| // Copyright (c) 2020 André Perez Maselco |
| // |
| // 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_push_id_through_variable.h" |
| |
| #include "gtest/gtest.h" |
| #include "source/fuzz/fuzzer_util.h" |
| #include "source/fuzz/instruction_descriptor.h" |
| #include "test/fuzz/fuzz_test_util.h" |
| |
| namespace spvtools { |
| namespace fuzz { |
| namespace { |
| |
| TEST(TransformationPushIdThroughVariableTest, IsApplicable) { |
| std::string reference_shader = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %92 %52 %53 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpDecorate %92 BuiltIn FragCoord |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypeFloat 32 |
| %8 = OpTypeStruct %6 %7 |
| %9 = OpTypePointer Function %8 |
| %10 = OpTypeFunction %6 %9 |
| %14 = OpConstant %6 0 |
| %15 = OpTypePointer Function %6 |
| %51 = OpTypePointer Private %6 |
| %21 = OpConstant %6 2 |
| %23 = OpConstant %6 1 |
| %24 = OpConstant %7 1 |
| %25 = OpTypePointer Function %7 |
| %50 = OpTypePointer Private %7 |
| %34 = OpTypeBool |
| %35 = OpConstantFalse %34 |
| %60 = OpConstantNull %50 |
| %61 = OpUndef %51 |
| %52 = OpVariable %50 Private |
| %53 = OpVariable %51 Private |
| %80 = OpConstantComposite %8 %21 %24 |
| %90 = OpTypeVector %7 4 |
| %91 = OpTypePointer Input %90 |
| %92 = OpVariable %91 Input |
| %93 = OpConstantComposite %90 %24 %24 %24 %24 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %20 = OpVariable %9 Function |
| %27 = OpVariable %9 Function |
| %22 = OpAccessChain %15 %20 %14 |
| %44 = OpCopyObject %9 %20 |
| %26 = OpAccessChain %25 %20 %23 |
| %29 = OpFunctionCall %6 %12 %27 |
| %30 = OpAccessChain %15 %20 %14 |
| %45 = OpCopyObject %15 %30 |
| %81 = OpCopyObject %9 %27 |
| %33 = OpAccessChain %15 %20 %14 |
| OpSelectionMerge %37 None |
| OpBranchConditional %35 %36 %37 |
| %36 = OpLabel |
| %38 = OpAccessChain %15 %20 %14 |
| %40 = OpAccessChain %15 %20 %14 |
| %43 = OpAccessChain %15 %20 %14 |
| %82 = OpCopyObject %9 %27 |
| OpBranch %37 |
| %37 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| %12 = OpFunction %6 None %10 |
| %11 = OpFunctionParameter %9 |
| %13 = OpLabel |
| %46 = OpCopyObject %9 %11 |
| %16 = OpAccessChain %15 %11 %14 |
| %95 = OpCopyObject %8 %80 |
| OpReturnValue %21 |
| %100 = OpLabel |
| OpUnreachable |
| OpFunctionEnd |
| )"; |
| |
| const auto env = SPV_ENV_UNIVERSAL_1_4; |
| const auto consumer = nullptr; |
| const auto context = |
| BuildModule(env, consumer, reference_shader, kFuzzAssembleOption); |
| |
| spvtools::ValidatorOptions validator_options; |
| TransformationContext transformation_context( |
| MakeUnique<FactManager>(context.get()), validator_options); |
| // Tests the reference shader validity. |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, |
| kConsoleMessageConsumer)); |
| |
| // Tests |value_synonym_id| and |variable_id| are fresh ids. |
| uint32_t value_id = 21; |
| uint32_t value_synonym_id = 62; |
| uint32_t variable_id = 63; |
| uint32_t initializer_id = 23; |
| uint32_t variable_storage_class = SpvStorageClassPrivate; |
| auto instruction_descriptor = |
| MakeInstructionDescriptor(95, SpvOpReturnValue, 0); |
| auto transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_TRUE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| |
| // Tests |value_synonym_id| and |variable_id| are non-fresh ids. |
| value_id = 80; |
| value_synonym_id = 60; |
| variable_id = 61; |
| initializer_id = 80; |
| variable_storage_class = SpvStorageClassFunction; |
| instruction_descriptor = MakeInstructionDescriptor(38, SpvOpAccessChain, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_FALSE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| |
| // The instruction to insert before is not defined. |
| value_id = 80; |
| value_synonym_id = 62; |
| variable_id = 63; |
| initializer_id = 80; |
| variable_storage_class = SpvStorageClassFunction; |
