[llvm-opt-fuzzer] Avoid adding incorrect inputs to the fuzzer corpus

Differential Revision: https://reviews.llvm.org/D42414

llvm-svn: 324225

1 files changed, 6 insertions, 0 deletions

diff --git a/llvm/include/llvm/FuzzMutate/FuzzerCLI.h b/llvm/include/llvm/FuzzMutate/FuzzerCLI.h
index a775fdfb603..3333e96db16 100644
--- a/llvm/include/llvm/FuzzMutate/FuzzerCLI.h
+++ b/llvm/include/llvm/FuzzMutate/FuzzerCLI.h
@@ -68,6 +68,12 @@ std::unique_ptr<Module> parseModule(const uint8_t *Data, size_t Size,
 ///         returns 0 and leaves Dest unchanged.
 size_t writeModule(const Module &M, uint8_t *Dest, size_t MaxSize);
 
+/// Try to parse module and verify it. May output verification errors to the
+/// errs().
+/// \return New module or nullptr in case of error.
+std::unique_ptr<Module> parseAndVerify(const uint8_t *Data, size_t Size,
+                                       LLVMContext &Context);
+
 } // end llvm namespace
 
 #endif // LLVM_FUZZMUTATE_FUZZER_CLI_H