assembler_arm.cc revision 849cc5e54cbd05f4efbd6082e03547ed9284639f
12faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes/* 22faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * Copyright (C) 2011 The Android Open Source Project 32faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * 42faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 52faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * you may not use this file except in compliance with the License. 62faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * You may obtain a copy of the License at 72faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * 82faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 92faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * 102faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * Unless required by applicable law or agreed to in writing, software 112faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 122faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 132faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * See the License for the specific language governing permissions and 142faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes * limitations under the License. 152faa5f1271587cda765f26bcf2951065300a01ffElliott Hughes */ 16a5d5cfda6239d8876937e75eba43222f639d2447Carl Shapiro 172c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers#include "assembler_arm.h" 182c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers 1907ed66b5ae659c452cbe1ab20c3dbf1d6f546461Elliott Hughes#include "base/logging.h" 20166db04e259ca51838c311891598664deeed85adIan Rogers#include "entrypoints/quick/quick_entrypoints.h" 21578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "offsets.h" 22e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro#include "thread.h" 23578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "utils.h" 24a5d5cfda6239d8876937e75eba43222f639d2447Carl Shapiro 256b6b5f0e67ce03f38223a525612955663bc1799bCarl Shapironamespace art { 262c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersnamespace arm { 27a5d5cfda6239d8876937e75eba43222f639d2447Carl Shapiro 2865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonconst char* kRegisterNames[] = { 291f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", 301f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes "fp", "ip", "sp", "lr", "pc" 311f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes}; 3265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 3365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonconst char* kConditionNames[] = { 3465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison "EQ", "NE", "CS", "CC", "MI", "PL", "VS", "VC", "HI", "LS", "GE", "LT", "GT", 3565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison "LE", "AL", 3665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison}; 3765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 381f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Register& rhs) { 391f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes if (rhs >= R0 && rhs <= PC) { 401f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes os << kRegisterNames[rhs]; 411f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes } else { 42b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers os << "Register[" << static_cast<int>(rhs) << "]"; 431f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes } 441f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes return os; 451f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes} 461f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes 471f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes 481f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughesstd::ostream& operator<<(std::ostream& os, const SRegister& rhs) { 491f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes if (rhs >= S0 && rhs < kNumberOfSRegisters) { 50b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers os << "s" << static_cast<int>(rhs); 511f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes } else { 52b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers os << "SRegister[" << static_cast<int>(rhs) << "]"; 531f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes } 541f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes return os; 551f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes} 561f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes 571f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes 581f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughesstd::ostream& operator<<(std::ostream& os, const DRegister& rhs) { 591f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes if (rhs >= D0 && rhs < kNumberOfDRegisters) { 60b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers os << "d" << static_cast<int>(rhs); 611f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes } else { 62b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers os << "DRegister[" << static_cast<int>(rhs) << "]"; 631f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes } 641f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes return os; 651f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes} 661f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes 671f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Condition& rhs) { 681f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes if (rhs >= EQ && rhs <= AL) { 691f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes os << kConditionNames[rhs]; 701f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes } else { 71b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers os << "Condition[" << static_cast<int>(rhs) << "]"; 721f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes } 731f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes return os; 741f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes} 751f359b08f5ad33ae72e4073b86a9257fe1ed11e5Elliott Hughes 7696f89a290eb67d7bf4b1636798fa28df14309cc7Nicolas GeoffrayShifterOperand::ShifterOperand(uint32_t immed) 7796f89a290eb67d7bf4b1636798fa28df14309cc7Nicolas Geoffray : type_(kImmediate), rm_(kNoRegister), rs_(kNoRegister), 7896f89a290eb67d7bf4b1636798fa28df14309cc7Nicolas Geoffray is_rotate_(false), is_shift_(false), shift_(kNoShift), rotate_(0), immed_(immed) { 7996f89a290eb67d7bf4b1636798fa28df14309cc7Nicolas Geoffray CHECK(immed < (1u << 12) || ArmAssembler::ModifiedImmediate(immed) != kInvalidModifiedImmediate); 8096f89a290eb67d7bf4b1636798fa28df14309cc7Nicolas Geoffray} 81a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro 82a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro 8365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonuint32_t ShifterOperand::encodingArm() const { 8465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK(is_valid()); 8565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison switch (type_) { 8665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kImmediate: 8765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (is_rotate_) { 8865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return (rotate_ << kRotateShift) | (immed_ << kImmed8Shift); 8965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 9065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return immed_; 9165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 9265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison break; 9365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kRegister: 9465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (is_shift_) { 95849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe uint32_t shift_type; 96849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe switch (shift_) { 97849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe case arm::Shift::ROR: 98849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe shift_type = static_cast<uint32_t>(shift_); 99849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe CHECK_NE(immed_, 0U); 100849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe break; 101849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe case arm::Shift::RRX: 102849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe shift_type = static_cast<uint32_t>(arm::Shift::ROR); // Same encoding as ROR. 103849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe CHECK_EQ(immed_, 0U); 104849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe break; 105849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe default: 106849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe shift_type = static_cast<uint32_t>(shift_); 107849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe } 10865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Shifted immediate or register. 10965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (rs_ == kNoRegister) { 11065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Immediate shift. 11165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return immed_ << kShiftImmShift | 112849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe shift_type << kShiftShift | 11365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison static_cast<uint32_t>(rm_); 11465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 11565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Register shift. 