int_arm.cc revision d8c3e3608a7b47e82186e4f8118541ef06d9eab2
1efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 2efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Copyright (C) 2011 The Android Open Source Project 3efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * 4efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Licensed under the Apache License, Version 2.0 (the "License"); 5efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * you may not use this file except in compliance with the License. 6efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * You may obtain a copy of the License at 7efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * 8efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * http://www.apache.org/licenses/LICENSE-2.0 9efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * 10efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Unless required by applicable law or agreed to in writing, software 11efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * distributed under the License is distributed on an "AS IS" BASIS, 12efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * See the License for the specific language governing permissions and 14efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * limitations under the License. 15efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 16efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 17efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* This file contains codegen for the Thumb2 ISA. */ 18efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 191bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee#include "arm_lir.h" 2002031b185b4653e6c72e21f7a51238b903f6d638buzbee#include "codegen_arm.h" 217940e44f4517de5e2634a7e07d58d0fb26160513Brian Carlstrom#include "dex/quick/mir_to_lir-inl.h" 22b5860fb459f1ed71f39d8a87b45bee6727d79fe8buzbee#include "dex/reg_storage_eq.h" 23166db04e259ca51838c311891598664deeed85adIan Rogers#include "entrypoints/quick/quick_entrypoints.h" 247e70b002c4552347ed1af8c002a0e13f08864f20Ian Rogers#include "mirror/array-inl.h" 25efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 26efc6369224b036a1fb77849f7ae65b3492c832c0buzbeenamespace art { 27efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpCmpBranch(ConditionCode cond, RegStorage src1, RegStorage src2, LIR* target) { 291fd3346740dfb7f47be9922312b68a4227fada96buzbee OpRegReg(kOpCmp, src1, src2); 301fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpCondBranch(cond, target); 31efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 32efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 33efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 34efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Generate a Thumb2 IT instruction, which can nullify up to 35efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * four subsequent instructions based on a condition and its 36efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * inverse. The condition applies to the first instruction, which 37efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * is executed if the condition is met. The string "guide" consists 38efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * of 0 to 3 chars, and applies to the 2nd through 4th instruction. 39efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * A "T" means the instruction is executed if the condition is 40efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * met, and an "E" means the instruction is executed if the condition 41efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * is not met. 42efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 432ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* ArmMir2Lir::OpIT(ConditionCode ccode, const char* guide) { 44efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask; 45efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask3 = 0; 46efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask2 = 0; 47efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask1 = 0; 4802031b185b4653e6c72e21f7a51238b903f6d638buzbee ArmConditionCode code = ArmConditionEncoding(ccode); 4902031b185b4653e6c72e21f7a51238b903f6d638buzbee int cond_bit = code & 1; 5002031b185b4653e6c72e21f7a51238b903f6d638buzbee int alt_bit = cond_bit ^ 1; 51efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 527934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // Note: case fallthroughs intentional 53efc6369224b036a1fb77849f7ae65b3492c832c0buzbee switch (strlen(guide)) { 54efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 3: 55fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mask1 = (guide[2] == 'T') ? cond_bit : alt_bit; 56efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 2: 57fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mask2 = (guide[1] == 'T') ? cond_bit : alt_bit; 58efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 1: 59fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mask3 = (guide[0] == 'T') ? cond_bit : alt_bit; 60efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 61efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 0: 62efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 63efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 6452a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "OAT: bad case in OpIT"; 65efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 66efc6369224b036a1fb77849f7ae65b3492c832c0buzbee mask = (mask3 << 3) | (mask2 << 2) | (mask1 << 1) | 67efc6369224b036a1fb77849f7ae65b3492c832c0buzbee (1 << (3 - strlen(guide))); 681fd3346740dfb7f47be9922312b68a4227fada96buzbee return NewLIR2(kThumb2It, code, mask); 69efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 70efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 71b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampevoid ArmMir2Lir::UpdateIT(LIR* it, const char* new_guide) { 72b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int mask; 73b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int mask3 = 0; 74b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int mask2 = 0; 75b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int mask1 = 0; 76b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe ArmConditionCode code = static_cast<ArmConditionCode>(it->operands[0]); 77b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int cond_bit = code & 1; 78b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int alt_bit = cond_bit ^ 1; 79b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe 80b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe // Note: case fallthroughs intentional 81b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe switch (strlen(new_guide)) { 82b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe case 3: 83b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe mask1 = (new_guide[2] == 'T') ? cond_bit : alt_bit; 84b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe case 2: 85b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe mask2 = (new_guide[1] == 'T') ? cond_bit : alt_bit; 86b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe case 1: 87b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe mask3 = (new_guide[0] == 'T') ? cond_bit : alt_bit; 88b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe break; 89b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe case 0: 90b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe break; 91b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe default: 92b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe LOG(FATAL) << "OAT: bad case in UpdateIT"; 93b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe } 94b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe mask = (mask3 << 3) | (mask2 << 2) | (mask1 << 1) | 95b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe (1 << (3 - strlen(new_guide))); 96b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe it->operands[1] = mask; 97b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe} 98b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe 993da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allisonvoid ArmMir2Lir::OpEndIT(LIR* it) { 1003da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison // TODO: use the 'it' pointer to do some checks with the LIR, for example 1013da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison // we could check that the number of instructions matches the mask 1023da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison // in the IT instruction. 1033da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison CHECK(it != nullptr); 1043da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison GenBarrier(); 1053da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison} 1063da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison 107efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 108efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * 64-bit 3way compare function. 109efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov rX, #-1 110efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * cmp op1hi, op2hi 111efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * blt done 112efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * bgt flip 113efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * sub rX, op1lo, op2lo (treat as unsigned) 114efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * beq done 115efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * ite hi 116efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov(hi) rX, #-1 117efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov(!hi) rX, #1 118efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * flip: 119efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * neg rX 120efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * done: 121efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 122a1983d4dab10b0cc51e9d1b6bcafa9a723fabcd9buzbeevoid ArmMir2Lir::GenCmpLong(RegLocation rl_dest, RegLocation rl_src1, RegLocation rl_src2) { 123efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* target1; 124efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* target2; 1251fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 1261fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValueWide(rl_src2, kCoreReg); 1272700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 1281fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg, -1); 1292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetHigh(), rl_src2.reg.GetHigh()); 1301fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch1 = OpCondBranch(kCondLt, NULL); 1311fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch2 = OpCondBranch(kCondGt, NULL); 132a1983d4dab10b0cc51e9d1b6bcafa9a723fabcd9buzbee OpRegRegReg(kOpSub, t_reg, rl_src1.reg.GetLow(), rl_src2.reg.GetLow()); 1331fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch3 = OpCondBranch(kCondEq, NULL); 1341fd3346740dfb7f47be9922312b68a4227fada96buzbee 1353da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(kCondHi, "E"); 1362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR2(kThumb2MovI8M, t_reg.GetReg(), ModifiedImmediate(-1)); 1371fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg, 1); 1383da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); 1391fd3346740dfb7f47be9922312b68a4227fada96buzbee 1401fd3346740dfb7f47be9922312b68a4227fada96buzbee target2 = NewLIR0(kPseudoTargetLabel); 1411fd3346740dfb7f47be9922312b68a4227fada96buzbee OpRegReg(kOpNeg, t_reg, t_reg); 1421fd3346740dfb7f47be9922312b68a4227fada96buzbee 1431fd3346740dfb7f47be9922312b68a4227fada96buzbee target1 = NewLIR0(kPseudoTargetLabel); 144fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee 1457934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom RegLocation rl_temp = LocCReturn(); // Just using as template, will change 1462700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_temp.reg.SetReg(t_reg.GetReg()); 1471fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_temp); 1481fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 149efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 150cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee branch1->target = target1; 151cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee branch2->target = target2; 152efc6369224b036a1fb77849f7ae65b3492c832c0buzbee branch3->target = branch1->target; 153efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 154efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1551fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenFusedLongCmpImmBranch(BasicBlock* bb, RegLocation rl_src1, 1562ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom int64_t val, ConditionCode ccode) { 1574ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t val_lo = Low32Bits(val); 1584ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t val_hi = High32Bits(val); 1594274889d48ef82369bf2c1ca70d84689b4f9e93aBrian Carlstrom DCHECK_GE(ModifiedImmediate(val_lo), 0); 1604274889d48ef82369bf2c1ca70d84689b4f9e93aBrian Carlstrom DCHECK_GE(ModifiedImmediate(val_hi), 0); 1610d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* taken = &block_label_list_[bb->taken]; 1620d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* not_taken = &block_label_list_[bb->fall_through]; 1631fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 1642700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage low_reg = rl_src1.reg.GetLow(); 1652700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage high_reg = rl_src1.reg.GetHigh(); 1664ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 16758af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko if (val == 0 && (ccode == kCondEq || ccode == kCondNe)) { 1682700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 1692700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, t_reg.GetReg(), low_reg.GetReg(), high_reg.GetReg(), 0); 17058af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko FreeTemp(t_reg); 17158af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko OpCondBranch(ccode, taken); 17258af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko return; 17358af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko } 17458af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko 175df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (ccode) { 1764ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondEq: 1774ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondNe: 17858af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko OpCmpImmBranch(kCondNe, high_reg, val_hi, (ccode == kCondEq) ? not_taken : taken); 1794ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1804ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondLt: 1811fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, taken); 1821fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, not_taken); 18358af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUlt; 1844ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1854ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondLe: 1861fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, taken); 1871fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, not_taken); 1884ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = kCondLs; 1894ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1904ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondGt: 1911fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, taken); 1921fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, not_taken); 1934ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = kCondHi; 1944ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1954ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondGe: 1961fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, taken); 1971fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, not_taken); 19858af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUge; 1994ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 2004ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 2014ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected ccode: " << ccode; 2024ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 2031fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(ccode, low_reg, val_lo, taken); 2044ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 2054ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 20690969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampevoid ArmMir2Lir::GenSelectConst32(RegStorage left_op, RegStorage right_op, ConditionCode code, 20790969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe int32_t true_val, int32_t false_val, RegStorage rs_dest, 20890969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe int dest_reg_class) { 20990969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe // TODO: Generalize the IT below to accept more than one-instruction loads. 