assembler_arm.cc revision 5667fdbb6e441dee7534ade18b628ed396daf593
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_) { 9565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Shifted immediate or register. 9665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (rs_ == kNoRegister) { 9765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Immediate shift. 9865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return immed_ << kShiftImmShift | 9965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison static_cast<uint32_t>(shift_) << kShiftShift | 10065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison static_cast<uint32_t>(rm_); 10165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 10265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Register shift. 10365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return static_cast<uint32_t>(rs_) << kShiftRegisterShift | 10465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison static_cast<uint32_t>(shift_) << kShiftShift | (1 << 4) | 10565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison static_cast<uint32_t>(rm_); 10665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 10765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 10865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Simple register 10965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return static_cast<uint32_t>(rm_); 11065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 11165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison break; 11265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison default: 11365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Can't get here. 11465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison LOG(FATAL) << "Invalid shifter operand for ARM"; 11565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return 0; 116a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro } 117a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro} 118a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro 11945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allisonuint32_t ShifterOperand::encodingThumb() const { 12045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison switch (type_) { 12145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison case kImmediate: 12245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return immed_; 12345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison case kRegister: 12445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (is_shift_) { 12545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Shifted immediate or register. 12645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (rs_ == kNoRegister) { 12745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Immediate shift. 12845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (shift_ == RRX) { 12945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // RRX is encoded as an ROR with imm 0. 13045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return ROR << 4 | static_cast<uint32_t>(rm_); 13165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 13245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison uint32_t imm3 = immed_ >> 2; 133c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe uint32_t imm2 = immed_ & 3U /* 0b11 */; 13445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison 13545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return imm3 << 12 | imm2 << 6 | shift_ << 4 | 13645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison static_cast<uint32_t>(rm_); 13765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 13865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 13945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison LOG(FATAL) << "No register-shifted register instruction available in thumb"; 14045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return 0; 14165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 14245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } else { 14345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Simple register 14445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return static_cast<uint32_t>(rm_); 14545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 14645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison break; 14745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison default: 14845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Can't get here. 14945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison LOG(FATAL) << "Invalid shifter operand for thumb"; 15045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison return 0; 151a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro } 15265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return 0; 15365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison} 15465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 15565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonbool ShifterOperand::CanHoldThumb(Register rd, Register rn, Opcode opcode, 15665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t immediate, ShifterOperand* shifter_op) { 15765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison shifter_op->type_ = kImmediate; 15865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison shifter_op->immed_ = immediate; 15965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison shifter_op->is_shift_ = false; 16065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison shifter_op->is_rotate_ = false; 16165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison switch (opcode) { 16265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case ADD: 16365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case SUB: 16465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (rn == SP) { 16565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (rd == SP) { 16665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return immediate < (1 << 9); // 9 bits allowed. 16765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 16865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return immediate < (1 << 12); // 12 bits. 16965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 17065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 17165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (immediate < (1 << 12)) { // Less than (or equal to) 12 bits can always be done. 17265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return true; 17365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 17465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return ArmAssembler::ModifiedImmediate(immediate) != kInvalidModifiedImmediate; 175a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro 17665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case MOV: 1778d486731559ba0c5e12c27b4a507181333702b7eNicolas Geoffray // TODO: Support less than or equal to 12bits. 17865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return ArmAssembler::ModifiedImmediate(immediate) != kInvalidModifiedImmediate; 17965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case MVN: 18065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison default: 18165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return ArmAssembler::ModifiedImmediate(immediate) != kInvalidModifiedImmediate; 182a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro } 183a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro} 184a2e18e1e77fc25c8260aad5daa267ababfcb65f6Carl Shapiro 18565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonuint32_t Address::encodingArm() const { 18665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK(IsAbsoluteUint(12, offset_)); 18765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t encoding; 18845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (is_immed_offset_) { 18945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (offset_ < 0) { 19045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = (am_ ^ (1 << kUShift)) | -offset_; // Flip U to adjust sign. 19145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } else { 19245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = am_ | offset_; 19345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 194b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 19545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison uint32_t imm5 = offset_; 19645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison uint32_t shift = shift_; 19745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (shift == RRX) { 19845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison imm5 = 0; 19945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison shift = ROR; 20045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 20145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = am_ | static_cast<uint32_t>(rm_) | shift << 5 | offset_ << 7 | B25; 20265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 20365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison encoding |= static_cast<uint32_t>(rn_) << kRnShift; 20465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return encoding; 20565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison} 20665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 20765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 20845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allisonuint32_t Address::encodingThumb(bool is_32bit) const { 20965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t encoding = 0; 21045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (is_immed_offset_) { 21145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = static_cast<uint32_t>(rn_) << 16; 21245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Check for the T3/T4 encoding. 