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