21090969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe DCHECK(InexpensiveConstantInt(true_val)); 21190969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe DCHECK(InexpensiveConstantInt(false_val)); 21290969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe 21390969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe if ((true_val == 0 && code == kCondEq) || 21490969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe (false_val == 0 && code == kCondNe)) { 21590969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe OpRegRegReg(kOpSub, rs_dest, left_op, right_op); 21690969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 21790969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe LIR* it = OpIT(kCondNe, ""); 21890969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe LoadConstant(rs_dest, code == kCondEq ? false_val : true_val); 21990969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe OpEndIT(it); 22090969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe return; 22190969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe } 22290969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe 22390969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe OpRegReg(kOpCmp, left_op, right_op); // Same? 22490969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe LIR* it = OpIT(code, "E"); // if-convert the test 22590969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe LoadConstant(rs_dest, true_val); // .eq case - load true 22690969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe LoadConstant(rs_dest, false_val); // .eq case - load true 22790969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe OpEndIT(it); 22890969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe} 22990969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe 2302ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenSelect(BasicBlock* bb, MIR* mir) { 231f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee RegLocation rl_result; 2321fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src = mir_graph_->GetSrc(mir, 0); 2331fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = mir_graph_->GetDest(mir); 234a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee // Avoid using float regs here. 235a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegisterClass src_reg_class = rl_src.ref ? kRefReg : kCoreReg; 236a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegisterClass result_reg_class = rl_dest.ref ? kRefReg : kCoreReg; 237a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_src = LoadValue(rl_src, src_reg_class); 238a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko ConditionCode ccode = mir->meta.ccode; 239f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee if (mir->ssa_rep->num_uses == 1) { 240f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // CONST case 241f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee int true_val = mir->dalvikInsn.vB; 242f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee int false_val = mir->dalvikInsn.vC; 243a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_result = EvalLoc(rl_dest, result_reg_class, true); 244a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko // Change kCondNe to kCondEq for the special cases below. 245a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko if (ccode == kCondNe) { 246a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko ccode = kCondEq; 247a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko std::swap(true_val, false_val); 248a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } 249a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko bool cheap_false_val = InexpensiveConstantInt(false_val); 250a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko if (cheap_false_val && ccode == kCondEq && (true_val == 0 || true_val == -1)) { 2512700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpSub, rl_result.reg, rl_src.reg, -true_val); 2528dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 2533da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(true_val == 0 ? kCondNe : kCondUge, ""); 2542700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 2553da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 256a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } else if (cheap_false_val && ccode == kCondEq && true_val == 1) { 2572700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpRsub, rl_result.reg, rl_src.reg, 1); 2588dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 2593da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(kCondLs, ""); 2602700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 2613da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 262a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } else if (cheap_false_val && InexpensiveConstantInt(true_val)) { 2632700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 2643da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(ccode, "E"); 2652700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, true_val); 2662700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 2673da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 268f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } else { 269f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // Unlikely case - could be tuned. 270a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegStorage t_reg1 = AllocTypedTemp(false, result_reg_class); 271a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegStorage t_reg2 = AllocTypedTemp(false, result_reg_class); 2721fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg1, true_val); 2731fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg2, false_val); 2742700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 2753da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(ccode, "E"); 2762700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, t_reg1); 2772700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, t_reg2); 2783da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 279f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } 280f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } else { 281f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // MOVE case 2821fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_true = mir_graph_->reg_location_[mir->ssa_rep->uses[1]]; 2831fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_false = mir_graph_->reg_location_[mir->ssa_rep->uses[2]]; 284a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_true = LoadValue(rl_true, result_reg_class); 285a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_false = LoadValue(rl_false, result_reg_class); 286a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_result = EvalLoc(rl_dest, result_reg_class, true); 2872700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 2883da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = nullptr; 28900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (rl_result.reg.GetReg() == rl_true.reg.GetReg()) { // Is the "true" case already in place? 2903da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(NegateComparison(ccode), ""); 2912700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_false.reg); 29200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee } else if (rl_result.reg.GetReg() == rl_false.reg.GetReg()) { // False case in place? 2933da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(ccode, ""); 2942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_true.reg); 295252254b130067cd7a5071865e793966871ae0246buzbee } else { // Normal - select between the two. 2963da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(ccode, "E"); 2972700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_true.reg); 2982700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_false.reg); 299252254b130067cd7a5071865e793966871ae0246buzbee } 3003da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 301f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } 3021fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 303f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee} 3044ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 3052ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenFusedLongCmpBranch(BasicBlock* bb, MIR* mir) { 3061fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src1 = mir_graph_->GetSrcWide(mir, 0); 3071fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src2 = mir_graph_->GetSrcWide(mir, 2); 3084ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Normalize such that if either operand is constant, src2 will be constant. 309a894607bca7eb623bc957363e4b36f44cfeea1b6Vladimir Marko ConditionCode ccode = mir->meta.ccode; 3104ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src1.is_const) { 31158af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko std::swap(rl_src1, rl_src2); 3124ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = FlipComparisonOrder(ccode); 3134ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 3144ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src2.is_const) { 315082833c8d577db0b2bebc100602f31e4e971613ebuzbee rl_src2 = UpdateLocWide(rl_src2); 3164ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Do special compare/branch against simple const operand if not already in registers. 3171fd3346740dfb7f47be9922312b68a4227fada96buzbee int64_t val = mir_graph_->ConstantValueWide(rl_src2); 318082833c8d577db0b2bebc100602f31e4e971613ebuzbee if ((rl_src2.location != kLocPhysReg) && 3194ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ((ModifiedImmediate(Low32Bits(val)) >= 0) && (ModifiedImmediate(High32Bits(val)) >= 0))) { 3201fd3346740dfb7f47be9922312b68a4227fada96buzbee GenFusedLongCmpImmBranch(bb, rl_src1, val, ccode); 3214ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return; 3224ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 3234ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 3240d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* taken = &block_label_list_[bb->taken]; 3250d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* not_taken = &block_label_list_[bb->fall_through]; 3261fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 3271fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValueWide(rl_src2, kCoreReg); 3282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetHigh(), rl_src2.reg.GetHigh()); 329df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (ccode) { 330efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondEq: 3311fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondNe, not_taken); 332efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 333efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondNe: 3341fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondNe, taken); 335efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 336efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondLt: 3371fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, taken); 3381fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, not_taken); 33958af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUlt; 340efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 341efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondLe: 3421fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, taken); 3431fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, not_taken); 344efc6369224b036a1fb77849f7ae65b3492c832c0buzbee ccode = kCondLs; 345efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 346efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondGt: 3471fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, taken); 3481fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, not_taken); 349efc6369224b036a1fb77849f7ae65b3492c832c0buzbee ccode = kCondHi; 350efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 351efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondGe: 3521fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, taken); 3531fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, not_taken); 35458af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUge; 355efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 356efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 357cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Unexpected ccode: " << ccode; 358efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 3592700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetLow(), rl_src2.reg.GetLow()); 3601fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(ccode, taken); 361efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 362efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 363efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 364efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Generate a register comparison to an immediate and branch. Caller 365efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * is responsible for setting branch target field. 366efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 3672700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpCmpImmBranch(ConditionCode cond, RegStorage reg, int check_value, LIR* target) { 3689522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe LIR* branch = nullptr; 369fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee ArmConditionCode arm_cond = ArmConditionEncoding(cond); 370b48819db07f9a0992a72173380c24249d7fc648abuzbee /* 371b48819db07f9a0992a72173380c24249d7fc648abuzbee * A common use of OpCmpImmBranch is for null checks, and using the Thumb 16-bit 372b48819db07f9a0992a72173380c24249d7fc648abuzbee * compare-and-branch if zero is ideal if it will reach. However, because null checks 3733a74d15ccc9a902874473ac9632e568b19b91b1cMingyao Yang * branch forward to a slow path, they will frequently not reach - and thus have to 374b48819db07f9a0992a72173380c24249d7fc648abuzbee * be converted to a long form during assembly (which will trigger another assembly 375b48819db07f9a0992a72173380c24249d7fc648abuzbee * pass). Here we estimate the branch distance for checks, and if large directly 376b48819db07f9a0992a72173380c24249d7fc648abuzbee * generate the long form in an attempt to avoid an extra assembly pass. 3773a74d15ccc9a902874473ac9632e568b19b91b1cMingyao Yang * TODO: consider interspersing slowpaths in code following unconditional branches. 378b48819db07f9a0992a72173380c24249d7fc648abuzbee */ 379b48819db07f9a0992a72173380c24249d7fc648abuzbee bool skip = ((target != NULL) && (target->opcode == kPseudoThrowTarget)); 380750359753444498d509a756fa9a042e9f3c432dfRazvan A Lupusoru skip &= ((mir_graph_->GetNumDalvikInsns() - current_dalvik_offset_) > 64); 3819522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe if (!skip && reg.Low8() && (check_value == 0)) { 3829522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe if (arm_cond == kArmCondEq || arm_cond == kArmCondNe) { 3839522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe branch = NewLIR2((arm_cond == kArmCondEq) ? kThumb2Cbz : kThumb2Cbnz, 3849522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe reg.GetReg(), 0); 3859522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe } else if (arm_cond == kArmCondLs) { 3869522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe // kArmCondLs is an unsigned less or equal. A comparison r <= 0 is then the same as cbz. 3879522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe // This case happens for a bounds check of array[0]. 3889522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe branch = NewLIR2(kThumb2Cbz, reg.GetReg(), 0); 3899522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe } 3909522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe } 3919522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe 3929522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe if (branch == nullptr) { 3932247984899247b1402408d39731ff64048f0e274Vladimir Marko OpRegImm(kOpCmp, reg, check_value); 3941fd3346740dfb7f47be9922312b68a4227fada96buzbee branch = NewLIR2(kThumbBCond, 0, arm_cond); 395efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 3969522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe 397efc6369224b036a1fb77849f7ae65b3492c832c0buzbee branch->target = target; 398efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return branch; 399efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 40002031b185b4653e6c72e21f7a51238b903f6d638buzbee 4012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpRegCopyNoInsert(RegStorage r_dest, RegStorage r_src) { 402efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* res; 403efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int opcode; 4042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee // If src or dest is a pair, we'll be using low reg. 4052700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (r_dest.IsPair()) { 4062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_dest = r_dest.GetLow(); 4072700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee } 4082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (r_src.IsPair()) { 4092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_src = r_src.GetLow(); 4102700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee } 411091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.IsFloat() || r_src.IsFloat()) 4121fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpFpRegCopy(r_dest, r_src); 413091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.Low8() && r_src.Low8()) 414efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR; 415091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee else if (!r_dest.Low8() && !r_src.Low8()) 416efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_H2H; 417091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee else if (r_dest.Low8()) 418efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_H2L; 419efc6369224b036a1fb77849f7ae65b3492c832c0buzbee else 420efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_L2H; 4212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = RawLIR(current_dalvik_offset_, opcode, r_dest.GetReg(), r_src.GetReg()); 4221fd3346740dfb7f47be9922312b68a4227fada96buzbee if (!