDLLStorageClass
|
|
/// ... -> global variable
|
|
bool LLParser::ParseNamedGlobal() {
|
|
assert(Lex.getKind() == lltok::GlobalVar);
|
|
LocTy NameLoc = Lex.getLoc();
|
|
std::string Name = Lex.getStrVal();
|
|
Lex.Lex();
|
|
|
|
bool HasLinkage;
|
|
unsigned Linkage, Visibility, DLLStorageClass;
|
|
GlobalVariable::ThreadLocalMode TLM;
|
|
GlobalVariable::UnnamedAddr UnnamedAddr;
|
|
if (ParseToken(lltok::equal, "expected '=' in global variable") ||
|
|
ParseOptionalLinkage(Linkage, HasLinkage, Visibility, DLLStorageClass) ||
|
|
ParseOptionalThreadLocal(TLM) || ParseOptionalUnnamedAddr(UnnamedAddr))
|
|
return true;
|
|
|
|
if (Lex.getKind() != lltok::kw_alias && Lex.getKind() != lltok::kw_ifunc)
|
|
return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility,
|
|
DLLStorageClass, TLM, UnnamedAddr);
|
|
|
|
return parseIndirectSymbol(Name, NameLoc, Linkage, Visibility,
|
|
DLLStorageClass, TLM, UnnamedAddr);
|
|
}
|
|
|
|
bool LLParser::parseComdat() {
|
|
assert(Lex.getKind() == lltok::ComdatVar);
|
|
std::string Name = Lex.getStrVal();
|
|
LocTy NameLoc = Lex.getLoc();
|
|
Lex.Lex();
|
|
|
|
if (ParseToken(lltok::equal, "expected '=' here"))
|
|
return true;
|
|
|
|
if (ParseToken(lltok::kw_comdat, "expected comdat keyword"))
|
|
return TokError("expected comdat type");
|
|
|
|
Comdat::SelectionKind SK;
|
|
switch (Lex.getKind()) {
|
|
default:
|
|
return TokError("unknown selection kind");
|
|
case lltok::kw_any:
|
|
SK = Comdat::Any;
|
|
break;
|
|
case lltok::kw_exactmatch:
|
|
SK = Comdat::ExactMatch;
|
|
break;
|
|
case lltok::kw_largest:
|
|
SK = Comdat::Largest;
|
|
break;
|
|
case lltok::kw_noduplicates:
|
|
SK = Comdat::NoDuplicates;
|
|
break;
|
|
case lltok::kw_samesize:
|
|
SK = Comdat::SameSize;
|
|
break;
|
|
}
|
|
Lex.Lex();
|
|
|
|
// See if the comdat was forward referenced, if so, use the comdat.
|
|
Module::ComdatSymTabType &ComdatSymTab = M->getComdatSymbolTable();
|
|
Module::ComdatSymTabType::iterator I = ComdatSymTab.find(Name);
|
|
if (I != ComdatSymTab.end() && !ForwardRefComdats.erase(Name))
|
|
return Error(NameLoc, "redefinition of comdat '$" + Name + "'");
|
|
|
|
Comdat *C;
|
|
if (I != ComdatSymTab.end())
|
|
C = &I->second;
|
|
else
|
|
C = M->getOrInsertComdat(Name);
|
|
C->setSelectionKind(SK);
|
|
|
|
return false;
|
|
}
|
|
|
|
// MDString:
|
|
// ::= '!' STRINGCONSTANT
|
|
bool LLParser::ParseMDString(MDString *&Result) {
|
|
std::string Str;
|
|
if (ParseStringConstant(Str)) return true;
|
|
Result = MDString::get(Context, Str);
|
|
return false;
|
|
}
|
|
|
|
// MDNode:
|
|
// ::= '!' MDNodeNumber
|
|
bool LLParser::ParseMDNodeID(MDNode *&Result) {
|
|
// !{ ..., !42, ... }
|
|
LocTy IDLoc = Lex.getLoc();
|
|
unsigned MID = 0;
|
|
if (ParseUInt32(MID))
|
|
return true;
|
|
|
|
// If not a forward reference, just return it now.
|
|
if (NumberedMetadata.count(MID)) {
|
|
Result = NumberedMetadata[MID];
|
|
return false;
|
|
}
|
|
|
|
// Otherwise, create MDNode forward reference.
|
|
auto &FwdRef = ForwardRefMDNodes[MID];
|
|
FwdRef = std::make_pair(MDTuple::getTemporary(Context, None), IDLoc);
|
|
|
|
Result = FwdRef.first.get();
|
|
NumberedMetadata[MID].reset(Result);
|
|
return false;
|
|
}
|
|
|
|
/// ParseNamedMetadata:
|
|
/// !foo = !{ !1, !2 }
|
|
bool LLParser::ParseNamedMetadata() {
|
|
assert(Lex.getKind() == lltok::MetadataVar);
|
|
std::string Name = Lex.getStrVal();
|
|
Lex.Lex();
|
|
|
|
if (ParseToken(lltok::equal, "expected '=' here") ||
|
|
ParseToken(lltok::exclaim, "Expected '!' here") ||
|
|
ParseToken(lltok::lbrace, "Expected '{' here"))
|
|
return true;
|
|
|
|
NamedMDNode *NMD = M->getOrInsertNamedMetadata(Name);
|
|
if (Lex.getKind() != lltok::rbrace)
|
|
do {
|
|
if (ParseToken(lltok::exclaim, "Expected '!' here"))
|
|
return true;
|
|
|
|
MDNode *N = nullptr;
|
|
if (ParseMDNodeID(N)) return true;
|
|
NMD->addOperand(N);
|
|
} while (EatIfPresent(lltok::comma));
|
|
|
|
return ParseToken(lltok::rbrace, "expected end of metadata node");
|
|
}
|
|
|
|
/// ParseStandaloneMetadata:
|
|
/// !42 = !{...}
|
|
bool LLParser::ParseStandaloneMetadata() {
|
|
assert(Lex.getKind() == lltok::exclaim);
|
|
Lex.Lex();
|
|
unsigned MetadataID = 0;
|
|
|
|
MDNode *Init;
|
|
if (ParseUInt32(MetadataID) ||
|
|
ParseToken(lltok::equal, "expected '=' here"))
|
|
return true;
|
|
|
|
// Detect common error, from old metadata syntax.
|
|
if (Lex.getKind() == lltok::Type)
|
|
return TokError("unexpected type in metadata definition");
|
|
|
|
bool IsDistinct = EatIfPresent(lltok::kw_distinct);
|
|
if (Lex.getKind() == lltok::MetadataVar) {
|
|
if (ParseSpecializedMDNode(Init, IsDistinct))
|
|
return true;
|
|
} else if (ParseToken(lltok::exclaim, "Expected '!' here") ||
|
|
ParseMDTuple(Init, IsDistinct))
|
|
return true;
|
|
|
|
// See if this was forward referenced, if so, handle it.
|
|
auto FI = ForwardRefMDNodes.find(MetadataID);
|
|
if (FI != ForwardRefMDNodes.end()) {
|
|
FI->second.first->replaceAllUsesWith(Init);
|
|
ForwardRefMDNodes.erase(FI);
|
|
|
|
assert(NumberedMetadata[MetadataID] == Init && "Tracking VH didn't work");
|
|
} else {
|
|
if (NumberedMetadata.count(MetadataID))
|
|
return TokError("Metadata id is already used");
|
|
NumberedMetadata[MetadataID].reset(Init);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool isValidVisibilityForLinkage(unsigned V, unsigned L) {
|
|
return !GlobalValue::isLocalLinkage((GlobalValue::LinkageTypes)L) ||
|
|
(GlobalValue::VisibilityTypes)V == GlobalValue::DefaultVisibility;
|
|
}
|
|
|
|
/// parseIndirectSymbol:
|
|
/// ::= GlobalVar '=' OptionalLinkage OptionalVisibility
|
|
/// OptionalDLLStorageClass OptionalThreadLocal
|
|
/// OptionalUnnamedAddr 'alias|ifunc' IndirectSymbol
|
|
///
|
|
/// IndirectSymbol
|
|
/// ::= TypeAndValue
|
|
///
|
|
/// Everything through OptionalUnnamedAddr has already been parsed.
|
|
///
|
|
bool LLParser::parseIndirectSymbol(
|
|
const std::string &Name, LocTy NameLoc, unsigned L, unsigned Visibility,
|
|
unsigned DLLStorageClass, GlobalVariable::ThreadLocalMode TLM,
|
|
GlobalVariable::UnnamedAddr UnnamedAddr) {
|
|
bool IsAlias;
|
|
if (Lex.getKind() == lltok::kw_alias)
|
|
IsAlias = true;
|
|
else if (Lex.getKind() == lltok::kw_ifunc)
|
|
IsAlias = false;
|
|
else
|
|
llvm_unreachable("Not an alias or ifunc!");
|
|
Lex.Lex();
|
|
|
|
GlobalValue::LinkageTypes Linkage = (GlobalValue::LinkageTypes) L;
|
|
|
|
if(IsAlias && !GlobalAlias::isValidLinkage(Linkage))
|
|
return Error(NameLoc, "invalid linkage type for alias");
|
|
|
|
if (!isValidVisibilityForLinkage(Visibility, L))
|
|
return Error(NameLoc,
|
|
"symbol with local linkage must have default visibility");
|
|
|
|
Type *Ty;
|
|
LocTy ExplicitTypeLoc = Lex.getLoc();
|
|
if (ParseType(Ty) ||
|
|
ParseToken(lltok::comma, "expected comma after alias or ifunc's type"))
|
|
return true;
|
|
|
|
Constant *Aliasee;
|
|
LocTy AliaseeLoc = Lex.getLoc();
|
|
if (Lex.getKind() != lltok::kw_bitcast &&
|
|
Lex.getKind() != lltok::kw_getelementptr &&
|
|
Lex.getKind() != lltok::kw_addrspacecast &&
|
|
Lex.getKind() != lltok::kw_inttoptr) {
|
|
if (ParseGlobalTypeAndValue(Aliasee))
|
|
return true;
|
|
} else {
|
|
// The bitcast dest type is not present, it is implied by the dest type.
|
|
ValID ID;
|
|
if (ParseValID(ID))
|
|
return true;
|
|
if (ID.Kind != ValID::t_Constant)
|
|
return Error(AliaseeLoc, "invalid aliasee");
|
|
Aliasee = ID.ConstantVal;
|
|
}
|
|
|
|
Type *AliaseeType = Aliasee->getType();
|
|
auto *PTy = dyn_cast<PointerType>(AliaseeType);
|
|
if (!PTy)
|
|
return Error(AliaseeLoc, "An alias or ifunc must have pointer type");
|
|
unsigned AddrSpace = PTy->getAddressSpace();
|
|
|
|
if (IsAlias && Ty != PTy->getElementType())
|
|
return Error(
|
|
ExplicitTypeLoc,
|
|
"explicit pointee type doesn't match operand's pointee type");
|
|
|
|
if (!IsAlias && !PTy->getElementType()->isFunctionTy())
|
|
return Error(
|
|
ExplicitTypeLoc,
|
|
"explicit pointee type should be a function type");
|
|
|
|
GlobalValue *GVal = nullptr;
|
|
|
|
// See if the alias was forward referenced, if so, prepare to replace the
|
|
// forward reference.
|
|
if (!Name.empty()) {
|
|
GVal = M->getNamedValue(Name);
|
|
if (GVal) {
|
|
if (!ForwardRefVals.erase(Name))
|
|
return Error(NameLoc, "redefinition of global '@" + Name + "'");
|
|
}
|
|
} else {
|
|
auto I = ForwardRefValIDs.find(NumberedVals.size());
|
|
if (I != ForwardRefValIDs.end()) {
|
|
GVal = I->second.first;
|
|
ForwardRefValIDs.erase(I);
|
|
}
|
|
}
|
|
|
|
// Okay, create the alias but do not insert it into the module yet.
|
|
std::unique_ptr<GlobalIndirectSymbol> GA;
|
|
if (IsAlias)
|
|
GA.reset(GlobalAlias::create(Ty, AddrSpace,
|
|
(GlobalValue::LinkageTypes)Linkage, Name,
|
|
Aliasee, /*Parent*/ nullptr));
|
|
else
|
|
GA.reset(GlobalIFunc::create(Ty, AddrSpace,
|
|
(GlobalValue::LinkageTypes)Linkage, Name,
|
|
Aliasee, /*Parent*/ nullptr));
|
|
GA->setThreadLocalMode(TLM);
|
|
GA->setVisibility((GlobalValue::VisibilityTypes)Visibility);
|
|
GA->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass);
|
|
GA->setUnnamedAddr(UnnamedAddr);
|
|
|
|
if (Name.empty())
|
|
NumberedVals.push_back(GA.get());
|
|
|
|
if (GVal) {
|
|
// Verify that types agree.
|
|
if (GVal->getType() != GA->getType())
|
|
return Error(
|
|
ExplicitTypeLoc,
|
|
"forward reference and definition of alias have different types");
|
|
|
|
// If they agree, just RAUW the old value with the alias and remove the
|
|
// forward ref info.
|
|
GVal->replaceAllUsesWith(GA.get());
|
|
GVal->eraseFromParent();
|
|
}
|
|
|
|
// Insert into the module, we know its name won't collide now.
|
|
if (IsAlias)
|
|
M->getAliasList().push_back(cast<GlobalAlias>(GA.get()));
|
|
else
|
|
M->getIFuncList().push_back(cast<GlobalIFunc>(GA.get()));
|
|
assert(GA->getName() == Name && "Should not be a name conflict!");
|
|
|
|
// The module owns this now
|
|
GA.release();
|
|
|
|
return false;
|
|
}
|
|
|
|
/// ParseGlobal
|
|
/// ::= GlobalVar '=' OptionalLinkage OptionalVisibility OptionalDLLStorageClass
|
|
/// OptionalThreadLocal OptionalUnnamedAddr OptionalAddrSpace
|
|
/// OptionalExternallyInitialized GlobalType Type Const
|
|
/// ::= OptionalLinkage OptionalVisibility OptionalDLLStorageClass
|
|
/// OptionalThreadLocal OptionalUnnamedAddr OptionalAddrSpace
|
|
/// OptionalExternallyInitialized GlobalType Type Const
|
|
///
|
|
/// Everything up to and including OptionalUnnamedAddr has been parsed
|
|
/// already.
|
|
///
|
|
bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc,
|
|
unsigned Linkage, bool HasLinkage,
|
|
unsigned Visibility, unsigned DLLStorageClass,
|
|
GlobalVariable::ThreadLocalMode TLM,
|
|
GlobalVariable::UnnamedAddr UnnamedAddr) {
|
|
if (!isValidVisibilityForLinkage(Visibility, Linkage))
|
|
return Error(NameLoc,
|
|
"symbol with local linkage must have default visibility");
|
|
|
|
unsigned AddrSpace;
|
|
bool IsConstant, IsExternallyInitialized;
|
|
LocTy IsExternallyInitializedLoc;
|
|
LocTy TyLoc;
|
|
|
|
Type *Ty = nullptr;
|
|
if (ParseOptionalAddrSpace(AddrSpace) ||
|
|
ParseOptionalToken(lltok::kw_externally_initialized,
|
|
IsExternallyInitialized,
|
|
&IsExternallyInitializedLoc) ||
|
|
ParseGlobalType(IsConstant) ||
|
|
ParseType(Ty, TyLoc))
|
|
return true;
|
|
|
|
// If the linkage is specified and is external, then no initializer is
|
|
// present.
|
|
Constant *Init = nullptr;
|
|
if (!HasLinkage ||
|
|
!GlobalValue::isValidDeclarationLinkage(
|
|
(GlobalValue::LinkageTypes)Linkage)) {
|
|
if (ParseGlobalValue(Ty, Init))
|
|
return true;
|
|
}
|
|
|
|
if (Ty->isFunctionTy() || !PointerType::isValidElementType(Ty))
|
|
return Error(TyLoc, "invalid type for global variable");
|
|
|
|
GlobalValue *GVal = nullptr;
|
|
|
|
// See if the global was forward referenced, if so, use the global.
|
|
if (!Name.empty()) {
|
|
GVal = M->getNamedValue(Name);
|
|
if (GVal) {
|
|
if (!ForwardRefVals.erase(Name))
|
|
return Error(NameLoc, "redefinition of global '@" + Name + "'");
|
|
}
|
|
} else {
|
|
auto I = ForwardRefValIDs.find(NumberedVals.size());
|
|
if (I != ForwardRefValIDs.end()) {
|
|
GVal = I->second.first;
|
|
ForwardRefValIDs.erase(I);
|
|
}
|
|
}
|
|
|
|
GlobalVariable *GV;
|
|
if (!GVal) {
|
|
GV = new GlobalVariable(*M, Ty, false, GlobalValue::ExternalLinkage, nullptr,
|
|
Name, nullptr, GlobalVariable::NotThreadLocal,
|
|
AddrSpace);
|
|
} else {
|
|
if (GVal->getValueType() != Ty)
|
|
return Error(TyLoc,
|
|
"forward reference and definition of global have different types");
|
|
|
|
GV = cast<GlobalVariable>(GVal);
|
|
|
|
// Move the forward-reference to the correct spot in the module.
|
|
M->getGlobalList().splice(M->global_end(), M->getGlobalList(), GV);
|
|
}
|
|
|
|
if (Name.empty())
|
|
NumberedVals.push_back(GV);
|
|
|
|
// Set the parsed properties on the global.
|
|
if (Init)
|
|
GV->setInitializer(Init);
|
|
GV->setConstant(IsConstant);
|
|
GV->setLinkage((GlobalValue::LinkageTypes)Linkage);
|
|
GV->setVisibility((GlobalValue::VisibilityTypes)Visibility);
|
|
GV->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass);
|
|
GV->setExternallyInitialized(IsExternallyInitialized);
|
|
GV->setThreadLocalMode(TLM);
|
|
GV->setUnnamedAddr(UnnamedAddr);
|
|
|
|
// Parse attributes on the global.
|
|
while (Lex.getKind() == lltok::comma) {
|
|
Lex.Lex();
|
|
|
|
if (Lex.getKind() == lltok::kw_section) {
|
|
Lex.Lex();
|
|
GV->setSection(Lex.getStrVal());
|
|
if (ParseToken(lltok::StringConstant, "expected global section string"))
|
|
return true;
|
|
} else if (Lex.getKind() == lltok::kw_align) {
|
|
unsigned Alignment;
|
|
if (ParseOptionalAlignment(Alignment)) return true;
|
|
GV->setAlignment(Alignment);
|
|
} else if (Lex.getKind() == lltok::MetadataVar) {
|
|
if (ParseGlobalObjectMetadataAttachment(*GV))
|
|
return true;
|
|
} else {
|
|
Comdat *C;
|
|
if (parseOptionalComdat(Name, C))
|
|
return true;
|
|
if (C)
|
|
GV->setComdat(C);
|
|
else
|
|
return TokError("unknown global variable property!");
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// ParseUnnamedAttrGrp
|
|
/// ::= 'attributes' AttrGrpID '=' '{' AttrValPair+ '}'
|
|
bool LLParser::ParseUnnamedAttrGrp() {
|
|
assert(Lex.getKind() == lltok::kw_attributes);
|
|
LocTy AttrGrpLoc = Lex.getLoc();
|
|
Lex.Lex();
|
|
|
|
if (Lex.getKind() != lltok::AttrGrpID)
|
|
return TokError("expected attribute group id");
|
|
|
|
unsigned VarID = Lex.getUIntVal();
|
|
std::vector<unsigned> unused;
|
|
LocTy BuiltinLoc;
|
|
Lex.Lex();
|
|
|
|
if (ParseToken(lltok::equal, "expected '=' here") ||
|
|
ParseToken(lltok::lbrace, "expected '{' here") ||
|
|
ParseFnAttributeValuePairs(NumberedAttrBuilders[VarID], unused, true,
|
|
BuiltinLoc) ||
|
|
ParseToken(lltok::rbrace, "expected end of attribute group"))
|
|
return true;
|
|
|
|
if (!NumberedAttrBuilders[VarID].hasAttributes())
|
|
return Error(AttrGrpLoc, "attribute group has no attributes");
|
|
|
|
return false;
|
|
}
|
|
|
|
/// ParseFnAttributeValuePairs
|
|
/// ::= <attr> | <attr> '=' <value>
|
|
bool LLParser::ParseFnAttributeValuePairs(AttrBuilder &B,
|
|
std::vector<unsigned> &FwdRefAttrGrps,
|
|
bool inAttrGrp, LocTy &BuiltinLoc) {
|
|
bool HaveError = false;
|
|
|
|
B.clear();
|
|
|
|
while (true) {
|
|
lltok::Kind Token = Lex.getKind();
|
|
if (Token == lltok::kw_builtin)
|
|
BuiltinLoc = Lex.getLoc();
|
|
switch (Token) {
|
|
default:
|
|
if (!inAttrGrp) return HaveError;
|
|
return Error(Lex.getLoc(), "unterminated attribute group");
|
|
case lltok::rbrace:
|
|
// Finished.
|
|
return false;
|
|
|
|
case lltok::AttrGrpID: {
|
|
// Allow a function to reference an attribute group:
|
|
//
|
|
// define void @foo() #1 { ... }
|
|
if (inAttrGrp)
|
|
HaveError |=
|
|
Error(Lex.getLoc(),
|
|
"cannot have an attribute group reference in an attribute group");
|
|
|
|
unsigned AttrGrpNum = Lex.getUIntVal();
|
|
if (inAttrGrp) break;
|
|
|
|
// Save the reference to the attribute group. We'll fill it in later.
|
|
FwdRefAttrGrps.push_back(AttrGrpNum);
|
|
break;
|
|
}
|
|
// Target-dependent attributes:
|
|
case lltok::StringConstant: {
|
|
if (ParseStringAttribute(B))
|
|
return true;
|
|
continue;
|
|
}
|
|
|
|
// Target-independent attributes:
|
|
case lltok::kw_align: {
|
|
// As a hack, we allow function alignment to be initially parsed as an
|
|
// attribute on a function declaration/definition or added to an attribute
|
|
// group and later moved to the alignment field.
|
|
unsigned Alignment;
|
|
if (inAttrGrp) {
|
|
Lex.Lex();
|
|
if (ParseToken(lltok::equal, "expected '=' here") ||
|
|
ParseUInt32(Alignment))
|
|
return true;
|
|
} else {
|
|
if (ParseOptionalAlignment(Alignment))
|
|
return true;
|
|
}
|
|
B.addAlignmentAttr(Alignment);
|
|
continue;
|
|
}
|
|
case lltok::kw_alignstack: {
|
|
unsigned Alignment;
|
|
if (inAttrGrp) {
|
|
Lex.Lex();
|
|
if (ParseToken(lltok::equal, "expected '=' here") ||
|
|
ParseUInt32(Alignment))
|
|
return true;
|
|
} else {
|
|
if (ParseOptionalStackAlignment(Alignment))
|
|
return true;
|
|
}
|
|
B.addStackAlignmentAttr(Alignment);
|
|
continue;
|
|
}
|
|
case lltok::kw_allocsize: {
|
|
unsigned ElemSizeArg;
|
|
Optional<unsigned> NumElemsArg;
|
|
// inAttrGrp doesn't matter; we only support allocsize(a[, b])
|
|
if (parseAllocSizeArguments(ElemSizeArg, NumElemsArg))
|
|
return true;
|
|
B.addAllocSizeAttr(ElemSizeArg, NumElemsArg);
|
|
continue;
|
|
}
|
|
case lltok::kw_alwaysinline: B.addAttribute(Attribute::AlwaysInline); break;
|
|
case lltok::kw_argmemonly: B.addAttribute(Attribute::ArgMemOnly); break;
|
|
case lltok::kw_builtin: B.addAttribute(Attribute::Builtin); break;
|
|
case lltok::kw_cold: B.addAttribute(Attribute::Cold); break;
|
|
case lltok::kw_convergent: B.addAttribute(Attribute::Convergent); break;
|
|
case lltok::kw_inaccessiblememonly:
|
|
B.addAttribute(Attribute::InaccessibleMemOnly); break;
|
|
case lltok::kw_inaccessiblemem_or_argmemonly:
|
|
B.addAttribute(Attribute::InaccessibleMemOrArgMemOnly); break;
|
|
case lltok::kw_inlinehint: B.addAttribute(Attribute::InlineHint); break;
|
|
case lltok::kw_jumptable: B.addAttribute(Attribute::JumpTable); break;
|
|
case lltok::kw_minsize: B.addAttribute(Attribute::MinSize); break;
|
|
case lltok::kw_naked: B.addAttribute(Attribute::Naked); break;
|
|
case lltok::kw_nobuiltin: B.addAttribute(Attribute::NoBuiltin); break;
|
|
case lltok::kw_noduplicate: B.addAttribute(Attribute::NoDuplicate); break;
|
|
case lltok::kw_noimplicitfloat:
|
|
B.addAttribute(Attribute::NoImplicitFloat); break;
|
|
case lltok::kw_noinline: B.addAttribute(Attribute::NoInline); break;
|
|
case lltok::kw_nonlazybind: B.addAttribute(Attribute::NonLazyBind); break;
|
|
case lltok::kw_noredzone: B.addAttribute(Attribute::NoRedZone); break;
|
|
case lltok::kw_noreturn: B.addAttribute(Attribute::NoReturn); break;
|
|
case lltok::kw_norecurse: B.addAttribute(Attribute::NoRecurse); break;
|
|
case lltok::kw_nounwind: B.addAttribute(Attribute::NoUnwind); break;
|
|
case lltok::kw_optnone: B.addAttribute(Attribute::OptimizeNone); break;
|
|
case lltok::kw_optsize: B.addAttribute(Attribute::OptimizeForSize); break;
|
|
case lltok::kw_readnone: B.addAttribute(Attribute::ReadNone); break;
|
|
case lltok::kw_readonly: B.addAttribute(Attribute::ReadOnly); break;
|
|
case lltok::kw_returns_twice:
|
|
B.addAttribute(Attribute::ReturnsTwice); break;
|
|
case lltok::kw_ssp: B.addAttribute(Attribute::StackProtect); break;
|
|
case lltok::kw_sspreq: B.addAttribute(Attribute::StackProtectReq); break;
|
|
case lltok::kw_sspstrong:
|
|
B.addAttribute(Attribute::StackProtectStrong); break;
|
|
case lltok::kw_safestack: B.addAttribute(Attribute::SafeStack); break;
|
|
case lltok::kw_sanitize_address:
|
|
B.addAttribute(Attribute::SanitizeAddress); break;
|
|
case lltok::kw_sanitize_thread:
|
|
B.addAttribute(Attribute::SanitizeThread); break;
|
|
case lltok::kw_sanitize_memory:
|
|
B.addAttribute(Attribute::SanitizeMemory); break;
|
|
case lltok::kw_uwtable: B.addAttribute(Attribute::UWTable); break;
|
|
case lltok::kw_writeonly: B.addAttribute(Attribute::WriteOnly); break;
|
|
|
|
// Error handling.
|
|
case lltok::kw_inreg:
|
|
case lltok::kw_signext:
|
|
case lltok::kw_zeroext:
|
|
HaveError |=
|
|
Error(Lex.getLoc(),
|
|
"invalid use of attribute on a function");
|
|
break;
|
|
case lltok::kw_byval:
|
|
case lltok::kw_dereferenceable:
|
|
case lltok::kw_dereferenceable_or_null:
|
|
case lltok::kw_inalloca:
|
|
case lltok::kw_nest:
|
|
case lltok::kw_noalias:
|
|
case lltok::kw_nocapture:
|
|
case lltok::kw_nonnull:
|
|
case lltok::kw_returned:
|
|
case lltok::kw_sret:
|
|
case lltok::kw_swifterror:
|
|
case lltok::kw_swiftself:
|
|
HaveError |=
|
|
Error(Lex.getLoc(),
|
|
"invalid use of parameter-only attribute on a function");
|
|
break;
|
|
}
|
|
|
|
Lex.Lex();
|
|
}
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// GlobalValue Reference/Resolution Routines.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
static inline GlobalValue *createGlobalFwdRef(Module *M, PointerType *PTy,
|
|
const std::string &Name) {
|
|
if (auto *FT = dyn_cast<FunctionType>(PTy->getElementType()))
|
|
return Function::Create(FT, GlobalValue::ExternalWeakLinkage, Name, M);
|
|
else
|
|
return new GlobalVariable(*M, PTy->getElementType(), false,
|
|
GlobalValue::ExternalWeakLinkage, nullptr, Name,
|
|
nullptr, GlobalVariable::NotThreadLocal,
|
|
PTy->getAddressSpace());
|
|
}
|
|
|
|
/// GetGlobalVal - Get a value with the specified name or ID, creating a
|
|
/// forward reference record if needed. This can return null if the value
|
|
/// exists but does not have the right type.
|
|
GlobalValue *LLParser::GetGlobalVal(const std::string &Name, Type *Ty,
|
|
LocTy Loc) {
|
|
PointerType *PTy = dyn_cast<PointerType>(Ty);
|
|
if (!PTy) {
|
|
Error(Loc, "global variable reference must have pointer type");
|
|
return nullptr;
|
|
}
|
|
|
|
// Look this name up in the normal function symbol table.
|
|
GlobalValue *Val =
|
|
cast_or_null<GlobalValue>(M->getValueSymbolTable().lookup(Name));
|
|
|
|
// If this is a forward reference for the value, see if we already created a
|
|
// forward ref record.
|
|
if (!Val) {
|
|
auto I = ForwardRefVals.find(Name);
|
|
if (I != ForwardRefVals.end())
|
|
Val = I->second.first;
|
|
}
|
|
|
|
// If we have the value in the symbol table or fwd-ref table, return it.
|
|
if (Val) {
|
|
if (Val->getType() == Ty) return Val;
|
|
Error(Loc, "'@" + Name + "' defined with type '" +
|
|
getTypeString(Val->getType()) + "'");
|
|
return nullptr;
|
|
}
|
|
|
|
// Otherwise, create a new forward reference for this value and remember it.
|
|
GlobalValue *FwdVal = createGlobalFwdRef(M, PTy, Name);
|
|
ForwardRefVals[Name] = std::make_pair(FwdVal, Loc);
|
|
return FwdVal;
|
|
}
|
|
|
|
GlobalValue *LLParser::GetGlobalVal(unsigned ID, Type *Ty, LocTy Loc) {
|
|
PointerType *PTy = dyn_cast<PointerType>(Ty);
|
|
if (!PTy) {
|
|
Error(Loc, "global variable reference must have pointer type");
|
|
return nullptr;
|
|
}
|
|
|
|
GlobalValue *Val = ID < NumberedVals.size() ? NumberedVals[ID] : nullptr;
|
|
|
|
// If this is a forward reference for the value, see if we already created a
|
|
// forward ref record.
|
|
if (!Val) {
|
|
auto I = ForwardRefValIDs.find(ID);
|
|
if (I != ForwardRefValIDs.end())
|
|
Val = I->second.first;
|
|
}
|
|
|
|
// If we have the value in the symbol table or fwd-ref table, return it.
|
|
if (Val) {
|
|
if (Val->getType() == Ty) return Val;
|
|
Error(Loc, "'@" + Twine(ID) + "' defined with type '" +
|
|
getTypeString(Val->getType()) + "'");
|
|
return nullptr;
|
|
}
|
|
|
|
// Otherwise, create a new forward reference for this value and remember it.
|
|
GlobalValue *FwdVal = createGlobalFwdRef(M, PTy, "");
|
|
ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc);
|
|
return FwdVal;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Comdat Reference/Resolution Routines.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
Comdat *LLParser::getComdat(const std::string &Name, LocTy Loc) {
|
|
// Look this name up in the comdat symbol table.
|
|
Module::ComdatSymTabType &ComdatSymTab = M->getComdatSymbolTable();
|
|
Module::ComdatSymTabType::iterator I = ComdatSymTab.find(Name);
|
|
if (I != ComdatSymTab.end())
|
|
return &I->second;
|
|
|
|
// Otherwise, create a new forward reference for this value and remember it.
|
|
Comdat *C = M->getOrInsertComdat(Name);
|
|
ForwardRefComdats[Name] = Loc;
|
|
return C;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Helper Routines.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// ParseToken - If the current token has the specified kind, eat it and return
|
|
/// success. Otherwise, emit the specified error and return failure.
