| // 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 <algorithm> |
| #include <set> |
| #include <unordered_set> |
| |
| #include "source/fuzz/data_descriptor.h" |
| #include "source/fuzz/instruction_descriptor.h" |
| #include "source/fuzz/transformation_copy_object.h" |
| #include "test/fuzz/fuzz_test_util.h" |
| |
| namespace spvtools { |
| namespace fuzz { |
| namespace { |
| |
| TEST(TransformationCopyObjectTest, CopyBooleanConstants) { |
| 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 |
| %6 = OpTypeBool |
| %7 = OpConstantTrue %6 |
| %8 = OpConstantFalse %6 |
| %3 = OpTypeFunction %2 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| const auto env = SPV_ENV_UNIVERSAL_1_3; |
| const auto consumer = nullptr; |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); |
| ASSERT_TRUE(IsValid(env, context.get())); |
| |
| FactManager fact_manager; |
| |
| ASSERT_EQ(0, |
| fact_manager.GetIdsForWhichSynonymsAreKnown(context.get()).size()); |
| |
| { |
| TransformationCopyObject copy_true( |
| 7, MakeInstructionDescriptor(5, SpvOpReturn, 0), 100); |
| ASSERT_TRUE(copy_true.IsApplicable(context.get(), fact_manager)); |
| copy_true.Apply(context.get(), &fact_manager); |
| |
| std::vector<uint32_t> ids_for_which_synonyms_are_known = |
| fact_manager.GetIdsForWhichSynonymsAreKnown(context.get()); |
| ASSERT_EQ(2, ids_for_which_synonyms_are_known.size()); |
| ASSERT_TRUE(std::find(ids_for_which_synonyms_are_known.begin(), |
| ids_for_which_synonyms_are_known.end(), |
| 7) != ids_for_which_synonyms_are_known.end()); |
| ASSERT_EQ(2, fact_manager.GetSynonymsForId(7, context.get()).size()); |
| protobufs::DataDescriptor descriptor_100 = MakeDataDescriptor(100, {}); |
| ASSERT_TRUE(fact_manager.IsSynonymous(MakeDataDescriptor(7, {}), |
| descriptor_100, context.get())); |
| } |
| |
| { |
| TransformationCopyObject copy_false( |
| 8, MakeInstructionDescriptor(100, SpvOpReturn, 0), 101); |
| ASSERT_TRUE(copy_false.IsApplicable(context.get(), fact_manager)); |
| copy_false.Apply(context.get(), &fact_manager); |
| std::vector<uint32_t> ids_for_which_synonyms_are_known = |
| fact_manager.GetIdsForWhichSynonymsAreKnown(context.get()); |
| ASSERT_EQ(4, ids_for_which_synonyms_are_known.size()); |
| ASSERT_TRUE(std::find(ids_for_which_synonyms_are_known.begin(), |
| ids_for_which_synonyms_are_known.end(), |
| 8) != ids_for_which_synonyms_are_known.end()); |
| ASSERT_EQ(2, fact_manager.GetSynonymsForId(8, context.get()).size()); |
| protobufs::DataDescriptor descriptor_101 = MakeDataDescriptor(101, {}); |
| ASSERT_TRUE(fact_manager.IsSynonymous(MakeDataDescriptor(8, {}), |
| descriptor_101, context.get())); |
| } |
| |
| { |
| TransformationCopyObject copy_false_again( |
| 101, MakeInstructionDescriptor(5, SpvOpReturn, 0), 102); |
| ASSERT_TRUE(copy_false_again.IsApplicable(context.get(), fact_manager)); |
| copy_false_again.Apply(context.get(), &fact_manager); |
| std::vector<uint32_t> ids_for_which_synonyms_are_known = |
| fact_manager.GetIdsForWhichSynonymsAreKnown(context.get()); |
| ASSERT_EQ(5, ids_for_which_synonyms_are_known.size()); |
| ASSERT_TRUE(std::find(ids_for_which_synonyms_are_known.begin(), |
| ids_for_which_synonyms_are_known.end(), |
| 101) != ids_for_which_synonyms_are_known.end()); |
| ASSERT_EQ(3, fact_manager.GetSynonymsForId(101, context.get()).size()); |
| protobufs::DataDescriptor descriptor_102 = MakeDataDescriptor(102, {}); |
