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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/fact_manager/fact_manager.h"
#include "gtest/gtest.h"
#include "source/fuzz/fuzzer_util.h"
#include "test/fuzz/fuzz_test_util.h"
namespace spvtools {
namespace fuzz {
namespace {
TEST(DeadBlockFactsTest, BlockIsDead) {
std::string shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %2 "main"
OpExecutionMode %2 OriginUpperLeft
OpSource ESSL 310
%3 = OpTypeVoid
%4 = OpTypeFunction %3
%5 = OpTypeBool
%6 = OpConstantTrue %5
%7 = OpTypeInt 32 1
%8 = OpTypePointer Function %7
%2 = OpFunction %3 None %4
%9 = OpLabel
OpSelectionMerge %10 None
OpBranchConditional %6 %11 %12
%11 = OpLabel
OpBranch %10
%12 = OpLabel
OpBranch %10
%10 = OpLabel
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));
FactManager fact_manager(context.get());
ASSERT_FALSE(fact_manager.BlockIsDead(9));
ASSERT_FALSE(fact_manager.BlockIsDead(11));
ASSERT_FALSE(fact_manager.BlockIsDead(12));
fact_manager.AddFactBlockIsDead(12);
ASSERT_FALSE(fact_manager.BlockIsDead(9));
ASSERT_FALSE(fact_manager.BlockIsDead(11));
ASSERT_TRUE(fact_manager.BlockIsDead(12));
}
} // namespace
} // namespace fuzz
} // namespace spvtools
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