| instruction_descriptor = MakeInstructionDescriptor(64, SpvOpAccessChain, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_FALSE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| |
| // Attempting to insert the store and load instructions |
| // before an OpVariable instruction. |
| value_id = 24; |
| value_synonym_id = 62; |
| variable_id = 63; |
| initializer_id = 24; |
| variable_storage_class = SpvStorageClassFunction; |
| instruction_descriptor = MakeInstructionDescriptor(27, SpvOpVariable, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_FALSE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| |
| // The block containing instruction descriptor must be reachable. |
| value_id = 80; |
| value_synonym_id = 62; |
| variable_id = 63; |
| initializer_id = 80; |
| variable_storage_class = SpvStorageClassFunction; |
| instruction_descriptor = MakeInstructionDescriptor(100, SpvOpUnreachable, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_FALSE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| |
| // Tests value instruction not available. |
| value_id = 64; |
| value_synonym_id = 62; |
| variable_id = 63; |
| initializer_id = 23; |
| variable_storage_class = SpvStorageClassFunction; |
| instruction_descriptor = MakeInstructionDescriptor(95, SpvOpReturnValue, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_FALSE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| |
| // Tests pointer type not available. |
| value_id = 80; |
| value_synonym_id = 62; |
| variable_id = 63; |
| initializer_id = 80; |
| variable_storage_class = SpvStorageClassPrivate; |
| instruction_descriptor = MakeInstructionDescriptor(95, SpvOpReturnValue, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_FALSE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| |
| // Tests not a private nor function storage class. |
| value_id = 93; |
| value_synonym_id = 62; |
| variable_id = 63; |
| initializer_id = 93; |
| variable_storage_class = SpvStorageClassInput; |
| instruction_descriptor = MakeInstructionDescriptor(95, SpvOpReturnValue, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| #ifndef NDEBUG |
| ASSERT_DEATH( |
| transformation.IsApplicable(context.get(), transformation_context), |
| "The variable storage class must be private or function"); |
| #endif |
| |
| // Tests value instruction not available before instruction. |
| value_id = 95; |
| value_synonym_id = 62; |
| variable_id = 63; |
| initializer_id = 80; |
| variable_storage_class = SpvStorageClassFunction; |
| instruction_descriptor = MakeInstructionDescriptor(40, SpvOpAccessChain, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_FALSE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| |
| // Variable initializer is not constant. |
| value_id = 95; |
| value_synonym_id = 62; |
| variable_id = 63; |
| initializer_id = 95; |
| variable_storage_class = SpvStorageClassFunction; |
| instruction_descriptor = MakeInstructionDescriptor(40, SpvOpAccessChain, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_FALSE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| |
| // Variable initializer has wrong type. |
| value_id = 95; |
| value_synonym_id = 62; |
| variable_id = 63; |
| initializer_id = 93; |
| variable_storage_class = SpvStorageClassFunction; |
| instruction_descriptor = MakeInstructionDescriptor(40, SpvOpAccessChain, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_FALSE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| } |
| |
| TEST(TransformationPushIdThroughVariableTest, Apply) { |
| std::string reference_shader = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %92 %52 %53 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpDecorate %92 BuiltIn FragCoord |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypeFloat 32 |
| %8 = OpTypeStruct %6 %7 |
| %9 = OpTypePointer Function %8 |
| %10 = OpTypeFunction %6 %9 |
| %14 = OpConstant %6 0 |
| %15 = OpTypePointer Function %6 |
| %51 = OpTypePointer Private %6 |
