Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

//===- SafepointIRVerifier.h - Checks for GC relocation problems *- C++ -*-===//

//

// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

// See https://llvm.org/LICENSE.txt for license information.

// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//

//===----------------------------------------------------------------------===//

//

// This file defines a verifier which is useful for enforcing the relocation

// properties required by a relocating GC.  Specifically, it looks for uses of

// the unrelocated value of pointer SSA values after a possible safepoint. It

// attempts to report no false negatives, but may end up reporting false

// positives in rare cases (see the note at the top of the corresponding cpp

// file.)

//

//===----------------------------------------------------------------------===//

#ifndef LLVM_IR_SAFEPOINTIRVERIFIER_H

#define LLVM_IR_SAFEPOINTIRVERIFIER_H

#include "llvm/IR/PassManager.h"

namespace llvm {

class Function;

class FunctionPass;

/// Run the safepoint verifier over a single function.  Crashes on failure.

void verifySafepointIR(Function &F);

/// Create an instance of the safepoint verifier pass which can be added to

/// a pass pipeline to check for relocation bugs.

FunctionPass *createSafepointIRVerifierPass();

/// Create an instance of the safepoint verifier pass which can be added to

/// a pass pipeline to check for relocation bugs.

class SafepointIRVerifierPass : public PassInfoMixin<SafepointIRVerifierPass> {

public:

  explicit SafepointIRVerifierPass() = default;

  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);

};

}

#endif // LLVM_IR_SAFEPOINTIRVERIFIER_H