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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_add_relaxed_decoration.h"
#include "gtest/gtest.h"
#include "source/fuzz/fuzzer_util.h"
#include "test/fuzz/fuzz_test_util.h"
namespace spvtools {
namespace fuzz {
namespace {
TEST(TransformationAddRelaxedDecorationTest, BasicScenarios) {
// This is a simple transformation and this test handles the main cases.
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 %14 "c"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%9 = OpConstant %6 4
%11 = OpConstant %6 6
%12 = OpTypeBool
%13 = OpTypePointer Function %12
%15 = OpConstantTrue %12
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%10 = OpVariable %7 Function
%14 = OpVariable %13 Function
OpStore %8 %9
OpStore %10 %11
OpStore %14 %15
OpSelectionMerge %19 None
OpBranchConditional %15 %19 %100
%100 = OpLabel
%25 = OpISub %6 %9 %11
%28 = OpLogicalNot %12 %15
OpBranch %19
%19 = OpLabel
%27 = OpISub %6 %9 %11
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(100);
// Invalid: 200 is not an id.
ASSERT_FALSE(TransformationAddRelaxedDecoration(200).IsApplicable(
context.get(), transformation_context));
// Invalid: 1 is not in a block.
ASSERT_FALSE(TransformationAddRelaxedDecoration(1).IsApplicable(
context.get(), transformation_context));
// Invalid: 27 is not in a dead block.
ASSERT_FALSE(TransformationAddRelaxedDecoration(27).IsApplicable(
context.get(), transformation_context));
// Invalid: 28 is in a dead block, but returns bool (not numeric).
ASSERT_FALSE(TransformationAddRelaxedDecoration(28).IsApplicable(
context.get(), transformation_context));
// It is valid to add RelaxedPrecision to 25 (and it's fine to
// have a duplicate).
for (uint32_t result_id : {25u, 25u}) {
TransformationAddRelaxedDecoration transformation(result_id);
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"
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
OpName %4 "main"
OpName %8 "a"
OpName %10 "b"
OpName %14 "c"
OpDecorate %25 RelaxedPrecision
OpDecorate %25 RelaxedPrecision
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%9 = OpConstant %6 4
%11 = OpConstant %6 6
%12 = OpTypeBool
%13 = OpTypePointer Function %12
%15 = OpConstantTrue %12
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%10 = OpVariable %7 Function
%14 = OpVariable %13 Function
OpStore %8 %9
OpStore %10 %11
OpStore %14 %15
OpSelectionMerge %19 None
OpBranchConditional %15 %19 %100
%100 = OpLabel
%25 = OpISub %6 %9 %11
%28 = OpLogicalNot %12 %15
OpBranch %19
%19 = OpLabel
%27 = OpISub %6 %9 %11
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
}
} // namespace
} // namespace fuzz
} // namespace spvtools
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