11665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return static_cast<uint32_t>(rs_) << kShiftRegisterShift | 117849cc5e54cbd05f4efbd6082e03547ed9284639fAndreas Gampe shift_type << kShiftShift | (1 << 4) | 11865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison static_cast<uint32_t>(rm_); 11965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 12065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 12165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Simple register 12265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return static_cast<uint32_t>(rm_); 12365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 12465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison break; 12565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison default: 12665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Can't get here. 12765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison LOG(FATAL) << "Invalid shifter operand for ARM"; 12865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return 0; 129a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro } 130a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro} 131a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro 13245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allisonuint32_t ShifterOperand::encodingThumb() const { 13345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison switch (type_) { 13445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison case kImmediate: 13545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return immed_; 13645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison case kRegister: 13745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (is_shift_) { 13845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Shifted immediate or register. 13945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (rs_ == kNoRegister) { 14045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Immediate shift. 14145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (shift_ == RRX) { 14245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // RRX is encoded as an ROR with imm 0. 14345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return ROR << 4 | static_cast<uint32_t>(rm_); 14465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 14545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison uint32_t imm3 = immed_ >> 2; 146c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe uint32_t imm2 = immed_ & 3U /* 0b11 */; 14745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison 14845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return imm3 << 12 | imm2 << 6 | shift_ << 4 | 14945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison static_cast<uint32_t>(rm_); 15065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 15165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 15245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison LOG(FATAL) << "No register-shifted register instruction available in thumb"; 15345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return 0; 15465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 15545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } else { 15645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Simple register 15745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return static_cast<uint32_t>(rm_); 15845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 15945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison break; 16045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison default: 16145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Can't get here. 16245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison LOG(FATAL) << "Invalid shifter operand for thumb"; 16345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return 0; 164a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro } 16565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return 0; 16665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison} 16765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 16865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonbool ShifterOperand::CanHoldThumb(Register rd, Register rn, Opcode opcode, 16965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t immediate, ShifterOperand* shifter_op) { 17065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison shifter_op->type_ = kImmediate; 17165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison shifter_op->immed_ = immediate; 17265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison shifter_op->is_shift_ = false; 17365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison shifter_op->is_rotate_ = false; 17465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison switch (opcode) { 17565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case ADD: 17665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case SUB: 17765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (rn == SP) { 17865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (rd == SP) { 17965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return immediate < (1 << 9); // 9 bits allowed. 18065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 18165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return immediate < (1 << 12); // 12 bits. 18265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 18365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 18465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (immediate < (1 << 12)) { // Less than (or equal to) 12 bits can always be done. 18565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return true; 18665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 18765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return ArmAssembler::ModifiedImmediate(immediate) != kInvalidModifiedImmediate; 188a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro 18965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case MOV: 1908d486731559ba0c5e12c27b4a507181333702b7eNicolas Geoffray // TODO: Support less than or equal to 12bits. 19165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return ArmAssembler::ModifiedImmediate(immediate) != kInvalidModifiedImmediate; 19265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case MVN: 19365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison default: 19465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return ArmAssembler::ModifiedImmediate(immediate) != kInvalidModifiedImmediate; 195a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro } 196a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro} 197a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro 19865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonuint32_t Address::encodingArm() const { 19965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK(IsAbsoluteUint(12, offset_)); 20065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t encoding; 20145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (is_immed_offset_) { 20245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (offset_ < 0) { 20345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = (am_ ^ (1 << kUShift)) | -offset_; // Flip U to adjust sign. 20445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } else { 20545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = am_ | offset_; 20645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 207b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 20845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison uint32_t imm5 = offset_; 20945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison uint32_t shift = shift_; 21045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (shift == RRX) { 21145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison imm5 = 0; 21245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison shift = ROR; 21345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 21445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = am_ | static_cast<uint32_t>(rm_) | shift << 5 | offset_ << 7 | B25; 21565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 21665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison encoding |= static_cast<uint32_t>(rn_) << kRnShift; 21765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return encoding; 21865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison} 21965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 22065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 22145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allisonuint32_t Address::encodingThumb(bool is_32bit) const { 22265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t encoding = 0; 22345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (is_immed_offset_) { 22445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = static_cast<uint32_t>(rn_) << 16; 22545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Check for the T3/T4 encoding. 22645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // PUW must Offset for T3 22745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Convert ARM PU0W to PUW 22845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // The Mode is in ARM encoding format which is: 22945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // |P|U|0|W| 23045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // we need this in thumb2 mode: 23145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // |P|U|W| 23245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison 23345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison uint32_t am = am_; 23445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison int32_t offset = offset_; 23545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (offset < 0) { 23645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison am ^= 1 << kUShift; 23745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison offset = -offset; 23845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 23945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (offset_ < 0 || (offset >= 0 && offset < 256 && 24065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison am_ != Mode::Offset)) { 24145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // T4 encoding. 