int_arm.cc revision 2f340a843ea5b3413c901f8c2365243b68864468
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 198366ca0d7ba3b80a2d5be65ba436446cc32440bdElliott Hughes#include "arch/instruction_set_features.h" 201bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee#include "arm_lir.h" 2102031b185b4653e6c72e21f7a51238b903f6d638buzbee#include "codegen_arm.h" 227940e44f4517de5e2634a7e07d58d0fb26160513Brian Carlstrom#include "dex/quick/mir_to_lir-inl.h" 23b5860fb459f1ed71f39d8a87b45bee6727d79fe8buzbee#include "dex/reg_storage_eq.h" 24166db04e259ca51838c311891598664deeed85adIan Rogers#include "entrypoints/quick/quick_entrypoints.h" 257e70b002c4552347ed1af8c002a0e13f08864f20Ian Rogers#include "mirror/array-inl.h" 26efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 27efc6369224b036a1fb77849f7ae65b3492c832c0buzbeenamespace art { 28efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpCmpBranch(ConditionCode cond, RegStorage src1, RegStorage src2, LIR* target) { 301fd3346740dfb7f47be9922312b68a4227fada96buzbee OpRegReg(kOpCmp, src1, src2); 311fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpCondBranch(cond, target); 32efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 33efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 34efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 35efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Generate a Thumb2 IT instruction, which can nullify up to 36efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * four subsequent instructions based on a condition and its 37efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * inverse. The condition applies to the first instruction, which 38efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * is executed if the condition is met. The string "guide" consists 39efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * of 0 to 3 chars, and applies to the 2nd through 4th instruction. 40efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * A "T" means the instruction is executed if the condition is 41efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * met, and an "E" means the instruction is executed if the condition 42efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * is not met. 43efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 442ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* ArmMir2Lir::OpIT(ConditionCode ccode, const char* guide) { 45efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask; 46efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask3 = 0; 47efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask2 = 0; 48efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask1 = 0; 4902031b185b4653e6c72e21f7a51238b903f6d638buzbee ArmConditionCode code = ArmConditionEncoding(ccode); 5002031b185b4653e6c72e21f7a51238b903f6d638buzbee int cond_bit = code & 1; 5102031b185b4653e6c72e21f7a51238b903f6d638buzbee int alt_bit = cond_bit ^ 1; 52efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 53efc6369224b036a1fb77849f7ae65b3492c832c0buzbee switch (strlen(guide)) { 54efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 3: 55fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mask1 = (guide[2] == 'T') ? cond_bit : alt_bit; 56fc787ecd91127b2c8458afd94e5148e2ae51a1f5Ian Rogers FALLTHROUGH_INTENDED; 57efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 2: 58fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mask2 = (guide[1] == 'T') ? cond_bit : alt_bit; 59fc787ecd91127b2c8458afd94e5148e2ae51a1f5Ian Rogers FALLTHROUGH_INTENDED; 60efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 1: 61fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mask3 = (guide[0] == 'T') ? cond_bit : alt_bit; 62efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 63efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 0: 64efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 65efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 6652a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "OAT: bad case in OpIT"; 67fc787ecd91127b2c8458afd94e5148e2ae51a1f5Ian Rogers UNREACHABLE(); 68efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 69efc6369224b036a1fb77849f7ae65b3492c832c0buzbee mask = (mask3 << 3) | (mask2 << 2) | (mask1 << 1) | 70efc6369224b036a1fb77849f7ae65b3492c832c0buzbee (1 << (3 - strlen(guide))); 711fd3346740dfb7f47be9922312b68a4227fada96buzbee return NewLIR2(kThumb2It, code, mask); 72efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 73efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 74b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampevoid ArmMir2Lir::UpdateIT(LIR* it, const char* new_guide) { 75b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int mask; 76b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int mask3 = 0; 77b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int mask2 = 0; 78b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int mask1 = 0; 79b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe ArmConditionCode code = static_cast<ArmConditionCode>(it->operands[0]); 80b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int cond_bit = code & 1; 81b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe int alt_bit = cond_bit ^ 1; 82b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe 83b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe switch (strlen(new_guide)) { 84b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe case 3: 85b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe mask1 = (new_guide[2] == 'T') ? cond_bit : alt_bit; 86fc787ecd91127b2c8458afd94e5148e2ae51a1f5Ian Rogers FALLTHROUGH_INTENDED; 87b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe case 2: 88b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe mask2 = (new_guide[1] == 'T') ? cond_bit : alt_bit; 89fc787ecd91127b2c8458afd94e5148e2ae51a1f5Ian Rogers FALLTHROUGH_INTENDED; 90b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe case 1: 91b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe mask3 = (new_guide[0] == 'T') ? cond_bit : alt_bit; 92b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe break; 93b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe case 0: 94b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe break; 95b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe default: 96b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe LOG(FATAL) << "OAT: bad case in UpdateIT"; 97fc787ecd91127b2c8458afd94e5148e2ae51a1f5Ian Rogers UNREACHABLE(); 98b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe } 99b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe mask = (mask3 << 3) | (mask2 << 2) | (mask1 << 1) | 100b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe (1 << (3 - strlen(new_guide))); 101b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe it->operands[1] = mask; 102b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe} 103b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe 1043da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allisonvoid ArmMir2Lir::OpEndIT(LIR* it) { 1053da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison // TODO: use the 'it' pointer to do some checks with the LIR, for example 1063da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison // we could check that the number of instructions matches the mask 1073da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison // in the IT instruction. 1083da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison CHECK(it != nullptr); 1093da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison GenBarrier(); 1103da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison} 1113da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison 112efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 113efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * 64-bit 3way compare function. 114efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov rX, #-1 115efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * cmp op1hi, op2hi 116efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * blt done 117efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * bgt flip 118efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * sub rX, op1lo, op2lo (treat as unsigned) 119efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * beq done 120efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * ite hi 121efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov(hi) rX, #-1 122efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov(!hi) rX, #1 123efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * flip: 124efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * neg rX 125efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * done: 126efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 127a1983d4dab10b0cc51e9d1b6bcafa9a723fabcd9buzbeevoid ArmMir2Lir::GenCmpLong(RegLocation rl_dest, RegLocation rl_src1, RegLocation rl_src2) { 128efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* target1; 129efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* target2; 1301fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 1311fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValueWide(rl_src2, kCoreReg); 1322700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 1331fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg, -1); 1342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetHigh(), rl_src2.reg.GetHigh()); 1351fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch1 = OpCondBranch(kCondLt, NULL); 1361fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch2 = OpCondBranch(kCondGt, NULL); 137a1983d4dab10b0cc51e9d1b6bcafa9a723fabcd9buzbee OpRegRegReg(kOpSub, t_reg, rl_src1.reg.GetLow(), rl_src2.reg.GetLow()); 1381fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch3 = OpCondBranch(kCondEq, NULL); 1391fd3346740dfb7f47be9922312b68a4227fada96buzbee 1403da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(kCondHi, "E"); 1412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR2(kThumb2MovI8M, t_reg.GetReg(), ModifiedImmediate(-1)); 1421fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg, 1); 1433da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); 1441fd3346740dfb7f47be9922312b68a4227fada96buzbee 1451fd3346740dfb7f47be9922312b68a4227fada96buzbee target2 = NewLIR0(kPseudoTargetLabel); 1461fd3346740dfb7f47be9922312b68a4227fada96buzbee OpRegReg(kOpNeg, t_reg, t_reg); 1471fd3346740dfb7f47be9922312b68a4227fada96buzbee 1481fd3346740dfb7f47be9922312b68a4227fada96buzbee target1 = NewLIR0(kPseudoTargetLabel); 149fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee 1507934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom RegLocation rl_temp = LocCReturn(); // Just using as template, will change 1512700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_temp.reg.SetReg(t_reg.GetReg()); 1521fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_temp); 1531fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 154efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 155cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee branch1->target = target1; 156cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee branch2->target = target2; 157efc6369224b036a1fb77849f7ae65b3492c832c0buzbee branch3->target = branch1->target; 158efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 159efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1601fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenFusedLongCmpImmBranch(BasicBlock* bb, RegLocation rl_src1, 1612ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom int64_t val, ConditionCode ccode) { 1624ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t val_lo = Low32Bits(val); 1634ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t val_hi = High32Bits(val); 1644274889d48ef82369bf2c1ca70d84689b4f9e93aBrian Carlstrom DCHECK_GE(ModifiedImmediate(val_lo), 0); 1654274889d48ef82369bf2c1ca70d84689b4f9e93aBrian Carlstrom DCHECK_GE(ModifiedImmediate(val_hi), 0); 1660d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* taken = &block_label_list_[bb->taken]; 1670d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* not_taken = &block_label_list_[bb->fall_through]; 1681fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 1692700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage low_reg = rl_src1.reg.GetLow(); 1702700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage high_reg = rl_src1.reg.GetHigh(); 1714ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 17258af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko if (val == 0 && (ccode == kCondEq || ccode == kCondNe)) { 1732700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 1742700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, t_reg.GetReg(), low_reg.GetReg(), high_reg.GetReg(), 0); 17558af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko FreeTemp(t_reg); 17658af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko OpCondBranch(ccode, taken); 17758af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko return; 17858af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko } 17958af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko 180df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (ccode) { 1814ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondEq: 1824ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondNe: 18358af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko OpCmpImmBranch(kCondNe, high_reg, val_hi, (ccode == kCondEq) ? not_taken : taken); 1844ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1854ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondLt: 1861fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, taken); 1871fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, not_taken); 18858af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUlt; 1894ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1904ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondLe: 1911fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, taken); 1921fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, not_taken); 1934ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = kCondLs; 1944ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1954ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondGt: 1961fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, taken); 1971fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, not_taken); 1984ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = kCondHi; 1994ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 2004ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondGe: 2011fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, taken); 2021fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, not_taken); 20358af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUge; 2044ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 2054ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 2064ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected ccode: " << ccode; 2074ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 2081fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(ccode, low_reg, val_lo, taken); 2094ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 2104ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 21190969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampevoid ArmMir2Lir::GenSelectConst32(RegStorage left_op, RegStorage right_op, ConditionCode code, 21290969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe int32_t true_val, int32_t false_val, RegStorage rs_dest, 2136a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers RegisterClass dest_reg_class) { 2146a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(dest_reg_class); 21590969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe // TODO: Generalize the IT below to accept more than one-instruction loads. 