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
16#ifndef ECMASCRIPT_DEOPTIMIZER_CALLEE_REG_H
17#define ECMASCRIPT_DEOPTIMIZER_CALLEE_REG_H
18
19#include <map>
20#include "ecmascript/common.h"
21#include "ecmascript/stackmap/llvm/llvm_stackmap_type.h"
22namespace panda::ecmascript::kungfu {
23#if defined(PANDA_TARGET_AMD64)
24static const int MAX_CALLEE_SAVE_REIGISTER_NUM = 32;
25enum class DwarfReg: LLVMStackMapType::DwarfRegType {
26    RBX = 3,
27    R12 = 12,
28    R13 = 13,
29    R14 = 14,
30    R15 = 15,
31};
32#elif defined(PANDA_TARGET_ARM64)
33static const int MAX_CALLEE_SAVE_REIGISTER_NUM = 32;
34enum class DwarfReg: LLVMStackMapType::DwarfRegType {
35    D8 = 72,
36    D9 = 73,
37    D10 = 74,
38    D11 = 75,
39    D12 = 76,
40    D13 = 77,
41    D14 = 78,
42    D15 = 79,
43
44    X19 = 19,
45    X20 = 20,
46    X21 = 21,
47    X22 = 22,
48    X23 = 23,
49    X24 = 24,
50    X25 = 25,
51    X26 = 26,
52    X27 = 27,
53    X28 = 28,
54};
55#else
56static const int MAX_CALLEE_SAVE_REIGISTER_NUM = 16;
57enum class DwarfReg: LLVMStackMapType::DwarfRegType {
58};
59#endif
60class CalleeReg {
61public:
62    PUBLIC_API CalleeReg();
63    virtual PUBLIC_API ~CalleeReg() = default;
64    int PUBLIC_API FindCallRegOrder(const LLVMStackMapType::DwarfRegType reg) const;
65    int PUBLIC_API FindCallRegOrder(const DwarfReg reg) const;
66    int PUBLIC_API GetCallRegNum() const;
67private:
68    std::map<DwarfReg, int> reg2Location_;
69};
70} // namespace panda::ecmascript
71#endif  // ECMASCRIPT_DEOPTIMIZER_CALLEE_REG_H
72