int_arm.cc revision 3da67a558f1fd3d8a157d8044d521753f3f99ac8
1efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 2efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Copyright (C) 2011 The Android Open Source Project 3efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * 4efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Licensed under the Apache License, Version 2.0 (the "License"); 5efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * you may not use this file except in compliance with the License. 6efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * You may obtain a copy of the License at 7efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * 8efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * http://www.apache.org/licenses/LICENSE-2.0 9efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * 10efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Unless required by applicable law or agreed to in writing, software 11efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * distributed under the License is distributed on an "AS IS" BASIS, 12efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * See the License for the specific language governing permissions and 14efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * limitations under the License. 15efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 16efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 17efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* This file contains codegen for the Thumb2 ISA. */ 18efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 191bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee#include "arm_lir.h" 2002031b185b4653e6c72e21f7a51238b903f6d638buzbee#include "codegen_arm.h" 217940e44f4517de5e2634a7e07d58d0fb26160513Brian Carlstrom#include "dex/quick/mir_to_lir-inl.h" 22166db04e259ca51838c311891598664deeed85adIan Rogers#include "entrypoints/quick/quick_entrypoints.h" 2333e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers#include "mirror/array.h" 24efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 25efc6369224b036a1fb77849f7ae65b3492c832c0buzbeenamespace art { 26efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 272700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpCmpBranch(ConditionCode cond, RegStorage src1, RegStorage src2, LIR* target) { 281fd3346740dfb7f47be9922312b68a4227fada96buzbee OpRegReg(kOpCmp, src1, src2); 291fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpCondBranch(cond, target); 30efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 31efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 32efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 33efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Generate a Thumb2 IT instruction, which can nullify up to 34efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * four subsequent instructions based on a condition and its 35efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * inverse. The condition applies to the first instruction, which 36efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * is executed if the condition is met. The string "guide" consists 37efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * of 0 to 3 chars, and applies to the 2nd through 4th instruction. 38efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * A "T" means the instruction is executed if the condition is 39efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * met, and an "E" means the instruction is executed if the condition 40efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * is not met. 41efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 422ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* ArmMir2Lir::OpIT(ConditionCode ccode, const char* guide) { 43efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask; 44efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask3 = 0; 45efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask2 = 0; 46efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int mask1 = 0; 4702031b185b4653e6c72e21f7a51238b903f6d638buzbee ArmConditionCode code = ArmConditionEncoding(ccode); 4802031b185b4653e6c72e21f7a51238b903f6d638buzbee int cond_bit = code & 1; 4902031b185b4653e6c72e21f7a51238b903f6d638buzbee int alt_bit = cond_bit ^ 1; 50efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 517934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // Note: case fallthroughs intentional 52efc6369224b036a1fb77849f7ae65b3492c832c0buzbee switch (strlen(guide)) { 53efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 3: 54fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mask1 = (guide[2] == 'T') ? cond_bit : alt_bit; 55efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 2: 56fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mask2 = (guide[1] == 'T') ? cond_bit : alt_bit; 57efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 1: 58fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mask3 = (guide[0] == 'T') ? cond_bit : alt_bit; 59efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 60efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 0: 61efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 62efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 6352a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "OAT: bad case in OpIT"; 64efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 65efc6369224b036a1fb77849f7ae65b3492c832c0buzbee mask = (mask3 << 3) | (mask2 << 2) | (mask1 << 1) | 66efc6369224b036a1fb77849f7ae65b3492c832c0buzbee (1 << (3 - strlen(guide))); 671fd3346740dfb7f47be9922312b68a4227fada96buzbee return NewLIR2(kThumb2It, code, mask); 68efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 69efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 703da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allisonvoid ArmMir2Lir::OpEndIT(LIR* it) { 713da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison // TODO: use the 'it' pointer to do some checks with the LIR, for example 723da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison // we could check that the number of instructions matches the mask 733da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison // in the IT instruction. 743da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison CHECK(it != nullptr); 753da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison GenBarrier(); 763da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison} 773da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison 78efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 79efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * 64-bit 3way compare function. 80efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov rX, #-1 81efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * cmp op1hi, op2hi 82efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * blt done 83efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * bgt flip 84efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * sub rX, op1lo, op2lo (treat as unsigned) 85efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * beq done 86efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * ite hi 87efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov(hi) rX, #-1 88efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov(!hi) rX, #1 89efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * flip: 90efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * neg rX 91efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * done: 92efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 931fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenCmpLong(RegLocation rl_dest, RegLocation rl_src1, 942ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 95efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* target1; 96efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* target2; 971fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 981fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValueWide(rl_src2, kCoreReg); 992700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 1001fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg, -1); 1012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetHigh(), rl_src2.reg.GetHigh()); 1021fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch1 = OpCondBranch(kCondLt, NULL); 1031fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch2 = OpCondBranch(kCondGt, NULL); 1042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, t_reg, rl_src1.reg, rl_src2.reg); 1051fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch3 = OpCondBranch(kCondEq, NULL); 1061fd3346740dfb7f47be9922312b68a4227fada96buzbee 1073da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(kCondHi, "E"); 1082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR2(kThumb2MovI8M, t_reg.GetReg(), ModifiedImmediate(-1)); 1091fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg, 1); 1103da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); 1111fd3346740dfb7f47be9922312b68a4227fada96buzbee 1121fd3346740dfb7f47be9922312b68a4227fada96buzbee target2 = NewLIR0(kPseudoTargetLabel); 1131fd3346740dfb7f47be9922312b68a4227fada96buzbee OpRegReg(kOpNeg, t_reg, t_reg); 1141fd3346740dfb7f47be9922312b68a4227fada96buzbee 1151fd3346740dfb7f47be9922312b68a4227fada96buzbee target1 = NewLIR0(kPseudoTargetLabel); 116fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee 1177934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom RegLocation rl_temp = LocCReturn(); // Just using as template, will change 1182700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_temp.reg.SetReg(t_reg.GetReg()); 1191fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_temp); 1201fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 121efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 122cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee branch1->target = target1; 123cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee branch2->target = target2; 124efc6369224b036a1fb77849f7ae65b3492c832c0buzbee branch3->target = branch1->target; 125efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 126efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1271fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenFusedLongCmpImmBranch(BasicBlock* bb, RegLocation rl_src1, 1282ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom int64_t val, ConditionCode ccode) { 1294ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t val_lo = Low32Bits(val); 1304ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t val_hi = High32Bits(val); 1314274889d48ef82369bf2c1ca70d84689b4f9e93aBrian Carlstrom DCHECK_GE(ModifiedImmediate(val_lo), 0); 1324274889d48ef82369bf2c1ca70d84689b4f9e93aBrian Carlstrom DCHECK_GE(ModifiedImmediate(val_hi), 0); 1330d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* taken = &block_label_list_[bb->taken]; 1340d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* not_taken = &block_label_list_[bb->fall_through]; 1351fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 1362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage low_reg = rl_src1.reg.GetLow(); 1372700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage high_reg = rl_src1.reg.GetHigh(); 1384ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 13958af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko if (val == 0 && (ccode == kCondEq || ccode == kCondNe)) { 1402700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 1412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, t_reg.GetReg(), low_reg.GetReg(), high_reg.GetReg(), 0); 14258af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko FreeTemp(t_reg); 14358af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko OpCondBranch(ccode, taken); 14458af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko return; 14558af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko } 14658af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko 147df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (ccode) { 1484ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondEq: 1494ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondNe: 15058af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko OpCmpImmBranch(kCondNe, high_reg, val_hi, (ccode == kCondEq) ? not_taken : taken); 1514ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1524ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondLt: 1531fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, taken); 1541fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, not_taken); 15558af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUlt; 1564ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1574ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondLe: 1581fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, taken); 1591fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, not_taken); 1604ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = kCondLs; 1614ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1624ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondGt: 1631fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, taken); 1641fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, not_taken); 1654ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = kCondHi; 1664ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1674ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondGe: 1681fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, taken); 1691fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, not_taken); 17058af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUge; 1714ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1724ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 1734ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected ccode: " << ccode; 1744ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1751fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(ccode, low_reg, val_lo, taken); 1764ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 1774ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1782ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenSelect(BasicBlock* bb, MIR* mir) { 179f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee RegLocation rl_result; 1801fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src = mir_graph_->GetSrc(mir, 0); 1811fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = mir_graph_->GetDest(mir); 1821fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, kCoreReg); 183a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko ConditionCode ccode = mir->meta.ccode; 184f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee if (mir->ssa_rep->num_uses == 1) { 185f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // CONST case 186f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee int true_val = mir->dalvikInsn.vB; 187f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee int false_val = mir->dalvikInsn.vC; 1881fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, kCoreReg, true); 189a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko // Change kCondNe to kCondEq for the special cases below. 