int_arm.cc revision 2700f7e1edbcd2518f4978e4cd0e05a4149f91b6
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 70efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 71efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * 64-bit 3way compare function. 72efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov rX, #-1 73efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * cmp op1hi, op2hi 74efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * blt done 75efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * bgt flip 76efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * sub rX, op1lo, op2lo (treat as unsigned) 77efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * beq done 78efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * ite hi 79efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov(hi) rX, #-1 80efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * mov(!hi) rX, #1 81efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * flip: 82efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * neg rX 83efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * done: 84efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 851fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenCmpLong(RegLocation rl_dest, RegLocation rl_src1, 862ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 87efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* target1; 88efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* target2; 891fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 901fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValueWide(rl_src2, kCoreReg); 912700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 921fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg, -1); 932700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetHigh(), rl_src2.reg.GetHigh()); 941fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch1 = OpCondBranch(kCondLt, NULL); 951fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch2 = OpCondBranch(kCondGt, NULL); 962700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, t_reg, rl_src1.reg, rl_src2.reg); 971fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* branch3 = OpCondBranch(kCondEq, NULL); 981fd3346740dfb7f47be9922312b68a4227fada96buzbee 991fd3346740dfb7f47be9922312b68a4227fada96buzbee OpIT(kCondHi, "E"); 1002700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR2(kThumb2MovI8M, t_reg.GetReg(), ModifiedImmediate(-1)); 1011fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg, 1); 1021fd3346740dfb7f47be9922312b68a4227fada96buzbee GenBarrier(); 1031fd3346740dfb7f47be9922312b68a4227fada96buzbee 1041fd3346740dfb7f47be9922312b68a4227fada96buzbee target2 = NewLIR0(kPseudoTargetLabel); 1051fd3346740dfb7f47be9922312b68a4227fada96buzbee OpRegReg(kOpNeg, t_reg, t_reg); 1061fd3346740dfb7f47be9922312b68a4227fada96buzbee 1071fd3346740dfb7f47be9922312b68a4227fada96buzbee target1 = NewLIR0(kPseudoTargetLabel); 108fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee 1097934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom RegLocation rl_temp = LocCReturn(); // Just using as template, will change 1102700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_temp.reg.SetReg(t_reg.GetReg()); 1111fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_temp); 1121fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 113efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 114cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee branch1->target = target1; 115cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee branch2->target = target2; 116efc6369224b036a1fb77849f7ae65b3492c832c0buzbee branch3->target = branch1->target; 117efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 118efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1191fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenFusedLongCmpImmBranch(BasicBlock* bb, RegLocation rl_src1, 1202ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom int64_t val, ConditionCode ccode) { 1214ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t val_lo = Low32Bits(val); 1224ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t val_hi = High32Bits(val); 1234274889d48ef82369bf2c1ca70d84689b4f9e93aBrian Carlstrom DCHECK_GE(ModifiedImmediate(val_lo), 0); 1244274889d48ef82369bf2c1ca70d84689b4f9e93aBrian Carlstrom DCHECK_GE(ModifiedImmediate(val_hi), 0); 1250d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* taken = &block_label_list_[bb->taken]; 1260d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* not_taken = &block_label_list_[bb->fall_through]; 1271fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 1282700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage low_reg = rl_src1.reg.GetLow(); 1292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage high_reg = rl_src1.reg.GetHigh(); 1304ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 13158af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko if (val == 0 && (ccode == kCondEq || ccode == kCondNe)) { 1322700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 1332700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, t_reg.GetReg(), low_reg.GetReg(), high_reg.GetReg(), 0); 13458af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko FreeTemp(t_reg); 13558af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko OpCondBranch(ccode, taken); 13658af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko return; 13758af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko } 13858af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko 139df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (ccode) { 1404ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondEq: 1414ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondNe: 14258af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko OpCmpImmBranch(kCondNe, high_reg, val_hi, (ccode == kCondEq) ? not_taken : taken); 1434ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1444ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondLt: 1451fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, taken); 1461fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, not_taken); 14758af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUlt; 1484ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1494ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondLe: 1501fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, taken); 1511fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, not_taken); 1524ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = kCondLs; 1534ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1544ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondGt: 