21690969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe DCHECK(InexpensiveConstantInt(true_val)); 21790969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe DCHECK(InexpensiveConstantInt(false_val)); 21890969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe 21990969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe if ((true_val == 0 && code == kCondEq) || 22090969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe (false_val == 0 && code == kCondNe)) { 22190969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe OpRegRegReg(kOpSub, rs_dest, left_op, right_op); 22290969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 22390969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe LIR* it = OpIT(kCondNe, ""); 22490969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe LoadConstant(rs_dest, code == kCondEq ? false_val : true_val); 22590969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe OpEndIT(it); 22690969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe return; 22790969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe } 22890969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe 22990969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe OpRegReg(kOpCmp, left_op, right_op); // Same? 23090969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe LIR* it = OpIT(code, "E"); // if-convert the test 23190969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe LoadConstant(rs_dest, true_val); // .eq case - load true 23290969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe LoadConstant(rs_dest, false_val); // .eq case - load true 23390969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe OpEndIT(it); 23490969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe} 23590969af6deb19b1dbe356d62fe68d8f5698d3d8fAndreas Gampe 2362ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenSelect(BasicBlock* bb, MIR* mir) { 2376a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(bb); 238f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee RegLocation rl_result; 2391fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src = mir_graph_->GetSrc(mir, 0); 2401fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = mir_graph_->GetDest(mir); 241a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee // Avoid using float regs here. 242a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegisterClass src_reg_class = rl_src.ref ? kRefReg : kCoreReg; 243a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegisterClass result_reg_class = rl_dest.ref ? kRefReg : kCoreReg; 244a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_src = LoadValue(rl_src, src_reg_class); 245a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko ConditionCode ccode = mir->meta.ccode; 246f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee if (mir->ssa_rep->num_uses == 1) { 247f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // CONST case 248f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee int true_val = mir->dalvikInsn.vB; 249f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee int false_val = mir->dalvikInsn.vC; 250a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_result = EvalLoc(rl_dest, result_reg_class, true); 251a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko // Change kCondNe to kCondEq for the special cases below. 252a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko if (ccode == kCondNe) { 253a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko ccode = kCondEq; 254a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko std::swap(true_val, false_val); 255a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } 256a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko bool cheap_false_val = InexpensiveConstantInt(false_val); 257a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko if (cheap_false_val && ccode == kCondEq && (true_val == 0 || true_val == -1)) { 2582700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpSub, rl_result.reg, rl_src.reg, -true_val); 2598dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 2603da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(true_val == 0 ? kCondNe : kCondUge, ""); 2612700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 2623da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 263a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } else if (cheap_false_val && ccode == kCondEq && true_val == 1) { 2642700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpRsub, rl_result.reg, rl_src.reg, 1); 2658dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 2663da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(kCondLs, ""); 2672700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 2683da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 269a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } else if (cheap_false_val && InexpensiveConstantInt(true_val)) { 2702700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 2713da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(ccode, "E"); 2722700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, true_val); 2732700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 2743da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 275f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } else { 276f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // Unlikely case - could be tuned. 277a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegStorage t_reg1 = AllocTypedTemp(false, result_reg_class); 278a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegStorage t_reg2 = AllocTypedTemp(false, result_reg_class); 2791fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg1, true_val); 2801fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg2, false_val); 2812700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 2823da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(ccode, "E"); 2832700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, t_reg1); 2842700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, t_reg2); 2853da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 286f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } 287f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } else { 288f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // MOVE case 2891fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_true = mir_graph_->reg_location_[mir->ssa_rep->uses[1]]; 2901fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_false = mir_graph_->reg_location_[mir->ssa_rep->uses[2]]; 291a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_true = LoadValue(rl_true, result_reg_class); 292a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_false = LoadValue(rl_false, result_reg_class); 293a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_result = EvalLoc(rl_dest, result_reg_class, true); 2942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 2953da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = nullptr; 29600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (rl_result.reg.GetReg() == rl_true.reg.GetReg()) { // Is the "true" case already in place? 2973da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(NegateComparison(ccode), ""); 2982700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_false.reg); 29900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee } else if (rl_result.reg.GetReg() == rl_false.reg.GetReg()) { // False case in place? 3003da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(ccode, ""); 3012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_true.reg); 302252254b130067cd7a5071865e793966871ae0246buzbee } else { // Normal - select between the two. 3033da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(ccode, "E"); 3042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_true.reg); 3052700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_false.reg); 306252254b130067cd7a5071865e793966871ae0246buzbee } 3073da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 308f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } 3091fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 310f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee} 3114ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 3122ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenFusedLongCmpBranch(BasicBlock* bb, MIR* mir) { 3131fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src1 = mir_graph_->GetSrcWide(mir, 0); 3141fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src2 = mir_graph_->GetSrcWide(mir, 2); 3154ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Normalize such that if either operand is constant, src2 will be constant. 316a894607bca7eb623bc957363e4b36f44cfeea1b6Vladimir Marko ConditionCode ccode = mir->meta.ccode; 3174ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src1.is_const) { 31858af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko std::swap(rl_src1, rl_src2); 3194ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = FlipComparisonOrder(ccode); 3204ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 3214ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src2.is_const) { 322082833c8d577db0b2bebc100602f31e4e971613ebuzbee rl_src2 = UpdateLocWide(rl_src2); 3234ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Do special compare/branch against simple const operand if not already in registers. 3241fd3346740dfb7f47be9922312b68a4227fada96buzbee int64_t val = mir_graph_->ConstantValueWide(rl_src2); 325082833c8d577db0b2bebc100602f31e4e971613ebuzbee if ((rl_src2.location != kLocPhysReg) && 3264ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ((ModifiedImmediate(Low32Bits(val)) >= 0) && (ModifiedImmediate(High32Bits(val)) >= 0))) { 3271fd3346740dfb7f47be9922312b68a4227fada96buzbee GenFusedLongCmpImmBranch(bb, rl_src1, val, ccode); 3284ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return; 3294ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 3304ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 3310d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* taken = &block_label_list_[bb->taken]; 3320d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* not_taken = &block_label_list_[bb->fall_through]; 3331fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 3341fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValueWide(rl_src2, kCoreReg); 3352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetHigh(), rl_src2.reg.GetHigh()); 336df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (ccode) { 337efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondEq: 3381fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondNe, not_taken); 339efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 340efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondNe: 3411fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondNe, taken); 342efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 343efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondLt: 3441fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, taken); 3451fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, not_taken); 34658af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUlt; 347efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 348efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondLe: 3491fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, taken); 3501fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, not_taken); 351efc6369224b036a1fb77849f7ae65b3492c832c0buzbee ccode = kCondLs; 352efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 353efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondGt: 3541fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, taken); 3551fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, not_taken); 356efc6369224b036a1fb77849f7ae65b3492c832c0buzbee ccode = kCondHi; 357efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 358efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondGe: 3591fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, taken); 3601fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, not_taken); 36158af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUge; 362efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 363efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 364cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Unexpected ccode: " << ccode; 365efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 3662700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetLow(), rl_src2.reg.GetLow()); 3671fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(ccode, taken); 368efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 369efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 370efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 371efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Generate a register comparison to an immediate and branch. Caller 372efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * is responsible for setting branch target field. 373efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 3742700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpCmpImmBranch(ConditionCode cond, RegStorage reg, int check_value, LIR* target) { 3759522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe LIR* branch = nullptr; 376fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee ArmConditionCode arm_cond = ArmConditionEncoding(cond); 377b48819db07f9a0992a72173380c24249d7fc648abuzbee /* 378b48819db07f9a0992a72173380c24249d7fc648abuzbee * A common use of OpCmpImmBranch is for null checks, and using the Thumb 16-bit 379b48819db07f9a0992a72173380c24249d7fc648abuzbee * compare-and-branch if zero is ideal if it will reach. However, because null checks 3803a74d15ccc9a902874473ac9632e568b19b91b1cMingyao Yang * branch forward to a slow path, they will frequently not reach - and thus have to 381b48819db07f9a0992a72173380c24249d7fc648abuzbee * be converted to a long form during assembly (which will trigger another assembly 382b48819db07f9a0992a72173380c24249d7fc648abuzbee * pass). Here we estimate the branch distance for checks, and if large directly 383b48819db07f9a0992a72173380c24249d7fc648abuzbee * generate the long form in an attempt to avoid an extra assembly pass. 3843a74d15ccc9a902874473ac9632e568b19b91b1cMingyao Yang * TODO: consider interspersing slowpaths in code following unconditional branches. 385b48819db07f9a0992a72173380c24249d7fc648abuzbee */ 386b48819db07f9a0992a72173380c24249d7fc648abuzbee bool skip = ((target != NULL) && (target->opcode == kPseudoThrowTarget)); 387750359753444498d509a756fa9a042e9f3c432dfRazvan A Lupusoru skip &= ((mir_graph_->GetNumDalvikInsns() - current_dalvik_offset_) > 64); 3889522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe if (!skip && reg.Low8() && (check_value == 0)) { 3899522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe if (arm_cond == kArmCondEq || arm_cond == kArmCondNe) { 3909522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe branch = NewLIR2((arm_cond == kArmCondEq) ? kThumb2Cbz : kThumb2Cbnz, 3919522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe reg.GetReg(), 0); 3929522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe } else if (arm_cond == kArmCondLs) { 3939522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe // kArmCondLs is an unsigned less or equal. A comparison r <= 0 is then the same as cbz. 3949522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe // This case happens for a bounds check of array[0]. 3959522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe branch = NewLIR2(kThumb2Cbz, reg.GetReg(), 0); 3969522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe } 3979522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe } 3989522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe 3999522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe if (branch == nullptr) { 4002247984899247b1402408d39731ff64048f0e274Vladimir Marko OpRegImm(kOpCmp, reg, check_value); 4011fd3346740dfb7f47be9922312b68a4227fada96buzbee branch = NewLIR2(kThumbBCond, 0, arm_cond); 402efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 4039522af985466b2a05ef5cdede0808777dea7236eAndreas Gampe 404efc6369224b036a1fb77849f7ae65b3492c832c0buzbee branch->target = target; 405efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return branch; 406efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 40702031b185b4653e6c72e21f7a51238b903f6d638buzbee 4082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpRegCopyNoInsert(RegStorage r_dest, RegStorage r_src) { 409efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* res; 410efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int opcode; 4112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee // If src or dest is a pair, we'll be using low reg. 4122700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (r_dest.IsPair()) { 4132700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_dest = r_dest.GetLow(); 4142700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee } 4152700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (r_src.IsPair()) { 4162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_src = r_src.GetLow(); 4172700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee } 418091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.IsFloat() || r_src.IsFloat()) 4191fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpFpRegCopy(r_dest, r_src); 420091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_dest.Low8() && r_src.Low8()) 421efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR; 422091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee else if (!r_dest.Low8() && !r_src.Low8()) 423efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_H2H; 424091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee else if (r_dest.Low8()) 425efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_H2L; 426efc6369224b036a1fb77849f7ae65b3492c832c0buzbee else 427efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_L2H; 4282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = RawLIR(current_dalvik_offset_, opcode, r_dest.GetReg(), r_src.GetReg()); 4291fd3346740dfb7f47be9922312b68a4227fada96buzbee if (!