190a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko if (ccode == kCondNe) { 191a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko ccode = kCondEq; 192a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko std::swap(true_val, false_val); 193a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } 194a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko bool cheap_false_val = InexpensiveConstantInt(false_val); 195a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko if (cheap_false_val && ccode == kCondEq && (true_val == 0 || true_val == -1)) { 1962700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpSub, rl_result.reg, rl_src.reg, -true_val); 197a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 1983da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(true_val == 0 ? kCondNe : kCondUge, ""); 1992700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 2003da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 201a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } else if (cheap_false_val && ccode == kCondEq && true_val == 1) { 2022700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpRsub, rl_result.reg, rl_src.reg, 1); 203a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 2043da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(kCondLs, ""); 2052700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 2063da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 207a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } else if (cheap_false_val && InexpensiveConstantInt(true_val)) { 2082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 2093da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(ccode, "E"); 2102700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, true_val); 2112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 2123da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 213f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } else { 214f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // Unlikely case - could be tuned. 2152700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg1 = AllocTemp(); 2162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg2 = AllocTemp(); 2171fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg1, true_val); 2181fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg2, false_val); 2192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 2203da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT(ccode, "E"); 2212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, t_reg1); 2222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, t_reg2); 2233da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 224f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } 225f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } else { 226f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // MOVE case 2271fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_true = mir_graph_->reg_location_[mir->ssa_rep->uses[1]]; 2281fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_false = mir_graph_->reg_location_[mir->ssa_rep->uses[2]]; 2291fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_true = LoadValue(rl_true, kCoreReg); 2301fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_false = LoadValue(rl_false, kCoreReg); 2311fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, kCoreReg, true); 2322700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 2333da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = nullptr; 23400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (rl_result.reg.GetReg() == rl_true.reg.GetReg()) { // Is the "true" case already in place? 2353da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(NegateComparison(ccode), ""); 2362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_false.reg); 23700e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee } else if (rl_result.reg.GetReg() == rl_false.reg.GetReg()) { // False case in place? 2383da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(ccode, ""); 2392700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_true.reg); 240252254b130067cd7a5071865e793966871ae0246buzbee } else { // Normal - select between the two. 2413da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(ccode, "E"); 2422700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_true.reg); 2432700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_false.reg); 244252254b130067cd7a5071865e793966871ae0246buzbee } 2453da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Add a scheduling barrier to keep the IT shadow intact 246f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } 2471fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 248f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee} 2494ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 2502ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenFusedLongCmpBranch(BasicBlock* bb, MIR* mir) { 2511fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src1 = mir_graph_->GetSrcWide(mir, 0); 2521fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src2 = mir_graph_->GetSrcWide(mir, 2); 2534ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Normalize such that if either operand is constant, src2 will be constant. 254a894607bca7eb623bc957363e4b36f44cfeea1b6Vladimir Marko ConditionCode ccode = mir->meta.ccode; 2554ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src1.is_const) { 25658af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko std::swap(rl_src1, rl_src2); 2574ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = FlipComparisonOrder(ccode); 2584ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 2594ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src2.is_const) { 2601fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_temp = UpdateLocWide(rl_src2); 2614ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Do special compare/branch against simple const operand if not already in registers. 2621fd3346740dfb7f47be9922312b68a4227fada96buzbee int64_t val = mir_graph_->ConstantValueWide(rl_src2); 2634ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((rl_temp.location != kLocPhysReg) && 2644ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ((ModifiedImmediate(Low32Bits(val)) >= 0) && (ModifiedImmediate(High32Bits(val)) >= 0))) { 2651fd3346740dfb7f47be9922312b68a4227fada96buzbee GenFusedLongCmpImmBranch(bb, rl_src1, val, ccode); 2664ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return; 2674ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 2684ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 2690d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* taken = &block_label_list_[bb->taken]; 2700d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* not_taken = &block_label_list_[bb->fall_through]; 2711fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 2721fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValueWide(rl_src2, kCoreReg); 2732700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetHigh(), rl_src2.reg.GetHigh()); 274df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (ccode) { 275efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondEq: 2761fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondNe, not_taken); 277efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 278efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondNe: 2791fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondNe, taken); 280efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 281efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondLt: 2821fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, taken); 2831fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, not_taken); 28458af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUlt; 285efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 286efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondLe: 2871fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, taken); 2881fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, not_taken); 289efc6369224b036a1fb77849f7ae65b3492c832c0buzbee ccode = kCondLs; 290efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 291efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondGt: 2921fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, taken); 2931fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, not_taken); 294efc6369224b036a1fb77849f7ae65b3492c832c0buzbee ccode = kCondHi; 295efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 296efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondGe: 2971fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, taken); 2981fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, not_taken); 29958af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUge; 300efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 301efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 302cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Unexpected ccode: " << ccode; 303efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 3042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetLow(), rl_src2.reg.GetLow()); 3051fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(ccode, taken); 306efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 307efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 308efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 309efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Generate a register comparison to an immediate and branch. Caller 310efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * is responsible for setting branch target field. 311efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 3122700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpCmpImmBranch(ConditionCode cond, RegStorage reg, int check_value, LIR* target) { 313efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* branch; 314fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee ArmConditionCode arm_cond = ArmConditionEncoding(cond); 315b48819db07f9a0992a72173380c24249d7fc648abuzbee /* 316b48819db07f9a0992a72173380c24249d7fc648abuzbee * A common use of OpCmpImmBranch is for null checks, and using the Thumb 16-bit 317b48819db07f9a0992a72173380c24249d7fc648abuzbee * compare-and-branch if zero is ideal if it will reach. However, because null checks 318b48819db07f9a0992a72173380c24249d7fc648abuzbee * branch forward to a launch pad, they will frequently not reach - and thus have to 319b48819db07f9a0992a72173380c24249d7fc648abuzbee * be converted to a long form during assembly (which will trigger another assembly 320b48819db07f9a0992a72173380c24249d7fc648abuzbee * pass). Here we estimate the branch distance for checks, and if large directly 321b48819db07f9a0992a72173380c24249d7fc648abuzbee * generate the long form in an attempt to avoid an extra assembly pass. 322b48819db07f9a0992a72173380c24249d7fc648abuzbee * TODO: consider interspersing launchpads in code following unconditional branches. 323b48819db07f9a0992a72173380c24249d7fc648abuzbee */ 324b48819db07f9a0992a72173380c24249d7fc648abuzbee bool skip = ((target != NULL) && (target->opcode == kPseudoThrowTarget)); 325b48819db07f9a0992a72173380c24249d7fc648abuzbee skip &= ((cu_->code_item->insns_size_in_code_units_ - current_dalvik_offset_) > 64); 3262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (!skip && (ARM_LOWREG(reg.GetReg())) && (check_value == 0) && 327fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee ((arm_cond == kArmCondEq) || (arm_cond == kArmCondNe))) { 3281fd3346740dfb7f47be9922312b68a4227fada96buzbee branch = NewLIR2((arm_cond == kArmCondEq) ? kThumb2Cbz : kThumb2Cbnz, 3292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg.GetReg(), 0); 330efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 3312247984899247b1402408d39731ff64048f0e274Vladimir Marko OpRegImm(kOpCmp, reg, check_value); 3321fd3346740dfb7f47be9922312b68a4227fada96buzbee branch = NewLIR2(kThumbBCond, 0, arm_cond); 333efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 334efc6369224b036a1fb77849f7ae65b3492c832c0buzbee branch->target = target; 335efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return branch; 336efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 33702031b185b4653e6c72e21f7a51238b903f6d638buzbee 3382700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpRegCopyNoInsert(RegStorage r_dest, RegStorage r_src) { 339efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* res; 340efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int opcode; 3412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee // If src or dest is a pair, we'll be using low reg. 3422700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (r_dest.IsPair()) { 3432700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_dest = r_dest.GetLow(); 3442700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee } 3452700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (r_src.IsPair()) { 3462700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_src = r_src.GetLow(); 3472700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee } 3482700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (ARM_FPREG(r_dest.GetReg()) || ARM_FPREG(r_src.GetReg())) 3491fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpFpRegCopy(r_dest, r_src); 3502700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (ARM_LOWREG(r_dest.GetReg()) && ARM_LOWREG(r_src.GetReg())) 351efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR; 3522700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee else if (!ARM_LOWREG(r_dest.GetReg()) && !ARM_LOWREG(r_src.GetReg())) 353efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_H2H; 3542700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee else if (ARM_LOWREG(r_dest.GetReg())) 355efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_H2L; 356efc6369224b036a1fb77849f7ae65b3492c832c0buzbee else 357efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_L2H; 3582700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = RawLIR(current_dalvik_offset_, opcode, r_dest.GetReg(), r_src.GetReg()); 3591fd3346740dfb7f47be9922312b68a4227fada96buzbee if (!