forked from OSchip/llvm-project
302 lines
10 KiB
C++
302 lines
10 KiB
C++
//===-- LLVMContext.cpp - Implement LLVMContext ---------------------------===//
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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 implements LLVMContext, as a wrapper around the opaque
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// class LLVMContextImpl.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/LLVMContext.h"
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#include "LLVMContextImpl.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/DebugLoc.h"
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#include "llvm/IR/DiagnosticInfo.h"
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#include "llvm/IR/DiagnosticPrinter.h"
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#include "llvm/IR/Instruction.h"
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#include "llvm/IR/Metadata.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/SourceMgr.h"
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#include <cctype>
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using namespace llvm;
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static ManagedStatic<LLVMContext> GlobalContext;
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LLVMContext& llvm::getGlobalContext() {
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return *GlobalContext;
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}
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LLVMContext::LLVMContext() : pImpl(new LLVMContextImpl(*this)) {
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// Create the fixed metadata kinds. This is done in the same order as the
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// MD_* enum values so that they correspond.
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// Create the 'dbg' metadata kind.
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unsigned DbgID = getMDKindID("dbg");
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assert(DbgID == MD_dbg && "dbg kind id drifted"); (void)DbgID;
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// Create the 'tbaa' metadata kind.
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unsigned TBAAID = getMDKindID("tbaa");
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assert(TBAAID == MD_tbaa && "tbaa kind id drifted"); (void)TBAAID;
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// Create the 'prof' metadata kind.
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unsigned ProfID = getMDKindID("prof");
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assert(ProfID == MD_prof && "prof kind id drifted"); (void)ProfID;
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// Create the 'fpmath' metadata kind.
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unsigned FPAccuracyID = getMDKindID("fpmath");
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assert(FPAccuracyID == MD_fpmath && "fpmath kind id drifted");
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(void)FPAccuracyID;
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// Create the 'range' metadata kind.
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unsigned RangeID = getMDKindID("range");
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assert(RangeID == MD_range && "range kind id drifted");
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(void)RangeID;
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// Create the 'tbaa.struct' metadata kind.
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unsigned TBAAStructID = getMDKindID("tbaa.struct");
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assert(TBAAStructID == MD_tbaa_struct && "tbaa.struct kind id drifted");
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(void)TBAAStructID;
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// Create the 'invariant.load' metadata kind.
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unsigned InvariantLdId = getMDKindID("invariant.load");
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assert(InvariantLdId == MD_invariant_load && "invariant.load kind id drifted");
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(void)InvariantLdId;
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// Create the 'alias.scope' metadata kind.
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unsigned AliasScopeID = getMDKindID("alias.scope");
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assert(AliasScopeID == MD_alias_scope && "alias.scope kind id drifted");
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(void)AliasScopeID;
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// Create the 'noalias' metadata kind.
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unsigned NoAliasID = getMDKindID("noalias");
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assert(NoAliasID == MD_noalias && "noalias kind id drifted");
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(void)NoAliasID;
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// Create the 'nontemporal' metadata kind.
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unsigned NonTemporalID = getMDKindID("nontemporal");
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assert(NonTemporalID == MD_nontemporal && "nontemporal kind id drifted");
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(void)NonTemporalID;
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// Create the 'llvm.mem.parallel_loop_access' metadata kind.
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unsigned MemParallelLoopAccessID = getMDKindID("llvm.mem.parallel_loop_access");
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assert(MemParallelLoopAccessID == MD_mem_parallel_loop_access &&
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"mem_parallel_loop_access kind id drifted");
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(void)MemParallelLoopAccessID;
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// Create the 'nonnull' metadata kind.
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unsigned NonNullID = getMDKindID("nonnull");
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assert(NonNullID == MD_nonnull && "nonnull kind id drifted");
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(void)NonNullID;
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// Create the 'dereferenceable' metadata kind.
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unsigned DereferenceableID = getMDKindID("dereferenceable");
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assert(DereferenceableID == MD_dereferenceable &&
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"dereferenceable kind id drifted");
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(void)DereferenceableID;
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// Create the 'dereferenceable_or_null' metadata kind.
