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86 lines
3.2 KiB
C++
86 lines
3.2 KiB
C++
//===- BitcodeWriterPass.cpp - Bitcode writing pass -----------------------===//
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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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// BitcodeWriterPass implementation.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Bitcode/BitcodeWriterPass.h"
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#include "llvm/Analysis/ModuleSummaryAnalysis.h"
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#include "llvm/Bitcode/BitcodeWriter.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/PassManager.h"
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#include "llvm/Pass.h"
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using namespace llvm;
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PreservedAnalyses BitcodeWriterPass::run(Module &M, ModuleAnalysisManager &AM) {
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const ModuleSummaryIndex *Index =
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EmitSummaryIndex ? &(AM.getResult<ModuleSummaryIndexAnalysis>(M))
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: nullptr;
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WriteBitcodeToFile(M, OS, ShouldPreserveUseListOrder, Index, EmitModuleHash);
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return PreservedAnalyses::all();
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}
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namespace {
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class WriteBitcodePass : public ModulePass {
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raw_ostream &OS; // raw_ostream to print on
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bool ShouldPreserveUseListOrder;
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bool EmitSummaryIndex;
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bool EmitModuleHash;
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public:
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static char ID; // Pass identification, replacement for typeid
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WriteBitcodePass() : ModulePass(ID), OS(dbgs()) {
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initializeWriteBitcodePassPass(*PassRegistry::getPassRegistry());
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}
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explicit WriteBitcodePass(raw_ostream &o, bool ShouldPreserveUseListOrder,
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bool EmitSummaryIndex, bool EmitModuleHash)
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: ModulePass(ID), OS(o),
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ShouldPreserveUseListOrder(ShouldPreserveUseListOrder),
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EmitSummaryIndex(EmitSummaryIndex), EmitModuleHash(EmitModuleHash) {
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initializeWriteBitcodePassPass(*PassRegistry::getPassRegistry());
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}
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StringRef getPassName() const override { return "Bitcode Writer"; }
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bool runOnModule(Module &M) override {
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const ModuleSummaryIndex *Index =
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EmitSummaryIndex
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? &(getAnalysis<ModuleSummaryIndexWrapperPass>().getIndex())
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: nullptr;
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WriteBitcodeToFile(M, OS, ShouldPreserveUseListOrder, Index,
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EmitModuleHash);
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return false;
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}
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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if (EmitSummaryIndex)
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AU.addRequired<ModuleSummaryIndexWrapperPass>();
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}
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};
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}
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char WriteBitcodePass::ID = 0;
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INITIALIZE_PASS_BEGIN(WriteBitcodePass, "write-bitcode", "Write Bitcode", false,
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true)
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INITIALIZE_PASS_DEPENDENCY(ModuleSummaryIndexWrapperPass)
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INITIALIZE_PASS_END(WriteBitcodePass, "write-bitcode", "Write Bitcode", false,
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true)
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ModulePass *llvm::createBitcodeWriterPass(raw_ostream &Str,
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bool ShouldPreserveUseListOrder,
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bool EmitSummaryIndex, bool EmitModuleHash) {
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return new WriteBitcodePass(Str, ShouldPreserveUseListOrder,
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EmitSummaryIndex, EmitModuleHash);
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}
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bool llvm::isBitcodeWriterPass(Pass *P) {
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return P->getPassID() == (llvm::AnalysisID)&WriteBitcodePass::ID;
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}
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