forked from OSchip/llvm-project
332 lines
10 KiB
C++
332 lines
10 KiB
C++
//===-- LLVMContext.cpp - Implement LLVMContext ---------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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/ADT/SmallVector.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/Twine.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/Metadata.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/RemarkStreamer.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cassert>
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#include <cstdlib>
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#include <string>
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#include <utility>
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using namespace llvm;
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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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std::pair<unsigned, StringRef> MDKinds[] = {
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#define LLVM_FIXED_MD_KIND(EnumID, Name, Value) {EnumID, Name},
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#include "llvm/IR/FixedMetadataKinds.def"
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#undef LLVM_FIXED_MD_KIND
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};
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for (auto &MDKind : MDKinds) {
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unsigned ID = getMDKindID(MDKind.second);
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assert(ID == MDKind.first && "metadata kind id drifted");
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(void)ID;
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}
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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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auto *FuncletEntry = pImpl->getOrInsertBundleTag("funclet");
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assert(FuncletEntry->second == LLVMContext::OB_funclet &&
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"funclet operand bundle id drifted!");
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(void)FuncletEntry;
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auto *GCTransitionEntry = pImpl->getOrInsertBundleTag("gc-transition");
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assert(GCTransitionEntry->second == LLVMContext::OB_gc_transition &&
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"gc-transition operand bundle id drifted!");
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(void)GCTransitionEntry;
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auto *CFGuardTargetEntry = pImpl->getOrInsertBundleTag("cfguardtarget");
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assert(CFGuardTargetEntry->second == LLVMContext::OB_cfguardtarget &&
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"cfguardtarget operand bundle id drifted!");
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(void)CFGuardTargetEntry;
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SyncScope::ID SingleThreadSSID =
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pImpl->getOrInsertSyncScopeID("singlethread");
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assert(SingleThreadSSID == SyncScope::SingleThread &&
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"singlethread synchronization scope ID drifted!");
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(void)SingleThreadSSID;
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SyncScope::ID SystemSSID =
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pImpl->getOrInsertSyncScopeID("");
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assert(SystemSSID == SyncScope::System &&
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"system synchronization scope ID drifted!");
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(void)SystemSSID;
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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::setDiagnosticHandlerCallBack(
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DiagnosticHandler::DiagnosticHandlerTy DiagnosticHandler,
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void *DiagnosticContext, bool RespectFilters) {
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pImpl->DiagHandler->DiagHandlerCallback = DiagnosticHandler;
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pImpl->DiagHandler->DiagnosticContext = DiagnosticContext;
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pImpl->RespectDiagnosticFilters = RespectFilters;
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}
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void LLVMContext::setDiagnosticHandler(std::unique_ptr<DiagnosticHandler> &&DH,
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bool RespectFilters) {
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pImpl->DiagHandler = std::move(DH);
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pImpl->RespectDiagnosticFilters = RespectFilters;
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}
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void LLVMContext::setDiagnosticsHotnessRequested(bool Requested) {
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pImpl->DiagnosticsHotnessRequested = Requested;
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}
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bool LLVMContext::getDiagnosticsHotnessRequested() const {
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return pImpl->DiagnosticsHotnessRequested;
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}
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void LLVMContext::setDiagnosticsHotnessThreshold(uint64_t Threshold) {
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pImpl->DiagnosticsHotnessThreshold = Threshold;
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}
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uint64_t LLVMContext::getDiagnosticsHotnessThreshold() const {
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return pImpl->DiagnosticsHotnessThreshold;
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}
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RemarkStreamer *LLVMContext::getRemarkStreamer() {
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return pImpl->RemarkDiagStreamer.get();
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}
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const RemarkStreamer *LLVMContext::getRemarkStreamer() const {
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return const_cast<LLVMContext *>(this)->getRemarkStreamer();
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}
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void LLVMContext::setRemarkStreamer(
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std::unique_ptr<RemarkStreamer> RemarkStreamer) {
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pImpl->RemarkDiagStreamer = std::move(RemarkStreamer);
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}
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DiagnosticHandler::DiagnosticHandlerTy
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LLVMContext::getDiagnosticHandlerCallBack() const {
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return pImpl->DiagHandler->DiagHandlerCallback;
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}
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void *LLVMContext::getDiagnosticContext() const {
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return pImpl->DiagHandler->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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//
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// Also noisy remarks are only enabled if we have hotness information to sort
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// them.
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if (auto *Remark = dyn_cast<DiagnosticInfoOptimizationBase>(&DI))
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return Remark->isEnabled() &&
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(!Remark->isVerbose() || Remark->getHotness());
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return true;
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}
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const char *
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LLVMContext::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 (auto *OptDiagBase = dyn_cast<DiagnosticInfoOptimizationBase>(&DI))
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if (RemarkStreamer *RS = getRemarkStreamer())
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RS->emit(*OptDiagBase);
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// If there is a report handler, use it.
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if (pImpl->DiagHandler &&
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(!pImpl->RespectDiagnosticFilters || isDiagnosticEnabled(DI)) &&
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pImpl->DiagHandler->handleDiagnostics(DI))
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return;
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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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SyncScope::ID LLVMContext::getOrInsertSyncScopeID(StringRef SSN) {
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return pImpl->getOrInsertSyncScopeID(SSN);
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}
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void LLVMContext::getSyncScopeNames(SmallVectorImpl<StringRef> &SSNs) const {
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pImpl->getSyncScopeNames(SSNs);
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}
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void LLVMContext::setGC(const Function &Fn, std::string GCName) {
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auto It = pImpl->GCNames.find(&Fn);
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if (It == pImpl->GCNames.end()) {
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pImpl->GCNames.insert(std::make_pair(&Fn, std::move(GCName)));
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return;
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}
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It->second = std::move(GCName);
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}
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const std::string &LLVMContext::getGC(const Function &Fn) {
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return pImpl->GCNames[&Fn];
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}
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void LLVMContext::deleteGC(const Function &Fn) {
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pImpl->GCNames.erase(&Fn);
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}
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bool LLVMContext::shouldDiscardValueNames() const {
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return pImpl->DiscardValueNames;
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}
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bool LLVMContext::isODRUniquingDebugTypes() const { return !!pImpl->DITypeMap; }
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void LLVMContext::enableDebugTypeODRUniquing() {
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if (pImpl->DITypeMap)
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return;
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pImpl->DITypeMap.emplace();
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}
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void LLVMContext::disableDebugTypeODRUniquing() { pImpl->DITypeMap.reset(); }
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void LLVMContext::setDiscardValueNames(bool Discard) {
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pImpl->DiscardValueNames = Discard;
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}
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OptPassGate &LLVMContext::getOptPassGate() const {
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return pImpl->getOptPassGate();
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}
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void LLVMContext::setOptPassGate(OptPassGate& OPG) {
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pImpl->setOptPassGate(OPG);
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}
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const DiagnosticHandler *LLVMContext::getDiagHandlerPtr() const {
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return pImpl->DiagHandler.get();
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}
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std::unique_ptr<DiagnosticHandler> LLVMContext::getDiagnosticHandler() {
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return std::move(pImpl->DiagHandler);
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}
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