mirror of
https://github.com/revng/revng
synced 2026-06-21 14:07:57 +00:00
Alessandro Di Federico
7a045d0c0d
This commit does the following: * It drops `revamb-dump` and transforms all the passes it featured in passes that can be used directly from `opt`. * It rename `revamb` to `revng-lift`. * It introduces a script called `revng` which acts as a driver for the whole rev.ng project. It replaces `translate`, `revcc`, `csv-to-ld-options` and `revamb-dump`, since it offers an `opt` subcommand which allows to easily invoke all the analysis passes. * It makes the project a CMake package that can be easily used externally. * It allows to easily create libraries of analysis to use through `revng-opt`.
68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
/// \file collectnoreturn.cpp
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/// \brief Implementation of the pass to collect the list of noreturn basic
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/// blocks
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//
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// This file is distributed under the MIT License. See LICENSE.md for details.
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//
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// LLVM includes
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#include "llvm/IR/BasicBlock.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/IR/Module.h"
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// Local libraries includes
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#include "revng/Dump/CollectNoreturn.h"
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#include "revng/Support/CommandLine.h"
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using namespace llvm;
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using namespace llvm::cl;
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template<typename T>
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struct CompareByName {
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bool operator()(const T *LHS, const T *RHS) const {
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return LHS->getName() < RHS->getName();
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}
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};
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char CollectNoreturn::ID = 0;
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using RegisterCNR = RegisterPass<CollectNoreturn>;
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static RegisterCNR X("collect-noreturn", "Collect noreturn Pass", true, true);
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static opt<std::string> OutputPath("collect-noreturn-output",
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desc("Destination path for the Collect "
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"noreturn Pass"),
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value_desc("path"),
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cat(MainCategory));
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void CollectNoreturn::serialize(std::ostream &Output) {
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Output << "noreturn\n";
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for (BasicBlock *BB : NoreturnBBs)
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Output << BB->getName().data() << "\n";
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}
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bool CollectNoreturn::runOnModule(Module &M) {
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Function &F = *M.getFunction("root");
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NoreturnBBs.clear();
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for (BasicBlock &BB : F) {
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if (!BB.empty()) {
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TerminatorInst *Terminator = BB.getTerminator();
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if (Terminator->getMetadata("noreturn") != nullptr)
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NoreturnBBs.push_back(&BB);
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}
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}
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std::sort(NoreturnBBs.begin(),
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NoreturnBBs.end(),
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CompareByName<BasicBlock>());
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if (OutputPath.getNumOccurrences() == 1) {
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std::ofstream Output;
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serialize(pathToStream(OutputPath, Output));
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}
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return false;
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}
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