(cu_->disable_opt & (1 << kSafeOptimizations)) && r_dest == r_src) { 360fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee res->flags.is_nop = true; 361efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 362efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return res; 363efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 364efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 3652700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpRegCopy(RegStorage r_dest, RegStorage r_src) { 3661fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* res = OpRegCopyNoInsert(r_dest, r_src); 3671fd3346740dfb7f47be9922312b68a4227fada96buzbee AppendLIR(res); 368efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return res; 369efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 370efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 3712700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeevoid ArmMir2Lir::OpRegCopyWide(RegStorage r_dest, RegStorage r_src) { 3722700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool dest_fp = ARM_FPREG(r_dest.GetLowReg()); 3732700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool src_fp = ARM_FPREG(r_src.GetLowReg()); 374fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (dest_fp) { 375fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (src_fp) { 3762700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee // FIXME: handle 64-bit solo's here. 3772700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(RegStorage::Solo64(S2d(r_dest.GetLowReg(), r_dest.GetHighReg())), 3782700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage::Solo64(S2d(r_src.GetLowReg(), r_src.GetHighReg()))); 379efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 3802700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Fmdrr, S2d(r_dest.GetLowReg(), r_dest.GetHighReg()), 3812700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_src.GetLowReg(), r_src.GetHighReg()); 382efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 383efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 384fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (src_fp) { 3852700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Fmrrd, r_dest.GetLowReg(), r_dest.GetHighReg(), S2d(r_src.GetLowReg(), 3862700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_src.GetHighReg())); 387efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 388efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Handle overlap 3892700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (r_src.GetHighReg() == r_dest.GetLowReg()) { 3902700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK_NE(r_src.GetLowReg(), r_dest.GetHighReg()); 3912700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(r_dest.GetHigh(), r_src.GetHigh()); 3922700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(r_dest.GetLow(), r_src.GetLow()); 393efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 3942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(r_dest.GetLow(), r_src.GetLow()); 3952700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(r_dest.GetHigh(), r_src.GetHigh()); 396efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 397efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 398efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 399efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 400efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 401efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Table of magic divisors 402efc6369224b036a1fb77849f7ae65b3492c832c0buzbeestruct MagicTable { 403efc6369224b036a1fb77849f7ae65b3492c832c0buzbee uint32_t magic; 404efc6369224b036a1fb77849f7ae65b3492c832c0buzbee uint32_t shift; 405efc6369224b036a1fb77849f7ae65b3492c832c0buzbee DividePattern pattern; 406efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 407efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 408fa57c47f1b72916371a9c2d5c1389219bce655b4buzbeestatic const MagicTable magic_table[] = { 409efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 0 410efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 1 411efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 2 412efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x55555556, 0, Divide3}, // 3 413efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 4 414efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x66666667, 1, Divide5}, // 5 415efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2AAAAAAB, 0, Divide3}, // 6 416efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x92492493, 2, Divide7}, // 7 417efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 8 418efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x38E38E39, 1, Divide5}, // 9 419efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x66666667, 2, Divide5}, // 10 420efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2E8BA2E9, 1, Divide5}, // 11 421efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2AAAAAAB, 1, Divide5}, // 12 422efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x4EC4EC4F, 2, Divide5}, // 13 423efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x92492493, 3, Divide7}, // 14 424efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x88888889, 3, Divide7}, // 15 425efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 426efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 427efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Integer division by constant via reciprocal multiply (Hacker's Delight, 10-4) 42811b63d13f0a3be0f74390b66b58614a37f9aa6c1buzbeebool ArmMir2Lir::SmallLiteralDivRem(Instruction::Code dalvik_opcode, bool is_div, 4292ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src, RegLocation rl_dest, int lit) { 430fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if ((lit < 0) || (lit >= static_cast<int>(sizeof(magic_table)/sizeof(magic_table[0])))) { 431efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return false; 432efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 433fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee DividePattern pattern = magic_table[lit].pattern; 434efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (pattern == DivideNone) { 435efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return false; 436efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 4373654a6f50a948ead89627f398aaf86a2c2db0088Brian Carlstrom // Tuning: add rem patterns 4383654a6f50a948ead89627f398aaf86a2c2db0088Brian Carlstrom if (!is_div) { 4393654a6f50a948ead89627f398aaf86a2c2db0088Brian Carlstrom return false; 4403654a6f50a948ead89627f398aaf86a2c2db0088Brian Carlstrom } 441efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4422700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_magic = AllocTemp(); 4431fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(r_magic, magic_table[lit].magic); 4441fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, kCoreReg); 4451fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 4462700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_hi = AllocTemp(); 4472700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_lo = AllocTemp(); 4482700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Smull, r_lo.GetReg(), r_hi.GetReg(), r_magic.GetReg(), rl_src.reg.GetReg()); 449df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (pattern) { 450efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide3: 451e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpSub, rl_result.reg, r_hi, rl_src.reg, EncodeShift(kArmAsr, 31)); 452efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 453efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide5: 4542700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, r_lo, rl_src.reg, 31); 455e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpRsub, rl_result.reg, r_lo, r_hi, 456e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers EncodeShift(kArmAsr, magic_table[lit].shift)); 457efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 458efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide7: 4592700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpAdd, r_hi, rl_src.reg); 4602700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, r_lo, rl_src.reg, 31); 461e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpRsub, rl_result.reg, r_lo, r_hi, 462e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers EncodeShift(kArmAsr, magic_table[lit].shift)); 463efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 464efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 465cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Unexpected pattern: " << pattern; 466efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 4671fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 468efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 469efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 470efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 471e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers// Try to convert *lit to 1 RegRegRegShift/RegRegShift form. 472e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersbool ArmMir2Lir::GetEasyMultiplyOp(int lit, ArmMir2Lir::EasyMultiplyOp* op) { 473e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (IsPowerOfTwo(lit)) { 474e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpLsl; 475e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->shift = LowestSetBit(lit); 476e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 477e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 478e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 479e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (IsPowerOfTwo(lit - 1)) { 480e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpAdd; 481e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->shift = LowestSetBit(lit - 1); 482e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 483e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 484e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 485e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (IsPowerOfTwo(lit + 1)) { 486e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpRsub; 487e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->shift = LowestSetBit(lit + 1); 488e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 489e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 490e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 491e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers op->op = kOpInvalid; 492e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return false; 493e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 494e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 495e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers// Try to convert *lit to 1~2 RegRegRegShift/RegRegShift forms. 496e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersbool ArmMir2Lir::GetEasyMultiplyTwoOps(int lit, EasyMultiplyOp* ops) { 497e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers GetEasyMultiplyOp(lit, &ops[0]); 498e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit, &ops[0])) { 499e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpInvalid; 500e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 501e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 502e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 503e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers int lit1 = lit; 504e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers uint32_t shift = LowestSetBit(lit1); 505e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit1 >> shift, &ops[0])) { 506e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpLsl; 507e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].shift = shift; 508e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 509e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 510e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 511e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers lit1 = lit - 1; 512e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers shift = LowestSetBit(lit1); 513e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit1 >> shift, &ops[0])) { 514e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpAdd; 515e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].shift = shift; 516e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 517e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 518e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 519e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers lit1 = lit + 1; 520e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers shift = LowestSetBit(lit1); 521e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (GetEasyMultiplyOp(lit1 >> shift, &ops[0])) { 522e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].op = kOpRsub; 523e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers ops[1].shift = shift; 524e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 525e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 526e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 527e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return false; 528e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 529e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 530e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersvoid ArmMir2Lir::GenEasyMultiplyTwoOps(RegStorage r_dest, RegStorage r_src, EasyMultiplyOp* ops) { 531e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers // dest = ( src << shift1) + [ src | -src | 0 ] 532e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers // dest = (dest << shift2) + [ src | -src | 0 ] 533e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers for (int i = 0; i < 2; i++) { 534e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers RegStorage r_src2; 535e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (i == 0) { 536e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers r_src2 = r_src; 537e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } else { 538e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers r_src2 = r_dest; 539e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 540e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers switch (ops[i].op) { 541e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers case kOpLsl: 542e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegImm(kOpLsl, r_dest, r_src2, ops[i].shift); 543e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 544e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers case kOpAdd: 545e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, r_dest, r_src, r_src2, EncodeShift(kArmLsl, ops[i].shift)); 546e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 547e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers case kOpRsub: 548e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpRsub, r_dest, r_src, r_src2, EncodeShift(kArmLsl, ops[i].shift)); 549e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 550e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers default: 551e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers DCHECK_NE(i, 0); 552e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers DCHECK_EQ(ops[i].op, kOpInvalid); 553e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers break; 554e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 555e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 556e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 557e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 558e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogersbool ArmMir2Lir::EasyMultiply(RegLocation rl_src, RegLocation rl_dest, int lit) { 559e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers EasyMultiplyOp ops[2]; 560e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 561e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers if (!GetEasyMultiplyTwoOps(lit, ops)) { 562e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return false; 563e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers } 564e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 565e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers rl_src = LoadValue(rl_src, kCoreReg); 566e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 567e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 568e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers GenEasyMultiplyTwoOps(rl_result.reg, rl_src.reg, ops); 569e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers StoreValue(rl_dest, rl_result); 570e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers return true; 571e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers} 572e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers 5732700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::GenRegMemCheck(ConditionCode c_code, RegStorage reg1, RegStorage base, 5742700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee int offset, ThrowKind kind) { 57552a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of GenRegMemCheck for Arm"; 576efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return NULL; 577efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 578efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 5792bf31e67694da24a19fc1f328285cebb1a4b9964Mark MendellRegLocation ArmMir2Lir::GenDivRem(RegLocation rl_dest, RegLocation rl_src1, 5802bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell RegLocation rl_src2, bool is_div, bool check_zero) { 5812bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell LOG(FATAL) << "Unexpected use of GenDivRem for Arm"; 5822bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell return rl_dest; 5832bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell} 5842bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell 5852bf31e67694da24a19fc1f328285cebb1a4b9964Mark MendellRegLocation ArmMir2Lir::GenDivRemLit(RegLocation rl_dest, RegLocation rl_src1, int lit, bool is_div) { 5862bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell LOG(FATAL) << "Unexpected use of GenDivRemLit for Arm"; 5872bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell return rl_dest; 5882bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell} 5892bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell 5902700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeRegLocation ArmMir2Lir::GenDivRemLit(RegLocation rl_dest, RegStorage reg1, int lit, bool is_div) { 5917020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 5927020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 5937020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Put the literal in a temp. 5942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage lit_temp = AllocTemp(); 5957020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison LoadConstant(lit_temp, lit); 5967020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Use the generic case for div/rem with arg2 in a register. 5977020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // TODO: The literal temp can be freed earlier during a modulus to reduce reg pressure. 5987020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison rl_result = GenDivRem(rl_result, reg1, lit_temp, is_div); 5997020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison FreeTemp(lit_temp); 6007020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 6017020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison return rl_result; 602efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 603efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 6042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeRegLocation ArmMir2Lir::GenDivRem(RegLocation rl_dest, RegStorage reg1, RegStorage reg2, 6052ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom bool is_div) { 6067020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 6077020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison if (is_div) { 6087020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Simple case, use sdiv instruction. 6092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpDiv, rl_result.reg, reg1, reg2); 6107020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison } else { 6117020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Remainder case, use the following code: 6127020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // temp = reg1 / reg2 - integer division 6137020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // temp = temp * reg2 6147020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // dest = reg1 - temp 6157020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 6162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage temp = AllocTemp(); 6177020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison OpRegRegReg(kOpDiv, temp, reg1, reg2); 6187020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison OpRegReg(kOpMul, temp, reg2); 6192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg, reg1, temp); 6207020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison FreeTemp(temp); 6217020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison } 6227020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 6237020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison return rl_result; 624efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 625efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 6262ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrombool ArmMir2Lir::GenInlinedMinMaxInt(CallInfo* info, bool is_min) { 6271fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK_EQ(cu_->instruction_set, kThumb2); 628fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee RegLocation rl_src1 = info->args[0]; 629fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee RegLocation rl_src2 = info->args[1]; 6301fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValue(rl_src1, kCoreReg); 6311fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValue(rl_src2, kCoreReg); 6321fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = InlineTarget(info); 6331fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 6342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg, rl_src2.reg); 6353da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = OpIT((is_min) ? kCondGt : kCondLt, "E"); 6362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpMov, rl_result.reg, rl_src2.reg); 6372700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpMov, rl_result.reg, rl_src1.reg); 6383da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); 6391fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 640efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 641efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 642efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 643e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Markobool ArmMir2Lir::GenInlinedPeek(CallInfo* info, OpSize size) { 644e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_address = info->args[0]; // long address 6452700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_address = NarrowRegLoc(rl_src_address); // ignore high half in info->args[1] 646e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_dest = InlineTarget(info); 647e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_address = LoadValue(rl_src_address, kCoreReg); 648e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 649e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko if (size == kLong) { 650e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Fake unaligned LDRD by two unaligned LDR instructions on ARMv7 with SCTLR.A set to 0. 6512700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (rl_address.reg.GetReg() != rl_result.reg.GetLowReg()) { 6522700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_address.reg, 0, rl_result.reg.GetLow()); 6532700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_address.reg, 4, rl_result.reg.GetHigh()); 654e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 6552700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_address.reg, 4, rl_result.reg.GetHigh()); 6562700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_address.reg, 0, rl_result.reg.GetLow()); 657e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 658e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko StoreValueWide(rl_dest, rl_result); 659e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 660e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko DCHECK(size == kSignedByte || size == kSignedHalf || size == kWord); 661e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Unaligned load with LDR and LDRSH is allowed on ARMv7 with SCTLR.A set to 0. 6622700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadBaseDisp(rl_address.reg, 0, rl_result.reg, size, INVALID_SREG); 663e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko StoreValue(rl_dest, rl_result); 664e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 665e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko return true; 666e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko} 667e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko 668e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Markobool ArmMir2Lir::GenInlinedPoke(CallInfo* info, OpSize size) { 669e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_address = info->args[0]; // long address 6702700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_address = NarrowRegLoc(rl_src_address); // ignore high half in info->args[1] 671e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_value = info->args[2]; // [size] value 672e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_address = LoadValue(rl_src_address, kCoreReg); 673e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko if (size == kLong) { 674e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Fake unaligned STRD by two unaligned STR instructions on ARMv7 with SCTLR.A set to 0. 675e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_value = LoadValueWide(rl_src_value, kCoreReg); 6762700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseDisp(rl_address.reg, 0, rl_value.reg.GetLow(), kWord); 6772700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseDisp(rl_address.reg, 4, rl_value.reg.GetHigh(), kWord); 678e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 679e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko DCHECK(size == kSignedByte || size == kSignedHalf || size == kWord); 680e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Unaligned store with STR and STRSH is allowed on ARMv7 with SCTLR.A set to 0. 681e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_value = LoadValue(rl_src_value, kCoreReg); 6822700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseDisp(rl_address.reg, 0, rl_value.reg, size); 683e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 684e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko return true; 685e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko} 686e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko 6872700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeevoid ArmMir2Lir::OpLea(RegStorage r_base, RegStorage reg1, RegStorage reg2, int scale, int offset) { 68852a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of OpLea for Arm"; 689efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 690efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 691dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid ArmMir2Lir::OpTlsCmp(ThreadOffset<4> offset, int val) { 69252a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of OpTlsCmp for Arm"; 693efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 694efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 6951c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Markobool ArmMir2Lir::GenInlinedCas(CallInfo* info, bool is_long, bool is_object) { 6961fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK_EQ(cu_->instruction_set, kThumb2); 697fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee // Unused - RegLocation rl_src_unsafe = info->args[0]; 6981c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_obj = info->args[1]; // Object - known non-null 6991c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_offset = info->args[2]; // long low 7002700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_offset = NarrowRegLoc(rl_src_offset); // ignore high half in info->args[3] 7011c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_expected = info->args[4]; // int, long or Object 7023e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // If is_long, high half is in info->args[5] 7033e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_src_new_value = info->args[is_long ? 6 : 5]; // int, long or Object 7043e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // If is_long, high half is in info->args[7] 7051fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = InlineTarget(info); // boolean place for result 706efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7073e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // We have only 5 temporary registers available and actually only 4 if the InlineTarget 7083e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // above locked one of the temps. For a straightforward CAS64 we need 7 registers: 7093e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // r_ptr (1), new_value (2), expected(2) and ldrexd result (2). If neither expected nor 7103e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // new_value is in a non-temp core register we shall reload them in the ldrex/strex loop 7113e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // into the same temps, reducing the number of required temps down to 5. We shall work 7123e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // around the potentially locked temp by using LR for r_ptr, unconditionally. 7133e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // TODO: Pass information about the need for more temps to the stack frame generation 7143e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // code so that we can rely on being able to allocate enough temps. 