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/*
* Copyright (C) 2014 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 "llvm_compiler.h"
#ifdef ART_USE_PORTABLE_COMPILER
#include "compiler.h"
#include "compiler_llvm.h"
#include "dex/portable/mir_to_gbc.h"
#include "dex_file.h"
#include "elf_writer_mclinker.h"
#include "mirror/art_method-inl.h"
#endif
namespace art {
#ifdef ART_USE_PORTABLE_COMPILER
namespace llvm {
// Thread-local storage compiler worker threads
class LLVMCompilerTls : public CompilerTls {
public:
LLVMCompilerTls() : llvm_info_(nullptr) {}
~LLVMCompilerTls() {}
void* GetLLVMInfo() { return llvm_info_; }
void SetLLVMInfo(void* llvm_info) { llvm_info_ = llvm_info; }
private:
void* llvm_info_;
};
class LLVMCompiler FINAL : public Compiler {
public:
explicit LLVMCompiler(CompilerDriver* driver) : Compiler(driver, 1000) {}
CompilerTls* CreateNewCompilerTls() {
return new LLVMCompilerTls();
}
void Init() const OVERRIDE {
ArtInitCompilerContext(GetCompilerDriver());
}
void UnInit() const OVERRIDE {
ArtUnInitCompilerContext(GetCompilerDriver());
}
bool CanCompileMethod(uint32_t method_idx, const DexFile& dex_file, CompilationUnit* cu) const
OVERRIDE {
return true;
}
CompiledMethod* Compile(const DexFile::CodeItem* code_item,
uint32_t access_flags,
InvokeType invoke_type,
uint16_t class_def_idx,
uint32_t method_idx,
jobject class_loader,
const DexFile& dex_file) const OVERRIDE {
CompiledMethod* method = TryCompileWithSeaIR(code_item,
access_flags,
invoke_type,
class_def_idx,
method_idx,
class_loader,
dex_file);
if (method != nullptr) {
return method;
}
return ArtCompileMethod(GetCompilerDriver(),
code_item,
access_flags,
invoke_type,
class_def_idx,
method_idx,
class_loader,
dex_file);
}
CompiledMethod* JniCompile(uint32_t access_flags,
uint32_t method_idx,
const DexFile& dex_file) const OVERRIDE {
return ArtLLVMJniCompileMethod(GetCompilerDriver(), access_flags, method_idx, dex_file);
}
uintptr_t GetEntryPointOf(mirror::ArtMethod* method) const {
return reinterpret_cast<uintptr_t>(method->GetEntryPointFromPortableCompiledCode());
}
bool WriteElf(art::File* file,
OatWriter* oat_writer,
const std::vector<const art::DexFile*>& dex_files,
const std::string& android_root,
bool is_host, const CompilerDriver& driver) const
OVERRIDE
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return art::ElfWriterMclinker::Create(
file, oat_writer, dex_files, android_root, is_host, driver);
}
Backend* GetCodeGenerator(CompilationUnit* cu, void* compilation_unit) const {
return PortableCodeGenerator(
cu, cu->mir_graph.get(), &cu->arena,
reinterpret_cast<art::llvm::LlvmCompilationUnit*>(compilation_unit));
}
void InitCompilationUnit(CompilationUnit& cu) const {
// Fused long branches not currently useful in bitcode.
cu.disable_opt |=
(1 << kBranchFusing) |
(1 << kSuppressExceptionEdges);
}
bool IsPortable() const OVERRIDE {
return true;
}
void SetBitcodeFileName(const CompilerDriver& driver, const std::string& filename) {
typedef void (*SetBitcodeFileNameFn)(const CompilerDriver&, const std::string&);
SetBitcodeFileNameFn set_bitcode_file_name =
reinterpret_cast<SetBitcodeFileNameFn>(compilerLLVMSetBitcodeFileName);
set_bitcode_file_name(driver, filename);
}
private:
DISALLOW_COPY_AND_ASSIGN(LLVMCompiler);
};
} // namespace llvm
#endif
Compiler* CreateLLVMCompiler(CompilerDriver* driver) {
#ifdef ART_USE_PORTABLE_COMPILER
return new llvm::LLVMCompiler(driver);
#else
return nullptr;
#endif
}
} // namespace art
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