21345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // PUW must Offset for T3 21445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Convert ARM PU0W to PUW 21545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // The Mode is in ARM encoding format which is: 21645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // |P|U|0|W| 21745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // we need this in thumb2 mode: 21845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // |P|U|W| 21945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison 22045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison uint32_t am = am_; 22145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison int32_t offset = offset_; 22245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (offset < 0) { 22345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison am ^= 1 << kUShift; 22445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison offset = -offset; 22545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 22645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (offset_ < 0 || (offset >= 0 && offset < 256 && 22765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison am_ != Mode::Offset)) { 22845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // T4 encoding. 22945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison uint32_t PUW = am >> 21; // Move down to bottom of word. 23045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison PUW = (PUW >> 1) | (PUW & 1); // Bits 3, 2 and 0. 23145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // If P is 0 then W must be 1 (Different from ARM). 232c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe if ((PUW & 4U /* 0b100 */) == 0) { 233c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe PUW |= 1U /* 0b1 */; 23465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 23545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding |= B11 | PUW << 8 | offset; 23645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } else { 23745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // T3 encoding (also sets op1 to 0b01). 23845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding |= B23 | offset_; 23945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 24065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 24145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Register offset, possibly shifted. 24245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Need to choose between encoding T1 (16 bit) or T2. 24345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // Only Offset mode is supported. Shift must be LSL and the count 24445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison // is only 2 bits. 24545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison CHECK_EQ(shift_, LSL); 24645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison CHECK_LE(offset_, 4); 24745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison CHECK_EQ(am_, Offset); 24845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison bool is_t2 = is_32bit; 24945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (ArmAssembler::IsHighRegister(rn_) || ArmAssembler::IsHighRegister(rm_)) { 25045fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison is_t2 = true; 25145fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } else if (offset_ != 0) { 25245fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison is_t2 = true; 25345fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 25445fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison if (is_t2) { 25545fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = static_cast<uint32_t>(rn_) << 16 | static_cast<uint32_t>(rm_) | 25645fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison offset_ << 4; 25745fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } else { 25845fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison encoding = static_cast<uint32_t>(rn_) << 3 | static_cast<uint32_t>(rm_) << 6; 25945fdb93f04b981f70f7b6d98949ab3986b7331f8Dave Allison } 260b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 26165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return encoding; 262b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 263b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 26465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison// This is very like the ARM encoding except the offset is 10 bits. 26565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonuint32_t Address::encodingThumbLdrdStrd() const { 26665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t encoding; 26765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t am = am_; 26865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // If P is 0 then W must be 1 (Different from ARM). 26965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t PU1W = am_ >> 21; // Move down to bottom of word. 270c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe if ((PU1W & 8U /* 0b1000 */) == 0) { 27165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison am |= 1 << 21; // Set W bit. 27265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 27365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (offset_ < 0) { 27465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison int32_t off = -offset_; 27565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK_LT(off, 1024); 276c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe CHECK_EQ((off & 3 /* 0b11 */), 0); // Must be multiple of 4. 27765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison encoding = (am ^ (1 << kUShift)) | off >> 2; // Flip U to adjust sign. 278b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 27965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK_LT(offset_, 1024); 280c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe CHECK_EQ((offset_ & 3 /* 0b11 */), 0); // Must be multiple of 4. 28165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison encoding = am | offset_ >> 2; 282b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 28365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison encoding |= static_cast<uint32_t>(rn_) << 16; 28465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return encoding; 285b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 286b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 28765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison// Encoding for ARM addressing mode 3. 28865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonuint32_t Address::encoding3() const { 28965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison const uint32_t offset_mask = (1 << 12) - 1; 29065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t encoding = encodingArm(); 29165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t offset = encoding & offset_mask; 29265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK_LT(offset, 256u); 29365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return (encoding & ~offset_mask) | ((offset & 0xf0) << 4) | (offset & 0xf); 29465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison} 295b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 29665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison// Encoding for vfp load/store addressing. 29765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonuint32_t Address::vencoding() const { 29865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison const uint32_t offset_mask = (1 << 12) - 1; 29965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t encoding = encodingArm(); 30065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t offset = encoding & offset_mask; 30165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK(IsAbsoluteUint(10, offset)); // In the range -1020 to +1020. 