24245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison uint32_t PUW = am >> 21; // Move down to bottom of word. 24345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison PUW = (PUW >> 1) | (PUW & 1); // Bits 3, 2 and 0. 24445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // If P is 0 then W must be 1 (Different from ARM). 245c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe if ((PUW & 4U /* 0b100 */) == 0) { 246c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe PUW |= 1U /* 0b1 */; 24765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 24845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding |= B11 | PUW << 8 | offset; 24945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } else { 25045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // T3 encoding (also sets op1 to 0b01). 25145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding |= B23 | offset_; 25245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 25365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 25445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Register offset, possibly shifted. 25545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Need to choose between encoding T1 (16 bit) or T2. 25645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Only Offset mode is supported. Shift must be LSL and the count 25745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // is only 2 bits. 25845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison CHECK_EQ(shift_, LSL); 25945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison CHECK_LE(offset_, 4); 26045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison CHECK_EQ(am_, Offset); 26145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison bool is_t2 = is_32bit; 26245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (ArmAssembler::IsHighRegister(rn_) || ArmAssembler::IsHighRegister(rm_)) { 26345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison is_t2 = true; 26445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } else if (offset_ != 0) { 26545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison is_t2 = true; 26645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 26745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (is_t2) { 26845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = static_cast<uint32_t>(rn_) << 16 | static_cast<uint32_t>(rm_) | 26945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison offset_ << 4; 27045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } else { 27145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = static_cast<uint32_t>(rn_) << 3 | static_cast<uint32_t>(rm_) << 6; 27245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 273b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 27465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return encoding; 275b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 276b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 27765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison// This is very like the ARM encoding except the offset is 10 bits. 27865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonuint32_t Address::encodingThumbLdrdStrd() const { 27965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t encoding; 28065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t am = am_; 28165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // If P is 0 then W must be 1 (Different from ARM). 28265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t PU1W = am_ >> 21; // Move down to bottom of word. 283c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe if ((PU1W & 8U /* 0b1000 */) == 0) { 28465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison am |= 1 << 21; // Set W bit. 28565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 28665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (offset_ < 0) { 28765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison int32_t off = -offset_; 28865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK_LT(off, 1024); 289c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe CHECK_EQ((off & 3 /* 0b11 */), 0); // Must be multiple of 4. 29065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison encoding = (am ^ (1 << kUShift)) | off >> 2; // Flip U to adjust sign. 291b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 29265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK_LT(offset_, 1024); 293c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe CHECK_EQ((offset_ & 3 /* 0b11 */), 0); // Must be multiple of 4. 29465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison encoding = am | offset_ >> 2; 295b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 29665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison encoding |= static_cast<uint32_t>(rn_) << 16; 29765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return encoding; 298b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 299b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 30065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison// Encoding for ARM addressing mode 3. 30165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonuint32_t Address::encoding3() const { 30265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison const uint32_t offset_mask = (1 << 12) - 1; 30365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t encoding = encodingArm(); 30465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t offset = encoding & offset_mask; 30565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK_LT(offset, 256u); 30665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return (encoding & ~offset_mask) | ((offset & 0xf0) << 4) | (offset & 0xf); 30765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison} 308b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 30965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison// Encoding for vfp load/store addressing. 31065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonuint32_t Address::vencoding() const { 31165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison const uint32_t offset_mask = (1 << 12) - 1; 31265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t encoding = encodingArm(); 31365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t offset = encoding & offset_mask; 31465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK(IsAbsoluteUint(10, offset)); // In the range -1020 to +1020. 31565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK_ALIGNED(offset, 2); // Multiple of 4. 31665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK((am_ == Offset) || (am_ == NegOffset)); 317277ccbd200ea43590dfc06a93ae184a765327ad0Andreas Gampe uint32_t vencoding_value = (encoding & (0xf << kRnShift)) | (offset >> 2); 31865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (am_ == Offset) { 319277ccbd200ea43590dfc06a93ae184a765327ad0Andreas Gampe vencoding_value |= 1 << 23; 320b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 321277ccbd200ea43590dfc06a93ae184a765327ad0Andreas Gampe return vencoding_value; 322b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 323b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 324b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 32565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonbool Address::CanHoldLoadOffsetArm(LoadOperandType type, int offset) { 326b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers switch (type) { 327b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadSignedByte: 328b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadSignedHalfword: 329b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadUnsignedHalfword: 330b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadWordPair: 331b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(8, offset); // Addressing mode 3. 332b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadUnsignedByte: 333b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadWord: 334b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(12, offset); // Addressing mode 2. 335b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadSWord: 336b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadDWord: 337b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(10, offset); // VFP addressing mode. 338b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers default: 339b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LOG(FATAL) << "UNREACHABLE"; 3402c4257be8191c5eefde744e8965fcefc80a0a97dIan Rogers UNREACHABLE(); 341b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 342b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 343b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 344b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 34565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonbool Address::CanHoldStoreOffsetArm(StoreOperandType type, int offset) { 346b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers switch (type) { 347b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreHalfword: 348b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreWordPair: 349b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(8, offset); // Addressing mode 3. 350b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreByte: 351b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreWord: 352b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(12, offset); // Addressing mode 2. 