| ASSERT_TRUE(fact_manager.IsSynonymous(MakeDataDescriptor(101, {}), |
| descriptor_102, context.get())); |
| } |
| |
| { |
| TransformationCopyObject copy_true_again( |
| 7, MakeInstructionDescriptor(102, SpvOpReturn, 0), 103); |
| ASSERT_TRUE(copy_true_again.IsApplicable(context.get(), fact_manager)); |
| copy_true_again.Apply(context.get(), &fact_manager); |
| std::vector<uint32_t> ids_for_which_synonyms_are_known = |
| fact_manager.GetIdsForWhichSynonymsAreKnown(context.get()); |
| ASSERT_EQ(6, ids_for_which_synonyms_are_known.size()); |
| ASSERT_TRUE(std::find(ids_for_which_synonyms_are_known.begin(), |
| ids_for_which_synonyms_are_known.end(), |
| 7) != ids_for_which_synonyms_are_known.end()); |
| ASSERT_EQ(3, fact_manager.GetSynonymsForId(7, context.get()).size()); |
| protobufs::DataDescriptor descriptor_103 = MakeDataDescriptor(103, {}); |
| ASSERT_TRUE(fact_manager.IsSynonymous(MakeDataDescriptor(7, {}), |
| descriptor_103, context.get())); |
| } |
| |
| 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 |
| %6 = OpTypeBool |
| %7 = OpConstantTrue %6 |
| %8 = OpConstantFalse %6 |
| %3 = OpTypeFunction %2 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %100 = OpCopyObject %6 %7 |
| %101 = OpCopyObject %6 %8 |
| %102 = OpCopyObject %6 %101 |
| %103 = OpCopyObject %6 %7 |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); |
| } |
| |
| TEST(TransformationCopyObjectTest, CheckIllegalCases) { |
| // The following SPIR-V comes from this GLSL, pushed through spirv-opt |
| // and then doctored a bit. |
| // |
| // #version 310 es |
| // |
| // precision highp float; |
| // |
| // struct S { |
| // int a; |
| // float b; |
| // }; |
| // |
| // layout(set = 0, binding = 2) uniform block { |
| // S s; |
| // lowp float f; |
| // int ii; |
| // } ubuf; |
| // |
| // layout(location = 0) out vec4 color; |
| // |
| // void main() { |
| // float c = 0.0; |
| // lowp float d = 0.0; |
| // S localS = ubuf.s; |
| // for (int i = 0; i < ubuf.s.a; i++) { |
| // switch (ubuf.ii) { |
| // case 0: |
| // c += 0.1; |
| // d += 0.2; |
| // case 1: |
| // c += 0.1; |
| // if (c > d) { |
| // d += 0.2; |
| // } else { |
| // d += c; |
| // } |
| // break; |
| // default: |
| // i += 1; |
| // localS.b += d; |
| // } |
| // } |
| // color = vec4(c, d, localS.b, 1.0); |
| // } |
| |
| std::string shader = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %80 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %12 "S" |
| OpMemberName %12 0 "a" |
| OpMemberName %12 1 "b" |
| OpName %15 "S" |
| OpMemberName %15 0 "a" |
| OpMemberName %15 1 "b" |
| OpName %16 "block" |
| OpMemberName %16 0 "s" |
| OpMemberName %16 1 "f" |
| OpMemberName %16 2 "ii" |
| OpName %18 "ubuf" |
| OpName %80 "color" |
| OpMemberDecorate %12 0 RelaxedPrecision |
| OpMemberDecorate %15 0 RelaxedPrecision |
| OpMemberDecorate %15 0 Offset 0 |
| OpMemberDecorate %15 1 Offset 4 |
| OpMemberDecorate %16 0 Offset 0 |
| OpMemberDecorate %16 1 RelaxedPrecision |
| OpMemberDecorate %16 1 Offset 16 |
| OpMemberDecorate %16 2 RelaxedPrecision |
| OpMemberDecorate %16 2 Offset 20 |
| OpDecorate %16 Block |
| OpDecorate %18 DescriptorSet 0 |
| OpDecorate %18 Binding 2 |
| OpDecorate %38 RelaxedPrecision |
| OpDecorate %43 RelaxedPrecision |
| OpDecorate %53 RelaxedPrecision |
| OpDecorate %62 RelaxedPrecision |