30265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK_ALIGNED(offset, 2); // Multiple of 4. 30365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison CHECK((am_ == Offset) || (am_ == NegOffset)); 30465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t vencoding = (encoding & (0xf << kRnShift)) | (offset >> 2); 30565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (am_ == Offset) { 30665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison vencoding |= 1 << 23; 307b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 30865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return vencoding; 309b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 310b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 311b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 31265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonbool Address::CanHoldLoadOffsetArm(LoadOperandType type, int offset) { 313b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers switch (type) { 314b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadSignedByte: 315b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadSignedHalfword: 316b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadUnsignedHalfword: 317b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadWordPair: 318b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(8, offset); // Addressing mode 3. 319b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadUnsignedByte: 320b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadWord: 321b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(12, offset); // Addressing mode 2. 322b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadSWord: 323b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadDWord: 324b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(10, offset); // VFP addressing mode. 325b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers default: 326b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LOG(FATAL) << "UNREACHABLE"; 327b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return false; 328b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 329b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 330b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 331b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 33265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonbool Address::CanHoldStoreOffsetArm(StoreOperandType type, int offset) { 333b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers switch (type) { 334b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreHalfword: 335b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreWordPair: 336b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(8, offset); // Addressing mode 3. 337b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreByte: 338b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreWord: 339b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(12, offset); // Addressing mode 2. 340b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreSWord: 341b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreDWord: 342b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return IsAbsoluteUint(10, offset); // VFP addressing mode. 343b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers default: 344b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LOG(FATAL) << "UNREACHABLE"; 345b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return false; 346b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 347b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 348b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 34965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonbool Address::CanHoldLoadOffsetThumb(LoadOperandType type, int offset) { 350b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers switch (type) { 351b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadSignedByte: 352b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadSignedHalfword: 353b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadUnsignedHalfword: 35465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kLoadUnsignedByte: 355b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadWord: 35665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(12, offset); 35765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kLoadSWord: 35865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kLoadDWord: 35965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(10, offset); // VFP addressing mode. 360b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kLoadWordPair: 36165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(10, offset); 36265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison default: 363b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LOG(FATAL) << "UNREACHABLE"; 36465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return false; 365b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 366b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 367b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 368b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 36965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonbool Address::CanHoldStoreOffsetThumb(StoreOperandType type, int offset) { 370b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers switch (type) { 371b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreHalfword: 37265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kStoreByte: 373b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreWord: 37465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(12, offset); 37565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kStoreSWord: 37665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison case kStoreDWord: 37765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(10, offset); // VFP addressing mode. 378b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers case kStoreWordPair: 37965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return IsAbsoluteUint(10, offset); 38065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison default: 381b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LOG(FATAL) << "UNREACHABLE"; 38265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return false; 383b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 384b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 385b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 38665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonvoid ArmAssembler::Pad(uint32_t bytes) { 38765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison AssemblerBuffer::EnsureCapacity ensured(&buffer_); 38865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison for (uint32_t i = 0; i < bytes; ++i) { 38913735955f39b3b304c37d2b2840663c131262c18Ian Rogers buffer_.Emit<uint8_t>(0); 3909b9ba28b1277b4ddb967c5a968c6d550febce6afCarl Shapiro } 3919b9ba28b1277b4ddb967c5a968c6d550febce6afCarl Shapiro} 3929b9ba28b1277b4ddb967c5a968c6d550febce6afCarl Shapiro 393790a6b7312979513710c366b411ba6791ddf78c2Ian Rogersconstexpr size_t kFramePointerSize = 4; 394790a6b7312979513710c366b411ba6791ddf78c2Ian Rogers 3952c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::BuildFrame(size_t frame_size, ManagedRegister method_reg, 396b5d09b2f87202bc132ac3991d4b6d71f4f6d9264Ian Rogers const std::vector<ManagedRegister>& callee_save_regs, 397fca82208f7128fcda09b6a4743199308332558a2Dmitry Petrochenko const ManagedRegisterEntrySpills& entry_spills) { 39806b37d91bb3d543002b1aee9829691f5e8bebc7eElliott Hughes CHECK_ALIGNED(frame_size, kStackAlignment); 3992c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers CHECK_EQ(R0, method_reg.AsArm().AsCoreRegister()); 400bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 40100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Push callee saves and link register. 402bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers RegList push_list = 1 << LR; 403bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers size_t pushed_values = 1; 404bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers for (size_t i = 0; i < callee_save_regs.size(); i++) { 405bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Register reg = callee_save_regs.at(i).AsArm().AsCoreRegister(); 406bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers push_list |= 1 << reg; 407bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers pushed_values++; 4080d666d8769714dcbc2acc4dd5b06f0deffa6e0a1Ian Rogers } 409bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers PushList(push_list); 410bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 41100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Increase frame to required size. 412790a6b7312979513710c366b411ba6791ddf78c2Ian Rogers CHECK_GT(frame_size, pushed_values * kFramePointerSize); // Must at least have space for Method*. 