7153e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko DCHECK(!reg_pool_->core_regs[rARM_LR].is_temp); 7163e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko MarkTemp(rARM_LR); 7173e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko FreeTemp(rARM_LR); 7183e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko LockTemp(rARM_LR); 7193e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko bool load_early = true; 7203e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (is_long) { 7212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee int expected_reg = is_long ? rl_src_expected.reg.GetLowReg() : rl_src_expected.reg.GetReg(); 7222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee int new_val_reg = is_long ? rl_src_new_value.reg.GetLowReg() : rl_src_new_value.reg.GetReg(); 7232700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool expected_is_core_reg = rl_src_expected.location == kLocPhysReg && !IsFpReg(expected_reg); 7242700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool new_value_is_core_reg = rl_src_new_value.location == kLocPhysReg && !IsFpReg(new_val_reg); 7252700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool expected_is_good_reg = expected_is_core_reg && !IsTemp(expected_reg); 7262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool new_value_is_good_reg = new_value_is_core_reg && !IsTemp(new_val_reg); 7273e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 7283e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!expected_is_good_reg && !new_value_is_good_reg) { 7293e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // None of expected/new_value is non-temp reg, need to load both late 7303e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko load_early = false; 7313e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Make sure they are not in the temp regs and the load will not be skipped. 7323e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (expected_is_core_reg) { 7332700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FlushRegWide(rl_src_expected.reg); 7343e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(rl_src_expected.s_reg_low); 7353e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(GetSRegHi(rl_src_expected.s_reg_low)); 7363e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_src_expected.location = kLocDalvikFrame; 7373e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 7383e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (new_value_is_core_reg) { 7392700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FlushRegWide(rl_src_new_value.reg); 7403e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(rl_src_new_value.s_reg_low); 7413e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(GetSRegHi(rl_src_new_value.s_reg_low)); 7423e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_src_new_value.location = kLocDalvikFrame; 7433e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 7443e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 7453e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 746efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7471bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee // Release store semantics, get the barrier out of the way. TODO: revisit 7481fd3346740dfb7f47be9922312b68a4227fada96buzbee GenMemBarrier(kStoreLoad); 749efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7501fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_object = LoadValue(rl_src_obj, kCoreReg); 7513e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_new_value; 7523e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!is_long) { 7533e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_new_value = LoadValue(rl_src_new_value, kCoreReg); 7543e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else if (load_early) { 7553e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_new_value = LoadValueWide(rl_src_new_value, kCoreReg); 7563e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 757efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7581c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko if (is_object && !mir_graph_->IsConstantNullRef(rl_new_value)) { 759efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Mark card for object assuming new value is stored. 7602700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee MarkGCCard(rl_new_value.reg, rl_object.reg); 761efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 762efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7631fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_offset = LoadValue(rl_src_offset, kCoreReg); 764efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7652700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_ptr = rs_rARM_LR; 7662700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdd, r_ptr, rl_object.reg, rl_offset.reg); 767efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 768fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee // Free now unneeded rl_object and rl_offset to give more temps. 7691fd3346740dfb7f47be9922312b68a4227fada96buzbee ClobberSReg(rl_object.s_reg_low); 77000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_object.reg.GetReg()); 7711fd3346740dfb7f47be9922312b68a4227fada96buzbee ClobberSReg(rl_offset.s_reg_low); 77200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_offset.reg.GetReg()); 773efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7743e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_expected; 7753e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!is_long) { 7763e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_expected = LoadValue(rl_src_expected, kCoreReg); 7773e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else if (load_early) { 7783e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_expected = LoadValueWide(rl_src_expected, kCoreReg); 7793e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 78000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee // NOTE: partially defined rl_expected & rl_new_value - but we just want the regs. 7812700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee int low_reg = AllocTemp().GetReg(); 7822700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee int high_reg = AllocTemp().GetReg(); 78300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee rl_new_value.reg = RegStorage(RegStorage::k64BitPair, low_reg, high_reg); 78400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee rl_expected = rl_new_value; 7853e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 7863e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 7873e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // do { 7883e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // tmp = [r_ptr] - expected; 7893e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // } while (tmp == 0 && failure([r_ptr] <- r_new_value)); 7903e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // result = tmp != 0; 791efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7922700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_tmp = AllocTemp(); 7932de2aa1a96dfa5bebc004f29b5dbfafd37039ceeJeff Hao LIR* target = NewLIR0(kPseudoTargetLabel); 7943e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 7953da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison LIR* it = nullptr; 7963e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (is_long) { 7972700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_tmp_high = AllocTemp(); 7983e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 7992700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadValueDirectWide(rl_src_expected, rl_expected.reg); 8003e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Ldrexd, r_tmp.GetReg(), r_tmp_high.GetReg(), r_ptr.GetReg()); 8022700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp, rl_expected.reg.GetLow()); 8032700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp_high, rl_expected.reg.GetHigh()); 8043e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 8052700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadValueDirectWide(rl_src_new_value, rl_new_value.reg); 8063e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8073e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Make sure we use ORR that sets the ccode 8082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (ARM_LOWREG(r_tmp.GetReg()) && ARM_LOWREG(r_tmp_high.GetReg())) { 8092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR2(kThumbOrr, r_tmp.GetReg(), r_tmp_high.GetReg()); 8103e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 8112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, r_tmp.GetReg(), r_tmp.GetReg(), r_tmp_high.GetReg(), 0); 8123e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8133e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko FreeTemp(r_tmp_high); // Now unneeded 8143e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 8153e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 8163da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(kCondEq, "T"); 8172700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Strexd /* eq */, r_tmp.GetReg(), rl_new_value.reg.GetLowReg(), rl_new_value.reg.GetHighReg(), r_ptr.GetReg()); 8183e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 8193e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 8202700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Ldrex, r_tmp.GetReg(), r_ptr.GetReg(), 0); 8212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp, rl_expected.reg); 8223e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 8233da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(kCondEq, "T"); 8242700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Strex /* eq */, r_tmp.GetReg(), rl_new_value.reg.GetReg(), r_ptr.GetReg(), 0); 8253e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8263e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 8273e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Still one conditional left from OpIT(kCondEq, "T") from either branch 8283e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko OpRegImm(kOpCmp /* eq */, r_tmp, 1); 8293da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); 83043a065ce1dda78e963868f9753a6e263721af927Dave Allison 8312de2aa1a96dfa5bebc004f29b5dbfafd37039ceeJeff Hao OpCondBranch(kCondEq, target); 832efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8333e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 8342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FreeTemp(rl_expected.reg); // Now unneeded. 8353e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 8363e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 8373e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // result := (tmp1 != 0) ? 0 : 1; 8383e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 8392700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpRsub, rl_result.reg, r_tmp, 1); 8403e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 8413da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison it = OpIT(kCondUlt, ""); 8422700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, 0); /* cc */ 8433e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko FreeTemp(r_tmp); // Now unneeded. 8443da67a558f1fd3d8a157d8044d521753f3f99ac8Dave Allison OpEndIT(it); // Barrier to terminate OpIT. 8453e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 8461fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 847efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8483e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Now, restore lr to its non-temp status. 8493e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko Clobber(rARM_LR); 8503e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko UnmarkTemp(rARM_LR); 851efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 852efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 853efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8542700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpPcRelLoad(RegStorage reg, LIR* target) { 8552700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return RawLIR(current_dalvik_offset_, kThumb2LdrPcRel12, reg.GetReg(), 0, 0, 0, 0, target); 856efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 857efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8582700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpVldm(RegStorage r_base, int count) { 8592700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumb2Vldms, r_base.GetReg(), fr0, count); 860efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 861efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8622700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpVstm(RegStorage r_base, int count) { 8632700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumb2Vstms, r_base.GetReg(), fr0, count); 864efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 865efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8661fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenMultiplyByTwoBitMultiplier(RegLocation rl_src, 86702031b185b4653e6c72e21f7a51238b903f6d638buzbee RegLocation rl_result, int lit, 8682ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom int first_bit, int second_bit) { 869e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, rl_result.reg, rl_src.reg, rl_src.reg, 870fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee EncodeShift(kArmLsl, second_bit - first_bit)); 871fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (first_bit != 0) { 8722700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg, rl_result.reg, first_bit); 873efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 874efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 875efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8762700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeevoid ArmMir2Lir::GenDivZeroCheck(RegStorage reg) { 8772700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(reg.IsPair()); // TODO: support k64BitSolo. 8782700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 8792700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, t_reg.GetReg(), reg.GetLowReg(), reg.GetHighReg(), 0); 8801fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 8811fd3346740dfb7f47be9922312b68a4227fada96buzbee GenCheck(kCondEq, kThrowDivZero); 882efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 883efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 884efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Test suspend flag, return target of taken suspend branch 8852ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* ArmMir2Lir::OpTestSuspend(LIR* target) { 8861fd3346740dfb7f47be9922312b68a4227fada96buzbee NewLIR2(kThumbSubRI8, rARM_SUSPEND, 1); 8871fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpCondBranch((target == NULL) ? kCondEq : kCondNe, target); 888efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 889efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 890efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Decrement register and branch on condition 8912700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpDecAndBranch(ConditionCode c_code, RegStorage reg, LIR* target) { 892efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Combine sub & test using sub setflags encoding here 893dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko OpRegRegImm(kOpSub, reg, reg, 1); // For value == 1, this should set flags. 894dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 8951fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpCondBranch(c_code, target); 896efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 897efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8982ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenMemBarrier(MemBarrierKind barrier_kind) { 899efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#if ANDROID_SMP != 0 90099ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // Start off with using the last LIR as the barrier. If it is not enough, then we will generate one. 90199ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru LIR* barrier = last_lir_insn_; 90299ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 903fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int dmb_flavor; 9041bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee // TODO: revisit Arm barrier kinds 905fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee switch (barrier_kind) { 906b122a4bbed34ab22b4c1541ee25e5cf22f12a926Ian Rogers case kLoadStore: dmb_flavor = kISH; break; 907b122a4bbed34ab22b4c1541ee25e5cf22f12a926Ian Rogers case kLoadLoad: dmb_flavor = kISH; break; 908b122a4bbed34ab22b4c1541ee25e5cf22f12a926Ian Rogers case kStoreStore: dmb_flavor = kISHST; break; 909b122a4bbed34ab22b4c1541ee25e5cf22f12a926Ian Rogers case kStoreLoad: dmb_flavor = kISH; break; 9101bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee default: 911fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(FATAL) << "Unexpected MemBarrierKind: " << barrier_kind; 912fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee dmb_flavor = kSY; // quiet gcc. 9131bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee break; 9141bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee } 91599ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 91699ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // If the same barrier already exists, don't generate another. 91799ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru if (barrier == nullptr 91899ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru || (barrier != nullptr && (barrier->opcode != kThumb2Dmb || barrier->operands[0] != dmb_flavor))) { 91999ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru barrier = NewLIR1(kThumb2Dmb, dmb_flavor); 92099ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru } 92199ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 92299ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // At this point we must have a memory barrier. Mark it as a scheduling barrier as well. 92399ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru DCHECK(!barrier->flags.use_def_invalid); 92499ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru barrier->u.m.def_mask = ENCODE_ALL; 925efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#endif 926efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 927efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 9282ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenNegLong(RegLocation rl_dest, RegLocation rl_src) { 9291fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, kCoreReg); 9301fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 9312700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage z_reg = AllocTemp(); 9321fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstantNoClobber(z_reg, 0); 933efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Check for destructive overlap 9342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (rl_result.reg.GetLowReg() == rl_src.reg.GetHighReg()) { 9352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 9362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg.GetLow(), z_reg, rl_src.reg.GetLow()); 9372700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSbc, rl_result.reg.GetHigh(), z_reg, t_reg); 9381fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 939efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 9402700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg.GetLow(), z_reg, rl_src.reg.GetLow()); 9412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSbc, rl_result.reg.GetHigh(), z_reg, rl_src.reg.GetHigh()); 942efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 9431fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(z_reg); 9441fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 945efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 946efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 947e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenMulLong(Instruction::Code opcode, RegLocation rl_dest, 948e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell RegLocation rl_src1, RegLocation rl_src2) { 9494ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee /* 950d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * tmp1 = src1.hi * src2.lo; // src1.hi is no longer needed 951d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * dest = src1.lo * src2.lo; 952d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * tmp1 += src1.lo * src2.hi; 953d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * dest.hi += tmp1; 954d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * 955d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * To pull off inline multiply, we have a worst-case requirement of 7 temporary 9564ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * registers. Normally for Arm, we get 5. We can get to 6 by including 9574ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * lr in the temp set. The only problematic case is all operands and result are 9584ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * distinct, and none have been promoted. In that case, we can succeed by aggressively 9594ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * freeing operand temp registers after they are no longer needed. All other cases 9604ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * can proceed normally. We'll just punt on the case of the result having a misaligned 9614ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * overlap with either operand and send that case to a runtime handler. 9624ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee */ 9634ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee RegLocation rl_result; 9641fd3346740dfb7f47be9922312b68a4227fada96buzbee if (BadOverlap(rl_src1, rl_dest) || (BadOverlap(rl_src2, rl_dest))) { 965dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ThreadOffset<4> func_offset = QUICK_ENTRYPOINT_OFFSET(4, pLmul); 9661fd3346740dfb7f47be9922312b68a4227fada96buzbee FlushAllRegs(); 9671fd3346740dfb7f47be9922312b68a4227fada96buzbee CallRuntimeHelperRegLocationRegLocation(func_offset, rl_src1, rl_src2, false); 9681fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = GetReturnWide(false); 9691fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 9704ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return; 9714ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 972d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 973d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu rl_src1 = LoadValueWide(rl_src1, kCoreReg); 974d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu rl_src2 = LoadValueWide(rl_src2, kCoreReg); 975d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 976d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu int reg_status = 0; 9772700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage res_lo; 9782700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage res_hi; 9792700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool dest_promoted = rl_dest.location == kLocPhysReg && rl_dest.reg.Valid() && 9802700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee !IsTemp(rl_dest.reg.GetLowReg()) && !IsTemp(rl_dest.reg.GetHighReg()); 9812700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool src1_promoted = !IsTemp(rl_src1.reg.GetLowReg()) && !IsTemp(rl_src1.reg.GetHighReg()); 9822700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool src2_promoted = !IsTemp(rl_src2.reg.GetLowReg()) && !IsTemp(rl_src2.reg.GetHighReg()); 983d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // Check if rl_dest is *not* either operand and we have enough temp registers. 984d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if ((rl_dest.s_reg_low != rl_src1.s_reg_low && rl_dest.s_reg_low != rl_src2.s_reg_low) && 985d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu (dest_promoted || src1_promoted || src2_promoted)) { 986d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // In this case, we do not need to manually allocate temp registers for result. 987d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu rl_result = EvalLoc(rl_dest, kCoreReg, true); 9882700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res_lo = rl_result.reg.GetLow(); 9892700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res_hi = rl_result.reg.GetHigh(); 990d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } else { 991d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu res_lo = AllocTemp(); 992d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if ((rl_src1.s_reg_low == rl_src2.s_reg_low) || src1_promoted || src2_promoted) { 993d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // In this case, we have enough temp registers to be allocated for result. 994d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu res_hi = AllocTemp(); 995d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu reg_status = 1; 996d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } else { 997d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // In this case, all temps are now allocated. 998d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // res_hi will be allocated after we can free src1_hi. 999d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu reg_status = 2; 1000d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } 1001d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } 1002d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 10034ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Temporarily add LR to the temp pool, and assign it to tmp1 10041fd3346740dfb7f47be9922312b68a4227fada96buzbee MarkTemp(rARM_LR); 10051fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(rARM_LR); 10062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage tmp1 = rs_rARM_LR; 10071fd3346740dfb7f47be9922312b68a4227fada96buzbee LockTemp(rARM_LR); 10084ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 10092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (rl_src1.reg == rl_src2.reg) { 10102700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_hi.Valid()); 10112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_lo.Valid()); 10122700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2MulRRR, tmp1.GetReg(), rl_src1.reg.GetLowReg(), rl_src1.reg.GetHighReg()); 10132700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Umull, res_lo.GetReg(), res_hi.GetReg(), rl_src1.reg.GetLowReg(), 10142700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src1.reg.GetLowReg()); 1015e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, res_hi, res_hi, tmp1, EncodeShift(kArmLsl, 1)); 10164ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 10172700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2MulRRR, tmp1.GetReg(), rl_src2.reg.GetLowReg(), rl_src1.reg.GetHighReg()); 1018d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if (reg_status == 2) { 10192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(!res_hi.Valid()); 10202700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK_NE(rl_src1.reg.GetLowReg(), rl_src2.reg.GetLowReg()); 102100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee DCHECK_NE(rl_src1.reg.GetHighReg(), rl_src2.reg.GetHighReg()); 102200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_src1.reg.GetHighReg()); 1023d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu res_hi = AllocTemp(); 10244ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 10252700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_hi.Valid()); 10262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_lo.Valid()); 10272700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Umull, res_lo.GetReg(), res_hi.GetReg(), rl_src2.reg.GetLowReg(), 10282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src1.reg.GetLowReg()); 10292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Mla, tmp1.GetReg(), rl_src1.reg.GetLowReg(), rl_src2.reg.GetHighReg(), 10302700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee tmp1.GetReg()); 10312700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2AddRRR, res_hi.GetReg(), tmp1.GetReg(), res_hi.GetReg(), 0); 1032d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if (reg_status == 2) { 1033d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // Clobber rl_src1 since it was corrupted. 10342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FreeTemp(rl_src1.reg); 10352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee Clobber(rl_src1.reg); 10364ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 10374ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1038d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 10394ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Now, restore lr to its non-temp status. 1040d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu FreeTemp(tmp1); 10411fd3346740dfb7f47be9922312b68a4227fada96buzbee Clobber(rARM_LR); 10421fd3346740dfb7f47be9922312b68a4227fada96buzbee UnmarkTemp(rARM_LR); 1043d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 1044d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if (reg_status != 0) { 1045d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // We had manually allocated registers for rl_result. 1046d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // Now construct a RegLocation. 1047d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu rl_result = GetReturnWide(false); // Just using as a template. 