1551fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, taken); 1561fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, not_taken); 1574ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = kCondHi; 1584ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1594ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondGe: 1601fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondGt, high_reg, val_hi, taken); 1611fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(kCondLt, high_reg, val_hi, not_taken); 16258af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUge; 1634ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 1644ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 1654ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected ccode: " << ccode; 1664ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1671fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCmpImmBranch(ccode, low_reg, val_lo, taken); 1684ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 1694ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1702ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenSelect(BasicBlock* bb, MIR* mir) { 171f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee RegLocation rl_result; 1721fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src = mir_graph_->GetSrc(mir, 0); 1731fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = mir_graph_->GetDest(mir); 1741fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, kCoreReg); 175a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko ConditionCode ccode = mir->meta.ccode; 176f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee if (mir->ssa_rep->num_uses == 1) { 177f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // CONST case 178f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee int true_val = mir->dalvikInsn.vB; 179f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee int false_val = mir->dalvikInsn.vC; 1801fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, kCoreReg, true); 181a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko // Change kCondNe to kCondEq for the special cases below. 182a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko if (ccode == kCondNe) { 183a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko ccode = kCondEq; 184a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko std::swap(true_val, false_val); 185a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } 186a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko bool cheap_false_val = InexpensiveConstantInt(false_val); 187a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko if (cheap_false_val && ccode == kCondEq && (true_val == 0 || true_val == -1)) { 1882700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpSub, rl_result.reg, rl_src.reg, -true_val); 189a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 190a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko OpIT(true_val == 0 ? kCondNe : kCondUge, ""); 1912700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 192a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko GenBarrier(); // Add a scheduling barrier to keep the IT shadow intact 193a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } else if (cheap_false_val && ccode == kCondEq && true_val == 1) { 1942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpRsub, rl_result.reg, rl_src.reg, 1); 195a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 196a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko OpIT(kCondLs, ""); 1972700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 1987934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom GenBarrier(); // Add a scheduling barrier to keep the IT shadow intact 199a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko } else if (cheap_false_val && InexpensiveConstantInt(true_val)) { 2002700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 201a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko OpIT(ccode, "E"); 2022700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, true_val); 2032700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, false_val); 2047934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom GenBarrier(); // Add a scheduling barrier to keep the IT shadow intact 205f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } else { 206f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // Unlikely case - could be tuned. 2072700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg1 = AllocTemp(); 2082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg2 = AllocTemp(); 2091fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg1, true_val); 2101fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(t_reg2, false_val); 2112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 212a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko OpIT(ccode, "E"); 2132700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, t_reg1); 2142700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, t_reg2); 2157934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom GenBarrier(); // Add a scheduling barrier to keep the IT shadow intact 216f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } 217f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } else { 218f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee // MOVE case 2191fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_true = mir_graph_->reg_location_[mir->ssa_rep->uses[1]]; 2201fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_false = mir_graph_->reg_location_[mir->ssa_rep->uses[2]]; 2211fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_true = LoadValue(rl_true, kCoreReg); 2221fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_false = LoadValue(rl_false, kCoreReg); 2231fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, kCoreReg, true); 2242700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegImm(kOpCmp, rl_src.reg, 0); 22500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (rl_result.reg.GetReg() == rl_true.reg.GetReg()) { // Is the "true" case already in place? 226a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko OpIT(NegateComparison(ccode), ""); 2272700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_false.reg); 22800e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee } else if (rl_result.reg.GetReg() == rl_false.reg.GetReg()) { // False case in place? 