| %21 = OpConstant %6 2 |
| %23 = OpConstant %6 1 |
| %24 = OpConstant %7 1 |
| %25 = OpTypePointer Function %7 |
| %50 = OpTypePointer Private %7 |
| %34 = OpTypeBool |
| %35 = OpConstantFalse %34 |
| %60 = OpConstantNull %50 |
| %61 = OpUndef %51 |
| %52 = OpVariable %50 Private |
| %53 = OpVariable %51 Private |
| %80 = OpConstantComposite %8 %21 %24 |
| %90 = OpTypeVector %7 4 |
| %91 = OpTypePointer Input %90 |
| %92 = OpVariable %91 Input |
| %93 = OpConstantComposite %90 %24 %24 %24 %24 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %20 = OpVariable %9 Function |
| %27 = OpVariable %9 Function |
| OpStore %53 %21 |
| %22 = OpAccessChain %15 %20 %14 |
| %44 = OpCopyObject %9 %20 |
| %26 = OpAccessChain %25 %20 %23 |
| %29 = OpFunctionCall %6 %12 %27 |
| %30 = OpAccessChain %15 %20 %14 |
| %45 = OpCopyObject %15 %30 |
| %81 = OpCopyObject %9 %27 |
| %33 = OpAccessChain %15 %20 %14 |
| OpSelectionMerge %37 None |
| OpBranchConditional %35 %36 %37 |
| %36 = OpLabel |
| %38 = OpAccessChain %15 %20 %14 |
| %40 = OpAccessChain %15 %20 %14 |
| %43 = OpAccessChain %15 %20 %14 |
| %82 = OpCopyObject %9 %27 |
| OpBranch %37 |
| %37 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| %12 = OpFunction %6 None %10 |
| %11 = OpFunctionParameter %9 |
| %13 = OpLabel |
| %46 = OpCopyObject %9 %11 |
| %16 = OpAccessChain %15 %11 %14 |
| %95 = OpCopyObject %8 %80 |
| OpReturnValue %21 |
| OpFunctionEnd |
| )"; |
| |
| const auto env = SPV_ENV_UNIVERSAL_1_4; |
| const auto consumer = nullptr; |
| const auto context = |
| BuildModule(env, consumer, reference_shader, kFuzzAssembleOption); |
| |
| spvtools::ValidatorOptions validator_options; |
| TransformationContext transformation_context( |
| MakeUnique<FactManager>(context.get()), validator_options); |
| uint32_t value_id = 80; |
| uint32_t value_synonym_id = 100; |
| uint32_t variable_id = 101; |
| uint32_t initializer_id = 80; |
| uint32_t variable_storage_class = SpvStorageClassFunction; |
| auto instruction_descriptor = |
| MakeInstructionDescriptor(38, SpvOpAccessChain, 0); |
| auto transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_EQ(nullptr, context->get_def_use_mgr()->GetDef(value_synonym_id)); |
| ASSERT_EQ(nullptr, context->get_instr_block(value_synonym_id)); |
| ASSERT_EQ(nullptr, context->get_def_use_mgr()->GetDef(variable_id)); |
| ASSERT_EQ(nullptr, context->get_instr_block(variable_id)); |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); |
| ASSERT_EQ(SpvOpLoad, |
| context->get_def_use_mgr()->GetDef(value_synonym_id)->opcode()); |
| ASSERT_EQ(36, context->get_instr_block(value_synonym_id)->id()); |
| ASSERT_EQ(SpvOpVariable, |
| context->get_def_use_mgr()->GetDef(variable_id)->opcode()); |
| ASSERT_EQ(5, context->get_instr_block(variable_id)->id()); |
| uint32_t variable_use_count = 0; |
| context->get_def_use_mgr()->ForEachUse( |
| variable_id, |
| [&variable_use_count](opt::Instruction* inst, uint32_t /*unused*/) { |
| ASSERT_TRUE(inst->opcode() == SpvOpLoad || |
| inst->opcode() == SpvOpStore); |
| variable_use_count++; |
| }); |
| ASSERT_EQ(2, variable_use_count); |
| |
| value_id = 21; |
| value_synonym_id = 102; |
| variable_id = 103; |
| initializer_id = 21; |
| variable_storage_class = SpvStorageClassFunction; |
| instruction_descriptor = MakeInstructionDescriptor(38, SpvOpAccessChain, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); |
| |
| value_id = 95; |
| value_synonym_id = 104; |
| variable_id = 105; |
| initializer_id = 80; |
| variable_storage_class = SpvStorageClassFunction; |
| instruction_descriptor = MakeInstructionDescriptor(95, SpvOpReturnValue, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); |
| |
| value_id = 80; |
| value_synonym_id = 106; |
| variable_id = 107; |
| initializer_id = 80; |
| variable_storage_class = SpvStorageClassFunction; |
| instruction_descriptor = MakeInstructionDescriptor(95, SpvOpReturnValue, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); |