| OpDecorate %69 RelaxedPrecision |
| OpDecorate %77 RelaxedPrecision |
| OpDecorate %80 Location 0 |
| OpDecorate %101 RelaxedPrecision |
| OpDecorate %102 RelaxedPrecision |
| OpDecorate %96 RelaxedPrecision |
| OpDecorate %108 RelaxedPrecision |
| OpDecorate %107 RelaxedPrecision |
| OpDecorate %98 RelaxedPrecision |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %9 = OpConstant %6 0 |
| %11 = OpTypeInt 32 1 |
| %12 = OpTypeStruct %11 %6 |
| %15 = OpTypeStruct %11 %6 |
| %16 = OpTypeStruct %15 %6 %11 |
| %17 = OpTypePointer Uniform %16 |
| %18 = OpVariable %17 Uniform |
| %19 = OpConstant %11 0 |
| %20 = OpTypePointer Uniform %15 |
| %27 = OpConstant %11 1 |
| %36 = OpTypePointer Uniform %11 |
| %39 = OpTypeBool |
| %41 = OpConstant %11 2 |
| %48 = OpConstant %6 0.100000001 |
| %51 = OpConstant %6 0.200000003 |
| %78 = OpTypeVector %6 4 |
| %79 = OpTypePointer Output %78 |
| %80 = OpVariable %79 Output |
| %85 = OpConstant %6 1 |
| %95 = OpUndef %12 |
| %112 = OpTypePointer Uniform %6 |
| %113 = OpTypeInt 32 0 |
| %114 = OpConstant %113 1 |
| %179 = OpTypePointer Function %39 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %180 = OpVariable %179 Function |
| %181 = OpVariable %179 Function |
| %182 = OpVariable %179 Function |
| %21 = OpAccessChain %20 %18 %19 |
| %115 = OpAccessChain %112 %21 %114 |
| %116 = OpLoad %6 %115 |
| %90 = OpCompositeInsert %12 %116 %95 1 |
| OpBranch %30 |
| %30 = OpLabel |
| %99 = OpPhi %12 %90 %5 %109 %47 |
| %98 = OpPhi %6 %9 %5 %107 %47 |
| %97 = OpPhi %6 %9 %5 %105 %47 |
| %96 = OpPhi %11 %19 %5 %77 %47 |
| %37 = OpAccessChain %36 %18 %19 %19 |
| %38 = OpLoad %11 %37 |
| %40 = OpSLessThan %39 %96 %38 |
| OpLoopMerge %32 %47 None |
| OpBranchConditional %40 %31 %32 |
| %31 = OpLabel |
| %42 = OpAccessChain %36 %18 %41 |
| %43 = OpLoad %11 %42 |
| OpSelectionMerge %45 None |
| OpSwitch %43 %46 0 %44 1 %45 |
| %46 = OpLabel |
| %69 = OpIAdd %11 %96 %27 |
| %72 = OpCompositeExtract %6 %99 1 |
| %73 = OpFAdd %6 %72 %98 |
| %93 = OpCompositeInsert %12 %73 %99 1 |
| OpBranch %47 |
| %44 = OpLabel |
| %50 = OpFAdd %6 %97 %48 |
| %53 = OpFAdd %6 %98 %51 |
| OpBranch %45 |
| %45 = OpLabel |
| %101 = OpPhi %6 %98 %31 %53 %44 |
| %100 = OpPhi %6 %97 %31 %50 %44 |
| %55 = OpFAdd %6 %100 %48 |
| %58 = OpFOrdGreaterThan %39 %55 %101 |
| OpSelectionMerge %60 None |
| OpBranchConditional %58 %59 %63 |
| %59 = OpLabel |
| %62 = OpFAdd %6 %101 %51 |
| OpBranch %60 |
| %63 = OpLabel |
| %66 = OpFAdd %6 %101 %55 |
| OpBranch %60 |
| %60 = OpLabel |
| %108 = OpPhi %6 %62 %59 %66 %63 |
| OpBranch %47 |
| %47 = OpLabel |
| %109 = OpPhi %12 %93 %46 %99 %60 |
| %107 = OpPhi %6 %98 %46 %108 %60 |
| %105 = OpPhi %6 %97 %46 %55 %60 |
| %102 = OpPhi %11 %69 %46 %96 %60 |
| %77 = OpIAdd %11 %102 %27 |
| OpBranch %30 |
| %32 = OpLabel |
| %84 = OpCompositeExtract %6 %99 1 |
| %86 = OpCompositeConstruct %78 %97 %98 %84 %85 |
| OpStore %80 %86 |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| const auto env = SPV_ENV_UNIVERSAL_1_3; |
| const auto consumer = nullptr; |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); |
| ASSERT_TRUE(IsValid(env, context.get())); |
| |
| FactManager fact_manager; |
| |
| // Inapplicable because %18 is decorated. |
| ASSERT_FALSE(TransformationCopyObject( |
| 18, MakeInstructionDescriptor(21, SpvOpAccessChain, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because %77 is decorated. |
