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DawnSPIRVCrossHLSLFastFuzzer.cpp
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DawnSPIRVCrossHLSLFastFuzzer.cpp
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// Copyright 2018 The Dawn Authors
//
// 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 <string>
#include <vector>
#include "DawnSPIRVCrossFuzzer.h"
namespace {
int FuzzTask(const std::vector<uint32_t>& input) {
shaderc_spvc::Context context;
if (!context.IsValid()) {
return 0;
}
DawnSPIRVCrossFuzzer::ExecuteWithSignalTrap([&context, &input]() {
shaderc_spvc::CompilationResult result;
shaderc_spvc::CompileOptions options;
options.SetSourceEnvironment(shaderc_target_env_webgpu, shaderc_env_version_webgpu);
options.SetTargetEnvironment(shaderc_target_env_vulkan, shaderc_env_version_vulkan_1_1);
// Using the options that are used by Dawn, they appear in ShaderModuleD3D12.cpp
options.SetForceZeroInitializedVariables(true);
options.SetHLSLShaderModel(51);
// TODO (hao.x.li@intel.com): The HLSLPointCoordCompat and HLSLPointSizeCompat are
// required temporarily for https://bugs.chromium.org/p/dawn/issues/detail?id=146,
// but should be removed once WebGPU requires there is no gl_PointSize builtin.
// See https://github.com/gpuweb/gpuweb/issues/332
options.SetHLSLPointCoordCompat(true);
options.SetHLSLPointSizeCompat(true);
if (context.InitializeForHlsl(input.data(), input.size(), options) ==
shaderc_spvc_status_success) {
context.CompileShader(&result);
}
});
return 0;
}
} // namespace
extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv) {
return 0;
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
return DawnSPIRVCrossFuzzer::Run(data, size, FuzzTask);
}