|
|
bool LLParser::ParseToken(lltok::Kind T, const char *ErrMsg) {
|
|
if (Lex.getKind() != T)
|
|
return TokError(ErrMsg);
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
/// ParseStringConstant
|
|
/// ::= StringConstant
|
|
bool LLParser::ParseStringConstant(std::string &Result) {
|
|
if (Lex.getKind() != lltok::StringConstant)
|
|
return TokError("expected string constant");
|
|
Result = Lex.getStrVal();
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
/// ParseUInt32
|
|
/// ::= uint32
|
|
bool LLParser::ParseUInt32(uint32_t &Val) {
|
|
if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned())
|
|
return TokError("expected integer");
|
|
uint64_t Val64 = Lex.getAPSIntVal().getLimitedValue(0xFFFFFFFFULL+1);
|
|
if (Val64 != unsigned(Val64))
|
|
return TokError("expected 32-bit integer (too large)");
|
|
Val = Val64;
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
/// ParseUInt64
|
|
/// ::= uint64
|
|
bool LLParser::ParseUInt64(uint64_t &Val) {
|
|
if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned())
|
|
return TokError("expected integer");
|
|
Val = Lex.getAPSIntVal().getLimitedValue();
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
/// ParseTLSModel
|
|
/// := 'localdynamic'
|
|
/// := 'initialexec'
|
|
/// := 'localexec'
|
|
bool LLParser::ParseTLSModel(GlobalVariable::ThreadLocalMode &TLM) {
|
|
switch (Lex.getKind()) {
|
|
default:
|
|
return TokError("expected localdynamic, initialexec or localexec");
|
|
case lltok::kw_localdynamic:
|
|
TLM = GlobalVariable::LocalDynamicTLSModel;
|
|
break;
|
|
case lltok::kw_initialexec:
|
|
TLM = GlobalVariable::InitialExecTLSModel;
|
|
break;
|
|
case lltok::kw_localexec:
|
|
TLM = GlobalVariable::LocalExecTLSModel;
|
|
break;
|
|
}
|
|
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
/// ParseOptionalThreadLocal
|
|
/// := /*empty*/
|
|
/// := 'thread_local'
|
|
/// := 'thread_local' '(' tlsmodel ')'
|
|
bool LLParser::ParseOptionalThreadLocal(GlobalVariable::ThreadLocalMode &TLM) {
|
|
TLM = GlobalVariable::NotThreadLocal;
|
|
if (!EatIfPresent(lltok::kw_thread_local))
|
|
return false;
|
|
|
|
TLM = GlobalVariable::GeneralDynamicTLSModel;
|
|
if (Lex.getKind() == lltok::lparen) {
|
|
Lex.Lex();
|
|
return ParseTLSModel(TLM) ||
|
|
ParseToken(lltok::rparen, "expected ')' after thread local model");
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// ParseOptionalAddrSpace
|
|
/// := /*empty*/
|
|
/// := 'addrspace' '(' uint32 ')'
|
|
bool LLParser::ParseOptionalAddrSpace(unsigned &AddrSpace) {
|
|
AddrSpace = 0;
|
|
if (!EatIfPresent(lltok::kw_addrspace))
|
|
return false;
|
|
return ParseToken(lltok::lparen, "expected '(' in address space") ||
|
|
ParseUInt32(AddrSpace) ||
|
|
ParseToken(lltok::rparen, "expected ')' in address space");
|
|
}
|
|
|
|
/// ParseStringAttribute
|
|
/// := StringConstant
|
|
/// := StringConstant '=' StringConstant
|
|
bool LLParser::ParseStringAttribute(AttrBuilder &B) {
|
|
std::string Attr = Lex.getStrVal();
|
|
Lex.Lex();
|
|
std::string Val;
|
|
if (EatIfPresent(lltok::equal) && ParseStringConstant(Val))
|
|
return true;
|
|
B.addAttribute(Attr, Val);
|
|
return false;
|
|
}
|
|
|
|
/// ParseOptionalParamAttrs - Parse a potentially empty list of parameter attributes.
|
|
bool LLParser::ParseOptionalParamAttrs(AttrBuilder &B) {
|
|
bool HaveError = false;
|
|
|
|
B.clear();
|
|
|
|
while (true) {
|
|
lltok::Kind Token = Lex.getKind();
|
|
switch (Token) {
|
|
default: // End of attributes.
|
|
return HaveError;
|
|
case lltok::StringConstant: {
|
|
if (ParseStringAttribute(B))
|
|
return true;
|
|
continue;
|
|
}
|
|
case lltok::kw_align: {
|
|
unsigned Alignment;
|
|
if (ParseOptionalAlignment(Alignment))
|
|
return true;
|
|
B.addAlignmentAttr(Alignment);
|
|
continue;
|
|
}
|
|
case lltok::kw_byval: B.addAttribute(Attribute::ByVal); break;
|
|
case lltok::kw_dereferenceable: {
|
|
uint64_t Bytes;
|
|
if (ParseOptionalDerefAttrBytes(lltok::kw_dereferenceable, Bytes))
|
|
return true;
|
|
B.addDereferenceableAttr(Bytes);
|
|
continue;
|
|
}
|
|
case lltok::kw_dereferenceable_or_null: {
|
|
uint64_t Bytes;
|
|
if (ParseOptionalDerefAttrBytes(lltok::kw_dereferenceable_or_null, Bytes))
|
|
return true;
|
|
B.addDereferenceableOrNullAttr(Bytes);
|
|
continue;
|
|
}
|
|
case lltok::kw_inalloca: B.addAttribute(Attribute::InAlloca); break;
|
|
case lltok::kw_inreg: B.addAttribute(Attribute::InReg); break;
|
|
case lltok::kw_nest: B.addAttribute(Attribute::Nest); break;
|
|
case lltok::kw_noalias: B.addAttribute(Attribute::NoAlias); break;
|
|
case lltok::kw_nocapture: B.addAttribute(Attribute::NoCapture); break;
|
|
case lltok::kw_nonnull: B.addAttribute(Attribute::NonNull); break;
|
|
case lltok::kw_readnone: B.addAttribute(Attribute::ReadNone); break;
|
|
case lltok::kw_readonly: B.addAttribute(Attribute::ReadOnly); break;
|
|
case lltok::kw_returned: B.addAttribute(Attribute::Returned); break;
|
|
case lltok::kw_signext: B.addAttribute(Attribute::SExt); break;
|
|
case lltok::kw_sret: B.addAttribute(Attribute::StructRet); break;
|
|
case lltok::kw_swifterror: B.addAttribute(Attribute::SwiftError); break;
|
|
case lltok::kw_swiftself: B.addAttribute(Attribute::SwiftSelf); break;
|
|
case lltok::kw_writeonly: B.addAttribute(Attribute::WriteOnly); break;
|
|
case lltok::kw_zeroext: B.addAttribute(Attribute::ZExt); break;
|
|
|
|
case lltok::kw_alignstack:
|
|
case lltok::kw_alwaysinline:
|
|
case lltok::kw_argmemonly:
|
|
case lltok::kw_builtin:
|
|
case lltok::kw_inlinehint:
|
|
case lltok::kw_jumptable:
|
|
case lltok::kw_minsize:
|
|
case lltok::kw_naked:
|
|
case lltok::kw_nobuiltin:
|
|
case lltok::kw_noduplicate:
|
|
case lltok::kw_noimplicitfloat:
|
|
case lltok::kw_noinline:
|
|
case lltok::kw_nonlazybind:
|
|
case lltok::kw_noredzone:
|
|
case lltok::kw_noreturn:
|
|
case lltok::kw_nounwind:
|
|
case lltok::kw_optnone:
|
|
case lltok::kw_optsize:
|
|
case lltok::kw_returns_twice:
|
|
case lltok::kw_sanitize_address:
|
|
case lltok::kw_sanitize_memory:
|
|
case lltok::kw_sanitize_thread:
|
|
case lltok::kw_ssp:
|
|
case lltok::kw_sspreq:
|
|
case lltok::kw_sspstrong:
|
|
case lltok::kw_safestack:
|
|
case lltok::kw_uwtable:
|
|
HaveError |= Error(Lex.getLoc(), "invalid use of function-only attribute");
|
|
break;
|
|
}
|
|
|
|
Lex.Lex();
|
|
}
|
|
}
|
|
|
|
/// ParseOptionalReturnAttrs - Parse a potentially empty list of return attributes.
|
|
bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) {
|
|
bool HaveError = false;
|
|
|
|
B.clear();
|
|
|
|
while (true) {
|
|
lltok::Kind Token = Lex.getKind();
|
|
switch (Token) {
|
|
default: // End of attributes.
|
|
return HaveError;
|
|
case lltok::StringConstant: {
|
|
if (ParseStringAttribute(B))
|
|
return true;
|
|
continue;
|
|
}
|
|
case lltok::kw_dereferenceable: {
|
|
uint64_t Bytes;
|
|
if (ParseOptionalDerefAttrBytes(lltok::kw_dereferenceable, Bytes))
|
|
return true;
|
|
B.addDereferenceableAttr(Bytes);
|
|
continue;
|
|
}
|
|
case lltok::kw_dereferenceable_or_null: {
|
|
uint64_t Bytes;
|
|
if (ParseOptionalDerefAttrBytes(lltok::kw_dereferenceable_or_null, Bytes))
|
|
return true;
|
|
B.addDereferenceableOrNullAttr(Bytes);
|
|
continue;
|
|
}
|
|
case lltok::kw_align: {
|
|
unsigned Alignment;
|
|
if (ParseOptionalAlignment(Alignment))
|
|
return true;
|
|
B.addAlignmentAttr(Alignment);
|
|
continue;
|
|
}
|
|
case lltok::kw_inreg: B.addAttribute(Attribute::InReg); break;
|
|
case lltok::kw_noalias: B.addAttribute(Attribute::NoAlias); break;
|
|
case lltok::kw_nonnull: B.addAttribute(Attribute::NonNull); break;
|
|
case lltok::kw_signext: B.addAttribute(Attribute::SExt); break;
|
|
case lltok::kw_zeroext: B.addAttribute(Attribute::ZExt); break;
|
|
|
|
// Error handling.
|
|
case lltok::kw_byval:
|
|
case lltok::kw_inalloca:
|
|
case lltok::kw_nest:
|
|
case lltok::kw_nocapture:
|
|
case lltok::kw_returned:
|
|
case lltok::kw_sret:
|
|
case lltok::kw_swifterror:
|
|
case lltok::kw_swiftself:
|
|
HaveError |= Error(Lex.getLoc(), "invalid use of parameter-only attribute");
|
|
break;
|
|
|
|
case lltok::kw_alignstack:
|
|
case lltok::kw_alwaysinline:
|
|
case lltok::kw_argmemonly:
|
|
case lltok::kw_builtin:
|
|
case lltok::kw_cold:
|
|
case lltok::kw_inlinehint:
|
|
case lltok::kw_jumptable:
|
|
case lltok::kw_minsize:
|
|
case lltok::kw_naked:
|
|
case lltok::kw_nobuiltin:
|
|
case lltok::kw_noduplicate:
|
|
case lltok::kw_noimplicitfloat:
|
|
case lltok::kw_noinline:
|
|
case lltok::kw_nonlazybind:
|
|
case lltok::kw_noredzone:
|
|
case lltok::kw_noreturn:
|
|
case lltok::kw_nounwind:
|
|
case lltok::kw_optnone:
|
|
case lltok::kw_optsize:
|
|
case lltok::kw_returns_twice:
|
|
case lltok::kw_sanitize_address:
|
|
case lltok::kw_sanitize_memory:
|
|
case lltok::kw_sanitize_thread:
|
|
case lltok::kw_ssp:
|
|
case lltok::kw_sspreq:
|
|
case lltok::kw_sspstrong:
|
|
case lltok::kw_safestack:
|
|
case lltok::kw_uwtable:
|
|
HaveError |= Error(Lex.getLoc(), "invalid use of function-only attribute");
|
|
break;
|
|
|
|
case lltok::kw_readnone:
|
|
case lltok::kw_readonly:
|
|
HaveError |= Error(Lex.getLoc(), "invalid use of attribute on return type");
|
|
}
|
|
|
|
Lex.Lex();
|
|
}
|
|
}
|
|
|
|
static unsigned parseOptionalLinkageAux(lltok::Kind Kind, bool &HasLinkage) {
|
|
HasLinkage = true;
|
|
switch (Kind) {
|
|
default:
|
|
HasLinkage = false;
|
|
return GlobalValue::ExternalLinkage;
|
|
case lltok::kw_private:
|
|
return GlobalValue::PrivateLinkage;
|
|
case lltok::kw_internal:
|
|
return GlobalValue::InternalLinkage;
|
|
case lltok::kw_weak:
|
|
return GlobalValue::WeakAnyLinkage;
|
|
case lltok::kw_weak_odr:
|
|
return GlobalValue::WeakODRLinkage;
|
|
case lltok::kw_linkonce:
|
|
return GlobalValue::LinkOnceAnyLinkage;
|
|
case lltok::kw_linkonce_odr:
|
|
return GlobalValue::LinkOnceODRLinkage;
|
|
case lltok::kw_available_externally:
|
|
return GlobalValue::AvailableExternallyLinkage;
|
|
case lltok::kw_appending:
|
|
return GlobalValue::AppendingLinkage;
|
|
case lltok::kw_common:
|
|
return GlobalValue::CommonLinkage;
|
|
case lltok::kw_extern_weak:
|
|
return GlobalValue::ExternalWeakLinkage;
|
|
case lltok::kw_external:
|
|
return GlobalValue::ExternalLinkage;
|
|
}
|
|
}
|
|
|
|
/// ParseOptionalLinkage
|
|
/// ::= /*empty*/
|
|
/// ::= 'private'
|
|
/// ::= 'internal'
|
|
/// ::= 'weak'
|
|
/// ::= 'weak_odr'
|
|
/// ::= 'linkonce'
|
|
/// ::= 'linkonce_odr'
|
|
/// ::= 'available_externally'
|
|
/// ::= 'appending'
|
|
/// ::= 'common'
|
|
/// ::= 'extern_weak'
|
|
/// ::= 'external'
|
|
bool LLParser::ParseOptionalLinkage(unsigned &Res, bool &HasLinkage,
|
|
unsigned &Visibility,
|
|
unsigned &DLLStorageClass) {
|
|
Res = parseOptionalLinkageAux(Lex.getKind(), HasLinkage);
|
|
if (HasLinkage)
|
|
Lex.Lex();
|
|
ParseOptionalVisibility(Visibility);
|
|
ParseOptionalDLLStorageClass(DLLStorageClass);
|
|
return false;
|
|
}
|
|
|
|
/// ParseOptionalVisibility
|
|
/// ::= /*empty*/
|
|
/// ::= 'default'
|
|
/// ::= 'hidden'
|
|
/// ::= 'protected'
|
|
///
|
|
void LLParser::ParseOptionalVisibility(unsigned &Res) {
|
|
switch (Lex.getKind()) {
|
|
default:
|
|
Res = GlobalValue::DefaultVisibility;
|
|
return;
|
|
case lltok::kw_default:
|
|
Res = GlobalValue::DefaultVisibility;
|
|
break;
|
|
case lltok::kw_hidden:
|
|
Res = GlobalValue::HiddenVisibility;
|
|
break;
|
|
case lltok::kw_protected:
|
|
Res = GlobalValue::ProtectedVisibility;
|
|
break;
|
|
}
|
|
Lex.Lex();
|
|
}
|
|
|
|
/// ParseOptionalDLLStorageClass
|
|
/// ::= /*empty*/
|
|
/// ::= 'dllimport'
|
|
/// ::= 'dllexport'
|
|
///
|
|
void LLParser::ParseOptionalDLLStorageClass(unsigned &Res) {
|
|
switch (Lex.getKind()) {
|
|
default:
|
|
Res = GlobalValue::DefaultStorageClass;
|
|
return;
|
|
case lltok::kw_dllimport:
|
|
Res = GlobalValue::DLLImportStorageClass;
|
|
break;
|
|
case lltok::kw_dllexport:
|
|
Res = GlobalValue::DLLExportStorageClass;
|
|
break;
|
|
}
|
|
Lex.Lex();
|
|
}
|
|
|
|
/// ParseOptionalCallingConv
|
|
/// ::= /*empty*/
|
|
/// ::= 'ccc'
|
|
/// ::= 'fastcc'
|
|
/// ::= 'intel_ocl_bicc'
|
|
/// ::= 'coldcc'
|
|
/// ::= 'x86_stdcallcc'
|
|
/// ::= 'x86_fastcallcc'
|
|
/// ::= 'x86_thiscallcc'
|
|
/// ::= 'x86_vectorcallcc'
|
|
/// ::= 'arm_apcscc'
|
|
/// ::= 'arm_aapcscc'
|
|
/// ::= 'arm_aapcs_vfpcc'
|
|
/// ::= 'msp430_intrcc'
|
|
/// ::= 'avr_intrcc'
|
|
/// ::= 'avr_signalcc'
|
|
/// ::= 'ptx_kernel'
|
|
/// ::= 'ptx_device'
|
|
/// ::= 'spir_func'
|
|
/// ::= 'spir_kernel'
|
|
/// ::= 'x86_64_sysvcc'
|
|
/// ::= 'x86_64_win64cc'
|
|
/// ::= 'webkit_jscc'
|
|
/// ::= 'anyregcc'
|
|
/// ::= 'preserve_mostcc'
|
|
/// ::= 'preserve_allcc'
|
|
/// ::= 'ghccc'
|
|
/// ::= 'swiftcc'
|
|
/// ::= 'x86_intrcc'
|
|
/// ::= 'hhvmcc'
|
|
/// ::= 'hhvm_ccc'
|
|
/// ::= 'cxx_fast_tlscc'
|
|
/// ::= 'amdgpu_vs'
|
|
/// ::= 'amdgpu_tcs'
|
|
/// ::= 'amdgpu_tes'
|
|
/// ::= 'amdgpu_gs'
|
|
/// ::= 'amdgpu_ps'
|
|
/// ::= 'amdgpu_cs'
|
|
/// ::= 'amdgpu_kernel'
|
|
/// ::= 'cc' UINT
|
|
///
|
|
bool LLParser::ParseOptionalCallingConv(unsigned &CC) {
|
|
switch (Lex.getKind()) {
|
|
default: CC = CallingConv::C; return false;
|
|
case lltok::kw_ccc: CC = CallingConv::C; break;
|
|
case lltok::kw_fastcc: CC = CallingConv::Fast; break;
|
|
case lltok::kw_coldcc: CC = CallingConv::Cold; break;
|
|
case lltok::kw_x86_stdcallcc: CC = CallingConv::X86_StdCall; break;
|
|
case lltok::kw_x86_fastcallcc: CC = CallingConv::X86_FastCall; break;
|
|
case lltok::kw_x86_regcallcc: CC = CallingConv::X86_RegCall; break;
|
|
case lltok::kw_x86_thiscallcc: CC = CallingConv::X86_ThisCall; break;
|
|
case lltok::kw_x86_vectorcallcc:CC = CallingConv::X86_VectorCall; break;
|
|
case lltok::kw_arm_apcscc: CC = CallingConv::ARM_APCS; break;
|
|
case lltok::kw_arm_aapcscc: CC = CallingConv::ARM_AAPCS; break;
|
|
case lltok::kw_arm_aapcs_vfpcc:CC = CallingConv::ARM_AAPCS_VFP; break;
|
|
case lltok::kw_msp430_intrcc: CC = CallingConv::MSP430_INTR; break;
|
|
case lltok::kw_avr_intrcc: CC = CallingConv::AVR_INTR; break;
|
|
case lltok::kw_avr_signalcc: CC = CallingConv::AVR_SIGNAL; break;
|
|
case lltok::kw_ptx_kernel: CC = CallingConv::PTX_Kernel; break;
|
|
case lltok::kw_ptx_device: CC = CallingConv::PTX_Device; break;
|
|
case lltok::kw_spir_kernel: CC = CallingConv::SPIR_KERNEL; break;
|
|
case lltok::kw_spir_func: CC = CallingConv::SPIR_FUNC; break;
|
|
case lltok::kw_intel_ocl_bicc: CC = CallingConv::Intel_OCL_BI; break;
|
|
case lltok::kw_x86_64_sysvcc: CC = CallingConv::X86_64_SysV; break;
|
|
case lltok::kw_x86_64_win64cc: CC = CallingConv::X86_64_Win64; break;
|
|
case lltok::kw_webkit_jscc: CC = CallingConv::WebKit_JS; break;
|
|
case lltok::kw_anyregcc: CC = CallingConv::AnyReg; break;
|
|
case lltok::kw_preserve_mostcc:CC = CallingConv::PreserveMost; break;
|
|
case lltok::kw_preserve_allcc: CC = CallingConv::PreserveAll; break;
|
|
case lltok::kw_ghccc: CC = CallingConv::GHC; break;
|
|
case lltok::kw_swiftcc: CC = CallingConv::Swift; break;
|
|
case lltok::kw_x86_intrcc: CC = CallingConv::X86_INTR; break;
|
|
case lltok::kw_hhvmcc: CC = CallingConv::HHVM; break;
|
|
case lltok::kw_hhvm_ccc: CC = CallingConv::HHVM_C; break;
|
|
case lltok::kw_cxx_fast_tlscc: CC = CallingConv::CXX_FAST_TLS; break;
|
|
case lltok::kw_amdgpu_vs: CC = CallingConv::AMDGPU_VS; break;
|
|
case lltok::kw_amdgpu_gs: CC = CallingConv::AMDGPU_GS; break;
|
|
case lltok::kw_amdgpu_ps: CC = CallingConv::AMDGPU_PS; break;
|
|
case lltok::kw_amdgpu_cs: CC = CallingConv::AMDGPU_CS; break;
|
|
case lltok::kw_amdgpu_kernel: CC = CallingConv::AMDGPU_KERNEL; break;
|
|
case lltok::kw_cc: {
|
|
Lex.Lex();
|
|
return ParseUInt32(CC);
|
|
}
|
|
}
|
|
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
/// ParseMetadataAttachment
|
|
/// ::= !dbg !42
|
|
bool LLParser::ParseMetadataAttachment(unsigned &Kind, MDNode *&MD) {
|
|
assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata attachment");
|
|
|
|
std::string Name = Lex.getStrVal();
|
|
Kind = M->getMDKindID(Name);
|
|
Lex.Lex();
|
|
|
|
return ParseMDNode(MD);
|
|
}
|
|
|
|
/// ParseInstructionMetadata
|
|
/// ::= !dbg !42 (',' !dbg !57)*
|
|
bool LLParser::ParseInstructionMetadata(Instruction &Inst) {
|
|
do {
|
|
if (Lex.getKind() != lltok::MetadataVar)
|
|
return TokError("expected metadata after comma");
|
|
|
|
unsigned MDK;
|
|
MDNode *N;
|
|
if (ParseMetadataAttachment(MDK, N))
|
|
return true;
|
|
|
|
Inst.setMetadata(MDK, N);
|
|
if (MDK == LLVMContext::MD_tbaa)
|
|
InstsWithTBAATag.push_back(&Inst);
|
|
|
|
// If this is the end of the list, we're done.
|
|
} while (EatIfPresent(lltok::comma));
|
|
return false;
|
|
}
|
|
|
|
/// ParseGlobalObjectMetadataAttachment
|
|
/// ::= !dbg !57
|
|
bool LLParser::ParseGlobalObjectMetadataAttachment(GlobalObject &GO) {
|
|
unsigned MDK;
|
|
MDNode *N;
|
|
if (ParseMetadataAttachment(MDK, N))
|
|
return true;
|
|
|
|
GO.addMetadata(MDK, *N);
|
|
return false;
|
|
}
|
|
|
|
/// ParseOptionalFunctionMetadata
|
|
/// ::= (!dbg !57)*
|
|
bool LLParser::ParseOptionalFunctionMetadata(Function &F) {
|
|
while (Lex.getKind() == lltok::MetadataVar)
|
|
if (ParseGlobalObjectMetadataAttachment(F))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
/// ParseOptionalAlignment
|
|
/// ::= /* empty */
|
|
/// ::= 'align' 4
|
|
bool LLParser::ParseOptionalAlignment(unsigned &Alignment) {
|
|
Alignment = 0;
|
|
if (!EatIfPresent(lltok::kw_align))
|
|
return false;
|
|
LocTy AlignLoc = Lex.getLoc();
|
|
if (ParseUInt32(Alignment)) return true;
|
|
if (!isPowerOf2_32(Alignment))
|
|
return Error(AlignLoc, "alignment is not a power of two");
|
|
if (Alignment > Value::MaximumAlignment)
|
|
return Error(AlignLoc, "huge alignments are not supported yet");
|
|
return false;
|
|
}
|
|
|
|
/// ParseOptionalDerefAttrBytes
|
|
/// ::= /* empty */
|
|
/// ::= AttrKind '(' 4 ')'
|
|
///
|
|
/// where AttrKind is either 'dereferenceable' or 'dereferenceable_or_null'.
|
|
bool LLParser::ParseOptionalDerefAttrBytes(lltok::Kind AttrKind,
|
|
uint64_t &Bytes) {
|
|
assert((AttrKind == lltok::kw_dereferenceable ||
|
|
AttrKind == lltok::kw_dereferenceable_or_null) &&
|
|
"contract!");
|
|
|
|
Bytes = 0;
|
|
if (!EatIfPresent(AttrKind))
|
|
return false;
|
|
LocTy ParenLoc = Lex.getLoc();
|
|
if (!EatIfPresent(lltok::lparen))
|
|
return Error(ParenLoc, "expected '('");
|
|
LocTy DerefLoc = Lex.getLoc();
|
|
if (ParseUInt64(Bytes)) return true;
|
|
ParenLoc = Lex.getLoc();
|
|
if (!EatIfPresent(lltok::rparen))
|
|
return Error(ParenLoc, "expected ')'");
|
|
if (!Bytes)
|
|
return Error(DerefLoc, "dereferenceable bytes must be non-zero");
|
|
return false;
|
|
}
|
|
|
|
/// ParseOptionalCommaAlign
|
|
/// ::=
|
|
/// ::= ',' align 4
|
|
///
|
|
/// This returns with AteExtraComma set to true if it ate an excess comma at the
|
|
/// end.
|
|
bool LLParser::ParseOptionalCommaAlign(unsigned &Alignment,
|
|
bool &AteExtraComma) {
|
|
AteExtraComma = false;
|
|
while (EatIfPresent(lltok::comma)) {
|
|
// Metadata at the end is an early exit.
|
|
if (Lex.getKind() == lltok::MetadataVar) {
|
|
AteExtraComma = true;
|
|
return false;
|
|
}
|
|
|
|
if (Lex.getKind() != lltok::kw_align)
|
|
return Error(Lex.getLoc(), "expected metadata or 'align'");
|
|
|
|
if (ParseOptionalAlignment(Alignment)) return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool LLParser::parseAllocSizeArguments(unsigned &BaseSizeArg,
|
|
Optional<unsigned> &HowManyArg) {
|
|
Lex.Lex();
|
|
|
|
auto StartParen = Lex.getLoc();
|
|
if (!EatIfPresent(lltok::lparen))
|
|
return Error(StartParen, "expected '('");
|
|
|
|
if (ParseUInt32(BaseSizeArg))
|
|
return true;
|
|
|
|
if (EatIfPresent(lltok::comma)) {
|
|
auto HowManyAt = Lex.getLoc();
|
|
unsigned HowMany;
|
|
if (ParseUInt32(HowMany))
|
|
return true;
|
|
if (HowMany == BaseSizeArg)
|
|
return Error(HowManyAt,
|
|
"'allocsize' indices can't refer to the same parameter");
|
|
HowManyArg = HowMany;
|
|
} else
|
|
HowManyArg = None;
|
|
|
|
auto EndParen = Lex.getLoc();
|
|
if (!EatIfPresent(lltok::rparen))
|
|
return Error(EndParen, "expected ')'");
|
|
return false;
|
|
}
|
|
|
|
/// ParseScopeAndOrdering
|
|
/// if isAtomic: ::= 'singlethread'? AtomicOrdering
|
|
/// else: ::=
|
|
///
|
|
/// This sets Scope and Ordering to the parsed values.
|
|
bool LLParser::ParseScopeAndOrdering(bool isAtomic, SynchronizationScope &Scope,
|
|
AtomicOrdering &Ordering) {
|
|
if (!isAtomic)
|
|
return false;
|
|
|
|
Scope = CrossThread;
|
|
if (EatIfPresent(lltok::kw_singlethread))
|
|
Scope = SingleThread;
|
|
|
|
return ParseOrdering(Ordering);
|
|
}
|
|
|
|
/// ParseOrdering
|
|
/// ::= AtomicOrdering
|
|
///
|
|
/// This sets Ordering to the parsed value.
|
|
bool LLParser::ParseOrdering(AtomicOrdering &Ordering) {
|
|
switch (Lex.getKind()) {
|
|
default: return TokError("Expected ordering on atomic instruction");
|
|
case lltok::kw_unordered: Ordering = AtomicOrdering::Unordered; break;
|
|
case lltok::kw_monotonic: Ordering = AtomicOrdering::Monotonic; break;
|
|
// Not specified yet:
|
|
// case lltok::kw_consume: Ordering = AtomicOrdering::Consume; break;
|
|
case lltok::kw_acquire: Ordering = AtomicOrdering::Acquire; break;
|
|
case lltok::kw_release: Ordering = AtomicOrdering::Release; break;
|
|
case lltok::kw_acq_rel: Ordering = AtomicOrdering::AcquireRelease; break;
|
|
case lltok::kw_seq_cst:
|
|
Ordering = AtomicOrdering::SequentiallyConsistent;
|
|
break;
|
|
}
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
/// ParseOptionalStackAlignment
|
|
/// ::= /* empty */
|
|
/// ::= 'alignstack' '(' 4 ')'
|
|
bool LLParser::ParseOptionalStackAlignment(unsigned &Alignment) {
|
|
Alignment = 0;
|
|
if (!EatIfPresent(lltok::kw_alignstack))
|
|
return false;
|
|
LocTy ParenLoc = Lex.getLoc();
|
|
if (!EatIfPresent(lltok::lparen))
|
|
return Error(ParenLoc, "expected '('");
|
|
LocTy AlignLoc = Lex.getLoc();
|
|
if (ParseUInt32(Alignment)) return true;
|
|
ParenLoc = Lex.getLoc();
|
|
if (!EatIfPresent(lltok::rparen))
|
|
return Error(ParenLoc, "expected ')'");
|
|
if (!isPowerOf2_32(Alignment))
|
|
return Error(AlignLoc, "stack alignment is not a power of two");
|
|
return false;
|
|
}
|
|
|
|
/// ParseIndexList - This parses the index list for an insert/extractvalue
|
|
/// instruction. This sets AteExtraComma in the case where we eat an extra
|
|
/// comma at the end of the line and find that it is followed by metadata.
|
|
/// Clients that don't allow metadata can call the version of this function that
|
|
/// only takes one argument.
|
|
///
|
|
/// ParseIndexList
|
|
/// ::= (',' uint32)+
|
|
///
|
|
bool LLParser::ParseIndexList(SmallVectorImpl<unsigned> &Indices,
|
|
bool &AteExtraComma) {
|
|
AteExtraComma = false;
|
|
|
|
if (Lex.getKind() != lltok::comma)
|
|
return TokError("expected ',' as start of index list");
|
|
|
|
while (EatIfPresent(lltok::comma)) {
|
|
if (Lex.getKind() == lltok::MetadataVar) {
|
|
if (Indices.empty()) return TokError("expected index");
|
|
AteExtraComma = true;
|
|
return false;
|
|
}
|
|
unsigned Idx = 0;
|
|
if (ParseUInt32(Idx)) return true;
|
|
Indices.push_back(Idx);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Type Parsing.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// ParseType - Parse a type.
|
|
bool LLParser::ParseType(Type *&Result, const Twine &Msg, bool AllowVoid) {
|
|
SMLoc TypeLoc = Lex.getLoc();
|
|
switch (Lex.getKind()) {
|
|
default:
|
|
return TokError(Msg);
|
|
case lltok::Type:
|
|
// Type ::= 'float' | 'void' (etc)
|
|
Result = Lex.getTyVal();
|
|
Lex.Lex();
|
|
break;
|
|
case lltok::lbrace:
|
|
// Type ::= StructType
|
|
if (ParseAnonStructType(Result, false))
|
|
return true;
|
|
break;
|
|
case lltok::lsquare:
|
|
// Type ::= '[' ... ']'
|
|
Lex.Lex(); // eat the lsquare.
|
|
if (ParseArrayVectorType(Result, false))
|
|
return true;
|
|
break;
|
|
case lltok::less: // Either vector or packed struct.
|
|
// Type ::= '<' ... '>'
|
|
Lex.Lex();
|
|
if (Lex.getKind() == lltok::lbrace) {
|
|
if (ParseAnonStructType(Result, true) ||
|
|
ParseToken(lltok::greater, "expected '>' at end of packed struct"))
|
|
return true;
|
|
} else if (ParseArrayVectorType(Result, true))
|
|
return true;
|
|
break;
|
|
case lltok::LocalVar: {
|
|
// Type ::= %foo
|
|
std::pair<Type*, LocTy> &Entry = NamedTypes[Lex.getStrVal()];
|
|
|
|
// If the type hasn't been defined yet, create a forward definition and
|
|
// remember where that forward def'n was seen (in case it never is defined).