(cu_->disable_opt & (1 << kSafeOptimizations)) && r_dest == r_src) { 430fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee res->flags.is_nop = true; 431efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 432efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return res; 433efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 434efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4357a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbeevoid ArmMir2Lir::OpRegCopy(RegStorage r_dest, RegStorage r_src) { 4367a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (r_dest != r_src) { 4377a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee LIR* res = OpRegCopyNoInsert(r_dest, r_src); 4387a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee AppendLIR(res); 4397a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee } 440efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 441efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4422700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeevoid ArmMir2Lir::OpRegCopyWide(RegStorage r_dest, RegStorage r_src) { 4437a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (r_dest != r_src) { 444091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool dest_fp = r_dest.IsFloat(); 445091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool src_fp = r_src.IsFloat(); 446091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(r_dest.Is64Bit()); 447091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(r_src.Is64Bit()); 4485667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu // Note: If the register is get by register allocator, it should never be a pair. 4495667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu // But some functions in mir_2_lir assume 64-bit registers are 32-bit register pairs. 4505667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu // TODO: Rework Mir2Lir::LoadArg() and Mir2Lir::LoadArgDirect(). 4515667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu if (dest_fp && r_dest.IsPair()) { 4525667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu r_dest = As64BitFloatReg(r_dest); 4535667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu } 4545667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu if (src_fp && r_src.IsPair()) { 4555667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu r_src = As64BitFloatReg(r_src); 4565667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu } 4577a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (dest_fp) { 4587a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (src_fp) { 459091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee OpRegCopy(r_dest, r_src); 4607a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee } else { 461091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee NewLIR3(kThumb2Fmdrr, r_dest.GetReg(), r_src.GetLowReg(), r_src.GetHighReg()); 4627a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee } 463efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 4647a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (src_fp) { 465091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee NewLIR3(kThumb2Fmrrd, r_dest.GetLowReg(), r_dest.GetHighReg(), r_src.GetReg()); 466efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 4677a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee // Handle overlap 4687a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee if (r_src.GetHighReg() == r_dest.GetLowReg()) { 4697a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee DCHECK_NE(r_src.GetLowReg(), r_dest.GetHighReg()); 4707a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee OpRegCopy(r_dest.GetHigh(), r_src.GetHigh()); 4717a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee OpRegCopy(r_dest.GetLow(), r_src.GetLow()); 4727a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee } else { 4737a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee OpRegCopy(r_dest.GetLow(), r_src.GetLow()); 4747a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee OpRegCopy(r_dest.GetHigh(), r_src.GetHigh()); 4757a11ab09f93f54b1c07c0bf38dd65ed322e86bc6buzbee } 476efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 477efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 478efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 479efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 480efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 481efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Table of magic divisors 482efc6369224b036a1fb77849f7ae65b3492c832c0buzbeestruct MagicTable { 483efc6369224b036a1fb77849f7ae65b3492c832c0buzbee uint32_t magic; 484efc6369224b036a1fb77849f7ae65b3492c832c0buzbee uint32_t shift; 485efc6369224b036a1fb77849f7ae65b3492c832c0buzbee DividePattern pattern; 486efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 487efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 488fa57c47f1b72916371a9c2d5c1389219bce655b4buzbeestatic const MagicTable magic_table[] = { 489efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 0 490efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 1 491efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 2 492efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x55555556, 0, Divide3}, // 3 493efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 4 494efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x66666667, 1, Divide5}, // 5 495efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2AAAAAAB, 0, Divide3}, // 6 496efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x92492493, 2, Divide7}, // 7 497efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 8 498efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x38E38E39, 1, Divide5}, // 9 499efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x66666667, 2, Divide5}, // 10 500efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2E8BA2E9, 1, Divide5}, // 11 501efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2AAAAAAB, 1, Divide5}, // 12 502efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x4EC4EC4F, 2, Divide5}, // 13 503efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x92492493, 3, Divide7}, // 14 504efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x88888889, 3, Divide7}, // 15 505efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 506efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 507efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Integer division by constant via reciprocal multiply (Hacker's Delight, 10-4) 50811b63d13f0a3be0f74390b66b58614a37f9aa6c1buzbeebool ArmMir2Lir::SmallLiteralDivRem(Instruction::Code dalvik_opcode, bool is_div, 5092ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src, RegLocation rl_dest, int lit) { 5106a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(dalvik_opcode); 511fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if ((lit < 0) || (lit >= static_cast<int>(sizeof(magic_table)/sizeof(magic_table[0])))) { 512efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return false; 513efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 514fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee DividePattern pattern = magic_table[lit].pattern; 515efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (pattern == DivideNone) { 516efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return false; 517efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 518efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 5192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_magic = AllocTemp(); 5201fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(r_magic, magic_table[lit].magic); 5211fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, kCoreReg); 5221fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 5232700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_hi = AllocTemp(); 5242700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_lo = AllocTemp(); 525f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 526f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // rl_dest and rl_src might overlap. 527f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // Reuse r_hi to save the div result for reminder case. 528f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu RegStorage r_div_result = is_div ? rl_result.reg : r_hi; 529f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 5302700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Smull, r_lo.GetReg(), r_hi.GetReg(), r_magic.GetReg(), rl_src.reg.GetReg()); 531df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (pattern) { 532efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide3: 533f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpSub, r_div_result, r_hi, rl_src.reg, EncodeShift(kArmAsr, 31)); 534efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 535efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide5: 5362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, r_lo, rl_src.reg, 31); 537f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpRsub, r_div_result, r_lo, r_hi, 538e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers EncodeShift(kArmAsr, magic_table[lit].shift)); 539efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 540efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide7: 5412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpAdd, r_hi, rl_src.reg); 5422700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, r_lo, rl_src.reg, 31); 543f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpRsub, r_div_result, r_lo, r_hi, 544e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers EncodeShift(kArmAsr, magic_table[lit].shift)); 545efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 546efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 547cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Unexpected pattern: " << pattern; 548efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 549f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 550f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu if (!is_div) { 551f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // div_result = src / lit 552f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // tmp1 = div_result * lit 553f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // dest = src - tmp1 554f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu RegStorage tmp1 = r_lo; 555f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu EasyMultiplyOp ops[2]; 556f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 557f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu bool canEasyMultiply = GetEasyMultiplyTwoOps(lit, ops); 558f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu DCHECK_NE(canEasyMultiply, false); 559f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 560f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu GenEasyMultiplyTwoOps(tmp1, r_div_result, ops); 561f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegReg(kOpSub, rl_result.reg, rl_src.reg, tmp1); 562f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu } 563f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 5641fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 565efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 566efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 567efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 568e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers// Try to convert *lit to 1 RegRegRegShift/RegRegShift form. 569e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersbool ArmMir2Lir::GetEasyMultiplyOp(int lit, ArmMir2Lir::EasyMultiplyOp* op) { 570e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (IsPowerOfTwo(lit)) { 571e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpLsl; 572e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->shift = LowestSetBit(lit); 573e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 574e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 575e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 576e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (IsPowerOfTwo(lit - 1)) { 577e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpAdd; 578e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->shift = LowestSetBit(lit - 1); 579e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 580e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 581e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 582e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (IsPowerOfTwo(lit + 1)) { 583e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpRsub; 584e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->shift = LowestSetBit(lit + 1); 585e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 586e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 587e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 588e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpInvalid; 589f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu op->shift = 0; 590e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return false; 591e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 592e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 593e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers// Try to convert *lit to 1~2 RegRegRegShift/RegRegShift forms. 594e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersbool ArmMir2Lir::GetEasyMultiplyTwoOps(int lit, EasyMultiplyOp* ops) { 595e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers GetEasyMultiplyOp(lit, &ops[0]); 596e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit, &ops[0])) { 597e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpInvalid; 598f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu ops[1].shift = 0; 599e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 600e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 601e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 602e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers int lit1 = lit; 603e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers uint32_t shift = LowestSetBit(lit1); 604e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit1 >> shift, &ops[0])) { 605e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpLsl; 606e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].shift = shift; 607e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 608e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 609e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 610e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers lit1 = lit - 1; 611e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers shift = LowestSetBit(lit1); 612e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit1 >> shift, &ops[0])) { 613e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpAdd; 614e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].shift = shift; 615e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 616e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 617e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 618e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers lit1 = lit + 1; 619e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers shift = LowestSetBit(lit1); 620e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit1 >> shift, &ops[0])) { 621e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpRsub; 622e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].shift = shift; 623e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 624e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 625e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 626e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return false; 627e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 628e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 629f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu// Generate instructions to do multiply. 630f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu// Additional temporary register is required, 631f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu// if it need to generate 2 instructions and src/dest overlap. 