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// 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 "source/fuzz/transformation_composite_extract.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(TransformationCompositeExtractTest, BasicTest) {
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 "a"
OpName %10 "b"
OpName %17 "FunnyPoint"
OpMemberName %17 0 "x"
OpMemberName %17 1 "y"
OpMemberName %17 2 "z"
OpName %19 "p"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%12 = OpTypeBool
%16 = OpTypeFloat 32
%17 = OpTypeStruct %16 %16 %6
%81 = OpTypeStruct %17 %16
%18 = OpTypePointer Function %17
%20 = OpConstant %6 0
%23 = OpTypePointer Function %16
%26 = OpConstant %6 1
%30 = OpConstant %6 2
%80 = OpUndef %16
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%10 = OpVariable %7 Function
%19 = OpVariable %18 Function
%9 = OpLoad %6 %8
%11 = OpLoad %6 %10
%100 = OpCompositeConstruct %17 %80 %80 %26
%104 = OpCompositeConstruct %81 %100 %80
%13 = OpIEqual %12 %9 %11
OpSelectionMerge %15 None
OpBranchConditional %13 %14 %25
%14 = OpLabel
%21 = OpLoad %6 %8
%22 = OpConvertSToF %16 %21
%101 = OpCompositeConstruct %17 %22 %80 %30
%24 = OpAccessChain %23 %19 %20
OpStore %24 %22
OpBranch %15
%25 = OpLabel
%27 = OpLoad %6 %10
%28 = OpConvertSToF %16 %27
%102 = OpCompositeConstruct %17 %80 %28 %27
%29 = OpAccessChain %23 %19 %26
OpStore %29 %28
OpBranch %15
%15 = OpLabel
%31 = OpAccessChain %23 %19 %20
%32 = OpLoad %16 %31
%33 = OpAccessChain %23 %19 %26
%34 = OpLoad %16 %33
%103 = OpCompositeConstruct %17 %34 %32 %9
%35 = OpFAdd %16 %32 %34
%36 = OpConvertFToS %6 %35
%37 = OpAccessChain %7 %19 %30
OpStore %37 %36
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);
// Instruction does not exist.
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(36, spv::Op::OpIAdd, 0), 200, 101, {0})
.IsApplicable(context.get(), transformation_context));
// Id for composite is not a composite.
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(37, spv::Op::OpAccessChain, 0), 200, 32, {})
.IsApplicable(context.get(), transformation_context));
// Composite does not dominate instruction being inserted before.
ASSERT_FALSE(TransformationCompositeExtract(
MakeInstructionDescriptor(37, spv::Op::OpAccessChain, 0),
200, 101, {0})
.IsApplicable(context.get(), transformation_context));
// Too many indices for extraction from struct composite.
ASSERT_FALSE(TransformationCompositeExtract(
MakeInstructionDescriptor(24, spv::Op::OpAccessChain, 0),
200, 101, {0, 0})
.IsApplicable(context.get(), transformation_context));
// Too many indices for extraction from struct composite.
ASSERT_FALSE(TransformationCompositeExtract(
MakeInstructionDescriptor(13, spv::Op::OpIEqual, 0), 200,
104, {0, 0, 0})
.IsApplicable(context.get(), transformation_context));
// Out of bounds index for extraction from struct composite.
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(13, spv::Op::OpIEqual, 0), 200, 104, {0, 3})
.IsApplicable(context.get(), transformation_context));
// Result id already used.
