code_generator_arm.cc revision d4dd255db1d110ceb5551f6d95ff31fb57420994 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "code_generator_arm.h"
18#include "utils/assembler.h"
19#include "utils/arm/assembler_arm.h"
20
21#define __ reinterpret_cast<ArmAssembler*>(assembler())->
22
23namespace art {
24namespace arm {
25
26void CodeGeneratorARM::GenerateFrameEntry() {
27  RegList registers = (1 << LR) | (1 << FP);
28  __ PushList(registers);
29}
30
31void CodeGeneratorARM::GenerateFrameExit() {
32  RegList registers = (1 << PC) | (1 << FP);
33  __ PopList(registers);
34}
35
36void CodeGeneratorARM::Bind(Label* label) {
37  __ Bind(label);
38}
39
40void CodeGeneratorARM::VisitGoto(HGoto* got) {
41  HBasicBlock* successor = got->GetSuccessor();
42  if (graph()->exit_block() == successor) {
43    GenerateFrameExit();
44  } else if (!GoesToNextBlock(got)) {
45    __ b(GetLabelOf(successor));
46  }
47}
48
49void CodeGeneratorARM::VisitExit(HExit* exit) {
50  if (kIsDebugBuild) {
51    __ Comment("Unreachable");
52    __ bkpt(0);
53  }
54}
55
56void CodeGeneratorARM::VisitIf(HIf* if_instr) {
57  LOG(FATAL) << "UNIMPLEMENTED";
58}
59
60void CodeGeneratorARM::VisitReturnVoid(HReturnVoid* ret) {
61  GenerateFrameExit();
62}
63
64}  // namespace arm
65}  // namespace art
66