229a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko OpIT(ccode, ""); 2302700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_true.reg); 231252254b130067cd7a5071865e793966871ae0246buzbee } else { // Normal - select between the two. 232a1a7074eb8256d101f7b5d256cda26d7de6ce6ceVladimir Marko OpIT(ccode, "E"); 2332700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_true.reg); 2342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg, rl_false.reg); 235252254b130067cd7a5071865e793966871ae0246buzbee } 2367934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom GenBarrier(); // Add a scheduling barrier to keep the IT shadow intact 237f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee } 2381fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 239f662a7c625b1067f61b23c04459eba9b12bc027ebuzbee} 2404ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 2412ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenFusedLongCmpBranch(BasicBlock* bb, MIR* mir) { 2421fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src1 = mir_graph_->GetSrcWide(mir, 0); 2431fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_src2 = mir_graph_->GetSrcWide(mir, 2); 2444ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Normalize such that if either operand is constant, src2 will be constant. 245a894607bca7eb623bc957363e4b36f44cfeea1b6Vladimir Marko ConditionCode ccode = mir->meta.ccode; 2464ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src1.is_const) { 24758af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko std::swap(rl_src1, rl_src2); 2484ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ccode = FlipComparisonOrder(ccode); 2494ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 2504ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src2.is_const) { 2511fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_temp = UpdateLocWide(rl_src2); 2524ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Do special compare/branch against simple const operand if not already in registers. 2531fd3346740dfb7f47be9922312b68a4227fada96buzbee int64_t val = mir_graph_->ConstantValueWide(rl_src2); 2544ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((rl_temp.location != kLocPhysReg) && 2554ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ((ModifiedImmediate(Low32Bits(val)) >= 0) && (ModifiedImmediate(High32Bits(val)) >= 0))) { 2561fd3346740dfb7f47be9922312b68a4227fada96buzbee GenFusedLongCmpImmBranch(bb, rl_src1, val, ccode); 2574ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return; 2584ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 2594ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 2600d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* taken = &block_label_list_[bb->taken]; 2610d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee LIR* not_taken = &block_label_list_[bb->fall_through]; 2621fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 2631fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValueWide(rl_src2, kCoreReg); 2642700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetHigh(), rl_src2.reg.GetHigh()); 265df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (ccode) { 266efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondEq: 2671fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondNe, not_taken); 268efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 269efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondNe: 2701fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondNe, taken); 271efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 272efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondLt: 2731fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, taken); 2741fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, not_taken); 27558af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUlt; 276efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 277efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondLe: 2781fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, taken); 2791fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, not_taken); 280efc6369224b036a1fb77849f7ae65b3492c832c0buzbee ccode = kCondLs; 281efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 282efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondGt: 2831fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, taken); 2841fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, not_taken); 285efc6369224b036a1fb77849f7ae65b3492c832c0buzbee ccode = kCondHi; 286efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 287efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCondGe: 2881fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondGt, taken); 2891fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(kCondLt, not_taken); 29058af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko ccode = kCondUge; 291efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 292efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 293cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Unexpected ccode: " << ccode; 294efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 2952700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg.GetLow(), rl_src2.reg.GetLow()); 2961fd3346740dfb7f47be9922312b68a4227fada96buzbee OpCondBranch(ccode, taken); 297efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 298efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 299efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 300efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Generate a register comparison to an immediate and branch. Caller 301efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * is responsible for setting branch target field. 302efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 3032700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpCmpImmBranch(ConditionCode cond, RegStorage reg, int check_value, LIR* target) { 304efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* branch; 305fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee ArmConditionCode arm_cond = ArmConditionEncoding(cond); 306b48819db07f9a0992a72173380c24249d7fc648abuzbee /* 307b48819db07f9a0992a72173380c24249d7fc648abuzbee * A common use of OpCmpImmBranch is for null checks, and using the Thumb 16-bit 308b48819db07f9a0992a72173380c24249d7fc648abuzbee * compare-and-branch if zero is ideal if it will reach. However, because null checks 309b48819db07f9a0992a72173380c24249d7fc648abuzbee * branch forward to a launch pad, they will frequently not reach - and thus have to 310b48819db07f9a0992a72173380c24249d7fc648abuzbee * be converted to a long form during assembly (which will trigger another assembly 311b48819db07f9a0992a72173380c24249d7fc648abuzbee * pass). Here we estimate the branch distance for checks, and if large directly 312b48819db07f9a0992a72173380c24249d7fc648abuzbee * generate the long form in an attempt to avoid an extra assembly pass. 313b48819db07f9a0992a72173380c24249d7fc648abuzbee * TODO: consider interspersing launchpads in code following unconditional branches. 