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(35, spv::Op::OpFAdd, 0), 80, 103, {0})
.IsApplicable(context.get(), transformation_context));
TransformationCompositeExtract transformation_1(
MakeInstructionDescriptor(36, spv::Op::OpConvertFToS, 0), 201, 100, {2});
ASSERT_EQ(nullptr, context->get_def_use_mgr()->GetDef(201));
ASSERT_EQ(nullptr, context->get_instr_block(201));
uint32_t num_uses_of_100_before = context->get_def_use_mgr()->NumUses(100);
ASSERT_TRUE(
transformation_1.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation_1, context.get(),
&transformation_context);
ASSERT_EQ(spv::Op::OpCompositeExtract,
context->get_def_use_mgr()->GetDef(201)->opcode());
ASSERT_EQ(15, context->get_instr_block(201)->id());
ASSERT_EQ(num_uses_of_100_before + 1,
context->get_def_use_mgr()->NumUses(100));
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
TransformationCompositeExtract transformation_2(
MakeInstructionDescriptor(37, spv::Op::OpAccessChain, 0), 202, 104,
{0, 2});
ASSERT_TRUE(
transformation_2.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation_2, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
TransformationCompositeExtract transformation_3(
MakeInstructionDescriptor(29, spv::Op::OpAccessChain, 0), 203, 104, {0});
ASSERT_TRUE(
transformation_3.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation_3, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
TransformationCompositeExtract transformation_4(
MakeInstructionDescriptor(24, spv::Op::OpStore, 0), 204, 101, {0});
ASSERT_TRUE(
transformation_4.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation_4, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
TransformationCompositeExtract transformation_5(
MakeInstructionDescriptor(29, spv::Op::OpBranch, 0), 205, 102, {2});
ASSERT_TRUE(
transformation_5.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation_5, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
TransformationCompositeExtract transformation_6(
MakeInstructionDescriptor(37, spv::Op::OpReturn, 0), 206, 103, {1});
ASSERT_TRUE(
transformation_6.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation_6, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(201, {}), MakeDataDescriptor(100, {2})));
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(202, {}), MakeDataDescriptor(104, {0, 2})));
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(203, {}), MakeDataDescriptor(104, {0})));
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(204, {}), MakeDataDescriptor(101, {0})));
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(205, {}), MakeDataDescriptor(102, {2})));
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(206, {}), MakeDataDescriptor(103, {1})));
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 "a"
OpName %10 "b"
OpName %17 "FunnyPoint"
OpMemberName %17 0 "x"
OpMemberName %17 1 "y"
OpMemberName %17 2 "z"
OpName %19 "p"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%12 = OpTypeBool
%16 = OpTypeFloat 32
%17 = OpTypeStruct %16 %16 %6
%81 = OpTypeStruct %17 %16
%18 = OpTypePointer Function %17
%20 = OpConstant %6 0
%23 = OpTypePointer Function %16
%26 = OpConstant %6 1
%30 = OpConstant %6 2
%80 = OpUndef %16
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%10 = OpVariable %7 Function
%19 = OpVariable %18 Function
%9 = OpLoad %6 %8
%11 = OpLoad %6 %10
%100 = OpCompositeConstruct %17 %80 %80 %26
%104 = OpCompositeConstruct %81 %100 %80
%13 = OpIEqual %12 %9 %11
OpSelectionMerge %15 None
OpBranchConditional %13 %14 %25
%14 = OpLabel
%21 = OpLoad %6 %8
%22 = OpConvertSToF %16 %21
%101 = OpCompositeConstruct %17 %22 %80 %30
%24 = OpAccessChain %23 %19 %20
%204 = OpCompositeExtract %16 %101 0
OpStore %24 %22
OpBranch %15
%25 = OpLabel
%27 = OpLoad %6 %10
%28 = OpConvertSToF %16 %27
%102 = OpCompositeConstruct %17 %80 %28 %27
%203 = OpCompositeExtract %17 %104 0
%29 = OpAccessChain %23 %19 %26
OpStore %29 %28
%205 = OpCompositeExtract %6 %102 2
OpBranch %15
%15 = OpLabel
%31 = OpAccessChain %23 %19 %20
%32 = OpLoad %16 %31
%33 = OpAccessChain %23 %19 %26
%34 = OpLoad %16 %33