632e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersvoid ArmMir2Lir::GenEasyMultiplyTwoOps(RegStorage r_dest, RegStorage r_src, EasyMultiplyOp* ops) { 633f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // tmp1 = ( src << shift1) + [ src | -src | 0 ] 634f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu // dest = (tmp1 << shift2) + [ src | -src | 0 ] 635f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 636f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu RegStorage r_tmp1; 637f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu if (ops[1].op == kOpInvalid) { 638f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu r_tmp1 = r_dest; 639f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu } else if (r_dest.GetReg() != r_src.GetReg()) { 640f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu r_tmp1 = r_dest; 641f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu } else { 642f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu r_tmp1 = AllocTemp(); 643f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu } 644f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 645f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu switch (ops[0].op) { 646e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers case kOpLsl: 647f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegImm(kOpLsl, r_tmp1, r_src, ops[0].shift); 648e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 649e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers case kOpAdd: 650f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpAdd, r_tmp1, r_src, r_src, EncodeShift(kArmLsl, ops[0].shift)); 651e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 652e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers case kOpRsub: 653f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpRsub, r_tmp1, r_src, r_src, EncodeShift(kArmLsl, ops[0].shift)); 654e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 655e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers default: 656f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu DCHECK_EQ(ops[0].op, kOpInvalid); 657f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu break; 658f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu } 659f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu 660f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu switch (ops[1].op) { 661f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu case kOpInvalid: 662f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu return; 663f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu case kOpLsl: 664f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegImm(kOpLsl, r_dest, r_tmp1, ops[1].shift); 665f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu break; 666f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu case kOpAdd: 667f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpAdd, r_dest, r_src, r_tmp1, EncodeShift(kArmLsl, ops[1].shift)); 668f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu break; 669f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu case kOpRsub: 670f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu OpRegRegRegShift(kOpRsub, r_dest, r_src, r_tmp1, EncodeShift(kArmLsl, ops[1].shift)); 671f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu break; 672f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu default: 673f9719f9abbea060e086fe1304d72be50cbc8808eZheng Xu LOG(FATAL) << "Unexpected opcode passed to GenEasyMultiplyTwoOps"; 674e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 675e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 676e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 677e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 678e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersbool ArmMir2Lir::EasyMultiply(RegLocation rl_src, RegLocation rl_dest, int lit) { 679e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers EasyMultiplyOp ops[2]; 680e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 681e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (!GetEasyMultiplyTwoOps(lit, ops)) { 682e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return false; 683e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 684e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 685e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers rl_src = LoadValue(rl_src, kCoreReg); 686e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 687e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 688e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers GenEasyMultiplyTwoOps(rl_result.reg, rl_src.reg, ops); 689e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers StoreValue(rl_dest, rl_result); 690e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 691e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 692e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 6932bf31e67694da24a19fc1f328285cebb1a4b9964Mark MendellRegLocation ArmMir2Lir::GenDivRem(RegLocation rl_dest, RegLocation rl_src1, 6946a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers RegLocation rl_src2, bool is_div, int flags) { 6956a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(rl_dest, rl_src1, rl_src2, is_div, flags); 6962bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell LOG(FATAL) << "Unexpected use of GenDivRem for Arm"; 6976a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNREACHABLE(); 6982bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell} 6992bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell 7006a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan RogersRegLocation ArmMir2Lir::GenDivRemLit(RegLocation rl_dest, RegLocation rl_src1, int lit, 7016a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers bool is_div) { 7026a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(rl_dest, rl_src1, lit, is_div); 7032bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell LOG(FATAL) << "Unexpected use of GenDivRemLit for Arm"; 7046a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNREACHABLE(); 7052bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell} 7062bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell 7072700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeRegLocation ArmMir2Lir::GenDivRemLit(RegLocation rl_dest, RegStorage reg1, int lit, bool is_div) { 7087020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 7097020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 7107020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Put the literal in a temp. 7112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage lit_temp = AllocTemp(); 7127020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison LoadConstant(lit_temp, lit); 7137020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Use the generic case for div/rem with arg2 in a register. 7147020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // TODO: The literal temp can be freed earlier during a modulus to reduce reg pressure. 7157020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison rl_result = GenDivRem(rl_result, reg1, lit_temp, is_div); 7167020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison FreeTemp(lit_temp); 7177020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 7187020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison return rl_result; 719efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 720efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeRegLocation ArmMir2Lir::GenDivRem(RegLocation rl_dest, RegStorage reg1, RegStorage reg2, 7222ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom bool is_div) { 7237020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 7247020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison if (is_div) { 7257020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Simple case, use sdiv instruction. 7262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpDiv, rl_result.reg, reg1, reg2); 7277020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison } else { 7287020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Remainder case, use the following code: 7297020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // temp = reg1 / reg2 - integer division 7307020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // temp = temp * reg2 7317020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // dest = reg1 - temp 7327020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 7332700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage temp = AllocTemp(); 7347020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison OpRegRegReg(kOpDiv, temp, reg1, reg2); 7357020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison OpRegReg(kOpMul, temp, reg2); 7362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg, reg1, temp); 7377020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison FreeTemp(temp); 7387020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison } 7397020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 7407020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison return rl_result; 741efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 742efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 74323abec955e2e733999a1e2c30e4e384e46e5dde4Serban Constantinescubool ArmMir2Lir::GenInlinedMinMax(CallInfo* info, bool is_min, bool is_long) { 7441fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK_EQ(cu_->instruction_set, kThumb2); 74523abec955e2e733999a1e2c30e4e384e46e5dde4Serban Constantinescu if (is_long) { 74623abec955e2e733999a1e2c30e4e384e46e5dde4Serban Constantinescu return false; 74723abec955e2e733999a1e2c30e4e384e46e5dde4Serban Constantinescu } 748fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee RegLocation rl_src1 = info->args[0]; 749fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee RegLocation rl_src2 = info->args[1]; 7501fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValue(rl_src1, kCoreReg); 7511fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValue(rl_src2, kCoreReg); 7521fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = InlineTarget(info); 7531fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 7542700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg, rl_src2.reg); 7553da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT((is_min) ? kCondGt : kCondLt, "E"); 7562700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpMov, rl_result.reg, rl_src2.reg); 7572700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpMov, rl_result.reg, rl_src1.reg); 7583da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); 7591fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 760efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 761efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 762efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 763e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Markobool ArmMir2Lir::GenInlinedPeek(CallInfo* info, OpSize size) { 764e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_address = info->args[0]; // long address 7652700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_address = NarrowRegLoc(rl_src_address); // ignore high half in info->args[1] 766e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_dest = InlineTarget(info); 767e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_address = LoadValue(rl_src_address, kCoreReg); 768e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 769695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee if (size == k64) { 770e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Fake unaligned LDRD by two unaligned LDR instructions on ARMv7 with SCTLR.A set to 0. 7712700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (rl_address.reg.GetReg() != rl_result.reg.GetLowReg()) { 772695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_address.reg, 0, rl_result.reg.GetLow()); 773695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_address.reg, 4, rl_result.reg.GetHigh()); 774e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 775695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_address.reg, 4, rl_result.reg.GetHigh()); 776695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_address.reg, 0, rl_result.reg.GetLow()); 777e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 778e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko StoreValueWide(rl_dest, rl_result); 779e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 780695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee DCHECK(size == kSignedByte || size == kSignedHalf || size == k32); 781e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Unaligned load with LDR and LDRSH is allowed on ARMv7 with SCTLR.A set to 0. 7823c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe LoadBaseDisp(rl_address.reg, 0, rl_result.reg, size, kNotVolatile); 783e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko StoreValue(rl_dest, rl_result); 784e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 785e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko return true; 786e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko} 787e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko 788e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Markobool ArmMir2Lir::GenInlinedPoke(CallInfo* info, OpSize size) { 789e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_address = info->args[0]; // long address 7902700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_address = NarrowRegLoc(rl_src_address); // ignore high half in info->args[1] 791e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_value = info->args[2]; // [size] value 792e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_address = LoadValue(rl_src_address, kCoreReg); 793695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee if (size == k64) { 794e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Fake unaligned STRD by two unaligned STR instructions on ARMv7 with SCTLR.A set to 0. 795e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_value = LoadValueWide(rl_src_value, kCoreReg); 7963c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe StoreBaseDisp(rl_address.reg, 0, rl_value.reg.GetLow(), k32, kNotVolatile); 7973c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe StoreBaseDisp(rl_address.reg, 4, rl_value.reg.GetHigh(), k32, kNotVolatile); 798e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 799695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee DCHECK(size == kSignedByte || size == kSignedHalf || size == k32); 800e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Unaligned store with STR and STRSH is allowed on ARMv7 with SCTLR.A set to 0. 801e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_value = LoadValue(rl_src_value, kCoreReg); 8023c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe StoreBaseDisp(rl_address.reg, 0, rl_value.reg, size, kNotVolatile); 803e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 804e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko return true; 805e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko} 806e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko 80748f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm// Generate a CAS with memory_order_seq_cst semantics. 8081c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Markobool ArmMir2Lir::GenInlinedCas(CallInfo* info, bool is_long, bool is_object) { 8091fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK_EQ(cu_->instruction_set, kThumb2); 810fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee // Unused - RegLocation rl_src_unsafe = info->args[0]; 8111c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_obj = info->args[1]; // Object - known non-null 8121c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_offset = info->args[2]; // long low 8132700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_offset = NarrowRegLoc(rl_src_offset); // ignore high half in info->args[3] 8141c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_expected = info->args[4]; // int, long or Object 8153e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // If is_long, high half is in info->args[5] 8163e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_src_new_value = info->args[is_long ? 6 : 5]; // int, long or Object 8173e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // If is_long, high half is in info->args[7] 8181fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = InlineTarget(info); // boolean place for result 819efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8203e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // We have only 5 temporary registers available and actually only 4 if the InlineTarget 8213e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // above locked one of the temps. For a straightforward CAS64 we need 7 registers: 8223e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // r_ptr (1), new_value (2), expected(2) and ldrexd result (2). If neither expected nor 8233e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // new_value is in a non-temp core register we shall reload them in the ldrex/strex loop 8243e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // into the same temps, reducing the number of required temps down to 5. We shall work 8253e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // around the potentially locked temp by using LR for r_ptr, unconditionally. 8263e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // TODO: Pass information about the need for more temps to the stack frame generation 8273e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // code so that we can rely on being able to allocate enough temps. 828091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee DCHECK(!GetRegInfo(rs_rARM_LR)->IsTemp()); 829091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee MarkTemp(rs_rARM_LR); 830091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rs_rARM_LR); 831091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee LockTemp(rs_rARM_LR); 8323e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko bool load_early = true; 8333e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (is_long) { 834091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegStorage expected_reg = rl_src_expected.reg.IsPair() ? rl_src_expected.reg.GetLow() : 835091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee rl_src_expected.reg; 836091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegStorage new_val_reg = rl_src_new_value.reg.IsPair() ? rl_src_new_value.reg.GetLow() : 837091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee rl_src_new_value.reg; 838091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool expected_is_core_reg = rl_src_expected.location == kLocPhysReg && !expected_reg.IsFloat(); 839091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee bool new_value_is_core_reg = rl_src_new_value.location == kLocPhysReg && !new_val_reg.IsFloat(); 8402700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool expected_is_good_reg = expected_is_core_reg && !IsTemp(expected_reg); 8412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool new_value_is_good_reg = new_value_is_core_reg && !IsTemp(new_val_reg); 8423e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 8433e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!expected_is_good_reg && !new_value_is_good_reg) { 8443e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // None of expected/new_value is non-temp reg, need to load both late 8453e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko load_early = false; 8463e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Make sure they are not in the temp regs and the load will not be skipped. 