314b48819db07f9a0992a72173380c24249d7fc648abuzbee */ 315b48819db07f9a0992a72173380c24249d7fc648abuzbee bool skip = ((target != NULL) && (target->opcode == kPseudoThrowTarget)); 316b48819db07f9a0992a72173380c24249d7fc648abuzbee skip &= ((cu_->code_item->insns_size_in_code_units_ - current_dalvik_offset_) > 64); 3172700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (!skip && (ARM_LOWREG(reg.GetReg())) && (check_value == 0) && 318fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee ((arm_cond == kArmCondEq) || (arm_cond == kArmCondNe))) { 3191fd3346740dfb7f47be9922312b68a4227fada96buzbee branch = NewLIR2((arm_cond == kArmCondEq) ? kThumb2Cbz : kThumb2Cbnz, 3202700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg.GetReg(), 0); 321efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 3222247984899247b1402408d39731ff64048f0e274Vladimir Marko OpRegImm(kOpCmp, reg, check_value); 3231fd3346740dfb7f47be9922312b68a4227fada96buzbee branch = NewLIR2(kThumbBCond, 0, arm_cond); 324efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 325efc6369224b036a1fb77849f7ae65b3492c832c0buzbee branch->target = target; 326efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return branch; 327efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 32802031b185b4653e6c72e21f7a51238b903f6d638buzbee 3292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpRegCopyNoInsert(RegStorage r_dest, RegStorage r_src) { 330efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LIR* res; 331efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int opcode; 3322700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee // If src or dest is a pair, we'll be using low reg. 3332700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (r_dest.IsPair()) { 3342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_dest = r_dest.GetLow(); 3352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee } 3362700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (r_src.IsPair()) { 3372700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_src = r_src.GetLow(); 3382700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee } 3392700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (ARM_FPREG(r_dest.GetReg()) || ARM_FPREG(r_src.GetReg())) 3401fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpFpRegCopy(r_dest, r_src); 3412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (ARM_LOWREG(r_dest.GetReg()) && ARM_LOWREG(r_src.GetReg())) 342efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR; 3432700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee else if (!ARM_LOWREG(r_dest.GetReg()) && !ARM_LOWREG(r_src.GetReg())) 344efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_H2H; 3452700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee else if (ARM_LOWREG(r_dest.GetReg())) 346efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_H2L; 347efc6369224b036a1fb77849f7ae65b3492c832c0buzbee else 348efc6369224b036a1fb77849f7ae65b3492c832c0buzbee opcode = kThumbMovRR_L2H; 3492700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res = RawLIR(current_dalvik_offset_, opcode, r_dest.GetReg(), r_src.GetReg()); 3501fd3346740dfb7f47be9922312b68a4227fada96buzbee if (!(cu_->disable_opt & (1 << kSafeOptimizations)) && r_dest == r_src) { 351fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee res->flags.is_nop = true; 352efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 353efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return res; 354efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 355efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 3562700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpRegCopy(RegStorage r_dest, RegStorage r_src) { 3571fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* res = OpRegCopyNoInsert(r_dest, r_src); 3581fd3346740dfb7f47be9922312b68a4227fada96buzbee AppendLIR(res); 359efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return res; 360efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 361efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 3622700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeevoid ArmMir2Lir::OpRegCopyWide(RegStorage r_dest, RegStorage r_src) { 3632700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool dest_fp = ARM_FPREG(r_dest.GetLowReg()); 3642700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool src_fp = ARM_FPREG(r_src.GetLowReg()); 365fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (dest_fp) { 366fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (src_fp) { 3672700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee // FIXME: handle 64-bit solo's here. 3682700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(RegStorage::Solo64(S2d(r_dest.GetLowReg(), r_dest.GetHighReg())), 3692700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage::Solo64(S2d(r_src.GetLowReg(), r_src.GetHighReg()))); 370efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 3712700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Fmdrr, S2d(r_dest.GetLowReg(), r_dest.GetHighReg()), 3722700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_src.GetLowReg(), r_src.GetHighReg()); 373efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 374efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 375fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (src_fp) { 3762700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Fmrrd, r_dest.GetLowReg(), r_dest.GetHighReg(), S2d(r_src.GetLowReg(), 3772700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee r_src.GetHighReg())); 378efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 379efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Handle overlap 3802700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (r_src.GetHighReg() == r_dest.GetLowReg()) { 3812700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK_NE(r_src.GetLowReg(), r_dest.GetHighReg()); 3822700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(r_dest.GetHigh(), r_src.GetHigh()); 3832700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(r_dest.GetLow(), r_src.GetLow()); 384efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 3852700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(r_dest.GetLow(), r_src.GetLow()); 3862700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(r_dest.GetHigh(), r_src.GetHigh()); 387efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 388efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 389efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 390efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 391efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 392efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Table