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// 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_replace_copy_object_with_store_load.h"
#include "gtest/gtest.h"
#include "source/fuzz/fuzzer_util.h"
#include "test/fuzz/fuzz_test_util.h"
namespace spvtools {
namespace fuzz {
namespace {
TEST(TransformationReplaceCopyObjectWithStoreLoad, BasicScenarios) {
std::string reference_shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main" %23
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
OpName %4 "main"
OpName %8 "a"
OpName %10 "b"
OpName %14 "c"
OpName %16 "d"
OpName %18 "e"
OpName %23 "f"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%9 = OpConstant %6 2
%11 = OpConstant %6 3
%12 = OpTypeFloat 32
%13 = OpTypePointer Function %12
%15 = OpConstant %12 2
%17 = OpConstant %12 3
%22 = OpTypePointer Private %12
%23 = OpVariable %22 Private
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%10 = OpVariable %7 Function
%14 = OpVariable %13 Function
%16 = OpVariable %13 Function
%18 = OpVariable %7 Function
OpStore %8 %9
OpStore %10 %11
OpStore %14 %15
OpStore %16 %17
%19 = OpLoad %6 %8
%20 = OpLoad %6 %10
%21 = OpIAdd %6 %19 %20
OpStore %18 %21
%24 = OpLoad %12 %14
%25 = OpLoad %12 %16
%26 = OpFMul %12 %24 %25
OpStore %23 %26
%27 = OpCopyObject %6 %21
%28 = OpCopyObject %12 %26
%40 = OpCopyObject %13 %14
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_4;
const auto consumer = nullptr;
const auto context =
BuildModule(env, consumer, reference_shader, kFuzzAssembleOption);
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
// Invalid: fresh_variable_id=10 is not fresh.
auto transformation_invalid_1 = TransformationReplaceCopyObjectWithStoreLoad(
27, 10, (uint32_t)spv::StorageClass::Function, 9);
ASSERT_FALSE(transformation_invalid_1.IsApplicable(context.get(),
transformation_context));
// Invalid: copy_object_result_id=26 is not a CopyObject instruction.
auto transformation_invalid_2 = TransformationReplaceCopyObjectWithStoreLoad(
26, 30, (uint32_t)spv::StorageClass::Function, 9);
ASSERT_FALSE(transformation_invalid_2.IsApplicable(context.get(),
transformation_context));
// Invalid: copy_object_result_id=40 is of type pointer.
auto transformation_invalid_3 = TransformationReplaceCopyObjectWithStoreLoad(
40, 30, (uint32_t)spv::StorageClass::Function, 9);
ASSERT_FALSE(transformation_invalid_3.IsApplicable(context.get(),
transformation_context));
// Invalid: Pointer type instruction in this storage class pointing to the
// value type is not defined.
auto transformation_invalid_4 = TransformationReplaceCopyObjectWithStoreLoad(
40, 30, (uint32_t)spv::StorageClass::Private, 9);
ASSERT_FALSE(transformation_invalid_4.IsApplicable(context.get(),
transformation_context));
// Invalid: initializer_id=15 has the wrong type relative to the OpCopyObject
// instruction.
auto transformation_invalid_5 = TransformationReplaceCopyObjectWithStoreLoad(
27, 30, (uint32_t)spv::StorageClass::Function, 15);
ASSERT_FALSE(transformation_invalid_5.IsApplicable(context.get(),
transformation_context));
// Invalid: spv::StorageClass::Uniform is not applicable to the
// transformation.
auto transformation_invalid_6 = TransformationReplaceCopyObjectWithStoreLoad(
27, 30, (uint32_t)spv::StorageClass::Uniform, 9);
ASSERT_FALSE(transformation_invalid_6.IsApplicable(context.get(),
transformation_context));
auto transformation_valid_1 = TransformationReplaceCopyObjectWithStoreLoad(
27, 30, (uint32_t)spv::StorageClass::Function, 9);
ASSERT_TRUE(transformation_valid_1.IsApplicable(context.get(),
transformation_context));
ApplyAndCheckFreshIds(transformation_valid_1, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
auto transformation_valid_2 = TransformationReplaceCopyObjectWithStoreLoad(
28, 32, (uint32_t)spv::StorageClass::Private, 15);
ASSERT_TRUE(transformation_valid_2.IsApplicable(context.get(),
transformation_context));
ApplyAndCheckFreshIds(transformation_valid_2, 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" %23 %32
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
OpName %4 "main"
OpName %8 "a"
OpName %10 "b"
OpName %14 "c"
OpName %16 "d"
OpName %18 "e"
OpName %23 "f"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%9 = OpConstant %6 2
%11 = OpConstant %6 3
%12 = OpTypeFloat 32
%13 = OpTypePointer Function %12
%15 = OpConstant %12 2
%17 = OpConstant %12 3
%22 = OpTypePointer Private %12
%23 = OpVariable %22 Private
%32 = OpVariable %22 Private %15
%4 = OpFunction %2 None %3
%5 = OpLabel
%30 = OpVariable %7 Function %9
%8 = OpVariable %7 Function
%10 = OpVariable %7 Function
%14 = OpVariable %13 Function
%16 = OpVariable %13 Function
%18 = OpVariable %7 Function
OpStore %8 %9
OpStore %10 %11
OpStore %14 %15
OpStore %16 %17
%19 = OpLoad %6 %8
%20 = OpLoad %6 %10
%21 = OpIAdd %6 %19 %20
OpStore %18 %21
%24 = OpLoad %12 %14
%25 = OpLoad %12 %16
%26 = OpFMul %12 %24 %25
OpStore %23 %26
OpStore %30 %21
%27 = OpLoad %6 %30
OpStore %32 %26
%28 = OpLoad %12 %32
%40 = OpCopyObject %13 %14
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
}
TEST(TransformationReplaceCopyObjectWithStoreLoad, IrrelevantIdsAndDeadBlocks) {
std::string reference_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
%30 = OpTypePointer Function %6
%10 = OpConstant %6 0
%11 = OpConstant %6 1
%13 = OpTypeBool
%14 = OpConstantFalse %13
%4 = OpFunction %2 None %3
%5 = OpLabel
OpSelectionMerge %16 None
OpBranchConditional %14 %15 %16
%15 = OpLabel
%50 = OpCopyObject %6 %10
OpBranch %16
%16 = OpLabel
%51 = OpCopyObject %6 %11
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_4;
const auto consumer = nullptr;
const auto context =
BuildModule(env, consumer, reference_shader, kFuzzAssembleOption);
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
transformation_context.GetFactManager()->AddFactBlockIsDead(15);
transformation_context.GetFactManager()->AddFactIdIsIrrelevant(11);
auto transformation_1 = TransformationReplaceCopyObjectWithStoreLoad(
50, 100, (uint32_t)spv::StorageClass::Function, 10);
ASSERT_TRUE(
transformation_1.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation_1, context.get(),
&transformation_context);
ASSERT_FALSE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(100, {}), MakeDataDescriptor(50, {})));
auto transformation_2 = TransformationReplaceCopyObjectWithStoreLoad(
51, 101, (uint32_t)spv::StorageClass::Function, 10);
ASSERT_TRUE(
transformation_2.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation_2, context.get(),
&transformation_context);
ASSERT_FALSE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(101, {}), MakeDataDescriptor(51, {})));
}
} // namespace
} // namespace fuzz
} // namespace spvtools