| // 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 |
| %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 |
| %45 = OpUndef %9 |
| %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<FactManager>(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, SpvOpReturn, 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, SpvOpLoad, 0)) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // Bad: pointer id does not exist |
| ASSERT_FALSE(TransformationAccessChain( |
| 100, 1000, {80}, MakeInstructionDescriptor(24, SpvOpLoad, 0)) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // Bad: pointer id is not a type |
| ASSERT_FALSE(TransformationAccessChain( |
| 100, 5, {80}, MakeInstructionDescriptor(24, SpvOpLoad, 0)) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // Bad: pointer id is not a pointer |
| ASSERT_FALSE(TransformationAccessChain( |
| 100, 23, {80}, MakeInstructionDescriptor(24, SpvOpLoad, 0)) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // Bad: index id does not exist |
| ASSERT_FALSE(TransformationAccessChain( |
| 100, 43, {1000}, MakeInstructionDescriptor(24, SpvOpLoad, 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, SpvOpIAdd, 0)) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // Bad: too many indices |
| ASSERT_FALSE( |
| TransformationAccessChain(100, 43, {80, 80, 80}, |
| MakeInstructionDescriptor(24, SpvOpLoad, 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, SpvOpLoad, 0)) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // Bad: attempt to insert before variable |
| ASSERT_FALSE(TransformationAccessChain( |
| 100, 34, {}, MakeInstructionDescriptor(36, SpvOpVariable, 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, SpvOpStore, 0)) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // Bad: pointer not available |
| ASSERT_FALSE( |
| TransformationAccessChain( |
| 100, 43, {80}, MakeInstructionDescriptor(21, SpvOpAccessChain, 0)) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // Bad: instruction descriptor does not identify anything |
| ASSERT_FALSE(TransformationAccessChain( |
| 100, 43, {80}, MakeInstructionDescriptor(24, SpvOpLoad, 100)) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| #ifndef NDEBUG |
| // Bad: pointer is null |
| ASSERT_DEATH( |
| TransformationAccessChain(100, 45, {80}, |
| MakeInstructionDescriptor(24, SpvOpLoad, 0)) |
| .IsApplicable(context.get(), transformation_context), |
| "Access chains should not be created from null/undefined pointers"); |
| #endif |
| |
| #ifndef NDEBUG |
| // Bad: pointer is undef |
| ASSERT_DEATH( |
| TransformationAccessChain(100, 46, {80}, |
| MakeInstructionDescriptor(24, SpvOpLoad, 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, SpvOpLoad, 0)) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| { |
| TransformationAccessChain transformation( |
| 100, 43, {80}, MakeInstructionDescriptor(24, SpvOpLoad, 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, SpvOpReturn, 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, SpvOpStore, 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, SpvOpAccessChain, 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, SpvOpStore, 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, SpvOpFunctionCall, 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, SpvOpLoad, 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, SpvOpLoad, 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 |
| %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 |
| %45 = OpUndef %9 |
| %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<FactManager>(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, SpvOpReturn, 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<FactManager>(context.get()), validator_options); |
| { |
| TransformationAccessChain transformation( |
| 100, 11, {}, MakeInstructionDescriptor(5, SpvOpReturn, 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, SpvOpReturn, 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<FactManager>(context.get()), validator_options); |
| // Bad: no ids given for clamping |
| ASSERT_FALSE(TransformationAccessChain( |
| 100, 29, {17}, MakeInstructionDescriptor(36, SpvOpLoad, 0)) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // Bad: an id given for clamping is not fresh |
| ASSERT_FALSE(TransformationAccessChain( |
| 100, 29, {17}, MakeInstructionDescriptor(36, SpvOpLoad, 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, SpvOpLoad, 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, SpvOpLoad, 0), |
| {{100, 201}}) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| // Bad: the fresh ids given are not distinct |
| ASSERT_FALSE(TransformationAccessChain( |
| 100, 29, {17}, MakeInstructionDescriptor(36, SpvOpLoad, 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, SpvOpReturn, 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, SpvOpReturn, 0), |
| {{208, 209}, {209, 211}}) |
| .IsApplicable(context.get(), transformation_context)); |
| |
| { |
| TransformationAccessChain transformation( |
| 100, 29, {17}, MakeInstructionDescriptor(36, SpvOpLoad, 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, SpvOpLoad, 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, SpvOpLoad, 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, SpvOpLoad, 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, SpvOpReturn, 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 |
