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// Copyright (c) 2020 André Perez Maselco
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "source/fuzz/transformation_add_image_sample_unused_components.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(TransformationAddImageSampleUnusedComponentsTest, IsApplicable) {
std::string shader = R"(
OpCapability Shader
OpCapability LiteralSampler
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %18 "main" %17
OpExecutionMode %18 OriginUpperLeft
OpSource ESSL 310
OpName %18 "main"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%4 = OpTypeFloat 32
%5 = OpTypeVector %4 2
%6 = OpTypeVector %4 3
%7 = OpTypeVector %4 4
%8 = OpTypeImage %4 2D 0 0 0 1 Rgba32f
%9 = OpTypePointer Image %8
%10 = OpTypeSampledImage %8
%11 = OpTypeSampler
%12 = OpConstant %4 1
%13 = OpConstant %4 2
%14 = OpConstant %4 3
%15 = OpConstant %4 4
%16 = OpConstantSampler %11 None 0 Linear
%17 = OpVariable %9 Image
%18 = OpFunction %2 None %3
%19 = OpLabel
%20 = OpLoad %8 %17
%21 = OpSampledImage %10 %20 %16
%22 = OpCompositeConstruct %5 %12 %13
%23 = OpCompositeConstruct %6 %22 %14
%24 = OpCompositeConstruct %7 %23 %15
%25 = OpImageSampleImplicitLod %7 %21 %22
%26 = OpImageSampleExplicitLod %7 %21 %23 Lod %12
%27 = OpImageSampleExplicitLod %7 %21 %24 Lod %12
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_5;
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);
// Tests applicable image instruction.
auto instruction_descriptor =
MakeInstructionDescriptor(25, spv::Op::OpImageSampleImplicitLod, 0);
auto transformation =
TransformationAddImageSampleUnusedComponents(23, instruction_descriptor);
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
instruction_descriptor =
MakeInstructionDescriptor(26, spv::Op::OpImageSampleExplicitLod, 0);
transformation =
TransformationAddImageSampleUnusedComponents(24, instruction_descriptor);
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
// Tests undefined image instructions.
instruction_descriptor =
MakeInstructionDescriptor(27, spv::Op::OpImageSampleImplicitLod, 0);
transformation =
TransformationAddImageSampleUnusedComponents(23, instruction_descriptor);
ASSERT_FALSE(
transformation.IsApplicable(context.get(), transformation_context));
instruction_descriptor =
MakeInstructionDescriptor(28, spv::Op::OpImageSampleExplicitLod, 0);
transformation =
TransformationAddImageSampleUnusedComponents(23, instruction_descriptor);
ASSERT_FALSE(
transformation.IsApplicable(context.get(), transformation_context));
// Tests non-image instructions.
instruction_descriptor = MakeInstructionDescriptor(19, spv::Op::OpLabel, 0);
transformation =
TransformationAddImageSampleUnusedComponents(24, instruction_descriptor);
ASSERT_FALSE(
transformation.IsApplicable(context.get(), transformation_context));
instruction_descriptor = MakeInstructionDescriptor(20, spv::Op::OpLoad, 0);
transformation =
TransformationAddImageSampleUnusedComponents(24, instruction_descriptor);
ASSERT_FALSE(
transformation.IsApplicable(context.get(), transformation_context));
// Tests coordinate operand being a vec4.
instruction_descriptor =
MakeInstructionDescriptor(27, spv::Op::OpImageSampleExplicitLod, 0);
transformation =
TransformationAddImageSampleUnusedComponents(22, instruction_descriptor);
ASSERT_FALSE(
transformation.IsApplicable(context.get(), transformation_context));
// Tests undefined coordinate with unused operands.
instruction_descriptor =
MakeInstructionDescriptor(25, spv::Op::OpImageSampleImplicitLod, 0);
transformation =
TransformationAddImageSampleUnusedComponents(27, instruction_descriptor);
ASSERT_FALSE(
transformation.IsApplicable(context.get(), transformation_context));
// Tests coordinate with unused operands being a non-OpCompositeConstruct
// instruction.
