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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
//===- StackSafetyAnalysis.h - Stack memory safety analysis -----*- 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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// Stack Safety Analysis detects allocas and arguments with safe access.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_STACKSAFETYANALYSIS_H
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#define LLVM_ANALYSIS_STACKSAFETYANALYSIS_H
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#include "llvm/IR/PassManager.h"
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#include "llvm/Pass.h"
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namespace llvm {
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/// Interface to access stack safety analysis results for single function.
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class StackSafetyInfo {
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public:
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struct FunctionInfo;
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private:
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std::unique_ptr<FunctionInfo> Info;
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public:
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StackSafetyInfo();
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StackSafetyInfo(FunctionInfo &&Info);
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StackSafetyInfo(StackSafetyInfo &&);
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StackSafetyInfo &operator=(StackSafetyInfo &&);
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~StackSafetyInfo();
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// TODO: Add useful for client methods.
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void print(raw_ostream &O) const;
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};
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/// StackSafetyInfo wrapper for the new pass manager.
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class StackSafetyAnalysis : public AnalysisInfoMixin<StackSafetyAnalysis> {
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friend AnalysisInfoMixin<StackSafetyAnalysis>;
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static AnalysisKey Key;
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public:
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using Result = StackSafetyInfo;
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StackSafetyInfo run(Function &F, FunctionAnalysisManager &AM);
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};
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/// Printer pass for the \c StackSafetyAnalysis results.
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class StackSafetyPrinterPass : public PassInfoMixin<StackSafetyPrinterPass> {
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raw_ostream &OS;
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public:
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explicit StackSafetyPrinterPass(raw_ostream &OS) : OS(OS) {}
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
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};
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/// StackSafetyInfo wrapper for the legacy pass manager
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class StackSafetyInfoWrapperPass : public FunctionPass {
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StackSafetyInfo SSI;
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public:
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static char ID;
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StackSafetyInfoWrapperPass();
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const StackSafetyInfo &getResult() const { return SSI; }
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void print(raw_ostream &O, const Module *M) const override;
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void getAnalysisUsage(AnalysisUsage &AU) const override;
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bool runOnFunction(Function &F) override;
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};
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using StackSafetyGlobalInfo = std::map<const GlobalValue *, StackSafetyInfo>;
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/// This pass performs the global (interprocedural) stack safety analysis (new
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/// pass manager).
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class StackSafetyGlobalAnalysis
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: public AnalysisInfoMixin<StackSafetyGlobalAnalysis> {
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friend AnalysisInfoMixin<StackSafetyGlobalAnalysis>;
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static AnalysisKey Key;
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public:
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using Result = StackSafetyGlobalInfo;
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Result run(Module &M, ModuleAnalysisManager &AM);
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};
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/// Printer pass for the \c StackSafetyGlobalAnalysis results.
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class StackSafetyGlobalPrinterPass
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: public PassInfoMixin<StackSafetyGlobalPrinterPass> {
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raw_ostream &OS;
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public:
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explicit StackSafetyGlobalPrinterPass(raw_ostream &OS) : OS(OS) {}
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
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};
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/// This pass performs the global (interprocedural) stack safety analysis
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/// (legacy pass manager).
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class StackSafetyGlobalInfoWrapperPass : public ModulePass {
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StackSafetyGlobalInfo SSI;
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public:
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static char ID;
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StackSafetyGlobalInfoWrapperPass();
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const StackSafetyGlobalInfo &getResult() const { return SSI; }
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void print(raw_ostream &O, const Module *M) const override;
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void getAnalysisUsage(AnalysisUsage &AU) const override;
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bool runOnModule(Module &M) override;
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};
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} // end namespace llvm
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#endif // LLVM_ANALYSIS_STACKSAFETYANALYSIS_H
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