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unsigned DereferenceableOrNullID = getMDKindID("dereferenceable_or_null");
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assert(DereferenceableOrNullID == MD_dereferenceable_or_null &&
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"dereferenceable_or_null kind id drifted");
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(void)DereferenceableOrNullID;
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// Create the 'make.implicit' metadata kind.
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unsigned MakeImplicitID = getMDKindID("make.implicit");
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assert(MakeImplicitID == MD_make_implicit &&
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"make.implicit kind id drifted");
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(void)MakeImplicitID;
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// Create the 'unpredictable' metadata kind.
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unsigned UnpredictableID = getMDKindID("unpredictable");
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assert(UnpredictableID == MD_unpredictable &&
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"unpredictable kind id drifted");
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(void)UnpredictableID;
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// Create the 'invariant.group' metadata kind.
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unsigned InvariantGroupId = getMDKindID("invariant.group");
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assert(InvariantGroupId == MD_invariant_group &&
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"invariant.group kind id drifted");
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(void)InvariantGroupId;
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// Create the 'align' metadata kind.
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unsigned AlignID = getMDKindID("align");
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assert(AlignID == MD_align && "align kind id drifted");
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(void)AlignID;
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auto *DeoptEntry = pImpl->getOrInsertBundleTag("deopt");
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assert(DeoptEntry->second == LLVMContext::OB_deopt &&
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"deopt operand bundle id drifted!");
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(void)DeoptEntry;
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}
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LLVMContext::~LLVMContext() { delete pImpl; }
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void LLVMContext::addModule(Module *M) {
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pImpl->OwnedModules.insert(M);
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}
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void LLVMContext::removeModule(Module *M) {
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pImpl->OwnedModules.erase(M);
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}
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//===----------------------------------------------------------------------===//
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// Recoverable Backend Errors
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//===----------------------------------------------------------------------===//
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void LLVMContext::
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setInlineAsmDiagnosticHandler(InlineAsmDiagHandlerTy DiagHandler,
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void *DiagContext) {
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pImpl->InlineAsmDiagHandler = DiagHandler;
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pImpl->InlineAsmDiagContext = DiagContext;
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}
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/// getInlineAsmDiagnosticHandler - Return the diagnostic handler set by
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/// setInlineAsmDiagnosticHandler.
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LLVMContext::InlineAsmDiagHandlerTy
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LLVMContext::getInlineAsmDiagnosticHandler() const {
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return pImpl->InlineAsmDiagHandler;
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}
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/// getInlineAsmDiagnosticContext - Return the diagnostic context set by
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/// setInlineAsmDiagnosticHandler.
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void *LLVMContext::getInlineAsmDiagnosticContext() const {
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return pImpl->InlineAsmDiagContext;
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}
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void LLVMContext::setDiagnosticHandler(DiagnosticHandlerTy DiagnosticHandler,
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void *DiagnosticContext,
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bool RespectFilters) {
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pImpl->DiagnosticHandler = DiagnosticHandler;
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pImpl->DiagnosticContext = DiagnosticContext;
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pImpl->RespectDiagnosticFilters = RespectFilters;
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}
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LLVMContext::DiagnosticHandlerTy LLVMContext::getDiagnosticHandler() const {
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return pImpl->DiagnosticHandler;
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}
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void *LLVMContext::getDiagnosticContext() const {
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return pImpl->DiagnosticContext;
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}
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void LLVMContext::setYieldCallback(YieldCallbackTy Callback, void *OpaqueHandle)
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{
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pImpl->YieldCallback = Callback;
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pImpl->YieldOpaqueHandle = OpaqueHandle;
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}
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void LLVMContext::yield() {
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if (pImpl->YieldCallback)
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pImpl->YieldCallback(this, pImpl->YieldOpaqueHandle);
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}
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void LLVMContext::emitError(const Twine &ErrorStr) {
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diagnose(DiagnosticInfoInlineAsm(ErrorStr));
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}
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void LLVMContext::emitError(const Instruction *I, const Twine &ErrorStr) {
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assert (I && "Invalid instruction");
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diagnose(DiagnosticInfoInlineAsm(*I, ErrorStr));
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}
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static bool isDiagnosticEnabled(const DiagnosticInfo &DI) {
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// Optimization remarks are selective. They need to check whether the regexp
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// pattern, passed via one of the -pass-remarks* flags, matches the name of
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// the pass that is emitting the diagnostic. If there is no match, ignore the
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// diagnostic and return.
