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/*
* Copyright (C) 2012 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 "compiler_llvm.h"
#include "compiler.h"
#include "ir_builder.h"
#include "method_compiler.h"
#include <llvm/ADT/OwningPtr.h>
#include <llvm/Bitcode/ReaderWriter.h>
#include <llvm/DerivedTypes.h>
#include <llvm/LLVMContext.h>
#include <llvm/Module.h>
#include <llvm/Support/ToolOutputFile.h>
namespace art {
namespace compiler_llvm {
CompilerLLVM::CompilerLLVM(Compiler* compiler, InstructionSet insn_set)
: compiler_(compiler), compiler_lock_("llvm_compiler_lock"),
insn_set_(insn_set), context_(new llvm::LLVMContext()) {
// Create the module and include the runtime function declaration
module_ = new llvm::Module("art", *context_);
// Create IRBuilder
irb_.reset(new IRBuilder(*context_, *module_));
}
CompilerLLVM::~CompilerLLVM() {
}
void CompilerLLVM::MaterializeLLVMModule() {
#if !defined(NDEBUG)
// TODO: Add options to JNI_CreateJavaVM() and dex2oat, so that we don't
// have to hard-code the path.
WriteBitcodeToFile("/tmp/art_llvm_module.bc");
#endif
}
void CompilerLLVM::WriteBitcodeToFile(std::string const &filepath) {
std::string error_msg;
// Write the translated bitcode
llvm::OwningPtr<llvm::tool_output_file>
out(new llvm::tool_output_file(filepath.c_str(), error_msg,
llvm::raw_fd_ostream::F_Binary));
if (!error_msg.empty()) {
LOG(FATAL) << "Unable to open file: " << error_msg;
return;
}
llvm::WriteBitcodeToFile(module_, out->os());
out->keep();
LOG(DEBUG) << "Bitcode Written At: " << filepath;
}
CompiledMethod*
CompilerLLVM::CompileDexMethod(DexFile::CodeItem const* code_item,
uint32_t access_flags,
uint32_t method_idx,
ClassLoader const* class_loader,
DexFile const& dex_file) {
MutexLock GUARD(compiler_lock_);
ClassLinker *class_linker = Runtime::Current()->GetClassLinker();
DexCache *dex_cache = class_linker->FindDexCache(dex_file);
UniquePtr<MethodCompiler> method_compiler(
new MethodCompiler(insn_set_, compiler_, class_linker, class_loader,
&dex_file, dex_cache, code_item, method_idx,
access_flags));
return method_compiler->Compile();
}
} // namespace compiler_llvm
} // namespace art
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