tools/vfabi-demangle-fuzzer/vfabi-demangler-fuzzer.cpp

   1 //===-- vfabi-demangler-fuzzer.cpp - Fuzzer VFABI using lib/Fuzzer   ------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // Build tool to fuzz the demangler for the vector function ABI names.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "llvm/Analysis/VectorUtils.h"
  14
  15 using namespace llvm;
  16
  17 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  18   const StringRef MangledName((const char *)Data, Size);
  19   const auto Info = VFABI::tryDemangleForVFABI(MangledName);
  20
  21   // Do not optimize away the return value. Inspired by
  22   // https://github.com/google/benchmark/blob/master/include/benchmark/benchmark.h#L307-L345
  23   asm volatile("" : : "r,m"(Info) : "memory");
  24
  25   return 0;
  26 }