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switch (DI.getKind()) {
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case llvm::DK_OptimizationRemark:
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if (!cast<DiagnosticInfoOptimizationRemark>(DI).isEnabled())
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return false;
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break;
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case llvm::DK_OptimizationRemarkMissed:
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if (!cast<DiagnosticInfoOptimizationRemarkMissed>(DI).isEnabled())
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return false;
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break;
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case llvm::DK_OptimizationRemarkAnalysis:
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if (!cast<DiagnosticInfoOptimizationRemarkAnalysis>(DI).isEnabled())
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return false;
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break;
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case llvm::DK_OptimizationRemarkAnalysisFPCommute:
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if (!cast<DiagnosticInfoOptimizationRemarkAnalysisFPCommute>(DI)
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.isEnabled())
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return false;
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break;
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default:
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break;
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}
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return true;
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}
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static const char *getDiagnosticMessagePrefix(DiagnosticSeverity Severity) {
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switch (Severity) {
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case DS_Error:
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return "error";
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case DS_Warning:
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return "warning";
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case DS_Remark:
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return "remark";
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case DS_Note:
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return "note";
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}
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llvm_unreachable("Unknown DiagnosticSeverity");
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}
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void LLVMContext::diagnose(const DiagnosticInfo &DI) {
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// If there is a report handler, use it.
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if (pImpl->DiagnosticHandler) {
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if (!pImpl->RespectDiagnosticFilters || isDiagnosticEnabled(DI))
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pImpl->DiagnosticHandler(DI, pImpl->DiagnosticContext);
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return;
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}
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if (!isDiagnosticEnabled(DI))
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return;
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// Otherwise, print the message with a prefix based on the severity.
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DiagnosticPrinterRawOStream DP(errs());
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errs() << getDiagnosticMessagePrefix(DI.getSeverity()) << ": ";
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DI.print(DP);
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errs() << "\n";
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if (DI.getSeverity() == DS_Error)
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exit(1);
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}
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void LLVMContext::emitError(unsigned LocCookie, const Twine &ErrorStr) {
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diagnose(DiagnosticInfoInlineAsm(LocCookie, ErrorStr));
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}
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//===----------------------------------------------------------------------===//
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// Metadata Kind Uniquing
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//===----------------------------------------------------------------------===//
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/// Return a unique non-zero ID for the specified metadata kind.
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unsigned LLVMContext::getMDKindID(StringRef Name) const {
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// If this is new, assign it its ID.
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return pImpl->CustomMDKindNames.insert(
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std::make_pair(
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Name, pImpl->CustomMDKindNames.size()))
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.first->second;
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}
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/// getHandlerNames - Populate client-supplied smallvector using custom
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/// metadata name and ID.
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void LLVMContext::getMDKindNames(SmallVectorImpl<StringRef> &Names) const {
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Names.resize(pImpl->CustomMDKindNames.size());
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for (StringMap<unsigned>::const_iterator I = pImpl->CustomMDKindNames.begin(),
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E = pImpl->CustomMDKindNames.end(); I != E; ++I)
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Names[I->second] = I->first();
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}
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void LLVMContext::getOperandBundleTags(SmallVectorImpl<StringRef> &Tags) const {
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pImpl->getOperandBundleTags(Tags);
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}
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uint32_t LLVMContext::getOperandBundleTagID(StringRef Tag) const {
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return pImpl->getOperandBundleTagID(Tag);
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}
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