112 lines
5.0 KiB
C++
112 lines
5.0 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_ARCH_ARM_CALLEE_SAVE_FRAME_ARM_H_
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#define ART_RUNTIME_ARCH_ARM_CALLEE_SAVE_FRAME_ARM_H_
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#include "arch/instruction_set.h"
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#include "base/bit_utils.h"
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#include "base/callee_save_type.h"
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#include "base/enums.h"
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#include "quick/quick_method_frame_info.h"
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#include "registers_arm.h"
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#include "runtime_globals.h"
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namespace art {
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namespace arm {
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static constexpr uint32_t kArmCalleeSaveAlwaysSpills =
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(1 << art::arm::LR);
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static constexpr uint32_t kArmCalleeSaveRefSpills =
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(1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) | (1 << art::arm::R8) |
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(1 << art::arm::R10) | (1 << art::arm::R11);
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static constexpr uint32_t kArmCalleeSaveArgSpills =
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(1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3);
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static constexpr uint32_t kArmCalleeSaveAllSpills =
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(1 << art::arm::R4) | (1 << art::arm::R9);
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static constexpr uint32_t kArmCalleeSaveEverythingSpills =
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(1 << art::arm::R0) | (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3) |
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(1 << art::arm::R4) | (1 << art::arm::R9) | (1 << art::arm::R12);
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static constexpr uint32_t kArmCalleeSaveFpAlwaysSpills = 0;
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static constexpr uint32_t kArmCalleeSaveFpRefSpills = 0;
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static constexpr uint32_t kArmCalleeSaveFpArgSpills =
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(1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) | (1 << art::arm::S3) |
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(1 << art::arm::S4) | (1 << art::arm::S5) | (1 << art::arm::S6) | (1 << art::arm::S7) |
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(1 << art::arm::S8) | (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) |
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(1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) | (1 << art::arm::S15);
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static constexpr uint32_t kArmCalleeSaveFpAllSpills =
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(1 << art::arm::S16) | (1 << art::arm::S17) | (1 << art::arm::S18) | (1 << art::arm::S19) |
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(1 << art::arm::S20) | (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) |
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(1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) | (1 << art::arm::S27) |
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(1 << art::arm::S28) | (1 << art::arm::S29) | (1 << art::arm::S30) | (1 << art::arm::S31);
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static constexpr uint32_t kArmCalleeSaveFpEverythingSpills =
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kArmCalleeSaveFpArgSpills | kArmCalleeSaveFpAllSpills;
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class ArmCalleeSaveFrame {
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public:
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static constexpr uint32_t GetCoreSpills(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return kArmCalleeSaveAlwaysSpills | kArmCalleeSaveRefSpills |
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(type == CalleeSaveType::kSaveRefsAndArgs ? kArmCalleeSaveArgSpills : 0) |
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(type == CalleeSaveType::kSaveAllCalleeSaves ? kArmCalleeSaveAllSpills : 0) |
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(type == CalleeSaveType::kSaveEverything ? kArmCalleeSaveEverythingSpills : 0);
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}
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static constexpr uint32_t GetFpSpills(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return kArmCalleeSaveFpAlwaysSpills | kArmCalleeSaveFpRefSpills |
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(type == CalleeSaveType::kSaveRefsAndArgs ? kArmCalleeSaveFpArgSpills : 0) |
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(type == CalleeSaveType::kSaveAllCalleeSaves ? kArmCalleeSaveFpAllSpills : 0) |
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(type == CalleeSaveType::kSaveEverything ? kArmCalleeSaveFpEverythingSpills : 0);
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}
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static constexpr uint32_t GetFrameSize(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return RoundUp((POPCOUNT(GetCoreSpills(type)) /* gprs */ +
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POPCOUNT(GetFpSpills(type)) /* fprs */ +
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1 /* Method* */) * static_cast<size_t>(kArmPointerSize), kStackAlignment);
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}
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static constexpr QuickMethodFrameInfo GetMethodFrameInfo(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return QuickMethodFrameInfo(GetFrameSize(type), GetCoreSpills(type), GetFpSpills(type));
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}
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static constexpr size_t GetFpr1Offset(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return GetFrameSize(type) -
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(POPCOUNT(GetCoreSpills(type)) +
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POPCOUNT(GetFpSpills(type))) * static_cast<size_t>(kArmPointerSize);
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}
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static constexpr size_t GetGpr1Offset(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return GetFrameSize(type) -
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POPCOUNT(GetCoreSpills(type)) * static_cast<size_t>(kArmPointerSize);
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}
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static constexpr size_t GetReturnPcOffset(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return GetFrameSize(type) - static_cast<size_t>(kArmPointerSize);
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}
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};
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} // namespace arm
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} // namespace art
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#endif // ART_RUNTIME_ARCH_ARM_CALLEE_SAVE_FRAME_ARM_H_
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