|
|
if (!Entry.first) {
|
|
Entry.first = StructType::create(Context, Lex.getStrVal());
|
|
Entry.second = Lex.getLoc();
|
|
}
|
|
Result = Entry.first;
|
|
Lex.Lex();
|
|
break;
|
|
}
|
|
|
|
case lltok::LocalVarID: {
|
|
// Type ::= %4
|
|
std::pair<Type*, LocTy> &Entry = NumberedTypes[Lex.getUIntVal()];
|
|
|
|
// If the type hasn't been defined yet, create a forward definition and
|
|
// remember where that forward def'n was seen (in case it never is defined).
|
|
if (!Entry.first) {
|
|
Entry.first = StructType::create(Context);
|
|
Entry.second = Lex.getLoc();
|
|
}
|
|
Result = Entry.first;
|
|
Lex.Lex();
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Parse the type suffixes.
|
|
while (true) {
|
|
switch (Lex.getKind()) {
|
|
// End of type.
|
|
default:
|
|
if (!AllowVoid && Result->isVoidTy())
|
|
return Error(TypeLoc, "void type only allowed for function results");
|
|
return false;
|
|
|
|
// Type ::= Type '*'
|
|
case lltok::star:
|
|
if (Result->isLabelTy())
|
|
return TokError("basic block pointers are invalid");
|
|
if (Result->isVoidTy())
|
|
return TokError("pointers to void are invalid - use i8* instead");
|
|
if (!PointerType::isValidElementType(Result))
|
|
return TokError("pointer to this type is invalid");
|
|
Result = PointerType::getUnqual(Result);
|
|
Lex.Lex();
|
|
break;
|
|
|
|
// Type ::= Type 'addrspace' '(' uint32 ')' '*'
|
|
case lltok::kw_addrspace: {
|
|
if (Result->isLabelTy())
|
|
return TokError("basic block pointers are invalid");
|
|
if (Result->isVoidTy())
|
|
return TokError("pointers to void are invalid; use i8* instead");
|
|
if (!PointerType::isValidElementType(Result))
|
|
return TokError("pointer to this type is invalid");
|
|
unsigned AddrSpace;
|
|
if (ParseOptionalAddrSpace(AddrSpace) ||
|
|
ParseToken(lltok::star, "expected '*' in address space"))
|
|
return true;
|
|
|
|
Result = PointerType::get(Result, AddrSpace);
|
|
break;
|
|
}
|
|
|
|
/// Types '(' ArgTypeListI ')' OptFuncAttrs
|
|
case lltok::lparen:
|
|
if (ParseFunctionType(Result))
|
|
return true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// ParseParameterList
|
|
/// ::= '(' ')'
|
|
/// ::= '(' Arg (',' Arg)* ')'
|
|
/// Arg
|
|
/// ::= Type OptionalAttributes Value OptionalAttributes
|
|
bool LLParser::ParseParameterList(SmallVectorImpl<ParamInfo> &ArgList,
|
|
PerFunctionState &PFS, bool IsMustTailCall,
|
|
bool InVarArgsFunc) {
|
|
if (ParseToken(lltok::lparen, "expected '(' in call"))
|
|
return true;
|
|
|
|
unsigned AttrIndex = 1;
|
|
while (Lex.getKind() != lltok::rparen) {
|
|
// If this isn't the first argument, we need a comma.
|
|
if (!ArgList.empty() &&
|
|
ParseToken(lltok::comma, "expected ',' in argument list"))
|
|
return true;
|
|
|
|
// Parse an ellipsis if this is a musttail call in a variadic function.
|
|
if (Lex.getKind() == lltok::dotdotdot) {
|
|
const char *Msg = "unexpected ellipsis in argument list for ";
|
|
if (!IsMustTailCall)
|
|
return TokError(Twine(Msg) + "non-musttail call");
|
|
if (!InVarArgsFunc)
|
|
return TokError(Twine(Msg) + "musttail call in non-varargs function");
|
|
Lex.Lex(); // Lex the '...', it is purely for readability.
|
|
return ParseToken(lltok::rparen, "expected ')' at end of argument list");
|
|
}
|
|
|
|
// Parse the argument.
|
|
LocTy ArgLoc;
|
|
Type *ArgTy = nullptr;
|
|
AttrBuilder ArgAttrs;
|
|
Value *V;
|
|
if (ParseType(ArgTy, ArgLoc))
|
|
return true;
|
|
|
|
if (ArgTy->isMetadataTy()) {
|
|
if (ParseMetadataAsValue(V, PFS))
|
|
return true;
|
|
} else {
|
|
// Otherwise, handle normal operands.
|
|
if (ParseOptionalParamAttrs(ArgAttrs) || ParseValue(ArgTy, V, PFS))
|
|
return true;
|
|
}
|
|
ArgList.push_back(ParamInfo(ArgLoc, V, AttributeSet::get(V->getContext(),
|
|
AttrIndex++,
|
|
ArgAttrs)));
|
|
}
|
|
|
|
if (IsMustTailCall && InVarArgsFunc)
|
|
return TokError("expected '...' at end of argument list for musttail call "
|
|
"in varargs function");
|
|
|
|
Lex.Lex(); // Lex the ')'.
|
|
return false;
|
|
}
|
|
|
|
/// ParseOptionalOperandBundles
|
|
/// ::= /*empty*/
|
|
/// ::= '[' OperandBundle [, OperandBundle ]* ']'
|
|
///
|
|
/// OperandBundle
|
|
/// ::= bundle-tag '(' ')'
|
|
/// ::= bundle-tag '(' Type Value [, Type Value ]* ')'
|
|
///
|
|
/// bundle-tag ::= String Constant
|
|
bool LLParser::ParseOptionalOperandBundles(
|
|
SmallVectorImpl<OperandBundleDef> &BundleList, PerFunctionState &PFS) {
|
|
LocTy BeginLoc = Lex.getLoc();
|
|
if (!EatIfPresent(lltok::lsquare))
|
|
return false;
|
|
|
|
while (Lex.getKind() != lltok::rsquare) {
|
|
// If this isn't the first operand bundle, we need a comma.
|
|
if (!BundleList.empty() &&
|
|
ParseToken(lltok::comma, "expected ',' in input list"))
|
|
return true;
|
|
|
|
std::string Tag;
|
|
if (ParseStringConstant(Tag))
|
|
return true;
|
|
|
|
if (ParseToken(lltok::lparen, "expected '(' in operand bundle"))
|
|
return true;
|
|
|
|
std::vector<Value *> Inputs;
|
|
while (Lex.getKind() != lltok::rparen) {
|
|
// If this isn't the first input, we need a comma.
|
|
if (!Inputs.empty() &&
|
|
ParseToken(lltok::comma, "expected ',' in input list"))
|
|
return true;
|
|
|
|
Type *Ty = nullptr;
|
|
Value *Input = nullptr;
|
|
if (ParseType(Ty) || ParseValue(Ty, Input, PFS))
|
|
return true;
|
|
Inputs.push_back(Input);
|
|
}
|
|
|
|
BundleList.emplace_back(std::move(Tag), std::move(Inputs));
|
|
|
|
Lex.Lex(); // Lex the ')'.
|
|
}
|
|
|
|
if (BundleList.empty())
|
|
return Error(BeginLoc, "operand bundle set must not be empty");
|
|
|
|
Lex.Lex(); // Lex the ']'.
|
|
return false;
|
|
}
|
|
|
|
/// ParseArgumentList - Parse the argument list for a function type or function
|
|
/// prototype.
|
|
/// ::= '(' ArgTypeListI ')'
|
|
/// ArgTypeListI
|
|
/// ::= /*empty*/
|
|
/// ::= '...'
|
|
/// ::= ArgTypeList ',' '...'
|
|
/// ::= ArgType (',' ArgType)*
|
|
///
|
|
bool LLParser::ParseArgumentList(SmallVectorImpl<ArgInfo> &ArgList,
|
|
bool &isVarArg){
|
|
isVarArg = false;
|
|
assert(Lex.getKind() == lltok::lparen);
|
|
Lex.Lex(); // eat the (.
|
|
|
|
if (Lex.getKind() == lltok::rparen) {
|
|
// empty
|
|
} else if (Lex.getKind() == lltok::dotdotdot) {
|
|
isVarArg = true;
|
|
Lex.Lex();
|
|
} else {
|
|
LocTy TypeLoc = Lex.getLoc();
|
|
Type *ArgTy = nullptr;
|
|
AttrBuilder Attrs;
|
|
std::string Name;
|
|
|
|
if (ParseType(ArgTy) ||
|
|
ParseOptionalParamAttrs(Attrs)) return true;
|
|
|
|
if (ArgTy->isVoidTy())
|
|
return Error(TypeLoc, "argument can not have void type");
|
|
|
|
if (Lex.getKind() == lltok::LocalVar) {
|
|
Name = Lex.getStrVal();
|
|
Lex.Lex();
|
|
}
|
|
|
|
if (!FunctionType::isValidArgumentType(ArgTy))
|
|
return Error(TypeLoc, "invalid type for function argument");
|
|
|
|
unsigned AttrIndex = 1;
|
|
ArgList.emplace_back(TypeLoc, ArgTy, AttributeSet::get(ArgTy->getContext(),
|
|
AttrIndex++, Attrs),
|
|
std::move(Name));
|
|
|
|
while (EatIfPresent(lltok::comma)) {
|
|
// Handle ... at end of arg list.
|
|
if (EatIfPresent(lltok::dotdotdot)) {
|
|
isVarArg = true;
|
|
break;
|
|
}
|
|
|
|
// Otherwise must be an argument type.
|
|
TypeLoc = Lex.getLoc();
|
|
if (ParseType(ArgTy) || ParseOptionalParamAttrs(Attrs)) return true;
|
|
|
|
if (ArgTy->isVoidTy())
|
|
return Error(TypeLoc, "argument can not have void type");
|
|
|
|
if (Lex.getKind() == lltok::LocalVar) {
|
|
Name = Lex.getStrVal();
|
|
Lex.Lex();
|
|
} else {
|
|
Name = "";
|
|
}
|
|
|
|
if (!ArgTy->isFirstClassType())
|
|
return Error(TypeLoc, "invalid type for function argument");
|
|
|
|
ArgList.emplace_back(
|
|
TypeLoc, ArgTy,
|
|
AttributeSet::get(ArgTy->getContext(), AttrIndex++, Attrs),
|
|
std::move(Name));
|
|
}
|
|
}
|
|
|
|
return ParseToken(lltok::rparen, "expected ')' at end of argument list");
|
|
}
|
|
|
|
/// ParseFunctionType
|
|
/// ::= Type ArgumentList OptionalAttrs
|
|
bool LLParser::ParseFunctionType(Type *&Result) {
|
|
assert(Lex.getKind() == lltok::lparen);
|
|
|
|
if (!FunctionType::isValidReturnType(Result))
|
|
return TokError("invalid function return type");
|
|
|
|
SmallVector<ArgInfo, 8> ArgList;
|
|
bool isVarArg;
|
|
if (ParseArgumentList(ArgList, isVarArg))
|
|
return true;
|
|
|
|
// Reject names on the arguments lists.
|
|
for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
|
|
if (!ArgList[i].Name.empty())
|
|
return Error(ArgList[i].Loc, "argument name invalid in function type");
|
|
if (ArgList[i].Attrs.hasAttributes(i + 1))
|
|
return Error(ArgList[i].Loc,
|
|
"argument attributes invalid in function type");
|
|
}
|
|
|
|
SmallVector<Type*, 16> ArgListTy;
|
|
for (unsigned i = 0, e = ArgList.size(); i != e; ++i)
|
|
ArgListTy.push_back(ArgList[i].Ty);
|
|
|
|
Result = FunctionType::get(Result, ArgListTy, isVarArg);
|
|
return false;
|
|
}
|
|
|
|
/// ParseAnonStructType - Parse an anonymous struct type, which is inlined into
|
|
/// other structs.
|
|
bool LLParser::ParseAnonStructType(Type *&Result, bool Packed) {
|
|
SmallVector<Type*, 8> Elts;
|
|
if (ParseStructBody(Elts)) return true;
|
|
|
|
Result = StructType::get(Context, Elts, Packed);
|
|
return false;
|
|
}
|
|
|
|
/// ParseStructDefinition - Parse a struct in a 'type' definition.
|
|
bool LLParser::ParseStructDefinition(SMLoc TypeLoc, StringRef Name,
|
|
std::pair<Type*, LocTy> &Entry,
|
|
Type *&ResultTy) {
|
|
// If the type was already defined, diagnose the redefinition.
|
|
if (Entry.first && !Entry.second.isValid())
|
|
return Error(TypeLoc, "redefinition of type");
|
|
|
|
// If we have opaque, just return without filling in the definition for the
|
|
// struct. This counts as a definition as far as the .ll file goes.
|
|
if (EatIfPresent(lltok::kw_opaque)) {
|
|
// This type is being defined, so clear the location to indicate this.
|
|
Entry.second = SMLoc();
|
|
|
|
// If this type number has never been uttered, create it.
|
|
if (!Entry.first)
|
|
Entry.first = StructType::create(Context, Name);
|
|
ResultTy = Entry.first;
|
|
return false;
|
|
}
|
|
|
|
// If the type starts with '<', then it is either a packed struct or a vector.
|
|
bool isPacked = EatIfPresent(lltok::less);
|
|
|
|
// If we don't have a struct, then we have a random type alias, which we
|
|
// accept for compatibility with old files. These types are not allowed to be
|
|
// forward referenced and not allowed to be recursive.
|
|
if (Lex.getKind() != lltok::lbrace) {
|
|
if (Entry.first)
|
|
return Error(TypeLoc, "forward references to non-struct type");
|
|
|
|
ResultTy = nullptr;
|
|
if (isPacked)
|
|
return ParseArrayVectorType(ResultTy, true);
|
|
return ParseType(ResultTy);
|
|
}
|
|
|
|
// This type is being defined, so clear the location to indicate this.
|
|
Entry.second = SMLoc();
|
|
|
|
// If this type number has never been uttered, create it.
|
|
if (!Entry.first)
|
|
Entry.first = StructType::create(Context, Name);
|
|
|
|
StructType *STy = cast<StructType>(Entry.first);
|
|
|
|
SmallVector<Type*, 8> Body;
|
|
if (ParseStructBody(Body) ||
|
|
(isPacked && ParseToken(lltok::greater, "expected '>' in packed struct")))
|
|
return true;
|
|
|
|
STy->setBody(Body, isPacked);
|
|
ResultTy = STy;
|
|
return false;
|
|
}
|
|
|
|
/// ParseStructType: Handles packed and unpacked types. </> parsed elsewhere.
|
|
/// StructType
|
|
/// ::= '{' '}'
|
|
/// ::= '{' Type (',' Type)* '}'
|
|
/// ::= '<' '{' '}' '>'
|
|
/// ::= '<' '{' Type (',' Type)* '}' '>'
|
|
bool LLParser::ParseStructBody(SmallVectorImpl<Type*> &Body) {
|
|
assert(Lex.getKind() == lltok::lbrace);
|
|
Lex.Lex(); // Consume the '{'
|
|
|
|
// Handle the empty struct.
|
|
if (EatIfPresent(lltok::rbrace))
|
|
return false;
|
|
|
|
LocTy EltTyLoc = Lex.getLoc();
|
|
Type *Ty = nullptr;
|
|
if (ParseType(Ty)) return true;
|
|
Body.push_back(Ty);
|
|
|
|
if (!StructType::isValidElementType(Ty))
|
|
return Error(EltTyLoc, "invalid element type for struct");
|
|
|
|
while (EatIfPresent(lltok::comma)) {
|
|
EltTyLoc = Lex.getLoc();
|
|
if (ParseType(Ty)) return true;
|
|
|
|
if (!StructType::isValidElementType(Ty))
|
|
return Error(EltTyLoc, "invalid element type for struct");
|
|
|
|
Body.push_back(Ty);
|
|
}
|
|
|
|
return ParseToken(lltok::rbrace, "expected '}' at end of struct");
|
|
}
|
|
|
|
/// ParseArrayVectorType - Parse an array or vector type, assuming the first
|
|
/// token has already been consumed.
|
|
/// Type
|
|
/// ::= '[' APSINTVAL 'x' Types ']'
|
|
/// ::= '<' APSINTVAL 'x' Types '>'
|
|
bool LLParser::ParseArrayVectorType(Type *&Result, bool isVector) {
|
|
if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned() ||
|
|
Lex.getAPSIntVal().getBitWidth() > 64)
|
|
return TokError("expected number in address space");
|
|
|
|
LocTy SizeLoc = Lex.getLoc();
|
|
uint64_t Size = Lex.getAPSIntVal().getZExtValue();
|
|
Lex.Lex();
|
|
|
|
if (ParseToken(lltok::kw_x, "expected 'x' after element count"))
|
|
return true;
|
|
|
|
LocTy TypeLoc = Lex.getLoc();
|
|
Type *EltTy = nullptr;
|
|
if (ParseType(EltTy)) return true;
|
|
|
|
if (ParseToken(isVector ? lltok::greater : lltok::rsquare,
|
|
"expected end of sequential type"))
|
|
return true;
|
|
|
|
if (isVector) {
|
|
if (Size == 0)
|
|
return Error(SizeLoc, "zero element vector is illegal");
|
|
if ((unsigned)Size != Size)
|
|
return Error(SizeLoc, "size too large for vector");
|
|
if (!VectorType::isValidElementType(EltTy))
|
|
return Error(TypeLoc, "invalid vector element type");
|
|
Result = VectorType::get(EltTy, unsigned(Size));
|
|
} else {
|
|
if (!ArrayType::isValidElementType(EltTy))
|
|
return Error(TypeLoc, "invalid array element type");
|
|
Result = ArrayType::get(EltTy, Size);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Function Semantic Analysis.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
LLParser::PerFunctionState::PerFunctionState(LLParser &p, Function &f,
|
|
int functionNumber)
|
|
: P(p), F(f), FunctionNumber(functionNumber) {
|
|
|
|
// Insert unnamed arguments into the NumberedVals list.
|
|
for (Argument &A : F.args())
|
|
if (!A.hasName())
|
|
NumberedVals.push_back(&A);
|
|
}
|
|
|
|
LLParser::PerFunctionState::~PerFunctionState() {
|
|
// If there were any forward referenced non-basicblock values, delete them.
|
|
|
|
for (const auto &P : ForwardRefVals) {
|
|
if (isa<BasicBlock>(P.second.first))
|
|
continue;
|
|
P.second.first->replaceAllUsesWith(
|
|
UndefValue::get(P.second.first->getType()));
|
|
delete P.second.first;
|
|
}
|
|
|
|
for (const auto &P : ForwardRefValIDs) {
|
|
if (isa<BasicBlock>(P.second.first))
|
|
continue;
|
|
P.second.first->replaceAllUsesWith(
|
|
UndefValue::get(P.second.first->getType()));
|
|
delete P.second.first;
|
|
}
|
|
}
|
|
|
|
bool LLParser::PerFunctionState::FinishFunction() {
|
|
if (!ForwardRefVals.empty())
|
|
return P.Error(ForwardRefVals.begin()->second.second,
|
|
"use of undefined value '%" + ForwardRefVals.begin()->first +
|
|
"'");
|
|
if (!ForwardRefValIDs.empty())
|
|
return P.Error(ForwardRefValIDs.begin()->second.second,
|
|
"use of undefined value '%" +
|
|
Twine(ForwardRefValIDs.begin()->first) + "'");
|
|
return false;
|
|
}
|
|
|
|
/// GetVal - Get a value with the specified name or ID, creating a
|
|
/// forward reference record if needed. This can return null if the value
|
|
/// exists but does not have the right type.
|
|
Value *LLParser::PerFunctionState::GetVal(const std::string &Name, Type *Ty,
|
|
LocTy Loc) {
|
|
// Look this name up in the normal function symbol table.
|
|
Value *Val = F.getValueSymbolTable()->lookup(Name);
|
|
|
|
// If this is a forward reference for the value, see if we already created a
|
|
// forward ref record.
|
|
if (!Val) {
|
|
auto I = ForwardRefVals.find(Name);
|
|
if (I != ForwardRefVals.end())
|
|
Val = I->second.first;
|
|
}
|
|
|
|
// If we have the value in the symbol table or fwd-ref table, return it.
|
|
if (Val) {
|
|
if (Val->getType() == Ty) return Val;
|
|
if (Ty->isLabelTy())
|
|
P.Error(Loc, "'%" + Name + "' is not a basic block");
|
|
else
|
|
P.Error(Loc, "'%" + Name + "' defined with type '" +
|
|
getTypeString(Val->getType()) + "'");
|
|
return nullptr;
|
|
}
|
|
|
|
// Don't make placeholders with invalid type.
|
|
if (!Ty->isFirstClassType()) {
|
|
P.Error(Loc, "invalid use of a non-first-class type");
|
|
return nullptr;
|
|
}
|
|
|
|
// Otherwise, create a new forward reference for this value and remember it.
|
|
Value *FwdVal;
|
|
if (Ty->isLabelTy()) {
|
|
FwdVal = BasicBlock::Create(F.getContext(), Name, &F);
|
|
} else {
|
|
FwdVal = new Argument(Ty, Name);
|
|
}
|
|
|
|
ForwardRefVals[Name] = std::make_pair(FwdVal, Loc);
|
|
return FwdVal;
|
|
}
|
|
|
|
Value *LLParser::PerFunctionState::GetVal(unsigned ID, Type *Ty, LocTy Loc) {
|
|
// Look this name up in the normal function symbol table.
|
|
Value *Val = ID < NumberedVals.size() ? NumberedVals[ID] : nullptr;
|
|
|
|
// If this is a forward reference for the value, see if we already created a
|
|
// forward ref record.
|
|
if (!Val) {
|
|
auto I = ForwardRefValIDs.find(ID);
|
|
if (I != ForwardRefValIDs.end())
|
|
Val = I->second.first;
|
|
}
|
|
|
|
// If we have the value in the symbol table or fwd-ref table, return it.
|
|
if (Val) {
|
|
if (Val->getType() == Ty) return Val;
|
|
if (Ty->isLabelTy())
|
|
P.Error(Loc, "'%" + Twine(ID) + "' is not a basic block");
|
|
else
|
|
P.Error(Loc, "'%" + Twine(ID) + "' defined with type '" +
|
|
getTypeString(Val->getType()) + "'");
|
|
return nullptr;
|
|
}
|
|
|
|
if (!Ty->isFirstClassType()) {
|
|
P.Error(Loc, "invalid use of a non-first-class type");
|
|
return nullptr;
|
|
}
|
|
|
|
// Otherwise, create a new forward reference for this value and remember it.
|
|
Value *FwdVal;
|
|
if (Ty->isLabelTy()) {
|
|
FwdVal = BasicBlock::Create(F.getContext(), "", &F);
|
|
} else {
|
|
FwdVal = new Argument(Ty);
|
|
}
|
|
|
|
ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc);
|
|
return FwdVal;
|
|
}
|
|
|
|
/// SetInstName - After an instruction is parsed and inserted into its
|
|
/// basic block, this installs its name.
|
|
bool LLParser::PerFunctionState::SetInstName(int NameID,
|
|
const std::string &NameStr,
|
|
LocTy NameLoc, Instruction *Inst) {
|
|
// If this instruction has void type, it cannot have a name or ID specified.
|
|
if (Inst->getType()->isVoidTy()) {
|
|
if (NameID != -1 || !NameStr.empty())
|
|
return P.Error(NameLoc, "instructions returning void cannot have a name");
|
|
return false;
|
|
}
|
|
|
|
// If this was a numbered instruction, verify that the instruction is the
|
|
// expected value and resolve any forward references.
|
|
if (NameStr.empty()) {
|
|
// If neither a name nor an ID was specified, just use the next ID.
|
|
if (NameID == -1)
|
|
NameID = NumberedVals.size();
|
|
|
|
if (unsigned(NameID) != NumberedVals.size())
|
|
return P.Error(NameLoc, "instruction expected to be numbered '%" +
|
|
Twine(NumberedVals.size()) + "'");
|
|
|
|
auto FI = ForwardRefValIDs.find(NameID);
|
|
if (FI != ForwardRefValIDs.end()) {
|
|
Value *Sentinel = FI->second.first;
|
|
if (Sentinel->getType() != Inst->getType())
|
|
return P.Error(NameLoc, "instruction forward referenced with type '" +
|
|
getTypeString(FI->second.first->getType()) + "'");
|
|
|
|
Sentinel->replaceAllUsesWith(Inst);
|
|
delete Sentinel;
|
|
ForwardRefValIDs.erase(FI);
|
|
}
|
|
|
|
NumberedVals.push_back(Inst);
|
|
return false;
|
|
}
|
|
|
|
// Otherwise, the instruction had a name. Resolve forward refs and set it.
|
|
auto FI = ForwardRefVals.find(NameStr);
|
|
if (FI != ForwardRefVals.end()) {
|
|
Value *Sentinel = FI->second.first;
|
|
if (Sentinel->getType() != Inst->getType())
|
|
return P.Error(NameLoc, "instruction forward referenced with type '" +
|
|
getTypeString(FI->second.first->getType()) + "'");
|
|
|
|
Sentinel->replaceAllUsesWith(Inst);
|
|
delete Sentinel;
|
|
ForwardRefVals.erase(FI);
|
|
}
|
|
|
|
// Set the name on the instruction.
|
|
Inst->setName(NameStr);
|
|
|
|
if (Inst->getName() != NameStr)
|
|
return P.Error(NameLoc, "multiple definition of local value named '" +
|
|
NameStr + "'");
|
|
return false;
|
|
}
|
|
|
|
/// GetBB - Get a basic block with the specified name or ID, creating a
|
|
/// forward reference record if needed.
|
|
BasicBlock *LLParser::PerFunctionState::GetBB(const std::string &Name,
|
|
LocTy Loc) {
|
|
return dyn_cast_or_null<BasicBlock>(GetVal(Name,
|
|
Type::getLabelTy(F.getContext()), Loc));
|
|
}
|
|
|
|
BasicBlock *LLParser::PerFunctionState::GetBB(unsigned ID, LocTy Loc) {
|
|
return dyn_cast_or_null<BasicBlock>(GetVal(ID,
|
|
Type::getLabelTy(F.getContext()), Loc));
|
|
}
|
|
|
|
/// DefineBB - Define the specified basic block, which is either named or
|
|
/// unnamed. If there is an error, this returns null otherwise it returns
|
|
/// the block being defined.
|
|
BasicBlock *LLParser::PerFunctionState::DefineBB(const std::string &Name,
|
|
LocTy Loc) {
|
|
BasicBlock *BB;
|
|
if (Name.empty())
|
|
BB = GetBB(NumberedVals.size(), Loc);
|
|
else
|
|
BB = GetBB(Name, Loc);
|
|
if (!BB) return nullptr; // Already diagnosed error.
|
|
|
|
// Move the block to the end of the function. Forward ref'd blocks are
|
|
// inserted wherever they happen to be referenced.
|
|
F.getBasicBlockList().splice(F.end(), F.getBasicBlockList(), BB);
|
|
|
|
// Remove the block from forward ref sets.
|
|
if (Name.empty()) {
|
|
ForwardRefValIDs.erase(NumberedVals.size());
|
|
NumberedVals.push_back(BB);
|
|
} else {
|
|
// BB forward references are already in the function symbol table.
|
|
ForwardRefVals.erase(Name);
|
|
}
|
|
|
|
return BB;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Constants.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// ParseValID - Parse an abstract value that doesn't necessarily have a
|
|
/// type implied. For example, if we parse "4" we don't know what integer type
|
|
/// it has. The value will later be combined with its type and checked for
|
|
/// sanity. PFS is used to convert function-local operands of metadata (since
|
|
/// metadata operands are not just parsed here but also converted to values).
|
|
/// PFS can be null when we are not parsing metadata values inside a function.
|
|
bool LLParser::ParseValID(ValID &ID, PerFunctionState *PFS) {
|
|
ID.Loc = Lex.getLoc();
|
|
switch (Lex.getKind()) {
|
|
default: return TokError("expected value token");
|
|
case lltok::GlobalID: // @42
|
|
ID.UIntVal = Lex.getUIntVal();
|
|
ID.Kind = ValID::t_GlobalID;
|
|
break;
|
|
case lltok::GlobalVar: // @foo
|
|
ID.StrVal = Lex.getStrVal();
|
|
ID.Kind = ValID::t_GlobalName;
|
|
break;
|
|
case lltok::LocalVarID: // %42
|
|
ID.UIntVal = Lex.getUIntVal();
|
|
ID.Kind = ValID::t_LocalID;
|
|
break;
|
|
case lltok::LocalVar: // %foo
|
|
ID.StrVal = Lex.getStrVal();
|
|
ID.Kind = ValID::t_LocalName;
|
|
break;
|
|
case lltok::APSInt:
|
|
ID.APSIntVal = Lex.getAPSIntVal();
|
|
ID.Kind = ValID::t_APSInt;
|
|
break;
|
|
case lltok::APFloat:
|
|
ID.APFloatVal = Lex.getAPFloatVal();
|
|
ID.Kind = ValID::t_APFloat;
|
|
break;
|
|
case lltok::kw_true:
|
|
ID.ConstantVal = ConstantInt::getTrue(Context);
|
|
ID.Kind = ValID::t_Constant;
|
|
break;
|
|
case lltok::kw_false:
|
|
ID.ConstantVal = ConstantInt::getFalse(Context);
|
|
ID.Kind = ValID::t_Constant;
|
|
break;
|
|
case lltok::kw_null: ID.Kind = ValID::t_Null; break;
|
|
case lltok::kw_undef: ID.Kind = ValID::t_Undef; break;
|
|
case lltok::kw_zeroinitializer: ID.Kind = ValID::t_Zero; break;
|
|
case lltok::kw_none: ID.Kind = ValID::t_None; break;
|
|
|
|
case lltok::lbrace: {
|
|
// ValID ::= '{' ConstVector '}'
|
|
Lex.Lex();
|
|
SmallVector<Constant*, 16> Elts;
|
|
if (ParseGlobalValueVector(Elts) ||
|
|
ParseToken(lltok::rbrace, "expected end of struct constant"))
|
|
return true;
|
|
|
|
ID.ConstantStructElts = make_unique<Constant *[]>(Elts.size());
|
|
ID.UIntVal = Elts.size();
|
|
memcpy(ID.ConstantStructElts.get(), Elts.data(),
|
|
Elts.size() * sizeof(Elts[0]));
|
|
ID.Kind = ValID::t_ConstantStruct;
|
|
return false;
|
|
}
|
|
case lltok::less: {
|
|
// ValID ::= '<' ConstVector '>' --> Vector.
|
|
// ValID ::= '<' '{' ConstVector '}' '>' --> Packed Struct.
|
|
Lex.Lex();
|
|
bool isPackedStruct = EatIfPresent(lltok::lbrace);
|
|
|
|
SmallVector<Constant*, 16> Elts;
|
|
LocTy FirstEltLoc = Lex.getLoc();
|
|
if (ParseGlobalValueVector(Elts) ||
|
|
(isPackedStruct &&
|
|
ParseToken(lltok::rbrace, "expected end of packed struct")) ||
|
|
ParseToken(lltok::greater, "expected end of constant"))
|
|
return true;
|
|
|
|
if (isPackedStruct) {
|
|
ID.ConstantStructElts = make_unique<Constant *[]>(Elts.size());
|
|
memcpy(ID.ConstantStructElts.get(), Elts.data(),
|
|
Elts.size() * sizeof(Elts[0]));
|
|
ID.UIntVal = Elts.size();
|
|
ID.Kind = ValID::t_PackedConstantStruct;
|
|
return false;
|
|
}
|
|
|
|
if (Elts.empty())
|
|
return Error(ID.Loc, "constant vector must not be empty");
|
|
|
|
if (!Elts[0]->getType()->isIntegerTy() &&
|
|
!Elts[0]->getType()->isFloatingPointTy() &&
|
|
!Elts[0]->getType()->isPointerTy())
|
|
return Error(FirstEltLoc,
|
|
"vector elements must have integer, pointer or floating point type");
|
|
|
|
// Verify that all the vector elements have the same type.
|
|
for (unsigned i = 1, e = Elts.size(); i != e; ++i)
|
|
if (Elts[i]->getType() != Elts[0]->getType())
|
|
return Error(FirstEltLoc,
|
|
"vector element #" + Twine(i) +
|
|
" is not of type '" + getTypeString(Elts[0]->getType()));
|
|
|
|
ID.ConstantVal = ConstantVector::get(Elts);
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
}
|
|
case lltok::lsquare: { // Array Constant
|
|
Lex.Lex();
|
|
SmallVector<Constant*, 16> Elts;
|
|
LocTy FirstEltLoc = Lex.getLoc();
|
|
if (ParseGlobalValueVector(Elts) ||
|
|
ParseToken(lltok::rsquare, "expected end of array constant"))
|
|
return true;
|
|
|
|
// Handle empty element.