8473e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (expected_is_core_reg) { 8482700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FlushRegWide(rl_src_expected.reg); 8493e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(rl_src_expected.s_reg_low); 8503e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(GetSRegHi(rl_src_expected.s_reg_low)); 8513e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_src_expected.location = kLocDalvikFrame; 8523e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8533e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (new_value_is_core_reg) { 8542700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FlushRegWide(rl_src_new_value.reg); 8553e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(rl_src_new_value.s_reg_low); 8563e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(GetSRegHi(rl_src_new_value.s_reg_low)); 8573e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_src_new_value.location = kLocDalvikFrame; 8583e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8593e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8603e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 861efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 86248f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm // Prevent reordering with prior memory operations. 86348f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm GenMemBarrier(kAnyStore); 864efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 865a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegLocation rl_object = LoadValue(rl_src_obj, kRefReg); 8663e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_new_value; 8673e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!is_long) { 8687c02e918e752ab36f0b6cab7528f10c0cf55a4eebuzbee rl_new_value = LoadValue(rl_src_new_value, LocToRegClass(rl_src_new_value)); 8693e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else if (load_early) { 8703e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_new_value = LoadValueWide(rl_src_new_value, kCoreReg); 8713e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 872efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8731c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko if (is_object && !mir_graph_->IsConstantNullRef(rl_new_value)) { 874efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Mark card for object assuming new value is stored. 875743b98cd3d7db1cfd6b3d7f7795e8abd9d07a42dVladimir Marko MarkGCCard(0, rl_new_value.reg, rl_object.reg); 876efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 877efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8781fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_offset = LoadValue(rl_src_offset, kCoreReg); 879efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8802700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_ptr = rs_rARM_LR; 8812700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdd, r_ptr, rl_object.reg, rl_offset.reg); 882efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 883fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee // Free now unneeded rl_object and rl_offset to give more temps. 8841fd3346740dfb7f47be9922312b68a4227fada96buzbee ClobberSReg(rl_object.s_reg_low); 885091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rl_object.reg); 8861fd3346740dfb7f47be9922312b68a4227fada96buzbee ClobberSReg(rl_offset.s_reg_low); 887091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rl_offset.reg); 888efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8893e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_expected; 8903e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!is_long) { 8917c02e918e752ab36f0b6cab7528f10c0cf55a4eebuzbee rl_expected = LoadValue(rl_src_expected, LocToRegClass(rl_src_new_value)); 8923e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else if (load_early) { 8933e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_expected = LoadValueWide(rl_src_expected, kCoreReg); 8943e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 89500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee // NOTE: partially defined rl_expected & rl_new_value - but we just want the regs. 896091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegStorage low_reg = AllocTemp(); 897091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegStorage high_reg = AllocTemp(); 898091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee rl_new_value.reg = RegStorage::MakeRegPair(low_reg, high_reg); 89900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee rl_expected = rl_new_value; 9003e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 9013e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 9023e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // do { 9033e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // tmp = [r_ptr] - expected; 9043e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // } while (tmp == 0 && failure([r_ptr] <- r_new_value)); 9053e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // result = tmp != 0; 906efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 9072700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_tmp = AllocTemp(); 9082de2aa1a96dfa5bebc004f29b5dbfafd37039ceeJeff Hao LIR* target = NewLIR0(kPseudoTargetLabel); 9093e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 9103da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = nullptr; 9113e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (is_long) { 9122700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_tmp_high = AllocTemp(); 9133e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 9142700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadValueDirectWide(rl_src_expected, rl_expected.reg); 9153e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 9162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Ldrexd, r_tmp.GetReg(), r_tmp_high.GetReg(), r_ptr.GetReg()); 9172700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp, rl_expected.reg.GetLow()); 9182700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp_high, rl_expected.reg.GetHigh()); 9193e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 9202700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadValueDirectWide(rl_src_new_value, rl_new_value.reg); 9213e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 9223e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Make sure we use ORR that sets the ccode 923091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee if (r_tmp.Low8() && r_tmp_high.Low8()) { 9242700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR2(kThumbOrr, r_tmp.GetReg(), r_tmp_high.GetReg()); 9253e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 9262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, r_tmp.GetReg(), r_tmp.GetReg(), r_tmp_high.GetReg(), 0); 9273e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 9283e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko FreeTemp(r_tmp_high); // Now unneeded 9293e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 9308dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 9313da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(kCondEq, "T"); 9322700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Strexd /* eq */, r_tmp.GetReg(), rl_new_value.reg.GetLowReg(), rl_new_value.reg.GetHighReg(), r_ptr.GetReg()); 9333e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 9343e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 9352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Ldrex, r_tmp.GetReg(), r_ptr.GetReg(), 0); 9362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp, rl_expected.reg); 9378dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 9383da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(kCondEq, "T"); 9392700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Strex /* eq */, r_tmp.GetReg(), rl_new_value.reg.GetReg(), r_ptr.GetReg(), 0); 9403e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 9413e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 9423e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Still one conditional left from OpIT(kCondEq, "T") from either branch 9433e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko OpRegImm(kOpCmp /* eq */, r_tmp, 1); 9443da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); 94543a065ce1dda78e963868f9753a6e263721af927Dave Allison 9462de2aa1a96dfa5bebc004f29b5dbfafd37039ceeJeff Hao OpCondBranch(kCondEq, target); 947efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 9483e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 9492700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FreeTemp(rl_expected.reg); // Now unneeded. 9503e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 9513e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 95248f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm // Prevent reordering with subsequent memory operations. 95348f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm GenMemBarrier(kLoadAny); 95448f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm 9553e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // result := (tmp1 != 0) ? 0 : 1; 9563e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 9572700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpRsub, rl_result.reg, r_tmp, 1); 9588dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 9593da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(kCondUlt, ""); 9602700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, 0); /* cc */ 9613e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko FreeTemp(r_tmp); // Now unneeded. 9623da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Barrier to terminate OpIT. 9633e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 9641fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 965efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 9663e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Now, restore lr to its non-temp status. 967091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee Clobber(rs_rARM_LR); 968091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee UnmarkTemp(rs_rARM_LR); 969efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 970efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 971efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 972947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xubool ArmMir2Lir::GenInlinedArrayCopyCharArray(CallInfo* info) { 973947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu constexpr int kLargeArrayThreshold = 256; 974947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 975947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegLocation rl_src = info->args[0]; 976947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegLocation rl_src_pos = info->args[1]; 977947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegLocation rl_dst = info->args[2]; 978947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegLocation rl_dst_pos = info->args[3]; 979947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegLocation rl_length = info->args[4]; 980947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Compile time check, handle exception by non-inline method to reduce related meta-data. 981947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu if ((rl_src_pos.is_const && (mir_graph_->ConstantValue(rl_src_pos) < 0)) || 982947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu (rl_dst_pos.is_const && (mir_graph_->ConstantValue(rl_dst_pos) < 0)) || 983947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu (rl_length.is_const && (mir_graph_->ConstantValue(rl_length) < 0))) { 984947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu return false; 985947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu } 986947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 987947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu ClobberCallerSave(); 988947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LockCallTemps(); // Prepare for explicit register usage. 989947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LockTemp(rs_r12); 990947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_src = rs_r0; 991947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_dst = rs_r1; 992947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_src, rs_src); 993947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_dst, rs_dst); 994947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 995947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Handle null pointer exception in slow-path. 996947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* src_check_branch = OpCmpImmBranch(kCondEq, rs_src, 0, nullptr); 997947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* dst_check_branch = OpCmpImmBranch(kCondEq, rs_dst, 0, nullptr); 998947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Handle potential overlapping in slow-path. 999947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* src_dst_same = OpCmpBranch(kCondEq, rs_src, rs_dst, nullptr); 1000947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Handle exception or big length in slow-path. 1001947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_length = rs_r2; 1002947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_length, rs_length); 1003947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* len_neg_or_too_big = OpCmpImmBranch(kCondHi, rs_length, kLargeArrayThreshold, nullptr); 1004947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Src bounds check. 1005947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_pos = rs_r3; 1006947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_arr_length = rs_r12; 1007947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_src_pos, rs_pos); 1008947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* src_pos_negative = OpCmpImmBranch(kCondLt, rs_pos, 0, nullptr); 1009947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu Load32Disp(rs_src, mirror::Array::LengthOffset().Int32Value(), rs_arr_length); 1010947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpSub, rs_arr_length, rs_pos); 1011947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* src_bad_len = OpCmpBranch(kCondLt, rs_arr_length, rs_length, nullptr); 1012947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Dst bounds check. 1013947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_dst_pos, rs_pos); 1014947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* dst_pos_negative = OpCmpImmBranch(kCondLt, rs_pos, 0, nullptr); 1015947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu Load32Disp(rs_dst, mirror::Array::LengthOffset().Int32Value(), rs_arr_length); 1016947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpSub, rs_arr_length, rs_pos); 1017947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* dst_bad_len = OpCmpBranch(kCondLt, rs_arr_length, rs_length, nullptr); 1018947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1019947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Everything is checked now. 1020947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegImm(kOpAdd, rs_dst, mirror::Array::DataOffset(2).Int32Value()); 1021947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpAdd, rs_dst, rs_pos); 1022947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpAdd, rs_dst, rs_pos); 1023947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegImm(kOpAdd, rs_src, mirror::Array::DataOffset(2).Int32Value()); 1024947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadValueDirectFixed(rl_src_pos, rs_pos); 1025947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpAdd, rs_src, rs_pos); 1026947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegReg(kOpAdd, rs_src, rs_pos); 1027947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1028947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu RegStorage rs_tmp = rs_pos; 1029947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegRegImm(kOpLsl, rs_length, rs_length, 1); 1030947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1031947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Copy one element. 