of magic divisors 393efc6369224b036a1fb77849f7ae65b3492c832c0buzbeestruct MagicTable { 394efc6369224b036a1fb77849f7ae65b3492c832c0buzbee uint32_t magic; 395efc6369224b036a1fb77849f7ae65b3492c832c0buzbee uint32_t shift; 396efc6369224b036a1fb77849f7ae65b3492c832c0buzbee DividePattern pattern; 397efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 398efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 399fa57c47f1b72916371a9c2d5c1389219bce655b4buzbeestatic const MagicTable magic_table[] = { 400efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 0 401efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 1 402efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 2 403efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x55555556, 0, Divide3}, // 3 404efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 4 405efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x66666667, 1, Divide5}, // 5 406efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2AAAAAAB, 0, Divide3}, // 6 407efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x92492493, 2, Divide7}, // 7 408efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0, 0, DivideNone}, // 8 409efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x38E38E39, 1, Divide5}, // 9 410efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x66666667, 2, Divide5}, // 10 411efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2E8BA2E9, 1, Divide5}, // 11 412efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x2AAAAAAB, 1, Divide5}, // 12 413efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x4EC4EC4F, 2, Divide5}, // 13 414efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x92492493, 3, Divide7}, // 14 415efc6369224b036a1fb77849f7ae65b3492c832c0buzbee {0x88888889, 3, Divide7}, // 15 416efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 417efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 418efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Integer division by constant via reciprocal multiply (Hacker's Delight, 10-4) 41911b63d13f0a3be0f74390b66b58614a37f9aa6c1buzbeebool ArmMir2Lir::SmallLiteralDivRem(Instruction::Code dalvik_opcode, bool is_div, 4202ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src, RegLocation rl_dest, int lit) { 421fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if ((lit < 0) || (lit >= static_cast<int>(sizeof(magic_table)/sizeof(magic_table[0])))) { 422efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return false; 423efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 424fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee DividePattern pattern = magic_table[lit].pattern; 425efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (pattern == DivideNone) { 426efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return false; 427efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 428efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Tuning: add rem patterns 42911b63d13f0a3be0f74390b66b58614a37f9aa6c1buzbee if (!is_div) { 430efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return false; 431efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 432efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4332700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_magic = AllocTemp(); 4341fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstant(r_magic, magic_table[lit].magic); 4351fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, kCoreReg); 4361fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 4372700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_hi = AllocTemp(); 4382700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_lo = AllocTemp(); 4392700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Smull, r_lo.GetReg(), r_hi.GetReg(), r_magic.GetReg(), rl_src.reg.GetReg()); 440df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (pattern) { 441efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide3: 4422700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegRegShift(kOpSub, rl_result.reg.GetReg(), r_hi.GetReg(), 44300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee rl_src.reg.GetReg(), EncodeShift(kArmAsr, 31)); 444efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 445efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide5: 4462700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, r_lo, rl_src.reg, 31); 4472700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegRegShift(kOpRsub, rl_result.reg.GetReg(), r_lo.GetReg(), r_hi.GetReg(), 448fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee EncodeShift(kArmAsr, magic_table[lit].shift)); 449efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 450efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case Divide7: 4512700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpAdd, r_hi, rl_src.reg); 4522700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, r_lo, rl_src.reg, 31); 4532700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegRegShift(kOpRsub, rl_result.reg.GetReg(), r_lo.GetReg(), r_hi.GetReg(), 454fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee EncodeShift(kArmAsr, magic_table[lit].shift)); 455efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 456efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 457cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(FATAL) << "Unexpected pattern: " << pattern; 458efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 4591fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 460efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 461efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 462efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4632700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::GenRegMemCheck(ConditionCode c_code, RegStorage reg1, RegStorage base, 4642700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee int offset, ThrowKind kind) { 46552a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of GenRegMemCheck for Arm"; 466efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return NULL; 467efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 468efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4692bf31e67694da24a19fc1f328285cebb1a4b9964Mark MendellRegLocation ArmMir2Lir::GenDivRem(RegLocation rl_dest, RegLocation rl_src1, 4702bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell RegLocation rl_src2, bool is_div, bool check_zero) { 4712bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell LOG(FATAL) << "Unexpected use of GenDivRem for Arm"; 4722bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell return rl_dest; 4732bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell} 4742bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell 4752bf31e67694da24a19fc1f328285cebb1a4b9964Mark MendellRegLocation ArmMir2Lir::GenDivRemLit(RegLocation rl_dest, RegLocation rl_src1, int lit, bool is_div) { 4762bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell LOG(FATAL) << "Unexpected use of GenDivRemLit for Arm"; 4772bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell return rl_dest; 4782bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell} 4792bf31e67694da24a19fc1f328285cebb1a4b9964Mark Mendell 4802700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeRegLocation ArmMir2Lir::GenDivRemLit(RegLocation rl_dest, RegStorage reg1, int lit, bool is_div) { 4817020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 4827020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 4837020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Put the literal in a temp. 4842700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage lit_temp = AllocTemp(); 4857020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison LoadConstant(lit_temp, lit); 4867020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Use the generic case for div/rem with arg2 in a register. 4877020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // TODO: The literal temp can be freed earlier during a modulus to reduce reg pressure. 4887020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison rl_result = GenDivRem(rl_result, reg1, lit_temp, is_div); 4897020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison FreeTemp(lit_temp); 4907020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 4917020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison return rl_result; 492efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 493efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeRegLocation ArmMir2Lir::GenDivRem(RegLocation rl_dest, RegStorage reg1, RegStorage reg2, 4952ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom bool is_div) { 4967020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 4977020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison if (is_div) { 4987020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Simple case, use sdiv instruction. 4992700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpDiv, rl_result.reg, reg1, reg2); 5007020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison } else { 5017020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // Remainder case, use the following code: 5027020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // temp = reg1 / reg2 - integer division 5037020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // temp = temp * reg2 5047020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison // dest = reg1 - temp 5057020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 5062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage temp = AllocTemp(); 5077020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison OpRegRegReg(kOpDiv, temp, reg1, reg2); 5087020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison OpRegReg(kOpMul, temp, reg2); 5092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg, reg1, temp); 5107020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison FreeTemp(temp); 5117020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison } 5127020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison 5137020278bce98a0735dc6abcbd33bdf1ed2634f1dDave Allison return rl_result; 514efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 515efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 5162ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrombool ArmMir2Lir::GenInlinedMinMaxInt(CallInfo* info, bool is_min) { 5171fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK_EQ(cu_->instruction_set, kThumb2); 518fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee RegLocation rl_src1 = info->args[0]; 519fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee RegLocation rl_src2 = info->args[1]; 5201fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValue(rl_src1, kCoreReg); 5211fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src2 = LoadValue(rl_src2, kCoreReg); 5221fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = InlineTarget(info); 5231fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 5242700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpCmp, rl_src1.reg, rl_src2.reg); 5251fd3346740dfb7f47be9922312b68a4227fada96buzbee OpIT((is_min) ? kCondGt : kCondLt, "E"); 5262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpMov, rl_result.reg, rl_src2.reg); 5272700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpMov, rl_result.reg, rl_src1.reg); 5281fd3346740dfb7f47be9922312b68a4227fada96buzbee GenBarrier(); 5291fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 530efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 531efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 532efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 533e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Markobool ArmMir2Lir::GenInlinedPeek(CallInfo* info, OpSize size) { 534e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_address = info->args[0]; // long address 5352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_address = NarrowRegLoc(rl_src_address); // ignore high half in info->args[1] 536e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_dest = InlineTarget(info); 537e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_address = LoadValue(rl_src_address, kCoreReg); 538e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 539e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko if (size == kLong) { 540e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Fake unaligned LDRD by two unaligned LDR instructions on ARMv7 with SCTLR.A set to 0. 5412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (rl_address.reg.GetReg() != rl_result.reg.GetLowReg()) { 5422700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_address.reg, 0, rl_result.reg.GetLow()); 5432700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_address.reg, 4, rl_result.reg.GetHigh()); 544e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 5452700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_address.reg, 4, rl_result.reg.GetHigh()); 5462700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_address.reg, 0, rl_result.reg.GetLow()); 547e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 548e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko StoreValueWide(rl_dest, rl_result); 549e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 550e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko DCHECK(size == kSignedByte || size == kSignedHalf || size == kWord); 551e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Unaligned load with LDR and LDRSH is allowed on ARMv7 with SCTLR.A set to 0. 