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104 lines
3.6 KiB
104 lines
3.6 KiB
// Copyright (c) 2020 Vasyl Teliman
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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 "gtest/gtest.h"
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#include "source/fuzz/fuzzer_pass_add_opphi_synonyms.h"
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#include "source/fuzz/fuzzer_util.h"
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#include "source/fuzz/pseudo_random_generator.h"
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#include "test/fuzz/fuzz_test_util.h"
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namespace spvtools {
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namespace fuzz {
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namespace {
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class FuzzerPassMock : public FuzzerPass {
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public:
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FuzzerPassMock(opt::IRContext* ir_context,
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TransformationContext* transformation_context,
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FuzzerContext* fuzzer_context,
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protobufs::TransformationSequence* transformations)
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: FuzzerPass(ir_context, transformation_context, fuzzer_context,
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transformations) {}
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~FuzzerPassMock() override = default;
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const std::unordered_set<uint32_t>& GetReachedInstructions() const {
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return reached_ids_;
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}
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void Apply() override {
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ForEachInstructionWithInstructionDescriptor(
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[this](opt::Function* /*unused*/, opt::BasicBlock* /*unused*/,
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opt::BasicBlock::iterator inst_it,
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const protobufs::InstructionDescriptor& /*unused*/) {
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if (inst_it->result_id()) {
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reached_ids_.insert(inst_it->result_id());
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}
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});
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}
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private:
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std::unordered_set<uint32_t> reached_ids_;
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};
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TEST(FuzzerPassTest, ForEachInstructionWithInstructionDescriptor) {
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std::string shader = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %4 "main"
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 310
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeFloat 32
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%7 = OpUndef %6
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OpReturn
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%8 = OpLabel
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%9 = OpUndef %6
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OpReturn
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OpFunctionEnd
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)";
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const auto env = SPV_ENV_UNIVERSAL_1_3;
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const auto consumer = nullptr;
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const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
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spvtools::ValidatorOptions validator_options;
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ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
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kConsoleMessageConsumer));
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TransformationContext transformation_context(
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MakeUnique<FactManager>(context.get()), validator_options);
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// Check that %5 is reachable and %8 is unreachable as expected.
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const auto* dominator_analysis =
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context->GetDominatorAnalysis(context->GetFunction(4));
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ASSERT_TRUE(dominator_analysis->IsReachable(5));
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ASSERT_FALSE(dominator_analysis->IsReachable(8));
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PseudoRandomGenerator prng(0);
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FuzzerContext fuzzer_context(&prng, 100);
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protobufs::TransformationSequence transformations;
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FuzzerPassMock fuzzer_pass_mock(context.get(), &transformation_context,
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&fuzzer_context, &transformations);
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fuzzer_pass_mock.Apply();
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ASSERT_TRUE(fuzzer_pass_mock.GetReachedInstructions().count(7));
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ASSERT_FALSE(fuzzer_pass_mock.GetReachedInstructions().count(9));
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}
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} // namespace
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} // namespace fuzz
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} // namespace spvtools
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