1032947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegRegImm(kOpAnd, rs_tmp, rs_length, 2); 1033947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* jmp_to_begin_loop = OpCmpImmBranch(kCondEq, rs_tmp, 0, nullptr); 1034947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegImm(kOpSub, rs_length, 2); 1035947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadBaseIndexed(rs_src, rs_length, rs_tmp, 0, kSignedHalf); 1036947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu StoreBaseIndexed(rs_dst, rs_length, rs_tmp, 0, kSignedHalf); 1037947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1038947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu // Copy two elements. 1039947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR *begin_loop = NewLIR0(kPseudoTargetLabel); 1040947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* jmp_to_ret = OpCmpImmBranch(kCondEq, rs_length, 0, nullptr); 1041947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpRegImm(kOpSub, rs_length, 4); 1042947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LoadBaseIndexed(rs_src, rs_length, rs_tmp, 0, k32); 1043947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu StoreBaseIndexed(rs_dst, rs_length, rs_tmp, 0, k32); 1044947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu OpUnconditionalBranch(begin_loop); 1045947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1046947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR *check_failed = NewLIR0(kPseudoTargetLabel); 1047947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* launchpad_branch = OpUnconditionalBranch(nullptr); 1048947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu LIR* return_point = NewLIR0(kPseudoTargetLabel); 1049947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1050947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu src_check_branch->target = check_failed; 1051947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu dst_check_branch->target = check_failed; 1052947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu src_dst_same->target = check_failed; 1053947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu len_neg_or_too_big->target = check_failed; 1054947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu src_pos_negative->target = check_failed; 1055947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu src_bad_len->target = check_failed; 1056947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu dst_pos_negative->target = check_failed; 1057947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu dst_bad_len->target = check_failed; 1058947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu jmp_to_begin_loop->target = begin_loop; 1059947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu jmp_to_ret->target = return_point; 1060947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1061947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu AddIntrinsicSlowPath(info, launchpad_branch, return_point); 10629863daf4fdc1a08339edac794452dbc719aef4f1Serguei Katkov ClobberCallerSave(); // We must clobber everything because slow path will return here 1063947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 1064947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu return true; 1065947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu} 1066947717a2b085f36ea007ac64f728e19ff1c8db0bZheng Xu 10672700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpPcRelLoad(RegStorage reg, LIR* target) { 10682700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return RawLIR(current_dalvik_offset_, kThumb2LdrPcRel12, reg.GetReg(), 0, 0, 0, 0, target); 1069efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1070efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 10712700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpVldm(RegStorage r_base, int count) { 1072091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee return NewLIR3(kThumb2Vldms, r_base.GetReg(), rs_fr0.GetReg(), count); 1073efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1074efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 10752700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpVstm(RegStorage r_base, int count) { 1076091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee return NewLIR3(kThumb2Vstms, r_base.GetReg(), rs_fr0.GetReg(), count); 1077efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1078efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 10791fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenMultiplyByTwoBitMultiplier(RegLocation rl_src, 108002031b185b4653e6c72e21f7a51238b903f6d638buzbee RegLocation rl_result, int lit, 10812ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom int first_bit, int second_bit) { 10826a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(lit); 1083e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, rl_result.reg, rl_src.reg, rl_src.reg, 1084fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee EncodeShift(kArmLsl, second_bit - first_bit)); 1085fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (first_bit != 0) { 10862700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg, rl_result.reg, first_bit); 1087efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 1088efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1089efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1090e643a179cf5585ba6bafdd4fa51730d9f50c06f6Mingyao Yangvoid ArmMir2Lir::GenDivZeroCheckWide(RegStorage reg) { 10912700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(reg.IsPair()); // TODO: support k64BitSolo. 10922700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 10932700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, t_reg.GetReg(), reg.GetLowReg(), reg.GetHighReg(), 0); 10941fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 1095e643a179cf5585ba6bafdd4fa51730d9f50c06f6Mingyao Yang GenDivZeroCheck(kCondEq); 1096efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1097efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1098efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Test suspend flag, return target of taken suspend branch 10992ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* ArmMir2Lir::OpTestSuspend(LIR* target) { 110004f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin#ifdef ARM_R4_SUSPEND_FLAG 1101091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee NewLIR2(kThumbSubRI8, rs_rARM_SUSPEND.GetReg(), 1); 11021fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpCondBranch((target == NULL) ? kCondEq : kCondNe, target); 110304f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin#else 110404f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin RegStorage t_reg = AllocTemp(); 110504f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin LoadBaseDisp(rs_rARM_SELF, Thread::ThreadFlagsOffset<4>().Int32Value(), 11068ba17f6ce3853d4bdeee7527c9900e018781cf24Ian Rogers t_reg, kUnsignedHalf, kNotVolatile); 110704f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin LIR* cmp_branch = OpCmpImmBranch((target == NULL) ? kCondNe : kCondEq, t_reg, 110804f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin 0, target); 110904f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin FreeTemp(t_reg); 111004f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin return cmp_branch; 111104f4d8abe45d6e79eca983e057de76aea24b7df9Wei Jin#endif 1112efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1113efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1114efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Decrement register and branch on condition 11152700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpDecAndBranch(ConditionCode c_code, RegStorage reg, LIR* target) { 1116efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Combine sub & test using sub setflags encoding here 1117dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko OpRegRegImm(kOpSub, reg, reg, 1); // For value == 1, this should set flags. 11188dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask->HasBit(ResourceMask::kCCode)); 11191fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpCondBranch(c_code, target); 1120efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1121efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1122b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampebool ArmMir2Lir::GenMemBarrier(MemBarrierKind barrier_kind) { 11238366ca0d7ba3b80a2d5be65ba436446cc32440bdElliott Hughes if (!cu_->GetInstructionSetFeatures()->IsSmp()) { 11248366ca0d7ba3b80a2d5be65ba436446cc32440bdElliott Hughes return false; 11258366ca0d7ba3b80a2d5be65ba436446cc32440bdElliott Hughes } 112699ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // Start off with using the last LIR as the barrier. If it is not enough, then we will generate one. 112799ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru LIR* barrier = last_lir_insn_; 112899ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 1129fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int dmb_flavor; 11301bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee // TODO: revisit Arm barrier kinds 1131fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee switch (barrier_kind) { 113248f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm case kAnyStore: dmb_flavor = kISH; break; 113348f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm case kLoadAny: dmb_flavor = kISH; break; 1134b122a4bbed34ab22b4c1541ee25e5cf22f12a926Ian Rogers case kStoreStore: dmb_flavor = kISHST; break; 113548f5c47907654350ce30a8dfdda0e977f5d3d39fHans Boehm case kAnyAny: dmb_flavor = kISH; break; 11361bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee default: 1137fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(FATAL) << "Unexpected MemBarrierKind: " << barrier_kind; 1138fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee dmb_flavor = kSY; // quiet gcc. 11391bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee break; 11401bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee } 114199ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 1142b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe bool ret = false; 1143b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe 114499ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // If the same barrier already exists, don't generate another. 114599ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru if (barrier == nullptr 114699ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru || (barrier != nullptr && (barrier->opcode != kThumb2Dmb || barrier->operands[0] != dmb_flavor))) { 114799ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru barrier = NewLIR1(kThumb2Dmb, dmb_flavor); 1148b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe ret = true; 114999ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru } 115099ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 115199ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // At this point we must have a memory barrier. Mark it as a scheduling barrier as well. 115299ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru DCHECK(!barrier->flags.use_def_invalid); 11538dea81ca9c0201ceaa88086b927a5838a06a3e69Vladimir Marko barrier->u.m.def_mask = &kEncodeAll; 1154b14329f90f725af0f67c45dfcb94933a426d63ceAndreas Gampe return ret; 1155efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1156efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 11572ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenNegLong(RegLocation rl_dest, RegLocation rl_src) { 11581fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, kCoreReg); 11591fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 11602700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage z_reg = AllocTemp(); 11611fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstantNoClobber(z_reg, 0); 1162efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Check for destructive overlap 11632700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (rl_result.reg.GetLowReg() == rl_src.reg.GetHighReg()) { 11642700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 11652f340a843ea5b3413c901f8c2365243b68864468Vladimir Marko OpRegCopy(t_reg, rl_result.reg.GetLow()); 11662700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg.GetLow(), z_reg, rl_src.reg.GetLow()); 11672700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSbc, rl_result.reg.GetHigh(), z_reg, t_reg); 11681fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 1169efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 11702700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg.GetLow(), z_reg, rl_src.reg.GetLow()); 11712700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSbc, rl_result.reg.GetHigh(), z_reg, rl_src.reg.GetHigh()); 1172efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 11731fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(z_reg); 11741fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 1175efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1176efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1177e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenMulLong(Instruction::Code opcode, RegLocation rl_dest, 1178e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell RegLocation rl_src1, RegLocation rl_src2) { 11796a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(opcode); 11806a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers /* 11816a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * tmp1 = src1.hi * src2.lo; // src1.hi is no longer needed 11826a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * dest = src1.lo * src2.lo; 11836a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * tmp1 += src1.lo * src2.hi; 11846a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * dest.hi += tmp1; 11856a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * 11866a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * To pull off inline multiply, we have a worst-case requirement of 7 temporary 11876a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * registers. Normally for Arm, we get 5. We can get to 6 by including 11886a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * lr in the temp set. The only problematic case is all operands and result are 11896a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * distinct, and none have been promoted. In that case, we can succeed by aggressively 11906a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * freeing operand temp registers after they are no longer needed. All other cases 11916a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * can proceed normally. We'll just punt on the case of the result having a misaligned 11926a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers * overlap with either operand and send that case to a runtime handler. 11936a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers */ 11946a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers RegLocation rl_result; 11956a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers if (PartiallyIntersects(rl_src1, rl_dest) || (PartiallyIntersects(rl_src2, rl_dest))) { 11966a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers FlushAllRegs(); 11976a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers CallRuntimeHelperRegLocationRegLocation(kQuickLmul, rl_src1, rl_src2, false); 11986a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers rl_result = GetReturnWide(kCoreReg); 11996a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers StoreValueWide(rl_dest, rl_result); 12006a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers return; 12016a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers } 1202d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 12036a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers rl_src1 = LoadValueWide(rl_src1, kCoreReg); 12046a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers rl_src2 = LoadValueWide(rl_src2, kCoreReg); 1205d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 12066a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers int reg_status = 0; 12076a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers RegStorage res_lo; 12086a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers RegStorage res_hi; 12096a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers bool dest_promoted = rl_dest.location == kLocPhysReg && rl_dest.reg.Valid() && 12106a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers !IsTemp(rl_dest.reg.GetLow()) && !IsTemp(rl_dest.reg.GetHigh()); 12116a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers bool src1_promoted = !IsTemp(rl_src1.reg.GetLow()) && !IsTemp(rl_src1.reg.GetHigh()); 12126a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers bool src2_promoted = !IsTemp(rl_src2.reg.GetLow()) && !IsTemp(rl_src2.reg.GetHigh()); 12136a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers // Check if rl_dest is *not* either operand and we have enough temp registers. 12146a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers if ((rl_dest.s_reg_low != rl_src1.s_reg_low && rl_dest.s_reg_low != rl_src2.s_reg_low) && 12156a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers (dest_promoted || src1_promoted || src2_promoted)) { 12166a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers // In this case, we do not need to manually allocate temp registers for result. 