353b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreSWord: 354b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreDWord: 355b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(10, offset); // VFP addressing mode. 356b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers default: 357b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LOG(FATAL) << "UNREACHABLE"; 3582c4257be8191c5eefde744e8965fcefc80a0a97dIan Rogers UNREACHABLE(); 359b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 360b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 361b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 36265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonbool Address::CanHoldLoadOffsetThumb(LoadOperandType type, int offset) { 363b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers switch (type) { 364b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadSignedByte: 365b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadSignedHalfword: 366b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadUnsignedHalfword: 36765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kLoadUnsignedByte: 368b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadWord: 36965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(12, offset); 37065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kLoadSWord: 37165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kLoadDWord: 37265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(10, offset); // VFP addressing mode. 373b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadWordPair: 37465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(10, offset); 3752c4257be8191c5eefde744e8965fcefc80a0a97dIan Rogers default: 376b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LOG(FATAL) << "UNREACHABLE"; 3772c4257be8191c5eefde744e8965fcefc80a0a97dIan Rogers UNREACHABLE(); 378b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 379b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 380b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 381b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 38265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonbool Address::CanHoldStoreOffsetThumb(StoreOperandType type, int offset) { 383b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers switch (type) { 384b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreHalfword: 38565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kStoreByte: 386b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreWord: 38765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(12, offset); 38865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kStoreSWord: 38965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kStoreDWord: 39065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(10, offset); // VFP addressing mode. 391b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreWordPair: 39265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(10, offset); 3932c4257be8191c5eefde744e8965fcefc80a0a97dIan Rogers default: 394b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LOG(FATAL) << "UNREACHABLE"; 3952c4257be8191c5eefde744e8965fcefc80a0a97dIan Rogers UNREACHABLE(); 396b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 397b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 398b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 39965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonvoid ArmAssembler::Pad(uint32_t bytes) { 40065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison AssemblerBuffer::EnsureCapacity ensured(&buffer_); 40165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison for (uint32_t i = 0; i < bytes; ++i) { 40213735955f39b3b304c37d2b2840663c131262c18Ian Rogers buffer_.Emit<uint8_t>(0); 4039b9ba28b1277b4ddb967c5a968c6d550febce6afCarl Shapiro } 4049b9ba28b1277b4ddb967c5a968c6d550febce6afCarl Shapiro} 4059b9ba28b1277b4ddb967c5a968c6d550febce6afCarl Shapiro 406790a6b7312979513710c366b411ba6791ddf78c2Ian Rogersconstexpr size_t kFramePointerSize = 4; 407790a6b7312979513710c366b411ba6791ddf78c2Ian Rogers 4082c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::BuildFrame(size_t frame_size, ManagedRegister method_reg, 409b5d09b2f87202bc132ac3991d4b6d71f4f6d9264Ian Rogers const std::vector<ManagedRegister>& callee_save_regs, 410fca82208f7128fcda09b6a4743199308332558a2Dmitry Petrochenko const ManagedRegisterEntrySpills& entry_spills) { 41106b37d91bb3d543002b1aee9829691f5e8bebc7eElliott Hughes CHECK_ALIGNED(frame_size, kStackAlignment); 4122c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers CHECK_EQ(R0, method_reg.AsArm().AsCoreRegister()); 413bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 41400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Push callee saves and link register. 415bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers RegList push_list = 1 << LR; 416bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers size_t pushed_values = 1; 417bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers for (size_t i = 0; i < callee_save_regs.size(); i++) { 418bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Register reg = callee_save_regs.at(i).AsArm().AsCoreRegister(); 419bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers push_list |= 1 << reg; 420bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers pushed_values++; 4210d666d8769714dcbc2acc4dd5b06f0deffa6e0a1Ian Rogers } 422bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers PushList(push_list); 423bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 42400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Increase frame to required size. 425790a6b7312979513710c366b411ba6791ddf78c2Ian Rogers CHECK_GT(frame_size, pushed_values * kFramePointerSize); // Must at least have space for Method*. 426790a6b7312979513710c366b411ba6791ddf78c2Ian Rogers size_t adjust = frame_size - (pushed_values * kFramePointerSize); 427bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers IncreaseFrameSize(adjust); 428bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 42900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Write out Method*. 430bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers StoreToOffset(kStoreWord, R0, SP, 0); 43100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 43200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Write out entry spills. 4335667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu int32_t offset = frame_size + sizeof(StackReference<mirror::ArtMethod>); 43400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers for (size_t i = 0; i < entry_spills.size(); ++i) { 4355667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu ArmManagedRegister reg = entry_spills.at(i).AsArm(); 4365667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu if (reg.IsNoRegister()) { 4375667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu // only increment stack offset. 4385667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu ManagedRegisterSpill spill = entry_spills.at(i); 4395667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu offset += spill.getSize(); 4405667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu } else if (reg.IsCoreRegister()) { 4415667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu StoreToOffset(kStoreWord, reg.AsCoreRegister(), SP, offset); 4425667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu offset += 4; 4435667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu } else if (reg.IsSRegister()) { 4445667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu StoreSToOffset(reg.AsSRegister(), SP, offset); 4455667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu offset += 4; 4465667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu } else if (reg.IsDRegister()) { 4475667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu StoreDToOffset(reg.AsDRegister(), SP, offset); 4485667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu offset += 8; 4495667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu } 45000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 451b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 452b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 4532c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::RemoveFrame(size_t frame_size, 454bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers const std::vector<ManagedRegister>& callee_save_regs) { 45506b37d91bb3d543002b1aee9829691f5e8bebc7eElliott Hughes CHECK_ALIGNED(frame_size, kStackAlignment); 45665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Compute callee saves to pop and PC. 457bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers RegList pop_list = 1 << PC; 458bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers size_t pop_values = 1; 459bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers for (size_t i = 0; i < callee_save_regs.size(); i++) { 460bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Register reg = callee_save_regs.at(i).AsArm().AsCoreRegister(); 461bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers pop_list |= 1 << reg; 462bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers pop_values++; 4630d666d8769714dcbc2acc4dd5b06f0deffa6e0a1Ian Rogers } 464bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 46565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Decrease frame to start of callee saves. 