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103 lines
3.7 KiB
103 lines
3.7 KiB
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "select_generator.h"
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#include "base/arena_allocator.h"
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#include "builder.h"
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#include "nodes.h"
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#include "optimizing_unit_test.h"
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#include "side_effects_analysis.h"
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namespace art {
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class SelectGeneratorTest : public OptimizingUnitTest {
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protected:
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void InitGraphAndParameters() {
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InitGraph();
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AddParameter(new (GetAllocator()) HParameterValue(graph_->GetDexFile(),
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dex::TypeIndex(0),
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0,
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DataType::Type::kInt32));
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}
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void ConstructBasicGraphForSelect(HInstruction* instr) {
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HBasicBlock* if_block = AddNewBlock();
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HBasicBlock* then_block = AddNewBlock();
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HBasicBlock* else_block = AddNewBlock();
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entry_block_->ReplaceSuccessor(return_block_, if_block);
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if_block->AddSuccessor(then_block);
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if_block->AddSuccessor(else_block);
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then_block->AddSuccessor(return_block_);
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else_block->AddSuccessor(return_block_);
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HParameterValue* bool_param = new (GetAllocator()) HParameterValue(graph_->GetDexFile(),
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dex::TypeIndex(0),
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1,
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DataType::Type::kBool);
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entry_block_->AddInstruction(bool_param);
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HIntConstant* const1 = graph_->GetIntConstant(1);
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if_block->AddInstruction(new (GetAllocator()) HIf(bool_param));
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then_block->AddInstruction(instr);
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then_block->AddInstruction(new (GetAllocator()) HGoto());
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else_block->AddInstruction(new (GetAllocator()) HGoto());
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HPhi* phi = new (GetAllocator()) HPhi(GetAllocator(), 0, 0, DataType::Type::kInt32);
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return_block_->AddPhi(phi);
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phi->AddInput(instr);
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phi->AddInput(const1);
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}
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bool CheckGraphAndTrySelectGenerator() {
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graph_->BuildDominatorTree();
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EXPECT_TRUE(CheckGraph());
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SideEffectsAnalysis side_effects(graph_);
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side_effects.Run();
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return HSelectGenerator(graph_, /*handles*/ nullptr, /*stats*/ nullptr).Run();
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}
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};
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// HDivZeroCheck might throw and should not be hoisted from the conditional to an unconditional.
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TEST_F(SelectGeneratorTest, testZeroCheck) {
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InitGraphAndParameters();
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HDivZeroCheck* instr = new (GetAllocator()) HDivZeroCheck(parameters_[0], 0);
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ConstructBasicGraphForSelect(instr);
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ArenaVector<HInstruction*> current_locals({parameters_[0], graph_->GetIntConstant(1)},
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GetAllocator()->Adapter(kArenaAllocInstruction));
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ManuallyBuildEnvFor(instr, ¤t_locals);
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EXPECT_FALSE(CheckGraphAndTrySelectGenerator());
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}
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// Test that SelectGenerator succeeds with HAdd.
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TEST_F(SelectGeneratorTest, testAdd) {
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InitGraphAndParameters();
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HAdd* instr = new (GetAllocator()) HAdd(DataType::Type::kInt32,
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parameters_[0],
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parameters_[0], 0);
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ConstructBasicGraphForSelect(instr);
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EXPECT_TRUE(CheckGraphAndTrySelectGenerator());
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}
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} // namespace art
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