|
|
if (Elts.empty()) {
|
|
// Use undef instead of an array because it's inconvenient to determine
|
|
// the element type at this point, there being no elements to examine.
|
|
ID.Kind = ValID::t_EmptyArray;
|
|
return false;
|
|
}
|
|
|
|
if (!Elts[0]->getType()->isFirstClassType())
|
|
return Error(FirstEltLoc, "invalid array element type: " +
|
|
getTypeString(Elts[0]->getType()));
|
|
|
|
ArrayType *ATy = ArrayType::get(Elts[0]->getType(), Elts.size());
|
|
|
|
// Verify all elements are correct type!
|
|
for (unsigned i = 0, e = Elts.size(); i != e; ++i) {
|
|
if (Elts[i]->getType() != Elts[0]->getType())
|
|
return Error(FirstEltLoc,
|
|
"array element #" + Twine(i) +
|
|
" is not of type '" + getTypeString(Elts[0]->getType()));
|
|
}
|
|
|
|
ID.ConstantVal = ConstantArray::get(ATy, Elts);
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
}
|
|
case lltok::kw_c: // c "foo"
|
|
Lex.Lex();
|
|
ID.ConstantVal = ConstantDataArray::getString(Context, Lex.getStrVal(),
|
|
false);
|
|
if (ParseToken(lltok::StringConstant, "expected string")) return true;
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
|
|
case lltok::kw_asm: {
|
|
// ValID ::= 'asm' SideEffect? AlignStack? IntelDialect? STRINGCONSTANT ','
|
|
// STRINGCONSTANT
|
|
bool HasSideEffect, AlignStack, AsmDialect;
|
|
Lex.Lex();
|
|
if (ParseOptionalToken(lltok::kw_sideeffect, HasSideEffect) ||
|
|
ParseOptionalToken(lltok::kw_alignstack, AlignStack) ||
|
|
ParseOptionalToken(lltok::kw_inteldialect, AsmDialect) ||
|
|
ParseStringConstant(ID.StrVal) ||
|
|
ParseToken(lltok::comma, "expected comma in inline asm expression") ||
|
|
ParseToken(lltok::StringConstant, "expected constraint string"))
|
|
return true;
|
|
ID.StrVal2 = Lex.getStrVal();
|
|
ID.UIntVal = unsigned(HasSideEffect) | (unsigned(AlignStack)<<1) |
|
|
(unsigned(AsmDialect)<<2);
|
|
ID.Kind = ValID::t_InlineAsm;
|
|
return false;
|
|
}
|
|
|
|
case lltok::kw_blockaddress: {
|
|
// ValID ::= 'blockaddress' '(' @foo ',' %bar ')'
|
|
Lex.Lex();
|
|
|
|
ValID Fn, Label;
|
|
|
|
if (ParseToken(lltok::lparen, "expected '(' in block address expression") ||
|
|
ParseValID(Fn) ||
|
|
ParseToken(lltok::comma, "expected comma in block address expression")||
|
|
ParseValID(Label) ||
|
|
ParseToken(lltok::rparen, "expected ')' in block address expression"))
|
|
return true;
|
|
|
|
if (Fn.Kind != ValID::t_GlobalID && Fn.Kind != ValID::t_GlobalName)
|
|
return Error(Fn.Loc, "expected function name in blockaddress");
|
|
if (Label.Kind != ValID::t_LocalID && Label.Kind != ValID::t_LocalName)
|
|
return Error(Label.Loc, "expected basic block name in blockaddress");
|
|
|
|
// Try to find the function (but skip it if it's forward-referenced).
|
|
GlobalValue *GV = nullptr;
|
|
if (Fn.Kind == ValID::t_GlobalID) {
|
|
if (Fn.UIntVal < NumberedVals.size())
|
|
GV = NumberedVals[Fn.UIntVal];
|
|
} else if (!ForwardRefVals.count(Fn.StrVal)) {
|
|
GV = M->getNamedValue(Fn.StrVal);
|
|
}
|
|
Function *F = nullptr;
|
|
if (GV) {
|
|
// Confirm that it's actually a function with a definition.
|
|
if (!isa<Function>(GV))
|
|
return Error(Fn.Loc, "expected function name in blockaddress");
|
|
F = cast<Function>(GV);
|
|
if (F->isDeclaration())
|
|
return Error(Fn.Loc, "cannot take blockaddress inside a declaration");
|
|
}
|
|
|
|
if (!F) {
|
|
// Make a global variable as a placeholder for this reference.
|
|
GlobalValue *&FwdRef =
|
|
ForwardRefBlockAddresses.insert(std::make_pair(
|
|
std::move(Fn),
|
|
std::map<ValID, GlobalValue *>()))
|
|
.first->second.insert(std::make_pair(std::move(Label), nullptr))
|
|
.first->second;
|
|
if (!FwdRef)
|
|
FwdRef = new GlobalVariable(*M, Type::getInt8Ty(Context), false,
|
|
GlobalValue::InternalLinkage, nullptr, "");
|
|
ID.ConstantVal = FwdRef;
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
}
|
|
|
|
// We found the function; now find the basic block. Don't use PFS, since we
|
|
// might be inside a constant expression.
|
|
BasicBlock *BB;
|
|
if (BlockAddressPFS && F == &BlockAddressPFS->getFunction()) {
|
|
if (Label.Kind == ValID::t_LocalID)
|
|
BB = BlockAddressPFS->GetBB(Label.UIntVal, Label.Loc);
|
|
else
|
|
BB = BlockAddressPFS->GetBB(Label.StrVal, Label.Loc);
|
|
if (!BB)
|
|
return Error(Label.Loc, "referenced value is not a basic block");
|
|
} else {
|
|
if (Label.Kind == ValID::t_LocalID)
|
|
return Error(Label.Loc, "cannot take address of numeric label after "
|
|
"the function is defined");
|
|
BB = dyn_cast_or_null<BasicBlock>(
|
|
F->getValueSymbolTable()->lookup(Label.StrVal));
|
|
if (!BB)
|
|
return Error(Label.Loc, "referenced value is not a basic block");
|
|
}
|
|
|
|
ID.ConstantVal = BlockAddress::get(F, BB);
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
}
|
|
|
|
case lltok::kw_trunc:
|
|
case lltok::kw_zext:
|
|
case lltok::kw_sext:
|
|
case lltok::kw_fptrunc:
|
|
case lltok::kw_fpext:
|
|
case lltok::kw_bitcast:
|
|
case lltok::kw_addrspacecast:
|
|
case lltok::kw_uitofp:
|
|
case lltok::kw_sitofp:
|
|
case lltok::kw_fptoui:
|
|
case lltok::kw_fptosi:
|
|
case lltok::kw_inttoptr:
|
|
case lltok::kw_ptrtoint: {
|
|
unsigned Opc = Lex.getUIntVal();
|
|
Type *DestTy = nullptr;
|
|
Constant *SrcVal;
|
|
Lex.Lex();
|
|
if (ParseToken(lltok::lparen, "expected '(' after constantexpr cast") ||
|
|
ParseGlobalTypeAndValue(SrcVal) ||
|
|
ParseToken(lltok::kw_to, "expected 'to' in constantexpr cast") ||
|
|
ParseType(DestTy) ||
|
|
ParseToken(lltok::rparen, "expected ')' at end of constantexpr cast"))
|
|
return true;
|
|
if (!CastInst::castIsValid((Instruction::CastOps)Opc, SrcVal, DestTy))
|
|
return Error(ID.Loc, "invalid cast opcode for cast from '" +
|
|
getTypeString(SrcVal->getType()) + "' to '" +
|
|
getTypeString(DestTy) + "'");
|
|
ID.ConstantVal = ConstantExpr::getCast((Instruction::CastOps)Opc,
|
|
SrcVal, DestTy);
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
}
|
|
case lltok::kw_extractvalue: {
|
|
Lex.Lex();
|
|
Constant *Val;
|
|
SmallVector<unsigned, 4> Indices;
|
|
if (ParseToken(lltok::lparen, "expected '(' in extractvalue constantexpr")||
|
|
ParseGlobalTypeAndValue(Val) ||
|
|
ParseIndexList(Indices) ||
|
|
ParseToken(lltok::rparen, "expected ')' in extractvalue constantexpr"))
|
|
return true;
|
|
|
|
if (!Val->getType()->isAggregateType())
|
|
return Error(ID.Loc, "extractvalue operand must be aggregate type");
|
|
if (!ExtractValueInst::getIndexedType(Val->getType(), Indices))
|
|
return Error(ID.Loc, "invalid indices for extractvalue");
|
|
ID.ConstantVal = ConstantExpr::getExtractValue(Val, Indices);
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
}
|
|
case lltok::kw_insertvalue: {
|
|
Lex.Lex();
|
|
Constant *Val0, *Val1;
|
|
SmallVector<unsigned, 4> Indices;
|
|
if (ParseToken(lltok::lparen, "expected '(' in insertvalue constantexpr")||
|
|
ParseGlobalTypeAndValue(Val0) ||
|
|
ParseToken(lltok::comma, "expected comma in insertvalue constantexpr")||
|
|
ParseGlobalTypeAndValue(Val1) ||
|
|
ParseIndexList(Indices) ||
|
|
ParseToken(lltok::rparen, "expected ')' in insertvalue constantexpr"))
|
|
return true;
|
|
if (!Val0->getType()->isAggregateType())
|
|
return Error(ID.Loc, "insertvalue operand must be aggregate type");
|
|
Type *IndexedType =
|
|
ExtractValueInst::getIndexedType(Val0->getType(), Indices);
|
|
if (!IndexedType)
|
|
return Error(ID.Loc, "invalid indices for insertvalue");
|
|
if (IndexedType != Val1->getType())
|
|
return Error(ID.Loc, "insertvalue operand and field disagree in type: '" +
|
|
getTypeString(Val1->getType()) +
|
|
"' instead of '" + getTypeString(IndexedType) +
|
|
"'");
|
|
ID.ConstantVal = ConstantExpr::getInsertValue(Val0, Val1, Indices);
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
}
|
|
case lltok::kw_icmp:
|
|
case lltok::kw_fcmp: {
|
|
unsigned PredVal, Opc = Lex.getUIntVal();
|
|
Constant *Val0, *Val1;
|
|
Lex.Lex();
|
|
if (ParseCmpPredicate(PredVal, Opc) ||
|
|
ParseToken(lltok::lparen, "expected '(' in compare constantexpr") ||
|
|
ParseGlobalTypeAndValue(Val0) ||
|
|
ParseToken(lltok::comma, "expected comma in compare constantexpr") ||
|
|
ParseGlobalTypeAndValue(Val1) ||
|
|
ParseToken(lltok::rparen, "expected ')' in compare constantexpr"))
|
|
return true;
|
|
|
|
if (Val0->getType() != Val1->getType())
|
|
return Error(ID.Loc, "compare operands must have the same type");
|
|
|
|
CmpInst::Predicate Pred = (CmpInst::Predicate)PredVal;
|
|
|
|
if (Opc == Instruction::FCmp) {
|
|
if (!Val0->getType()->isFPOrFPVectorTy())
|
|
return Error(ID.Loc, "fcmp requires floating point operands");
|
|
ID.ConstantVal = ConstantExpr::getFCmp(Pred, Val0, Val1);
|
|
} else {
|
|
assert(Opc == Instruction::ICmp && "Unexpected opcode for CmpInst!");
|
|
if (!Val0->getType()->isIntOrIntVectorTy() &&
|
|
!Val0->getType()->getScalarType()->isPointerTy())
|
|
return Error(ID.Loc, "icmp requires pointer or integer operands");
|
|
ID.ConstantVal = ConstantExpr::getICmp(Pred, Val0, Val1);
|
|
}
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
}
|
|
|
|
// Binary Operators.
|
|
case lltok::kw_add:
|
|
case lltok::kw_fadd:
|
|
case lltok::kw_sub:
|
|
case lltok::kw_fsub:
|
|
case lltok::kw_mul:
|
|
case lltok::kw_fmul:
|
|
case lltok::kw_udiv:
|
|
case lltok::kw_sdiv:
|
|
case lltok::kw_fdiv:
|
|
case lltok::kw_urem:
|
|
case lltok::kw_srem:
|
|
case lltok::kw_frem:
|
|
case lltok::kw_shl:
|
|
case lltok::kw_lshr:
|
|
case lltok::kw_ashr: {
|
|
bool NUW = false;
|
|
bool NSW = false;
|
|
bool Exact = false;
|
|
unsigned Opc = Lex.getUIntVal();
|
|
Constant *Val0, *Val1;
|
|
Lex.Lex();
|
|
LocTy ModifierLoc = Lex.getLoc();
|
|
if (Opc == Instruction::Add || Opc == Instruction::Sub ||
|
|
Opc == Instruction::Mul || Opc == Instruction::Shl) {
|
|
if (EatIfPresent(lltok::kw_nuw))
|
|
NUW = true;
|
|
if (EatIfPresent(lltok::kw_nsw)) {
|
|
NSW = true;
|
|
if (EatIfPresent(lltok::kw_nuw))
|
|
NUW = true;
|
|
}
|
|
} else if (Opc == Instruction::SDiv || Opc == Instruction::UDiv ||
|
|
Opc == Instruction::LShr || Opc == Instruction::AShr) {
|
|
if (EatIfPresent(lltok::kw_exact))
|
|
Exact = true;
|
|
}
|
|
if (ParseToken(lltok::lparen, "expected '(' in binary constantexpr") ||
|
|
ParseGlobalTypeAndValue(Val0) ||
|
|
ParseToken(lltok::comma, "expected comma in binary constantexpr") ||
|
|
ParseGlobalTypeAndValue(Val1) ||
|
|
ParseToken(lltok::rparen, "expected ')' in binary constantexpr"))
|
|
return true;
|
|
if (Val0->getType() != Val1->getType())
|
|
return Error(ID.Loc, "operands of constexpr must have same type");
|
|
if (!Val0->getType()->isIntOrIntVectorTy()) {
|
|
if (NUW)
|
|
return Error(ModifierLoc, "nuw only applies to integer operations");
|
|
if (NSW)
|
|
return Error(ModifierLoc, "nsw only applies to integer operations");
|
|
}
|
|
// Check that the type is valid for the operator.
|
|
switch (Opc) {
|
|
case Instruction::Add:
|
|
case Instruction::Sub:
|
|
case Instruction::Mul:
|
|
case Instruction::UDiv:
|
|
case Instruction::SDiv:
|
|
case Instruction::URem:
|
|
case Instruction::SRem:
|
|
case Instruction::Shl:
|
|
case Instruction::AShr:
|
|
case Instruction::LShr:
|
|
if (!Val0->getType()->isIntOrIntVectorTy())
|
|
return Error(ID.Loc, "constexpr requires integer operands");
|
|
break;
|
|
case Instruction::FAdd:
|
|
case Instruction::FSub:
|
|
case Instruction::FMul:
|
|
case Instruction::FDiv:
|
|
case Instruction::FRem:
|
|
if (!Val0->getType()->isFPOrFPVectorTy())
|
|
return Error(ID.Loc, "constexpr requires fp operands");
|
|
break;
|
|
default: llvm_unreachable("Unknown binary operator!");
|
|
}
|
|
unsigned Flags = 0;
|
|
if (NUW) Flags |= OverflowingBinaryOperator::NoUnsignedWrap;
|
|
if (NSW) Flags |= OverflowingBinaryOperator::NoSignedWrap;
|
|
if (Exact) Flags |= PossiblyExactOperator::IsExact;
|
|
Constant *C = ConstantExpr::get(Opc, Val0, Val1, Flags);
|
|
ID.ConstantVal = C;
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
}
|
|
|
|
// Logical Operations
|
|
case lltok::kw_and:
|
|
case lltok::kw_or:
|
|
case lltok::kw_xor: {
|
|
unsigned Opc = Lex.getUIntVal();
|
|
Constant *Val0, *Val1;
|
|
Lex.Lex();
|
|
if (ParseToken(lltok::lparen, "expected '(' in logical constantexpr") ||
|
|
ParseGlobalTypeAndValue(Val0) ||
|
|
ParseToken(lltok::comma, "expected comma in logical constantexpr") ||
|
|
ParseGlobalTypeAndValue(Val1) ||
|
|
ParseToken(lltok::rparen, "expected ')' in logical constantexpr"))
|
|
return true;
|
|
if (Val0->getType() != Val1->getType())
|
|
return Error(ID.Loc, "operands of constexpr must have same type");
|
|
if (!Val0->getType()->isIntOrIntVectorTy())
|
|
return Error(ID.Loc,
|
|
"constexpr requires integer or integer vector operands");
|
|
ID.ConstantVal = ConstantExpr::get(Opc, Val0, Val1);
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
}
|
|
|
|
case lltok::kw_getelementptr:
|
|
case lltok::kw_shufflevector:
|
|
case lltok::kw_insertelement:
|
|
case lltok::kw_extractelement:
|
|
case lltok::kw_select: {
|
|
unsigned Opc = Lex.getUIntVal();
|
|
SmallVector<Constant*, 16> Elts;
|
|
bool InBounds = false;
|
|
Type *Ty;
|
|
Lex.Lex();
|
|
|
|
if (Opc == Instruction::GetElementPtr)
|
|
InBounds = EatIfPresent(lltok::kw_inbounds);
|
|
|
|
if (ParseToken(lltok::lparen, "expected '(' in constantexpr"))
|
|
return true;
|
|
|
|
LocTy ExplicitTypeLoc = Lex.getLoc();
|
|
if (Opc == Instruction::GetElementPtr) {
|
|
if (ParseType(Ty) ||
|
|
ParseToken(lltok::comma, "expected comma after getelementptr's type"))
|
|
return true;
|
|
}
|
|
|
|
Optional<unsigned> InRangeOp;
|
|
if (ParseGlobalValueVector(
|
|
Elts, Opc == Instruction::GetElementPtr ? &InRangeOp : nullptr) ||
|
|
ParseToken(lltok::rparen, "expected ')' in constantexpr"))
|
|
return true;
|
|
|
|
if (Opc == Instruction::GetElementPtr) {
|
|
if (Elts.size() == 0 ||
|
|
!Elts[0]->getType()->getScalarType()->isPointerTy())
|
|
return Error(ID.Loc, "base of getelementptr must be a pointer");
|
|
|
|
Type *BaseType = Elts[0]->getType();
|
|
auto *BasePointerType = cast<PointerType>(BaseType->getScalarType());
|
|
if (Ty != BasePointerType->getElementType())
|
|
return Error(
|
|
ExplicitTypeLoc,
|
|
"explicit pointee type doesn't match operand's pointee type");
|
|
|
|
ArrayRef<Constant *> Indices(Elts.begin() + 1, Elts.end());
|
|
for (Constant *Val : Indices) {
|
|
Type *ValTy = Val->getType();
|
|
if (!ValTy->getScalarType()->isIntegerTy())
|
|
return Error(ID.Loc, "getelementptr index must be an integer");
|
|
if (ValTy->isVectorTy() != BaseType->isVectorTy())
|
|
return Error(ID.Loc, "getelementptr index type missmatch");
|
|
if (ValTy->isVectorTy()) {
|
|
unsigned ValNumEl = ValTy->getVectorNumElements();
|
|
unsigned PtrNumEl = BaseType->getVectorNumElements();
|
|
if (ValNumEl != PtrNumEl)
|
|
return Error(
|
|
ID.Loc,
|
|
"getelementptr vector index has a wrong number of elements");
|
|
}
|
|
}
|
|
|
|
SmallPtrSet<Type*, 4> Visited;
|
|
if (!Indices.empty() && !Ty->isSized(&Visited))
|
|
return Error(ID.Loc, "base element of getelementptr must be sized");
|
|
|
|
if (!GetElementPtrInst::getIndexedType(Ty, Indices))
|
|
return Error(ID.Loc, "invalid getelementptr indices");
|
|
|
|
if (InRangeOp) {
|
|
if (*InRangeOp == 0)
|
|
return Error(ID.Loc,
|
|
"inrange keyword may not appear on pointer operand");
|
|
--*InRangeOp;
|
|
}
|
|
|
|
ID.ConstantVal = ConstantExpr::getGetElementPtr(Ty, Elts[0], Indices,
|
|
InBounds, InRangeOp);
|
|
} else if (Opc == Instruction::Select) {
|
|
if (Elts.size() != 3)
|
|
return Error(ID.Loc, "expected three operands to select");
|
|
if (const char *Reason = SelectInst::areInvalidOperands(Elts[0], Elts[1],
|
|
Elts[2]))
|
|
return Error(ID.Loc, Reason);
|
|
ID.ConstantVal = ConstantExpr::getSelect(Elts[0], Elts[1], Elts[2]);
|
|
} else if (Opc == Instruction::ShuffleVector) {
|
|
if (Elts.size() != 3)
|
|
return Error(ID.Loc, "expected three operands to shufflevector");
|
|
if (!ShuffleVectorInst::isValidOperands(Elts[0], Elts[1], Elts[2]))
|
|
return Error(ID.Loc, "invalid operands to shufflevector");
|
|
ID.ConstantVal =
|
|
ConstantExpr::getShuffleVector(Elts[0], Elts[1],Elts[2]);
|
|
} else if (Opc == Instruction::ExtractElement) {
|
|
if (Elts.size() != 2)
|
|
return Error(ID.Loc, "expected two operands to extractelement");
|
|
if (!ExtractElementInst::isValidOperands(Elts[0], Elts[1]))
|
|
return Error(ID.Loc, "invalid extractelement operands");
|
|
ID.ConstantVal = ConstantExpr::getExtractElement(Elts[0], Elts[1]);
|
|
} else {
|
|
assert(Opc == Instruction::InsertElement && "Unknown opcode");
|
|
if (Elts.size() != 3)
|
|
return Error(ID.Loc, "expected three operands to insertelement");
|
|
if (!InsertElementInst::isValidOperands(Elts[0], Elts[1], Elts[2]))
|
|
return Error(ID.Loc, "invalid insertelement operands");
|
|
ID.ConstantVal =
|
|
ConstantExpr::getInsertElement(Elts[0], Elts[1],Elts[2]);
|
|
}
|
|
|
|
ID.Kind = ValID::t_Constant;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
/// ParseGlobalValue - Parse a global value with the specified type.
|
|
bool LLParser::ParseGlobalValue(Type *Ty, Constant *&C) {
|
|
C = nullptr;
|
|
ValID ID;
|
|
Value *V = nullptr;
|
|
bool Parsed = ParseValID(ID) ||
|
|
ConvertValIDToValue(Ty, ID, V, nullptr);
|
|
if (V && !(C = dyn_cast<Constant>(V)))
|
|
return Error(ID.Loc, "global values must be constants");
|
|
return Parsed;
|
|
}
|
|
|
|
bool LLParser::ParseGlobalTypeAndValue(Constant *&V) {
|
|
Type *Ty = nullptr;
|
|
return ParseType(Ty) ||
|
|
ParseGlobalValue(Ty, V);
|
|
}
|
|
|
|
bool LLParser::parseOptionalComdat(StringRef GlobalName, Comdat *&C) {
|
|
C = nullptr;
|
|
|
|
LocTy KwLoc = Lex.getLoc();
|
|
if (!EatIfPresent(lltok::kw_comdat))
|
|
return false;
|
|
|
|
if (EatIfPresent(lltok::lparen)) {
|
|
if (Lex.getKind() != lltok::ComdatVar)
|
|
return TokError("expected comdat variable");
|
|
C = getComdat(Lex.getStrVal(), Lex.getLoc());
|
|
Lex.Lex();
|
|
if (ParseToken(lltok::rparen, "expected ')' after comdat var"))
|
|
return true;
|
|
} else {
|
|
if (GlobalName.empty())
|
|
return TokError("comdat cannot be unnamed");
|
|
C = getComdat(GlobalName, KwLoc);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// ParseGlobalValueVector
|
|
/// ::= /*empty*/
|
|
/// ::= [inrange] TypeAndValue (',' [inrange] TypeAndValue)*
|
|
bool LLParser::ParseGlobalValueVector(SmallVectorImpl<Constant *> &Elts,
|
|
Optional<unsigned> *InRangeOp) {
|
|
// Empty list.
|
|
if (Lex.getKind() == lltok::rbrace ||
|
|
Lex.getKind() == lltok::rsquare ||
|
|
Lex.getKind() == lltok::greater ||
|
|
Lex.getKind() == lltok::rparen)
|
|
return false;
|
|
|
|
do {
|
|
if (InRangeOp && !*InRangeOp && EatIfPresent(lltok::kw_inrange))
|
|
*InRangeOp = Elts.size();
|
|
|
|
Constant *C;
|
|
if (ParseGlobalTypeAndValue(C)) return true;
|
|
Elts.push_back(C);
|
|
} while (EatIfPresent(lltok::comma));
|
|
|
|
return false;
|
|
}
|
|
|
|
bool LLParser::ParseMDTuple(MDNode *&MD, bool IsDistinct) {
|
|
SmallVector<Metadata *, 16> Elts;
|
|
if (ParseMDNodeVector(Elts))
|
|
return true;
|
|
|
|
MD = (IsDistinct ? MDTuple::getDistinct : MDTuple::get)(Context, Elts);
|
|
return false;
|
|
}
|
|
|
|
/// MDNode:
|
|
/// ::= !{ ... }
|
|
/// ::= !7
|
|
/// ::= !DILocation(...)
|
|
bool LLParser::ParseMDNode(MDNode *&N) {
|
|
if (Lex.getKind() == lltok::MetadataVar)
|
|
return ParseSpecializedMDNode(N);
|
|
|
|
return ParseToken(lltok::exclaim, "expected '!' here") ||
|
|
ParseMDNodeTail(N);
|
|
}
|
|
|
|
bool LLParser::ParseMDNodeTail(MDNode *&N) {
|
|
// !{ ... }
|
|
if (Lex.getKind() == lltok::lbrace)
|
|
return ParseMDTuple(N);
|
|
|
|
// !42
|
|
return ParseMDNodeID(N);
|
|
}
|
|
|
|
namespace {
|
|
|
|
/// Structure to represent an optional metadata field.
|
|
template <class FieldTy> struct MDFieldImpl {
|
|
typedef MDFieldImpl ImplTy;
|
|
FieldTy Val;
|
|
bool Seen;
|
|
|
|
void assign(FieldTy Val) {
|
|
Seen = true;
|
|
this->Val = std::move(Val);
|
|
}
|
|
|
|
explicit MDFieldImpl(FieldTy Default)
|
|
: Val(std::move(Default)), Seen(false) {}
|
|
};
|
|
|
|
struct MDUnsignedField : public MDFieldImpl<uint64_t> {
|
|
uint64_t Max;
|
|
|
|
MDUnsignedField(uint64_t Default = 0, uint64_t Max = UINT64_MAX)
|
|
: ImplTy(Default), Max(Max) {}
|
|
};
|
|
|
|
struct LineField : public MDUnsignedField {
|
|
LineField() : MDUnsignedField(0, UINT32_MAX) {}
|
|
};
|
|
|
|
struct ColumnField : public MDUnsignedField {
|
|
ColumnField() : MDUnsignedField(0, UINT16_MAX) {}
|
|
};
|
|
|
|
struct DwarfTagField : public MDUnsignedField {
|
|
DwarfTagField() : MDUnsignedField(0, dwarf::DW_TAG_hi_user) {}
|
|
DwarfTagField(dwarf::Tag DefaultTag)
|
|
: MDUnsignedField(DefaultTag, dwarf::DW_TAG_hi_user) {}
|
|
};
|
|
|
|
struct DwarfMacinfoTypeField : public MDUnsignedField {
|
|
DwarfMacinfoTypeField() : MDUnsignedField(0, dwarf::DW_MACINFO_vendor_ext) {}
|
|
DwarfMacinfoTypeField(dwarf::MacinfoRecordType DefaultType)
|
|
: MDUnsignedField(DefaultType, dwarf::DW_MACINFO_vendor_ext) {}
|
|
};
|
|
|
|
struct DwarfAttEncodingField : public MDUnsignedField {
|
|
DwarfAttEncodingField() : MDUnsignedField(0, dwarf::DW_ATE_hi_user) {}
|
|
};
|
|
|
|
struct DwarfVirtualityField : public MDUnsignedField {
|
|
DwarfVirtualityField() : MDUnsignedField(0, dwarf::DW_VIRTUALITY_max) {}
|
|
};
|
|
|
|
struct DwarfLangField : public MDUnsignedField {
|
|
DwarfLangField() : MDUnsignedField(0, dwarf::DW_LANG_hi_user) {}
|
|
};
|
|
|
|
struct DwarfCCField : public MDUnsignedField {
|
|
DwarfCCField() : MDUnsignedField(0, dwarf::DW_CC_hi_user) {}
|
|
};
|
|
|
|
struct EmissionKindField : public MDUnsignedField {
|
|
EmissionKindField() : MDUnsignedField(0, DICompileUnit::LastEmissionKind) {}
|
|
};
|
|
|
|
struct DIFlagField : public MDFieldImpl<DINode::DIFlags> {
|
|
DIFlagField() : MDFieldImpl(DINode::FlagZero) {}
|
|
};
|
|
|
|
struct MDSignedField : public MDFieldImpl<int64_t> {
|
|
int64_t Min;
|
|
int64_t Max;
|
|
|
|
MDSignedField(int64_t Default = 0)
|
|
: ImplTy(Default), Min(INT64_MIN), Max(INT64_MAX) {}
|
|
MDSignedField(int64_t Default, int64_t Min, int64_t Max)
|
|
: ImplTy(Default), Min(Min), Max(Max) {}
|
|
};
|
|
|
|
struct MDBoolField : public MDFieldImpl<bool> {
|
|
MDBoolField(bool Default = false) : ImplTy(Default) {}
|
|
};
|
|
|
|
struct MDField : public MDFieldImpl<Metadata *> {
|
|
bool AllowNull;
|
|
|
|
MDField(bool AllowNull = true) : ImplTy(nullptr), AllowNull(AllowNull) {}
|
|
};
|
|
|
|
struct MDConstant : public MDFieldImpl<ConstantAsMetadata *> {
|
|
MDConstant() : ImplTy(nullptr) {}
|
|
};
|
|
|
|
struct MDStringField : public MDFieldImpl<MDString *> {
|
|
bool AllowEmpty;
|
|
MDStringField(bool AllowEmpty = true)
|
|
: ImplTy(nullptr), AllowEmpty(AllowEmpty) {}
|
|
};
|
|
|
|
struct MDFieldList : public MDFieldImpl<SmallVector<Metadata *, 4>> {
|
|
MDFieldList() : ImplTy(SmallVector<Metadata *, 4>()) {}
|
|
};
|
|
|
|
} // end anonymous namespace
|
|
|
|
namespace llvm {
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name,
|
|
MDUnsignedField &Result) {
|
|
if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned())
|
|
return TokError("expected unsigned integer");
|
|
|
|
auto &U = Lex.getAPSIntVal();
|
|
if (U.ugt(Result.Max))
|
|
return TokError("value for '" + Name + "' too large, limit is " +
|
|
Twine(Result.Max));
|
|
Result.assign(U.getZExtValue());
|
|
assert(Result.Val <= Result.Max && "Expected value in range");
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name, LineField &Result) {
|
|
return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
|
|
}
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name, ColumnField &Result) {
|
|
return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name, DwarfTagField &Result) {
|
|
if (Lex.getKind() == lltok::APSInt)
|
|
return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
|
|
|
|
if (Lex.getKind() != lltok::DwarfTag)
|
|
return TokError("expected DWARF tag");
|
|
|
|
unsigned Tag = dwarf::getTag(Lex.getStrVal());
|
|
if (Tag == dwarf::DW_TAG_invalid)
|
|
return TokError("invalid DWARF tag" + Twine(" '") + Lex.getStrVal() + "'");
|
|
assert(Tag <= Result.Max && "Expected valid DWARF tag");
|
|
|
|
Result.assign(Tag);
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name,
|
|
DwarfMacinfoTypeField &Result) {
|
|
if (Lex.getKind() == lltok::APSInt)
|
|
return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
|
|
|
|
if (Lex.getKind() != lltok::DwarfMacinfo)
|
|
return TokError("expected DWARF macinfo type");
|
|
|
|
unsigned Macinfo = dwarf::getMacinfo(Lex.getStrVal());
|
|
if (Macinfo == dwarf::DW_MACINFO_invalid)
|
|
return TokError(
|
|
"invalid DWARF macinfo type" + Twine(" '") + Lex.getStrVal() + "'");
|
|
assert(Macinfo <= Result.Max && "Expected valid DWARF macinfo type");
|
|
|
|
Result.assign(Macinfo);
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name,
|
|
DwarfVirtualityField &Result) {
|
|
if (Lex.getKind() == lltok::APSInt)
|
|
return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
|
|
|
|
if (Lex.getKind() != lltok::DwarfVirtuality)
|
|
return TokError("expected DWARF virtuality code");
|
|
|
|
unsigned Virtuality = dwarf::getVirtuality(Lex.getStrVal());
|
|
if (Virtuality == dwarf::DW_VIRTUALITY_invalid)
|
|
return TokError("invalid DWARF virtuality code" + Twine(" '") +
|
|
Lex.getStrVal() + "'");
|
|
assert(Virtuality <= Result.Max && "Expected valid DWARF virtuality code");
|
|
Result.assign(Virtuality);
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name, DwarfLangField &Result) {
|
|
if (Lex.getKind() == lltok::APSInt)
|
|
return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
|
|
|
|
if (Lex.getKind() != lltok::DwarfLang)
|
|
return TokError("expected DWARF language");
|
|
|
|
unsigned Lang = dwarf::getLanguage(Lex.getStrVal());
|
|
if (!Lang)
|
|
return TokError("invalid DWARF language" + Twine(" '") + Lex.getStrVal() +
|
|
"'");
|
|
assert(Lang <= Result.Max && "Expected valid DWARF language");
|
|
Result.assign(Lang);
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name, DwarfCCField &Result) {
|
|
if (Lex.getKind() == lltok::APSInt)
|
|
return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
|
|
|
|
if (Lex.getKind() != lltok::DwarfCC)
|
|
return TokError("expected DWARF calling convention");
|
|
|
|
unsigned CC = dwarf::getCallingConvention(Lex.getStrVal());
|
|
if (!CC)
|
|
return TokError("invalid DWARF calling convention" + Twine(" '") + Lex.getStrVal() +
|
|
"'");
|
|
assert(CC <= Result.Max && "Expected valid DWARF calling convention");
|
|
Result.assign(CC);
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name, EmissionKindField &Result) {
|
|
if (Lex.getKind() == lltok::APSInt)
|
|
return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
|
|
|
|
if (Lex.getKind() != lltok::EmissionKind)
|
|
return TokError("expected emission kind");
|
|
|
|
auto Kind = DICompileUnit::getEmissionKind(Lex.getStrVal());
|
|
if (!Kind)
|
|
return TokError("invalid emission kind" + Twine(" '") + Lex.getStrVal() +
|
|
"'");
|
|
assert(*Kind <= Result.Max && "Expected valid emission kind");
|
|
Result.assign(*Kind);
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name,
|
|
DwarfAttEncodingField &Result) {
|
|
if (Lex.getKind() == lltok::APSInt)
|
|
return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
|
|
|
|
if (Lex.getKind() != lltok::DwarfAttEncoding)
|
|
return TokError("expected DWARF type attribute encoding");
|
|
|
|
unsigned Encoding = dwarf::getAttributeEncoding(Lex.getStrVal());
|
|
if (!Encoding)
|
|
return TokError("invalid DWARF type attribute encoding" + Twine(" '") +
|
|
Lex.getStrVal() + "'");
|
|
assert(Encoding <= Result.Max && "Expected valid DWARF language");
|
|
Result.assign(Encoding);
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
/// DIFlagField
|
|
/// ::= uint32
|
|
/// ::= DIFlagVector
|
|
/// ::= DIFlagVector '|' DIFlagFwdDecl '|' uint32 '|' DIFlagPublic
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name, DIFlagField &Result) {
|
|
|
|
// Parser for a single flag.
