SPIRV-Tools/test/fuzzers/spvtools_as_fuzzer.cpp
Alastair Donaldson e452792594
Simplify the as fuzzer target (#4647)
Makes the logic in the as fuzzer target closer to the logic of the
spirv-as tool.

Fixes #4643
2021-12-10 10:06:23 -05:00

73 lines
2.1 KiB
C++

// Copyright (c) 2019 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <cstdint>
#include <cstring> // memcpy
#include <vector>
#include "source/spirv_target_env.h"
#include "spirv-tools/libspirv.hpp"
#include "test/fuzzers/random_generator.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
spv_target_env target_env = SPV_ENV_UNIVERSAL_1_0;
if (size > 0) {
spvtools::fuzzers::RandomGenerator random_gen(data, size);
target_env = random_gen.GetTargetEnv();
}
const spv_context context = spvContextCreate(target_env);
if (context == nullptr) {
return 0;
}
std::vector<char> contents;
contents.resize(size);
memcpy(contents.data(), data, size);
spv_binary binary = nullptr;
spv_diagnostic diagnostic = nullptr;
spvTextToBinaryWithOptions(context, contents.data(), contents.size(),
SPV_TEXT_TO_BINARY_OPTION_NONE, &binary,
&diagnostic);
if (diagnostic) {
spvDiagnosticPrint(diagnostic);
spvDiagnosticDestroy(diagnostic);
diagnostic = nullptr;
}
if (binary) {
spvBinaryDestroy(binary);
binary = nullptr;
}
spvTextToBinaryWithOptions(context, contents.data(), contents.size(),
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS,
&binary, &diagnostic);
if (diagnostic) {
spvDiagnosticPrint(diagnostic);
spvDiagnosticDestroy(diagnostic);
diagnostic = nullptr;
}
if (binary) {
spvBinaryDestroy(binary);
binary = nullptr;
}
spvContextDestroy(context);
return 0;
}