%103 = OpCompositeConstruct %17 %34 %32 %9
%35 = OpFAdd %16 %32 %34
%201 = OpCompositeExtract %6 %100 2
%36 = OpConvertFToS %6 %35
%202 = OpCompositeExtract %6 %104 0 2
%37 = OpAccessChain %7 %19 %30
OpStore %37 %36
%206 = OpCompositeExtract %16 %103 1
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
}
TEST(TransformationCompositeExtractTest, IllegalInsertionPoints) {
std::string shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main" %51 %27
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
OpName %4 "main"
OpName %25 "buf"
OpMemberName %25 0 "value"
OpName %27 ""
OpName %51 "color"
OpMemberDecorate %25 0 Offset 0
OpDecorate %25 Block
OpDecorate %27 DescriptorSet 0
OpDecorate %27 Binding 0
OpDecorate %51 Location 0
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeFloat 32
%7 = OpTypeVector %6 4
%10 = OpConstant %6 0.300000012
%11 = OpConstant %6 0.400000006
%12 = OpConstant %6 0.5
%13 = OpConstant %6 1
%14 = OpConstantComposite %7 %10 %11 %12 %13
%15 = OpTypeInt 32 1
%18 = OpConstant %15 0
%25 = OpTypeStruct %6
%26 = OpTypePointer Uniform %25
%27 = OpVariable %26 Uniform
%28 = OpTypePointer Uniform %6
%32 = OpTypeBool
%103 = OpConstantTrue %32
%34 = OpConstant %6 0.100000001
%48 = OpConstant %15 1
%50 = OpTypePointer Output %7
%51 = OpVariable %50 Output
%100 = OpTypePointer Function %6
%4 = OpFunction %2 None %3
%5 = OpLabel
%101 = OpVariable %100 Function
%102 = OpVariable %100 Function
OpBranch %19
%19 = OpLabel
%60 = OpPhi %7 %14 %5 %58 %20
%59 = OpPhi %15 %18 %5 %49 %20
%29 = OpAccessChain %28 %27 %18
%30 = OpLoad %6 %29
%31 = OpConvertFToS %15 %30
%33 = OpSLessThan %32 %59 %31
OpLoopMerge %21 %20 None
OpBranchConditional %33 %20 %21
%20 = OpLabel
%39 = OpCompositeExtract %6 %60 0
%40 = OpFAdd %6 %39 %34
%55 = OpCompositeInsert %7 %40 %60 0
%44 = OpCompositeExtract %6 %60 1
%45 = OpFSub %6 %44 %34
%58 = OpCompositeInsert %7 %45 %55 1
%49 = OpIAdd %15 %59 %48
OpBranch %19
%21 = OpLabel
OpStore %51 %60
OpSelectionMerge %105 None
OpBranchConditional %103 %104 %105
%104 = OpLabel
OpBranch %105
%105 = 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);
// Cannot insert before the OpVariables of a function.
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(101, spv::Op::OpVariable, 0), 200, 14, {0})
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(101, spv::Op::OpVariable, 1), 200, 14, {1})
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(102, spv::Op::OpVariable, 0), 200, 14, {1})
.IsApplicable(context.get(), transformation_context));
// OK to insert right after the OpVariables.
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(102, spv::Op::OpBranch, 1), 200, 14, {1})
.IsApplicable(context.get(), transformation_context));
// Cannot insert before the OpPhis of a block.
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(60, spv::Op::OpPhi, 0), 200, 14, {2})
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(59, spv::Op::OpPhi, 0), 200, 14, {3})
.IsApplicable(context.get(), transformation_context));
// OK to insert after the OpPhis.
ASSERT_TRUE(TransformationCompositeExtract(
MakeInstructionDescriptor(59, spv::Op::OpAccessChain, 0), 200,
14, {3})
.IsApplicable(context.get(), transformation_context));
// Cannot insert before OpLoopMerge
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(33, spv::Op::OpBranchConditional, 0), 200,
14, {3})
.IsApplicable(context.get(), transformation_context));
// Cannot insert before OpSelectionMerge
ASSERT_FALSE(
TransformationCompositeExtract(
MakeInstructionDescriptor(21, spv::Op::OpBranchConditional, 0), 200,
14, {2})
.IsApplicable(context.get(), transformation_context));
}
TEST(TransformationCompositeExtractTest, AddSynonymsForRelevantIds) {
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 "a"
OpName %10 "b"
OpName %17 "FunnyPoint"
OpMemberName %17 0 "x"
OpMemberName %17 1 "y"
OpMemberName %17 2 "z"
OpName %19 "p"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%12 = OpTypeBool
%16 = OpTypeFloat 32
%17 = OpTypeStruct %16 %16 %6
%81 = OpTypeStruct %17 %16
%18 = OpTypePointer Function %17
%20 = OpConstant %6 0
%23 = OpTypePointer Function %16