10482700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_result.reg = RegStorage::MakeRegPair(res_lo, res_hi); 1049d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } 1050d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 1051d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu StoreValueWide(rl_dest, rl_result); 10524ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 10534ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1054e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenAddLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 10552ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 105652a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of GenAddLong for Arm"; 1057efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1058efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1059e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenSubLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 10602ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 106152a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of GenSubLong for Arm"; 1062efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1063efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1064e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenAndLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 10652ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 106652a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of GenAndLong for Arm"; 1067efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1068efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1069e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenOrLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 10702ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 107152a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of GenOrLong for Arm"; 1072efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1073efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1074e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenXorLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 10752ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 1076efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LOG(FATAL) << "Unexpected use of genXoLong for Arm"; 1077efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 1078efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1079e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee/* 1080e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * Generate array load 1081e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee */ 10821fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArrayGet(int opt_flags, OpSize size, RegLocation rl_array, 1083a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers RegLocation rl_index, RegLocation rl_dest, int scale) { 1084e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee RegisterClass reg_class = oat_reg_class_by_size(size); 10852dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers int len_offset = mirror::Array::LengthOffset().Int32Value(); 1086e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee int data_offset; 1087e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee RegLocation rl_result; 10884ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee bool constant_index = rl_index.is_const; 10891fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_array = LoadValue(rl_array, kCoreReg); 10904ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 10911fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_index = LoadValue(rl_index, kCoreReg); 10924ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1093e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1094e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_dest.wide) { 10952dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int64_t)).Int32Value(); 1096e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 10972dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int32_t)).Int32Value(); 1098e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1099e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 11004ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // If index is constant, just fold it into the data offset 11014ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 11021fd3346740dfb7f47be9922312b68a4227fada96buzbee data_offset += mir_graph_->ConstantValue(rl_index) << scale; 11034ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 11044ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1105e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* null object? */ 11062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenNullCheck(rl_array.reg, opt_flags); 1107e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1108e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee bool needs_range_check = (!(opt_flags & MIR_IGNORE_RANGE_CHECK)); 11092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_len; 1110e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 11111fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_len = AllocTemp(); 1112e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* Get len */ 11132700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_array.reg, len_offset, reg_len); 1114b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1115b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison } else { 11162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee ForceImplicitNullCheck(rl_array.reg, opt_flags); 1117e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 11184ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_dest.wide || rl_dest.fp || constant_index) { 11192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr; 11204ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 11212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; // NOTE: must not alter reg_ptr in constant case. 11224ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 11234ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // No special indexed operation, lea + load w/ displacement 11241fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_ptr = AllocTemp(); 1125e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, reg_ptr, rl_array.reg, rl_index.reg, EncodeShift(kArmLsl, scale)); 112600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_index.reg.GetReg()); 11274ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 11281fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, reg_class, true); 1129e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1130e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 11314ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 11321fd3346740dfb7f47be9922312b68a4227fada96buzbee GenImmedCheck(kCondLs, reg_len, mir_graph_->ConstantValue(rl_index), kThrowConstantArrayBounds); 11334ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 11342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenRegRegCheck(kCondLs, reg_len, rl_index.reg, kThrowArrayBounds); 11354ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 11361fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1137e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1138e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_dest.wide) { 11392700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadBaseDispWide(reg_ptr, data_offset, rl_result.reg, INVALID_SREG); 1140b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 11414ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 11421fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 11434ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 11441fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 1145e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 11462700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadBaseDisp(reg_ptr, data_offset, rl_result.reg, size, INVALID_SREG); 1147b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 11484ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 11491fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 11504ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 11511fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 1152e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1153e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1154e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee // Offset base, then use indexed load 11552700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr = AllocTemp(); 11562700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAdd, reg_ptr, rl_array.reg, data_offset); 115700e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_array.reg.GetReg()); 11581fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, reg_class, true); 1159e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1160e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 11612700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenRegRegCheck(kCondUge, rl_index.reg, reg_len, kThrowArrayBounds); 11621fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1163e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 11642700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadBaseIndexed(reg_ptr, rl_index.reg, rl_result.reg, scale, size); 1165b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 11661fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 11671fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 1168e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1169e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee} 1170e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1171e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee/* 1172e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * Generate array store 1173e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * 1174e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee */ 11751fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArrayPut(int opt_flags, OpSize size, RegLocation rl_array, 1176a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers RegLocation rl_index, RegLocation rl_src, int scale, bool card_mark) { 1177e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee RegisterClass reg_class = oat_reg_class_by_size(size); 11782dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers int len_offset = mirror::Array::LengthOffset().Int32Value(); 11794ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee bool constant_index = rl_index.is_const; 1180e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1181a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers int data_offset; 1182a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers if (size == kLong || size == kDouble) { 11832dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int64_t)).Int32Value(); 1184e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 11852dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int32_t)).Int32Value(); 1186e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1187e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 11884ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // If index is constant, just fold it into the data offset. 11894ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 11901fd3346740dfb7f47be9922312b68a4227fada96buzbee data_offset += mir_graph_->ConstantValue(rl_index) << scale; 11914ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 11924ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 11931fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_array = LoadValue(rl_array, kCoreReg); 11944ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 11951fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_index = LoadValue(rl_index, kCoreReg); 11964ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 11974ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 11982700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr; 1199773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers bool allocated_reg_ptr_temp = false; 12004ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 12012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; 120200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee } else if (IsTemp(rl_array.reg.GetReg()) && !card_mark) { 120300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee Clobber(rl_array.reg.GetReg()); 12042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; 1205e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1206773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers allocated_reg_ptr_temp = true; 12071fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_ptr = AllocTemp(); 1208e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1209e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1210e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* null object? */ 12112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenNullCheck(rl_array.reg, opt_flags); 1212e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1213e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee bool needs_range_check = (!