| ASSERT_FALSE(TransformationCopyObject( |
| 77, MakeInstructionDescriptor(77, SpvOpBranch, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because %80 is decorated. |
| ASSERT_FALSE(TransformationCopyObject( |
| 80, MakeInstructionDescriptor(77, SpvOpIAdd, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because %84 is not available at the requested point |
| ASSERT_FALSE( |
| TransformationCopyObject( |
| 84, MakeInstructionDescriptor(32, SpvOpCompositeExtract, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Fine because %84 is available at the requested point |
| ASSERT_TRUE( |
| TransformationCopyObject( |
| 84, MakeInstructionDescriptor(32, SpvOpCompositeConstruct, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because id %9 is already in use |
| ASSERT_FALSE( |
| TransformationCopyObject( |
| 84, MakeInstructionDescriptor(32, SpvOpCompositeConstruct, 0), 9) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because the requested point does not exist |
| ASSERT_FALSE(TransformationCopyObject( |
| 84, MakeInstructionDescriptor(86, SpvOpReturn, 2), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because %9 is not in a function |
| ASSERT_FALSE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(9, SpvOpTypeInt, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because the insert point is right before, or inside, a chunk |
| // of OpPhis |
| ASSERT_FALSE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(30, SpvOpPhi, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| ASSERT_FALSE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(99, SpvOpPhi, 1), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // OK, because the insert point is just after a chunk of OpPhis. |
| ASSERT_TRUE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(96, SpvOpAccessChain, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because the insert point is right after an OpSelectionMerge |
| ASSERT_FALSE( |
| TransformationCopyObject( |
| 9, MakeInstructionDescriptor(58, SpvOpBranchConditional, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // OK, because the insert point is right before the OpSelectionMerge |
| ASSERT_TRUE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(58, SpvOpSelectionMerge, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because the insert point is right after an OpSelectionMerge |
| ASSERT_FALSE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(43, SpvOpSwitch, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // OK, because the insert point is right before the OpSelectionMerge |
| ASSERT_TRUE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(43, SpvOpSelectionMerge, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because the insert point is right after an OpLoopMerge |
| ASSERT_FALSE( |
| TransformationCopyObject( |
| 9, MakeInstructionDescriptor(40, SpvOpBranchConditional, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // OK, because the insert point is right before the OpLoopMerge |
| ASSERT_TRUE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(40, SpvOpLoopMerge, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because id %300 does not exist |
| ASSERT_FALSE(TransformationCopyObject( |
| 300, MakeInstructionDescriptor(40, SpvOpLoopMerge, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Inapplicable because the following instruction is OpVariable |
