1 /*
2 * Copyright (c) 2022 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 #include "ecmascript/deoptimizer/calleeReg.h"
16 #include <iostream>
17
18 namespace panda::ecmascript::kungfu {
CalleeReg()19 CalleeReg::CalleeReg()
20 {
21 #if defined(PANDA_TARGET_AMD64)
22 reg2Location_ = {
23 {DwarfReg::RBX, 0},
24 {DwarfReg::R15, 1},
25 {DwarfReg::R14, 2},
26 {DwarfReg::R13, 3},
27 {DwarfReg::R12, 4},
28 };
29 #elif defined(PANDA_TARGET_ARM64)
30 reg2Location_ = {
31 {DwarfReg::D8, 0},
32 {DwarfReg::D9, 1},
33 {DwarfReg::D10, 2},
34 {DwarfReg::D11, 3},
35 {DwarfReg::D12, 4},
36 {DwarfReg::D13, 5},
37 {DwarfReg::D14, 6},
38 {DwarfReg::D15, 7},
39
40 {DwarfReg::X19, 8},
41 {DwarfReg::X20, 9},
42 {DwarfReg::X21, 10},
43 {DwarfReg::X22, 11},
44 {DwarfReg::X23, 12},
45 {DwarfReg::X24, 13},
46 {DwarfReg::X25, 14},
47 {DwarfReg::X26, 15},
48 {DwarfReg::X27, 16},
49 {DwarfReg::X28, 17},
50 };
51 #endif
52 }
53
FindCallRegOrder(const LLVMStackMapType::DwarfRegType reg) const54 int CalleeReg::FindCallRegOrder(const LLVMStackMapType::DwarfRegType reg) const
55 {
56 auto it = reg2Location_.find(static_cast<DwarfReg>(reg));
57 if (it != reg2Location_.end()) {
58 return it->second;
59 } else {
60 LOG_FULL(FATAL) << "reg:" << std::dec << reg;
61 UNREACHABLE();
62 }
63 }
64
FindCallRegOrder(const DwarfReg reg) const65 int CalleeReg::FindCallRegOrder(const DwarfReg reg) const
66 {
67 auto order = FindCallRegOrder(static_cast<LLVMStackMapType::DwarfRegType>(reg));
68 return order;
69 }
70
GetCallRegNum() const71 int CalleeReg::GetCallRegNum() const
72 {
73 return reg2Location_.size();
74 }
75 } // namespace panda::ecmascript::kungfu
76