|
|
auto parseFlag = [&](DINode::DIFlags &Val) {
|
|
if (Lex.getKind() == lltok::APSInt && !Lex.getAPSIntVal().isSigned()) {
|
|
uint32_t TempVal = static_cast<uint32_t>(Val);
|
|
bool Res = ParseUInt32(TempVal);
|
|
Val = static_cast<DINode::DIFlags>(TempVal);
|
|
return Res;
|
|
}
|
|
|
|
if (Lex.getKind() != lltok::DIFlag)
|
|
return TokError("expected debug info flag");
|
|
|
|
Val = DINode::getFlag(Lex.getStrVal());
|
|
if (!Val)
|
|
return TokError(Twine("invalid debug info flag flag '") +
|
|
Lex.getStrVal() + "'");
|
|
Lex.Lex();
|
|
return false;
|
|
};
|
|
|
|
// Parse the flags and combine them together.
|
|
DINode::DIFlags Combined = DINode::FlagZero;
|
|
do {
|
|
DINode::DIFlags Val;
|
|
if (parseFlag(Val))
|
|
return true;
|
|
Combined |= Val;
|
|
} while (EatIfPresent(lltok::bar));
|
|
|
|
Result.assign(Combined);
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name,
|
|
MDSignedField &Result) {
|
|
if (Lex.getKind() != lltok::APSInt)
|
|
return TokError("expected signed integer");
|
|
|
|
auto &S = Lex.getAPSIntVal();
|
|
if (S < Result.Min)
|
|
return TokError("value for '" + Name + "' too small, limit is " +
|
|
Twine(Result.Min));
|
|
if (S > Result.Max)
|
|
return TokError("value for '" + Name + "' too large, limit is " +
|
|
Twine(Result.Max));
|
|
Result.assign(S.getExtValue());
|
|
assert(Result.Val >= Result.Min && "Expected value in range");
|
|
assert(Result.Val <= Result.Max && "Expected value in range");
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name, MDBoolField &Result) {
|
|
switch (Lex.getKind()) {
|
|
default:
|
|
return TokError("expected 'true' or 'false'");
|
|
case lltok::kw_true:
|
|
Result.assign(true);
|
|
break;
|
|
case lltok::kw_false:
|
|
Result.assign(false);
|
|
break;
|
|
}
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name, MDField &Result) {
|
|
if (Lex.getKind() == lltok::kw_null) {
|
|
if (!Result.AllowNull)
|
|
return TokError("'" + Name + "' cannot be null");
|
|
Lex.Lex();
|
|
Result.assign(nullptr);
|
|
return false;
|
|
}
|
|
|
|
Metadata *MD;
|
|
if (ParseMetadata(MD, nullptr))
|
|
return true;
|
|
|
|
Result.assign(MD);
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name, MDStringField &Result) {
|
|
LocTy ValueLoc = Lex.getLoc();
|
|
std::string S;
|
|
if (ParseStringConstant(S))
|
|
return true;
|
|
|
|
if (!Result.AllowEmpty && S.empty())
|
|
return Error(ValueLoc, "'" + Name + "' cannot be empty");
|
|
|
|
Result.assign(S.empty() ? nullptr : MDString::get(Context, S));
|
|
return false;
|
|
}
|
|
|
|
template <>
|
|
bool LLParser::ParseMDField(LocTy Loc, StringRef Name, MDFieldList &Result) {
|
|
SmallVector<Metadata *, 4> MDs;
|
|
if (ParseMDNodeVector(MDs))
|
|
return true;
|
|
|
|
Result.assign(std::move(MDs));
|
|
return false;
|
|
}
|
|
|
|
} // end namespace llvm
|
|
|
|
template <class ParserTy>
|
|
bool LLParser::ParseMDFieldsImplBody(ParserTy parseField) {
|
|
do {
|
|
if (Lex.getKind() != lltok::LabelStr)
|
|
return TokError("expected field label here");
|
|
|
|
if (parseField())
|
|
return true;
|
|
} while (EatIfPresent(lltok::comma));
|
|
|
|
return false;
|
|
}
|
|
|
|
template <class ParserTy>
|
|
bool LLParser::ParseMDFieldsImpl(ParserTy parseField, LocTy &ClosingLoc) {
|
|
assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name");
|
|
Lex.Lex();
|
|
|
|
if (ParseToken(lltok::lparen, "expected '(' here"))
|
|
return true;
|
|
if (Lex.getKind() != lltok::rparen)
|
|
if (ParseMDFieldsImplBody(parseField))
|
|
return true;
|
|
|
|
ClosingLoc = Lex.getLoc();
|
|
return ParseToken(lltok::rparen, "expected ')' here");
|
|
}
|
|
|
|
template <class FieldTy>
|
|
bool LLParser::ParseMDField(StringRef Name, FieldTy &Result) {
|
|
if (Result.Seen)
|
|
return TokError("field '" + Name + "' cannot be specified more than once");
|
|
|
|
LocTy Loc = Lex.getLoc();
|
|
Lex.Lex();
|
|
return ParseMDField(Loc, Name, Result);
|
|
}
|
|
|
|
bool LLParser::ParseSpecializedMDNode(MDNode *&N, bool IsDistinct) {
|
|
assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name");
|
|
|
|
#define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS) \
|
|
if (Lex.getStrVal() == #CLASS) \
|
|
return Parse##CLASS(N, IsDistinct);
|
|
#include "llvm/IR/Metadata.def"
|
|
|
|
return TokError("expected metadata type");
|
|
}
|
|
|
|
#define DECLARE_FIELD(NAME, TYPE, INIT) TYPE NAME INIT
|
|
#define NOP_FIELD(NAME, TYPE, INIT)
|
|
#define REQUIRE_FIELD(NAME, TYPE, INIT) \
|
|
if (!NAME.Seen) \
|
|
return Error(ClosingLoc, "missing required field '" #NAME "'");
|
|
#define PARSE_MD_FIELD(NAME, TYPE, DEFAULT) \
|
|
if (Lex.getStrVal() == #NAME) \
|
|
return ParseMDField(#NAME, NAME);
|
|
#define PARSE_MD_FIELDS() \
|
|
VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) \
|
|
do { \
|
|
LocTy ClosingLoc; \
|
|
if (ParseMDFieldsImpl([&]() -> bool { \
|
|
VISIT_MD_FIELDS(PARSE_MD_FIELD, PARSE_MD_FIELD) \
|
|
return TokError(Twine("invalid field '") + Lex.getStrVal() + "'"); \
|
|
}, ClosingLoc)) \
|
|
return true; \
|
|
VISIT_MD_FIELDS(NOP_FIELD, REQUIRE_FIELD) \
|
|
} while (false)
|
|
#define GET_OR_DISTINCT(CLASS, ARGS) \
|
|
(IsDistinct ? CLASS::getDistinct ARGS : CLASS::get ARGS)
|
|
|
|
/// ParseDILocationFields:
|
|
/// ::= !DILocation(line: 43, column: 8, scope: !5, inlinedAt: !6)
|
|
bool LLParser::ParseDILocation(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
OPTIONAL(line, LineField, ); \
|
|
OPTIONAL(column, ColumnField, ); \
|
|
REQUIRED(scope, MDField, (/* AllowNull */ false)); \
|
|
OPTIONAL(inlinedAt, MDField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(
|
|
DILocation, (Context, line.Val, column.Val, scope.Val, inlinedAt.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseGenericDINode:
|
|
/// ::= !GenericDINode(tag: 15, header: "...", operands: {...})
|
|
bool LLParser::ParseGenericDINode(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(tag, DwarfTagField, ); \
|
|
OPTIONAL(header, MDStringField, ); \
|
|
OPTIONAL(operands, MDFieldList, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(GenericDINode,
|
|
(Context, tag.Val, header.Val, operands.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDISubrange:
|
|
/// ::= !DISubrange(count: 30, lowerBound: 2)
|
|
bool LLParser::ParseDISubrange(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(count, MDSignedField, (-1, -1, INT64_MAX)); \
|
|
OPTIONAL(lowerBound, MDSignedField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DISubrange, (Context, count.Val, lowerBound.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDIEnumerator:
|
|
/// ::= !DIEnumerator(value: 30, name: "SomeKind")
|
|
bool LLParser::ParseDIEnumerator(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(name, MDStringField, ); \
|
|
REQUIRED(value, MDSignedField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DIEnumerator, (Context, value.Val, name.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDIBasicType:
|
|
/// ::= !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32)
|
|
bool LLParser::ParseDIBasicType(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
OPTIONAL(tag, DwarfTagField, (dwarf::DW_TAG_base_type)); \
|
|
OPTIONAL(name, MDStringField, ); \
|
|
OPTIONAL(size, MDUnsignedField, (0, UINT64_MAX)); \
|
|
OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); \
|
|
OPTIONAL(encoding, DwarfAttEncodingField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DIBasicType, (Context, tag.Val, name.Val, size.Val,
|
|
align.Val, encoding.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDIDerivedType:
|
|
/// ::= !DIDerivedType(tag: DW_TAG_pointer_type, name: "int", file: !0,
|
|
/// line: 7, scope: !1, baseType: !2, size: 32,
|
|
/// align: 32, offset: 0, flags: 0, extraData: !3)
|
|
bool LLParser::ParseDIDerivedType(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(tag, DwarfTagField, ); \
|
|
OPTIONAL(name, MDStringField, ); \
|
|
OPTIONAL(file, MDField, ); \
|
|
OPTIONAL(line, LineField, ); \
|
|
OPTIONAL(scope, MDField, ); \
|
|
REQUIRED(baseType, MDField, ); \
|
|
OPTIONAL(size, MDUnsignedField, (0, UINT64_MAX)); \
|
|
OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); \
|
|
OPTIONAL(offset, MDUnsignedField, (0, UINT64_MAX)); \
|
|
OPTIONAL(flags, DIFlagField, ); \
|
|
OPTIONAL(extraData, MDField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DIDerivedType,
|
|
(Context, tag.Val, name.Val, file.Val, line.Val,
|
|
scope.Val, baseType.Val, size.Val, align.Val,
|
|
offset.Val, flags.Val, extraData.Val));
|
|
return false;
|
|
}
|
|
|
|
bool LLParser::ParseDICompositeType(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(tag, DwarfTagField, ); \
|
|
OPTIONAL(name, MDStringField, ); \
|
|
OPTIONAL(file, MDField, ); \
|
|
OPTIONAL(line, LineField, ); \
|
|
OPTIONAL(scope, MDField, ); \
|
|
OPTIONAL(baseType, MDField, ); \
|
|
OPTIONAL(size, MDUnsignedField, (0, UINT64_MAX)); \
|
|
OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); \
|
|
OPTIONAL(offset, MDUnsignedField, (0, UINT64_MAX)); \
|
|
OPTIONAL(flags, DIFlagField, ); \
|
|
OPTIONAL(elements, MDField, ); \
|
|
OPTIONAL(runtimeLang, DwarfLangField, ); \
|
|
OPTIONAL(vtableHolder, MDField, ); \
|
|
OPTIONAL(templateParams, MDField, ); \
|
|
OPTIONAL(identifier, MDStringField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
// If this has an identifier try to build an ODR type.
|
|
if (identifier.Val)
|
|
if (auto *CT = DICompositeType::buildODRType(
|
|
Context, *identifier.Val, tag.Val, name.Val, file.Val, line.Val,
|
|
scope.Val, baseType.Val, size.Val, align.Val, offset.Val, flags.Val,
|
|
elements.Val, runtimeLang.Val, vtableHolder.Val,
|
|
templateParams.Val)) {
|
|
Result = CT;
|
|
return false;
|
|
}
|
|
|
|
// Create a new node, and save it in the context if it belongs in the type
|
|
// map.
|
|
Result = GET_OR_DISTINCT(
|
|
DICompositeType,
|
|
(Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val,
|
|
size.Val, align.Val, offset.Val, flags.Val, elements.Val,
|
|
runtimeLang.Val, vtableHolder.Val, templateParams.Val, identifier.Val));
|
|
return false;
|
|
}
|
|
|
|
bool LLParser::ParseDISubroutineType(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
OPTIONAL(flags, DIFlagField, ); \
|
|
OPTIONAL(cc, DwarfCCField, ); \
|
|
REQUIRED(types, MDField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DISubroutineType,
|
|
(Context, flags.Val, cc.Val, types.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDIFileType:
|
|
/// ::= !DIFileType(filename: "path/to/file", directory: "/path/to/dir")
|
|
bool LLParser::ParseDIFile(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(filename, MDStringField, ); \
|
|
REQUIRED(directory, MDStringField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DIFile, (Context, filename.Val, directory.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDICompileUnit:
|
|
/// ::= !DICompileUnit(language: DW_LANG_C99, file: !0, producer: "clang",
|
|
/// isOptimized: true, flags: "-O2", runtimeVersion: 1,
|
|
/// splitDebugFilename: "abc.debug",
|
|
/// emissionKind: FullDebug, enums: !1, retainedTypes: !2,
|
|
/// globals: !4, imports: !5, macros: !6, dwoId: 0x0abcd)
|
|
bool LLParser::ParseDICompileUnit(MDNode *&Result, bool IsDistinct) {
|
|
if (!IsDistinct)
|
|
return Lex.Error("missing 'distinct', required for !DICompileUnit");
|
|
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(language, DwarfLangField, ); \
|
|
REQUIRED(file, MDField, (/* AllowNull */ false)); \
|
|
OPTIONAL(producer, MDStringField, ); \
|
|
OPTIONAL(isOptimized, MDBoolField, ); \
|
|
OPTIONAL(flags, MDStringField, ); \
|
|
OPTIONAL(runtimeVersion, MDUnsignedField, (0, UINT32_MAX)); \
|
|
OPTIONAL(splitDebugFilename, MDStringField, ); \
|
|
OPTIONAL(emissionKind, EmissionKindField, ); \
|
|
OPTIONAL(enums, MDField, ); \
|
|
OPTIONAL(retainedTypes, MDField, ); \
|
|
OPTIONAL(globals, MDField, ); \
|
|
OPTIONAL(imports, MDField, ); \
|
|
OPTIONAL(macros, MDField, ); \
|
|
OPTIONAL(dwoId, MDUnsignedField, ); \
|
|
OPTIONAL(splitDebugInlining, MDBoolField, = true);
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = DICompileUnit::getDistinct(
|
|
Context, language.Val, file.Val, producer.Val, isOptimized.Val, flags.Val,
|
|
runtimeVersion.Val, splitDebugFilename.Val, emissionKind.Val, enums.Val,
|
|
retainedTypes.Val, globals.Val, imports.Val, macros.Val, dwoId.Val,
|
|
splitDebugInlining.Val);
|
|
return false;
|
|
}
|
|
|
|
/// ParseDISubprogram:
|
|
/// ::= !DISubprogram(scope: !0, name: "foo", linkageName: "_Zfoo",
|
|
/// file: !1, line: 7, type: !2, isLocal: false,
|
|
/// isDefinition: true, scopeLine: 8, containingType: !3,
|
|
/// virtuality: DW_VIRTUALTIY_pure_virtual,
|
|
/// virtualIndex: 10, thisAdjustment: 4, flags: 11,
|
|
/// isOptimized: false, templateParams: !4, declaration: !5,
|
|
/// variables: !6)
|
|
bool LLParser::ParseDISubprogram(MDNode *&Result, bool IsDistinct) {
|
|
auto Loc = Lex.getLoc();
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
OPTIONAL(scope, MDField, ); \
|
|
OPTIONAL(name, MDStringField, ); \
|
|
OPTIONAL(linkageName, MDStringField, ); \
|
|
OPTIONAL(file, MDField, ); \
|
|
OPTIONAL(line, LineField, ); \
|
|
OPTIONAL(type, MDField, ); \
|
|
OPTIONAL(isLocal, MDBoolField, ); \
|
|
OPTIONAL(isDefinition, MDBoolField, (true)); \
|
|
OPTIONAL(scopeLine, LineField, ); \
|
|
OPTIONAL(containingType, MDField, ); \
|
|
OPTIONAL(virtuality, DwarfVirtualityField, ); \
|
|
OPTIONAL(virtualIndex, MDUnsignedField, (0, UINT32_MAX)); \
|
|
OPTIONAL(thisAdjustment, MDSignedField, (0, INT32_MIN, INT32_MAX)); \
|
|
OPTIONAL(flags, DIFlagField, ); \
|
|
OPTIONAL(isOptimized, MDBoolField, ); \
|
|
OPTIONAL(unit, MDField, ); \
|
|
OPTIONAL(templateParams, MDField, ); \
|
|
OPTIONAL(declaration, MDField, ); \
|
|
OPTIONAL(variables, MDField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
if (isDefinition.Val && !IsDistinct)
|
|
return Lex.Error(
|
|
Loc,
|
|
"missing 'distinct', required for !DISubprogram when 'isDefinition'");
|
|
|
|
Result = GET_OR_DISTINCT(
|
|
DISubprogram, (Context, scope.Val, name.Val, linkageName.Val, file.Val,
|
|
line.Val, type.Val, isLocal.Val, isDefinition.Val,
|
|
scopeLine.Val, containingType.Val, virtuality.Val,
|
|
virtualIndex.Val, thisAdjustment.Val, flags.Val,
|
|
isOptimized.Val, unit.Val, templateParams.Val,
|
|
declaration.Val, variables.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDILexicalBlock:
|
|
/// ::= !DILexicalBlock(scope: !0, file: !2, line: 7, column: 9)
|
|
bool LLParser::ParseDILexicalBlock(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(scope, MDField, (/* AllowNull */ false)); \
|
|
OPTIONAL(file, MDField, ); \
|
|
OPTIONAL(line, LineField, ); \
|
|
OPTIONAL(column, ColumnField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(
|
|
DILexicalBlock, (Context, scope.Val, file.Val, line.Val, column.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDILexicalBlockFile:
|
|
/// ::= !DILexicalBlockFile(scope: !0, file: !2, discriminator: 9)
|
|
bool LLParser::ParseDILexicalBlockFile(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(scope, MDField, (/* AllowNull */ false)); \
|
|
OPTIONAL(file, MDField, ); \
|
|
REQUIRED(discriminator, MDUnsignedField, (0, UINT32_MAX));
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DILexicalBlockFile,
|
|
(Context, scope.Val, file.Val, discriminator.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDINamespace:
|
|
/// ::= !DINamespace(scope: !0, file: !2, name: "SomeNamespace", line: 9)
|
|
bool LLParser::ParseDINamespace(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(scope, MDField, ); \
|
|
OPTIONAL(file, MDField, ); \
|
|
OPTIONAL(name, MDStringField, ); \
|
|
OPTIONAL(line, LineField, ); \
|
|
OPTIONAL(exportSymbols, MDBoolField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DINamespace,
|
|
(Context, scope.Val, file.Val, name.Val, line.Val, exportSymbols.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDIMacro:
|
|
/// ::= !DIMacro(macinfo: type, line: 9, name: "SomeMacro", value: "SomeValue")
|
|
bool LLParser::ParseDIMacro(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(type, DwarfMacinfoTypeField, ); \
|
|
REQUIRED(line, LineField, ); \
|
|
REQUIRED(name, MDStringField, ); \
|
|
OPTIONAL(value, MDStringField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DIMacro,
|
|
(Context, type.Val, line.Val, name.Val, value.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDIMacroFile:
|
|
/// ::= !DIMacroFile(line: 9, file: !2, nodes: !3)
|
|
bool LLParser::ParseDIMacroFile(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
OPTIONAL(type, DwarfMacinfoTypeField, (dwarf::DW_MACINFO_start_file)); \
|
|
REQUIRED(line, LineField, ); \
|
|
REQUIRED(file, MDField, ); \
|
|
OPTIONAL(nodes, MDField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DIMacroFile,
|
|
(Context, type.Val, line.Val, file.Val, nodes.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDIModule:
|
|
/// ::= !DIModule(scope: !0, name: "SomeModule", configMacros: "-DNDEBUG",
|
|
/// includePath: "/usr/include", isysroot: "/")
|
|
bool LLParser::ParseDIModule(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(scope, MDField, ); \
|
|
REQUIRED(name, MDStringField, ); \
|
|
OPTIONAL(configMacros, MDStringField, ); \
|
|
OPTIONAL(includePath, MDStringField, ); \
|
|
OPTIONAL(isysroot, MDStringField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DIModule, (Context, scope.Val, name.Val,
|
|
configMacros.Val, includePath.Val, isysroot.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDITemplateTypeParameter:
|
|
/// ::= !DITemplateTypeParameter(name: "Ty", type: !1)
|
|
bool LLParser::ParseDITemplateTypeParameter(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
OPTIONAL(name, MDStringField, ); \
|
|
REQUIRED(type, MDField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result =
|
|
GET_OR_DISTINCT(DITemplateTypeParameter, (Context, name.Val, type.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDITemplateValueParameter:
|
|
/// ::= !DITemplateValueParameter(tag: DW_TAG_template_value_parameter,
|
|
/// name: "V", type: !1, value: i32 7)
|
|
bool LLParser::ParseDITemplateValueParameter(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
OPTIONAL(tag, DwarfTagField, (dwarf::DW_TAG_template_value_parameter)); \
|
|
OPTIONAL(name, MDStringField, ); \
|
|
OPTIONAL(type, MDField, ); \
|
|
REQUIRED(value, MDField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DITemplateValueParameter,
|
|
(Context, tag.Val, name.Val, type.Val, value.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDIGlobalVariable:
|
|
/// ::= !DIGlobalVariable(scope: !0, name: "foo", linkageName: "foo",
|
|
/// file: !1, line: 7, type: !2, isLocal: false,
|
|
/// isDefinition: true, variable: i32* @foo,
|
|
/// declaration: !3, align: 8)
|
|
bool LLParser::ParseDIGlobalVariable(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(name, MDStringField, (/* AllowEmpty */ false)); \
|
|
OPTIONAL(scope, MDField, ); \
|
|
OPTIONAL(linkageName, MDStringField, ); \
|
|
OPTIONAL(file, MDField, ); \
|
|
OPTIONAL(line, LineField, ); \
|
|
OPTIONAL(type, MDField, ); \
|
|
OPTIONAL(isLocal, MDBoolField, ); \
|
|
OPTIONAL(isDefinition, MDBoolField, (true)); \
|
|
OPTIONAL(expr, MDField, ); \
|
|
OPTIONAL(declaration, MDField, ); \
|
|
OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX));
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DIGlobalVariable,
|
|
(Context, scope.Val, name.Val, linkageName.Val,
|
|
file.Val, line.Val, type.Val, isLocal.Val,
|
|
isDefinition.Val, expr.Val, declaration.Val,
|
|
align.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDILocalVariable:
|
|
/// ::= !DILocalVariable(arg: 7, scope: !0, name: "foo",
|
|
/// file: !1, line: 7, type: !2, arg: 2, flags: 7,
|
|
/// align: 8)
|
|
/// ::= !DILocalVariable(scope: !0, name: "foo",
|
|
/// file: !1, line: 7, type: !2, arg: 2, flags: 7,
|
|
/// align: 8)
|
|
bool LLParser::ParseDILocalVariable(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(scope, MDField, (/* AllowNull */ false)); \
|
|
OPTIONAL(name, MDStringField, ); \
|
|
OPTIONAL(arg, MDUnsignedField, (0, UINT16_MAX)); \
|
|
OPTIONAL(file, MDField, ); \
|
|
OPTIONAL(line, LineField, ); \
|
|
OPTIONAL(type, MDField, ); \
|
|
OPTIONAL(flags, DIFlagField, ); \
|
|
OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX));
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DILocalVariable,
|
|
(Context, scope.Val, name.Val, file.Val, line.Val,
|
|
type.Val, arg.Val, flags.Val, align.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDIExpression:
|
|
/// ::= !DIExpression(0, 7, -1)
|
|
bool LLParser::ParseDIExpression(MDNode *&Result, bool IsDistinct) {
|
|
assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name");
|
|
Lex.Lex();
|
|
|
|
if (ParseToken(lltok::lparen, "expected '(' here"))
|
|
return true;
|
|
|
|
SmallVector<uint64_t, 8> Elements;
|
|
if (Lex.getKind() != lltok::rparen)
|
|
do {
|
|
if (Lex.getKind() == lltok::DwarfOp) {
|
|
if (unsigned Op = dwarf::getOperationEncoding(Lex.getStrVal())) {
|
|
Lex.Lex();
|
|
Elements.push_back(Op);
|
|
continue;
|
|
}
|
|
return TokError(Twine("invalid DWARF op '") + Lex.getStrVal() + "'");
|
|
}
|
|
|
|
if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned())
|
|
return TokError("expected unsigned integer");
|
|
|
|
auto &U = Lex.getAPSIntVal();
|
|
if (U.ugt(UINT64_MAX))
|
|
return TokError("element too large, limit is " + Twine(UINT64_MAX));
|
|
Elements.push_back(U.getZExtValue());
|
|
Lex.Lex();
|
|
} while (EatIfPresent(lltok::comma));
|
|
|
|
if (ParseToken(lltok::rparen, "expected ')' here"))
|
|
return true;
|
|
|
|
Result = GET_OR_DISTINCT(DIExpression, (Context, Elements));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDIObjCProperty:
|
|
/// ::= !DIObjCProperty(name: "foo", file: !1, line: 7, setter: "setFoo",
|
|
/// getter: "getFoo", attributes: 7, type: !2)
|
|
bool LLParser::ParseDIObjCProperty(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
OPTIONAL(name, MDStringField, ); \
|
|
OPTIONAL(file, MDField, ); \
|
|
OPTIONAL(line, LineField, ); \
|
|
OPTIONAL(setter, MDStringField, ); \
|
|
OPTIONAL(getter, MDStringField, ); \
|
|
OPTIONAL(attributes, MDUnsignedField, (0, UINT32_MAX)); \
|
|
OPTIONAL(type, MDField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DIObjCProperty,
|
|
(Context, name.Val, file.Val, line.Val, setter.Val,
|
|
getter.Val, attributes.Val, type.Val));
|
|
return false;
|
|
}
|
|
|
|
/// ParseDIImportedEntity:
|
|
/// ::= !DIImportedEntity(tag: DW_TAG_imported_module, scope: !0, entity: !1,
|
|
/// line: 7, name: "foo")
|
|
bool LLParser::ParseDIImportedEntity(MDNode *&Result, bool IsDistinct) {
|
|
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
|
|
REQUIRED(tag, DwarfTagField, ); \
|
|
REQUIRED(scope, MDField, ); \
|
|
OPTIONAL(entity, MDField, ); \
|
|
OPTIONAL(line, LineField, ); \
|
|
OPTIONAL(name, MDStringField, );
|
|
PARSE_MD_FIELDS();
|
|
#undef VISIT_MD_FIELDS
|
|
|
|
Result = GET_OR_DISTINCT(DIImportedEntity, (Context, tag.Val, scope.Val,
|
|
entity.Val, line.Val, name.Val));
|
|
return false;
|
|
}
|
|
|
|
#undef PARSE_MD_FIELD
|
|
#undef NOP_FIELD
|
|
#undef REQUIRE_FIELD
|
|
#undef DECLARE_FIELD
|
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/// ParseMetadataAsValue
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/// ::= metadata i32 %local
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/// ::= metadata i32 @global
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/// ::= metadata i32 7
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/// ::= metadata !0
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/// ::= metadata !{...}
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/// ::= metadata !"string"
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bool LLParser::ParseMetadataAsValue(Value *&V, PerFunctionState &PFS) {
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// Note: the type 'metadata' has already been parsed.
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Metadata *MD;
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if (ParseMetadata(MD, &PFS))
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return true;
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V = MetadataAsValue::get(Context, MD);
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return false;
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}
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/// ParseValueAsMetadata
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/// ::= i32 %local
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/// ::= i32 @global
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/// ::= i32 7
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bool LLParser::ParseValueAsMetadata(Metadata *&MD, const Twine &TypeMsg,
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PerFunctionState *PFS) {
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Type *Ty;
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LocTy Loc;
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if (ParseType(Ty, TypeMsg, Loc))
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return true;
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if (Ty->isMetadataTy())
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return Error(Loc, "invalid metadata-value-metadata roundtrip");
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Value *V;
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if (ParseValue(Ty, V, PFS))
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return true;
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MD = ValueAsMetadata::get(V);
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return false;
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}
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/// ParseMetadata
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/// ::= i32 %local
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/// ::= i32 @global
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/// ::= i32 7
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/// ::= !42
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/// ::= !{...}
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/// ::= !"string"
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/// ::= !DILocation(...)
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bool LLParser::ParseMetadata(Metadata *&MD, PerFunctionState *PFS) {
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if (Lex.getKind() == lltok::MetadataVar) {
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MDNode *N;
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if (ParseSpecializedMDNode(N))
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return true;
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MD = N;
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return false;
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}
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// ValueAsMetadata:
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// <type> <value>
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if (Lex.getKind() != lltok::exclaim)
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return ParseValueAsMetadata(MD, "expected metadata operand", PFS);
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// '!'.