(cu_->disable_opt & (1 << kSafeOptimizations)) && r_dest == r_src) { 423fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee res->flags.is_nop = true; 424efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 425efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return res; 426efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 427efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4287a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbeevoid ArmMir2Lir::OpRegCopy(RegStorage r_dest, RegStorage r_src) { 4297a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (r_dest != r_src) { 4307a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee LIR* res = OpRegCopyNoInsert(r_dest, r_src); 4317a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee AppendLIR(res); 4327a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee } 433efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 434efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeevoid ArmMir2Lir::OpRegCopyWide(RegStorage r_dest, RegStorage r_src) { 4367a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (r_dest != r_src) { 437091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool dest_fp = r_dest.IsFloat(); 438091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool src_fp = r_src.IsFloat(); 439091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(r_dest.Is64Bit()); 440091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(r_src.Is64Bit()); 4417a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (dest_fp) { 4427a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (src_fp) { 443091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee OpRegCopy(r_dest, r_src); 4447a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee } else { 445091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee NewLIR3(kThumb2Fmdrr, r_dest.GetReg(), r_src.GetLowReg(), r_src.GetHighReg()); 4467a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee } 447efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 4487a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (src_fp) { 449091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee NewLIR3(kThumb2Fmrrd, r_dest.GetLowReg(), r_dest.GetHighReg(), r_src.GetReg()); 450efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 4517a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee // Handle overlap 4527a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (r_src.GetHighReg() == r_dest.GetLowReg()) { 4537a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee DCHECK_NE(r_src.GetLowReg(), r_dest.GetHighReg()); 4547a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee OpRegCopy(r_dest.GetHigh(), r_src.GetHigh()); 4557a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee OpRegCopy(r_dest.GetLow(), r_src.GetLow()); 4567a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee } else { 4577a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee OpRegCopy(r_dest.GetLow(), r_src.GetLow()); 4587a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee OpRegCopy(r_dest.GetHigh(), r_src.GetHigh()); 4597a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee } 460efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 461efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 462efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 463efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 464efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 465efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Table of magic divisors 466efc6369224b036a1fb77849f7ae65b3492c832c0buzbeestruct MagicTable { 467efc6369224b036a1fb77849f7ae65b3492c832c0buzbee uint32_t magic; 468efc6369224b036a1fb77849f7ae65b3492c832c0buzbee uint32_t shift; 469efc6369224b036a1fb77849f7ae65b3492c832c0buzbee DividePattern pattern; 470efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 471efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 472fa57c47f1b72916371a9c2d5c1389219bce655b4buzbeestatic const MagicTable magic_table[] = { 473efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 0 474efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 1 475efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 2 476efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x55555556, 0, Divide3}, // 3 477efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 4 478efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x66666667, 1, Divide5}, // 5 479efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2AAAAAAB, 0, Divide3}, // 6 480efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x92492493, 2, Divide7}, // 7 481efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 8 482efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x38E38E39, 1, Divide5}, // 9 483efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x66666667, 2, Divide5}, // 10 484efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2E8BA2E9, 1, Divide5}, // 11 485efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2AAAAAAB, 1, Divide5}, // 12 486efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x4EC4EC4F, 2, Divide5}, // 13 487efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x92492493, 3, Divide7}, // 14 488efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x88888889, 3, Divide7}, // 15 489efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 490efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 491efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Integer division by constant via reciprocal multiply (Hacker's Delight, 10-4) 49211b63d13f0a3be0f74390b66b58614a37f9aa6c1buzbeebool ArmMir2Lir::SmallLiteralDivRem(Instruction::Code dalvik_opcode, bool is_div, 4932ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src, RegLocation rl_dest, int lit) { 494fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if ((lit < 0) || (lit >= static_cast<int>(sizeof(magic_table)/sizeof(magic_table[0])))) { 495efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return false; 496efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 497fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee DividePattern pattern = magic_table[lit].pattern; 498efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (pattern == DivideNone) { 499efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return false; 500efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 501efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 5022700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_magic = AllocTemp(); 5031fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(r_magic, magic_table[lit].magic); 5041fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, kCoreReg); 5051fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 5062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_hi = AllocTemp(); 5072700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_lo = AllocTemp(); 508f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 509f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // rl_dest and rl_src might overlap. 510f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // Reuse r_hi to save the div result for reminder case. 511f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu RegStorage r_div_result = is_div ? rl_result.reg : r_hi; 512f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 5132700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Smull, r_lo.GetReg(), r_hi.GetReg(), r_magic.GetReg(), rl_src.reg.GetReg()); 514df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (pattern) { 515efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide3: 516f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpSub, r_div_result, r_hi, rl_src.reg, EncodeShift(kArmAsr, 31)); 517efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 518efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide5: 5192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, r_lo, rl_src.reg, 31); 520f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpRsub, r_div_result, r_lo, r_hi, 521e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers EncodeShift(kArmAsr, magic_table[lit].shift)); 522efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 523efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide7: 5242700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpAdd, r_hi, rl_src.reg); 5252700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, r_lo, rl_src.reg, 31); 526f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpRsub, r_div_result, r_lo, r_hi, 527e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers EncodeShift(kArmAsr, magic_table[lit].shift)); 528efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 529efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 530cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Unexpected pattern: " << pattern; 531efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 532f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 533f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu if (!is_div) { 534f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // div_result = src / lit 535f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // tmp1 = div_result * lit 536f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // dest = src - tmp1 537f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu RegStorage tmp1 = r_lo; 538f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu EasyMultiplyOp ops[2]; 539f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 540f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu bool canEasyMultiply = GetEasyMultiplyTwoOps(lit, ops); 541f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu DCHECK_NE(canEasyMultiply, false); 542f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 543f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu GenEasyMultiplyTwoOps(tmp1, r_div_result, ops); 544f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegReg(kOpSub, rl_result.reg, rl_src.reg, tmp1); 545f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu } 546f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 5471fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 548efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 549efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 550efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 551e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers// Try to convert *lit to 1 RegRegRegShift/RegRegShift form. 552e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersbool ArmMir2Lir::GetEasyMultiplyOp(int lit, ArmMir2Lir::EasyMultiplyOp* op) { 553e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (IsPowerOfTwo(lit)) { 554e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpLsl; 555e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->shift = LowestSetBit(lit); 556e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 557e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 558e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 559e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (IsPowerOfTwo(lit - 1)) { 560e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpAdd; 561e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->shift = LowestSetBit(lit - 1); 562e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 563e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 564e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 565e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (IsPowerOfTwo(lit + 1)) { 566e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpRsub; 567e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->shift = LowestSetBit(lit + 1); 568e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 569e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 570e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 571e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpInvalid; 572f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu op->shift = 0; 573e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return false; 574e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 575e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 576e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers// Try to convert *lit to 1~2 RegRegRegShift/RegRegShift forms. 577e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersbool ArmMir2Lir::GetEasyMultiplyTwoOps(int lit, EasyMultiplyOp* ops) { 578e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers GetEasyMultiplyOp(lit, &ops[0]); 579e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit, &ops[0])) { 580e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpInvalid; 581f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu ops[1].shift = 0; 582e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 583e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 584e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 585e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers int lit1 = lit; 586e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers uint32_t shift = LowestSetBit(lit1); 587e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit1 >> shift, &ops[0])) { 588e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpLsl; 589e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].shift = shift; 590e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 591e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 592e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 593e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers lit1 = lit - 1; 594e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers shift = LowestSetBit(lit1); 595e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit1 >> shift, &ops[0])) { 596e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpAdd; 597e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].shift = shift; 598e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 599e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 600e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 601e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers lit1 = lit + 1; 602e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers shift = LowestSetBit(lit1); 603e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit1 >> shift, &ops[0])) { 604e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpRsub; 605e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].shift = shift; 606e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 607e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 608e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 609e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return false; 610e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 611e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 612f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu// Generate instructions to do multiply. 613f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu// Additional temporary register is required, 614f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu// if it need to generate 2 instructions and src/dest overlap. 