| // Copyright (c) 2019 Google LLC | |
| // | |
| // 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 "source/fuzz/transformation_merge_blocks.h" | |
| #include "gtest/gtest.h" | |
| #include "source/fuzz/fuzzer_util.h" | |
| #include "test/fuzz/fuzz_test_util.h" | |
| namespace spvtools { | |
| namespace fuzz { | |
| namespace { | |
| TEST(TransformationMergeBlocksTest, BlockDoesNotExist) { | |
| std::string shader = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| OpName %4 "main" | |
| %2 = OpTypeVoid | |
| %3 = OpTypeFunction %2 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| OpBranch %6 | |
| %6 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| const auto env = SPV_ENV_UNIVERSAL_1_4; | |
| const auto consumer = nullptr; | |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); | |
| spvtools::ValidatorOptions validator_options; | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| TransformationContext transformation_context( | |
| MakeUnique<FactManager>(context.get()), validator_options); | |
| ASSERT_FALSE(TransformationMergeBlocks(3).IsApplicable( | |
| context.get(), transformation_context)); | |
| ASSERT_FALSE(TransformationMergeBlocks(7).IsApplicable( | |
| context.get(), transformation_context)); | |
| } | |
| TEST(TransformationMergeBlocksTest, DoNotMergeFirstBlockHasMultipleSuccessors) { | |
| std::string shader = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| OpName %4 "main" | |
| %2 = OpTypeVoid | |
| %7 = OpTypeBool | |
| %8 = OpConstantTrue %7 | |
| %3 = OpTypeFunction %2 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| OpSelectionMerge %10 None | |
| OpBranchConditional %8 %6 %9 | |
| %6 = OpLabel | |
| OpBranch %10 | |
| %9 = OpLabel | |
| OpBranch %10 | |
| %10 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| const auto env = SPV_ENV_UNIVERSAL_1_4; | |
| const auto consumer = nullptr; | |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); | |
| spvtools::ValidatorOptions validator_options; | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| TransformationContext transformation_context( | |
| MakeUnique<FactManager>(context.get()), validator_options); | |
| ASSERT_FALSE(TransformationMergeBlocks(6).IsApplicable( | |
| context.get(), transformation_context)); | |
| } | |
| TEST(TransformationMergeBlocksTest, | |
| DoNotMergeSecondBlockHasMultiplePredecessors) { | |
| std::string shader = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| OpName %4 "main" | |
| %2 = OpTypeVoid | |
| %7 = OpTypeBool | |
| %8 = OpConstantTrue %7 | |
| %3 = OpTypeFunction %2 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| OpSelectionMerge %10 None | |
| OpBranchConditional %8 %6 %9 | |
| %6 = OpLabel | |
| OpBranch %10 | |
| %9 = OpLabel | |
| OpBranch %10 | |
| %10 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| const auto env = SPV_ENV_UNIVERSAL_1_4; | |
| const auto consumer = nullptr; | |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); | |
| spvtools::ValidatorOptions validator_options; | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| TransformationContext transformation_context( | |
| MakeUnique<FactManager>(context.get()), validator_options); | |
| ASSERT_FALSE(TransformationMergeBlocks(10).IsApplicable( | |
| context.get(), transformation_context)); | |
| } | |
| TEST(TransformationMergeBlocksTest, MergeWhenSecondBlockIsSelectionMerge) { | |
| std::string shader = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| OpName %4 "main" | |
| %2 = OpTypeVoid | |
| %7 = OpTypeBool | |
| %8 = OpConstantTrue %7 | |
| %3 = OpTypeFunction %2 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| OpSelectionMerge %10 None | |
| OpBranchConditional %8 %6 %9 | |
| %6 = OpLabel | |
| OpBranch %11 | |
| %9 = OpLabel | |
| OpBranch %11 | |
| %11 = OpLabel | |
| OpBranch %10 | |
| %10 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| const auto env = SPV_ENV_UNIVERSAL_1_4; | |
| const auto consumer = nullptr; | |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); | |
| spvtools::ValidatorOptions validator_options; | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| TransformationContext transformation_context( | |
| MakeUnique<FactManager>(context.get()), validator_options); | |
| TransformationMergeBlocks transformation(10); | |
| ASSERT_TRUE( | |