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assert(Lex.getKind() == lltok::exclaim && "Expected '!' here");
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Lex.Lex();
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// MDString:
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// ::= '!' STRINGCONSTANT
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if (Lex.getKind() == lltok::StringConstant) {
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MDString *S;
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if (ParseMDString(S))
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return true;
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MD = S;
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return false;
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}
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// MDNode:
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// !{ ... }
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// !7
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MDNode *N;
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if (ParseMDNodeTail(N))
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return true;
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MD = N;
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return false;
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}
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//===----------------------------------------------------------------------===//
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// Function Parsing.
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//===----------------------------------------------------------------------===//
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bool LLParser::ConvertValIDToValue(Type *Ty, ValID &ID, Value *&V,
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PerFunctionState *PFS) {
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if (Ty->isFunctionTy())
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return Error(ID.Loc, "functions are not values, refer to them as pointers");
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switch (ID.Kind) {
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case ValID::t_LocalID:
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if (!PFS) return Error(ID.Loc, "invalid use of function-local name");
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V = PFS->GetVal(ID.UIntVal, Ty, ID.Loc);
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return V == nullptr;
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case ValID::t_LocalName:
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if (!PFS) return Error(ID.Loc, "invalid use of function-local name");
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V = PFS->GetVal(ID.StrVal, Ty, ID.Loc);
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return V == nullptr;
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case ValID::t_InlineAsm: {
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if (!ID.FTy || !InlineAsm::Verify(ID.FTy, ID.StrVal2))
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return Error(ID.Loc, "invalid type for inline asm constraint string");
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V = InlineAsm::get(ID.FTy, ID.StrVal, ID.StrVal2, ID.UIntVal & 1,
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(ID.UIntVal >> 1) & 1,
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(InlineAsm::AsmDialect(ID.UIntVal >> 2)));
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return false;
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}
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case ValID::t_GlobalName:
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V = GetGlobalVal(ID.StrVal, Ty, ID.Loc);
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return V == nullptr;
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case ValID::t_GlobalID:
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V = GetGlobalVal(ID.UIntVal, Ty, ID.Loc);
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return V == nullptr;
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case ValID::t_APSInt:
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if (!Ty->isIntegerTy())
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return Error(ID.Loc, "integer constant must have integer type");
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ID.APSIntVal = ID.APSIntVal.extOrTrunc(Ty->getPrimitiveSizeInBits());
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V = ConstantInt::get(Context, ID.APSIntVal);
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return false;
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case ValID::t_APFloat:
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|
if (!Ty->isFloatingPointTy() ||
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!ConstantFP::isValueValidForType(Ty, ID.APFloatVal))
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return Error(ID.Loc, "floating point constant invalid for type");
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// The lexer has no type info, so builds all half, float, and double FP
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// constants as double. Fix this here. Long double does not need this.
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if (&ID.APFloatVal.getSemantics() == &APFloat::IEEEdouble()) {
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bool Ignored;
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if (Ty->isHalfTy())
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ID.APFloatVal.convert(APFloat::IEEEhalf(), APFloat::rmNearestTiesToEven,
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&Ignored);
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else if (Ty->isFloatTy())
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ID.APFloatVal.convert(APFloat::IEEEsingle(), APFloat::rmNearestTiesToEven,
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&Ignored);
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}
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V = ConstantFP::get(Context, ID.APFloatVal);
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if (V->getType() != Ty)
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return Error(ID.Loc, "floating point constant does not have type '" +
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getTypeString(Ty) + "'");
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return false;
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case ValID::t_Null:
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if (!Ty->isPointerTy())
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|
return Error(ID.Loc, "null must be a pointer type");
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V = ConstantPointerNull::get(cast<PointerType>(Ty));
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return false;
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case ValID::t_Undef:
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|
// FIXME: LabelTy should not be a first-class type.
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if (!Ty->isFirstClassType() || Ty->isLabelTy())
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return Error(ID.Loc, "invalid type for undef constant");
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V = UndefValue::get(Ty);
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return false;
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case ValID::t_EmptyArray:
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if (!Ty->isArrayTy() || cast<ArrayType>(Ty)->getNumElements() != 0)
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return Error(ID.Loc, "invalid empty array initializer");
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V = UndefValue::get(Ty);
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return false;
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case ValID::t_Zero:
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// FIXME: LabelTy should not be a first-class type.
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|
if (!Ty->isFirstClassType() || Ty->isLabelTy())
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return Error(ID.Loc, "invalid type for null constant");
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V = Constant::getNullValue(Ty);
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return false;
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case ValID::t_None:
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if (!Ty->isTokenTy())
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return Error(ID.Loc, "invalid type for none constant");
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V = Constant::getNullValue(Ty);
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return false;
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case ValID::t_Constant:
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if (ID.ConstantVal->getType() != Ty)
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return Error(ID.Loc, "constant expression type mismatch");
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V = ID.ConstantVal;
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return false;
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case ValID::t_ConstantStruct:
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case ValID::t_PackedConstantStruct:
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if (StructType *ST = dyn_cast<StructType>(Ty)) {
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if (ST->getNumElements() != ID.UIntVal)
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return Error(ID.Loc,
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"initializer with struct type has wrong # elements");
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if (ST->isPacked() != (ID.Kind == ValID::t_PackedConstantStruct))
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return Error(ID.Loc, "packed'ness of initializer and type don't match");
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// Verify that the elements are compatible with the structtype.
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for (unsigned i = 0, e = ID.UIntVal; i != e; ++i)
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if (ID.ConstantStructElts[i]->getType() != ST->getElementType(i))
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|
return Error(ID.Loc, "element " + Twine(i) +
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" of struct initializer doesn't match struct element type");
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V = ConstantStruct::get(
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ST, makeArrayRef(ID.ConstantStructElts.get(), ID.UIntVal));
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} else
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return Error(ID.Loc, "constant expression type mismatch");
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|
return false;
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}
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|
llvm_unreachable("Invalid ValID");
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|
}
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bool LLParser::parseConstantValue(Type *Ty, Constant *&C) {
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C = nullptr;
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ValID ID;
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auto Loc = Lex.getLoc();
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if (ParseValID(ID, /*PFS=*/nullptr))
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return true;
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|
switch (ID.Kind) {
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case ValID::t_APSInt:
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case ValID::t_APFloat:
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case ValID::t_Undef:
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case ValID::t_Constant:
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|
case ValID::t_ConstantStruct:
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|
case ValID::t_PackedConstantStruct: {
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Value *V;
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if (ConvertValIDToValue(Ty, ID, V, /*PFS=*/nullptr))
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return true;
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assert(isa<Constant>(V) && "Expected a constant value");
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C = cast<Constant>(V);
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return false;
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}
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default:
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|
return Error(Loc, "expected a constant value");
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|
}
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|
}
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bool LLParser::ParseValue(Type *Ty, Value *&V, PerFunctionState *PFS) {
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V = nullptr;
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|
ValID ID;
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return ParseValID(ID, PFS) || ConvertValIDToValue(Ty, ID, V, PFS);
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|
}
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|
|
|
bool LLParser::ParseTypeAndValue(Value *&V, PerFunctionState *PFS) {
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|
Type *Ty = nullptr;
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|
return ParseType(Ty) ||
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ParseValue(Ty, V, PFS);
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|
}
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|
|
bool LLParser::ParseTypeAndBasicBlock(BasicBlock *&BB, LocTy &Loc,
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|
PerFunctionState &PFS) {
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|
Value *V;
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|
Loc = Lex.getLoc();
|
|
if (ParseTypeAndValue(V, PFS)) return true;
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|
if (!isa<BasicBlock>(V))
|
|
return Error(Loc, "expected a basic block");
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|
BB = cast<BasicBlock>(V);
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|
return false;
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|
}
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|
|
/// FunctionHeader
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|
/// ::= OptionalLinkage OptionalVisibility OptionalCallingConv OptRetAttrs
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|
/// OptUnnamedAddr Type GlobalName '(' ArgList ')' OptFuncAttrs OptSection
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|
/// OptionalAlign OptGC OptionalPrefix OptionalPrologue OptPersonalityFn
|
|
bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) {
|
|
// Parse the linkage.
|
|
LocTy LinkageLoc = Lex.getLoc();
|
|
unsigned Linkage;
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|
|
|
unsigned Visibility;
|
|
unsigned DLLStorageClass;
|
|
AttrBuilder RetAttrs;
|
|
unsigned CC;
|
|
bool HasLinkage;
|
|
Type *RetType = nullptr;
|
|
LocTy RetTypeLoc = Lex.getLoc();
|
|
if (ParseOptionalLinkage(Linkage, HasLinkage, Visibility, DLLStorageClass) ||
|
|
ParseOptionalCallingConv(CC) || ParseOptionalReturnAttrs(RetAttrs) ||
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|
ParseType(RetType, RetTypeLoc, true /*void allowed*/))
|
|
return true;
|
|
|
|
// Verify that the linkage is ok.
|
|
switch ((GlobalValue::LinkageTypes)Linkage) {
|
|
case GlobalValue::ExternalLinkage:
|
|
break; // always ok.
|
|
case GlobalValue::ExternalWeakLinkage:
|
|
if (isDefine)
|
|
return Error(LinkageLoc, "invalid linkage for function definition");
|
|
break;
|
|
case GlobalValue::PrivateLinkage:
|
|
case GlobalValue::InternalLinkage:
|
|
case GlobalValue::AvailableExternallyLinkage:
|
|
case GlobalValue::LinkOnceAnyLinkage:
|
|
case GlobalValue::LinkOnceODRLinkage:
|
|
case GlobalValue::WeakAnyLinkage:
|
|
case GlobalValue::WeakODRLinkage:
|
|
if (!isDefine)
|
|
return Error(LinkageLoc, "invalid linkage for function declaration");
|
|
break;
|
|
case GlobalValue::AppendingLinkage:
|
|
case GlobalValue::CommonLinkage:
|
|
return Error(LinkageLoc, "invalid function linkage type");
|
|
}
|
|
|
|
if (!isValidVisibilityForLinkage(Visibility, Linkage))
|
|
return Error(LinkageLoc,
|
|
"symbol with local linkage must have default visibility");
|
|
|
|
if (!FunctionType::isValidReturnType(RetType))
|
|
return Error(RetTypeLoc, "invalid function return type");
|
|
|
|
LocTy NameLoc = Lex.getLoc();
|
|
|
|
std::string FunctionName;
|
|
if (Lex.getKind() == lltok::GlobalVar) {
|
|
FunctionName = Lex.getStrVal();
|
|
} else if (Lex.getKind() == lltok::GlobalID) { // @42 is ok.
|
|
unsigned NameID = Lex.getUIntVal();
|
|
|
|
if (NameID != NumberedVals.size())
|
|
return TokError("function expected to be numbered '%" +
|
|
Twine(NumberedVals.size()) + "'");
|
|
} else {
|
|
return TokError("expected function name");
|
|
}
|
|
|
|
Lex.Lex();
|
|
|
|
if (Lex.getKind() != lltok::lparen)
|
|
return TokError("expected '(' in function argument list");
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|
|
|
SmallVector<ArgInfo, 8> ArgList;
|
|
bool isVarArg;
|
|
AttrBuilder FuncAttrs;
|
|
std::vector<unsigned> FwdRefAttrGrps;
|
|
LocTy BuiltinLoc;
|
|
std::string Section;
|
|
unsigned Alignment;
|
|
std::string GC;
|
|
GlobalValue::UnnamedAddr UnnamedAddr = GlobalValue::UnnamedAddr::None;
|
|
LocTy UnnamedAddrLoc;
|
|
Constant *Prefix = nullptr;
|
|
Constant *Prologue = nullptr;
|
|
Constant *PersonalityFn = nullptr;
|
|
Comdat *C;
|
|
|
|
if (ParseArgumentList(ArgList, isVarArg) ||
|
|
ParseOptionalUnnamedAddr(UnnamedAddr) ||
|
|
ParseFnAttributeValuePairs(FuncAttrs, FwdRefAttrGrps, false,
|
|
BuiltinLoc) ||
|
|
(EatIfPresent(lltok::kw_section) &&
|
|
ParseStringConstant(Section)) ||
|
|
parseOptionalComdat(FunctionName, C) ||
|
|
ParseOptionalAlignment(Alignment) ||
|
|
(EatIfPresent(lltok::kw_gc) &&
|
|
ParseStringConstant(GC)) ||
|
|
(EatIfPresent(lltok::kw_prefix) &&
|
|
ParseGlobalTypeAndValue(Prefix)) ||
|
|
(EatIfPresent(lltok::kw_prologue) &&
|
|
ParseGlobalTypeAndValue(Prologue)) ||
|
|
(EatIfPresent(lltok::kw_personality) &&
|
|
ParseGlobalTypeAndValue(PersonalityFn)))
|
|
return true;
|
|
|
|
if (FuncAttrs.contains(Attribute::Builtin))
|
|
return Error(BuiltinLoc, "'builtin' attribute not valid on function");
|
|
|
|
// If the alignment was parsed as an attribute, move to the alignment field.
|
|
if (FuncAttrs.hasAlignmentAttr()) {
|
|
Alignment = FuncAttrs.getAlignment();
|
|
FuncAttrs.removeAttribute(Attribute::Alignment);
|
|
}
|
|
|
|
// Okay, if we got here, the function is syntactically valid. Convert types
|
|
// and do semantic checks.
|
|
std::vector<Type*> ParamTypeList;
|
|
SmallVector<AttributeSet, 8> Attrs;
|
|
|
|
if (RetAttrs.hasAttributes())
|
|
Attrs.push_back(AttributeSet::get(RetType->getContext(),
|
|
AttributeSet::ReturnIndex,
|
|
RetAttrs));
|
|
|
|
for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
|
|
ParamTypeList.push_back(ArgList[i].Ty);
|
|
if (ArgList[i].Attrs.hasAttributes(i + 1)) {
|
|
AttrBuilder B(ArgList[i].Attrs, i + 1);
|
|
Attrs.push_back(AttributeSet::get(RetType->getContext(), i + 1, B));
|
|
}
|
|
}
|
|
|
|
if (FuncAttrs.hasAttributes())
|
|
Attrs.push_back(AttributeSet::get(RetType->getContext(),
|
|
AttributeSet::FunctionIndex,
|
|
FuncAttrs));
|
|
|
|
AttributeSet PAL = AttributeSet::get(Context, Attrs);
|
|
|
|
if (PAL.hasAttribute(1, Attribute::StructRet) && !RetType->isVoidTy())
|
|
return Error(RetTypeLoc, "functions with 'sret' argument must return void");
|
|
|
|
FunctionType *FT =
|
|
FunctionType::get(RetType, ParamTypeList, isVarArg);
|
|
PointerType *PFT = PointerType::getUnqual(FT);
|
|
|
|
Fn = nullptr;
|
|
if (!FunctionName.empty()) {
|
|
// If this was a definition of a forward reference, remove the definition
|
|
// from the forward reference table and fill in the forward ref.
|
|
auto FRVI = ForwardRefVals.find(FunctionName);
|
|
if (FRVI != ForwardRefVals.end()) {
|
|
Fn = M->getFunction(FunctionName);
|
|
if (!Fn)
|
|
return Error(FRVI->second.second, "invalid forward reference to "
|
|
"function as global value!");
|
|
if (Fn->getType() != PFT)
|
|
return Error(FRVI->second.second, "invalid forward reference to "
|
|
"function '" + FunctionName + "' with wrong type!");
|
|
|
|
ForwardRefVals.erase(FRVI);
|
|
} else if ((Fn = M->getFunction(FunctionName))) {
|
|
// Reject redefinitions.
|
|
return Error(NameLoc, "invalid redefinition of function '" +
|
|
FunctionName + "'");
|
|
} else if (M->getNamedValue(FunctionName)) {
|
|
return Error(NameLoc, "redefinition of function '@" + FunctionName + "'");
|
|
}
|
|
|
|
} else {
|
|
// If this is a definition of a forward referenced function, make sure the
|
|
// types agree.
|
|
auto I = ForwardRefValIDs.find(NumberedVals.size());
|
|
if (I != ForwardRefValIDs.end()) {
|
|
Fn = cast<Function>(I->second.first);
|
|
if (Fn->getType() != PFT)
|
|
return Error(NameLoc, "type of definition and forward reference of '@" +
|
|
Twine(NumberedVals.size()) + "' disagree");
|
|
ForwardRefValIDs.erase(I);
|
|
}
|
|
}
|
|
|
|
if (!Fn)
|
|
Fn = Function::Create(FT, GlobalValue::ExternalLinkage, FunctionName, M);
|
|
else // Move the forward-reference to the correct spot in the module.
|
|
M->getFunctionList().splice(M->end(), M->getFunctionList(), Fn);
|
|
|
|
if (FunctionName.empty())
|
|
NumberedVals.push_back(Fn);
|
|
|
|
Fn->setLinkage((GlobalValue::LinkageTypes)Linkage);
|
|
Fn->setVisibility((GlobalValue::VisibilityTypes)Visibility);
|
|
Fn->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass);
|
|
Fn->setCallingConv(CC);
|
|
Fn->setAttributes(PAL);
|
|
Fn->setUnnamedAddr(UnnamedAddr);
|
|
Fn->setAlignment(Alignment);
|
|
Fn->setSection(Section);
|
|
Fn->setComdat(C);
|
|
Fn->setPersonalityFn(PersonalityFn);
|
|
if (!GC.empty()) Fn->setGC(GC);
|
|
Fn->setPrefixData(Prefix);
|
|
Fn->setPrologueData(Prologue);
|
|
ForwardRefAttrGroups[Fn] = FwdRefAttrGrps;
|
|
|
|
// Add all of the arguments we parsed to the function.
|
|
Function::arg_iterator ArgIt = Fn->arg_begin();
|
|
for (unsigned i = 0, e = ArgList.size(); i != e; ++i, ++ArgIt) {
|
|
// If the argument has a name, insert it into the argument symbol table.
|
|
if (ArgList[i].Name.empty()) continue;
|
|
|
|
// Set the name, if it conflicted, it will be auto-renamed.
|
|
ArgIt->setName(ArgList[i].Name);
|
|
|
|
if (ArgIt->getName() != ArgList[i].Name)
|
|
return Error(ArgList[i].Loc, "redefinition of argument '%" +
|
|
ArgList[i].Name + "'");
|
|
}
|
|
|
|
if (isDefine)
|
|
return false;
|
|
|
|
// Check the declaration has no block address forward references.
|
|
ValID ID;
|
|
if (FunctionName.empty()) {
|
|
ID.Kind = ValID::t_GlobalID;
|
|
ID.UIntVal = NumberedVals.size() - 1;
|
|
} else {
|
|
ID.Kind = ValID::t_GlobalName;
|
|
ID.StrVal = FunctionName;
|
|
}
|
|
auto Blocks = ForwardRefBlockAddresses.find(ID);
|
|
if (Blocks != ForwardRefBlockAddresses.end())
|
|
return Error(Blocks->first.Loc,
|
|
"cannot take blockaddress inside a declaration");
|
|
return false;
|
|
}
|
|
|
|
bool LLParser::PerFunctionState::resolveForwardRefBlockAddresses() {
|
|
ValID ID;
|
|
if (FunctionNumber == -1) {
|
|
ID.Kind = ValID::t_GlobalName;
|
|
ID.StrVal = F.getName();
|
|
} else {
|
|
ID.Kind = ValID::t_GlobalID;
|
|
ID.UIntVal = FunctionNumber;
|
|
}
|
|
|
|
auto Blocks = P.ForwardRefBlockAddresses.find(ID);
|
|
if (Blocks == P.ForwardRefBlockAddresses.end())
|
|
return false;
|
|
|
|
for (const auto &I : Blocks->second) {
|
|
const ValID &BBID = I.first;
|
|
GlobalValue *GV = I.second;
|
|
|
|
assert((BBID.Kind == ValID::t_LocalID || BBID.Kind == ValID::t_LocalName) &&
|
|
"Expected local id or name");
|
|
BasicBlock *BB;
|
|
if (BBID.Kind == ValID::t_LocalName)
|
|
BB = GetBB(BBID.StrVal, BBID.Loc);
|
|
else
|
|
BB = GetBB(BBID.UIntVal, BBID.Loc);
|
|
if (!BB)
|
|
return P.Error(BBID.Loc, "referenced value is not a basic block");
|
|
|
|
GV->replaceAllUsesWith(BlockAddress::get(&F, BB));
|
|
GV->eraseFromParent();
|
|
}
|
|
|
|
P.ForwardRefBlockAddresses.erase(Blocks);
|
|
return false;
|
|
}
|
|
|
|
/// ParseFunctionBody
|
|
/// ::= '{' BasicBlock+ UseListOrderDirective* '}'
|
|
bool LLParser::ParseFunctionBody(Function &Fn) {
|
|
if (Lex.getKind() != lltok::lbrace)
|
|
return TokError("expected '{' in function body");
|
|
Lex.Lex(); // eat the {.
|
|
|
|
int FunctionNumber = -1;
|
|
if (!Fn.hasName()) FunctionNumber = NumberedVals.size()-1;
|
|
|
|
PerFunctionState PFS(*this, Fn, FunctionNumber);
|
|
|
|
// Resolve block addresses and allow basic blocks to be forward-declared
|
|
// within this function.
|
|
if (PFS.resolveForwardRefBlockAddresses())
|
|
return true;
|
|
SaveAndRestore<PerFunctionState *> ScopeExit(BlockAddressPFS, &PFS);
|
|
|
|
// We need at least one basic block.
|
|
if (Lex.getKind() == lltok::rbrace || Lex.getKind() == lltok::kw_uselistorder)
|
|
return TokError("function body requires at least one basic block");
|
|
|
|
while (Lex.getKind() != lltok::rbrace &&
|
|
Lex.getKind() != lltok::kw_uselistorder)
|
|
if (ParseBasicBlock(PFS)) return true;
|
|
|
|
while (Lex.getKind() != lltok::rbrace)
|
|
if (ParseUseListOrder(&PFS))
|
|
return true;
|
|
|
|
// Eat the }.
|
|
Lex.Lex();
|
|
|
|
// Verify function is ok.
|
|
return PFS.FinishFunction();
|
|
}
|
|
|
|
/// ParseBasicBlock
|
|
/// ::= LabelStr? Instruction*
|
|
bool LLParser::ParseBasicBlock(PerFunctionState &PFS) {
|
|
// If this basic block starts out with a name, remember it.
|
|
std::string Name;
|
|
LocTy NameLoc = Lex.getLoc();
|
|
if (Lex.getKind() == lltok::LabelStr) {
|
|
Name = Lex.getStrVal();
|
|
Lex.Lex();
|
|
}
|
|
|
|
BasicBlock *BB = PFS.DefineBB(Name, NameLoc);
|
|
if (!BB)
|
|
return Error(NameLoc,
|
|
"unable to create block named '" + Name + "'");
|
|
|
|
std::string NameStr;
|
|
|
|
// Parse the instructions in this block until we get a terminator.
|
|
Instruction *Inst;
|
|
do {
|
|
// This instruction may have three possibilities for a name: a) none
|
|
// specified, b) name specified "%foo =", c) number specified: "%4 =".
|
|
LocTy NameLoc = Lex.getLoc();
|
|
int NameID = -1;
|
|
NameStr = "";
|
|
|
|
if (Lex.getKind() == lltok::LocalVarID) {
|
|
NameID = Lex.getUIntVal();
|
|
Lex.Lex();
|
|
if (ParseToken(lltok::equal, "expected '=' after instruction id"))
|
|
return true;
|
|
} else if (Lex.getKind() == lltok::LocalVar) {
|
|
NameStr = Lex.getStrVal();
|
|
Lex.Lex();
|
|
if (ParseToken(lltok::equal, "expected '=' after instruction name"))
|
|
return true;
|
|
}
|
|
|
|
switch (ParseInstruction(Inst, BB, PFS)) {
|
|
default: llvm_unreachable("Unknown ParseInstruction result!");
|
|
case InstError: return true;
|
|
case InstNormal:
|
|
BB->getInstList().push_back(Inst);
|
|
|
|
// With a normal result, we check to see if the instruction is followed by
|
|
// a comma and metadata.
|
|
if (EatIfPresent(lltok::comma))
|
|
if (ParseInstructionMetadata(*Inst))
|
|
return true;
|
|
break;
|
|
case InstExtraComma:
|
|
BB->getInstList().push_back(Inst);
|
|
|
|
// If the instruction parser ate an extra comma at the end of it, it
|
|
// *must* be followed by metadata.
|
|
if (ParseInstructionMetadata(*Inst))
|
|
return true;
|
|
break;
|
|
}
|
|
|
|
// Set the name on the instruction.
|
|
if (PFS.SetInstName(NameID, NameStr, NameLoc, Inst)) return true;
|
|
} while (!isa<TerminatorInst>(Inst));
|
|
|
|
return false;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Instruction Parsing.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// ParseInstruction - Parse one of the many different instructions.
|
|
///
|
|
int LLParser::ParseInstruction(Instruction *&Inst, BasicBlock *BB,
|
|
PerFunctionState &PFS) {
|
|
lltok::Kind Token = Lex.getKind();
|
|
if (Token == lltok::Eof)
|
|
return TokError("found end of file when expecting more instructions");
|
|
LocTy Loc = Lex.getLoc();
|
|
unsigned KeywordVal = Lex.getUIntVal();
|
|
Lex.Lex(); // Eat the keyword.
|
|
|
|
switch (Token) {
|
|
default: return Error(Loc, "expected instruction opcode");
|
|
// Terminator Instructions.
|
|
case lltok::kw_unreachable: Inst = new UnreachableInst(Context); return false;
|
|
case lltok::kw_ret: return ParseRet(Inst, BB, PFS);
|
|
case lltok::kw_br: return ParseBr(Inst, PFS);
|
|
case lltok::kw_switch: return ParseSwitch(Inst, PFS);
|
|
case lltok::kw_indirectbr: return ParseIndirectBr(Inst, PFS);
|
|
case lltok::kw_invoke: return ParseInvoke(Inst, PFS);
|
|
case lltok::kw_resume: return ParseResume(Inst, PFS);
|
|
case lltok::kw_cleanupret: return ParseCleanupRet(Inst, PFS);
|
|
case lltok::kw_catchret: return ParseCatchRet(Inst, PFS);
|
|
case lltok::kw_catchswitch: return ParseCatchSwitch(Inst, PFS);
|
|
case lltok::kw_catchpad: return ParseCatchPad(Inst, PFS);
|
|
case lltok::kw_cleanuppad: return ParseCleanupPad(Inst, PFS);
|
|
// Binary Operators.
|
|
case lltok::kw_add:
|
|
case lltok::kw_sub:
|
|
case lltok::kw_mul:
|
|
case lltok::kw_shl: {
|
|
bool NUW = EatIfPresent(lltok::kw_nuw);
|
|
bool NSW = EatIfPresent(lltok::kw_nsw);
|
|
if (!NUW) NUW = EatIfPresent(lltok::kw_nuw);
|
|
|
|
if (ParseArithmetic(Inst, PFS, KeywordVal, 1)) return true;
|
|
|
|
if (NUW) cast<BinaryOperator>(Inst)->setHasNoUnsignedWrap(true);
|
|
if (NSW) cast<BinaryOperator>(Inst)->setHasNoSignedWrap(true);
|
|
return false;
|
|
}
|
|
case lltok::kw_fadd:
|
|
case lltok::kw_fsub:
|
|
case lltok::kw_fmul:
|
|
case lltok::kw_fdiv:
|
|
case lltok::kw_frem: {
|
|
FastMathFlags FMF = EatFastMathFlagsIfPresent();
|
|
int Res = ParseArithmetic(Inst, PFS, KeywordVal, 2);
|
|
if (Res != 0)
|
|
return Res;
|
|
if (FMF.any())
|
|
Inst->setFastMathFlags(FMF);
|
|
return 0;
|
|
}
|
|
|
|
case lltok::kw_sdiv:
|
|
case lltok::kw_udiv:
|
|
case lltok::kw_lshr:
|
|
case lltok::kw_ashr: {
|
|
bool Exact = EatIfPresent(lltok::kw_exact);
|
|
|
|
if (ParseArithmetic(Inst, PFS, KeywordVal, 1)) return true;
|
|
if (Exact) cast<BinaryOperator>(Inst)->setIsExact(true);
|
|
return false;
|
|
}
|
|
|
|
case lltok::kw_urem:
|
|
case lltok::kw_srem: return ParseArithmetic(Inst, PFS, KeywordVal, 1);
|
|
case lltok::kw_and:
|
|
case lltok::kw_or:
|
|
case lltok::kw_xor: return ParseLogical(Inst, PFS, KeywordVal);
|
|
case lltok::kw_icmp: return ParseCompare(Inst, PFS, KeywordVal);
|
|
case lltok::kw_fcmp: {
|
|
FastMathFlags FMF = EatFastMathFlagsIfPresent();
|
|
int Res = ParseCompare(Inst, PFS, KeywordVal);
|
|
if (Res != 0)
|
|
return Res;
|
|
if (FMF.any())
|
|
Inst->setFastMathFlags(FMF);
|
|
return 0;
|
|
}
|
|
|
|
// Casts.
|
|
case lltok::kw_trunc:
|
|
case lltok::kw_zext:
|
|
case lltok::kw_sext:
|
|
case lltok::kw_fptrunc:
|
|
case lltok::kw_fpext:
|
|
case lltok::kw_bitcast:
|
|
case lltok::kw_addrspacecast:
|
|
case lltok::kw_uitofp:
|
|
case lltok::kw_sitofp:
|
|
case lltok::kw_fptoui:
|
|
case lltok::kw_fptosi:
|
|
case lltok::kw_inttoptr:
|
|
case lltok::kw_ptrtoint: return ParseCast(Inst, PFS, KeywordVal);
|
|
// Other.
|
|
case lltok::kw_select: return ParseSelect(Inst, PFS);
|
|
case lltok::kw_va_arg: return ParseVA_Arg(Inst, PFS);
|
|
case lltok::kw_extractelement: return ParseExtractElement(Inst, PFS);
|
|
case lltok::kw_insertelement: return ParseInsertElement(Inst, PFS);
|
|
case lltok::kw_shufflevector: return ParseShuffleVector(Inst, PFS);
|
|
case lltok::kw_phi: return ParsePHI(Inst, PFS);
|
|
case lltok::kw_landingpad: return ParseLandingPad(Inst, PFS);
|
|
// Call.
|
|
case lltok::kw_call: return ParseCall(Inst, PFS, CallInst::TCK_None);
|
|
case lltok::kw_tail: return ParseCall(Inst, PFS, CallInst::TCK_Tail);
|
|
case lltok::kw_musttail: return ParseCall(Inst, PFS, CallInst::TCK_MustTail);
|
|
case lltok::kw_notail: return ParseCall(Inst, PFS, CallInst::TCK_NoTail);
|
|
// Memory.
|
|
case lltok::kw_alloca: return ParseAlloc(Inst, PFS);
|
|
case lltok::kw_load: return ParseLoad(Inst, PFS);
|
|
case lltok::kw_store: return ParseStore(Inst, PFS);
|
|
case lltok::kw_cmpxchg: return ParseCmpXchg(Inst, PFS);
|
|
case lltok::kw_atomicrmw: return ParseAtomicRMW(Inst, PFS);
|
|
case lltok::kw_fence: return ParseFence(Inst, PFS);
|
|
case lltok::kw_getelementptr: return ParseGetElementPtr(Inst, PFS);
|
|
case lltok::kw_extractvalue: return ParseExtractValue(Inst, PFS);
|
|
case lltok::kw_insertvalue: return ParseInsertValue(Inst, PFS);
|
|
}
|
|
}
|
|
|
|
/// ParseCmpPredicate - Parse an integer or fp predicate, based on Kind.
