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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
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
#include "backend_types.h"
#include "constants.h"
#include "dalvik_reg.h"
#include "dex_file.h"
#include "dex_instruction.h"
#include "object_utils.h"
#include <llvm/Support/IRBuilder.h>
#include <vector>
#include <stdint.h>
namespace art {
class ClassLinker;
class ClassLoader;
class CompiledMethod;
class Compiler;
class DexCache;
namespace llvm {
class AllocaInst;
class BasicBlock;
class Function;
class FunctionType;
class LLVMContext;
class Module;
class Type;
namespace art {
namespace compiler_llvm {
class CompilerLLVM;
class IRBuilder;
class MethodCompiler {
InstructionSet insn_set_;
Compiler* compiler_;
compiler_llvm::CompilerLLVM* compiler_llvm_;
ClassLinker* class_linker_;
ClassLoader const* class_loader_;
DexFile const* dex_file_;
DexCache* dex_cache_;
DexFile::CodeItem const* code_item_;
Method* method_;
MethodHelper method_helper_;
uint32_t method_idx_;
uint32_t access_flags_;
llvm::Module* module_;
llvm::LLVMContext* context_;
IRBuilder& irb_;
llvm::Function* func_;
std::vector<DalvikReg*> regs_;
UniquePtr<DalvikReg> retval_reg_;
llvm::BasicBlock* basic_block_reg_alloca_;
llvm::BasicBlock* basic_block_reg_zero_init_;
llvm::BasicBlock* basic_block_reg_arg_init_;
std::vector<llvm::BasicBlock*> basic_blocks_;
MethodCompiler(InstructionSet insn_set,
Compiler* compiler,
ClassLinker* class_linker,
ClassLoader const* class_loader,
DexFile const* dex_file,
DexCache* dex_cache,
DexFile::CodeItem const* code_item,
uint32_t method_idx,
uint32_t access_flags);
CompiledMethod* Compile();
// Code generation helper function
IRBuilder& GetIRBuilder() const {
return irb_;
// Register helper function
llvm::Value* AllocDalvikLocalVarReg(RegCategory cat, uint32_t reg_idx);
llvm::Value* AllocDalvikRetValReg(RegCategory cat);
void CreateFunction();
void EmitPrologue();
void EmitPrologueLastBranch();
void EmitPrologueAssignArgRegister();
void EmitInstructions();
void EmitInstruction(uint32_t dex_pc, Instruction const* insn);
// Code generation helper function
llvm::Value* EmitLoadMethodObjectAddr();
llvm::FunctionType* GetFunctionType(uint32_t method_idx, bool is_static);
// Basic block helper functions
llvm::BasicBlock* GetBasicBlock(uint32_t dex_pc);
llvm::BasicBlock* GetNextBasicBlock(uint32_t dex_pc);
llvm::BasicBlock* CreateBasicBlockWithDexPC(uint32_t dex_pc,
char const* postfix = NULL);
// Register helper function
llvm::Value* EmitLoadDalvikReg(uint32_t reg_idx, JType jty,
JTypeSpace space) {
return regs_[reg_idx]->GetValue(jty, space);
llvm::Value* EmitLoadDalvikReg(uint32_t reg_idx, char shorty,
JTypeSpace space) {
return EmitLoadDalvikReg(reg_idx, GetJTypeFromShorty(shorty), space);
void EmitStoreDalvikReg(uint32_t reg_idx, JType jty,
JTypeSpace space, llvm::Value* new_value) {
regs_[reg_idx]->SetValue(jty, space, new_value);
void EmitStoreDalvikReg(uint32_t reg_idx, char shorty,
JTypeSpace space, llvm::Value* new_value) {
EmitStoreDalvikReg(reg_idx, GetJTypeFromShorty(shorty), space, new_value);
llvm::Value* EmitLoadDalvikRetValReg(JType jty, JTypeSpace space) {
return retval_reg_->GetValue(jty, space);
llvm::Value* EmitLoadDalvikRetValReg(char shorty, JTypeSpace space) {
return EmitLoadDalvikRetValReg(GetJTypeFromShorty(shorty), space);
void EmitStoreDalvikRetValReg(JType jty, JTypeSpace space,
llvm::Value* new_value) {
retval_reg_->SetValue(jty, space, new_value);
void EmitStoreDalvikRetValReg(char shorty, JTypeSpace space,
llvm::Value* new_value) {
EmitStoreDalvikRetValReg(GetJTypeFromShorty(shorty), space, new_value);
} // namespace compiler_llvm
} // namespace art