| |
| value_id = 21; |
| value_synonym_id = 108; |
| variable_id = 109; |
| initializer_id = 21; |
| variable_storage_class = SpvStorageClassPrivate; |
| instruction_descriptor = MakeInstructionDescriptor(95, SpvOpReturnValue, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); |
| |
| value_id = 23; |
| value_synonym_id = 110; |
| variable_id = 111; |
| initializer_id = 21; |
| variable_storage_class = SpvStorageClassPrivate; |
| instruction_descriptor = MakeInstructionDescriptor(27, SpvOpStore, 0); |
| transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); |
| |
| std::string variant_shader = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %92 %52 %53 %109 %111 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpDecorate %92 BuiltIn FragCoord |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypeFloat 32 |
| %8 = OpTypeStruct %6 %7 |
| %9 = OpTypePointer Function %8 |
| %10 = OpTypeFunction %6 %9 |
| %14 = OpConstant %6 0 |
| %15 = OpTypePointer Function %6 |
| %51 = OpTypePointer Private %6 |
| %21 = OpConstant %6 2 |
| %23 = OpConstant %6 1 |
| %24 = OpConstant %7 1 |
| %25 = OpTypePointer Function %7 |
| %50 = OpTypePointer Private %7 |
| %34 = OpTypeBool |
| %35 = OpConstantFalse %34 |
| %60 = OpConstantNull %50 |
| %61 = OpUndef %51 |
| %52 = OpVariable %50 Private |
| %53 = OpVariable %51 Private |
| %80 = OpConstantComposite %8 %21 %24 |
| %90 = OpTypeVector %7 4 |
| %91 = OpTypePointer Input %90 |
| %92 = OpVariable %91 Input |
| %93 = OpConstantComposite %90 %24 %24 %24 %24 |
| %109 = OpVariable %51 Private %21 |
| %111 = OpVariable %51 Private %21 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %103 = OpVariable %15 Function %21 |
| %101 = OpVariable %9 Function %80 |
| %20 = OpVariable %9 Function |
| %27 = OpVariable %9 Function |
| OpStore %111 %23 |
| %110 = OpLoad %6 %111 |
| OpStore %53 %21 |
| %22 = OpAccessChain %15 %20 %14 |
| %44 = OpCopyObject %9 %20 |
| %26 = OpAccessChain %25 %20 %23 |
| %29 = OpFunctionCall %6 %12 %27 |
| %30 = OpAccessChain %15 %20 %14 |
| %45 = OpCopyObject %15 %30 |
| %81 = OpCopyObject %9 %27 |
| %33 = OpAccessChain %15 %20 %14 |
| OpSelectionMerge %37 None |
| OpBranchConditional %35 %36 %37 |
| %36 = OpLabel |
| OpStore %101 %80 |
| %100 = OpLoad %8 %101 |
| OpStore %103 %21 |
| %102 = OpLoad %6 %103 |
| %38 = OpAccessChain %15 %20 %14 |
| %40 = OpAccessChain %15 %20 %14 |
| %43 = OpAccessChain %15 %20 %14 |
| %82 = OpCopyObject %9 %27 |
| OpBranch %37 |
| %37 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| %12 = OpFunction %6 None %10 |
| %11 = OpFunctionParameter %9 |
| %13 = OpLabel |
| %107 = OpVariable %9 Function %80 |
| %105 = OpVariable %9 Function %80 |
| %46 = OpCopyObject %9 %11 |
| %16 = OpAccessChain %15 %11 %14 |
| %95 = OpCopyObject %8 %80 |
| OpStore %105 %95 |
| %104 = OpLoad %8 %105 |
| OpStore %107 %80 |
| %106 = OpLoad %8 %107 |
| OpStore %109 %21 |
| %108 = OpLoad %6 %109 |
| OpReturnValue %21 |
| OpFunctionEnd |
| )"; |
| |
| ASSERT_TRUE(IsEqual(env, variant_shader, context.get())); |
| ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous( |
| MakeDataDescriptor(80, {}), MakeDataDescriptor(100, {}))); |
| ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous( |
| MakeDataDescriptor(21, {}), MakeDataDescriptor(102, {}))); |
| ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous( |
| MakeDataDescriptor(95, {}), MakeDataDescriptor(104, {}))); |
| ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous( |
| MakeDataDescriptor(80, {}), MakeDataDescriptor(106, {}))); |
| ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous( |
| MakeDataDescriptor(21, {}), MakeDataDescriptor(108, {}))); |
| } |
| |
| TEST(TransformationPushIdThroughVariableTest, AddSynonymsForRelevantIds) { |
| std::string reference_shader = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %92 %52 %53 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpDecorate %92 BuiltIn FragCoord |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypeFloat 32 |