| ASSERT_FALSE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(180, SpvOpVariable, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| ASSERT_FALSE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(181, SpvOpVariable, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| ASSERT_FALSE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(182, SpvOpVariable, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // OK, because this is just past the group of OpVariable instructions. |
| ASSERT_TRUE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(182, SpvOpAccessChain, 0), 200) |
| .IsApplicable(context.get(), fact_manager)); |
| } |
| |
| TEST(TransformationCopyObjectTest, MiscellaneousCopies) { |
| // The following SPIR-V comes from this GLSL: |
| // |
| // #version 310 es |
| // |
| // precision highp float; |
| // |
| // float g; |
| // |
| // vec4 h; |
| // |
| // void main() { |
| // int a; |
| // int b; |
| // b = int(g); |
| // h.x = float(a); |
| // } |
| |
| 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" |
| OpName %8 "b" |
| OpName %11 "g" |
| OpName %16 "h" |
| OpName %17 "a" |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypePointer Function %6 |
| %9 = OpTypeFloat 32 |
| %10 = OpTypePointer Private %9 |
| %11 = OpVariable %10 Private |
| %14 = OpTypeVector %9 4 |
| %15 = OpTypePointer Private %14 |
| %16 = OpVariable %15 Private |
| %20 = OpTypeInt 32 0 |
| %21 = OpConstant %20 0 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %8 = OpVariable %7 Function |
| %17 = OpVariable %7 Function |
| %12 = OpLoad %9 %11 |
| %13 = OpConvertFToS %6 %12 |
| OpStore %8 %13 |
| %18 = OpLoad %6 %17 |
| %19 = OpConvertSToF %9 %18 |
| %22 = OpAccessChain %10 %16 %21 |
| OpStore %22 %19 |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| const auto env = SPV_ENV_UNIVERSAL_1_3; |
| const auto consumer = nullptr; |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); |
| ASSERT_TRUE(IsValid(env, context.get())); |
| |
| FactManager fact_manager; |
| |
| std::vector<TransformationCopyObject> transformations = { |
| TransformationCopyObject(19, MakeInstructionDescriptor(22, SpvOpStore, 0), |
| 100), |
| TransformationCopyObject( |
| 22, MakeInstructionDescriptor(22, SpvOpCopyObject, 0), 101), |
| TransformationCopyObject( |
| 12, MakeInstructionDescriptor(22, SpvOpCopyObject, 0), 102), |
| TransformationCopyObject( |
| 11, MakeInstructionDescriptor(22, SpvOpCopyObject, 0), 103), |
| TransformationCopyObject( |
| 16, MakeInstructionDescriptor(22, SpvOpCopyObject, 0), 104), |
| TransformationCopyObject( |
| 8, MakeInstructionDescriptor(22, SpvOpCopyObject, 0), 105), |
| TransformationCopyObject( |
| 17, MakeInstructionDescriptor(22, SpvOpCopyObject, 0), 106)}; |
| |
| for (auto& transformation : transformations) { |
| ASSERT_TRUE(transformation.IsApplicable(context.get(), fact_manager)); |
| transformation.Apply(context.get(), &fact_manager); |
| } |
| |
| ASSERT_TRUE(IsValid(env, context.get())); |
| |
| 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" |
| OpName %8 "b" |
| OpName %11 "g" |
| OpName %16 "h" |
| OpName %17 "a" |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypePointer Function %6 |
| %9 = OpTypeFloat 32 |
| %10 = OpTypePointer Private %9 |
| %11 = OpVariable %10 Private |
| %14 = OpTypeVector %9 4 |
| %15 = OpTypePointer Private %14 |