12176a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers rl_result = EvalLoc(rl_dest, kCoreReg, true); 12186a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers res_lo = rl_result.reg.GetLow(); 12196a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers res_hi = rl_result.reg.GetHigh(); 12206a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers } else { 12216a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers res_lo = AllocTemp(); 12226a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers if ((rl_src1.s_reg_low == rl_src2.s_reg_low) || src1_promoted || src2_promoted) { 12236a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers // In this case, we have enough temp registers to be allocated for result. 12246a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers res_hi = AllocTemp(); 12256a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers reg_status = 1; 12264ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 12276a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers // In this case, all temps are now allocated. 12286a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers // res_hi will be allocated after we can free src1_hi. 12296a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers reg_status = 2; 12304ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12316a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers } 1232d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 12336a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers // Temporarily add LR to the temp pool, and assign it to tmp1 12346a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers MarkTemp(rs_rARM_LR); 12356a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers FreeTemp(rs_rARM_LR); 12366a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers RegStorage tmp1 = rs_rARM_LR; 12376a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers LockTemp(rs_rARM_LR); 1238d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 12396a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers if (rl_src1.reg == rl_src2.reg) { 12406a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers DCHECK(res_hi.Valid()); 12416a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers DCHECK(res_lo.Valid()); 12426a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers NewLIR3(kThumb2MulRRR, tmp1.GetReg(), rl_src1.reg.GetLowReg(), rl_src1.reg.GetHighReg()); 12436a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers NewLIR4(kThumb2Umull, res_lo.GetReg(), res_hi.GetReg(), rl_src1.reg.GetLowReg(), 12446a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers rl_src1.reg.GetLowReg()); 12456a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers OpRegRegRegShift(kOpAdd, res_hi, res_hi, tmp1, EncodeShift(kArmLsl, 1)); 12466a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers } else { 12476a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers NewLIR3(kThumb2MulRRR, tmp1.GetReg(), rl_src2.reg.GetLowReg(), rl_src1.reg.GetHighReg()); 12486a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers if (reg_status == 2) { 12496a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers DCHECK(!res_hi.Valid()); 12506a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers DCHECK_NE(rl_src1.reg.GetLowReg(), rl_src2.reg.GetLowReg()); 12516a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers DCHECK_NE(rl_src1.reg.GetHighReg(), rl_src2.reg.GetHighReg()); 12526a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers // Will force free src1_hi, so must clobber. 12536a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers Clobber(rl_src1.reg); 12546a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers FreeTemp(rl_src1.reg.GetHigh()); 12556a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers res_hi = AllocTemp(); 1256d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } 12576a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers DCHECK(res_hi.Valid()); 12586a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers DCHECK(res_lo.Valid()); 12596a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers NewLIR4(kThumb2Umull, res_lo.GetReg(), res_hi.GetReg(), rl_src2.reg.GetLowReg(), 12606a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers rl_src1.reg.GetLowReg()); 12616a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers NewLIR4(kThumb2Mla, tmp1.GetReg(), rl_src1.reg.GetLowReg(), rl_src2.reg.GetHighReg(), 12626a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers tmp1.GetReg()); 12636a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers NewLIR4(kThumb2AddRRR, res_hi.GetReg(), tmp1.GetReg(), res_hi.GetReg(), 0); 12646a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers if (reg_status == 2) { 12656a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers FreeTemp(rl_src1.reg.GetLow()); 12666a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers } 12676a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers } 1268d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 12696a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers // Now, restore lr to its non-temp status. 12706a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers FreeTemp(tmp1); 12716a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers Clobber(rs_rARM_LR); 12726a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UnmarkTemp(rs_rARM_LR); 12736a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers 12746a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers if (reg_status != 0) { 12756a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers // We had manually allocated registers for rl_result. 12766a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers // Now construct a RegLocation. 12776a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers rl_result = GetReturnWide(kCoreReg); // Just using as a template. 12786a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers rl_result.reg = RegStorage::MakeRegPair(res_lo, res_hi); 12796a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers } 12806a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers 12816a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers StoreValueWide(rl_dest, rl_result); 12824ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 12834ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1284c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampevoid ArmMir2Lir::GenArithOpLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 12855c5676b26a08454b3f0133783778991bbe5dd681Razvan A Lupusoru RegLocation rl_src2, int flags) { 1286c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe switch (opcode) { 1287c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe case Instruction::MUL_LONG: 1288c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe case Instruction::MUL_LONG_2ADDR: 1289c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe GenMulLong(opcode, rl_dest, rl_src1, rl_src2); 1290c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe return; 1291c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe case Instruction::NEG_LONG: 1292c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe GenNegLong(rl_dest, rl_src2); 1293c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe return; 1294efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1295c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe default: 1296c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe break; 1297c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe } 1298efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1299c76c614d681d187d815760eb909e5faf488a3c35Andreas Gampe // Fallback for all other ops. 13005c5676b26a08454b3f0133783778991bbe5dd681Razvan A Lupusoru Mir2Lir::GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2, flags); 1301efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1302efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1303e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee/* 1304e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * Generate array load 1305e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee */ 13061fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArrayGet(int opt_flags, OpSize size, RegLocation rl_array, 1307a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers RegLocation rl_index, RegLocation rl_dest, int scale) { 1308091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegisterClass reg_class = RegClassBySize(size); 13092dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers int len_offset = mirror::Array::LengthOffset().Int32Value(); 1310e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee int data_offset; 1311e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee RegLocation rl_result; 13124ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee bool constant_index = rl_index.is_const; 1313a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_array = LoadValue(rl_array, kRefReg); 13144ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 13151fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_index = LoadValue(rl_index, kCoreReg); 13164ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1317e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1318e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_dest.wide) { 13192dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int64_t)).Int32Value(); 1320e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 13212dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int32_t)).Int32Value(); 1322e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1323e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 13244ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // If index is constant, just fold it into the data offset 13254ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 13261fd3346740dfb7f47be9922312b68a4227fada96buzbee data_offset += mir_graph_->ConstantValue(rl_index) << scale; 13274ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13284ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1329e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* null object? */ 13302700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenNullCheck(rl_array.reg, opt_flags); 1331e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1332e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee bool needs_range_check = (!(opt_flags & MIR_IGNORE_RANGE_CHECK)); 13332700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_len; 1334e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 13351fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_len = AllocTemp(); 1336e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* Get len */ 1337695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_array.reg, len_offset, reg_len); 1338b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1339b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison } else { 13402700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee ForceImplicitNullCheck(rl_array.reg, opt_flags); 1341e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 13424ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_dest.wide || rl_dest.fp || constant_index) { 13432700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr; 13444ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 13452700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; // NOTE: must not alter reg_ptr in constant case. 13464ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 13474ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // No special indexed operation, lea + load w/ displacement 1348a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee reg_ptr = AllocTempRef(); 1349e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, reg_ptr, rl_array.reg, rl_index.reg, EncodeShift(kArmLsl, scale)); 1350091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rl_index.reg); 13514ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13521fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, reg_class, true); 1353e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1354e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 13554ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 135680365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(mir_graph_->ConstantValue(rl_index), reg_len); 13574ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 135880365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(rl_index.reg, reg_len); 13594ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13601fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1361e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 13623c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe LoadBaseDisp(reg_ptr, data_offset, rl_result.reg, size, kNotVolatile); 1363455759b5702b9435b91d1b4dada22c4cce7cae3cVladimir Marko if (!constant_index) { 1364455759b5702b9435b91d1b4dada22c4cce7cae3cVladimir Marko FreeTemp(reg_ptr); 1365455759b5702b9435b91d1b4dada22c4cce7cae3cVladimir Marko } 1366e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_dest.wide) { 13671fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 1368e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 13691fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 1370e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1371e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1372e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee // Offset base, then use indexed load 1373a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee RegStorage reg_ptr = AllocTempRef(); 13742700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAdd, reg_ptr, rl_array.reg, data_offset); 1375091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee FreeTemp(rl_array.reg); 13761fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, reg_class, true); 1377e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1378e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 137980365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(rl_index.reg, reg_len); 13801fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1381e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 13822700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadBaseIndexed(reg_ptr, rl_index.reg, rl_result.reg, scale, size); 13831fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 13841fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 1385e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1386e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee} 1387e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1388e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee/* 1389e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * Generate array store 1390e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * 1391e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee */ 13921fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArrayPut(int opt_flags, OpSize size, RegLocation rl_array, 1393a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers RegLocation rl_index, RegLocation rl_src, int scale, bool card_mark) { 1394091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee RegisterClass reg_class = RegClassBySize(size); 13952dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers int len_offset = mirror::Array::LengthOffset().Int32Value(); 13964ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee bool constant_index = rl_index.is_const; 1397e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1398a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers int data_offset; 1399695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee if (size == k64 || size == kDouble) { 14002dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int64_t)).Int32Value(); 1401e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 14022dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int32_t)).Int32Value(); 1403e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1404e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 14054ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // If index is constant, just fold it into the data offset. 14064ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 14071fd3346740dfb7f47be9922312b68a4227fada96buzbee data_offset += mir_graph_->ConstantValue(rl_index) << scale; 14084ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 14094ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1410a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee rl_array = LoadValue(rl_array, kRefReg); 14114ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 14121fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_index = LoadValue(rl_index, kCoreReg); 14134ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 14144ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 14152700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr; 1416773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers bool allocated_reg_ptr_temp = false; 14174ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 14182700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; 1419091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee } else if (IsTemp(rl_array.reg) && !card_mark) { 1420091cc408e9dc87e60fb64c61e186bea568fc3d3abuzbee Clobber(rl_array.reg); 14212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; 1422e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1423773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers allocated_reg_ptr_temp = true; 1424a0cd2d701f29e0bc6275f1b13c0edfd4ec391879buzbee reg_ptr = AllocTempRef(); 1425e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1426e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1427e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* null object? */ 14282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenNullCheck(rl_array.reg, opt_flags); 1429e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1430e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee bool needs_range_check = (!