| %8 = OpTypeStruct %6 %7 |
| %9 = OpTypePointer Function %8 |
| %10 = OpTypeFunction %6 %9 |
| %14 = OpConstant %6 0 |
| %15 = OpTypePointer Function %6 |
| %51 = OpTypePointer Private %6 |
| %21 = OpConstant %6 2 |
| %23 = OpConstant %6 1 |
| %24 = OpConstant %7 1 |
| %25 = OpTypePointer Function %7 |
| %50 = OpTypePointer Private %7 |
| %34 = OpTypeBool |
| %35 = OpConstantFalse %34 |
| %60 = OpConstantNull %50 |
| %61 = OpUndef %51 |
| %52 = OpVariable %50 Private |
| %53 = OpVariable %51 Private |
| %80 = OpConstantComposite %8 %21 %24 |
| %90 = OpTypeVector %7 4 |
| %91 = OpTypePointer Input %90 |
| %92 = OpVariable %91 Input |
| %93 = OpConstantComposite %90 %24 %24 %24 %24 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %20 = OpVariable %9 Function |
| %27 = OpVariable %9 Function |
| %22 = OpAccessChain %15 %20 %14 |
| %44 = OpCopyObject %9 %20 |
| %26 = OpAccessChain %25 %20 %23 |
| %29 = OpFunctionCall %6 %12 %27 |
| %30 = OpAccessChain %15 %20 %14 |
| %45 = OpCopyObject %15 %30 |
| %81 = OpCopyObject %9 %27 |
| %33 = OpAccessChain %15 %20 %14 |
| OpSelectionMerge %37 None |
| OpBranchConditional %35 %36 %37 |
| %36 = OpLabel |
| %38 = OpAccessChain %15 %20 %14 |
| %40 = OpAccessChain %15 %20 %14 |
| %43 = OpAccessChain %15 %20 %14 |
| %82 = OpCopyObject %9 %27 |
| OpBranch %37 |
| %37 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| %12 = OpFunction %6 None %10 |
| %11 = OpFunctionParameter %9 |
| %13 = OpLabel |
| %46 = OpCopyObject %9 %11 |
| %16 = OpAccessChain %15 %11 %14 |
| %95 = OpCopyObject %8 %80 |
| OpReturnValue %21 |
| %100 = OpLabel |
| OpUnreachable |
| OpFunctionEnd |
| )"; |
| |
| const auto env = SPV_ENV_UNIVERSAL_1_4; |
| const auto consumer = nullptr; |
| const auto context = |
| BuildModule(env, consumer, reference_shader, kFuzzAssembleOption); |
| |
| spvtools::ValidatorOptions validator_options; |
| TransformationContext transformation_context( |
| MakeUnique<FactManager>(context.get()), validator_options); |
| // Tests the reference shader validity. |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, |
| kConsoleMessageConsumer)); |
| |
| uint32_t value_id = 21; |
| uint32_t value_synonym_id = 62; |
| uint32_t variable_id = 63; |
| uint32_t initializer_id = 23; |
| uint32_t variable_storage_class = SpvStorageClassPrivate; |
| auto instruction_descriptor = |
| MakeInstructionDescriptor(95, SpvOpReturnValue, 0); |
| auto transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_TRUE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, |
| kConsoleMessageConsumer)); |
| ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous( |
| MakeDataDescriptor(21, {}), MakeDataDescriptor(62, {}))); |
| } |
| |
| TEST(TransformationPushIdThroughVariableTest, DontAddSynonymsForIrrelevantIds) { |
| std::string reference_shader = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %92 %52 %53 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpDecorate %92 BuiltIn FragCoord |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypeFloat 32 |
| %8 = OpTypeStruct %6 %7 |
| %9 = OpTypePointer Function %8 |
| %10 = OpTypeFunction %6 %9 |
| %14 = OpConstant %6 0 |
| %15 = OpTypePointer Function %6 |
| %51 = OpTypePointer Private %6 |
| %21 = OpConstant %6 2 |
| %23 = OpConstant %6 1 |
| %24 = OpConstant %7 1 |
| %25 = OpTypePointer Function %7 |
| %50 = OpTypePointer Private %7 |
| %34 = OpTypeBool |
| %35 = OpConstantFalse %34 |
| %60 = OpConstantNull %50 |
| %61 = OpUndef %51 |
| %52 = OpVariable %50 Private |
| %53 = OpVariable %51 Private |
| %80 = OpConstantComposite %8 %21 %24 |
| %90 = OpTypeVector %7 4 |
| %91 = OpTypePointer Input %90 |
| %92 = OpVariable %91 Input |
| %93 = OpConstantComposite %90 %24 %24 %24 %24 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %20 = OpVariable %9 Function |
| %27 = OpVariable %9 Function |