5522700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadBaseDisp(rl_address.reg, 0, rl_result.reg, size, INVALID_SREG); 553e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko StoreValue(rl_dest, rl_result); 554e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 555e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko return true; 556e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko} 557e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko 558e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Markobool ArmMir2Lir::GenInlinedPoke(CallInfo* info, OpSize size) { 559e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_address = info->args[0]; // long address 5602700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_address = NarrowRegLoc(rl_src_address); // ignore high half in info->args[1] 561e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_src_value = info->args[2]; // [size] value 562e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_address = LoadValue(rl_src_address, kCoreReg); 563e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko if (size == kLong) { 564e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Fake unaligned STRD by two unaligned STR instructions on ARMv7 with SCTLR.A set to 0. 565e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_value = LoadValueWide(rl_src_value, kCoreReg); 5662700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseDisp(rl_address.reg, 0, rl_value.reg.GetLow(), kWord); 5672700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseDisp(rl_address.reg, 4, rl_value.reg.GetHigh(), kWord); 568e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } else { 569e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko DCHECK(size == kSignedByte || size == kSignedHalf || size == kWord); 570e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko // Unaligned store with STR and STRSH is allowed on ARMv7 with SCTLR.A set to 0. 571e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko RegLocation rl_value = LoadValue(rl_src_value, kCoreReg); 5722700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseDisp(rl_address.reg, 0, rl_value.reg, size); 573e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko } 574e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko return true; 575e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko} 576e508a2090b19fe705fbc6b99d76474037a74bbfbVladimir Marko 5772700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeevoid ArmMir2Lir::OpLea(RegStorage r_base, RegStorage reg1, RegStorage reg2, int scale, int offset) { 57852a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of OpLea for Arm"; 579efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 580efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 581468532ea115657709bc32ee498e701a4c71762d4Ian Rogersvoid ArmMir2Lir::OpTlsCmp(ThreadOffset offset, int val) { 58252a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of OpTlsCmp for Arm"; 583efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 584efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 5851c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Markobool ArmMir2Lir::GenInlinedCas(CallInfo* info, bool is_long, bool is_object) { 5861fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK_EQ(cu_->instruction_set, kThumb2); 587fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee // Unused - RegLocation rl_src_unsafe = info->args[0]; 5881c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_obj = info->args[1]; // Object - known non-null 5891c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_offset = info->args[2]; // long low 5902700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src_offset = NarrowRegLoc(rl_src_offset); // ignore high half in info->args[3] 5911c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko RegLocation rl_src_expected = info->args[4]; // int, long or Object 5923e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // If is_long, high half is in info->args[5] 5933e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_src_new_value = info->args[is_long ? 6 : 5]; // int, long or Object 5943e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // If is_long, high half is in info->args[7] 5951fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_dest = InlineTarget(info); // boolean place for result 596efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 5973e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // We have only 5 temporary registers available and actually only 4 if the InlineTarget 5983e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // above locked one of the temps. For a straightforward CAS64 we need 7 registers: 5993e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // r_ptr (1), new_value (2), expected(2) and ldrexd result (2). If neither expected nor 6003e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // new_value is in a non-temp core register we shall reload them in the ldrex/strex loop 6013e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // into the same temps, reducing the number of required temps down to 5. We shall work 6023e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // around the potentially locked temp by using LR for r_ptr, unconditionally. 6033e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // TODO: Pass information about the need for more temps to the stack frame generation 6043e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // code so that we can rely on being able to allocate enough temps. 6053e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko DCHECK(!reg_pool_->core_regs[rARM_LR].is_temp); 6063e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko MarkTemp(rARM_LR); 6073e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko FreeTemp(rARM_LR); 6083e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko LockTemp(rARM_LR); 6093e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko bool load_early = true; 6103e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (is_long) { 6112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee int expected_reg = is_long ? rl_src_expected.reg.GetLowReg() : rl_src_expected.reg.GetReg(); 6122700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee int new_val_reg = is_long ? rl_src_new_value.reg.GetLowReg() : rl_src_new_value.reg.GetReg(); 6132700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool expected_is_core_reg = rl_src_expected.location == kLocPhysReg && !IsFpReg(expected_reg); 6142700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool new_value_is_core_reg = rl_src_new_value.location == kLocPhysReg && !IsFpReg(new_val_reg); 6152700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool expected_is_good_reg = expected_is_core_reg && !IsTemp(expected_reg); 6162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool new_value_is_good_reg = new_value_is_core_reg && !IsTemp(new_val_reg); 6173e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 6183e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!expected_is_good_reg && !new_value_is_good_reg) { 6193e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // None of expected/new_value is non-temp reg, need to load both late 6203e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko load_early = false; 6213e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Make sure they are not in the temp regs and the load will not be skipped. 