(opt_flags & MIR_IGNORE_RANGE_CHECK)); 14312700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_len; 1432e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 14331fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_len = AllocTemp(); 14347934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // NOTE: max live temps(4) here. 1435e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* Get len */ 1436695d13a82d6dd801aaa57a22a9d4b3f6db0d0fdbbuzbee Load32Disp(rl_array.reg, len_offset, reg_len); 1437b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1438b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison } else { 14392700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee ForceImplicitNullCheck(rl_array.reg, opt_flags); 1440e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1441e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* at this point, reg_ptr points to array, 2 live temps */ 14424ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src.wide || rl_src.fp || constant_index) { 1443e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_src.wide) { 14441fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, reg_class); 1445e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 14461fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, reg_class); 1447e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 14484ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 1449e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, reg_ptr, rl_array.reg, rl_index.reg, EncodeShift(kArmLsl, scale)); 14504ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1451e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 14524ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 145380365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(mir_graph_->ConstantValue(rl_index), reg_len); 14544ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 145580365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(rl_index.reg, reg_len); 14564ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 14571fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1458e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 14594ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 14603c12c512faf6837844d5465b23b9410889e5eb11Andreas Gampe StoreBaseDisp(reg_ptr, data_offset, rl_src.reg, size, kNotVolatile); 1461e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1462e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* reg_ptr -> array data */ 14632700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAdd, reg_ptr, rl_array.reg, data_offset); 14641fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, reg_class); 1465e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 146680365d9bb947edef0eae0bfe62b9f7a239416e6bMingyao Yang GenArrayBoundsCheck(rl_index.reg, reg_len); 14671fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1468e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 14692700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseIndexed(reg_ptr, rl_index.reg, rl_src.reg, scale, size); 1470e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1471773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers if (allocated_reg_ptr_temp) { 14721fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 14734ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1474a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers if (card_mark) { 1475743b98cd3d7db1cfd6b3d7f7795e8abd9d07a42dVladimir Marko MarkGCCard(opt_flags, rl_src.reg, rl_array.reg); 14766a791b26577a61fd14f4836c795d616869bd2957buzbee } 1477e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee} 1478e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1479a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers 14801fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenShiftImmOpLong(Instruction::Code opcode, 14815c5676b26a08454b3f0133783778991bbe5dd681Razvan A Lupusoru RegLocation rl_dest, RegLocation rl_src, RegLocation rl_shift, 14825c5676b26a08454b3f0133783778991bbe5dd681Razvan A Lupusoru int flags) { 14836a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(flags); 14841fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, kCoreReg); 14854ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Per spec, we only care about low 6 bits of shift amount. 14861fd3346740dfb7f47be9922312b68a4227fada96buzbee int shift_amount = mir_graph_->ConstantValue(rl_shift) & 0x3f; 14874ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 0) { 14881fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_src); 1489a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 14904ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1491d8c3e3608a7b47e82186e4f8118541ef06d9eab2Alexei Zavjalov if (PartiallyIntersects(rl_src, rl_dest)) { 14921fd3346740dfb7f47be9922312b68a4227fada96buzbee GenShiftOpLong(opcode, rl_dest, rl_src, rl_shift); 1493a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 14944ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 14951fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 1496df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (opcode) { 14974ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHL_LONG: 14984ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHL_LONG_2ADDR: 14994ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 1) { 15002700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdd, rl_result.reg.GetLow(), rl_src.reg.GetLow(), rl_src.reg.GetLow()); 15012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdc, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), rl_src.reg.GetHigh()); 15024ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount == 32) { 15032700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetHigh(), rl_src.reg); 15042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetLow(), 0); 15054ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 15062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetHigh(), rl_src.reg.GetLow(), shift_amount - 32); 15072700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetLow(), 0); 15084ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 15092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 1510e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpOr, rl_result.reg.GetHigh(), rl_result.reg.GetHigh(), rl_src.reg.GetLow(), 15114ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsr, 32 - shift_amount)); 15122700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetLow(), rl_src.reg.GetLow(), shift_amount); 15134ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15144ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15154ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHR_LONG: 15164ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHR_LONG_2ADDR: 15174ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 32) { 15182700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetLow(), rl_src.reg.GetHigh()); 15192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), 31); 15204ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 15212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetLow(), rl_src.reg.GetHigh(), shift_amount - 32); 15222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), 31); 15234ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 15242700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 15252700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, t_reg, rl_src.reg.GetLow(), shift_amount); 1526e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpOr, rl_result.reg.GetLow(), t_reg, rl_src.reg.GetHigh(), 15274ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsl, 32 - shift_amount)); 15281fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 15292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 15304ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15314ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15324ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::USHR_LONG: 15334ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::USHR_LONG_2ADDR: 15344ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 32) { 15352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetLow(), rl_src.reg.GetHigh()); 15362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetHigh(), 0); 15374ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 15382700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, rl_result.reg.GetLow(), rl_src.reg.GetHigh(), shift_amount - 32); 15392700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetHigh(), 0); 15404ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 15412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 15422700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, t_reg, rl_src.reg.GetLow(), shift_amount); 1543e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpOr, rl_result.reg.GetLow(), t_reg, rl_src.reg.GetHigh(), 15444ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsl, 32 - shift_amount)); 15451fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 15462700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 15474ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15484ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15494ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 15504ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected case"; 15514ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15521fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 15534ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 15544ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 15551fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArithImmOpLong(Instruction::Code opcode, 15565c5676b26a08454b3f0133783778991bbe5dd681Razvan A Lupusoru RegLocation rl_dest, RegLocation rl_src1, RegLocation rl_src2, 15575c5676b26a08454b3f0133783778991bbe5dd681Razvan A Lupusoru int flags) { 15584ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((opcode == Instruction::SUB_LONG_2ADDR) || (opcode == Instruction::SUB_LONG)) { 15594ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!rl_src2.is_const) { 15604ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Don't bother with special handling for subtract from immediate. 15615c5676b26a08454b3f0133783778991bbe5dd681Razvan A Lupusoru GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2, flags); 1562a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 15634ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15644ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 15654ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Normalize 15664ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!rl_src2.is_const) { 15674ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee DCHECK(rl_src1.is_const); 156858af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko std::swap(rl_src1, rl_src2); 15694ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15704ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1571d8c3e3608a7b47e82186e4f8118541ef06d9eab2Alexei Zavjalov if (PartiallyIntersects(rl_src1, rl_dest)) { 15725c5676b26a08454b3f0133783778991bbe5dd681Razvan A Lupusoru GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2, flags); 1573a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 15744ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15754ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee DCHECK(rl_src2.is_const); 15761fd3346740dfb7f47be9922312b68a4227fada96buzbee int64_t val = mir_graph_->ConstantValueWide(rl_src2); 15774ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee uint32_t val_lo = Low32Bits(val); 15784ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee uint32_t val_hi = High32Bits(val); 15794ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t mod_imm_lo = ModifiedImmediate(val_lo); 15804ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t mod_imm_hi = ModifiedImmediate(val_hi); 15814ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 15824ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Only a subset of add/sub immediate instructions set carry - so bail if we don't fit 1583df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (opcode) { 15844ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG: 15854ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG_2ADDR: 15864ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG: 15874ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG_2ADDR: 15884ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((mod_imm_lo < 0) || (mod_imm_hi < 0)) { 15895c5676b26a08454b3f0133783778991bbe5dd681Razvan A Lupusoru GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2, flags); 1590a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 15914ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15924ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15934ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 15944ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 15954ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 15961fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 15971fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 15984ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // NOTE: once we've done the EvalLoc on dest, we can no longer bail. 15994ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee switch (opcode) { 16004ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG: 16014ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG_2ADDR: 16022700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2AddRRI8M, rl_result.reg.GetLowReg(), rl_src1.reg.GetLowReg(), mod_imm_lo); 160300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee NewLIR3(kThumb2AdcRRI8M, rl_result.reg.GetHighReg(), rl_src1.reg.GetHighReg(), mod_imm_hi); 16044ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 16054ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::OR_LONG: 16064ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::OR_LONG_2ADDR: 16072700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if ((val_lo != 0) || (rl_result.reg.GetLowReg() != rl_src1.reg.GetLowReg())) { 16082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpOr, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 16094ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 161000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if ((val_hi != 0) || (rl_result.reg.GetHighReg() != rl_src1.reg.GetHighReg())) { 16112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpOr, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 16124ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 16134ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 16144ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::XOR_LONG: 16154ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::XOR_LONG_2ADDR: 16162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpXor, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 16172700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpXor, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 16184ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 16194ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::AND_LONG: 16204ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::AND_LONG_2ADDR: 16212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if ((val_lo != 0xffffffff) || (rl_result.reg.GetLowReg() != rl_src1.reg.GetLowReg())) { 16222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAnd, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 16234ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 162400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if ((val_hi != 0xffffffff) || (rl_result.reg.GetHighReg() != rl_src1.reg.GetHighReg())) { 16252700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAnd, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 16264ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 16274ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 16284ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG_2ADDR: 16294ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG: 16302700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2SubRRI8M, rl_result.reg.GetLowReg(), rl_src1.reg.GetLowReg(), mod_imm_lo); 163100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee NewLIR3(kThumb2SbcRRI8M, rl_result.reg.GetHighReg(), rl_src1.reg.GetHighReg(), mod_imm_hi); 16324ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 16334ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 16344ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected opcode " << opcode; 16354ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 16361fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 16374ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 16384ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1639efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} // namespace art 1640