615e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersvoid ArmMir2Lir::GenEasyMultiplyTwoOps(RegStorage r_dest, RegStorage r_src, EasyMultiplyOp* ops) { 616f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // tmp1 = ( src << shift1) + [ src | -src | 0 ] 617f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // dest = (tmp1 << shift2) + [ src | -src | 0 ] 618f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 619f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu RegStorage r_tmp1; 620f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu if (ops[1].op == kOpInvalid) { 621f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu r_tmp1 = r_dest; 622f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu } else if (r_dest.GetReg() != r_src.GetReg()) { 623f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu r_tmp1 = r_dest; 624f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu } else { 625f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu r_tmp1 = AllocTemp(); 626f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu } 627f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 628f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu switch (ops[0].op) { 629e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers case kOpLsl: 630f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegImm(kOpLsl, r_tmp1, r_src, ops[0].shift); 631e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 632e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers case kOpAdd: 633f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpAdd, r_tmp1, r_src, r_src, EncodeShift(kArmLsl, ops[0].shift)); 634e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 635e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers case kOpRsub: 636f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpRsub, r_tmp1, r_src, r_src, EncodeShift(kArmLsl, ops[0].shift)); 637e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 638e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers default: 639f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu DCHECK_EQ(ops[0].op, kOpInvalid); 640f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu break; 641f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu } 642f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 643f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu switch (ops[1].op) { 644f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu case kOpInvalid: 645f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu return; 646f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu case kOpLsl: 647f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegImm(kOpLsl, r_dest, r_tmp1, ops[1].shift); 648f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu break; 649f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu case kOpAdd: 650f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpAdd, r_dest, r_src, r_tmp1, EncodeShift(kArmLsl, ops[1].shift)); 651f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu break; 652f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu case kOpRsub: 653f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpRsub, r_dest, r_src, r_tmp1, EncodeShift(kArmLsl, ops[1].shift)); 654f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu break; 655f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu default: 656f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu LOG(FATAL) << "Unexpected opcode passed to GenEasyMultiplyTwoOps"; 657e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 658e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 659e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 660e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 661e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersbool ArmMir2Lir::EasyMultiply(RegLocation rl_src, RegLocation rl_dest, int lit) { 662e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers EasyMultiplyOp ops[2]; 663e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 664e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (!GetEasyMultiplyTwoOps(lit, ops)) { 665e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return false; 666e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 667e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 668e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers rl_src = LoadValue(rl_src, kCoreReg); 669e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 670e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 671e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers GenEasyMultiplyTwoOps(rl_result.reg, rl_src.reg, ops); 672e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers StoreValue(rl_dest, rl_result); 673e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 674e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 675e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 6762bf31e67694da24a19fc1f328285cebb1a4b9964Mark MendellRegLocation ArmMir2Lir::GenDivRem(RegLocation rl_dest, RegLocation rl_src1, 6772bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell RegLocation rl_src2, bool is_div, bool check_zero) { 6782bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell LOG(FATAL) << "Unexpected use of GenDivRem for Arm"; 6792bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell return rl_dest; 6802bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell} 6812bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell 6822bf31e67694da24a19fc1f328285cebb1a4b9964Mark MendellRegLocation ArmMir2Lir::GenDivRemLit(RegLocation rl_dest, RegLocation rl_src1, int lit, bool is_div) { 6832bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell LOG(FATAL) << "Unexpected use of GenDivRemLit for Arm"; 6842bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell return rl_dest; 6852bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell} 6862bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell 6872700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeRegLocation ArmMir2Lir::GenDivRemLit(RegLocation rl_dest, RegStorage reg1, int lit, bool is_div) { 6887020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 6897020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 6907020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Put the literal in a temp. 6912700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage lit_temp = AllocTemp(); 6927020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison LoadConstant(lit_temp, lit); 6937020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Use the generic case for div/rem with arg2 in a register. 6947020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // TODO: The literal temp can be freed earlier during a modulus to reduce reg pressure. 6957020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison rl_result = GenDivRem(rl_result, reg1, lit_temp, is_div); 6967020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison FreeTemp(lit_temp); 6977020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 6987020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison return rl_result; 699efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 700efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeRegLocation ArmMir2Lir::GenDivRem(RegLocation rl_dest, RegStorage reg1, RegStorage reg2, 7022ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom bool is_div) { 7037020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 7047020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison if (is_div) { 7057020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Simple case, use sdiv instruction. 7062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpDiv, rl_result.reg, reg1, reg2); 7077020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison } else { 7087020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Remainder case, use the following code: 7097020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // temp = reg1 / reg2 - integer division 7107020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // temp = temp * reg2 7117020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // dest = reg1 - temp 7127020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 7132700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage temp = AllocTemp(); 7147020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison OpRegRegReg(kOpDiv, temp, reg1, reg2); 7157020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison OpRegReg(kOpMul, temp, reg2); 7162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg, reg1, temp); 7177020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison FreeTemp(temp); 7187020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison } 7197020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 7207020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison return rl_result; 721efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 722efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 72323abec955e2e733999a1e2c30e4e384e46e5dde4Serban Constantinescubool ArmMir2Lir::GenInlinedMinMax(CallInfo* info, bool is_min, bool is_long) { 7241fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK_EQ(cu_->instruction_set, kThumb2); 72523abec955e2e733999a1e2c30e4e384e46e5dde4Serban Constantinescu if (is_long) { 72623abec955e2e733999a1e2c30e4e384e46e5dde4Serban Constantinescu return false; 72723abec955e2e733999a1e2c30e4e384e46e5dde4Serban Constantinescu } 728fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee RegLocation rl_src1 = info->args[0]; 729fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee RegLocation rl_src2 = info->args[1]; 7301fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValue(rl_src1, kCoreReg); 7311fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValue(rl_src2, kCoreReg); 7321fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = InlineTarget(info); 7331fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 7342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg, rl_src2.reg); 7353da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT((is_min) ? kCondGt : kCondLt, "E"); 7362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpMov, rl_result.reg, rl_src2.reg); 7372700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpMov, rl_result.reg, rl_src1.reg); 7383da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); 7391fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 740efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 741efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 742efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 743e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Markobool ArmMir2Lir::GenInlinedPeek(CallInfo* info, OpSize size) { 744e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_address = info->args[0]; // long address 7452700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_address = NarrowRegLoc(rl_src_address); // ignore high half in info->args[1] 746e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_dest = InlineTarget(info); 747e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_address = LoadValue(rl_src_address, kCoreReg); 748e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 749695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee if (size == k64) { 750e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Fake unaligned LDRD by two unaligned LDR instructions on ARMv7 with SCTLR.A set to 0. 7512700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (rl_address.reg.GetReg() != rl_result.reg.GetLowReg()) { 752695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_address.reg, 0, rl_result.reg.GetLow()); 753695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_address.reg, 4, rl_result.reg.GetHigh()); 754e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 755695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_address.reg, 4, rl_result.reg.GetHigh()); 756695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_address.reg, 0, rl_result.reg.GetLow()); 757e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 758e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko StoreValueWide(rl_dest, rl_result); 759e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 760695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee DCHECK(size == kSignedByte || size == kSignedHalf || size == k32); 761e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Unaligned load with LDR and LDRSH is allowed on ARMv7 with SCTLR.A set to 0. 7623c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe LoadBaseDisp(rl_address.reg, 0, rl_result.reg, size, kNotVolatile); 763e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko StoreValue(rl_dest, rl_result); 764e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 765e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko return true; 766e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko} 767e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko 768e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Markobool ArmMir2Lir::GenInlinedPoke(CallInfo* info, OpSize size) { 769e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_address = info->args[0]; // long address 7702700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_address = NarrowRegLoc(rl_src_address); // ignore high half in info->args[1] 771e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_value = info->args[2]; // [size] value 772e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_address = LoadValue(rl_src_address, kCoreReg); 773695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee if (size == k64) { 774e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Fake unaligned STRD by two unaligned STR instructions on ARMv7 with SCTLR.A set to 0. 775e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_value = LoadValueWide(rl_src_value, kCoreReg); 7763c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe StoreBaseDisp(rl_address.reg, 0, rl_value.reg.GetLow(), k32, kNotVolatile); 7773c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe StoreBaseDisp(rl_address.reg, 4, rl_value.reg.GetHigh(), k32, kNotVolatile); 778e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 779695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee DCHECK(size == kSignedByte || size == kSignedHalf || size == k32); 780e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Unaligned store with STR and STRSH is allowed on ARMv7 with SCTLR.A set to 0. 781e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_value = LoadValue(rl_src_value, kCoreReg); 7823c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe StoreBaseDisp(rl_address.reg, 0, rl_value.reg, size, kNotVolatile); 783e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 784e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko return true; 785e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko} 786e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko 78748f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm// Generate a CAS with memory_order_seq_cst semantics. 7881c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Markobool ArmMir2Lir::GenInlinedCas(CallInfo* info, bool is_long, bool is_object) { 7891fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK_EQ(cu_->instruction_set, kThumb2); 790fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee // Unused - RegLocation rl_src_unsafe = info->args[0]; 7911c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_obj = info->args[1]; // Object - known non-null 7921c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_offset = info->args[2]; // long low 7932700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_offset = NarrowRegLoc(rl_src_offset); // ignore high half in info->args[3] 7941c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_expected = info->args[4]; // int, long or Object 7953e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // If is_long, high half is in info->args[5] 7963e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_src_new_value = info->args[is_long ? 6 : 5]; // int, long or Object 7973e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // If is_long, high half is in info->args[7] 7981fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = InlineTarget(info); // boolean place for result 799efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8003e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // We have only 5 temporary registers available and actually only 4 if the InlineTarget 8013e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // above locked one of the temps. For a straightforward CAS64 we need 7 registers: 8023e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // r_ptr (1), new_value (2), expected(2) and ldrexd result (2). If neither expected nor 8033e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // new_value is in a non-temp core register we shall reload them in the ldrex/strex loop 8043e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // into the same temps, reducing the number of required temps down to 5. We shall work 8053e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // around the potentially locked temp by using LR for r_ptr, unconditionally. 8063e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // TODO: Pass information about the need for more temps to the stack frame generation 8073e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // code so that we can rely on being able to allocate enough temps. 