forked from OSchip/llvm-project
103 lines
3.0 KiB
C++
103 lines
3.0 KiB
C++
//===------ DumpModulePass.cpp ----------------------------------*- C++ -*-===//
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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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// Write a module to a file.
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//
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//===----------------------------------------------------------------------===//
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#include "polly/Support/DumpModulePass.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Pass.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/ToolOutputFile.h"
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#define DEBUG_TYPE "polly-dump-module"
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using namespace llvm;
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using namespace polly;
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namespace {
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static void runDumpModule(llvm::Module &M, StringRef Filename, bool IsSuffix) {
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std::string Dumpfile;
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if (IsSuffix) {
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StringRef ModuleName = M.getName();
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StringRef Stem = sys::path::stem(ModuleName);
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Dumpfile = (Twine(Stem) + Filename + ".ll").str();
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} else {
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Dumpfile = Filename.str();
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}
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LLVM_DEBUG(dbgs() << "Dumping module to " << Dumpfile << '\n');
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std::unique_ptr<ToolOutputFile> Out;
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std::error_code EC;
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Out.reset(new ToolOutputFile(Dumpfile, EC, sys::fs::OF_None));
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if (EC) {
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errs() << EC.message() << '\n';
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return;
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}
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M.print(Out->os(), nullptr);
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Out->keep();
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}
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class DumpModuleWrapperPass : public ModulePass {
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private:
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DumpModuleWrapperPass(const DumpModuleWrapperPass &) = delete;
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const DumpModuleWrapperPass &
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operator=(const DumpModuleWrapperPass &) = delete;
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std::string Filename;
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bool IsSuffix;
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public:
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static char ID;
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/// This constructor is used e.g. if using opt -polly-dump-module.
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///
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/// Provide a default suffix to not overwrite the original file.
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explicit DumpModuleWrapperPass()
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: ModulePass(ID), Filename("-dump"), IsSuffix(true) {}
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explicit DumpModuleWrapperPass(std::string Filename, bool IsSuffix)
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: ModulePass(ID), Filename(std::move(Filename)), IsSuffix(IsSuffix) {}
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/// @name ModulePass interface
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//@{
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virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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}
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virtual bool runOnModule(llvm::Module &M) override {
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runDumpModule(M, Filename, IsSuffix);
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return false;
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}
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//@}
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};
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char DumpModuleWrapperPass::ID;
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} // namespace
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ModulePass *polly::createDumpModuleWrapperPass(std::string Filename,
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bool IsSuffix) {
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return new DumpModuleWrapperPass(std::move(Filename), IsSuffix);
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}
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llvm::PreservedAnalyses DumpModulePass::run(llvm::Module &M,
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llvm::ModuleAnalysisManager &AM) {
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runDumpModule(M, Filename, IsSuffix);
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return PreservedAnalyses::all();
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}
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INITIALIZE_PASS_BEGIN(DumpModuleWrapperPass, "polly-dump-module",
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"Polly - Dump Module", false, false)
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INITIALIZE_PASS_END(DumpModuleWrapperPass, "polly-dump-module",
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"Polly - Dump Module", false, false)
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