466790a6b7312979513710c366b411ba6791ddf78c2Ian Rogers CHECK_GT(frame_size, pop_values * kFramePointerSize); 467790a6b7312979513710c366b411ba6791ddf78c2Ian Rogers size_t adjust = frame_size - (pop_values * kFramePointerSize); 468bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers DecreaseFrameSize(adjust); 469bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 47065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Pop callee saves and PC. 471bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers PopList(pop_list); 4720d666d8769714dcbc2acc4dd5b06f0deffa6e0a1Ian Rogers} 4730d666d8769714dcbc2acc4dd5b06f0deffa6e0a1Ian Rogers 4742c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::IncreaseFrameSize(size_t adjust) { 475b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers AddConstant(SP, -adjust); 476b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 477b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 4782c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::DecreaseFrameSize(size_t adjust) { 479b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers AddConstant(SP, adjust); 480b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 481b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 4822c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::Store(FrameOffset dest, ManagedRegister msrc, size_t size) { 4832c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister src = msrc.AsArm(); 484e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro if (src.IsNoRegister()) { 485e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro CHECK_EQ(0u, size); 486e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } else if (src.IsCoreRegister()) { 487b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers CHECK_EQ(4u, size); 488b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, src.AsCoreRegister(), SP, dest.Int32Value()); 489e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } else if (src.IsRegisterPair()) { 490e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro CHECK_EQ(8u, size); 491e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro StoreToOffset(kStoreWord, src.AsRegisterPairLow(), SP, dest.Int32Value()); 492e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro StoreToOffset(kStoreWord, src.AsRegisterPairHigh(), 493e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro SP, dest.Int32Value() + 4); 494e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } else if (src.IsSRegister()) { 495e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro StoreSToOffset(src.AsSRegister(), SP, dest.Int32Value()); 496b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 497bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsDRegister()) << src; 498e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro StoreDToOffset(src.AsDRegister(), SP, dest.Int32Value()); 499b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 500b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 501b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 5022c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::StoreRef(FrameOffset dest, ManagedRegister msrc) { 5032c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister src = msrc.AsArm(); 504bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsCoreRegister()) << src; 505b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, src.AsCoreRegister(), SP, dest.Int32Value()); 506b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 507b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 5082c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::StoreRawPtr(FrameOffset dest, ManagedRegister msrc) { 5092c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister src = msrc.AsArm(); 510bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsCoreRegister()) << src; 511df20fe0c097073f75f22d16e72fd3636a31d3ca1Ian Rogers StoreToOffset(kStoreWord, src.AsCoreRegister(), SP, dest.Int32Value()); 512df20fe0c097073f75f22d16e72fd3636a31d3ca1Ian Rogers} 513df20fe0c097073f75f22d16e72fd3636a31d3ca1Ian Rogers 5142c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::StoreSpanning(FrameOffset dest, ManagedRegister msrc, 5152c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers FrameOffset in_off, ManagedRegister mscratch) { 5162c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister src = msrc.AsArm(); 5172c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 5187a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers StoreToOffset(kStoreWord, src.AsCoreRegister(), SP, dest.Int32Value()); 5197a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, in_off.Int32Value()); 5207a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value() + 4); 5217a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers} 5227a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers 5232c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::CopyRef(FrameOffset dest, FrameOffset src, 5242c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 5252c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 526b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, src.Int32Value()); 527b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value()); 528b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 529b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 5302c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::LoadRef(ManagedRegister mdest, ManagedRegister base, 5312c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers MemberOffset offs) { 532bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = mdest.AsArm(); 533bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsCoreRegister() && dst.IsCoreRegister()) << dst; 534bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes LoadFromOffset(kLoadWord, dst.AsCoreRegister(), 5352c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers base.AsArm().AsCoreRegister(), offs.Int32Value()); 536e63a745f26fec5a5b4162fc83f6e88a1f696c30cHiroshi Yamauchi if (kPoisonHeapReferences) { 537e63a745f26fec5a5b4162fc83f6e88a1f696c30cHiroshi Yamauchi rsb(dst.AsCoreRegister(), dst.AsCoreRegister(), ShifterOperand(0)); 538e63a745f26fec5a5b4162fc83f6e88a1f696c30cHiroshi Yamauchi } 539b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 540b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 5412c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::LoadRef(ManagedRegister mdest, FrameOffset src) { 542bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = mdest.AsArm(); 543bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsCoreRegister()) << dst; 544bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes LoadFromOffset(kLoadWord, dst.AsCoreRegister(), SP, src.Int32Value()); 545362f9bc807169bcfc8761dde067bbfb79b5ad0fdElliott Hughes} 5462c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers 5472c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::LoadRawPtr(ManagedRegister mdest, ManagedRegister base, 548a04d397b990ee7d3ce120e317c19fb4409d80d57Ian Rogers Offset offs) { 549bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = mdest.AsArm(); 550bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsCoreRegister() && dst.IsCoreRegister()) << dst; 551bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes LoadFromOffset(kLoadWord, dst.AsCoreRegister(), 5522c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers base.AsArm().AsCoreRegister(), offs.Int32Value()); 553a04d397b990ee7d3ce120e317c19fb4409d80d57Ian Rogers} 554a04d397b990ee7d3ce120e317c19fb4409d80d57Ian Rogers 5552c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::StoreImmediateToFrame(FrameOffset dest, uint32_t imm, 5562c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 5572c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 558bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 559b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadImmediate(scratch.AsCoreRegister(), imm); 560b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value()); 561b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 562b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 563dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::StoreImmediateToThread32(ThreadOffset<4> dest, uint32_t imm, 5642c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 5652c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 566bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 567b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadImmediate(scratch.AsCoreRegister(), imm); 568b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), TR, dest.Int32Value()); 569b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 570b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 571bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughesstatic void EmitLoad(ArmAssembler* assembler, ManagedRegister m_dst, 572bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes Register src_register, int32_t src_offset, size_t size) { 573bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = m_dst.AsArm(); 574bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes if (dst.IsNoRegister()) { 575bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK_EQ(0u, size) << dst; 576bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes } else if (dst.IsCoreRegister()) { 577bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK_EQ(4u, size) << dst; 578bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes assembler->LoadFromOffset(kLoadWord, dst.AsCoreRegister(), src_register, src_offset); 579bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes } else if (dst.IsRegisterPair()) { 580bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK_EQ(8u, size) << dst; 581bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes assembler->LoadFromOffset(kLoadWord, dst.AsRegisterPairLow(), src_register, src_offset); 582bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes assembler->LoadFromOffset(kLoadWord, dst.AsRegisterPairHigh(), src_register, src_offset + 4); 583bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes } else if (dst.IsSRegister()) { 584bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes assembler->LoadSFromOffset(dst.AsSRegister(), src_register, src_offset); 585b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 586bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsDRegister()) << dst; 587bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes assembler->LoadDFromOffset(dst.AsDRegister(), src_register, src_offset); 