(opt_flags & MIR_IGNORE_RANGE_CHECK)); 12142700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_len; 1215e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 12161fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_len = AllocTemp(); 12177934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // NOTE: max live temps(4) here. 1218e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* Get len */ 12192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_array.reg, len_offset, reg_len); 1220b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1221b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison } else { 12222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee ForceImplicitNullCheck(rl_array.reg, opt_flags); 1223e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1224e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* at this point, reg_ptr points to array, 2 live temps */ 12254ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src.wide || rl_src.fp || constant_index) { 1226e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_src.wide) { 12271fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, reg_class); 1228e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 12291fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, reg_class); 1230e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 12314ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 1232e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpAdd, reg_ptr, rl_array.reg, rl_index.reg, EncodeShift(kArmLsl, scale)); 12334ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1234e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 12354ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 12361fd3346740dfb7f47be9922312b68a4227fada96buzbee GenImmedCheck(kCondLs, reg_len, mir_graph_->ConstantValue(rl_index), kThrowConstantArrayBounds); 12374ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 12382700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenRegRegCheck(kCondLs, reg_len, rl_index.reg, kThrowArrayBounds); 12394ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12401fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1241e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 12424ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1243e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_src.wide) { 12442700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseDispWide(reg_ptr, data_offset, rl_src.reg); 1245e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 12462700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseDisp(reg_ptr, data_offset, rl_src.reg, size); 1247e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1248b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1249e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1250e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* reg_ptr -> array data */ 12512700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAdd, reg_ptr, rl_array.reg, data_offset); 12521fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, reg_class); 1253e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 12542700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenRegRegCheck(kCondUge, rl_index.reg, reg_len, kThrowArrayBounds); 12551fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1256e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 12572700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseIndexed(reg_ptr, rl_index.reg, rl_src.reg, scale, size); 1258b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1259e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1260773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers if (allocated_reg_ptr_temp) { 12611fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 12624ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1263a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers if (card_mark) { 12642700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee MarkGCCard(rl_src.reg, rl_array.reg); 12656a791b26577a61fd14f4836c795d616869bd2957buzbee } 1266e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee} 1267e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1268a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers 12691fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenShiftImmOpLong(Instruction::Code opcode, 12702ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_dest, RegLocation rl_src, RegLocation rl_shift) { 12711fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, kCoreReg); 12724ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Per spec, we only care about low 6 bits of shift amount. 12731fd3346740dfb7f47be9922312b68a4227fada96buzbee int shift_amount = mir_graph_->ConstantValue(rl_shift) & 0x3f; 12744ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 0) { 12751fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_src); 1276a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 12774ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12781fd3346740dfb7f47be9922312b68a4227fada96buzbee if (BadOverlap(rl_src, rl_dest)) { 12791fd3346740dfb7f47be9922312b68a4227fada96buzbee GenShiftOpLong(opcode, rl_dest, rl_src, rl_shift); 1280a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 12814ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12821fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 1283df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (opcode) { 12844ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHL_LONG: 12854ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHL_LONG_2ADDR: 12864ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 1) { 12872700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdd, rl_result.reg.GetLow(), rl_src.reg.GetLow(), rl_src.reg.GetLow()); 12882700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdc, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), rl_src.reg.GetHigh()); 12894ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount == 32) { 12902700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetHigh(), rl_src.reg); 12912700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetLow(), 0); 12924ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 12932700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetHigh(), rl_src.reg.GetLow(), shift_amount - 32); 12942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetLow(), 0); 12954ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 12962700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 1297e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpOr, rl_result.reg.GetHigh(), rl_result.reg.GetHigh(), rl_src.reg.GetLow(), 12984ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsr, 32 - shift_amount)); 12992700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetLow(), rl_src.reg.GetLow(), shift_amount); 13004ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13014ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 13024ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHR_LONG: 13034ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHR_LONG_2ADDR: 13044ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 32) { 13052700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetLow(), rl_src.reg.GetHigh()); 13062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), 31); 13074ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 13082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetLow(), rl_src.reg.GetHigh(), shift_amount - 32); 13092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), 31); 13104ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 13112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 13122700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, t_reg, rl_src.reg.GetLow(), shift_amount); 1313e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpOr, rl_result.reg.GetLow(), t_reg, rl_src.reg.GetHigh(), 13144ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsl, 32 - shift_amount)); 13151fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 13162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 13174ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13184ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 13194ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::USHR_LONG: 13204ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::USHR_LONG_2ADDR: 13214ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 32) { 13222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetLow(), rl_src.reg.GetHigh()); 13232700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetHigh(), 0); 13244ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 13252700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, rl_result.reg.GetLow(), rl_src.reg.GetHigh(), shift_amount - 32); 13262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetHigh(), 0); 13274ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 13282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 13292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, t_reg, rl_src.reg.GetLow(), shift_amount); 1330e2143c0a4af68c08e811885eb2f3ea5bfdb21ab6Ian Rogers OpRegRegRegShift(kOpOr, rl_result.reg.GetLow(), t_reg, rl_src.reg.GetHigh(), 13314ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsl, 32 - shift_amount)); 13321fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 13332700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 13344ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13354ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 13364ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 13374ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected case"; 13384ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13391fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 13404ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 13414ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 13421fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArithImmOpLong(Instruction::Code opcode, 13432ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_dest, RegLocation rl_src1, RegLocation rl_src2) { 13444ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((opcode == Instruction::SUB_LONG_2ADDR) || (opcode == Instruction::SUB_LONG)) { 13454ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!rl_src2.is_const) { 13464ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Don't bother with special handling for subtract from immediate. 13471fd3346740dfb7f47be9922312b68a4227fada96buzbee GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2); 1348a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 13494ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13504ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 13514ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Normalize 13524ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!rl_src2.is_const) { 13534ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee DCHECK(rl_src1.is_const); 135458af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko std::swap(rl_src1, rl_src2); 13554ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13564ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13571fd3346740dfb7f47be9922312b68a4227fada96buzbee if (BadOverlap(rl_src1, rl_dest)) { 13581fd3346740dfb7f47be9922312b68a4227fada96buzbee GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2); 1359a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 13604ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13614ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee DCHECK(rl_src2.is_const); 13621fd3346740dfb7f47be9922312b68a4227fada96buzbee int64_t val = mir_graph_->ConstantValueWide(rl_src2); 13634ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee uint32_t val_lo = Low32Bits(val); 13644ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee uint32_t val_hi = High32Bits(val); 13654ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t mod_imm_lo = ModifiedImmediate(val_lo); 13664ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t mod_imm_hi = ModifiedImmediate(val_hi); 13674ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 13684ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Only a subset of add/sub immediate instructions set carry - so bail if we don't fit 1369df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (opcode) { 13704ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG: 13714ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG_2ADDR: 13724ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG: 13734ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG_2ADDR: 13744ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((mod_imm_lo < 0) || (mod_imm_hi < 0)) { 13751fd3346740dfb7f47be9922312b68a4227fada96buzbee GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2); 1376a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 13774ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13784ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 13794ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 13804ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 13814ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13821fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 13831fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 13844ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // NOTE: once we've done the EvalLoc on dest, we can no longer bail. 13854ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee switch (opcode) { 13864ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG: 13874ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG_2ADDR: 13882700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2AddRRI8M, rl_result.reg.GetLowReg(), rl_src1.reg.GetLowReg(), mod_imm_lo); 138900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee NewLIR3(kThumb2AdcRRI8M, rl_result.reg.GetHighReg(), rl_src1.reg.GetHighReg(), mod_imm_hi); 13904ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 13914ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::OR_LONG: 13924ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::OR_LONG_2ADDR: 13932700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if ((val_lo != 0) || (rl_result.reg.GetLowReg() != rl_src1.reg.GetLowReg())) { 13942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpOr, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 13954ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 139600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if ((val_hi != 0) || (rl_result.reg.GetHighReg() != rl_src1.reg.GetHighReg())) { 13972700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpOr, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 13984ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13994ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 14004ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::XOR_LONG: 14014ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::XOR_LONG_2ADDR: 14022700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpXor, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 14032700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpXor, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 14044ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 14054ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::AND_LONG: 14064ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::AND_LONG_2ADDR: 14072700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if ((val_lo != 0xffffffff) || (rl_result.reg.GetLowReg() != rl_src1.reg.GetLowReg())) { 14082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAnd, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 14094ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 141000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if ((val_hi != 0xffffffff) || (rl_result.reg.GetHighReg() != rl_src1.reg.GetHighReg())) { 14112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAnd, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 14124ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 14134ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 14144ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG_2ADDR: 14154ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG: 14162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2SubRRI8M, rl_result.reg.GetLowReg(), rl_src1.reg.GetLowReg(), mod_imm_lo); 141700e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee NewLIR3(kThumb2SbcRRI8M, rl_result.reg.GetHighReg(), rl_src1.reg.GetHighReg(), mod_imm_hi); 14184ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 14194ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 14204ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected opcode " << opcode; 14214ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 14221fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 14234ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 14244ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1425efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} // namespace art 1426