| %16 = OpVariable %15 Private |
| %20 = OpTypeInt 32 0 |
| %21 = OpConstant %20 0 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %8 = OpVariable %7 Function |
| %17 = OpVariable %7 Function |
| %12 = OpLoad %9 %11 |
| %13 = OpConvertFToS %6 %12 |
| OpStore %8 %13 |
| %18 = OpLoad %6 %17 |
| %19 = OpConvertSToF %9 %18 |
| %22 = OpAccessChain %10 %16 %21 |
| %106 = OpCopyObject %7 %17 |
| %105 = OpCopyObject %7 %8 |
| %104 = OpCopyObject %15 %16 |
| %103 = OpCopyObject %10 %11 |
| %102 = OpCopyObject %9 %12 |
| %101 = OpCopyObject %10 %22 |
| %100 = OpCopyObject %9 %19 |
| OpStore %22 %19 |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| ASSERT_TRUE(IsEqual(env, after_transformation, context.get())); |
| } |
| |
| TEST(TransformationCopyObjectTest, DoNotCopyNullOrUndefPointers) { |
| 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 |
| %8 = OpConstantNull %7 |
| %9 = OpUndef %7 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| const auto env = SPV_ENV_UNIVERSAL_1_3; |
| const auto consumer = nullptr; |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); |
| ASSERT_TRUE(IsValid(env, context.get())); |
| |
| FactManager fact_manager; |
| |
| // Illegal to copy null. |
| ASSERT_FALSE(TransformationCopyObject( |
| 8, MakeInstructionDescriptor(5, SpvOpReturn, 0), 100) |
| .IsApplicable(context.get(), fact_manager)); |
| |
| // Illegal to copy an OpUndef of pointer type. |
| ASSERT_FALSE(TransformationCopyObject( |
| 9, MakeInstructionDescriptor(5, SpvOpReturn, 0), 100) |
| .IsApplicable(context.get(), fact_manager)); |
| } |
| |
| TEST(TransformationCopyObjectTest, PropagateIrrelevantPointeeFact) { |
| // Checks that if a pointer is known to have an irrelevant value, the same |
| // holds after the pointer is copied. |
| |
| 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 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %8 = OpVariable %7 Function |
| %9 = OpVariable %7 Function |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| const auto env = SPV_ENV_UNIVERSAL_1_3; |
| const auto consumer = nullptr; |
| const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption); |
| ASSERT_TRUE(IsValid(env, context.get())); |
| |
| FactManager fact_manager; |
| fact_manager.AddFactValueOfPointeeIsIrrelevant(8); |
| |
| TransformationCopyObject transformation1( |
| 8, MakeInstructionDescriptor(9, SpvOpReturn, 0), 100); |
| TransformationCopyObject transformation2( |
| 9, MakeInstructionDescriptor(9, SpvOpReturn, 0), 101); |
| TransformationCopyObject transformation3( |
| 100, MakeInstructionDescriptor(9, SpvOpReturn, 0), 102); |
| |
| ASSERT_TRUE(transformation1.IsApplicable(context.get(), fact_manager)); |
| transformation1.Apply(context.get(), &fact_manager); |
| ASSERT_TRUE(transformation2.IsApplicable(context.get(), fact_manager)); |
| transformation2.Apply(context.get(), &fact_manager); |
| ASSERT_TRUE(transformation3.IsApplicable(context.get(), fact_manager)); |
| transformation3.Apply(context.get(), &fact_manager); |
| |
| ASSERT_TRUE(fact_manager.PointeeValueIsIrrelevant(8)); |
| ASSERT_TRUE(fact_manager.PointeeValueIsIrrelevant(100)); |
| ASSERT_TRUE(fact_manager.PointeeValueIsIrrelevant(102)); |
| ASSERT_FALSE(fact_manager.PointeeValueIsIrrelevant(9)); |
| ASSERT_FALSE(fact_manager.PointeeValueIsIrrelevant(101)); |
| } |
| |
| } // namespace |
| } // namespace fuzz |
| } // namespace spvtools |