%26 = OpConstant %6 1
%30 = OpConstant %6 2
%80 = OpUndef %16
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%10 = OpVariable %7 Function
%19 = OpVariable %18 Function
%9 = OpLoad %6 %8
%11 = OpLoad %6 %10
%100 = OpCompositeConstruct %17 %80 %80 %26
%104 = OpCompositeConstruct %81 %100 %80
%13 = OpIEqual %12 %9 %11
OpSelectionMerge %15 None
OpBranchConditional %13 %14 %25
%14 = OpLabel
%21 = OpLoad %6 %8
%22 = OpConvertSToF %16 %21
%101 = OpCompositeConstruct %17 %22 %80 %30
%24 = OpAccessChain %23 %19 %20
OpStore %24 %22
OpBranch %15
%25 = OpLabel
%27 = OpLoad %6 %10
%28 = OpConvertSToF %16 %27
%102 = OpCompositeConstruct %17 %80 %28 %27
%29 = OpAccessChain %23 %19 %26
OpStore %29 %28
OpBranch %15
%15 = OpLabel
%31 = OpAccessChain %23 %19 %20
%32 = OpLoad %16 %31
%33 = OpAccessChain %23 %19 %26
%34 = OpLoad %16 %33
%103 = OpCompositeConstruct %17 %34 %32 %9
%35 = OpFAdd %16 %32 %34
%36 = OpConvertFToS %6 %35
%37 = OpAccessChain %7 %19 %30
OpStore %37 %36
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);
TransformationCompositeExtract transformation(
MakeInstructionDescriptor(36, spv::Op::OpConvertFToS, 0), 201, 100, {2});
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context);
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(201, {}), MakeDataDescriptor(100, {2})));
}
TEST(TransformationCompositeExtractTest, DontAddSynonymsForIrrelevantIds) {
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 "a"
OpName %10 "b"
OpName %17 "FunnyPoint"
OpMemberName %17 0 "x"
OpMemberName %17 1 "y"
OpMemberName %17 2 "z"
OpName %19 "p"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%12 = OpTypeBool
%16 = OpTypeFloat 32
%17 = OpTypeStruct %16 %16 %6
%81 = OpTypeStruct %17 %16
%18 = OpTypePointer Function %17
%20 = OpConstant %6 0
%23 = OpTypePointer Function %16
%26 = OpConstant %6 1
%30 = OpConstant %6 2
%80 = OpUndef %16
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%10 = OpVariable %7 Function
%19 = OpVariable %18 Function
%9 = OpLoad %6 %8
%11 = OpLoad %6 %10
%100 = OpCompositeConstruct %17 %80 %80 %26
%104 = OpCompositeConstruct %81 %100 %80
%13 = OpIEqual %12 %9 %11
OpSelectionMerge %15 None
OpBranchConditional %13 %14 %25
%14 = OpLabel
%21 = OpLoad %6 %8
%22 = OpConvertSToF %16 %21
%101 = OpCompositeConstruct %17 %22 %80 %30
%24 = OpAccessChain %23 %19 %20
OpStore %24 %22
OpBranch %15
%25 = OpLabel
%27 = OpLoad %6 %10
%28 = OpConvertSToF %16 %27
%102 = OpCompositeConstruct %17 %80 %28 %27
%29 = OpAccessChain %23 %19 %26
OpStore %29 %28
OpBranch %15
%15 = OpLabel
%31 = OpAccessChain %23 %19 %20
%32 = OpLoad %16 %31
%33 = OpAccessChain %23 %19 %26
%34 = OpLoad %16 %33
%103 = OpCompositeConstruct %17 %34 %32 %9
%35 = OpFAdd %16 %32 %34
%36 = OpConvertFToS %6 %35
%37 = OpAccessChain %7 %19 %30
OpStore %37 %36
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);
transformation_context.GetFactManager()->AddFactIdIsIrrelevant(100);
TransformationCompositeExtract transformation(
MakeInstructionDescriptor(36, spv::Op::OpConvertFToS, 0), 201, 100, {2});
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context);
ASSERT_FALSE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(201, {}), MakeDataDescriptor(100, {2})));
}
TEST(TransformationCompositeExtractTest, DontAddSynonymInDeadBlock) {
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
%7 = OpTypeVector %6 2
%8 = OpTypePointer Function %7
%10 = OpConstant %6 0
%11 = OpConstant %6 1
%12 = OpConstantComposite %7 %10 %11
%13 = OpTypeBool
%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, shader, kFuzzAssembleOption);
spvtools::ValidatorOptions validator_options;
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
transformation_context.GetFactManager()->AddFactBlockIsDead(15);
TransformationCompositeExtract transformation(
MakeInstructionDescriptor(15, spv::Op::OpBranch, 0), 100, 12, {0});
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context);
ASSERT_FALSE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(100, {}), MakeDataDescriptor(12, {0})));
}
} // namespace
} // namespace fuzz
} // namespace spvtools