808091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(!GetRegInfo(rs_rARM_LR)->IsTemp()); 809091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee MarkTemp(rs_rARM_LR); 810091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rs_rARM_LR); 811091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee LockTemp(rs_rARM_LR); 8123e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko bool load_early = true; 8133e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (is_long) { 814091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegStorage expected_reg = rl_src_expected.reg.IsPair() ? rl_src_expected.reg.GetLow() : 815091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee rl_src_expected.reg; 816091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegStorage new_val_reg = rl_src_new_value.reg.IsPair() ? rl_src_new_value.reg.GetLow() : 817091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee rl_src_new_value.reg; 818091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool expected_is_core_reg = rl_src_expected.location == kLocPhysReg && !expected_reg.IsFloat(); 819091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool new_value_is_core_reg = rl_src_new_value.location == kLocPhysReg && !new_val_reg.IsFloat(); 8202700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool expected_is_good_reg = expected_is_core_reg && !IsTemp(expected_reg); 8212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool new_value_is_good_reg = new_value_is_core_reg && !IsTemp(new_val_reg); 8223e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 8233e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!expected_is_good_reg && !new_value_is_good_reg) { 8243e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // None of expected/new_value is non-temp reg, need to load both late 8253e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko load_early = false; 8263e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Make sure they are not in the temp regs and the load will not be skipped. 8273e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (expected_is_core_reg) { 8282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FlushRegWide(rl_src_expected.reg); 8293e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(rl_src_expected.s_reg_low); 8303e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(GetSRegHi(rl_src_expected.s_reg_low)); 8313e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_src_expected.location = kLocDalvikFrame; 8323e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8333e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (new_value_is_core_reg) { 8342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FlushRegWide(rl_src_new_value.reg); 8353e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(rl_src_new_value.s_reg_low); 8363e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(GetSRegHi(rl_src_new_value.s_reg_low)); 8373e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_src_new_value.location = kLocDalvikFrame; 8383e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8393e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8403e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 841efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 84248f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm // Prevent reordering with prior memory operations. 84348f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm GenMemBarrier(kAnyStore); 844efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 845a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegLocation rl_object = LoadValue(rl_src_obj, kRefReg); 8463e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_new_value; 8473e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!is_long) { 8487c02e918e752ab36f0b6cab7528f10c0cf55a4eebuzbee rl_new_value = LoadValue(rl_src_new_value, LocToRegClass(rl_src_new_value)); 8493e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else if (load_early) { 8503e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_new_value = LoadValueWide(rl_src_new_value, kCoreReg); 8513e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 852efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8531c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko if (is_object && !mir_graph_->IsConstantNullRef(rl_new_value)) { 854efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Mark card for object assuming new value is stored. 8552700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee MarkGCCard(rl_new_value.reg, rl_object.reg); 856efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 857efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8581fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_offset = LoadValue(rl_src_offset, kCoreReg); 859efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8602700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_ptr = rs_rARM_LR; 8612700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdd, r_ptr, rl_object.reg, rl_offset.reg); 862efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 863fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee // Free now unneeded rl_object and rl_offset to give more temps. 8641fd3346740dfb7f47be9922312b68a4227fada96buzbee ClobberSReg(rl_object.s_reg_low); 865091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rl_object.reg); 8661fd3346740dfb7f47be9922312b68a4227fada96buzbee ClobberSReg(rl_offset.s_reg_low); 867091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rl_offset.reg); 868efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8693e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_expected; 8703e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!is_long) { 8717c02e918e752ab36f0b6cab7528f10c0cf55a4eebuzbee rl_expected = LoadValue(rl_src_expected, LocToRegClass(rl_src_new_value)); 8723e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else if (load_early) { 8733e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_expected = LoadValueWide(rl_src_expected, kCoreReg); 8743e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 87500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee // NOTE: partially defined rl_expected & rl_new_value - but we just want the regs. 876091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegStorage low_reg = AllocTemp(); 877091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegStorage high_reg = AllocTemp(); 878091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee rl_new_value.reg = RegStorage::MakeRegPair(low_reg, high_reg); 87900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee rl_expected = rl_new_value; 8803e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8813e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 8823e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // do { 8833e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // tmp = [r_ptr] - expected; 8843e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // } while (tmp == 0 && failure([r_ptr] <- r_new_value)); 8853e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // result = tmp != 0; 886efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8872700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_tmp = AllocTemp(); 8882de2aa1a96dfa5bebc004f29b5dbfafd37039ceeJeff Hao LIR* target = NewLIR0(kPseudoTargetLabel); 8893e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 8903da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = nullptr; 8913e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (is_long) { 8922700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_tmp_high = AllocTemp(); 8933e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 8942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadValueDirectWide(rl_src_expected, rl_expected.reg); 8953e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8962700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Ldrexd, r_tmp.GetReg(), r_tmp_high.GetReg(), r_ptr.GetReg()); 8972700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp, rl_expected.reg.GetLow()); 8982700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp_high, rl_expected.reg.GetHigh()); 8993e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 9002700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadValueDirectWide(rl_src_new_value, rl_new_value.reg); 9013e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 9023e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Make sure we use ORR that sets the ccode 903091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_tmp.Low8() && r_tmp_high.Low8()) { 9042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR2(kThumbOrr, r_tmp.GetReg(), r_tmp_high.GetReg()); 9053e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 9062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, r_tmp.GetReg(), r_tmp.GetReg(), r_tmp_high.GetReg(), 0); 9073e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 9083e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko FreeTemp(r_tmp_high); // Now unneeded 9093e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 9108dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 9113da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(kCondEq, "T"); 9122700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Strexd /* eq */, r_tmp.GetReg(), rl_new_value.reg.GetLowReg(), rl_new_value.reg.GetHighReg(), r_ptr.GetReg()); 9133e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 9143e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 9152700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Ldrex, r_tmp.GetReg(), r_ptr.GetReg(), 0); 9162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp, rl_expected.reg); 9178dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 9183da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(kCondEq, "T"); 9192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Strex /* eq */, r_tmp.GetReg(), rl_new_value.reg.GetReg(), r_ptr.GetReg(), 0); 9203e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 9213e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 9223e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Still one conditional left from OpIT(kCondEq, "T") from either branch 9233e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko OpRegImm(kOpCmp /* eq */, r_tmp, 1); 9243da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); 92543a065ce1dda78e963868f9753a6e263721af927Dave Allison 9262de2aa1a96dfa5bebc004f29b5dbfafd37039ceeJeff Hao OpCondBranch(kCondEq, target); 927efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 9283e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 9292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FreeTemp(rl_expected.reg); // Now unneeded. 9303e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 9313e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 93248f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm // Prevent reordering with subsequent memory operations. 93348f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm GenMemBarrier(kLoadAny); 93448f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm 9353e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // result := (tmp1 != 0) ? 0 : 1; 9363e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 9372700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpRsub, rl_result.reg, r_tmp, 1); 9388dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 9393da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(kCondUlt, ""); 9402700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, 0); /* cc */ 9413e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko FreeTemp(r_tmp); // Now unneeded. 9423da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Barrier to terminate OpIT. 9433e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 9441fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 945efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 9463e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Now, restore lr to its non-temp status. 947091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee Clobber(rs_rARM_LR); 948091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee UnmarkTemp(rs_rARM_LR); 949efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 950efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 951efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 952947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xubool ArmMir2Lir::GenInlinedArrayCopyCharArray(CallInfo* info) { 953947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu constexpr int kLargeArrayThreshold = 256; 954947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 955947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegLocation rl_src = info->args[0]; 956947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegLocation rl_src_pos = info->args[1]; 957947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegLocation rl_dst = info->args[2]; 958947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegLocation rl_dst_pos = info->args[3]; 959947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegLocation rl_length = info->args[4]; 960947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Compile time check, handle exception by non-inline method to reduce related meta-data. 961947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu if ((rl_src_pos.is_const && (mir_graph_->ConstantValue(rl_src_pos) < 0)) || 962947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu (rl_dst_pos.is_const && (mir_graph_->ConstantValue(rl_dst_pos) < 0)) || 963947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu (rl_length.is_const && (mir_graph_->ConstantValue(rl_length) < 0))) { 964947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu return false; 965947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu } 966947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 967947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu ClobberCallerSave(); 968947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LockCallTemps(); // Prepare for explicit register usage. 969947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LockTemp(rs_r12); 970947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_src = rs_r0; 971947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_dst = rs_r1; 972947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_src, rs_src); 973947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_dst, rs_dst); 974947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 975947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Handle null pointer exception in slow-path. 976947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* src_check_branch = OpCmpImmBranch(kCondEq, rs_src, 0, nullptr); 977947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* dst_check_branch = OpCmpImmBranch(kCondEq, rs_dst, 0, nullptr); 978947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Handle potential overlapping in slow-path. 979947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* src_dst_same = OpCmpBranch(kCondEq, rs_src, rs_dst, nullptr); 980947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Handle exception or big length in slow-path. 981947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_length = rs_r2; 982947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_length, rs_length); 983947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* len_neg_or_too_big = OpCmpImmBranch(kCondHi, rs_length, kLargeArrayThreshold, nullptr); 984947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Src bounds check. 985947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_pos = rs_r3; 986947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_arr_length = rs_r12; 987947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_src_pos, rs_pos); 988947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* src_pos_negative = OpCmpImmBranch(kCondLt, rs_pos, 0, nullptr); 989947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu Load32Disp(rs_src, mirror::Array::LengthOffset().Int32Value(), rs_arr_length); 990947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpSub, rs_arr_length, rs_pos); 991947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* src_bad_len = OpCmpBranch(kCondLt, rs_arr_length, rs_length, nullptr); 992947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Dst bounds check. 993947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_dst_pos, rs_pos); 994947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* dst_pos_negative = OpCmpImmBranch(kCondLt, rs_pos, 0, nullptr); 995947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu Load32Disp(rs_dst, mirror::Array::LengthOffset().Int32Value(), rs_arr_length); 996947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpSub, rs_arr_length, rs_pos); 997947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* dst_bad_len = OpCmpBranch(kCondLt, rs_arr_length, rs_length, nullptr); 998947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 999947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Everything is checked now. 1000947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegImm(kOpAdd, rs_dst, mirror::Array::DataOffset(2).Int32Value()); 1001947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpAdd, rs_dst, rs_pos); 1002947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpAdd, rs_dst, rs_pos); 1003947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegImm(kOpAdd, rs_src, mirror::Array::DataOffset(2).Int32Value()); 1004947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_src_pos, rs_pos); 1005947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpAdd, rs_src, rs_pos); 1006947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpAdd, rs_src, rs_pos); 1007947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1008947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_tmp = rs_pos; 1009947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegRegImm(kOpLsl, rs_length, rs_length, 1); 1010947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1011947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Copy one element. 