teak-llvm/clang/tools/clang-fuzzer/fuzzer-initialize/fuzzer_initialize.cpp
Emmett Neyman e5581242a0 Updated llvm-proto-fuzzer to execute the compiled code
Summary:
Made changes to the llvm-proto-fuzzer
- Added loop vectorizer optimization pass in order to have two IR versions
- Updated old fuzz target to handle two different IR versions
- Wrote code to execute both versions in memory

Reviewers: morehouse, kcc, alexshap

Reviewed By: morehouse

Subscribers: pcc, mgorny, cfe-commits, llvm-commits

Differential Revision: https://reviews.llvm.org/D49526

llvm-svn: 338077
2018-07-26 22:23:25 +00:00

66 lines
1.8 KiB
C++

//===-- fuzzer_initialize.cpp - Fuzz Clang --------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// This file implements two functions: one that returns the command line
/// arguments for a given call to the fuzz target and one that initializes
/// the fuzzer with the correct command line arguments.
///
//===----------------------------------------------------------------------===//
#include "fuzzer_initialize.h"
#include "llvm/InitializePasses.h"
#include "llvm/PassRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include <cstring>
using namespace clang_fuzzer;
using namespace llvm;
namespace clang_fuzzer {
static std::vector<const char *> CLArgs;
const std::vector<const char *>& GetCLArgs() {
return CLArgs;
}
}
extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) {
InitializeAllTargets();
InitializeAllTargetMCs();
InitializeAllAsmPrinters();
InitializeAllAsmParsers();
PassRegistry &Registry = *PassRegistry::getPassRegistry();
initializeCore(Registry);
initializeScalarOpts(Registry);
initializeVectorization(Registry);
initializeIPO(Registry);
initializeAnalysis(Registry);
initializeTransformUtils(Registry);
initializeInstCombine(Registry);
initializeAggressiveInstCombine(Registry);
initializeInstrumentation(Registry);
initializeTarget(Registry);
CLArgs.push_back("-O2");
for (int I = 1; I < *argc; I++) {
if (strcmp((*argv)[I], "-ignore_remaining_args=1") == 0) {
for (I++; I < *argc; I++)
CLArgs.push_back((*argv)[I]);
break;
}
}
return 0;
}