// 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_access_chain.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(TransformationAccessChainTest, BasicTest) { std::string shader = R"( OpCapability Shader OpCapability VariablePointers %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Fragment %4 "main" %48 %54 OpExecutionMode %4 OriginUpperLeft OpSource ESSL 310 %2 = OpTypeVoid %3 = OpTypeFunction %2 %6 = OpTypeFloat 32 %7 = OpTypeVector %6 2 %50 = OpTypeMatrix %7 2 %70 = OpTypePointer Function %7 %71 = OpTypePointer Function %50 %8 = OpTypeStruct %7 %6 %9 = OpTypePointer Function %8 %10 = OpTypeInt 32 1 %11 = OpTypePointer Function %10 %12 = OpTypeFunction %10 %9 %11 %17 = OpConstant %10 0 %18 = OpTypeInt 32 0 %19 = OpConstant %18 0 %20 = OpTypePointer Function %6 %99 = OpTypePointer Private %6 %29 = OpConstant %6 0 %30 = OpConstant %6 1 %31 = OpConstantComposite %7 %29 %30 %32 = OpConstant %6 2 %33 = OpConstantComposite %8 %31 %32 %35 = OpConstant %10 10 %51 = OpConstant %18 10 %80 = OpConstant %18 0 %81 = OpConstant %10 1 %82 = OpConstant %18 2 %83 = OpConstant %10 3 %84 = OpConstant %18 4 %85 = OpConstant %10 5 %52 = OpTypeArray %50 %51 %53 = OpTypePointer Private %52 %46 = OpConstantNull %9 %47 = OpTypePointer Private %8 %48 = OpVariable %47 Private %54 = OpVariable %53 Private %4 = OpFunction %2 None %3 %5 = OpLabel %28 = OpVariable %9 Function %34 = OpVariable %11 Function %36 = OpVariable %9 Function %38 = OpVariable %11 Function %44 = OpCopyObject %9 %36 OpStore %28 %33 OpStore %34 %35 %37 = OpLoad %8 %28 OpStore %36 %37 %39 = OpLoad %10 %34 OpStore %38 %39 %40 = OpFunctionCall %10 %15 %36 %38 %41 = OpLoad %10 %34 %42 = OpIAdd %10 %41 %40 OpStore %34 %42 OpReturn OpFunctionEnd %15 = OpFunction %10 None %12 %13 = OpFunctionParameter %9 %14 = OpFunctionParameter %11 %16 = OpLabel %21 = OpAccessChain %20 %13 %17 %19 %43 = OpCopyObject %9 %13 %22 = OpLoad %6 %21 %23 = OpConvertFToS %10 %22 %24 = OpLoad %10 %14 %25 = OpIAdd %10 %23 %24 OpReturnValue %25 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)); // Types: // Ptr | Pointee | Storage class | GLSL for pointee | Ids of this type // ----+---------+---------------+---------------------+------------------ // 9 | 8 | Function | struct(vec2, float) | 28, 36, 44, 13, 43 // 11 | 10 | Function | int | 34, 38, 14 // 20 | 6 | Function | float | - // 99 | 6 | Private | float | - // 53 | 52 | Private | mat2x2[10] | 54 // 47 | 8 | Private | struct(vec2, float) | 48 // 70 | 7 | Function | vec2 | - // 71 | 59 | Function | mat2x2 | - // Indices 0-5 are in ids 80-85 TransformationContext transformation_context( MakeUnique(context.get()), validator_options); transformation_context.GetFactManager()->AddFactValueOfPointeeIsIrrelevant( 54); // Check the case where the index type is not a 32-bit integer. TransformationAccessChain invalid_index_example1( 101, 28, {29}, MakeInstructionDescriptor(42, spv::Op::OpReturn, 0)); // Since the index is not a 32-bit integer type but a 32-bit float type, // ValidIndexComposite should return false and thus the transformation is not // applicable. ASSERT_FALSE(invalid_index_example1.IsApplicable(context.get(), transformation_context)); // Bad: id is not fresh ASSERT_FALSE( TransformationAccessChain( 43, 43, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: pointer id does not exist ASSERT_FALSE( TransformationAccessChain( 100, 1000, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: pointer id is not a type ASSERT_FALSE( TransformationAccessChain( 100, 5, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: pointer id is not a pointer ASSERT_FALSE( TransformationAccessChain( 100, 23, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: index id does not exist ASSERT_FALSE( TransformationAccessChain( 100, 43, {1000}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: index id is not a constant and the pointer refers to a struct ASSERT_FALSE( TransformationAccessChain( 100, 43, {24}, MakeInstructionDescriptor(25, spv::Op::OpIAdd, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: too many indices ASSERT_FALSE(TransformationAccessChain( 100, 43, {80, 80, 80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: index id is out of bounds when accessing a struct ASSERT_FALSE( TransformationAccessChain( 100, 43, {83, 80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: attempt to insert before variable ASSERT_FALSE( TransformationAccessChain( 100, 34, {}, MakeInstructionDescriptor(36, spv::Op::OpVariable, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: OpTypeBool must be present in the module to clamp an index ASSERT_FALSE( TransformationAccessChain( 100, 36, {80, 81}, MakeInstructionDescriptor(37, spv::Op::OpStore, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: pointer not available ASSERT_FALSE(TransformationAccessChain( 100, 43, {80}, MakeInstructionDescriptor(21, spv::Op::OpAccessChain, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: instruction descriptor does not identify anything ASSERT_FALSE( TransformationAccessChain( 100, 43, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 100)) .IsApplicable(context.get(), transformation_context)); #ifndef NDEBUG // Bad: pointer is null ASSERT_DEATH( TransformationAccessChain( 100, 46, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0)) .IsApplicable(context.get(), transformation_context), "Access chains should not be created from null/undefined pointers"); #endif // Bad: pointer to result type does not exist ASSERT_FALSE( TransformationAccessChain( 100, 52, {0}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0)) .IsApplicable(context.get(), transformation_context)); { TransformationAccessChain transformation( 100, 43, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 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()->PointeeValueIsIrrelevant(100)); } { TransformationAccessChain transformation( 101, 28, {81}, MakeInstructionDescriptor(42, spv::Op::OpReturn, 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()->PointeeValueIsIrrelevant(101)); } { TransformationAccessChain transformation( 102, 44, {}, MakeInstructionDescriptor(44, spv::Op::OpStore, 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()->PointeeValueIsIrrelevant(103)); } { TransformationAccessChain transformation( 103, 13, {80}, MakeInstructionDescriptor(21, spv::Op::OpAccessChain, 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()->PointeeValueIsIrrelevant(104)); } { TransformationAccessChain transformation( 104, 34, {}, MakeInstructionDescriptor(44, spv::Op::OpStore, 1)); 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()->PointeeValueIsIrrelevant(105)); } { TransformationAccessChain transformation( 105, 38, {}, MakeInstructionDescriptor(40, spv::Op::OpFunctionCall, 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()->PointeeValueIsIrrelevant(106)); } { TransformationAccessChain transformation( 106, 14, {}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 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()->PointeeValueIsIrrelevant(107)); } { // Check the case where the access chain's base pointer has the irrelevant // pointee fact; the resulting access chain should inherit this fact. TransformationAccessChain transformation( 107, 54, {}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 