mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-29 06:21:06 +00:00
502e982956
This fixes a problem where TransformationInlineFunction could lead to distinct instructions having identical unique ids. It adds a validity check to detect this problem in general. Fixes #3911.
75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
// Copyright (c) 2019 Google LLC
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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 "source/fuzz/fact_manager/fact_manager.h"
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#include "gtest/gtest.h"
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#include "source/fuzz/fuzzer_util.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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TEST(DeadBlockFactsTest, BlockIsDead) {
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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 %2 "main"
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OpExecutionMode %2 OriginUpperLeft
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OpSource ESSL 310
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%3 = OpTypeVoid
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%4 = OpTypeFunction %3
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%5 = OpTypeBool
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%6 = OpConstantTrue %5
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%7 = OpTypeInt 32 1
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%8 = OpTypePointer Function %7
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%2 = OpFunction %3 None %4
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%9 = OpLabel
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OpSelectionMerge %10 None
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OpBranchConditional %6 %11 %12
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%11 = OpLabel
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OpBranch %10
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%12 = OpLabel
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OpBranch %10
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%10 = OpLabel
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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_5;
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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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FactManager fact_manager(context.get());
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ASSERT_FALSE(fact_manager.BlockIsDead(9));
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ASSERT_FALSE(fact_manager.BlockIsDead(11));
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ASSERT_FALSE(fact_manager.BlockIsDead(12));
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fact_manager.AddFactBlockIsDead(12);
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ASSERT_FALSE(fact_manager.BlockIsDead(9));
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ASSERT_FALSE(fact_manager.BlockIsDead(11));
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ASSERT_TRUE(fact_manager.BlockIsDead(12));
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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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