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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 <vector>
#include <memory>
#include "arch/instruction_set.h"
#include "arch/instruction_set_features.h"
#include "cfi_test.h"
#include "dex/compiler_ir.h"
#include "dex/mir_graph.h"
#include "dex/pass_manager.h"
#include "dex/quick/dex_file_to_method_inliner_map.h"
#include "dex/quick/quick_compiler.h"
#include "dex/quick/mir_to_lir.h"
#include "dex/verification_results.h"
#include "driver/compiler_driver.h"
#include "driver/compiler_options.h"
#include "gtest/gtest.h"
#include "dex/quick/quick_cfi_test_expected.inc"
namespace art {
// Run the tests only on host.
#ifndef HAVE_ANDROID_OS
class QuickCFITest : 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 compiler context.
ArenaPool pool;
ArenaAllocator arena(&pool);
CompilerOptions compiler_options(
CompilerOptions::kDefaultCompilerFilter,
CompilerOptions::kDefaultHugeMethodThreshold,
CompilerOptions::kDefaultLargeMethodThreshold,
CompilerOptions::kDefaultSmallMethodThreshold,
CompilerOptions::kDefaultTinyMethodThreshold,
CompilerOptions::kDefaultNumDexMethodsThreshold,
false,
CompilerOptions::kDefaultTopKProfileThreshold,
false,
true, // generate_debug_info.
false,
false,
false,
false,
nullptr,
new PassManagerOptions(),
nullptr,
false);
VerificationResults verification_results(&compiler_options);
DexFileToMethodInlinerMap method_inliner_map;
std::unique_ptr<const InstructionSetFeatures> isa_features;
std::string error;
isa_features.reset(InstructionSetFeatures::FromVariant(isa, "default", &error));
CompilerDriver driver(&compiler_options, &verification_results, &method_inliner_map,
Compiler::kQuick, isa, isa_features.get(),
false, nullptr, nullptr, nullptr, 0, false, false, "", 0, -1, "");
ClassLinker* linker = nullptr;
CompilationUnit cu(&pool, isa, &driver, linker);
DexFile::CodeItem code_item { 0, 0, 0, 0, 0, 0, { 0 } }; // NOLINT
cu.mir_graph.reset(new MIRGraph(&cu, &arena));
cu.mir_graph->current_code_item_ = &code_item;
// Generate empty method with some spills.
std::unique_ptr<Mir2Lir> m2l(QuickCompiler::GetCodeGenerator(&cu, nullptr));
m2l->frame_size_ = 64u;
m2l->CompilerInitializeRegAlloc();
for (const auto& info : m2l->reg_pool_->core_regs_) {
if (m2l->num_core_spills_ < 2 && !info->IsTemp() && !info->InUse()) {
m2l->core_spill_mask_ |= 1 << info->GetReg().GetRegNum();
m2l->num_core_spills_++;
}
}
for (const auto& info : m2l->reg_pool_->sp_regs_) {
if (m2l->num_fp_spills_ < 2 && !info->IsTemp() && !info->InUse()) {
m2l->fp_spill_mask_ |= 1 << info->GetReg().GetRegNum();
m2l->num_fp_spills_++;
}
}
m2l->AdjustSpillMask();
m2l->GenEntrySequence(nullptr, m2l->GetCompilationUnit()->target64 ?
m2l->LocCReturnWide() : m2l->LocCReturnRef());
m2l->GenExitSequence();
m2l->HandleSlowPaths();
m2l->AssembleLIR();
std::vector<uint8_t> actual_asm(m2l->code_buffer_.begin(), m2l->code_buffer_.end());
auto const& cfi_data = m2l->cfi().Patch(actual_asm.size());
std::vector<uint8_t> actual_cfi(cfi_data->begin(), cfi_data->end());
EXPECT_EQ(m2l->cfi().GetCurrentPC(), static_cast<int>(actual_asm.size()));
if (kGenerateExpected) {
GenerateExpected(stdout, isa, isa_str, actual_asm, actual_cfi);
} else {
EXPECT_EQ(expected_asm, actual_asm);
EXPECT_EQ(expected_cfi, actual_cfi);
}
}
};
#define TEST_ISA(isa) \
TEST_F(QuickCFITest, 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)
TEST_ISA(kMips)
TEST_ISA(kMips64)
#endif // HAVE_ANDROID_OS
} // namespace art
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