413790a6b7312979513710c366b411ba6791ddf78c2Ian Rogers size_t adjust = frame_size - (pushed_values * kFramePointerSize); 414bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers IncreaseFrameSize(adjust); 415bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 41600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Write out Method*. 417bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers StoreToOffset(kStoreWord, R0, SP, 0); 41800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 41900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Write out entry spills. 4205667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu int32_t offset = frame_size + sizeof(StackReference<mirror::ArtMethod>); 42100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers for (size_t i = 0; i < entry_spills.size(); ++i) { 4225667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu ArmManagedRegister reg = entry_spills.at(i).AsArm(); 4235667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu if (reg.IsNoRegister()) { 4245667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu // only increment stack offset. 4255667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu ManagedRegisterSpill spill = entry_spills.at(i); 4265667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu offset += spill.getSize(); 4275667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu } else if (reg.IsCoreRegister()) { 4285667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu StoreToOffset(kStoreWord, reg.AsCoreRegister(), SP, offset); 4295667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu offset += 4; 4305667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu } else if (reg.IsSRegister()) { 4315667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu StoreSToOffset(reg.AsSRegister(), SP, offset); 4325667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu offset += 4; 4335667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu } else if (reg.IsDRegister()) { 4345667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu StoreDToOffset(reg.AsDRegister(), SP, offset); 4355667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu offset += 8; 4365667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu } 43700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 438b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 439b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 4402c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::RemoveFrame(size_t frame_size, 441bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers const std::vector<ManagedRegister>& callee_save_regs) { 44206b37d91bb3d543002b1aee9829691f5e8bebc7eElliott Hughes CHECK_ALIGNED(frame_size, kStackAlignment); 44365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Compute callee saves to pop and PC. 444bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers RegList pop_list = 1 << PC; 445bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers size_t pop_values = 1; 446bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers for (size_t i = 0; i < callee_save_regs.size(); i++) { 447bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Register reg = callee_save_regs.at(i).AsArm().AsCoreRegister(); 448bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers pop_list |= 1 << reg; 449bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers pop_values++; 4500d666d8769714dcbc2acc4dd5b06f0deffa6e0a1Ian Rogers } 451bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 45265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Decrease frame to start of callee saves. 453790a6b7312979513710c366b411ba6791ddf78c2Ian Rogers CHECK_GT(frame_size, pop_values * kFramePointerSize); 454790a6b7312979513710c366b411ba6791ddf78c2Ian Rogers size_t adjust = frame_size - (pop_values * kFramePointerSize); 455bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers DecreaseFrameSize(adjust); 456bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 45765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Pop callee saves and PC. 458bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers PopList(pop_list); 4590d666d8769714dcbc2acc4dd5b06f0deffa6e0a1Ian Rogers} 4600d666d8769714dcbc2acc4dd5b06f0deffa6e0a1Ian Rogers 4612c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::IncreaseFrameSize(size_t adjust) { 462b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers AddConstant(SP, -adjust); 463b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 464b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 4652c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::DecreaseFrameSize(size_t adjust) { 466b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers AddConstant(SP, adjust); 467b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 468b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 4692c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::Store(FrameOffset dest, ManagedRegister msrc, size_t size) { 4702c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister src = msrc.AsArm(); 471e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro if (src.IsNoRegister()) { 472e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro CHECK_EQ(0u, size); 473e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } else if (src.IsCoreRegister()) { 474b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers CHECK_EQ(4u, size); 475b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, src.AsCoreRegister(), SP, dest.Int32Value()); 476e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } else if (src.IsRegisterPair()) { 477e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro CHECK_EQ(8u, size); 478e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro StoreToOffset(kStoreWord, src.AsRegisterPairLow(), SP, dest.Int32Value()); 479e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro StoreToOffset(kStoreWord, src.AsRegisterPairHigh(), 480e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro SP, dest.Int32Value() + 4); 481e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } else if (src.IsSRegister()) { 482e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro StoreSToOffset(src.AsSRegister(), SP, dest.Int32Value()); 483b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 484bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsDRegister()) << src; 485e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro StoreDToOffset(src.AsDRegister(), SP, dest.Int32Value()); 486b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 487b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 488b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 4892c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::StoreRef(FrameOffset dest, ManagedRegister msrc) { 4902c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister src = msrc.AsArm(); 491bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsCoreRegister()) << src; 492b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, src.AsCoreRegister(), SP, dest.Int32Value()); 493b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 494b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 4952c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::StoreRawPtr(FrameOffset dest, ManagedRegister msrc) { 4962c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister src = msrc.AsArm(); 497bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsCoreRegister()) << src; 498df20fe0c097073f75f22d16e72fd3636a31d3ca1Ian Rogers StoreToOffset(kStoreWord, src.AsCoreRegister(), SP, dest.Int32Value()); 499df20fe0c097073f75f22d16e72fd3636a31d3ca1Ian Rogers} 500df20fe0c097073f75f22d16e72fd3636a31d3ca1Ian Rogers 5012c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::StoreSpanning(FrameOffset dest, ManagedRegister msrc, 5022c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers FrameOffset in_off, ManagedRegister mscratch) { 5032c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister src = msrc.AsArm(); 5042c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 5057a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers StoreToOffset(kStoreWord, src.AsCoreRegister(), SP, dest.Int32Value()); 5067a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, in_off.Int32Value()); 5077a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value() + 4); 5087a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers} 5097a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers 5102c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::CopyRef(FrameOffset dest, FrameOffset src, 5112c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 5122c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 