|
|
bool LLParser::ParseCmpPredicate(unsigned &P, unsigned Opc) {
|
|
if (Opc == Instruction::FCmp) {
|
|
switch (Lex.getKind()) {
|
|
default: return TokError("expected fcmp predicate (e.g. 'oeq')");
|
|
case lltok::kw_oeq: P = CmpInst::FCMP_OEQ; break;
|
|
case lltok::kw_one: P = CmpInst::FCMP_ONE; break;
|
|
case lltok::kw_olt: P = CmpInst::FCMP_OLT; break;
|
|
case lltok::kw_ogt: P = CmpInst::FCMP_OGT; break;
|
|
case lltok::kw_ole: P = CmpInst::FCMP_OLE; break;
|
|
case lltok::kw_oge: P = CmpInst::FCMP_OGE; break;
|
|
case lltok::kw_ord: P = CmpInst::FCMP_ORD; break;
|
|
case lltok::kw_uno: P = CmpInst::FCMP_UNO; break;
|
|
case lltok::kw_ueq: P = CmpInst::FCMP_UEQ; break;
|
|
case lltok::kw_une: P = CmpInst::FCMP_UNE; break;
|
|
case lltok::kw_ult: P = CmpInst::FCMP_ULT; break;
|
|
case lltok::kw_ugt: P = CmpInst::FCMP_UGT; break;
|
|
case lltok::kw_ule: P = CmpInst::FCMP_ULE; break;
|
|
case lltok::kw_uge: P = CmpInst::FCMP_UGE; break;
|
|
case lltok::kw_true: P = CmpInst::FCMP_TRUE; break;
|
|
case lltok::kw_false: P = CmpInst::FCMP_FALSE; break;
|
|
}
|
|
} else {
|
|
switch (Lex.getKind()) {
|
|
default: return TokError("expected icmp predicate (e.g. 'eq')");
|
|
case lltok::kw_eq: P = CmpInst::ICMP_EQ; break;
|
|
case lltok::kw_ne: P = CmpInst::ICMP_NE; break;
|
|
case lltok::kw_slt: P = CmpInst::ICMP_SLT; break;
|
|
case lltok::kw_sgt: P = CmpInst::ICMP_SGT; break;
|
|
case lltok::kw_sle: P = CmpInst::ICMP_SLE; break;
|
|
case lltok::kw_sge: P = CmpInst::ICMP_SGE; break;
|
|
case lltok::kw_ult: P = CmpInst::ICMP_ULT; break;
|
|
case lltok::kw_ugt: P = CmpInst::ICMP_UGT; break;
|
|
case lltok::kw_ule: P = CmpInst::ICMP_ULE; break;
|
|
case lltok::kw_uge: P = CmpInst::ICMP_UGE; break;
|
|
}
|
|
}
|
|
Lex.Lex();
|
|
return false;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Terminator Instructions.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// ParseRet - Parse a return instruction.
|
|
/// ::= 'ret' void (',' !dbg, !1)*
|
|
/// ::= 'ret' TypeAndValue (',' !dbg, !1)*
|
|
bool LLParser::ParseRet(Instruction *&Inst, BasicBlock *BB,
|
|
PerFunctionState &PFS) {
|
|
SMLoc TypeLoc = Lex.getLoc();
|
|
Type *Ty = nullptr;
|
|
if (ParseType(Ty, true /*void allowed*/)) return true;
|
|
|
|
Type *ResType = PFS.getFunction().getReturnType();
|
|
|
|
if (Ty->isVoidTy()) {
|
|
if (!ResType->isVoidTy())
|
|
return Error(TypeLoc, "value doesn't match function result type '" +
|
|
getTypeString(ResType) + "'");
|
|
|
|
Inst = ReturnInst::Create(Context);
|
|
return false;
|
|
}
|
|
|
|
Value *RV;
|
|
if (ParseValue(Ty, RV, PFS)) return true;
|
|
|
|
if (ResType != RV->getType())
|
|
return Error(TypeLoc, "value doesn't match function result type '" +
|
|
getTypeString(ResType) + "'");
|
|
|
|
Inst = ReturnInst::Create(Context, RV);
|
|
return false;
|
|
}
|
|
|
|
/// ParseBr
|
|
/// ::= 'br' TypeAndValue
|
|
/// ::= 'br' TypeAndValue ',' TypeAndValue ',' TypeAndValue
|
|
bool LLParser::ParseBr(Instruction *&Inst, PerFunctionState &PFS) {
|
|
LocTy Loc, Loc2;
|
|
Value *Op0;
|
|
BasicBlock *Op1, *Op2;
|
|
if (ParseTypeAndValue(Op0, Loc, PFS)) return true;
|
|
|
|
if (BasicBlock *BB = dyn_cast<BasicBlock>(Op0)) {
|
|
Inst = BranchInst::Create(BB);
|
|
return false;
|
|
}
|
|
|
|
if (Op0->getType() != Type::getInt1Ty(Context))
|
|
return Error(Loc, "branch condition must have 'i1' type");
|
|
|
|
if (ParseToken(lltok::comma, "expected ',' after branch condition") ||
|
|
ParseTypeAndBasicBlock(Op1, Loc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after true destination") ||
|
|
ParseTypeAndBasicBlock(Op2, Loc2, PFS))
|
|
return true;
|
|
|
|
Inst = BranchInst::Create(Op1, Op2, Op0);
|
|
return false;
|
|
}
|
|
|
|
/// ParseSwitch
|
|
/// Instruction
|
|
/// ::= 'switch' TypeAndValue ',' TypeAndValue '[' JumpTable ']'
|
|
/// JumpTable
|
|
/// ::= (TypeAndValue ',' TypeAndValue)*
|
|
bool LLParser::ParseSwitch(Instruction *&Inst, PerFunctionState &PFS) {
|
|
LocTy CondLoc, BBLoc;
|
|
Value *Cond;
|
|
BasicBlock *DefaultBB;
|
|
if (ParseTypeAndValue(Cond, CondLoc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after switch condition") ||
|
|
ParseTypeAndBasicBlock(DefaultBB, BBLoc, PFS) ||
|
|
ParseToken(lltok::lsquare, "expected '[' with switch table"))
|
|
return true;
|
|
|
|
if (!Cond->getType()->isIntegerTy())
|
|
return Error(CondLoc, "switch condition must have integer type");
|
|
|
|
// Parse the jump table pairs.
|
|
SmallPtrSet<Value*, 32> SeenCases;
|
|
SmallVector<std::pair<ConstantInt*, BasicBlock*>, 32> Table;
|
|
while (Lex.getKind() != lltok::rsquare) {
|
|
Value *Constant;
|
|
BasicBlock *DestBB;
|
|
|
|
if (ParseTypeAndValue(Constant, CondLoc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after case value") ||
|
|
ParseTypeAndBasicBlock(DestBB, PFS))
|
|
return true;
|
|
|
|
if (!SeenCases.insert(Constant).second)
|
|
return Error(CondLoc, "duplicate case value in switch");
|
|
if (!isa<ConstantInt>(Constant))
|
|
return Error(CondLoc, "case value is not a constant integer");
|
|
|
|
Table.push_back(std::make_pair(cast<ConstantInt>(Constant), DestBB));
|
|
}
|
|
|
|
Lex.Lex(); // Eat the ']'.
|
|
|
|
SwitchInst *SI = SwitchInst::Create(Cond, DefaultBB, Table.size());
|
|
for (unsigned i = 0, e = Table.size(); i != e; ++i)
|
|
SI->addCase(Table[i].first, Table[i].second);
|
|
Inst = SI;
|
|
return false;
|
|
}
|
|
|
|
/// ParseIndirectBr
|
|
/// Instruction
|
|
/// ::= 'indirectbr' TypeAndValue ',' '[' LabelList ']'
|
|
bool LLParser::ParseIndirectBr(Instruction *&Inst, PerFunctionState &PFS) {
|
|
LocTy AddrLoc;
|
|
Value *Address;
|
|
if (ParseTypeAndValue(Address, AddrLoc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after indirectbr address") ||
|
|
ParseToken(lltok::lsquare, "expected '[' with indirectbr"))
|
|
return true;
|
|
|
|
if (!Address->getType()->isPointerTy())
|
|
return Error(AddrLoc, "indirectbr address must have pointer type");
|
|
|
|
// Parse the destination list.
|
|
SmallVector<BasicBlock*, 16> DestList;
|
|
|
|
if (Lex.getKind() != lltok::rsquare) {
|
|
BasicBlock *DestBB;
|
|
if (ParseTypeAndBasicBlock(DestBB, PFS))
|
|
return true;
|
|
DestList.push_back(DestBB);
|
|
|
|
while (EatIfPresent(lltok::comma)) {
|
|
if (ParseTypeAndBasicBlock(DestBB, PFS))
|
|
return true;
|
|
DestList.push_back(DestBB);
|
|
}
|
|
}
|
|
|
|
if (ParseToken(lltok::rsquare, "expected ']' at end of block list"))
|
|
return true;
|
|
|
|
IndirectBrInst *IBI = IndirectBrInst::Create(Address, DestList.size());
|
|
for (unsigned i = 0, e = DestList.size(); i != e; ++i)
|
|
IBI->addDestination(DestList[i]);
|
|
Inst = IBI;
|
|
return false;
|
|
}
|
|
|
|
/// ParseInvoke
|
|
/// ::= 'invoke' OptionalCallingConv OptionalAttrs Type Value ParamList
|
|
/// OptionalAttrs 'to' TypeAndValue 'unwind' TypeAndValue
|
|
bool LLParser::ParseInvoke(Instruction *&Inst, PerFunctionState &PFS) {
|
|
LocTy CallLoc = Lex.getLoc();
|
|
AttrBuilder RetAttrs, FnAttrs;
|
|
std::vector<unsigned> FwdRefAttrGrps;
|
|
LocTy NoBuiltinLoc;
|
|
unsigned CC;
|
|
Type *RetType = nullptr;
|
|
LocTy RetTypeLoc;
|
|
ValID CalleeID;
|
|
SmallVector<ParamInfo, 16> ArgList;
|
|
SmallVector<OperandBundleDef, 2> BundleList;
|
|
|
|
BasicBlock *NormalBB, *UnwindBB;
|
|
if (ParseOptionalCallingConv(CC) || ParseOptionalReturnAttrs(RetAttrs) ||
|
|
ParseType(RetType, RetTypeLoc, true /*void allowed*/) ||
|
|
ParseValID(CalleeID) || ParseParameterList(ArgList, PFS) ||
|
|
ParseFnAttributeValuePairs(FnAttrs, FwdRefAttrGrps, false,
|
|
NoBuiltinLoc) ||
|
|
ParseOptionalOperandBundles(BundleList, PFS) ||
|
|
ParseToken(lltok::kw_to, "expected 'to' in invoke") ||
|
|
ParseTypeAndBasicBlock(NormalBB, PFS) ||
|
|
ParseToken(lltok::kw_unwind, "expected 'unwind' in invoke") ||
|
|
ParseTypeAndBasicBlock(UnwindBB, PFS))
|
|
return true;
|
|
|
|
// If RetType is a non-function pointer type, then this is the short syntax
|
|
// for the call, which means that RetType is just the return type. Infer the
|
|
// rest of the function argument types from the arguments that are present.
|
|
FunctionType *Ty = dyn_cast<FunctionType>(RetType);
|
|
if (!Ty) {
|
|
// Pull out the types of all of the arguments...
|
|
std::vector<Type*> ParamTypes;
|
|
for (unsigned i = 0, e = ArgList.size(); i != e; ++i)
|
|
ParamTypes.push_back(ArgList[i].V->getType());
|
|
|
|
if (!FunctionType::isValidReturnType(RetType))
|
|
return Error(RetTypeLoc, "Invalid result type for LLVM function");
|
|
|
|
Ty = FunctionType::get(RetType, ParamTypes, false);
|
|
}
|
|
|
|
CalleeID.FTy = Ty;
|
|
|
|
// Look up the callee.
|
|
Value *Callee;
|
|
if (ConvertValIDToValue(PointerType::getUnqual(Ty), CalleeID, Callee, &PFS))
|
|
return true;
|
|
|
|
// Set up the Attribute for the function.
|
|
SmallVector<AttributeSet, 8> Attrs;
|
|
if (RetAttrs.hasAttributes())
|
|
Attrs.push_back(AttributeSet::get(RetType->getContext(),
|
|
AttributeSet::ReturnIndex,
|
|
RetAttrs));
|
|
|
|
SmallVector<Value*, 8> Args;
|
|
|
|
// Loop through FunctionType's arguments and ensure they are specified
|
|
// correctly. Also, gather any parameter attributes.
|
|
FunctionType::param_iterator I = Ty->param_begin();
|
|
FunctionType::param_iterator E = Ty->param_end();
|
|
for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
|
|
Type *ExpectedTy = nullptr;
|
|
if (I != E) {
|
|
ExpectedTy = *I++;
|
|
} else if (!Ty->isVarArg()) {
|
|
return Error(ArgList[i].Loc, "too many arguments specified");
|
|
}
|
|
|
|
if (ExpectedTy && ExpectedTy != ArgList[i].V->getType())
|
|
return Error(ArgList[i].Loc, "argument is not of expected type '" +
|
|
getTypeString(ExpectedTy) + "'");
|
|
Args.push_back(ArgList[i].V);
|
|
if (ArgList[i].Attrs.hasAttributes(i + 1)) {
|
|
AttrBuilder B(ArgList[i].Attrs, i + 1);
|
|
Attrs.push_back(AttributeSet::get(RetType->getContext(), i + 1, B));
|
|
}
|
|
}
|
|
|
|
if (I != E)
|
|
return Error(CallLoc, "not enough parameters specified for call");
|
|
|
|
if (FnAttrs.hasAttributes()) {
|
|
if (FnAttrs.hasAlignmentAttr())
|
|
return Error(CallLoc, "invoke instructions may not have an alignment");
|
|
|
|
Attrs.push_back(AttributeSet::get(RetType->getContext(),
|
|
AttributeSet::FunctionIndex,
|
|
FnAttrs));
|
|
}
|
|
|
|
// Finish off the Attribute and check them
|
|
AttributeSet PAL = AttributeSet::get(Context, Attrs);
|
|
|
|
InvokeInst *II =
|
|
InvokeInst::Create(Ty, Callee, NormalBB, UnwindBB, Args, BundleList);
|
|
II->setCallingConv(CC);
|
|
II->setAttributes(PAL);
|
|
ForwardRefAttrGroups[II] = FwdRefAttrGrps;
|
|
Inst = II;
|
|
return false;
|
|
}
|
|
|
|
/// ParseResume
|
|
/// ::= 'resume' TypeAndValue
|
|
bool LLParser::ParseResume(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *Exn; LocTy ExnLoc;
|
|
if (ParseTypeAndValue(Exn, ExnLoc, PFS))
|
|
return true;
|
|
|
|
ResumeInst *RI = ResumeInst::Create(Exn);
|
|
Inst = RI;
|
|
return false;
|
|
}
|
|
|
|
bool LLParser::ParseExceptionArgs(SmallVectorImpl<Value *> &Args,
|
|
PerFunctionState &PFS) {
|
|
if (ParseToken(lltok::lsquare, "expected '[' in catchpad/cleanuppad"))
|
|
return true;
|
|
|
|
while (Lex.getKind() != lltok::rsquare) {
|
|
// If this isn't the first argument, we need a comma.
|
|
if (!Args.empty() &&
|
|
ParseToken(lltok::comma, "expected ',' in argument list"))
|
|
return true;
|
|
|
|
// Parse the argument.
|
|
LocTy ArgLoc;
|
|
Type *ArgTy = nullptr;
|
|
if (ParseType(ArgTy, ArgLoc))
|
|
return true;
|
|
|
|
Value *V;
|
|
if (ArgTy->isMetadataTy()) {
|
|
if (ParseMetadataAsValue(V, PFS))
|
|
return true;
|
|
} else {
|
|
if (ParseValue(ArgTy, V, PFS))
|
|
return true;
|
|
}
|
|
Args.push_back(V);
|
|
}
|
|
|
|
Lex.Lex(); // Lex the ']'.
|
|
return false;
|
|
}
|
|
|
|
/// ParseCleanupRet
|
|
/// ::= 'cleanupret' from Value unwind ('to' 'caller' | TypeAndValue)
|
|
bool LLParser::ParseCleanupRet(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *CleanupPad = nullptr;
|
|
|
|
if (ParseToken(lltok::kw_from, "expected 'from' after cleanupret"))
|
|
return true;
|
|
|
|
if (ParseValue(Type::getTokenTy(Context), CleanupPad, PFS))
|
|
return true;
|
|
|
|
if (ParseToken(lltok::kw_unwind, "expected 'unwind' in cleanupret"))
|
|
return true;
|
|
|
|
BasicBlock *UnwindBB = nullptr;
|
|
if (Lex.getKind() == lltok::kw_to) {
|
|
Lex.Lex();
|
|
if (ParseToken(lltok::kw_caller, "expected 'caller' in cleanupret"))
|
|
return true;
|
|
} else {
|
|
if (ParseTypeAndBasicBlock(UnwindBB, PFS)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
Inst = CleanupReturnInst::Create(CleanupPad, UnwindBB);
|
|
return false;
|
|
}
|
|
|
|
/// ParseCatchRet
|
|
/// ::= 'catchret' from Parent Value 'to' TypeAndValue
|
|
bool LLParser::ParseCatchRet(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *CatchPad = nullptr;
|
|
|
|
if (ParseToken(lltok::kw_from, "expected 'from' after catchret"))
|
|
return true;
|
|
|
|
if (ParseValue(Type::getTokenTy(Context), CatchPad, PFS))
|
|
return true;
|
|
|
|
BasicBlock *BB;
|
|
if (ParseToken(lltok::kw_to, "expected 'to' in catchret") ||
|
|
ParseTypeAndBasicBlock(BB, PFS))
|
|
return true;
|
|
|
|
Inst = CatchReturnInst::Create(CatchPad, BB);
|
|
return false;
|
|
}
|
|
|
|
/// ParseCatchSwitch
|
|
/// ::= 'catchswitch' within Parent
|
|
bool LLParser::ParseCatchSwitch(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *ParentPad;
|
|
LocTy BBLoc;
|
|
|
|
if (ParseToken(lltok::kw_within, "expected 'within' after catchswitch"))
|
|
return true;
|
|
|
|
if (Lex.getKind() != lltok::kw_none && Lex.getKind() != lltok::LocalVar &&
|
|
Lex.getKind() != lltok::LocalVarID)
|
|
return TokError("expected scope value for catchswitch");
|
|
|
|
if (ParseValue(Type::getTokenTy(Context), ParentPad, PFS))
|
|
return true;
|
|
|
|
if (ParseToken(lltok::lsquare, "expected '[' with catchswitch labels"))
|
|
return true;
|
|
|
|
SmallVector<BasicBlock *, 32> Table;
|
|
do {
|
|
BasicBlock *DestBB;
|
|
if (ParseTypeAndBasicBlock(DestBB, PFS))
|
|
return true;
|
|
Table.push_back(DestBB);
|
|
} while (EatIfPresent(lltok::comma));
|
|
|
|
if (ParseToken(lltok::rsquare, "expected ']' after catchswitch labels"))
|
|
return true;
|
|
|
|
if (ParseToken(lltok::kw_unwind,
|
|
"expected 'unwind' after catchswitch scope"))
|
|
return true;
|
|
|
|
BasicBlock *UnwindBB = nullptr;
|
|
if (EatIfPresent(lltok::kw_to)) {
|
|
if (ParseToken(lltok::kw_caller, "expected 'caller' in catchswitch"))
|
|
return true;
|
|
} else {
|
|
if (ParseTypeAndBasicBlock(UnwindBB, PFS))
|
|
return true;
|
|
}
|
|
|
|
auto *CatchSwitch =
|
|
CatchSwitchInst::Create(ParentPad, UnwindBB, Table.size());
|
|
for (BasicBlock *DestBB : Table)
|
|
CatchSwitch->addHandler(DestBB);
|
|
Inst = CatchSwitch;
|
|
return false;
|
|
}
|
|
|
|
/// ParseCatchPad
|
|
/// ::= 'catchpad' ParamList 'to' TypeAndValue 'unwind' TypeAndValue
|
|
bool LLParser::ParseCatchPad(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *CatchSwitch = nullptr;
|
|
|
|
if (ParseToken(lltok::kw_within, "expected 'within' after catchpad"))
|
|
return true;
|
|
|
|
if (Lex.getKind() != lltok::LocalVar && Lex.getKind() != lltok::LocalVarID)
|
|
return TokError("expected scope value for catchpad");
|
|
|
|
if (ParseValue(Type::getTokenTy(Context), CatchSwitch, PFS))
|
|
return true;
|
|
|
|
SmallVector<Value *, 8> Args;
|
|
if (ParseExceptionArgs(Args, PFS))
|
|
return true;
|
|
|
|
Inst = CatchPadInst::Create(CatchSwitch, Args);
|
|
return false;
|
|
}
|
|
|
|
/// ParseCleanupPad
|
|
/// ::= 'cleanuppad' within Parent ParamList
|
|
bool LLParser::ParseCleanupPad(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *ParentPad = nullptr;
|
|
|
|
if (ParseToken(lltok::kw_within, "expected 'within' after cleanuppad"))
|
|
return true;
|
|
|
|
if (Lex.getKind() != lltok::kw_none && Lex.getKind() != lltok::LocalVar &&
|
|
Lex.getKind() != lltok::LocalVarID)
|
|
return TokError("expected scope value for cleanuppad");
|
|
|
|
if (ParseValue(Type::getTokenTy(Context), ParentPad, PFS))
|
|
return true;
|
|
|
|
SmallVector<Value *, 8> Args;
|
|
if (ParseExceptionArgs(Args, PFS))
|
|
return true;
|
|
|
|
Inst = CleanupPadInst::Create(ParentPad, Args);
|
|
return false;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Binary Operators.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// ParseArithmetic
|
|
/// ::= ArithmeticOps TypeAndValue ',' Value
|
|
///
|
|
/// If OperandType is 0, then any FP or integer operand is allowed. If it is 1,
|
|
/// then any integer operand is allowed, if it is 2, any fp operand is allowed.
|
|
bool LLParser::ParseArithmetic(Instruction *&Inst, PerFunctionState &PFS,
|
|
unsigned Opc, unsigned OperandType) {
|
|
LocTy Loc; Value *LHS, *RHS;
|
|
if (ParseTypeAndValue(LHS, Loc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' in arithmetic operation") ||
|
|
ParseValue(LHS->getType(), RHS, PFS))
|
|
return true;
|
|
|
|
bool Valid;
|
|
switch (OperandType) {
|
|
default: llvm_unreachable("Unknown operand type!");
|
|
case 0: // int or FP.
|
|
Valid = LHS->getType()->isIntOrIntVectorTy() ||
|
|
LHS->getType()->isFPOrFPVectorTy();
|
|
break;
|
|
case 1: Valid = LHS->getType()->isIntOrIntVectorTy(); break;
|
|
case 2: Valid = LHS->getType()->isFPOrFPVectorTy(); break;
|
|
}
|
|
|
|
if (!Valid)
|
|
return Error(Loc, "invalid operand type for instruction");
|
|
|
|
Inst = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS);
|
|
return false;
|
|
}
|
|
|
|
/// ParseLogical
|
|
/// ::= ArithmeticOps TypeAndValue ',' Value {
|
|
bool LLParser::ParseLogical(Instruction *&Inst, PerFunctionState &PFS,
|
|
unsigned Opc) {
|
|
LocTy Loc; Value *LHS, *RHS;
|
|
if (ParseTypeAndValue(LHS, Loc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' in logical operation") ||
|
|
ParseValue(LHS->getType(), RHS, PFS))
|
|
return true;
|
|
|
|
if (!LHS->getType()->isIntOrIntVectorTy())
|
|
return Error(Loc,"instruction requires integer or integer vector operands");
|
|
|
|
Inst = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS);
|
|
return false;
|
|
}
|
|
|
|
/// ParseCompare
|
|
/// ::= 'icmp' IPredicates TypeAndValue ',' Value
|
|
/// ::= 'fcmp' FPredicates TypeAndValue ',' Value
|
|
bool LLParser::ParseCompare(Instruction *&Inst, PerFunctionState &PFS,
|
|
unsigned Opc) {
|
|
// Parse the integer/fp comparison predicate.
|
|
LocTy Loc;
|
|
unsigned Pred;
|
|
Value *LHS, *RHS;
|
|
if (ParseCmpPredicate(Pred, Opc) ||
|
|
ParseTypeAndValue(LHS, Loc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after compare value") ||
|
|
ParseValue(LHS->getType(), RHS, PFS))
|
|
return true;
|
|
|
|
if (Opc == Instruction::FCmp) {
|
|
if (!LHS->getType()->isFPOrFPVectorTy())
|
|
return Error(Loc, "fcmp requires floating point operands");
|
|
Inst = new FCmpInst(CmpInst::Predicate(Pred), LHS, RHS);
|
|
} else {
|
|
assert(Opc == Instruction::ICmp && "Unknown opcode for CmpInst!");
|
|
if (!LHS->getType()->isIntOrIntVectorTy() &&
|
|
!LHS->getType()->getScalarType()->isPointerTy())
|
|
return Error(Loc, "icmp requires integer operands");
|
|
Inst = new ICmpInst(CmpInst::Predicate(Pred), LHS, RHS);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Other Instructions.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
|
/// ParseCast
|
|
/// ::= CastOpc TypeAndValue 'to' Type
|
|
bool LLParser::ParseCast(Instruction *&Inst, PerFunctionState &PFS,
|
|
unsigned Opc) {
|
|
LocTy Loc;
|
|
Value *Op;
|
|
Type *DestTy = nullptr;
|
|
if (ParseTypeAndValue(Op, Loc, PFS) ||
|
|
ParseToken(lltok::kw_to, "expected 'to' after cast value") ||
|
|
ParseType(DestTy))
|
|
return true;
|
|
|
|
if (!CastInst::castIsValid((Instruction::CastOps)Opc, Op, DestTy)) {
|
|
CastInst::castIsValid((Instruction::CastOps)Opc, Op, DestTy);
|
|
return Error(Loc, "invalid cast opcode for cast from '" +
|
|
getTypeString(Op->getType()) + "' to '" +
|
|
getTypeString(DestTy) + "'");
|
|
}
|
|
Inst = CastInst::Create((Instruction::CastOps)Opc, Op, DestTy);
|
|
return false;
|
|
}
|
|
|
|
/// ParseSelect
|
|
/// ::= 'select' TypeAndValue ',' TypeAndValue ',' TypeAndValue
|
|
bool LLParser::ParseSelect(Instruction *&Inst, PerFunctionState &PFS) {
|
|
LocTy Loc;
|
|
Value *Op0, *Op1, *Op2;
|
|
if (ParseTypeAndValue(Op0, Loc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after select condition") ||
|
|
ParseTypeAndValue(Op1, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after select value") ||
|
|
ParseTypeAndValue(Op2, PFS))
|
|
return true;
|
|
|
|
if (const char *Reason = SelectInst::areInvalidOperands(Op0, Op1, Op2))
|
|
return Error(Loc, Reason);
|
|
|
|
Inst = SelectInst::Create(Op0, Op1, Op2);
|
|
return false;
|
|
}
|
|
|
|
/// ParseVA_Arg
|
|
/// ::= 'va_arg' TypeAndValue ',' Type
|
|
bool LLParser::ParseVA_Arg(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *Op;
|
|
Type *EltTy = nullptr;
|
|
LocTy TypeLoc;
|
|
if (ParseTypeAndValue(Op, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after vaarg operand") ||
|
|
ParseType(EltTy, TypeLoc))
|
|
return true;
|
|
|
|
if (!EltTy->isFirstClassType())
|
|
return Error(TypeLoc, "va_arg requires operand with first class type");
|
|
|
|
Inst = new VAArgInst(Op, EltTy);
|
|
return false;
|
|
}
|
|
|
|
/// ParseExtractElement
|
|
/// ::= 'extractelement' TypeAndValue ',' TypeAndValue
|
|
bool LLParser::ParseExtractElement(Instruction *&Inst, PerFunctionState &PFS) {
|
|
LocTy Loc;
|
|
Value *Op0, *Op1;
|
|
if (ParseTypeAndValue(Op0, Loc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after extract value") ||
|
|
ParseTypeAndValue(Op1, PFS))
|
|
return true;
|
|
|
|
if (!ExtractElementInst::isValidOperands(Op0, Op1))
|
|
return Error(Loc, "invalid extractelement operands");
|
|
|
|
Inst = ExtractElementInst::Create(Op0, Op1);
|
|
return false;
|
|
}
|
|
|
|
/// ParseInsertElement
|
|
/// ::= 'insertelement' TypeAndValue ',' TypeAndValue ',' TypeAndValue
|
|
bool LLParser::ParseInsertElement(Instruction *&Inst, PerFunctionState &PFS) {
|
|
LocTy Loc;
|
|
Value *Op0, *Op1, *Op2;
|
|
if (ParseTypeAndValue(Op0, Loc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after insertelement value") ||
|
|
ParseTypeAndValue(Op1, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after insertelement value") ||
|
|
ParseTypeAndValue(Op2, PFS))
|
|
return true;
|
|
|
|
if (!InsertElementInst::isValidOperands(Op0, Op1, Op2))
|
|
return Error(Loc, "invalid insertelement operands");
|
|
|
|
Inst = InsertElementInst::Create(Op0, Op1, Op2);
|
|
return false;
|
|
}
|
|
|
|
/// ParseShuffleVector
|
|
/// ::= 'shufflevector' TypeAndValue ',' TypeAndValue ',' TypeAndValue
|
|
bool LLParser::ParseShuffleVector(Instruction *&Inst, PerFunctionState &PFS) {
|
|
LocTy Loc;
|
|
Value *Op0, *Op1, *Op2;
|
|
if (ParseTypeAndValue(Op0, Loc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after shuffle mask") ||
|
|
ParseTypeAndValue(Op1, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after shuffle value") ||
|
|
ParseTypeAndValue(Op2, PFS))
|
|
return true;
|
|
|
|
if (!ShuffleVectorInst::isValidOperands(Op0, Op1, Op2))
|
|
return Error(Loc, "invalid shufflevector operands");
|
|
|
|
Inst = new ShuffleVectorInst(Op0, Op1, Op2);
|
|
return false;
|
|
}
|
|
|
|
/// ParsePHI
|
|
/// ::= 'phi' Type '[' Value ',' Value ']' (',' '[' Value ',' Value ']')*
|
|
int LLParser::ParsePHI(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Type *Ty = nullptr; LocTy TypeLoc;
|
|
Value *Op0, *Op1;
|
|
|
|
if (ParseType(Ty, TypeLoc) ||
|
|
ParseToken(lltok::lsquare, "expected '[' in phi value list") ||
|
|
ParseValue(Ty, Op0, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after insertelement value") ||
|
|
ParseValue(Type::getLabelTy(Context), Op1, PFS) ||
|
|
ParseToken(lltok::rsquare, "expected ']' in phi value list"))
|
|
return true;
|
|
|
|
bool AteExtraComma = false;
|
|
SmallVector<std::pair<Value*, BasicBlock*>, 16> PHIVals;
|
|
|
|
while (true) {
|
|
PHIVals.push_back(std::make_pair(Op0, cast<BasicBlock>(Op1)));
|
|
|
|
if (!EatIfPresent(lltok::comma))
|
|
break;
|
|
|
|
if (Lex.getKind() == lltok::MetadataVar) {
|
|
AteExtraComma = true;
|
|
break;
|
|
}
|
|
|
|
if (ParseToken(lltok::lsquare, "expected '[' in phi value list") ||
|
|
ParseValue(Ty, Op0, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after insertelement value") ||
|
|
ParseValue(Type::getLabelTy(Context), Op1, PFS) ||
|
|
ParseToken(lltok::rsquare, "expected ']' in phi value list"))
|
|
return true;
|
|
}
|
|
|
|
if (!Ty->isFirstClassType())
|
|
return Error(TypeLoc, "phi node must have first class type");
|
|
|
|
PHINode *PN = PHINode::Create(Ty, PHIVals.size());
|
|
for (unsigned i = 0, e = PHIVals.size(); i != e; ++i)
|
|
PN->addIncoming(PHIVals[i].first, PHIVals[i].second);
|
|
Inst = PN;
|
|
return AteExtraComma ? InstExtraComma : InstNormal;
|
|
}
|
|
|
|
/// ParseLandingPad
|
|
/// ::= 'landingpad' Type 'personality' TypeAndValue 'cleanup'? Clause+
|
|
/// Clause
|
|
/// ::= 'catch' TypeAndValue
|
|
/// ::= 'filter'
|
|
/// ::= 'filter' TypeAndValue ( ',' TypeAndValue )*
|
|
bool LLParser::ParseLandingPad(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Type *Ty = nullptr; LocTy TyLoc;
|
|
|
|
if (ParseType(Ty, TyLoc))
|
|
return true;
|
|
|
|
std::unique_ptr<LandingPadInst> LP(LandingPadInst::Create(Ty, 0));
|
|
LP->setCleanup(EatIfPresent(lltok::kw_cleanup));
|
|
|
|
while (Lex.getKind() == lltok::kw_catch || Lex.getKind() == lltok::kw_filter){
|
|
LandingPadInst::ClauseType CT;
|
|
if (EatIfPresent(lltok::kw_catch))
|
|
CT = LandingPadInst::Catch;
|
|
else if (EatIfPresent(lltok::kw_filter))
|
|
CT = LandingPadInst::Filter;
|
|
else
|
|
return TokError("expected 'catch' or 'filter' clause type");
|
|
|
|
Value *V;
|
|
LocTy VLoc;
|
|
if (ParseTypeAndValue(V, VLoc, PFS))
|
|
return true;
|
|
|
|
// A 'catch' type expects a non-array constant. A filter clause expects an
|
|
// array constant.