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_TRUE( transformation_context.GetFactManager()->PointeeValueIsIrrelevant(54)); } std::string after_transformation = R"( OpCapability Shader OpCapability VariablePointers %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Fragment %4 "main" %48 %54 OpExecutionMode %4 OriginUpperLeft OpSource ESSL 310 %2 = OpTypeVoid %3 = OpTypeFunction %2 %6 = OpTypeFloat 32 %7 = OpTypeVector %6 2 %50 = OpTypeMatrix %7 2 %70 = OpTypePointer Function %7 %71 = OpTypePointer Function %50 %8 = OpTypeStruct %7 %6 %9 = OpTypePointer Function %8 %10 = OpTypeInt 32 1 %11 = OpTypePointer Function %10 %12 = OpTypeFunction %10 %9 %11 %17 = OpConstant %10 0 %18 = OpTypeInt 32 0 %19 = OpConstant %18 0 %20 = OpTypePointer Function %6 %99 = OpTypePointer Private %6 %29 = OpConstant %6 0 %30 = OpConstant %6 1 %31 = OpConstantComposite %7 %29 %30 %32 = OpConstant %6 2 %33 = OpConstantComposite %8 %31 %32 %35 = OpConstant %10 10 %51 = OpConstant %18 10 %80 = OpConstant %18 0 %81 = OpConstant %10 1 %82 = OpConstant %18 2 %83 = OpConstant %10 3 %84 = OpConstant %18 4 %85 = OpConstant %10 5 %52 = OpTypeArray %50 %51 %53 = OpTypePointer Private %52 %46 = OpConstantNull %9 %47 = OpTypePointer Private %8 %48 = OpVariable %47 Private %54 = OpVariable %53 Private %4 = OpFunction %2 None %3 %5 = OpLabel %28 = OpVariable %9 Function %34 = OpVariable %11 Function %36 = OpVariable %9 Function %38 = OpVariable %11 Function %44 = OpCopyObject %9 %36 %102 = OpAccessChain %9 %44 OpStore %28 %33 %104 = OpAccessChain %11 %34 OpStore %34 %35 %37 = OpLoad %8 %28 OpStore %36 %37 %39 = OpLoad %10 %34 OpStore %38 %39 %105 = OpAccessChain %11 %38 %40 = OpFunctionCall %10 %15 %36 %38 %41 = OpLoad %10 %34 %42 = OpIAdd %10 %41 %40 OpStore %34 %42 %101 = OpAccessChain %20 %28 %81 OpReturn OpFunctionEnd %15 = OpFunction %10 None %12 %13 = OpFunctionParameter %9 %14 = OpFunctionParameter %11 %16 = OpLabel %103 = OpAccessChain %70 %13 %80 %21 = OpAccessChain %20 %13 %17 %19 %43 = OpCopyObject %9 %13 %22 = OpLoad %6 %21 %23 = OpConvertFToS %10 %22 %100 = OpAccessChain %70 %43 %80 %106 = OpAccessChain %11 %14 %107 = OpAccessChain %53 %54 %24 = OpLoad %10 %14 %25 = OpIAdd %10 %23 %24 OpReturnValue %25 OpFunctionEnd )"; ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); } TEST(TransformationAccessChainTest, StructIndexMustBeConstant) { std::string 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 %20 = OpUndef %6 %7 = OpTypeStruct %6 %6 %8 = OpTypePointer Function %7 %10 = OpConstant %6 0 %11 = OpConstant %6 2 %12 = OpTypePointer Function %6 %4 = OpFunction %2 None %3 %5 = OpLabel %9 = OpVariable %8 Function 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(context.get()), validator_options); // Bad: %9 is a pointer to a struct, but %20 is not a constant. ASSERT_FALSE( TransformationAccessChain( 100, 9, {20}, MakeInstructionDescriptor(9, spv::Op::OpReturn, 0)) .IsApplicable(context.get(), transformation_context)); } TEST(TransformationAccessChainTest, IsomorphicStructs) { std::string shader = R"( OpCapability Shader %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Fragment %4 "main" %11 %12 OpExecutionMode %4 OriginUpperLeft OpSource ESSL 310 %2 = OpTypeVoid %3 = OpTypeFunction %2 %6 = OpTypeFloat 32 %7 = OpTypeStruct %6 %8 = OpTypePointer Private %7 %9 = OpTypeStruct %6 %10 = OpTypePointer Private %9 %11 = OpVariable %8 Private %12 = OpVariable %10 Private %4 = OpFunction %2 None %3 %5 = 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(context.get()), validator_options); { TransformationAccessChain transformation( 100, 11, {}, MakeInstructionDescriptor(5, spv::Op::OpReturn, 