588b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 589b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 590b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 591bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughesvoid ArmAssembler::Load(ManagedRegister m_dst, FrameOffset src, size_t size) { 592bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes return EmitLoad(this, m_dst, SP, src.Int32Value(), size); 5935a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers} 5945a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers 595dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::LoadFromThread32(ManagedRegister m_dst, ThreadOffset<4> src, size_t size) { 596bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes return EmitLoad(this, m_dst, TR, src.Int32Value(), size); 597bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes} 598bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes 599dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::LoadRawPtrFromThread32(ManagedRegister m_dst, ThreadOffset<4> offs) { 600bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = m_dst.AsArm(); 601bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsCoreRegister()) << dst; 602bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes LoadFromOffset(kLoadWord, dst.AsCoreRegister(), TR, offs.Int32Value()); 603b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 604b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 605dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::CopyRawPtrFromThread32(FrameOffset fr_offs, 606dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ThreadOffset<4> thr_offs, 6072c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 6082c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 609bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 610b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 611b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers TR, thr_offs.Int32Value()); 612b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), 613b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers SP, fr_offs.Int32Value()); 614b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 615b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 616dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::CopyRawPtrToThread32(ThreadOffset<4> thr_offs, 6172c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers FrameOffset fr_offs, 6182c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 6192c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 620bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 621b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 622b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers SP, fr_offs.Int32Value()); 623b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), 624b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers TR, thr_offs.Int32Value()); 625b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 626b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 627dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::StoreStackOffsetToThread32(ThreadOffset<4> thr_offs, 6282c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers FrameOffset fr_offs, 6292c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 6302c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 631bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 632b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers AddConstant(scratch.AsCoreRegister(), SP, fr_offs.Int32Value(), AL); 633b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), 634b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers TR, thr_offs.Int32Value()); 635b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 636b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 637dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::StoreStackPointerToThread32(ThreadOffset<4> thr_offs) { 63845a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers StoreToOffset(kStoreWord, SP, TR, thr_offs.Int32Value()); 63945a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers} 64045a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 64158136caeec7cb677bb83c2eafd1f4bab5afd96c8jeffhaovoid ArmAssembler::SignExtend(ManagedRegister /*mreg*/, size_t /*size*/) { 64258136caeec7cb677bb83c2eafd1f4bab5afd96c8jeffhao UNIMPLEMENTED(FATAL) << "no sign extension necessary for arm"; 64358136caeec7cb677bb83c2eafd1f4bab5afd96c8jeffhao} 64458136caeec7cb677bb83c2eafd1f4bab5afd96c8jeffhao 645cee4d0c1c2faacf0eae748a24cc7e455e067d977jeffhaovoid ArmAssembler::ZeroExtend(ManagedRegister /*mreg*/, size_t /*size*/) { 646cee4d0c1c2faacf0eae748a24cc7e455e067d977jeffhao UNIMPLEMENTED(FATAL) << "no zero extension necessary for arm"; 647cee4d0c1c2faacf0eae748a24cc7e455e067d977jeffhao} 648cee4d0c1c2faacf0eae748a24cc7e455e067d977jeffhao 649bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughesvoid ArmAssembler::Move(ManagedRegister m_dst, ManagedRegister m_src, size_t /*size*/) { 650bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = m_dst.AsArm(); 651bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister src = m_src.AsArm(); 652bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes if (!dst.Equals(src)) { 653bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes if (dst.IsCoreRegister()) { 654bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsCoreRegister()) << src; 655bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes mov(dst.AsCoreRegister(), ShifterOperand(src.AsCoreRegister())); 656bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes } else if (dst.IsDRegister()) { 657bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsDRegister()) << src; 658bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes vmovd(dst.AsDRegister(), src.AsDRegister()); 659bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes } else if (dst.IsSRegister()) { 660bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsSRegister()) << src; 661bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes vmovs(dst.AsSRegister(), src.AsSRegister()); 662e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } else { 663bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsRegisterPair()) << dst; 664bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsRegisterPair()) << src; 66565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Ensure that the first move doesn't clobber the input of the second. 666bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes if (src.AsRegisterPairHigh() != dst.AsRegisterPairLow()) { 667bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes mov(dst.AsRegisterPairLow(), ShifterOperand(src.AsRegisterPairLow())); 668bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes mov(dst.AsRegisterPairHigh(), ShifterOperand(src.AsRegisterPairHigh())); 6697a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers } else { 670bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes mov(dst.AsRegisterPairHigh(), ShifterOperand(src.AsRegisterPairHigh())); 671bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes mov(dst.AsRegisterPairLow(), ShifterOperand(src.AsRegisterPairLow())); 6727a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers } 673e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } 674b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 675b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 676b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 677dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogersvoid ArmAssembler::Copy(FrameOffset dest, FrameOffset src, ManagedRegister mscratch, size_t size) { 6782c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 679bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 680bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(size == 4 || size == 8) << size; 681b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers if (size == 4) { 682dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, src.Int32Value()); 683dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value()); 6845381cf941d26030199fcdbe61a614ff01e55a27cShih-wei Liao } else if (size == 8) { 685dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, src.Int32Value()); 686dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value()); 687dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, src.Int32Value() + 4); 688dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value() + 4); 689b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 690b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 691b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 692dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogersvoid ArmAssembler::Copy(FrameOffset dest, ManagedRegister src_base, Offset src_offset, 693dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers ManagedRegister mscratch, size_t size) { 694dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers Register scratch = mscratch.AsArm().AsCoreRegister(); 695dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers CHECK_EQ(size, 4u); 696dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers LoadFromOffset(kLoadWord, scratch, src_base.AsArm().AsCoreRegister(), src_offset.Int32Value()); 697dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers StoreToOffset(kStoreWord, scratch, SP, dest.Int32Value()); 698dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers} 699dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers 7005a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogersvoid ArmAssembler::Copy(ManagedRegister dest_base, Offset dest_offset, FrameOffset src, 7015a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers ManagedRegister mscratch, size_t size) { 7025a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers