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47 lines
1.6 KiB
C++
47 lines
1.6 KiB
C++
//===- SafepointIRVerifier.h - Checks for GC relocation problems *- 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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// This file defines a verifier which is useful for enforcing the relocation
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// properties required by a relocating GC. Specifically, it looks for uses of
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// the unrelocated value of pointer SSA values after a possible safepoint. It
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// attempts to report no false negatives, but may end up reporting false
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// positives in rare cases (see the note at the top of the corresponding cpp
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// file.)
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_IR_SAFEPOINTIRVERIFIER_H
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#define LLVM_IR_SAFEPOINTIRVERIFIER_H
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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class Function;
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class FunctionPass;
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/// Run the safepoint verifier over a single function. Crashes on failure.
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void verifySafepointIR(Function &F);
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/// Create an instance of the safepoint verifier pass which can be added to
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/// a pass pipeline to check for relocation bugs.
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FunctionPass *createSafepointIRVerifierPass();
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/// Create an instance of the safepoint verifier pass which can be added to
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/// a pass pipeline to check for relocation bugs.
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class SafepointIRVerifierPass : public PassInfoMixin<SafepointIRVerifierPass> {
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public:
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explicit SafepointIRVerifierPass() {}
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
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};
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}
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#endif // LLVM_IR_SAFEPOINTIRVERIFIER_H
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