| transformation.IsApplicable(context.get(), transformation_context)); | |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| std::string after_transformation = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| OpName %4 "main" | |
| %2 = OpTypeVoid | |
| %7 = OpTypeBool | |
| %8 = OpConstantTrue %7 | |
| %3 = OpTypeFunction %2 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| OpSelectionMerge %11 None | |
| OpBranchConditional %8 %6 %9 | |
| %6 = OpLabel | |
| OpBranch %11 | |
| %9 = OpLabel | |
| OpBranch %11 | |
| %11 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); | |
| } | |
| TEST(TransformationMergeBlocksTest, MergeWhenSecondBlockIsLoopMerge) { | |
| std::string shader = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| OpName %4 "main" | |
| %2 = OpTypeVoid | |
| %7 = OpTypeBool | |
| %8 = OpConstantTrue %7 | |
| %3 = OpTypeFunction %2 | |
| %4 = OpFunction %2 None %3 | |
| %12 = OpLabel | |
| OpBranch %5 | |
| %5 = OpLabel | |
| OpLoopMerge %10 %11 None | |
| OpBranch %6 | |
| %6 = OpLabel | |
| OpBranchConditional %8 %9 %11 | |
| %9 = OpLabel | |
| OpBranch %10 | |
| %11 = OpLabel | |
| OpBranch %5 | |
| %10 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| const auto env = SPV_ENV_UNIVERSAL_1_4; | |
| const auto consumer = nullptr; | |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); | |
| spvtools::ValidatorOptions validator_options; | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| TransformationContext transformation_context( | |
| MakeUnique<FactManager>(context.get()), validator_options); | |
| TransformationMergeBlocks transformation(10); | |
| ASSERT_TRUE( | |
| transformation.IsApplicable(context.get(), transformation_context)); | |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| std::string after_transformation = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| OpName %4 "main" | |
| %2 = OpTypeVoid | |
| %7 = OpTypeBool | |
| %8 = OpConstantTrue %7 | |
| %3 = OpTypeFunction %2 | |
| %4 = OpFunction %2 None %3 | |
| %12 = OpLabel | |
| OpBranch %5 | |
| %5 = OpLabel | |
| OpLoopMerge %9 %11 None | |
| OpBranch %6 | |
| %6 = OpLabel | |
| OpBranchConditional %8 %9 %11 | |
| %9 = OpLabel | |
| OpReturn | |
| %11 = OpLabel | |
| OpBranch %5 | |
| OpFunctionEnd | |
| )"; | |
| ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); | |
| } | |
| TEST(TransformationMergeBlocksTest, MergeWhenSecondBlockIsLoopContinue) { | |
| std::string shader = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| OpName %4 "main" | |
| %2 = OpTypeVoid | |
| %7 = OpTypeBool | |
| %8 = OpConstantTrue %7 | |
| %3 = OpTypeFunction %2 | |
| %4 = OpFunction %2 None %3 | |
| %13 = OpLabel | |
| OpBranch %5 | |
| %5 = OpLabel | |
| OpLoopMerge %10 %11 None | |
| OpBranch %6 | |
| %6 = OpLabel | |
| OpSelectionMerge %9 None | |
| OpBranchConditional %8 %9 %12 | |
| %12 = OpLabel | |
| OpBranch %11 | |
| %11 = OpLabel | |
| OpBranch %5 | |
| %9 = OpLabel | |
| OpBranch %10 | |
| %10 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| const auto env = SPV_ENV_UNIVERSAL_1_4; | |
| const auto consumer = nullptr; | |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); | |
| spvtools::ValidatorOptions validator_options; | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| TransformationContext transformation_context( | |
| MakeUnique<FactManager>(context.get()), validator_options); | |
| TransformationMergeBlocks transformation(11); | |
| ASSERT_TRUE( | |
| transformation.IsApplicable(context.get(), transformation_context)); | |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| std::string after_transformation = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| OpName %4 "main" | |
| %2 = OpTypeVoid | |
| %7 = OpTypeBool | |
| %8 = OpConstantTrue %7 | |
| %3 = OpTypeFunction %2 | |
| %4 = OpFunction %2 None %3 | |
| %13 = OpLabel | |
| OpBranch %5 | |
| %5 = OpLabel | |
| OpLoopMerge %10 %12 None | |
| OpBranch %6 | |
| %6 = OpLabel | |
| OpSelectionMerge %9 None | |
| OpBranchConditional %8 %9 %12 | |
| %12 = OpLabel | |
| OpBranch %5 | |
| %9 = OpLabel | |
| OpBranch %10 | |
| %10 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); | |
| } | |
| TEST(TransformationMergeBlocksTest, MergeWhenSecondBlockStartsWithOpPhi) { | |
| std::string shader = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| OpName %4 "main" | |
| %2 = OpTypeVoid | |