Register scratch = mscratch.AsArm().AsCoreRegister(); 7035a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers CHECK_EQ(size, 4u); 7045a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers LoadFromOffset(kLoadWord, scratch, SP, src.Int32Value()); 7055a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers StoreToOffset(kStoreWord, scratch, dest_base.AsArm().AsCoreRegister(), dest_offset.Int32Value()); 7065a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers} 7075a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers 7081bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughesvoid ArmAssembler::Copy(FrameOffset /*dst*/, FrameOffset /*src_base*/, Offset /*src_offset*/, 7091bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes ManagedRegister /*mscratch*/, size_t /*size*/) { 710dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers UNIMPLEMENTED(FATAL); 711dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers} 712dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers 7135a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogersvoid ArmAssembler::Copy(ManagedRegister dest, Offset dest_offset, 7145a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers ManagedRegister src, Offset src_offset, 7155a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers ManagedRegister mscratch, size_t size) { 716dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers CHECK_EQ(size, 4u); 7175a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers Register scratch = mscratch.AsArm().AsCoreRegister(); 7185a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers LoadFromOffset(kLoadWord, scratch, src.AsArm().AsCoreRegister(), src_offset.Int32Value()); 7195a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers StoreToOffset(kStoreWord, scratch, dest.AsArm().AsCoreRegister(), dest_offset.Int32Value()); 7205a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers} 7215a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers 7221bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughesvoid ArmAssembler::Copy(FrameOffset /*dst*/, Offset /*dest_offset*/, FrameOffset /*src*/, Offset /*src_offset*/, 7231bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes ManagedRegister /*scratch*/, size_t /*size*/) { 7245a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers UNIMPLEMENTED(FATAL); 725dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers} 726dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers 727eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartiervoid ArmAssembler::CreateHandleScopeEntry(ManagedRegister mout_reg, 728eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier FrameOffset handle_scope_offset, 7292c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister min_reg, bool null_allowed) { 7302c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister out_reg = mout_reg.AsArm(); 7312c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister in_reg = min_reg.AsArm(); 732bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(in_reg.IsNoRegister() || in_reg.IsCoreRegister()) << in_reg; 733bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(out_reg.IsCoreRegister()) << out_reg; 734b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers if (null_allowed) { 735eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier // Null values get a handle scope entry value of 0. Otherwise, the handle scope entry is 736eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier // the address in the handle scope holding the reference. 737b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers // e.g. out_reg = (handle == 0) ? 0 : (SP+handle_offset) 738e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro if (in_reg.IsNoRegister()) { 739e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro LoadFromOffset(kLoadWord, out_reg.AsCoreRegister(), 740eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier SP, handle_scope_offset.Int32Value()); 741e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro in_reg = out_reg; 742e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } 743b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers cmp(in_reg.AsCoreRegister(), ShifterOperand(0)); 744b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers if (!out_reg.Equals(in_reg)) { 74565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison it(EQ, kItElse); 746b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadImmediate(out_reg.AsCoreRegister(), 0, EQ); 74765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 74865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison it(NE); 749b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 750eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier AddConstant(out_reg.AsCoreRegister(), SP, handle_scope_offset.Int32Value(), NE); 751b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 752eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier AddConstant(out_reg.AsCoreRegister(), SP, handle_scope_offset.Int32Value(), AL); 753b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 754b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 755b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 756eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartiervoid ArmAssembler::CreateHandleScopeEntry(FrameOffset out_off, 757eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier FrameOffset handle_scope_offset, 7582c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch, 7592c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers bool null_allowed) { 7602c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 761bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 762b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers if (null_allowed) { 763b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, 764eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier handle_scope_offset.Int32Value()); 765eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier // Null values get a handle scope entry value of 0. Otherwise, the handle scope entry is 766eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier // the address in the handle scope holding the reference. 767eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier // e.g. scratch = (scratch == 0) ? 0 : (SP+handle_scope_offset) 768b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers cmp(scratch.AsCoreRegister(), ShifterOperand(0)); 76965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison it(NE); 770eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier AddConstant(scratch.AsCoreRegister(), SP, handle_scope_offset.Int32Value(), NE); 771b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 772eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier AddConstant(scratch.AsCoreRegister(), SP, handle_scope_offset.Int32Value(), AL); 773b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 774b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, out_off.Int32Value()); 775b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 776b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 777eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartiervoid ArmAssembler::LoadReferenceFromHandleScope(ManagedRegister mout_reg, 7782c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister min_reg) { 7792c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister out_reg = mout_reg.AsArm(); 7802c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister in_reg = min_reg.AsArm(); 781bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(out_reg.IsCoreRegister()) << out_reg; 782bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(in_reg.IsCoreRegister()) << in_reg; 783b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers Label null_arg; 784b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers if (!out_reg.Equals(in_reg)) { 78565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison LoadImmediate(out_reg.AsCoreRegister(), 0, EQ); // TODO: why EQ? 786b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 787b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers cmp(in_reg.AsCoreRegister(), ShifterOperand(0)); 78865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison it(NE); 789df20fe0c097073f75f22d16e72fd3636a31d3ca1Ian Rogers LoadFromOffset(kLoadWord, out_reg.AsCoreRegister(), 790df20fe0c097073f75f22d16e72fd3636a31d3ca1Ian Rogers in_reg.AsCoreRegister(), 0, NE); 791b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 792b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 7931bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughesvoid ArmAssembler::VerifyObject(ManagedRegister /*src*/, bool /*could_be_null*/) { 79465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // TODO: not validating references. 795b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 796b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 7971bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughesvoid ArmAssembler::VerifyObject(FrameOffset /*src*/, bool /*could_be_null*/) { 79865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // TODO: not validating references. 