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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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 <memory>
#include <vector>
#include "arch/instruction_set.h"
#include "cfi_test.h"
#include "gtest/gtest.h"
#include "optimizing/code_generator.h"
#include "optimizing/optimizing_unit_test.h"
#include "utils/assembler.h"
#include "optimizing/optimizing_cfi_test_expected.inc"
namespace art {
// Run the tests only on host.
#ifndef __ANDROID__
class OptimizingCFITest : public CFITest {
public:
// Enable this flag to generate the expected outputs.
static constexpr bool kGenerateExpected = false;
void TestImpl(InstructionSet isa, const char* isa_str,
const std::vector<uint8_t>& expected_asm,
const std::vector<uint8_t>& expected_cfi) {
// Setup simple context.
ArenaPool pool;
ArenaAllocator allocator(&pool);
CompilerOptions opts;
std::unique_ptr<const InstructionSetFeatures> isa_features;
std::string error;
isa_features.reset(InstructionSetFeatures::FromVariant(isa, "default", &error));
HGraph* graph = CreateGraph(&allocator);
// Generate simple frame with some spills.
std::unique_ptr<CodeGenerator> code_gen(
CodeGenerator::Create(graph, isa, *isa_features.get(), opts));
const int frame_size = 64;
int core_reg = 0;
int fp_reg = 0;
for (int i = 0; i < 2; i++) { // Two registers of each kind.
for (; core_reg < 32; core_reg++) {
if (code_gen->IsCoreCalleeSaveRegister(core_reg)) {
auto location = Location::RegisterLocation(core_reg);
code_gen->AddAllocatedRegister(location);
core_reg++;
break;
}
}
for (; fp_reg < 32; fp_reg++) {
if (code_gen->IsFloatingPointCalleeSaveRegister(fp_reg)) {
auto location = Location::FpuRegisterLocation(fp_reg);
code_gen->AddAllocatedRegister(location);
fp_reg++;
break;
}
}
}
GrowableArray<HBasicBlock*> blocks(&allocator, 0);
code_gen->block_order_ = &blocks;
code_gen->ComputeSpillMask();
code_gen->SetFrameSize(frame_size);
code_gen->GenerateFrameEntry();
code_gen->GenerateFrameExit();
// Get the outputs.
InternalCodeAllocator code_allocator;
code_gen->Finalize(&code_allocator);
const std::vector<uint8_t>& actual_asm = code_allocator.GetMemory();
Assembler* opt_asm = code_gen->GetAssembler();
const std::vector<uint8_t>& actual_cfi = *(opt_asm->cfi().data());
if (kGenerateExpected) {
GenerateExpected(stdout, isa, isa_str, actual_asm, actual_cfi);
} else {
EXPECT_EQ(expected_asm, actual_asm);
EXPECT_EQ(expected_cfi, actual_cfi);
}
}
private:
class InternalCodeAllocator : public CodeAllocator {
public:
InternalCodeAllocator() {}
virtual uint8_t* Allocate(size_t size) {
memory_.resize(size);
return memory_.data();
}
const std::vector<uint8_t>& GetMemory() { return memory_; }
private:
std::vector<uint8_t> memory_;
DISALLOW_COPY_AND_ASSIGN(InternalCodeAllocator);
};
};
#define TEST_ISA(isa) \
TEST_F(OptimizingCFITest, isa) { \
std::vector<uint8_t> expected_asm(expected_asm_##isa, \
expected_asm_##isa + arraysize(expected_asm_##isa)); \
std::vector<uint8_t> expected_cfi(expected_cfi_##isa, \
expected_cfi_##isa + arraysize(expected_cfi_##isa)); \
TestImpl(isa, #isa, expected_asm, expected_cfi); \
}
TEST_ISA(kThumb2)
TEST_ISA(kArm64)
TEST_ISA(kX86)
TEST_ISA(kX86_64)
#endif // __ANDROID__
} // namespace art
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