513b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, src.Int32Value()); 514b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value()); 515b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 516b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 5172c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::LoadRef(ManagedRegister mdest, ManagedRegister base, 5182c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers MemberOffset offs) { 519bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = mdest.AsArm(); 520bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsCoreRegister() && dst.IsCoreRegister()) << dst; 521bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes LoadFromOffset(kLoadWord, dst.AsCoreRegister(), 5222c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers base.AsArm().AsCoreRegister(), offs.Int32Value()); 523e63a745f26fec5a5b4162fc83f6e88a1f696c30cHiroshi Yamauchi if (kPoisonHeapReferences) { 524e63a745f26fec5a5b4162fc83f6e88a1f696c30cHiroshi Yamauchi rsb(dst.AsCoreRegister(), dst.AsCoreRegister(), ShifterOperand(0)); 525e63a745f26fec5a5b4162fc83f6e88a1f696c30cHiroshi Yamauchi } 526b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 527b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 5282c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::LoadRef(ManagedRegister mdest, FrameOffset src) { 529bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = mdest.AsArm(); 530bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsCoreRegister()) << dst; 531bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes LoadFromOffset(kLoadWord, dst.AsCoreRegister(), SP, src.Int32Value()); 532362f9bc807169bcfc8761dde067bbfb79b5ad0fdElliott Hughes} 5332c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers 5342c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::LoadRawPtr(ManagedRegister mdest, ManagedRegister base, 535a04d397b990ee7d3ce120e317c19fb4409d80d57Ian Rogers Offset offs) { 536bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = mdest.AsArm(); 537bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsCoreRegister() && dst.IsCoreRegister()) << dst; 538bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes LoadFromOffset(kLoadWord, dst.AsCoreRegister(), 5392c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers base.AsArm().AsCoreRegister(), offs.Int32Value()); 540a04d397b990ee7d3ce120e317c19fb4409d80d57Ian Rogers} 541a04d397b990ee7d3ce120e317c19fb4409d80d57Ian Rogers 5422c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::StoreImmediateToFrame(FrameOffset dest, uint32_t imm, 5432c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 5442c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 545bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 546b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadImmediate(scratch.AsCoreRegister(), imm); 547b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value()); 548b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 549b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 550dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::StoreImmediateToThread32(ThreadOffset<4> dest, uint32_t imm, 5512c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 5522c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 553bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 554b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadImmediate(scratch.AsCoreRegister(), imm); 555b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), TR, dest.Int32Value()); 556b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 557b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 558bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughesstatic void EmitLoad(ArmAssembler* assembler, ManagedRegister m_dst, 559bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes Register src_register, int32_t src_offset, size_t size) { 560bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = m_dst.AsArm(); 561bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes if (dst.IsNoRegister()) { 562bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK_EQ(0u, size) << dst; 563bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes } else if (dst.IsCoreRegister()) { 564bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK_EQ(4u, size) << dst; 565bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes assembler->LoadFromOffset(kLoadWord, dst.AsCoreRegister(), src_register, src_offset); 566bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes } else if (dst.IsRegisterPair()) { 567bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK_EQ(8u, size) << dst; 568bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes assembler->LoadFromOffset(kLoadWord, dst.AsRegisterPairLow(), src_register, src_offset); 569bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes assembler->LoadFromOffset(kLoadWord, dst.AsRegisterPairHigh(), src_register, src_offset + 4); 570bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes } else if (dst.IsSRegister()) { 571bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes assembler->LoadSFromOffset(dst.AsSRegister(), src_register, src_offset); 572b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 573bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsDRegister()) << dst; 574bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes assembler->LoadDFromOffset(dst.AsDRegister(), src_register, src_offset); 575b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 576b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 577b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 578bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughesvoid ArmAssembler::Load(ManagedRegister m_dst, FrameOffset src, size_t size) { 579bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes return EmitLoad(this, m_dst, SP, src.Int32Value(), size); 5805a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers} 5815a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers 582dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::LoadFromThread32(ManagedRegister m_dst, ThreadOffset<4> src, size_t size) { 583bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes return EmitLoad(this, m_dst, TR, src.Int32Value(), size); 584bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes} 585bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes 586dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::LoadRawPtrFromThread32(ManagedRegister m_dst, ThreadOffset<4> offs) { 587bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = m_dst.AsArm(); 588bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsCoreRegister()) << dst; 589bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes LoadFromOffset(kLoadWord, dst.AsCoreRegister(), TR, offs.Int32Value()); 590b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 591b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 592dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::CopyRawPtrFromThread32(FrameOffset fr_offs, 593dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ThreadOffset<4> thr_offs, 5942c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 5952c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 596bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 597b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 598b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers TR, thr_offs.Int32Value()); 599b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), 600b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers SP, fr_offs.Int32Value()); 601b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 602b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 603dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::CopyRawPtrToThread32(ThreadOffset<4> thr_offs, 6042c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers FrameOffset fr_offs, 6052c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 6062c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 607bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 608b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 609b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers SP, fr_offs.Int32Value()); 610b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), 611b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers TR, thr_offs.Int32Value()); 612b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 613b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 614dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::StoreStackOffsetToThread32(ThreadOffset<4> thr_offs, 6152c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers FrameOffset fr_offs, 6162c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 6172c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 618bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 619b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers AddConstant(scratch.AsCoreRegister(), SP, fr_offs.Int32Value(), AL); 620b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), 621b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers TR, thr_offs.Int32Value()); 622b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 623b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 624dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::StoreStackPointerToThread32(ThreadOffset<4> thr_offs) { 62545a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers StoreToOffset(kStoreWord, SP, TR, thr_offs.Int32Value()); 62645a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers} 62745a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 62858136caeec7cb677bb83c2eafd1f4bab5afd96c8jeffhaovoid ArmAssembler::SignExtend(ManagedRegister /*mreg*/, size_t /*size*/) { 62958136caeec7cb677bb83c2eafd1f4bab5afd96c8jeffhao UNIMPLEMENTED(FATAL) << "no sign extension necessary for arm"; 63058136caeec7cb677bb83c2eafd1f4bab5afd96c8jeffhao} 63158136caeec7cb677bb83c2eafd1f4bab5afd96c8jeffhao 632cee4d0c1c2faacf0eae748a24cc7e455e067d977jeffhaovoid ArmAssembler::ZeroExtend(ManagedRegister /*mreg*/, size_t /*size*/) { 633cee4d0c1c2faacf0eae748a24cc7e455e067d977jeffhao UNIMPLEMENTED(FATAL) << "no zero extension necessary for arm"; 634cee4d0c1c2faacf0eae748a24cc7e455e067d977jeffhao} 635cee4d0c1c2faacf0eae748a24cc7e455e067d977jeffhao 636bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughesvoid ArmAssembler::Move(ManagedRegister m_dst, ManagedRegister m_src, size_t /*size*/) { 637bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister dst = m_dst.AsArm(); 638bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes ArmManagedRegister src = m_src.AsArm(); 639bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes if (!dst.Equals(src)) { 640bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes if (dst.IsCoreRegister()) { 641bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsCoreRegister()) << src; 642bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes mov(dst.AsCoreRegister(), ShifterOperand(src.AsCoreRegister())); 643bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes } else if (dst.IsDRegister()) { 644bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsDRegister()) << src; 645bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes vmovd(dst.AsDRegister(), src.AsDRegister()); 646bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes } else if (dst.IsSRegister()) { 647bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsSRegister()) << src; 648bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes vmovs(dst.AsSRegister(), src.AsSRegister()); 649e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } else { 650bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(dst.IsRegisterPair()) << dst; 651bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(src.IsRegisterPair()) << src; 65265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Ensure that the first move doesn't clobber the input of the second. 653bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes if (src.AsRegisterPairHigh() != dst.AsRegisterPairLow()) { 654bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes mov(dst.AsRegisterPairLow(), ShifterOperand(src.AsRegisterPairLow())); 655bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes mov(dst.AsRegisterPairHigh(), ShifterOperand(src.AsRegisterPairHigh())); 6567a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers } else { 657bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes mov(dst.AsRegisterPairHigh(), ShifterOperand(src.AsRegisterPairHigh())); 658bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes mov(dst.AsRegisterPairLow(), ShifterOperand(src.AsRegisterPairLow())); 6597a99c11d220ec68c208b507570e3a78c2c18a7a1Ian Rogers } 660e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } 661b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 662b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 663b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 664dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogersvoid ArmAssembler::Copy(FrameOffset dest, FrameOffset src, ManagedRegister mscratch, size_t size) { 6652c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 666bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 667bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(size == 4 || size == 8) << size; 668b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers if (size == 4) { 669dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, src.Int32Value()); 670dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value()); 6715381cf941d26030199fcdbe61a614ff01e55a27cShih-wei Liao } else if (size == 8) { 672dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, src.Int32Value()); 673dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value()); 674dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, src.Int32Value() + 4); 675dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, dest.Int32Value() + 4); 676b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 677b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 678b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 679dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogersvoid ArmAssembler::Copy(FrameOffset dest, ManagedRegister src_base, Offset src_offset, 680dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers ManagedRegister mscratch, size_t size) { 681dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers Register scratch = mscratch.AsArm().AsCoreRegister(); 682dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers CHECK_EQ(size, 4u); 683dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers LoadFromOffset(kLoadWord, scratch, src_base.AsArm().AsCoreRegister(), src_offset.Int32Value()); 684dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers StoreToOffset(kStoreWord, scratch, SP, dest.Int32Value()); 685dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers} 686dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers 6875a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogersvoid ArmAssembler::Copy(ManagedRegister dest_base, Offset dest_offset, FrameOffset src, 6885a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers ManagedRegister mscratch, size_t size) { 6895a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers Register scratch = mscratch.AsArm().AsCoreRegister(); 6905a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers CHECK_EQ(size, 4u); 6915a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers LoadFromOffset(kLoadWord, scratch, SP, src.Int32Value()); 6925a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers StoreToOffset(kStoreWord, scratch, dest_base.AsArm().AsCoreRegister(), dest_offset.Int32Value()); 6935a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers} 6945a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers 6951bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughesvoid ArmAssembler::Copy(FrameOffset /*dst*/, FrameOffset /*src_base*/, Offset /*src_offset*/, 6961bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes ManagedRegister /*mscratch*/, size_t /*size*/) { 697dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers UNIMPLEMENTED(FATAL); 698dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers} 699dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers 7005a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogersvoid ArmAssembler::Copy(ManagedRegister dest, Offset dest_offset, 7015a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers ManagedRegister src, Offset src_offset, 7025a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers ManagedRegister mscratch, size_t size) { 703dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers CHECK_EQ(size, 4u); 7045a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers Register scratch = mscratch.AsArm().AsCoreRegister(); 7055a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers LoadFromOffset(kLoadWord, scratch, src.AsArm().AsCoreRegister(), src_offset.Int32Value()); 7065a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers StoreToOffset(kStoreWord, scratch, dest.AsArm().AsCoreRegister(), dest_offset.Int32Value()); 7075a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers} 7085a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers 7091bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughesvoid ArmAssembler::Copy(FrameOffset /*dst*/, Offset /*dest_offset*/, FrameOffset /*src*/, Offset /*src_offset*/, 7101bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes ManagedRegister /*scratch*/, size_t /*size*/) { 7115a7a74a042e73a355f5cedffa0d2faf5340028faIan Rogers UNIMPLEMENTED(FATAL); 712dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers} 713dc51b79e65abcdad094ccd5e5a2caf5153433d49Ian Rogers 714eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartiervoid ArmAssembler::CreateHandleScopeEntry(ManagedRegister mout_reg, 715eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier FrameOffset handle_scope_offset, 7162c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister min_reg, bool null_allowed) { 7172c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister out_reg = mout_reg.AsArm(); 7182c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister in_reg = min_reg.AsArm(); 719bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(in_reg.IsNoRegister() || in_reg.IsCoreRegister()) << in_reg; 720bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(out_reg.IsCoreRegister()) << out_reg; 721b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers if (null_allowed) { 722eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier // Null values get a handle scope entry value of 0. Otherwise, the handle scope entry is 723eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier // the address in the handle scope holding the reference. 