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32791b02fa
Implement DebugInfoVerifier, which steals verification relying on
DebugInfoFinder from Verifier.
- Adds LegacyDebugInfoVerifierPassPass, a ModulePass which wraps
DebugInfoVerifier. Uses -verify-di command-line flag.
- Change verifyModule() to invoke DebugInfoVerifier as well as
Verifier.
- Add a call to createDebugInfoVerifierPass() wherever there was a
call to createVerifierPass().
This implementation as a module pass should sidestep efficiency issues,
allowing us to turn debug info verification back on.
<rdar://problem/15500563>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206300 91177308-0d34-0410-b5e6-96231b3b80d8
89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
//===- Verifier.h - LLVM IR Verifier ----------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the function verifier interface, that can be used for some
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// sanity checking of input to the system, and for checking that transformations
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// haven't done something bad.
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//
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// Note that this does not provide full 'java style' security and verifications,
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// instead it just tries to ensure that code is well formed.
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//
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// To see what specifically is checked, look at the top of Verifier.cpp
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_IR_VERIFIER_H
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#define LLVM_IR_VERIFIER_H
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#include "llvm/ADT/StringRef.h"
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#include <string>
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namespace llvm {
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class Function;
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class FunctionPass;
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class ModulePass;
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class Module;
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class PreservedAnalyses;
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class raw_ostream;
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/// \brief Check a function for errors, useful for use when debugging a
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/// pass.
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///
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/// If there are no errors, the function returns false. If an error is found,
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/// a message describing the error is written to OS (if non-null) and true is
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/// returned.
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bool verifyFunction(const Function &F, raw_ostream *OS = nullptr);
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/// \brief Check a module for errors.
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///
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/// If there are no errors, the function returns false. If an error is found,
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/// a message describing the error is written to OS (if non-null) and true is
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/// returned.
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bool verifyModule(const Module &M, raw_ostream *OS = nullptr);
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/// \brief Create a verifier pass.
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///
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/// Check a module or function for validity. This is essentially a pass wrapped
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/// around the above verifyFunction and verifyModule routines and
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/// functionality. When the pass detects a verification error it is always
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/// printed to stderr, and by default they are fatal. You can override that by
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/// passing \c false to \p FatalErrors.
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///
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/// Note that this creates a pass suitable for the legacy pass manager. It has nothing to do with \c VerifierPass.
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FunctionPass *createVerifierPass(bool FatalErrors = true);
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/// \brief Create a debug-info verifier pass.
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///
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/// Check a module for validity of debug info. This is essentially a pass
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/// wrapped around the debug-info parts of \a verifyModule(). When the pass
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/// detects a verification error it is always printed to stderr, and by default
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/// they are fatal. You can override that by passing \c false to \p
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/// FatalErrors.
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///
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/// Note that this creates a pass suitable for the legacy pass manager. It has
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/// nothing to do with \c VerifierPass.
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ModulePass *createDebugInfoVerifierPass(bool FatalErrors = true);
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class VerifierPass {
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bool FatalErrors;
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public:
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explicit VerifierPass(bool FatalErrors = true) : FatalErrors(FatalErrors) {}
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PreservedAnalyses run(Module *M);
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PreservedAnalyses run(Function *F);
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static StringRef name() { return "VerifierPass"; }
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};
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} // End llvm namespace
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#endif
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