|
|
if (CT == LandingPadInst::Catch) {
|
|
if (isa<ArrayType>(V->getType()))
|
|
Error(VLoc, "'catch' clause has an invalid type");
|
|
} else {
|
|
if (!isa<ArrayType>(V->getType()))
|
|
Error(VLoc, "'filter' clause has an invalid type");
|
|
}
|
|
|
|
Constant *CV = dyn_cast<Constant>(V);
|
|
if (!CV)
|
|
return Error(VLoc, "clause argument must be a constant");
|
|
LP->addClause(CV);
|
|
}
|
|
|
|
Inst = LP.release();
|
|
return false;
|
|
}
|
|
|
|
/// ParseCall
|
|
/// ::= 'call' OptionalFastMathFlags OptionalCallingConv
|
|
/// OptionalAttrs Type Value ParameterList OptionalAttrs
|
|
/// ::= 'tail' 'call' OptionalFastMathFlags OptionalCallingConv
|
|
/// OptionalAttrs Type Value ParameterList OptionalAttrs
|
|
/// ::= 'musttail' 'call' OptionalFastMathFlags OptionalCallingConv
|
|
/// OptionalAttrs Type Value ParameterList OptionalAttrs
|
|
/// ::= 'notail' 'call' OptionalFastMathFlags OptionalCallingConv
|
|
/// OptionalAttrs Type Value ParameterList OptionalAttrs
|
|
bool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS,
|
|
CallInst::TailCallKind TCK) {
|
|
AttrBuilder RetAttrs, FnAttrs;
|
|
std::vector<unsigned> FwdRefAttrGrps;
|
|
LocTy BuiltinLoc;
|
|
unsigned CC;
|
|
Type *RetType = nullptr;
|
|
LocTy RetTypeLoc;
|
|
ValID CalleeID;
|
|
SmallVector<ParamInfo, 16> ArgList;
|
|
SmallVector<OperandBundleDef, 2> BundleList;
|
|
LocTy CallLoc = Lex.getLoc();
|
|
|
|
if (TCK != CallInst::TCK_None &&
|
|
ParseToken(lltok::kw_call,
|
|
"expected 'tail call', 'musttail call', or 'notail call'"))
|
|
return true;
|
|
|
|
FastMathFlags FMF = EatFastMathFlagsIfPresent();
|
|
|
|
if (ParseOptionalCallingConv(CC) || ParseOptionalReturnAttrs(RetAttrs) ||
|
|
ParseType(RetType, RetTypeLoc, true /*void allowed*/) ||
|
|
ParseValID(CalleeID) ||
|
|
ParseParameterList(ArgList, PFS, TCK == CallInst::TCK_MustTail,
|
|
PFS.getFunction().isVarArg()) ||
|
|
ParseFnAttributeValuePairs(FnAttrs, FwdRefAttrGrps, false, BuiltinLoc) ||
|
|
ParseOptionalOperandBundles(BundleList, PFS))
|
|
return true;
|
|
|
|
if (FMF.any() && !RetType->isFPOrFPVectorTy())
|
|
return Error(CallLoc, "fast-math-flags specified for call without "
|
|
"floating-point scalar or vector return type");
|
|
|
|
// If RetType is a non-function pointer type, then this is the short syntax
|
|
// for the call, which means that RetType is just the return type. Infer the
|
|
// rest of the function argument types from the arguments that are present.
|
|
FunctionType *Ty = dyn_cast<FunctionType>(RetType);
|
|
if (!Ty) {
|
|
// Pull out the types of all of the arguments...
|
|
std::vector<Type*> ParamTypes;
|
|
for (unsigned i = 0, e = ArgList.size(); i != e; ++i)
|
|
ParamTypes.push_back(ArgList[i].V->getType());
|
|
|
|
if (!FunctionType::isValidReturnType(RetType))
|
|
return Error(RetTypeLoc, "Invalid result type for LLVM function");
|
|
|
|
Ty = FunctionType::get(RetType, ParamTypes, false);
|
|
}
|
|
|
|
CalleeID.FTy = Ty;
|
|
|
|
// Look up the callee.
|
|
Value *Callee;
|
|
if (ConvertValIDToValue(PointerType::getUnqual(Ty), CalleeID, Callee, &PFS))
|
|
return true;
|
|
|
|
// Set up the Attribute for the function.
|
|
SmallVector<AttributeSet, 8> Attrs;
|
|
if (RetAttrs.hasAttributes())
|
|
Attrs.push_back(AttributeSet::get(RetType->getContext(),
|
|
AttributeSet::ReturnIndex,
|
|
RetAttrs));
|
|
|
|
SmallVector<Value*, 8> Args;
|
|
|
|
// Loop through FunctionType's arguments and ensure they are specified
|
|
// correctly. Also, gather any parameter attributes.
|
|
FunctionType::param_iterator I = Ty->param_begin();
|
|
FunctionType::param_iterator E = Ty->param_end();
|
|
for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
|
|
Type *ExpectedTy = nullptr;
|
|
if (I != E) {
|
|
ExpectedTy = *I++;
|
|
} else if (!Ty->isVarArg()) {
|
|
return Error(ArgList[i].Loc, "too many arguments specified");
|
|
}
|
|
|
|
if (ExpectedTy && ExpectedTy != ArgList[i].V->getType())
|
|
return Error(ArgList[i].Loc, "argument is not of expected type '" +
|
|
getTypeString(ExpectedTy) + "'");
|
|
Args.push_back(ArgList[i].V);
|
|
if (ArgList[i].Attrs.hasAttributes(i + 1)) {
|
|
AttrBuilder B(ArgList[i].Attrs, i + 1);
|
|
Attrs.push_back(AttributeSet::get(RetType->getContext(), i + 1, B));
|
|
}
|
|
}
|
|
|
|
if (I != E)
|
|
return Error(CallLoc, "not enough parameters specified for call");
|
|
|
|
if (FnAttrs.hasAttributes()) {
|
|
if (FnAttrs.hasAlignmentAttr())
|
|
return Error(CallLoc, "call instructions may not have an alignment");
|
|
|
|
Attrs.push_back(AttributeSet::get(RetType->getContext(),
|
|
AttributeSet::FunctionIndex,
|
|
FnAttrs));
|
|
}
|
|
|
|
// Finish off the Attribute and check them
|
|
AttributeSet PAL = AttributeSet::get(Context, Attrs);
|
|
|
|
CallInst *CI = CallInst::Create(Ty, Callee, Args, BundleList);
|
|
CI->setTailCallKind(TCK);
|
|
CI->setCallingConv(CC);
|
|
if (FMF.any())
|
|
CI->setFastMathFlags(FMF);
|
|
CI->setAttributes(PAL);
|
|
ForwardRefAttrGroups[CI] = FwdRefAttrGrps;
|
|
Inst = CI;
|
|
return false;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Memory Instructions.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// ParseAlloc
|
|
/// ::= 'alloca' 'inalloca'? 'swifterror'? Type (',' TypeAndValue)?
|
|
/// (',' 'align' i32)?
|
|
int LLParser::ParseAlloc(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *Size = nullptr;
|
|
LocTy SizeLoc, TyLoc;
|
|
unsigned Alignment = 0;
|
|
Type *Ty = nullptr;
|
|
|
|
bool IsInAlloca = EatIfPresent(lltok::kw_inalloca);
|
|
bool IsSwiftError = EatIfPresent(lltok::kw_swifterror);
|
|
|
|
if (ParseType(Ty, TyLoc)) return true;
|
|
|
|
if (Ty->isFunctionTy() || !PointerType::isValidElementType(Ty))
|
|
return Error(TyLoc, "invalid type for alloca");
|
|
|
|
bool AteExtraComma = false;
|
|
if (EatIfPresent(lltok::comma)) {
|
|
if (Lex.getKind() == lltok::kw_align) {
|
|
if (ParseOptionalAlignment(Alignment)) return true;
|
|
} else if (Lex.getKind() == lltok::MetadataVar) {
|
|
AteExtraComma = true;
|
|
} else {
|
|
if (ParseTypeAndValue(Size, SizeLoc, PFS) ||
|
|
ParseOptionalCommaAlign(Alignment, AteExtraComma))
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (Size && !Size->getType()->isIntegerTy())
|
|
return Error(SizeLoc, "element count must have integer type");
|
|
|
|
AllocaInst *AI = new AllocaInst(Ty, Size, Alignment);
|
|
AI->setUsedWithInAlloca(IsInAlloca);
|
|
AI->setSwiftError(IsSwiftError);
|
|
Inst = AI;
|
|
return AteExtraComma ? InstExtraComma : InstNormal;
|
|
}
|
|
|
|
/// ParseLoad
|
|
/// ::= 'load' 'volatile'? TypeAndValue (',' 'align' i32)?
|
|
/// ::= 'load' 'atomic' 'volatile'? TypeAndValue
|
|
/// 'singlethread'? AtomicOrdering (',' 'align' i32)?
|
|
int LLParser::ParseLoad(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *Val; LocTy Loc;
|
|
unsigned Alignment = 0;
|
|
bool AteExtraComma = false;
|
|
bool isAtomic = false;
|
|
AtomicOrdering Ordering = AtomicOrdering::NotAtomic;
|
|
SynchronizationScope Scope = CrossThread;
|
|
|
|
if (Lex.getKind() == lltok::kw_atomic) {
|
|
isAtomic = true;
|
|
Lex.Lex();
|
|
}
|
|
|
|
bool isVolatile = false;
|
|
if (Lex.getKind() == lltok::kw_volatile) {
|
|
isVolatile = true;
|
|
Lex.Lex();
|
|
}
|
|
|
|
Type *Ty;
|
|
LocTy ExplicitTypeLoc = Lex.getLoc();
|
|
if (ParseType(Ty) ||
|
|
ParseToken(lltok::comma, "expected comma after load's type") ||
|
|
ParseTypeAndValue(Val, Loc, PFS) ||
|
|
ParseScopeAndOrdering(isAtomic, Scope, Ordering) ||
|
|
ParseOptionalCommaAlign(Alignment, AteExtraComma))
|
|
return true;
|
|
|
|
if (!Val->getType()->isPointerTy() || !Ty->isFirstClassType())
|
|
return Error(Loc, "load operand must be a pointer to a first class type");
|
|
if (isAtomic && !Alignment)
|
|
return Error(Loc, "atomic load must have explicit non-zero alignment");
|
|
if (Ordering == AtomicOrdering::Release ||
|
|
Ordering == AtomicOrdering::AcquireRelease)
|
|
return Error(Loc, "atomic load cannot use Release ordering");
|
|
|
|
if (Ty != cast<PointerType>(Val->getType())->getElementType())
|
|
return Error(ExplicitTypeLoc,
|
|
"explicit pointee type doesn't match operand's pointee type");
|
|
|
|
Inst = new LoadInst(Ty, Val, "", isVolatile, Alignment, Ordering, Scope);
|
|
return AteExtraComma ? InstExtraComma : InstNormal;
|
|
}
|
|
|
|
/// ParseStore
|
|
|
|
/// ::= 'store' 'volatile'? TypeAndValue ',' TypeAndValue (',' 'align' i32)?
|
|
/// ::= 'store' 'atomic' 'volatile'? TypeAndValue ',' TypeAndValue
|
|
/// 'singlethread'? AtomicOrdering (',' 'align' i32)?
|
|
int LLParser::ParseStore(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *Val, *Ptr; LocTy Loc, PtrLoc;
|
|
unsigned Alignment = 0;
|
|
bool AteExtraComma = false;
|
|
bool isAtomic = false;
|
|
AtomicOrdering Ordering = AtomicOrdering::NotAtomic;
|
|
SynchronizationScope Scope = CrossThread;
|
|
|
|
if (Lex.getKind() == lltok::kw_atomic) {
|
|
isAtomic = true;
|
|
Lex.Lex();
|
|
}
|
|
|
|
bool isVolatile = false;
|
|
if (Lex.getKind() == lltok::kw_volatile) {
|
|
isVolatile = true;
|
|
Lex.Lex();
|
|
}
|
|
|
|
if (ParseTypeAndValue(Val, Loc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after store operand") ||
|
|
ParseTypeAndValue(Ptr, PtrLoc, PFS) ||
|
|
ParseScopeAndOrdering(isAtomic, Scope, Ordering) ||
|
|
ParseOptionalCommaAlign(Alignment, AteExtraComma))
|
|
return true;
|
|
|
|
if (!Ptr->getType()->isPointerTy())
|
|
return Error(PtrLoc, "store operand must be a pointer");
|
|
if (!Val->getType()->isFirstClassType())
|
|
return Error(Loc, "store operand must be a first class value");
|
|
if (cast<PointerType>(Ptr->getType())->getElementType() != Val->getType())
|
|
return Error(Loc, "stored value and pointer type do not match");
|
|
if (isAtomic && !Alignment)
|
|
return Error(Loc, "atomic store must have explicit non-zero alignment");
|
|
if (Ordering == AtomicOrdering::Acquire ||
|
|
Ordering == AtomicOrdering::AcquireRelease)
|
|
return Error(Loc, "atomic store cannot use Acquire ordering");
|
|
|
|
Inst = new StoreInst(Val, Ptr, isVolatile, Alignment, Ordering, Scope);
|
|
return AteExtraComma ? InstExtraComma : InstNormal;
|
|
}
|
|
|
|
/// ParseCmpXchg
|
|
/// ::= 'cmpxchg' 'weak'? 'volatile'? TypeAndValue ',' TypeAndValue ','
|
|
/// TypeAndValue 'singlethread'? AtomicOrdering AtomicOrdering
|
|
int LLParser::ParseCmpXchg(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *Ptr, *Cmp, *New; LocTy PtrLoc, CmpLoc, NewLoc;
|
|
bool AteExtraComma = false;
|
|
AtomicOrdering SuccessOrdering = AtomicOrdering::NotAtomic;
|
|
AtomicOrdering FailureOrdering = AtomicOrdering::NotAtomic;
|
|
SynchronizationScope Scope = CrossThread;
|
|
bool isVolatile = false;
|
|
bool isWeak = false;
|
|
|
|
if (EatIfPresent(lltok::kw_weak))
|
|
isWeak = true;
|
|
|
|
if (EatIfPresent(lltok::kw_volatile))
|
|
isVolatile = true;
|
|
|
|
if (ParseTypeAndValue(Ptr, PtrLoc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after cmpxchg address") ||
|
|
ParseTypeAndValue(Cmp, CmpLoc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after cmpxchg cmp operand") ||
|
|
ParseTypeAndValue(New, NewLoc, PFS) ||
|
|
ParseScopeAndOrdering(true /*Always atomic*/, Scope, SuccessOrdering) ||
|
|
ParseOrdering(FailureOrdering))
|
|
return true;
|
|
|
|
if (SuccessOrdering == AtomicOrdering::Unordered ||
|
|
FailureOrdering == AtomicOrdering::Unordered)
|
|
return TokError("cmpxchg cannot be unordered");
|
|
if (isStrongerThan(FailureOrdering, SuccessOrdering))
|
|
return TokError("cmpxchg failure argument shall be no stronger than the "
|
|
"success argument");
|
|
if (FailureOrdering == AtomicOrdering::Release ||
|
|
FailureOrdering == AtomicOrdering::AcquireRelease)
|
|
return TokError(
|
|
"cmpxchg failure ordering cannot include release semantics");
|
|
if (!Ptr->getType()->isPointerTy())
|
|
return Error(PtrLoc, "cmpxchg operand must be a pointer");
|
|
if (cast<PointerType>(Ptr->getType())->getElementType() != Cmp->getType())
|
|
return Error(CmpLoc, "compare value and pointer type do not match");
|
|
if (cast<PointerType>(Ptr->getType())->getElementType() != New->getType())
|
|
return Error(NewLoc, "new value and pointer type do not match");
|
|
if (!New->getType()->isFirstClassType())
|
|
return Error(NewLoc, "cmpxchg operand must be a first class value");
|
|
AtomicCmpXchgInst *CXI = new AtomicCmpXchgInst(
|
|
Ptr, Cmp, New, SuccessOrdering, FailureOrdering, Scope);
|
|
CXI->setVolatile(isVolatile);
|
|
CXI->setWeak(isWeak);
|
|
Inst = CXI;
|
|
return AteExtraComma ? InstExtraComma : InstNormal;
|
|
}
|
|
|
|
/// ParseAtomicRMW
|
|
/// ::= 'atomicrmw' 'volatile'? BinOp TypeAndValue ',' TypeAndValue
|
|
/// 'singlethread'? AtomicOrdering
|
|
int LLParser::ParseAtomicRMW(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *Ptr, *Val; LocTy PtrLoc, ValLoc;
|
|
bool AteExtraComma = false;
|
|
AtomicOrdering Ordering = AtomicOrdering::NotAtomic;
|
|
SynchronizationScope Scope = CrossThread;
|
|
bool isVolatile = false;
|
|
AtomicRMWInst::BinOp Operation;
|
|
|
|
if (EatIfPresent(lltok::kw_volatile))
|
|
isVolatile = true;
|
|
|
|
switch (Lex.getKind()) {
|
|
default: return TokError("expected binary operation in atomicrmw");
|
|
case lltok::kw_xchg: Operation = AtomicRMWInst::Xchg; break;
|
|
case lltok::kw_add: Operation = AtomicRMWInst::Add; break;
|
|
case lltok::kw_sub: Operation = AtomicRMWInst::Sub; break;
|
|
case lltok::kw_and: Operation = AtomicRMWInst::And; break;
|
|
case lltok::kw_nand: Operation = AtomicRMWInst::Nand; break;
|
|
case lltok::kw_or: Operation = AtomicRMWInst::Or; break;
|
|
case lltok::kw_xor: Operation = AtomicRMWInst::Xor; break;
|
|
case lltok::kw_max: Operation = AtomicRMWInst::Max; break;
|
|
case lltok::kw_min: Operation = AtomicRMWInst::Min; break;
|
|
case lltok::kw_umax: Operation = AtomicRMWInst::UMax; break;
|
|
case lltok::kw_umin: Operation = AtomicRMWInst::UMin; break;
|
|
}
|
|
Lex.Lex(); // Eat the operation.
|
|
|
|
if (ParseTypeAndValue(Ptr, PtrLoc, PFS) ||
|
|
ParseToken(lltok::comma, "expected ',' after atomicrmw address") ||
|
|
ParseTypeAndValue(Val, ValLoc, PFS) ||
|
|
ParseScopeAndOrdering(true /*Always atomic*/, Scope, Ordering))
|
|
return true;
|
|
|
|
if (Ordering == AtomicOrdering::Unordered)
|
|
return TokError("atomicrmw cannot be unordered");
|
|
if (!Ptr->getType()->isPointerTy())
|
|
return Error(PtrLoc, "atomicrmw operand must be a pointer");
|
|
if (cast<PointerType>(Ptr->getType())->getElementType() != Val->getType())
|
|
return Error(ValLoc, "atomicrmw value and pointer type do not match");
|
|
if (!Val->getType()->isIntegerTy())
|
|
return Error(ValLoc, "atomicrmw operand must be an integer");
|
|
unsigned Size = Val->getType()->getPrimitiveSizeInBits();
|
|
if (Size < 8 || (Size & (Size - 1)))
|
|
return Error(ValLoc, "atomicrmw operand must be power-of-two byte-sized"
|
|
" integer");
|
|
|
|
AtomicRMWInst *RMWI =
|
|
new AtomicRMWInst(Operation, Ptr, Val, Ordering, Scope);
|
|
RMWI->setVolatile(isVolatile);
|
|
Inst = RMWI;
|
|
return AteExtraComma ? InstExtraComma : InstNormal;
|
|
}
|
|
|
|
/// ParseFence
|
|
/// ::= 'fence' 'singlethread'? AtomicOrdering
|
|
int LLParser::ParseFence(Instruction *&Inst, PerFunctionState &PFS) {
|
|
AtomicOrdering Ordering = AtomicOrdering::NotAtomic;
|
|
SynchronizationScope Scope = CrossThread;
|
|
if (ParseScopeAndOrdering(true /*Always atomic*/, Scope, Ordering))
|
|
return true;
|
|
|
|
if (Ordering == AtomicOrdering::Unordered)
|
|
return TokError("fence cannot be unordered");
|
|
if (Ordering == AtomicOrdering::Monotonic)
|
|
return TokError("fence cannot be monotonic");
|
|
|
|
Inst = new FenceInst(Context, Ordering, Scope);
|
|
return InstNormal;
|
|
}
|
|
|
|
/// ParseGetElementPtr
|
|
/// ::= 'getelementptr' 'inbounds'? TypeAndValue (',' TypeAndValue)*
|
|
int LLParser::ParseGetElementPtr(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *Ptr = nullptr;
|
|
Value *Val = nullptr;
|
|
LocTy Loc, EltLoc;
|
|
|
|
bool InBounds = EatIfPresent(lltok::kw_inbounds);
|
|
|
|
Type *Ty = nullptr;
|
|
LocTy ExplicitTypeLoc = Lex.getLoc();
|
|
if (ParseType(Ty) ||
|
|
ParseToken(lltok::comma, "expected comma after getelementptr's type") ||
|
|
ParseTypeAndValue(Ptr, Loc, PFS))
|
|
return true;
|
|
|
|
Type *BaseType = Ptr->getType();
|
|
PointerType *BasePointerType = dyn_cast<PointerType>(BaseType->getScalarType());
|
|
if (!BasePointerType)
|
|
return Error(Loc, "base of getelementptr must be a pointer");
|
|
|
|
if (Ty != BasePointerType->getElementType())
|
|
return Error(ExplicitTypeLoc,
|
|
"explicit pointee type doesn't match operand's pointee type");
|
|
|
|
SmallVector<Value*, 16> Indices;
|
|
bool AteExtraComma = false;
|
|
// GEP returns a vector of pointers if at least one of parameters is a vector.
|
|
// All vector parameters should have the same vector width.
|
|
unsigned GEPWidth = BaseType->isVectorTy() ?
|
|
BaseType->getVectorNumElements() : 0;
|
|
|
|
while (EatIfPresent(lltok::comma)) {
|
|
if (Lex.getKind() == lltok::MetadataVar) {
|
|
AteExtraComma = true;
|
|
break;
|
|
}
|
|
if (ParseTypeAndValue(Val, EltLoc, PFS)) return true;
|
|
if (!Val->getType()->getScalarType()->isIntegerTy())
|
|
return Error(EltLoc, "getelementptr index must be an integer");
|
|
|
|
if (Val->getType()->isVectorTy()) {
|
|
unsigned ValNumEl = Val->getType()->getVectorNumElements();
|
|
if (GEPWidth && GEPWidth != ValNumEl)
|
|
return Error(EltLoc,
|
|
"getelementptr vector index has a wrong number of elements");
|
|
GEPWidth = ValNumEl;
|
|
}
|
|
Indices.push_back(Val);
|
|
}
|
|
|
|
SmallPtrSet<Type*, 4> Visited;
|
|
if (!Indices.empty() && !Ty->isSized(&Visited))
|
|
return Error(Loc, "base element of getelementptr must be sized");
|
|
|
|
if (!GetElementPtrInst::getIndexedType(Ty, Indices))
|
|
return Error(Loc, "invalid getelementptr indices");
|
|
Inst = GetElementPtrInst::Create(Ty, Ptr, Indices);
|
|
if (InBounds)
|
|
cast<GetElementPtrInst>(Inst)->setIsInBounds(true);
|
|
return AteExtraComma ? InstExtraComma : InstNormal;
|
|
}
|
|
|
|
/// ParseExtractValue
|
|
/// ::= 'extractvalue' TypeAndValue (',' uint32)+
|
|
int LLParser::ParseExtractValue(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *Val; LocTy Loc;
|
|
SmallVector<unsigned, 4> Indices;
|
|
bool AteExtraComma;
|
|
if (ParseTypeAndValue(Val, Loc, PFS) ||
|
|
ParseIndexList(Indices, AteExtraComma))
|
|
return true;
|
|
|
|
if (!Val->getType()->isAggregateType())
|
|
return Error(Loc, "extractvalue operand must be aggregate type");
|
|
|
|
if (!ExtractValueInst::getIndexedType(Val->getType(), Indices))
|
|
return Error(Loc, "invalid indices for extractvalue");
|
|
Inst = ExtractValueInst::Create(Val, Indices);
|
|
return AteExtraComma ? InstExtraComma : InstNormal;
|
|
}
|
|
|
|
/// ParseInsertValue
|
|
/// ::= 'insertvalue' TypeAndValue ',' TypeAndValue (',' uint32)+
|
|
int LLParser::ParseInsertValue(Instruction *&Inst, PerFunctionState &PFS) {
|
|
Value *Val0, *Val1; LocTy Loc0, Loc1;
|
|
SmallVector<unsigned, 4> Indices;
|
|
bool AteExtraComma;
|
|
if (ParseTypeAndValue(Val0, Loc0, PFS) ||
|
|
ParseToken(lltok::comma, "expected comma after insertvalue operand") ||
|
|
ParseTypeAndValue(Val1, Loc1, PFS) ||
|
|
ParseIndexList(Indices, AteExtraComma))
|
|
return true;
|
|
|
|
if (!Val0->getType()->isAggregateType())
|
|
return Error(Loc0, "insertvalue operand must be aggregate type");
|
|
|
|
Type *IndexedType = ExtractValueInst::getIndexedType(Val0->getType(), Indices);
|
|
if (!IndexedType)
|
|
return Error(Loc0, "invalid indices for insertvalue");
|
|
if (IndexedType != Val1->getType())
|
|
return Error(Loc1, "insertvalue operand and field disagree in type: '" +
|
|
getTypeString(Val1->getType()) + "' instead of '" +
|
|
getTypeString(IndexedType) + "'");
|
|
Inst = InsertValueInst::Create(Val0, Val1, Indices);
|
|
return AteExtraComma ? InstExtraComma : InstNormal;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Embedded metadata.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// ParseMDNodeVector
|
|
/// ::= { Element (',' Element)* }
|
|
/// Element
|
|
/// ::= 'null' | TypeAndValue
|
|
bool LLParser::ParseMDNodeVector(SmallVectorImpl<Metadata *> &Elts) {
|
|
if (ParseToken(lltok::lbrace, "expected '{' here"))
|
|
return true;
|
|
|
|
// Check for an empty list.
|
|
if (EatIfPresent(lltok::rbrace))
|
|
return false;
|
|
|
|
do {
|
|
// Null is a special case since it is typeless.
|
|
if (EatIfPresent(lltok::kw_null)) {
|
|
Elts.push_back(nullptr);
|
|
continue;
|
|
}
|
|
|
|
Metadata *MD;
|
|
if (ParseMetadata(MD, nullptr))
|
|
return true;
|
|
Elts.push_back(MD);
|
|
} while (EatIfPresent(lltok::comma));
|
|
|
|
return ParseToken(lltok::rbrace, "expected end of metadata node");
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Use-list order directives.
|
|
//===----------------------------------------------------------------------===//
|
|
bool LLParser::sortUseListOrder(Value *V, ArrayRef<unsigned> Indexes,
|
|
SMLoc Loc) {
|
|
if (V->use_empty())
|
|
return Error(Loc, "value has no uses");
|
|
|
|
unsigned NumUses = 0;
|
|
SmallDenseMap<const Use *, unsigned, 16> Order;
|
|
for (const Use &U : V->uses()) {
|
|
if (++NumUses > Indexes.size())
|
|
break;
|
|
Order[&U] = Indexes[NumUses - 1];
|
|
}
|
|
if (NumUses < 2)
|
|
return Error(Loc, "value only has one use");
|
|
if (Order.size() != Indexes.size() || NumUses > Indexes.size())
|
|
return Error(Loc, "wrong number of indexes, expected " +
|
|
Twine(std::distance(V->use_begin(), V->use_end())));
|
|
|
|
V->sortUseList([&](const Use &L, const Use &R) {
|
|
return Order.lookup(&L) < Order.lookup(&R);
|
|
});
|
|
return false;
|
|
}
|
|
|
|
/// ParseUseListOrderIndexes
|
|
/// ::= '{' uint32 (',' uint32)+ '}'
|
|
bool LLParser::ParseUseListOrderIndexes(SmallVectorImpl<unsigned> &Indexes) {
|
|
SMLoc Loc = Lex.getLoc();
|
|
if (ParseToken(lltok::lbrace, "expected '{' here"))
|
|
return true;
|
|
if (Lex.getKind() == lltok::rbrace)
|
|
return Lex.Error("expected non-empty list of uselistorder indexes");
|
|
|
|
// Use Offset, Max, and IsOrdered to check consistency of indexes. The
|
|
// indexes should be distinct numbers in the range [0, size-1], and should
|
|
// not be in order.
|
|
unsigned Offset = 0;
|
|
unsigned Max = 0;
|
|
bool IsOrdered = true;
|
|
assert(Indexes.empty() && "Expected empty order vector");
|
|
do {
|
|
unsigned Index;
|
|
if (ParseUInt32(Index))
|
|
return true;
|
|
|
|
// Update consistency checks.
|
|
Offset += Index - Indexes.size();
|
|
Max = std::max(Max, Index);
|
|
IsOrdered &= Index == Indexes.size();
|
|
|
|
Indexes.push_back(Index);
|
|
} while (EatIfPresent(lltok::comma));
|
|
|
|
if (ParseToken(lltok::rbrace, "expected '}' here"))
|
|
return true;
|
|
|
|
if (Indexes.size() < 2)
|
|
return Error(Loc, "expected >= 2 uselistorder indexes");
|
|
if (Offset != 0 || Max >= Indexes.size())
|
|
return Error(Loc, "expected distinct uselistorder indexes in range [0, size)");
|
|
if (IsOrdered)
|
|
return Error(Loc, "expected uselistorder indexes to change the order");
|
|
|
|
return false;
|
|
}
|
|
|
|
/// ParseUseListOrder
|
|
/// ::= 'uselistorder' Type Value ',' UseListOrderIndexes
|
|
bool LLParser::ParseUseListOrder(PerFunctionState *PFS) {
|
|
SMLoc Loc = Lex.getLoc();
|
|
if (ParseToken(lltok::kw_uselistorder, "expected uselistorder directive"))
|
|
return true;
|
|
|
|
Value *V;
|
|
SmallVector<unsigned, 16> Indexes;
|
|
if (ParseTypeAndValue(V, PFS) ||
|
|
ParseToken(lltok::comma, "expected comma in uselistorder directive") ||
|
|
ParseUseListOrderIndexes(Indexes))
|
|
return true;
|
|
|
|
return sortUseListOrder(V, Indexes, Loc);
|
|
}
|
|
|
|
/// ParseUseListOrderBB
|
|
/// ::= 'uselistorder_bb' @foo ',' %bar ',' UseListOrderIndexes
|
|
bool LLParser::ParseUseListOrderBB() {
|
|
assert(Lex.getKind() == lltok::kw_uselistorder_bb);
|
|
SMLoc Loc = Lex.getLoc();
|
|
Lex.Lex();
|
|
|
|
ValID Fn, Label;
|
|
SmallVector<unsigned, 16> Indexes;
|
|
if (ParseValID(Fn) ||
|
|
ParseToken(lltok::comma, "expected comma in uselistorder_bb directive") ||
|
|
ParseValID(Label) ||
|
|
ParseToken(lltok::comma, "expected comma in uselistorder_bb directive") ||
|
|
ParseUseListOrderIndexes(Indexes))
|
|
return true;
|
|
|
|
// Check the function.
|
|
GlobalValue *GV;
|
|
if (Fn.Kind == ValID::t_GlobalName)
|
|
GV = M->getNamedValue(Fn.StrVal);
|
|
else if (Fn.Kind == ValID::t_GlobalID)
|
|
GV = Fn.UIntVal < NumberedVals.size() ? NumberedVals[Fn.UIntVal] : nullptr;
|
|
else
|
|
return Error(Fn.Loc, "expected function name in uselistorder_bb");
|
|
if (!GV)
|
|
return Error(Fn.Loc, "invalid function forward reference in uselistorder_bb");
|
|
auto *F = dyn_cast<Function>(GV);
|
|
if (!F)
|
|
return Error(Fn.Loc, "expected function name in uselistorder_bb");
|
|
if (F->isDeclaration())
|
|
return Error(Fn.Loc, "invalid declaration in uselistorder_bb");
|
|
|
|
// Check the basic block.
|
|
if (Label.Kind == ValID::t_LocalID)
|
|
return Error(Label.Loc, "invalid numeric label in uselistorder_bb");
|
|
if (Label.Kind != ValID::t_LocalName)
|
|
return Error(Label.Loc, "expected basic block name in uselistorder_bb");
|
|
Value *V = F->getValueSymbolTable()->lookup(Label.StrVal);
|
|
if (!V)
|
|
return Error(Label.Loc, "invalid basic block in uselistorder_bb");
|
|
if (!isa<BasicBlock>(V))
|
|
return Error(Label.Loc, "expected basic block in uselistorder_bb");
|
|
|
|
return sortUseListOrder(V, Indexes, Loc);
|
|
}
|