| %3 = OpTypeFunction %2 | |
| %7 = OpTypeBool | |
| %8 = OpUndef %7 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| OpBranch %6 | |
| %6 = OpLabel | |
| %9 = OpPhi %7 %8 %5 | |
| %10 = OpCopyObject %7 %9 | |
| OpBranch %11 | |
| %11 = OpLabel | |
| %12 = OpCopyObject %7 %9 | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| const auto env = SPV_ENV_UNIVERSAL_1_4; | |
| const auto consumer = nullptr; | |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); | |
| spvtools::ValidatorOptions validator_options; | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| TransformationContext transformation_context( | |
| MakeUnique<FactManager>(context.get()), validator_options); | |
| TransformationMergeBlocks transformation(6); | |
| ASSERT_TRUE( | |
| transformation.IsApplicable(context.get(), transformation_context)); | |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| std::string after_transformation = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| OpName %4 "main" | |
| %2 = OpTypeVoid | |
| %3 = OpTypeFunction %2 | |
| %7 = OpTypeBool | |
| %8 = OpUndef %7 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| %10 = OpCopyObject %7 %8 | |
| OpBranch %11 | |
| %11 = OpLabel | |
| %12 = OpCopyObject %7 %8 | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); | |
| } | |
| TEST(TransformationMergeBlocksTest, BasicMerge) { | |
| std::string shader = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| %2 = OpTypeVoid | |
| %3 = OpTypeFunction %2 | |
| %6 = OpTypeInt 32 1 | |
| %7 = OpTypePointer Function %6 | |
| %9 = OpConstant %6 2 | |
| %11 = OpConstant %6 3 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| %8 = OpVariable %7 Function | |
| %10 = OpVariable %7 Function | |
| OpStore %8 %9 | |
| OpBranch %100 | |
| %100 = OpLabel | |
| OpStore %10 %11 | |
| %12 = OpLoad %6 %10 | |
| %13 = OpLoad %6 %8 | |
| OpBranch %101 | |
| %101 = OpLabel | |
| %14 = OpIAdd %6 %13 %12 | |
| OpStore %8 %14 | |
| %15 = OpLoad %6 %8 | |
| OpBranch %102 | |
| %102 = OpLabel | |
| %16 = OpLoad %6 %10 | |
| %17 = OpIMul %6 %16 %15 | |
| OpBranch %103 | |
| %103 = OpLabel | |
| OpStore %10 %17 | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| const auto env = SPV_ENV_UNIVERSAL_1_4; | |
| const auto consumer = nullptr; | |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); | |
| spvtools::ValidatorOptions validator_options; | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| TransformationContext transformation_context( | |
| MakeUnique<FactManager>(context.get()), validator_options); | |
| for (auto& transformation : | |
| {TransformationMergeBlocks(100), TransformationMergeBlocks(101), | |
| TransformationMergeBlocks(102), TransformationMergeBlocks(103)}) { | |
| ASSERT_TRUE( | |
| transformation.IsApplicable(context.get(), transformation_context)); | |
| ApplyAndCheckFreshIds(transformation, context.get(), | |
| &transformation_context); | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed( | |
| context.get(), validator_options, kConsoleMessageConsumer)); | |
| } | |
| std::string after_transformation = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| %2 = OpTypeVoid | |
| %3 = OpTypeFunction %2 | |
| %6 = OpTypeInt 32 1 | |
| %7 = OpTypePointer Function %6 | |
| %9 = OpConstant %6 2 | |
| %11 = OpConstant %6 3 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| %8 = OpVariable %7 Function | |
| %10 = OpVariable %7 Function | |
| OpStore %8 %9 | |
| OpStore %10 %11 | |
| %12 = OpLoad %6 %10 | |
| %13 = OpLoad %6 %8 | |
| %14 = OpIAdd %6 %13 %12 | |
| OpStore %8 %14 | |
| %15 = OpLoad %6 %8 | |
| %16 = OpLoad %6 %10 | |
| %17 = OpIMul %6 %16 %15 | |
| OpStore %10 %17 | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); | |
| } | |
| TEST(TransformationMergeBlocksTest, MergeWhenSecondBlockIsSelectionHeader) { | |
| std::string shader = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| %2 = OpTypeVoid | |
| %3 = OpTypeFunction %2 | |
| %6 = OpTypeInt 32 1 | |
| %7 = OpTypePointer Function %6 | |
| %9 = OpConstant %6 2 | |
| %11 = OpConstant %6 3 | |
| %50 = OpTypeBool | |
| %51 = OpConstantTrue %50 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| %8 = OpVariable %7 Function | |
| %10 = OpVariable %7 Function | |
| OpStore %8 %9 | |
| OpBranch %100 | |
| %100 = OpLabel | |
| OpStore %10 %11 | |
| %12 = OpLoad %6 %10 | |
