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ff18cfe664
Summary: If we insert them from function pass some analysis may be missing or invalid. Fixes PR42877. Reviewers: eugenis, leonardchan Reviewed By: leonardchan Subscribers: hiraditya, cfe-commits, llvm-commits Tags: #clang, #llvm Differential Revision: https://reviews.llvm.org/D68832 llvm-svn: 374481
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
//===- Transforms/Instrumentation/MemorySanitizer.h - MSan 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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// This file defines the memoy sanitizer pass.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_INSTRUMENTATION_MEMORYSANITIZER_H
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#define LLVM_TRANSFORMS_INSTRUMENTATION_MEMORYSANITIZER_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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struct MemorySanitizerOptions {
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MemorySanitizerOptions() : MemorySanitizerOptions(0, false, false){};
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MemorySanitizerOptions(int TrackOrigins, bool Recover, bool Kernel);
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bool Kernel;
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int TrackOrigins;
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bool Recover;
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};
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// Insert MemorySanitizer instrumentation (detection of uninitialized reads)
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FunctionPass *
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createMemorySanitizerLegacyPassPass(MemorySanitizerOptions Options = {});
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/// A function pass for msan instrumentation.
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///
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/// Instruments functions to detect unitialized reads. This function pass
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/// inserts calls to runtime library functions. If the functions aren't declared
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/// yet, the pass inserts the declarations. Otherwise the existing globals are
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/// used.
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struct MemorySanitizerPass : public PassInfoMixin<MemorySanitizerPass> {
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MemorySanitizerPass(MemorySanitizerOptions Options) : Options(Options) {}
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &FAM);
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
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private:
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MemorySanitizerOptions Options;
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};
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}
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#endif /* LLVM_TRANSFORMS_INSTRUMENTATION_MEMORYSANITIZER_H */
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