instruction_descriptor =
MakeInstructionDescriptor(25, spv::Op::OpImageSampleImplicitLod, 0);
transformation =
TransformationAddImageSampleUnusedComponents(21, instruction_descriptor);
ASSERT_FALSE(
transformation.IsApplicable(context.get(), transformation_context));
// Tests the first OpCompositeConstruct constituent not being the original
// coordinate.
instruction_descriptor =
MakeInstructionDescriptor(25, spv::Op::OpImageSampleImplicitLod, 0);
transformation =
TransformationAddImageSampleUnusedComponents(22, instruction_descriptor);
ASSERT_FALSE(
transformation.IsApplicable(context.get(), transformation_context));
}
TEST(TransformationAddImageSampleUnusedComponentsTest, Apply) {
std::string reference_shader = R"(
OpCapability Shader
OpCapability LiteralSampler
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %18 "main" %17
OpExecutionMode %18 OriginUpperLeft
OpSource ESSL 310
OpName %18 "main"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%4 = OpTypeFloat 32
%5 = OpTypeVector %4 2
%6 = OpTypeVector %4 3
%7 = OpTypeVector %4 4
%8 = OpTypeImage %4 2D 0 0 0 1 Rgba32f
%9 = OpTypePointer Image %8
%10 = OpTypeSampledImage %8
%11 = OpTypeSampler
%12 = OpConstant %4 1
%13 = OpConstant %4 2
%14 = OpConstant %4 3
%15 = OpConstant %4 4
%16 = OpConstantSampler %11 None 0 Linear
%17 = OpVariable %9 Image
%18 = OpFunction %2 None %3
%19 = OpLabel
%20 = OpLoad %8 %17
%21 = OpSampledImage %10 %20 %16
%22 = OpCompositeConstruct %5 %12 %13
%23 = OpCompositeConstruct %6 %22 %14
%24 = OpCompositeConstruct %7 %23 %15
%25 = OpImageSampleImplicitLod %7 %21 %22
%26 = OpImageSampleExplicitLod %7 %21 %23 Lod %12
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_5;
const auto consumer = nullptr;
const auto context =
BuildModule(env, consumer, reference_shader, kFuzzAssembleOption);
spvtools::ValidatorOptions validator_options;
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
auto instruction_descriptor =
MakeInstructionDescriptor(25, spv::Op::OpImageSampleImplicitLod, 0);
auto transformation =
TransformationAddImageSampleUnusedComponents(23, instruction_descriptor);
ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context);
instruction_descriptor =
MakeInstructionDescriptor(26, spv::Op::OpImageSampleExplicitLod, 0);
transformation =
TransformationAddImageSampleUnusedComponents(24, instruction_descriptor);
ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context);
std::string variant_shader = R"(
OpCapability Shader
OpCapability LiteralSampler
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %18 "main" %17
OpExecutionMode %18 OriginUpperLeft
OpSource ESSL 310
OpName %18 "main"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%4 = OpTypeFloat 32
%5 = OpTypeVector %4 2
%6 = OpTypeVector %4 3
%7 = OpTypeVector %4 4
%8 = OpTypeImage %4 2D 0 0 0 1 Rgba32f
%9 = OpTypePointer Image %8
%10 = OpTypeSampledImage %8
%11 = OpTypeSampler
%12 = OpConstant %4 1
%13 = OpConstant %4 2
%14 = OpConstant %4 3
%15 = OpConstant %4 4
%16 = OpConstantSampler %11 None 0 Linear
%17 = OpVariable %9 Image
%18 = OpFunction %2 None %3
%19 = OpLabel
%20 = OpLoad %8 %17
%21 = OpSampledImage %10 %20 %16
%22 = OpCompositeConstruct %5 %12 %13
%23 = OpCompositeConstruct %6 %22 %14
%24 = OpCompositeConstruct %7 %23 %15
%25 = OpImageSampleImplicitLod %7 %21 %23
%26 = OpImageSampleExplicitLod %7 %21 %24 Lod %12
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, variant_shader, context.get()));
}
} // namespace
} // namespace fuzz
} // namespace spvtools