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#ifndef ART_RUNTIME_ARCH_X86_64_QUICK_METHOD_FRAME_INFO_X86_64_H_
18#define ART_RUNTIME_ARCH_X86_64_QUICK_METHOD_FRAME_INFO_X86_64_H_
19
20#include "base/bit_utils.h"
21#include "quick/quick_method_frame_info.h"
22#include "registers_x86_64.h"
23#include "runtime.h"  // for Runtime::CalleeSaveType.
24
25namespace art {
26namespace x86_64 {
27
28static constexpr uint32_t kX86_64CalleeSaveRefSpills =
29    (1 << art::x86_64::RBX) | (1 << art::x86_64::RBP) | (1 << art::x86_64::R12) |
30    (1 << art::x86_64::R13) | (1 << art::x86_64::R14) | (1 << art::x86_64::R15);
31static constexpr uint32_t kX86_64CalleeSaveArgSpills =
32    (1 << art::x86_64::RSI) | (1 << art::x86_64::RDX) | (1 << art::x86_64::RCX) |
33    (1 << art::x86_64::R8) | (1 << art::x86_64::R9);
34static constexpr uint32_t kX86_64CalleeSaveFpArgSpills =
35    (1 << art::x86_64::XMM0) | (1 << art::x86_64::XMM1) | (1 << art::x86_64::XMM2) |
36    (1 << art::x86_64::XMM3) | (1 << art::x86_64::XMM4) | (1 << art::x86_64::XMM5) |
37    (1 << art::x86_64::XMM6) | (1 << art::x86_64::XMM7);
38static constexpr uint32_t kX86_64CalleeSaveFpSpills =
39    (1 << art::x86_64::XMM12) | (1 << art::x86_64::XMM13) |
40    (1 << art::x86_64::XMM14) | (1 << art::x86_64::XMM15);
41
42constexpr uint32_t X86_64CalleeSaveCoreSpills(Runtime::CalleeSaveType type) {
43  return kX86_64CalleeSaveRefSpills |
44      (type == Runtime::kRefsAndArgs ? kX86_64CalleeSaveArgSpills : 0) |
45      (1 << art::x86_64::kNumberOfCpuRegisters);  // fake return address callee save;
46}
47
48constexpr uint32_t X86_64CalleeSaveFpSpills(Runtime::CalleeSaveType type) {
49  return kX86_64CalleeSaveFpSpills |
50      (type == Runtime::kRefsAndArgs ? kX86_64CalleeSaveFpArgSpills : 0);
51}
52
53constexpr uint32_t X86_64CalleeSaveFrameSize(Runtime::CalleeSaveType type) {
54  return RoundUp((POPCOUNT(X86_64CalleeSaveCoreSpills(type)) /* gprs */ +
55                  POPCOUNT(X86_64CalleeSaveFpSpills(type)) /* fprs */ +
56                  1 /* Method* */) * kX86_64PointerSize, kStackAlignment);
57}
58
59constexpr QuickMethodFrameInfo X86_64CalleeSaveMethodFrameInfo(Runtime::CalleeSaveType type) {
60  return QuickMethodFrameInfo(X86_64CalleeSaveFrameSize(type),
61                              X86_64CalleeSaveCoreSpills(type),
62                              X86_64CalleeSaveFpSpills(type));
63}
64
65}  // namespace x86_64
66}  // namespace art
67
68#endif  // ART_RUNTIME_ARCH_X86_64_QUICK_METHOD_FRAME_INFO_X86_64_H_
69