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_MIPS_QUICK_METHOD_FRAME_INFO_MIPS_H_ 18 #define ART_RUNTIME_ARCH_MIPS_QUICK_METHOD_FRAME_INFO_MIPS_H_ 19 20 #include "base/bit_utils.h" 21 #include "quick/quick_method_frame_info.h" 22 #include "registers_mips.h" 23 #include "runtime.h" // for Runtime::CalleeSaveType. 24 25 namespace art { 26 namespace mips { 27 28 static constexpr uint32_t kMipsCalleeSaveAlwaysSpills = 29 (1 << art::mips::RA); 30 static constexpr uint32_t kMipsCalleeSaveRefSpills = 31 (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) | (1 << art::mips::S5) | 32 (1 << art::mips::S6) | (1 << art::mips::S7) | (1 << art::mips::GP) | (1 << art::mips::FP); 33 static constexpr uint32_t kMipsCalleeSaveArgSpills = 34 (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3); 35 static constexpr uint32_t kMipsCalleeSaveAllSpills = 36 (1 << art::mips::S0) | (1 << art::mips::S1); 37 38 static constexpr uint32_t kMipsCalleeSaveFpAlwaysSpills = 0; 39 static constexpr uint32_t kMipsCalleeSaveFpRefSpills = 0; 40 static constexpr uint32_t kMipsCalleeSaveFpArgSpills = 41 (1 << art::mips::F12) | (1 << art::mips::F13) | (1 << art::mips::F14) | (1 << art::mips::F15); 42 static constexpr uint32_t kMipsCalleeSaveAllFPSpills = 43 (1 << art::mips::F20) | (1 << art::mips::F21) | (1 << art::mips::F22) | (1 << art::mips::F23) | 44 (1 << art::mips::F24) | (1 << art::mips::F25) | (1 << art::mips::F26) | (1 << art::mips::F27) | 45 (1 << art::mips::F28) | (1 << art::mips::F29) | (1 << art::mips::F30) | (1 << art::mips::F31); 46 MipsCalleeSaveCoreSpills(Runtime::CalleeSaveType type)47constexpr uint32_t MipsCalleeSaveCoreSpills(Runtime::CalleeSaveType type) { 48 return kMipsCalleeSaveAlwaysSpills | kMipsCalleeSaveRefSpills | 49 (type == Runtime::kRefsAndArgs ? kMipsCalleeSaveArgSpills : 0) | 50 (type == Runtime::kSaveAll ? kMipsCalleeSaveAllSpills : 0); 51 } 52 MipsCalleeSaveFPSpills(Runtime::CalleeSaveType type)53constexpr uint32_t MipsCalleeSaveFPSpills(Runtime::CalleeSaveType type) { 54 return kMipsCalleeSaveFpAlwaysSpills | kMipsCalleeSaveFpRefSpills | 55 (type == Runtime::kRefsAndArgs ? kMipsCalleeSaveFpArgSpills : 0) | 56 (type == Runtime::kSaveAll ? kMipsCalleeSaveAllFPSpills : 0); 57 } 58 MipsCalleeSaveFrameSize(Runtime::CalleeSaveType type)59constexpr uint32_t MipsCalleeSaveFrameSize(Runtime::CalleeSaveType type) { 60 return RoundUp((POPCOUNT(MipsCalleeSaveCoreSpills(type)) /* gprs */ + 61 POPCOUNT(MipsCalleeSaveFPSpills(type)) /* fprs */ + 62 1 /* Method* */) * kMipsPointerSize, kStackAlignment); 63 } 64 MipsCalleeSaveMethodFrameInfo(Runtime::CalleeSaveType type)65constexpr QuickMethodFrameInfo MipsCalleeSaveMethodFrameInfo(Runtime::CalleeSaveType type) { 66 return QuickMethodFrameInfo(MipsCalleeSaveFrameSize(type), 67 MipsCalleeSaveCoreSpills(type), 68 MipsCalleeSaveFPSpills(type)); 69 } 70 71 } // namespace mips 72 } // namespace art 73 74 #endif // ART_RUNTIME_ARCH_MIPS_QUICK_METHOD_FRAME_INFO_MIPS_H_ 75