0)); ASSERT_TRUE( transformation.IsApplicable(context.get(), transformation_context)); ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed( context.get(), validator_options, kConsoleMessageConsumer)); } { TransformationAccessChain transformation( 101, 12, {}, MakeInstructionDescriptor(5, spv::Op::OpReturn, 0)); 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" %11 %12 OpExecutionMode %4 OriginUpperLeft OpSource ESSL 310 %2 = OpTypeVoid %3 = OpTypeFunction %2 %6 = OpTypeFloat 32 %7 = OpTypeStruct %6 %8 = OpTypePointer Private %7 %9 = OpTypeStruct %6 %10 = OpTypePointer Private %9 %11 = OpVariable %8 Private %12 = OpVariable %10 Private %4 = OpFunction %2 None %3 %5 = OpLabel %100 = OpAccessChain %8 %11 %101 = OpAccessChain %10 %12 OpReturn OpFunctionEnd )"; ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); } TEST(TransformationAccessChainTest, ClampingVariables) { std::string shader = R"( OpCapability Shader %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Fragment %2 "main" %3 OpExecutionMode %2 OriginUpperLeft OpSource ESSL 310 %4 = OpTypeVoid %5 = OpTypeBool %6 = OpTypeFunction %4 %7 = OpTypeInt 32 1 %8 = OpTypeVector %7 4 %9 = OpTypePointer Function %8 %10 = OpConstant %7 0 %11 = OpConstant %7 1 %12 = OpConstant %7 3 %13 = OpConstant %7 2 %14 = OpConstantComposite %8 %10 %11 %12 %13 %15 = OpTypePointer Function %7 %16 = OpTypeInt 32 0 %17 = OpConstant %16 1 %18 = OpConstant %16 3 %19 = OpTypeStruct %8 %20 = OpTypePointer Function %19 %21 = OpConstant %7 9 %22 = OpConstant %16 10 %23 = OpTypeArray %19 %22 %24 = OpTypePointer Function %23 %25 = OpTypeFloat 32 %26 = OpTypeVector %25 4 %27 = OpTypePointer Output %26 %3 = OpVariable %27 Output %2 = OpFunction %4 None %6 %28 = OpLabel %29 = OpVariable %9 Function %30 = OpVariable %15 Function %31 = OpVariable %15 Function %32 = OpVariable %20 Function %33 = OpVariable %15 Function %34 = OpVariable %24 Function OpStore %29 %14 OpStore %30 %10 %36 = OpLoad %7 %30 %38 = OpLoad %8 %29 %39 = OpCompositeConstruct %19 %38 %40 = OpLoad %7 %30 %42 = OpLoad %8 %29 %43 = OpCompositeConstruct %19 %42 %45 = OpLoad %7 %30 %46 = OpLoad %7 %33 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(context.get()), validator_options); // Bad: no ids given for clamping ASSERT_FALSE( TransformationAccessChain( 100, 29, {17}, MakeInstructionDescriptor(36, spv::Op::OpLoad, 0)) .IsApplicable(context.get(), transformation_context)); // Bad: an id given for clamping is not fresh ASSERT_FALSE(TransformationAccessChain( 100, 29, {17}, MakeInstructionDescriptor(36, spv::Op::OpLoad, 0), {{46, 201}}) .IsApplicable(context.get(), transformation_context)); // Bad: an id given for clamping is not fresh ASSERT_FALSE(TransformationAccessChain( 100, 29, {17}, MakeInstructionDescriptor(36, spv::Op::OpLoad, 0), {{200, 46}}) .IsApplicable(context.get(), transformation_context)); // Bad: an id given for clamping is the same as the id for the access chain ASSERT_FALSE(TransformationAccessChain( 100, 29, {17}, MakeInstructionDescriptor(36, spv::Op::OpLoad, 0), {{100, 201}}) .IsApplicable(context.get(), transformation_context)); // Bad: the fresh ids given are not distinct ASSERT_FALSE(TransformationAccessChain( 100, 29, {17}, MakeInstructionDescriptor(36, spv::Op::OpLoad, 0), {{200, 200}}) .IsApplicable(context.get(), transformation_context)); // Bad: not enough ids given for clamping (2 pairs needed) ASSERT_FALSE(TransformationAccessChain( 104, 34, {45, 10, 46}, MakeInstructionDescriptor(46, spv::Op::OpReturn, 0), {{208, 209}, {209, 211}}) .IsApplicable(context.get(), transformation_context)); // Bad: the fresh ids given are not