1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "standardize.h"
17 namespace maplebe {
18
DoStandardize()19 void Standardize::DoStandardize()
20 {
21 /* two address mapping first */
22 FOR_ALL_BB(bb, cgFunc) {
23 FOR_BB_INSNS(insn, bb) {
24 if (insn->IsMachineInstruction()) {
25 continue;
26 }
27 if (NeedAddressMapping(*insn)) {
28 AddressMapping(*insn);
29 }
30 }
31 }
32
33 /* standardize for each op */
34 FOR_ALL_BB(bb, cgFunc) {
35 FOR_BB_INSNS(insn, bb) {
36 if (insn->IsMachineInstruction()) {
37 continue;
38 }
39 if (insn->IsMove()) {
40 StdzMov(*insn);
41 } else if (insn->IsStore() || insn->IsLoad()) {
42 StdzStrLdr(*insn);
43 } else if (insn->IsBasicOp()) {
44 StdzBasicOp(*insn);
45 } else if (insn->IsUnaryOp()) {
46 StdzUnaryOp(*insn, *cgFunc);
47 } else if (insn->IsConversion()) {
48 StdzCvtOp(*insn, *cgFunc);
49 } else if (insn->IsShift()) {
50 StdzShiftOp(*insn, *cgFunc);
51 } else {
52 LogInfo::MapleLogger() << "Need STDZ function for " << insn->GetDesc()->GetName() << "\n";
53 CHECK_FATAL(false, "NIY");
54 }
55 }
56 }
57 }
58
AddressMapping(Insn & insn)59 void Standardize::AddressMapping(Insn &insn)
60 {
61 Operand &dest = insn.GetOperand(kInsnFirstOpnd);
62 Operand &src1 = insn.GetOperand(kInsnSecondOpnd);
63 uint32 destSize = dest.GetSize();
64 bool isInt = (static_cast<RegOperand&>(dest).GetRegisterType() == kRegTyInt);
65 MOperator mOp = abstract::MOP_undef;
66 switch (destSize) {
67 case k8BitSize:
68 mOp = isInt ? abstract::MOP_copy_rr_8 : abstract::MOP_undef;
69 break;
70 case k16BitSize:
71 mOp = isInt ? abstract::MOP_copy_rr_16 : abstract::MOP_undef;
72 break;
73 case k32BitSize:
74 mOp = isInt ? abstract::MOP_copy_rr_32 : abstract::MOP_copy_ff_32;
75 break;
76 case k64BitSize:
77 mOp = isInt ? abstract::MOP_copy_rr_64 : abstract::MOP_copy_ff_64;
78 break;
79 default:
80 break;
81 }
82 CHECK_FATAL(mOp != abstract::MOP_undef, "do two address mapping failed");
83 Insn &newInsn = cgFunc->GetInsnBuilder()->BuildInsn(mOp, InsnDesc::GetAbstractId(mOp));
84 (void)newInsn.AddOpndChain(dest).AddOpndChain(src1);
85 (void)insn.GetBB()->InsertInsnBefore(insn, newInsn);
86 }
87 } // namespace maplebe
88