1012947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegRegImm(kOpAnd, rs_tmp, rs_length, 2); 1013947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* jmp_to_begin_loop = OpCmpImmBranch(kCondEq, rs_tmp, 0, nullptr); 1014947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegImm(kOpSub, rs_length, 2); 1015947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadBaseIndexed(rs_src, rs_length, rs_tmp, 0, kSignedHalf); 1016947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu StoreBaseIndexed(rs_dst, rs_length, rs_tmp, 0, kSignedHalf); 1017947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1018947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Copy two elements. 1019947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR *begin_loop = NewLIR0(kPseudoTargetLabel); 1020947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* jmp_to_ret = OpCmpImmBranch(kCondEq, rs_length, 0, nullptr); 1021947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegImm(kOpSub, rs_length, 4); 1022947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadBaseIndexed(rs_src, rs_length, rs_tmp, 0, k32); 1023947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu StoreBaseIndexed(rs_dst, rs_length, rs_tmp, 0, k32); 1024947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpUnconditionalBranch(begin_loop); 1025947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1026947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR *check_failed = NewLIR0(kPseudoTargetLabel); 1027947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* launchpad_branch = OpUnconditionalBranch(nullptr); 1028947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* return_point = NewLIR0(kPseudoTargetLabel); 1029947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1030947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu src_check_branch->target = check_failed; 1031947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu dst_check_branch->target = check_failed; 1032947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu src_dst_same->target = check_failed; 1033947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu len_neg_or_too_big->target = check_failed; 1034947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu src_pos_negative->target = check_failed; 1035947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu src_bad_len->target = check_failed; 1036947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu dst_pos_negative->target = check_failed; 1037947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu dst_bad_len->target = check_failed; 1038947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu jmp_to_begin_loop->target = begin_loop; 1039947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu jmp_to_ret->target = return_point; 1040947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1041947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu AddIntrinsicSlowPath(info, launchpad_branch, return_point); 10429863daf4fdc1a08339edac794452dbc719aef4f1Serguei Katkov ClobberCallerSave(); // We must clobber everything because slow path will return here 1043947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1044947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu return true; 1045947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu} 1046947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 10472700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpPcRelLoad(RegStorage reg, LIR* target) { 10482700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return RawLIR(current_dalvik_offset_, kThumb2LdrPcRel12, reg.GetReg(), 0, 0, 0, 0, target); 1049efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1050efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 10512700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpVldm(RegStorage r_base, int count) { 1052091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee return NewLIR3(kThumb2Vldms, r_base.GetReg(), rs_fr0.GetReg(), count); 1053efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1054efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 10552700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpVstm(RegStorage r_base, int count) { 1056091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee return NewLIR3(kThumb2Vstms, r_base.GetReg(), rs_fr0.GetReg(), count); 1057efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1058efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 10591fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenMultiplyByTwoBitMultiplier(RegLocation rl_src, 106002031b185b4653e6c72e21f7a51238b903f6d638buzbee RegLocation rl_result, int lit, 10612ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom int first_bit, int second_bit) { 1062e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, rl_result.reg, rl_src.reg, rl_src.reg, 1063fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee EncodeShift(kArmLsl, second_bit - first_bit)); 1064fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (first_bit != 0) { 10652700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg, rl_result.reg, first_bit); 1066efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 1067efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1068efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1069e643a179cf5585ba6bafdd4fa51730d9f50c06f6Mingyao Yangvoid ArmMir2Lir::GenDivZeroCheckWide(RegStorage reg) { 10702700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(reg.IsPair()); // TODO: support k64BitSolo. 10712700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 10722700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, t_reg.GetReg(), reg.GetLowReg(), reg.GetHighReg(), 0); 10731fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 1074e643a179cf5585ba6bafdd4fa51730d9f50c06f6Mingyao Yang GenDivZeroCheck(kCondEq); 1075efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1076efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1077efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Test suspend flag, return target of taken suspend branch 10782ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* ArmMir2Lir::OpTestSuspend(LIR* target) { 107904f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin#ifdef ARM_R4_SUSPEND_FLAG 1080091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee NewLIR2(kThumbSubRI8, rs_rARM_SUSPEND.GetReg(), 1); 10811fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpCondBranch((target == NULL) ? kCondEq : kCondNe, target); 108204f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin#else 108304f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin RegStorage t_reg = AllocTemp(); 108404f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin LoadBaseDisp(rs_rARM_SELF, Thread::ThreadFlagsOffset<4>().Int32Value(), 108504f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin t_reg, kUnsignedHalf); 108604f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin LIR* cmp_branch = OpCmpImmBranch((target == NULL) ? kCondNe : kCondEq, t_reg, 108704f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin 0, target); 108804f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin FreeTemp(t_reg); 108904f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin return cmp_branch; 109004f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin#endif 1091efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1092efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1093efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Decrement register and branch on condition 10942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpDecAndBranch(ConditionCode c_code, RegStorage reg, LIR* target) { 1095efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Combine sub & test using sub setflags encoding here 1096dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko OpRegRegImm(kOpSub, reg, reg, 1); // For value == 1, this should set flags. 10978dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 10981fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpCondBranch(c_code, target); 1099efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1100efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1101b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampebool ArmMir2Lir::GenMemBarrier(MemBarrierKind barrier_kind) { 1102efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#if ANDROID_SMP != 0 110399ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // Start off with using the last LIR as the barrier. If it is not enough, then we will generate one. 110499ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru LIR* barrier = last_lir_insn_; 110599ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 1106fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int dmb_flavor; 11071bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee // TODO: revisit Arm barrier kinds 1108fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee switch (barrier_kind) { 110948f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm case kAnyStore: dmb_flavor = kISH; break; 111048f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm case kLoadAny: dmb_flavor = kISH; break; 1111b122a4bbed34ab22b4c1541ee25e5cf22f12a926Ian Rogers case kStoreStore: dmb_flavor = kISHST; break; 111248f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm case kAnyAny: dmb_flavor = kISH; break; 11131bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee default: 1114fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(FATAL) << "Unexpected MemBarrierKind: " << barrier_kind; 1115fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee dmb_flavor = kSY; // quiet gcc. 11161bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee break; 11171bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee } 111899ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 1119b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe bool ret = false; 1120b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe 112199ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // If the same barrier already exists, don't generate another. 112299ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru if (barrier == nullptr 112399ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru || (barrier != nullptr && (barrier->opcode != kThumb2Dmb || barrier->operands[0] != dmb_flavor))) { 112499ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru barrier = NewLIR1(kThumb2Dmb, dmb_flavor); 1125b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe ret = true; 112699ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru } 112799ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 112899ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // At this point we must have a memory barrier. Mark it as a scheduling barrier as well. 112999ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru DCHECK(!barrier->flags.use_def_invalid); 11308dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko barrier->u.m.def_mask = &kEncodeAll; 1131b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe return ret; 1132b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe#else 1133b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe return false; 1134efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#endif 1135efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1136efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 11372ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenNegLong(RegLocation rl_dest, RegLocation rl_src) { 11381fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, kCoreReg); 11391fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 11402700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage z_reg = AllocTemp(); 11411fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstantNoClobber(z_reg, 0); 1142efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Check for destructive overlap 11432700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (rl_result.reg.GetLowReg() == rl_src.reg.GetHighReg()) { 11442700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 11452700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg.GetLow(), z_reg, rl_src.reg.GetLow()); 11462700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSbc, rl_result.reg.GetHigh(), z_reg, t_reg); 11471fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 1148efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 11492700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg.GetLow(), z_reg, rl_src.reg.GetLow()); 11502700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSbc, rl_result.reg.GetHigh(), z_reg, rl_src.reg.GetHigh()); 1151efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 11521fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(z_reg); 11531fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 1154efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1155efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1156e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenMulLong(Instruction::Code opcode, RegLocation rl_dest, 1157e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell RegLocation rl_src1, RegLocation rl_src2) { 11584ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee /* 1159d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * tmp1 = src1.hi * src2.lo; // src1.hi is no longer needed 1160d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * dest = src1.lo * src2.lo; 1161d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * tmp1 += src1.lo * src2.hi; 1162d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * dest.hi += tmp1; 1163d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * 1164d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * To pull off inline multiply, we have a worst-case requirement of 7 temporary 11654ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * registers. Normally for Arm, we get 5. We can get to 6 by including 11664ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * lr in the temp set. The only problematic case is all operands and result are 11674ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * distinct, and none have been promoted. In that case, we can succeed by aggressively 11684ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * freeing operand temp registers after they are no longer needed. All other cases 11694ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * can proceed normally. We'll just punt on the case of the result having a misaligned 11704ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * overlap with either operand and send that case to a runtime handler. 11714ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee */ 11724ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee RegLocation rl_result; 1173d8c3e3608a7b47e82186e4f8118541ef06d9eab2Alexei Zavjalov if (PartiallyIntersects(rl_src1, rl_dest) || (PartiallyIntersects(rl_src2, rl_dest))) { 11741fd3346740dfb7f47be9922312b68a4227fada96buzbee FlushAllRegs(); 1175984305917bf57b3f8d92965e4715a0370cc5bcfbAndreas Gampe CallRuntimeHelperRegLocationRegLocation(kQuickLmul, rl_src1, rl_src2, false); 1176a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_result = GetReturnWide(kCoreReg); 11771fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 11784ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return; 11794ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1180d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 1181d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu rl_src1 = LoadValueWide(rl_src1, kCoreReg); 1182d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu rl_src2 = LoadValueWide(rl_src2, kCoreReg); 1183d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 1184d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu int reg_status = 0; 11852700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage res_lo; 11862700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage res_hi; 11872700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool dest_promoted = rl_dest.location == kLocPhysReg && rl_dest.reg.Valid() && 1188091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee !IsTemp(rl_dest.reg.GetLow()) && !IsTemp(rl_dest.reg.GetHigh()); 1189091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool src1_promoted = !IsTemp(rl_src1.reg.GetLow()) && !IsTemp(rl_src1.reg.GetHigh()); 1190091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool src2_promoted = !IsTemp(rl_src2.reg.GetLow()) && !IsTemp(rl_src2.reg.GetHigh()); 1191d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // Check if rl_dest is *not* either operand and we have enough temp registers. 1192d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if ((rl_dest.s_reg_low != rl_src1.s_reg_low && rl_dest.s_reg_low != rl_src2.s_reg_low) && 1193d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu (dest_promoted || src1_promoted || src2_promoted)) { 1194d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // In this case, we do not need to manually allocate temp registers for result. 