| %22 = OpAccessChain %15 %20 %14 |
| %44 = OpCopyObject %9 %20 |
| %26 = OpAccessChain %25 %20 %23 |
| %29 = OpFunctionCall %6 %12 %27 |
| %30 = OpAccessChain %15 %20 %14 |
| %45 = OpCopyObject %15 %30 |
| %81 = OpCopyObject %9 %27 |
| %33 = OpAccessChain %15 %20 %14 |
| OpSelectionMerge %37 None |
| OpBranchConditional %35 %36 %37 |
| %36 = OpLabel |
| %38 = OpAccessChain %15 %20 %14 |
| %40 = OpAccessChain %15 %20 %14 |
| %43 = OpAccessChain %15 %20 %14 |
| %82 = OpCopyObject %9 %27 |
| OpBranch %37 |
| %37 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| %12 = OpFunction %6 None %10 |
| %11 = OpFunctionParameter %9 |
| %13 = OpLabel |
| %46 = OpCopyObject %9 %11 |
| %16 = OpAccessChain %15 %11 %14 |
| %95 = OpCopyObject %8 %80 |
| OpReturnValue %21 |
| %100 = OpLabel |
| OpUnreachable |
| OpFunctionEnd |
| )"; |
| |
| const auto env = SPV_ENV_UNIVERSAL_1_4; |
| const auto consumer = nullptr; |
| const auto context = |
| BuildModule(env, consumer, reference_shader, kFuzzAssembleOption); |
| |
| spvtools::ValidatorOptions validator_options; |
| TransformationContext transformation_context( |
| MakeUnique<FactManager>(context.get()), validator_options); |
| // Tests the reference shader validity. |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, |
| kConsoleMessageConsumer)); |
| |
| transformation_context.GetFactManager()->AddFactIdIsIrrelevant(21); |
| |
| uint32_t value_id = 21; |
| uint32_t value_synonym_id = 62; |
| uint32_t variable_id = 63; |
| uint32_t initializer_id = 23; |
| uint32_t variable_storage_class = SpvStorageClassPrivate; |
| auto instruction_descriptor = |
| MakeInstructionDescriptor(95, SpvOpReturnValue, 0); |
| auto transformation = TransformationPushIdThroughVariable( |
| value_id, value_synonym_id, variable_id, variable_storage_class, |
| initializer_id, instruction_descriptor); |
| ASSERT_TRUE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, |
| kConsoleMessageConsumer)); |
| ASSERT_FALSE(transformation_context.GetFactManager()->IsSynonymous( |
| MakeDataDescriptor(21, {}), MakeDataDescriptor(62, {}))); |
| } |
| |
| TEST(TransformationPushIdThroughVariableTest, DontAddSynonymsInDeadBlocks) { |
| std::string reference_shader = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypeVector %6 2 |
| %8 = OpTypePointer Function %7 |
| %10 = OpConstant %6 0 |
| %11 = OpConstant %6 1 |
| %12 = OpConstantComposite %7 %10 %11 |
| %13 = OpTypeBool |
| %50 = OpTypePointer Function %13 |
| %14 = OpConstantFalse %13 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %9 = OpVariable %8 Function |
| OpStore %9 %12 |
| OpSelectionMerge %16 None |
| OpBranchConditional %14 %15 %16 |
| %15 = OpLabel |
| OpBranch %16 |
| %16 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| const auto env = SPV_ENV_UNIVERSAL_1_4; |
| const auto consumer = nullptr; |
| const auto context = |
| BuildModule(env, consumer, reference_shader, kFuzzAssembleOption); |
| |
| spvtools::ValidatorOptions validator_options; |
| TransformationContext transformation_context( |
| MakeUnique<FactManager>(context.get()), validator_options); |
| // Tests the reference shader validity. |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, |
| kConsoleMessageConsumer)); |
| |
| transformation_context.GetFactManager()->AddFactBlockIsDead(15); |
| auto transformation = TransformationPushIdThroughVariable( |
| 14, 100, 101, SpvStorageClassFunction, 14, |
| MakeInstructionDescriptor(15, SpvOpBranch, 0)); |
| ASSERT_TRUE( |
| transformation.IsApplicable(context.get(), transformation_context)); |
| ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); |
| ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options, |
| kConsoleMessageConsumer)); |
| ASSERT_FALSE(transformation_context.GetFactManager()->IsSynonymous( |
| MakeDataDescriptor(14, {}), MakeDataDescriptor(100, {}))); |
| } |
| |
| } // namespace |
| } // namespace fuzz |
| } // namespace spvtools |