724b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers // e.g. out_reg = (handle == 0) ? 0 : (SP+handle_offset) 725e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro if (in_reg.IsNoRegister()) { 726e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro LoadFromOffset(kLoadWord, out_reg.AsCoreRegister(), 727eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier SP, handle_scope_offset.Int32Value()); 728e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro in_reg = out_reg; 729e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro } 730b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers cmp(in_reg.AsCoreRegister(), ShifterOperand(0)); 731b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers if (!out_reg.Equals(in_reg)) { 73265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison it(EQ, kItElse); 733b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadImmediate(out_reg.AsCoreRegister(), 0, EQ); 73465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } else { 73565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison it(NE); 736b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 737eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier AddConstant(out_reg.AsCoreRegister(), SP, handle_scope_offset.Int32Value(), NE); 738b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 739eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier AddConstant(out_reg.AsCoreRegister(), SP, handle_scope_offset.Int32Value(), AL); 740b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 741b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 742b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 743eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartiervoid ArmAssembler::CreateHandleScopeEntry(FrameOffset out_off, 744eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier FrameOffset handle_scope_offset, 7452c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch, 7462c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers bool null_allowed) { 7472c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 748bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 749b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers if (null_allowed) { 750b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), SP, 751eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier handle_scope_offset.Int32Value()); 752eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier // Null values get a handle scope entry value of 0. Otherwise, the handle scope entry is 753eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier // the address in the handle scope holding the reference. 754eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier // e.g. scratch = (scratch == 0) ? 0 : (SP+handle_scope_offset) 755b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers cmp(scratch.AsCoreRegister(), ShifterOperand(0)); 75665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison it(NE); 757eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier AddConstant(scratch.AsCoreRegister(), SP, handle_scope_offset.Int32Value(), NE); 758b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 759eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartier AddConstant(scratch.AsCoreRegister(), SP, handle_scope_offset.Int32Value(), AL); 760b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 761b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers StoreToOffset(kStoreWord, scratch.AsCoreRegister(), SP, out_off.Int32Value()); 762b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 763b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 764eb8167a4f4d27fce0530f6724ab8032610cd146bMathieu Chartiervoid ArmAssembler::LoadReferenceFromHandleScope(ManagedRegister mout_reg, 7652c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister min_reg) { 7662c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister out_reg = mout_reg.AsArm(); 7672c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister in_reg = min_reg.AsArm(); 768bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(out_reg.IsCoreRegister()) << out_reg; 769bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(in_reg.IsCoreRegister()) << in_reg; 770b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers Label null_arg; 771b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers if (!out_reg.Equals(in_reg)) { 77265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison LoadImmediate(out_reg.AsCoreRegister(), 0, EQ); // TODO: why EQ? 773b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 774b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers cmp(in_reg.AsCoreRegister(), ShifterOperand(0)); 77565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison it(NE); 776df20fe0c097073f75f22d16e72fd3636a31d3ca1Ian Rogers LoadFromOffset(kLoadWord, out_reg.AsCoreRegister(), 777df20fe0c097073f75f22d16e72fd3636a31d3ca1Ian Rogers in_reg.AsCoreRegister(), 0, NE); 778b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 779b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 7801bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughesvoid ArmAssembler::VerifyObject(ManagedRegister /*src*/, bool /*could_be_null*/) { 78165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // TODO: not validating references. 782b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 783b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 7841bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughesvoid ArmAssembler::VerifyObject(FrameOffset /*src*/, bool /*could_be_null*/) { 78565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // TODO: not validating references. 786b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 787b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 7882c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::Call(ManagedRegister mbase, Offset offset, 7892c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 7902c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister base = mbase.AsArm(); 7912c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 792bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(base.IsCoreRegister()) << base; 793bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 794b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 795b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers base.AsCoreRegister(), offset.Int32Value()); 796b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers blx(scratch.AsCoreRegister()); 79765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // TODO: place reference map on call. 798b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 799b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 8002c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::Call(FrameOffset base, Offset offset, 8012c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ManagedRegister mscratch) { 8022c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 803bf2739d3b58ee5b2f190007499f1fbfd0b3441ceElliott Hughes CHECK(scratch.IsCoreRegister()) << scratch; 804e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro // Call *(*(SP + base) + offset) 805e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 806e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro SP, base.Int32Value()); 807e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 808e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro scratch.AsCoreRegister(), offset.Int32Value()); 809e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro blx(scratch.AsCoreRegister()); 810e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro // TODO: place reference map on call 811e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro} 812e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro 813dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmAssembler::CallFromThread32(ThreadOffset<4> /*offset*/, ManagedRegister /*scratch*/) { 814bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers UNIMPLEMENTED(FATAL); 815bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 816bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 8172c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::GetCurrentThread(ManagedRegister tr) { 8182c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers mov(tr.AsArm().AsCoreRegister(), ShifterOperand(TR)); 819668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao} 820668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao 8212c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmAssembler::GetCurrentThread(FrameOffset offset, 8221bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes ManagedRegister /*scratch*/) { 823668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao StoreToOffset(kStoreWord, TR, SP, offset.Int32Value(), AL); 824668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao} 825668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao 82600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid ArmAssembler::ExceptionPoll(ManagedRegister mscratch, size_t stack_adjust) { 8272c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmManagedRegister scratch = mscratch.AsArm(); 82800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ArmExceptionSlowPath* slow = new ArmExceptionSlowPath(scratch, stack_adjust); 829e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro buffer_.EnqueueSlowPath(slow); 830e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro LoadFromOffset(kLoadWord, scratch.AsCoreRegister(), 831dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers TR, Thread::ExceptionOffset<4>().Int32Value()); 832e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro cmp(scratch.AsCoreRegister(), ShifterOperand(0)); 833e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro b(slow->Entry(), NE); 834e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro} 835e2d373e6e09c1df9a47e73a26254048adb31ce82Carl Shapiro 8362c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogersvoid ArmExceptionSlowPath::Emit(Assembler* sasm) { 8372c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers ArmAssembler* sp_asm = down_cast<ArmAssembler*>(sasm); 8382c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers#define __ sp_asm-> 8392c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers __ Bind(&entry_); 84000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (stack_adjust_ != 0) { // Fix up the frame. 84100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers __ DecreaseFrameSize(stack_adjust_); 84200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 84365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Pass exception object as argument. 84465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Don't care about preserving R0 as this call won't return. 84567375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers __ mov(R0, ShifterOperand(scratch_.AsCoreRegister())); 84665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Set up call to Thread::Current()->pDeliverException. 847dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers __ LoadFromOffset(kLoadWord, R12, TR, QUICK_ENTRYPOINT_OFFSET(4, pDeliverException).Int32Value()); 8482c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers __ blx(R12); 84965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison // Call never returns. 85067375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers __ bkpt(0); 8512c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers#undef __ 85245a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers} 85345a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 85465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 85565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonstatic int LeadingZeros(uint32_t val) { 85665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t alt; 85765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison int32_t n; 85865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison int32_t count; 85965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 86065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison count = 16; 86165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison n = 32; 86265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison do { 86365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison alt = val >> count; 86465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (alt != 0) { 86565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison n = n - count; 86665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison val = alt; 86765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } 86865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison count >>= 1; 86965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison } while (count); 87065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return n - val; 87165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison} 87265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 87365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 87465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allisonuint32_t ArmAssembler::ModifiedImmediate(uint32_t value) { 87565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison int32_t z_leading; 87665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison int32_t z_trailing; 87765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t b0 = value & 0xff; 87865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 87965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* Note: case of value==0 must use 0:000:0:0000000 encoding */ 88065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (value <= 0xFF) 88165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return b0; // 0:000:a:bcdefgh. 88265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (value == ((b0 << 16) | b0)) 88365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return (0x1 << 12) | b0; /* 0:001:a:bcdefgh */ 88465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (value == ((b0 << 24) | (b0 << 16) | (b0 << 8) | b0)) 88565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return (0x3 << 12) | b0; /* 0:011:a:bcdefgh */ 88665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison b0 = (value >> 8) & 0xff; 88765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if (value == ((b0 << 24) | (b0 << 8))) 88865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return (0x2 << 12) | b0; /* 0:010:a:bcdefgh */ 88965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* Can we do it with rotation? */ 89065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison z_leading = LeadingZeros(value); 89165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison z_trailing = 32 - LeadingZeros(~value & (value - 1)); 89265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* A run of eight or fewer active bits? */ 89365fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison if ((z_leading + z_trailing) < 24) 89465fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return kInvalidModifiedImmediate; /* No - bail */ 89565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* left-justify the constant, discarding msb (known to be 1) */ 89665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison value <<= z_leading + 1; 89765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* Create bcdefgh */ 89865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison value >>= 25; 89965fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 90065fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison /* Put it all together */ 90165fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t v = 8 + z_leading; 90265fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 903c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe uint32_t i = (v & 16U /* 0b10000 */) >> 4; 904c8ccf68b805c92674545f63e0341ba47e8d9701cAndreas Gampe uint32_t imm3 = (v >> 1) & 7U /* 0b111 */; 90565fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison uint32_t a = v & 1; 90665fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison return value | i << 26 | imm3 << 12 | a << 7; 90765fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison} 90865fcc2cf3c5cd97b84330c094908f3a6a7a8d4e7Dave Allison 9092c8f653c98d658419f464b6147c10e11a664d2e6Ian Rogers} // namespace arm 9106b6b5f0e67ce03f38223a525612955663bc1799bCarl Shapiro} // namespace art 911