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be73a51136
The shader with uninitialized variables will fail to compile on D3D12 backend. SPIRV-Cross has added an option for supporting forcefully zero-initialized variables in latest version. Bug: dawn:347 Change-Id: Id02fa486317c583ee11cfe3bc382816dc34121fb Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18680 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Austin Eng <enga@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
// Copyright 2018 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <cstdint>
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#include <string>
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#include <vector>
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#include "DawnSPIRVCrossFuzzer.h"
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namespace {
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int FuzzTask(const std::vector<uint32_t>& input) {
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shaderc_spvc::Context context;
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if (!context.IsValid()) {
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return 0;
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}
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DawnSPIRVCrossFuzzer::ExecuteWithSignalTrap([&context, &input]() {
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shaderc_spvc::CompilationResult result;
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shaderc_spvc::CompileOptions options;
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options.SetSourceEnvironment(shaderc_target_env_webgpu, shaderc_env_version_webgpu);
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options.SetTargetEnvironment(shaderc_target_env_vulkan, shaderc_env_version_vulkan_1_1);
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// Using the options that are used by Dawn, they appear in ShaderModuleD3D12.cpp
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options.SetForceZeroInitializedVariables(true);
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options.SetHLSLShaderModel(51);
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// TODO (hao.x.li@intel.com): The HLSLPointCoordCompat and HLSLPointSizeCompat are
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// required temporarily for https://bugs.chromium.org/p/dawn/issues/detail?id=146,
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// but should be removed once WebGPU requires there is no gl_PointSize builtin.
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// See https://github.com/gpuweb/gpuweb/issues/332
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options.SetHLSLPointCoordCompat(true);
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options.SetHLSLPointSizeCompat(true);
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if (context.InitializeForHlsl(input.data(), input.size(), options) ==
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shaderc_spvc_status_success) {
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context.CompileShader(&result);
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}
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});
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return 0;
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}
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} // namespace
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extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv) {
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return 0;
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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return DawnSPIRVCrossFuzzer::Run(data, size, FuzzTask);
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}
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