| // Copyright (c) 2020 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_replace_irrelevant_id.h" |
| |
| #include "source/fuzz/id_use_descriptor.h" |
| #include "source/fuzz/instruction_descriptor.h" |
| #include "test/fuzz/fuzz_test_util.h" |
| |
| namespace spvtools { |
| namespace fuzz { |
| namespace { |
| const std::string shader = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %2 "main" |
| OpExecutionMode %2 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %2 "main" |
| OpName %3 "a" |
| OpName %4 "b" |
| %5 = OpTypeVoid |
| %6 = OpTypeFunction %5 |
| %7 = OpTypeBool |
| %8 = OpConstantTrue %7 |
| %9 = OpTypeInt 32 1 |
| %10 = OpTypePointer Function %9 |
| %11 = OpConstant %9 2 |
| %12 = OpTypeStruct %9 |
| %13 = OpTypeInt 32 0 |
| %14 = OpConstant %13 3 |
| %15 = OpTypeArray %12 %14 |
| %16 = OpTypePointer Function %15 |
| %17 = OpConstant %9 0 |
| %2 = OpFunction %5 None %6 |
| %18 = OpLabel |
| %3 = OpVariable %10 Function |
| %4 = OpVariable %10 Function |
| %19 = OpVariable %16 Function |
| OpStore %3 %11 |
| %20 = OpLoad %9 %3 |
| %21 = OpAccessChain %10 %19 %20 %17 |
| %22 = OpLoad %9 %21 |
| OpStore %4 %22 |
| %23 = OpLoad %9 %4 |
| %24 = OpIAdd %9 %20 %23 |
| %25 = OpISub %9 %23 %20 |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| void SetUpIrrelevantIdFacts(FactManager* fact_manager) { |
| fact_manager->AddFactIdIsIrrelevant(17); |
| fact_manager->AddFactIdIsIrrelevant(23); |
| fact_manager->AddFactIdIsIrrelevant(24); |
| fact_manager->AddFactIdIsIrrelevant(25); |
| } |
| |
| TEST(TransformationReplaceIrrelevantIdTest, Inapplicable) { |
| const auto env = SPV_ENV_UNIVERSAL_1_5; |
| const auto consumer = nullptr; |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); |
| ASSERT_TRUE(IsValid(env, context.get())); |
| |
| spvtools::ValidatorOptions validator_options; |
| TransformationContext transformation_context( |
| MakeUnique<FactManager>(context.get()), validator_options); |
| SetUpIrrelevantIdFacts(transformation_context.GetFactManager()); |
| |
| auto instruction_21_descriptor = |
| MakeInstructionDescriptor(21, SpvOpAccessChain, 0); |
| auto instruction_24_descriptor = MakeInstructionDescriptor(24, SpvOpIAdd, 0); |
| |
| // %20 has not been declared as irrelevant. |
| ASSERT_FALSE(TransformationReplaceIrrelevantId( |
| MakeIdUseDescriptor(20, instruction_24_descriptor, 0), 23) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // %22 is not used in %24. |
| ASSERT_FALSE(TransformationReplaceIrrelevantId( |
| MakeIdUseDescriptor(22, instruction_24_descriptor, 1), 20) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // Replacement id %50 does not exist. |
| ASSERT_FALSE(TransformationReplaceIrrelevantId( |
| MakeIdUseDescriptor(23, instruction_24_descriptor, 1), 50) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // %25 is not available to use at %24. |
| ASSERT_FALSE(TransformationReplaceIrrelevantId( |
| MakeIdUseDescriptor(23, instruction_24_descriptor, 1), 25) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // %24 is not available to use at %24. |
| ASSERT_FALSE(TransformationReplaceIrrelevantId( |
| MakeIdUseDescriptor(23, instruction_24_descriptor, 1), 24) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // %8 has not the same type as %23. |
| ASSERT_FALSE(TransformationReplaceIrrelevantId( |
| MakeIdUseDescriptor(23, instruction_24_descriptor, 1), 8) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // %17 is an index to a struct in an access chain, so it can't be replaced. |
| ASSERT_FALSE(TransformationReplaceIrrelevantId( |
| MakeIdUseDescriptor(17, instruction_21_descriptor, 2), 20) |
| .IsApplicable(context.get(), transformation_context)); |
| } |
| |
| TEST(TransformationReplaceIrrelevantIdTest, Apply) { |
| const auto env = SPV_ENV_UNIVERSAL_1_5; |
| const auto consumer = nullptr; |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); |
| ASSERT_TRUE(IsValid(env, context.get())); |
| |
| spvtools::ValidatorOptions validator_options; |
| TransformationContext transformation_context( |
| MakeUnique<FactManager>(context.get()), validator_options); |
| SetUpIrrelevantIdFacts(transformation_context.GetFactManager()); |
| |
| auto instruction_24_descriptor = MakeInstructionDescriptor(24, SpvOpIAdd, 0); |
| |
| // Replace the use of %23 in %24 with %22. |
| auto transformation = TransformationReplaceIrrelevantId( |
| MakeIdUseDescriptor(23, instruction_24_descriptor, 1), 22); |
| ASSERT_TRUE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); |
| |
| ASSERT_TRUE(IsValid(env, context.get())); |
| |
| std::string after_transformation = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %2 "main" |
| OpExecutionMode %2 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %2 "main" |
| OpName %3 "a" |
| OpName %4 "b" |
| %5 = OpTypeVoid |
| %6 = OpTypeFunction %5 |
| %7 = OpTypeBool |
| %8 = OpConstantTrue %7 |
| %9 = OpTypeInt 32 1 |
| %10 = OpTypePointer Function %9 |
| %11 = OpConstant %9 2 |
| %12 = OpTypeStruct %9 |
| %13 = OpTypeInt 32 0 |
| %14 = OpConstant %13 3 |
| %15 = OpTypeArray %12 %14 |
| %16 = OpTypePointer Function %15 |
| %17 = OpConstant %9 0 |
| %2 = OpFunction %5 None %6 |
| %18 = OpLabel |
| %3 = OpVariable %10 Function |
| %4 = OpVariable %10 Function |
| %19 = OpVariable %16 Function |
| OpStore %3 %11 |
| %20 = OpLoad %9 %3 |
| %21 = OpAccessChain %10 %19 %20 %17 |
| %22 = OpLoad %9 %21 |
| OpStore %4 %22 |
| %23 = OpLoad %9 %4 |
| %24 = OpIAdd %9 %20 %22 |
| %25 = OpISub %9 %23 %20 |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); |
| } |
| |
| } // namespace |
| } // namespace fuzz |
| } // namespace spvtools |