distinct ASSERT_FALSE(TransformationAccessChain( 104, 34, {45, 10, 46}, MakeInstructionDescriptor(46, spv::Op::OpReturn, 0), {{208, 209}, {209, 211}}) .IsApplicable(context.get(), transformation_context)); { TransformationAccessChain transformation( 100, 29, {17}, MakeInstructionDescriptor(36, spv::Op::OpLoad, 0), {{200, 201}}); ASSERT_TRUE( transformation.IsApplicable(context.get(), transformation_context)); ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed( context.get(), validator_options, kConsoleMessageConsumer)); } { TransformationAccessChain transformation( 101, 29, {36}, MakeInstructionDescriptor(38, spv::Op::OpLoad, 0), {{202, 203}}); ASSERT_TRUE( transformation.IsApplicable(context.get(), transformation_context)); ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed( context.get(), validator_options, kConsoleMessageConsumer)); } { TransformationAccessChain transformation( 102, 32, {10, 40}, MakeInstructionDescriptor(42, spv::Op::OpLoad, 0), {{204, 205}}); ASSERT_TRUE( transformation.IsApplicable(context.get(), transformation_context)); ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed( context.get(), validator_options, kConsoleMessageConsumer)); } { TransformationAccessChain transformation( 103, 34, {11}, MakeInstructionDescriptor(45, spv::Op::OpLoad, 0), {{206, 207}}); ASSERT_TRUE( transformation.IsApplicable(context.get(), transformation_context)); ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context); ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed( context.get(), validator_options, kConsoleMessageConsumer)); } { TransformationAccessChain transformation( 104, 34, {45, 10, 46}, MakeInstructionDescriptor(46, spv::Op::OpReturn, 0), {{208, 209}, {210, 211}}); 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 %2 "main" %3 OpExecutionMode %2 OriginUpperLeft OpSource ESSL 310 %4 = OpTypeVoid %5 = OpTypeBool %6 = OpTypeFunction %4 %7 = OpTypeInt 32 1 %8 = OpTypeVector %7 4 %9 = OpTypePointer Function %8 %10 = OpConstant %7 0 %11 = OpConstant %7 1 %12 = OpConstant %7 3 %13 = OpConstant %7 2 %14 = OpConstantComposite %8 %10 %11 %12 %13 %15 = OpTypePointer Function %7 %16 = OpTypeInt 32 0 %17 = OpConstant %16 1 %18 = OpConstant %16 3 %19 = OpTypeStruct %8 %20 = OpTypePointer Function %19 %21 = OpConstant %7 9 %22 = OpConstant %16 10 %23 = OpTypeArray %19 %22 %24 = OpTypePointer Function %23 %25 = OpTypeFloat 32 %26 = OpTypeVector %25 4 %27 = OpTypePointer Output %26 %3 = OpVariable %27 Output %2 = OpFunction %4 None %6 %28 = OpLabel %29 = OpVariable %9 Function %30 = OpVariable %15 Function %31 = OpVariable %15 Function %32 = OpVariable %20 Function %33 = OpVariable %15 Function %34 = OpVariable %24 Function OpStore %29 %14 OpStore %30 %10 %200 = OpULessThanEqual %5 %17 %18 %201 = OpSelect %16 %200 %17 %18 %100 = OpAccessChain %15 %29 %201 %36 = OpLoad %7 %30 %202 = OpULessThanEqual %5 %36 %12 %203 = OpSelect %7 %202 %36 %12 %101 = OpAccessChain %15 %29 %203 %38 = OpLoad %8 %29 %39 = OpCompositeConstruct %19 %38 %40 = OpLoad %7 %30 %204 = OpULessThanEqual %5 %40 %12 %205 = OpSelect %7 %204 %40 %12 %102 = OpAccessChain %15 %32 %10 %205 %42 = OpLoad %8 %29 %43 = OpCompositeConstruct %19 %42 %206 = OpULessThanEqual %5 %11 %21 %207 = OpSelect %7 %206 %11 %21 %103 = OpAccessChain %20 %34 %207 %45 = OpLoad %7 %30 %46 = OpLoad %7 %33 %208 = OpULessThanEqual %5 %45 %21 %209 = OpSelect %7 %208 %45 %21 %210 = OpULessThanEqual %5 %46 %12 %211 = OpSelect %7 %210 %46 %12 %104 = OpAccessChain %15 %34 %209 %10 %211 OpReturn OpFunctionEnd )"; ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); } } // namespace } // namespace fuzz } // namespace spvtools