1195d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu rl_result = EvalLoc(rl_dest, kCoreReg, true); 11962700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res_lo = rl_result.reg.GetLow(); 11972700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res_hi = rl_result.reg.GetHigh(); 1198d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } else { 1199d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu res_lo = AllocTemp(); 1200d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if ((rl_src1.s_reg_low == rl_src2.s_reg_low) || src1_promoted || src2_promoted) { 1201d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // In this case, we have enough temp registers to be allocated for result. 1202d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu res_hi = AllocTemp(); 1203d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu reg_status = 1; 1204d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } else { 1205d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // In this case, all temps are now allocated. 1206d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // res_hi will be allocated after we can free src1_hi. 1207d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu reg_status = 2; 1208d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } 1209d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } 1210d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 12114ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Temporarily add LR to the temp pool, and assign it to tmp1 1212091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee MarkTemp(rs_rARM_LR); 1213091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rs_rARM_LR); 12142700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage tmp1 = rs_rARM_LR; 1215091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee LockTemp(rs_rARM_LR); 12164ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 12172700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (rl_src1.reg == rl_src2.reg) { 12182700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_hi.Valid()); 12192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_lo.Valid()); 12202700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2MulRRR, tmp1.GetReg(), rl_src1.reg.GetLowReg(), rl_src1.reg.GetHighReg()); 12212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Umull, res_lo.GetReg(), res_hi.GetReg(), rl_src1.reg.GetLowReg(), 12222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src1.reg.GetLowReg()); 1223e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, res_hi, res_hi, tmp1, EncodeShift(kArmLsl, 1)); 12244ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 12252700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2MulRRR, tmp1.GetReg(), rl_src2.reg.GetLowReg(), rl_src1.reg.GetHighReg()); 1226d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if (reg_status == 2) { 12272700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(!res_hi.Valid()); 12282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK_NE(rl_src1.reg.GetLowReg(), rl_src2.reg.GetLowReg()); 122900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee DCHECK_NE(rl_src1.reg.GetHighReg(), rl_src2.reg.GetHighReg()); 1230082833c8d577db0b2bebc100602f31e4e971613ebuzbee // Will force free src1_hi, so must clobber. 1231082833c8d577db0b2bebc100602f31e4e971613ebuzbee Clobber(rl_src1.reg); 1232091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rl_src1.reg.GetHigh()); 1233d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu res_hi = AllocTemp(); 12344ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_hi.Valid()); 12362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_lo.Valid()); 12372700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Umull, res_lo.GetReg(), res_hi.GetReg(), rl_src2.reg.GetLowReg(), 12382700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src1.reg.GetLowReg()); 12392700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Mla, tmp1.GetReg(), rl_src1.reg.GetLowReg(), rl_src2.reg.GetHighReg(), 12402700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee tmp1.GetReg()); 12412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2AddRRR, res_hi.GetReg(), tmp1.GetReg(), res_hi.GetReg(), 0); 1242d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if (reg_status == 2) { 1243082833c8d577db0b2bebc100602f31e4e971613ebuzbee FreeTemp(rl_src1.reg.GetLow()); 12444ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12454ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1246d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 12474ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Now, restore lr to its non-temp status. 1248d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu FreeTemp(tmp1); 1249091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee Clobber(rs_rARM_LR); 1250091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee UnmarkTemp(rs_rARM_LR); 1251d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 1252d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if (reg_status != 0) { 1253d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // We had manually allocated registers for rl_result. 1254d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // Now construct a RegLocation. 1255a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_result = GetReturnWide(kCoreReg); // Just using as a template. 12562700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_result.reg = RegStorage::MakeRegPair(res_lo, res_hi); 1257d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } 1258d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 1259d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu StoreValueWide(rl_dest, rl_result); 12604ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 12614ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1262c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampevoid ArmMir2Lir::GenArithOpLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 1263c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe RegLocation rl_src2) { 1264c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe switch (opcode) { 1265c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe case Instruction::MUL_LONG: 1266c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe case Instruction::MUL_LONG_2ADDR: 1267c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe GenMulLong(opcode, rl_dest, rl_src1, rl_src2); 1268c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe return; 1269c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe case Instruction::NEG_LONG: 1270c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe GenNegLong(rl_dest, rl_src2); 1271c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe return; 1272efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1273c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe default: 1274c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe break; 1275c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe } 1276efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1277c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe // Fallback for all other ops. 1278c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe Mir2Lir::GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2); 1279efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1280efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1281e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee/* 1282e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * Generate array load 1283e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee */ 12841fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArrayGet(int opt_flags, OpSize size, RegLocation rl_array, 1285a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers RegLocation rl_index, RegLocation rl_dest, int scale) { 1286091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegisterClass reg_class = RegClassBySize(size); 12872dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers int len_offset = mirror::Array::LengthOffset().Int32Value(); 1288e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee int data_offset; 1289e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee RegLocation rl_result; 12904ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee bool constant_index = rl_index.is_const; 1291a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_array = LoadValue(rl_array, kRefReg); 12924ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 12931fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_index = LoadValue(rl_index, kCoreReg); 12944ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1295e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1296e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_dest.wide) { 12972dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int64_t)).Int32Value(); 1298e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 12992dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int32_t)).Int32Value(); 1300e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1301e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 13024ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // If index is constant, just fold it into the data offset 13034ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 13041fd3346740dfb7f47be9922312b68a4227fada96buzbee data_offset += mir_graph_->ConstantValue(rl_index) << scale; 13054ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13064ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1307e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* null object? */ 13082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenNullCheck(rl_array.reg, opt_flags); 1309e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1310e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee bool needs_range_check = (!(opt_flags & MIR_IGNORE_RANGE_CHECK)); 13112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_len; 1312e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 13131fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_len = AllocTemp(); 1314e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* Get len */ 1315695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_array.reg, len_offset, reg_len); 1316b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1317b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison } else { 13182700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee ForceImplicitNullCheck(rl_array.reg, opt_flags); 1319e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 13204ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_dest.wide || rl_dest.fp || constant_index) { 13212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr; 13224ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 13232700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; // NOTE: must not alter reg_ptr in constant case. 13244ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 13254ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // No special indexed operation, lea + load w/ displacement 1326a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee reg_ptr = AllocTempRef(); 1327e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, reg_ptr, rl_array.reg, rl_index.reg, EncodeShift(kArmLsl, scale)); 1328091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rl_index.reg); 13294ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13301fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, reg_class, true); 1331e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1332e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 13334ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 133480365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(mir_graph_->ConstantValue(rl_index), reg_len); 13354ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 133680365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(rl_index.reg, reg_len); 13374ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13381fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1339e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 13403c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe LoadBaseDisp(reg_ptr, data_offset, rl_result.reg, size, kNotVolatile); 1341455759b5702b9435b91d1b4dada22c4cce7cae3cVladimir Marko MarkPossibleNullPointerException(opt_flags); 1342455759b5702b9435b91d1b4dada22c4cce7cae3cVladimir Marko if (!constant_index) { 1343455759b5702b9435b91d1b4dada22c4cce7cae3cVladimir Marko FreeTemp(reg_ptr); 1344455759b5702b9435b91d1b4dada22c4cce7cae3cVladimir Marko } 1345e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_dest.wide) { 13461fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 1347e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 13481fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 1349e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1350e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1351e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee // Offset base, then use indexed load 1352a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegStorage reg_ptr = AllocTempRef(); 13532700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAdd, reg_ptr, rl_array.reg, data_offset); 1354091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rl_array.reg); 13551fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, reg_class, true); 1356e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1357e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 135880365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(rl_index.reg, reg_len); 13591fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1360e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 13612700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadBaseIndexed(reg_ptr, rl_index.reg, rl_result.reg, scale, size); 1362b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 13631fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 13641fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 1365e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1366e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee} 1367e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1368e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee/* 1369e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * Generate array store 1370e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * 1371e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee */ 13721fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArrayPut(int opt_flags, OpSize size, RegLocation rl_array, 1373a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers RegLocation rl_index, RegLocation rl_src, int scale, bool card_mark) { 1374091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegisterClass reg_class = RegClassBySize(size); 13752dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers int len_offset = mirror::Array::LengthOffset().Int32Value(); 13764ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee bool constant_index = rl_index.is_const; 1377e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1378a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers int data_offset; 1379695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee if (size == k64 || size == kDouble) { 13802dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int64_t)).Int32Value(); 1381e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 13822dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int32_t)).Int32Value(); 1383e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1384e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 13854ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // If index is constant, just fold it into the data offset. 13864ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 13871fd3346740dfb7f47be9922312b68a4227fada96buzbee data_offset += mir_graph_->ConstantValue(rl_index) << scale; 13884ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13894ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1390a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_array = LoadValue(rl_array, kRefReg); 13914ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 13921fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_index = LoadValue(rl_index, kCoreReg); 13934ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13944ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 13952700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr; 1396773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers bool allocated_reg_ptr_temp = false; 13974ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 13982700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; 1399091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee } else if (IsTemp(rl_array.reg) && !card_mark) { 1400091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee Clobber(rl_array.reg); 14012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; 1402e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1403773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers allocated_reg_ptr_temp = true; 1404a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee reg_ptr = AllocTempRef(); 1405e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1406e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1407e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* null object? */ 14082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenNullCheck(rl_array.reg, opt_flags); 1409e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1410e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee bool needs_range_check = (!