| %13 = OpLoad %6 %8 | |
| OpBranch %101 | |
| %101 = OpLabel | |
| OpSelectionMerge %103 None | |
| OpBranchConditional %51 %102 %103 | |
| %102 = OpLabel | |
| %14 = OpIAdd %6 %13 %12 | |
| OpStore %8 %14 | |
| OpBranch %103 | |
| %103 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| const auto env = SPV_ENV_UNIVERSAL_1_4; | |
| const auto consumer = nullptr; | |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); | |
| spvtools::ValidatorOptions validator_options; | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| TransformationContext transformation_context( | |
| MakeUnique<FactManager>(context.get()), validator_options); | |
| for (auto& transformation : | |
| {TransformationMergeBlocks(101), TransformationMergeBlocks(100)}) { | |
| ASSERT_TRUE( | |
| transformation.IsApplicable(context.get(), transformation_context)); | |
| ApplyAndCheckFreshIds(transformation, context.get(), | |
| &transformation_context); | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed( | |
| context.get(), validator_options, kConsoleMessageConsumer)); | |
| } | |
| std::string after_transformation = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| %2 = OpTypeVoid | |
| %3 = OpTypeFunction %2 | |
| %6 = OpTypeInt 32 1 | |
| %7 = OpTypePointer Function %6 | |
| %9 = OpConstant %6 2 | |
| %11 = OpConstant %6 3 | |
| %50 = OpTypeBool | |
| %51 = OpConstantTrue %50 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| %8 = OpVariable %7 Function | |
| %10 = OpVariable %7 Function | |
| OpStore %8 %9 | |
| OpStore %10 %11 | |
| %12 = OpLoad %6 %10 | |
| %13 = OpLoad %6 %8 | |
| OpSelectionMerge %103 None | |
| OpBranchConditional %51 %102 %103 | |
| %102 = OpLabel | |
| %14 = OpIAdd %6 %13 %12 | |
| OpStore %8 %14 | |
| OpBranch %103 | |
| %103 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); | |
| } | |
| TEST(TransformationMergeBlocksTest, | |
| MergeWhenFirstBlockIsLoopMergeFollowedByUnconditionalBranch) { | |
| std::string shader = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| %2 = OpTypeVoid | |
| %3 = OpTypeFunction %2 | |
| %6 = OpTypeInt 32 1 | |
| %7 = OpTypePointer Function %6 | |
| %9 = OpConstant %6 2 | |
| %11 = OpConstant %6 3 | |
| %50 = OpTypeBool | |
| %51 = OpConstantTrue %50 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| %8 = OpVariable %7 Function | |
| %10 = OpVariable %7 Function | |
| OpStore %8 %9 | |
| OpBranch %100 | |
| %100 = OpLabel | |
| OpLoopMerge %102 %103 None | |
| OpBranch %101 | |
| %101 = OpLabel | |
| %200 = OpCopyObject %6 %9 | |
| OpBranchConditional %51 %102 %103 | |
| %103 = OpLabel | |
| OpBranch %100 | |
| %102 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| const auto env = SPV_ENV_UNIVERSAL_1_4; | |
| const auto consumer = nullptr; | |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); | |
| spvtools::ValidatorOptions validator_options; | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| TransformationContext transformation_context( | |
| MakeUnique<FactManager>(context.get()), validator_options); | |
| TransformationMergeBlocks transformation(101); | |
| ASSERT_TRUE( | |
| transformation.IsApplicable(context.get(), transformation_context)); | |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); | |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, | |
| kConsoleMessageConsumer)); | |
| std::string after_transformation = R"( | |
| OpCapability Shader | |
| %1 = OpExtInstImport "GLSL.std.450" | |
| OpMemoryModel Logical GLSL450 | |
| OpEntryPoint Fragment %4 "main" | |
| OpExecutionMode %4 OriginUpperLeft | |
| OpSource ESSL 310 | |
| %2 = OpTypeVoid | |
| %3 = OpTypeFunction %2 | |
| %6 = OpTypeInt 32 1 | |
| %7 = OpTypePointer Function %6 | |
| %9 = OpConstant %6 2 | |
| %11 = OpConstant %6 3 | |
| %50 = OpTypeBool | |
| %51 = OpConstantTrue %50 | |
| %4 = OpFunction %2 None %3 | |
| %5 = OpLabel | |
| %8 = OpVariable %7 Function | |
| %10 = OpVariable %7 Function | |
| OpStore %8 %9 | |
| OpBranch %100 | |
| %100 = OpLabel | |
| %200 = OpCopyObject %6 %9 | |
| OpLoopMerge %102 %103 None | |
| OpBranchConditional %51 %102 %103 | |
| %103 = OpLabel | |
| OpBranch %100 | |
| %102 = OpLabel | |
| OpReturn | |
| OpFunctionEnd | |
| )"; | |
| ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); | |
| } | |
| } // namespace | |
| } // namespace fuzz | |
| } // namespace spvtools |