799b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 800b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 8012c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::Call(ManagedRegister mbase, Offset offset, 8022c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 8032c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister base = mbase.AsArm(); 8042c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 805bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(base.IsCoreRegister()) << base; 806bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 807b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 808b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers base.AsCoreRegister(), offset.Int32Value()); 809b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers blx(scratch.AsCoreRegister()); 81065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // TODO: place reference map on call. 811b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 812b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 8132c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::Call(FrameOffset base, Offset offset, 8142c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 8152c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 816bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 817e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro // Call *(*(SP + base) + offset) 818e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 819e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro SP, base.Int32Value()); 820e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 821e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro scratch.AsCoreRegister(), offset.Int32Value()); 822e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro blx(scratch.AsCoreRegister()); 823e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro // TODO: place reference map on call 824e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro} 825e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro 826dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::CallFromThread32(ThreadOffset<4> /*offset*/, ManagedRegister /*scratch*/) { 827bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers UNIMPLEMENTED(FATAL); 828bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 829bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 8302c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::GetCurrentThread(ManagedRegister tr) { 8312c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers mov(tr.AsArm().AsCoreRegister(), ShifterOperand(TR)); 832668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao} 833668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao 8342c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::GetCurrentThread(FrameOffset offset, 8351bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes ManagedRegister /*scratch*/) { 836668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao StoreToOffset(kStoreWord, TR, SP, offset.Int32Value(), AL); 837668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao} 838668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao 83900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid ArmAssembler::ExceptionPoll(ManagedRegister mscratch, size_t stack_adjust) { 8402c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 84100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ArmExceptionSlowPath* slow = new ArmExceptionSlowPath(scratch, stack_adjust); 842e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro buffer_.EnqueueSlowPath(slow); 843e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 844dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers TR, Thread::ExceptionOffset<4>().Int32Value()); 845e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro cmp(scratch.AsCoreRegister(), ShifterOperand(0)); 846e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro b(slow->Entry(), NE); 847e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro} 848e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro 8492c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmExceptionSlowPath::Emit(Assembler* sasm) { 8502c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmAssembler* sp_asm = down_cast<ArmAssembler*>(sasm); 8512c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers#define __ sp_asm-> 8522c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers __ Bind(&entry_); 85300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (stack_adjust_ != 0) { // Fix up the frame. 85400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers __ DecreaseFrameSize(stack_adjust_); 85500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 85665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Pass exception object as argument. 85765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Don't care about preserving R0 as this call won't return. 85867375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers __ mov(R0, ShifterOperand(scratch_.AsCoreRegister())); 85965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Set up call to Thread::Current()->pDeliverException. 860dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers __ LoadFromOffset(kLoadWord, R12, TR, QUICK_ENTRYPOINT_OFFSET(4, pDeliverException).Int32Value()); 8612c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers __ blx(R12); 86265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Call never returns. 86367375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers __ bkpt(0); 8642c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers#undef __ 86545a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers} 86645a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 86765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 86865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonstatic int LeadingZeros(uint32_t val) { 86965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t alt; 87065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison int32_t n; 87165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison int32_t count; 87265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 87365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison count = 16; 87465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison n = 32; 87565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison do { 87665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison alt = val >> count; 87765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (alt != 0) { 87865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison n = n - count; 87965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison val = alt; 88065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 88165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison count >>= 1; 88265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } while (count); 88365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return n - val; 88465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison} 88565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 88665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 88765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonuint32_t ArmAssembler::ModifiedImmediate(uint32_t value) { 88865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison int32_t z_leading; 88965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison int32_t z_trailing; 89065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t b0 = value & 0xff; 89165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 89265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* Note: case of value==0 must use 0:000:0:0000000 encoding */ 89365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (value <= 0xFF) 89465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return b0; // 0:000:a:bcdefgh. 89565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (value == ((b0 << 16) | b0)) 89665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return (0x1 << 12) | b0; /* 0:001:a:bcdefgh */ 89765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (value == ((b0 << 24) | (b0 << 16) | (b0 << 8) | b0)) 89865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return (0x3 << 12) | b0; /* 0:011:a:bcdefgh */ 89965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison b0 = (value >> 8) & 0xff; 90065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (value == ((b0 << 24) | (b0 << 8))) 90165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return (0x2 << 12) | b0; /* 0:010:a:bcdefgh */ 90265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* Can we do it with rotation? */ 90365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison z_leading = LeadingZeros(value); 90465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison z_trailing = 32 - LeadingZeros(~value & (value - 1)); 90565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* A run of eight or fewer active bits? */ 90665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if ((z_leading + z_trailing) < 24) 90765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return kInvalidModifiedImmediate; /* No - bail */ 90865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* left-justify the constant, discarding msb (known to be 1) */ 90965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison value <<= z_leading + 1; 91065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* Create bcdefgh */ 91165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison value >>= 25; 91265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 91365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* Put it all together */ 91465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t v = 8 + z_leading; 91565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 916c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe uint32_t i = (v & 16U /* 0b10000 */) >> 4; 917c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe uint32_t imm3 = (v >> 1) & 7U /* 0b111 */; 91865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t a = v & 1; 91965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return value | i << 26 | imm3 << 12 | a << 7; 92065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison} 92165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 9222c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers} // namespace arm 9236b6b5f0e67ce03f38223a525612955663bc1799bCarl Shapiro} // namespace art 924