(opt_flags & MIR_IGNORE_RANGE_CHECK)); 14112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_len; 1412e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 14131fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_len = AllocTemp(); 14147934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // NOTE: max live temps(4) here. 1415e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* Get len */ 1416695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_array.reg, len_offset, reg_len); 1417b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1418b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison } else { 14192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee ForceImplicitNullCheck(rl_array.reg, opt_flags); 1420e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1421e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* at this point, reg_ptr points to array, 2 live temps */ 14224ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src.wide || rl_src.fp || constant_index) { 1423e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_src.wide) { 14241fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, reg_class); 1425e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 14261fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, reg_class); 1427e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 14284ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 1429e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, reg_ptr, rl_array.reg, rl_index.reg, EncodeShift(kArmLsl, scale)); 14304ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1431e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 14324ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 143380365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(mir_graph_->ConstantValue(rl_index), reg_len); 14344ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 143580365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(rl_index.reg, reg_len); 14364ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 14371fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1438e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 14394ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 14403c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe StoreBaseDisp(reg_ptr, data_offset, rl_src.reg, size, kNotVolatile); 1441b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1442e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1443e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* reg_ptr -> array data */ 14442700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAdd, reg_ptr, rl_array.reg, data_offset); 14451fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, reg_class); 1446e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 144780365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(rl_index.reg, reg_len); 14481fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1449e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 14502700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseIndexed(reg_ptr, rl_index.reg, rl_src.reg, scale, size); 1451b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1452e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1453773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers if (allocated_reg_ptr_temp) { 14541fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 14554ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1456a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers if (card_mark) { 14572700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee MarkGCCard(rl_src.reg, rl_array.reg); 14586a791b26577a61fd14f4836c795d616869bd2957buzbee } 1459e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee} 1460e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1461a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers 14621fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenShiftImmOpLong(Instruction::Code opcode, 14632ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_dest, RegLocation rl_src, RegLocation rl_shift) { 14641fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, kCoreReg); 14654ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Per spec, we only care about low 6 bits of shift amount. 14661fd3346740dfb7f47be9922312b68a4227fada96buzbee int shift_amount = mir_graph_->ConstantValue(rl_shift) & 0x3f; 14674ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 0) { 14681fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_src); 1469a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 14704ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1471d8c3e3608a7b47e82186e4f8118541ef06d9eab2Alexei Zavjalov if (PartiallyIntersects(rl_src, rl_dest)) { 14721fd3346740dfb7f47be9922312b68a4227fada96buzbee GenShiftOpLong(opcode, rl_dest, rl_src, rl_shift); 1473a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 14744ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 14751fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 1476df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (opcode) { 14774ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHL_LONG: 14784ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHL_LONG_2ADDR: 14794ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 1) { 14802700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdd, rl_result.reg.GetLow(), rl_src.reg.GetLow(), rl_src.reg.GetLow()); 14812700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdc, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), rl_src.reg.GetHigh()); 14824ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount == 32) { 14832700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetHigh(), rl_src.reg); 14842700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetLow(), 0); 14854ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 14862700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetHigh(), rl_src.reg.GetLow(), shift_amount - 32); 14872700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetLow(), 0); 14884ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 14892700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 1490e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpOr, rl_result.reg.GetHigh(), rl_result.reg.GetHigh(), rl_src.reg.GetLow(), 14914ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsr, 32 - shift_amount)); 14922700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetLow(), rl_src.reg.GetLow(), shift_amount); 14934ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 14944ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 14954ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHR_LONG: 14964ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHR_LONG_2ADDR: 14974ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 32) { 14982700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetLow(), rl_src.reg.GetHigh()); 14992700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), 31); 15004ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 15012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetLow(), rl_src.reg.GetHigh(), shift_amount - 32); 15022700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), 31); 15034ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 15042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 15052700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, t_reg, rl_src.reg.GetLow(), shift_amount); 1506e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpOr, rl_result.reg.GetLow(), t_reg, rl_src.reg.GetHigh(), 15074ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsl, 32 - shift_amount)); 15081fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 15092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 15104ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15114ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15124ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::USHR_LONG: 15134ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::USHR_LONG_2ADDR: 15144ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 32) { 15152700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetLow(), rl_src.reg.GetHigh()); 15162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetHigh(), 0); 15174ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 15182700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, rl_result.reg.GetLow(), rl_src.reg.GetHigh(), shift_amount - 32); 15192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetHigh(), 0); 15204ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 15212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 15222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, t_reg, rl_src.reg.GetLow(), shift_amount); 1523e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpOr, rl_result.reg.GetLow(), t_reg, rl_src.reg.GetHigh(), 15244ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsl, 32 - shift_amount)); 15251fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 15262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 15274ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15284ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15294ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 15304ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected case"; 15314ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15321fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 15334ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 15344ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 15351fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArithImmOpLong(Instruction::Code opcode, 15362ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_dest, RegLocation rl_src1, RegLocation rl_src2) { 15374ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((opcode == Instruction::SUB_LONG_2ADDR) || (opcode == Instruction::SUB_LONG)) { 15384ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!rl_src2.is_const) { 15394ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Don't bother with special handling for subtract from immediate. 15401fd3346740dfb7f47be9922312b68a4227fada96buzbee GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2); 1541a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 15424ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15434ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 15444ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Normalize 15454ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!rl_src2.is_const) { 15464ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee DCHECK(rl_src1.is_const); 154758af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko std::swap(rl_src1, rl_src2); 15484ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15494ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1550d8c3e3608a7b47e82186e4f8118541ef06d9eab2Alexei Zavjalov if (PartiallyIntersects(rl_src1, rl_dest)) { 15511fd3346740dfb7f47be9922312b68a4227fada96buzbee GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2); 1552a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 15534ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15544ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee DCHECK(rl_src2.is_const); 15551fd3346740dfb7f47be9922312b68a4227fada96buzbee int64_t val = mir_graph_->ConstantValueWide(rl_src2); 15564ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee uint32_t val_lo = Low32Bits(val); 15574ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee uint32_t val_hi = High32Bits(val); 15584ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t mod_imm_lo = ModifiedImmediate(val_lo); 15594ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t mod_imm_hi = ModifiedImmediate(val_hi); 15604ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 15614ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Only a subset of add/sub immediate instructions set carry - so bail if we don't fit 1562df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (opcode) { 15634ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG: 15644ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG_2ADDR: 15654ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG: 15664ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG_2ADDR: 15674ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((mod_imm_lo < 0) || (mod_imm_hi < 0)) { 15681fd3346740dfb7f47be9922312b68a4227fada96buzbee GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2); 1569a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 15704ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15714ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15724ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 15734ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15744ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15751fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 15761fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 15774ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // NOTE: once we've done the EvalLoc on dest, we can no longer bail. 15784ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee switch (opcode) { 15794ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG: 15804ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG_2ADDR: 15812700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2AddRRI8M, rl_result.reg.GetLowReg(), rl_src1.reg.GetLowReg(), mod_imm_lo); 158200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee NewLIR3(kThumb2AdcRRI8M, rl_result.reg.GetHighReg(), rl_src1.reg.GetHighReg(), mod_imm_hi); 15834ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15844ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::OR_LONG: 15854ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::OR_LONG_2ADDR: 15862700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if ((val_lo != 0) || (rl_result.reg.GetLowReg() != rl_src1.reg.GetLowReg())) { 15872700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpOr, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 15884ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 158900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if ((val_hi != 0) || (rl_result.reg.GetHighReg() != rl_src1.reg.GetHighReg())) { 15902700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpOr, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 15914ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15924ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15934ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::XOR_LONG: 15944ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::XOR_LONG_2ADDR: 15952700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpXor, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 15962700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpXor, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 15974ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15984ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::AND_LONG: 15994ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::AND_LONG_2ADDR: 16002700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if ((val_lo != 0xffffffff) || (rl_result.reg.GetLowReg() != rl_src1.reg.GetLowReg())) { 16012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAnd, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 16024ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 160300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if ((val_hi != 0xffffffff) || (rl_result.reg.GetHighReg() != rl_src1.reg.GetHighReg())) { 16042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAnd, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 16054ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 16064ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 16074ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG_2ADDR: 16084ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG: 16092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2SubRRI8M, rl_result.reg.GetLowReg(), rl_src1.reg.GetLowReg(), mod_imm_lo); 161000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee NewLIR3(kThumb2SbcRRI8M, rl_result.reg.GetHighReg(), rl_src1.reg.GetHighReg(), mod_imm_hi); 16114ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 16124ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 16134ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected opcode " << opcode; 16144ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 16151fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 16164ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 16174ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1618efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} // namespace art 1619