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_QUICK_METHOD_FRAME_INFO_X86_H_
18 #define ART_RUNTIME_ARCH_X86_QUICK_METHOD_FRAME_INFO_X86_H_
19
20 #include "arch/instruction_set.h"
21 #include "base/bit_utils.h"
22 #include "base/callee_save_type.h"
23 #include "base/enums.h"
24 #include "quick/quick_method_frame_info.h"
25 #include "registers_x86.h"
26
27 namespace art {
28 namespace x86 {
29
30 enum XMM {
31 XMM0 = 0,
32 XMM1 = 1,
33 XMM2 = 2,
34 XMM3 = 3,
35 XMM4 = 4,
36 XMM5 = 5,
37 XMM6 = 6,
38 XMM7 = 7,
39 };
40
41 static constexpr uint32_t kX86CalleeSaveAlwaysSpills =
42 (1 << art::x86::kNumberOfCpuRegisters); // Fake return address callee save.
43 static constexpr uint32_t kX86CalleeSaveRefSpills =
44 (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
45 static constexpr uint32_t kX86CalleeSaveArgSpills =
46 (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
47 static constexpr uint32_t kX86CalleeSaveEverythingSpills =
48 (1 << art::x86::EAX) | (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
49
50 static constexpr uint32_t kX86CalleeSaveFpArgSpills =
51 (1 << art::x86::XMM0) | (1 << art::x86::XMM1) |
52 (1 << art::x86::XMM2) | (1 << art::x86::XMM3);
53 static constexpr uint32_t kX86CalleeSaveFpEverythingSpills =
54 (1 << art::x86::XMM0) | (1 << art::x86::XMM1) |
55 (1 << art::x86::XMM2) | (1 << art::x86::XMM3) |
56 (1 << art::x86::XMM4) | (1 << art::x86::XMM5) |
57 (1 << art::x86::XMM6) | (1 << art::x86::XMM7);
58
X86CalleeSaveCoreSpills(CalleeSaveType type)59 constexpr uint32_t X86CalleeSaveCoreSpills(CalleeSaveType type) {
60 return kX86CalleeSaveAlwaysSpills | kX86CalleeSaveRefSpills |
61 (type == CalleeSaveType::kSaveRefsAndArgs ? kX86CalleeSaveArgSpills : 0) |
62 (type == CalleeSaveType::kSaveEverything ? kX86CalleeSaveEverythingSpills : 0);
63 }
64
X86CalleeSaveFpSpills(CalleeSaveType type)65 constexpr uint32_t X86CalleeSaveFpSpills(CalleeSaveType type) {
66 return (type == CalleeSaveType::kSaveRefsAndArgs ? kX86CalleeSaveFpArgSpills : 0) |
67 (type == CalleeSaveType::kSaveEverything ? kX86CalleeSaveFpEverythingSpills : 0);
68 }
69
X86CalleeSaveFrameSize(CalleeSaveType type)70 constexpr uint32_t X86CalleeSaveFrameSize(CalleeSaveType type) {
71 return RoundUp((POPCOUNT(X86CalleeSaveCoreSpills(type)) /* gprs */ +
72 2 * POPCOUNT(X86CalleeSaveFpSpills(type)) /* fprs */ +
73 1 /* Method* */) * static_cast<size_t>(kX86PointerSize), kStackAlignment);
74 }
75
X86CalleeSaveMethodFrameInfo(CalleeSaveType type)76 constexpr QuickMethodFrameInfo X86CalleeSaveMethodFrameInfo(CalleeSaveType type) {
77 return QuickMethodFrameInfo(X86CalleeSaveFrameSize(type),
78 X86CalleeSaveCoreSpills(type),
79 X86CalleeSaveFpSpills(type));
80 }
81
82 } // namespace x86
83 } // namespace art
84
85 #endif // ART_RUNTIME_ARCH_X86_QUICK_METHOD_FRAME_INFO_X86_H_
86