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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.
*/
#ifndef ART_SRC_COMPILER_LLVM_COMPILATION_UNIT_H_
#define ART_SRC_COMPILER_LLVM_COMPILATION_UNIT_H_
#include "../mutex.h"
#include "elf_image.h"
#include "globals.h"
#include "instruction_set.h"
#include "logging.h"
#include "runtime_support_builder.h"
#include "runtime_support_func.h"
#include "safe_map.h"
#include <UniquePtr.h>
#include <string>
#include <vector>
namespace art {
class CompiledMethod;
}
namespace llvm {
class Function;
class LLVMContext;
class Module;
class raw_ostream;
}
namespace art {
namespace compiler_llvm {
class IRBuilder;
class CompilationUnit {
public:
CompilationUnit(InstructionSet insn_set, size_t elf_idx);
~CompilationUnit();
size_t GetElfIndex() const {
return elf_idx_;
}
InstructionSet GetInstructionSet() const {
cunit_lock_.AssertHeld();
return insn_set_;
}
llvm::LLVMContext* GetLLVMContext() const {
cunit_lock_.AssertHeld();
return context_.get();
}
llvm::Module* GetModule() const {
cunit_lock_.AssertHeld();
return module_;
}
IRBuilder* GetIRBuilder() const {
cunit_lock_.AssertHeld();
return irb_.get();
}
ElfImage GetElfImage() const {
MutexLock GUARD(cunit_lock_);
CHECK_GT(elf_image_.size(), 0u);
return ElfImage(elf_image_);
}
uint16_t AcquireUniqueElfFuncIndex() {
cunit_lock_.AssertHeld();
CHECK(num_elf_funcs_ < UINT16_MAX);
return num_elf_funcs_++;
}
void SetBitcodeFileName(const std::string& bitcode_filename) {
MutexLock GUARD(cunit_lock_);
bitcode_filename_ = bitcode_filename;
}
bool Materialize(size_t thread_count);
bool IsMaterialized() const {
MutexLock GUARD(cunit_lock_);
return (context_.get() == NULL);
}
bool IsMaterializeThresholdReached() const {
MutexLock GUARD(cunit_lock_);
return (mem_usage_ > 1000000u); // (threshold: 1 MB)
}
void AddMemUsageApproximation(size_t usage) {
MutexLock GUARD(cunit_lock_);
mem_usage_ += usage;
}
void RegisterCompiledMethod(const llvm::Function* func, CompiledMethod* cm);
void UpdateFrameSizeInBytes(const llvm::Function* func, size_t frame_size_in_bytes);
mutable Mutex cunit_lock_;
private:
InstructionSet insn_set_;
const size_t elf_idx_;
UniquePtr<llvm::LLVMContext> context_;
UniquePtr<IRBuilder> irb_;
UniquePtr<RuntimeSupportBuilder> runtime_support_;
llvm::Module* module_;
std::string bitcode_filename_;
std::string elf_image_;
typedef SafeMap<const llvm::Function*, CompiledMethod*> CompiledMethodMap;
UniquePtr<CompiledMethodMap> compiled_methods_map_;
size_t mem_usage_;
uint16_t num_elf_funcs_;
bool MaterializeToFile(llvm::raw_ostream& out_stream);
};
} // namespace compiler_llvm
} // namespace art
#endif // ART_SRC_COMPILER_LLVM_COMPILATION_UNIT_H_
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