6223e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (expected_is_core_reg) { 6232700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FlushRegWide(rl_src_expected.reg); 6243e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(rl_src_expected.s_reg_low); 6253e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(GetSRegHi(rl_src_expected.s_reg_low)); 6263e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_src_expected.location = kLocDalvikFrame; 6273e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 6283e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (new_value_is_core_reg) { 6292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FlushRegWide(rl_src_new_value.reg); 6303e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(rl_src_new_value.s_reg_low); 6313e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko ClobberSReg(GetSRegHi(rl_src_new_value.s_reg_low)); 6323e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_src_new_value.location = kLocDalvikFrame; 6333e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 6343e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 6353e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 636efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 6371bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee // Release store semantics, get the barrier out of the way. TODO: revisit 6381fd3346740dfb7f47be9922312b68a4227fada96buzbee GenMemBarrier(kStoreLoad); 639efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 6401fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_object = LoadValue(rl_src_obj, kCoreReg); 6413e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_new_value; 6423e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!is_long) { 6433e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_new_value = LoadValue(rl_src_new_value, kCoreReg); 6443e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else if (load_early) { 6453e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_new_value = LoadValueWide(rl_src_new_value, kCoreReg); 6463e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 647efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 6481c282e2b9a9b432e132b2c332f861cad9feb4a73Vladimir Marko if (is_object && !mir_graph_->IsConstantNullRef(rl_new_value)) { 649efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Mark card for object assuming new value is stored. 6502700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee MarkGCCard(rl_new_value.reg, rl_object.reg); 651efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 652efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 6531fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_offset = LoadValue(rl_src_offset, kCoreReg); 654efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 6552700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_ptr = rs_rARM_LR; 6562700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdd, r_ptr, rl_object.reg, rl_offset.reg); 657efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 658fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee // Free now unneeded rl_object and rl_offset to give more temps. 6591fd3346740dfb7f47be9922312b68a4227fada96buzbee ClobberSReg(rl_object.s_reg_low); 66000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_object.reg.GetReg()); 6611fd3346740dfb7f47be9922312b68a4227fada96buzbee ClobberSReg(rl_offset.s_reg_low); 66200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_offset.reg.GetReg()); 663efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 6643e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_expected; 6653e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!is_long) { 6663e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_expected = LoadValue(rl_src_expected, kCoreReg); 6673e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else if (load_early) { 6683e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko rl_expected = LoadValueWide(rl_src_expected, kCoreReg); 6693e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 67000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee // NOTE: partially defined rl_expected & rl_new_value - but we just want the regs. 6712700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee int low_reg = AllocTemp().GetReg(); 6722700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee int high_reg = AllocTemp().GetReg(); 67300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee rl_new_value.reg = RegStorage(RegStorage::k64BitPair, low_reg, high_reg); 67400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee rl_expected = rl_new_value; 6753e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 6763e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 6773e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // do { 6783e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // tmp = [r_ptr] - expected; 6793e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // } while (tmp == 0 && failure([r_ptr] <- r_new_value)); 6803e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // result = tmp != 0; 681efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 6822700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_tmp = AllocTemp(); 6832de2aa1a96dfa5bebc004f29b5dbfafd37039ceeJeff Hao LIR* target = NewLIR0(kPseudoTargetLabel); 6843e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 6853e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (is_long) { 6862700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage r_tmp_high = AllocTemp(); 6873e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 6882700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadValueDirectWide(rl_src_expected, rl_expected.reg); 6893e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 6902700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Ldrexd, r_tmp.GetReg(), r_tmp_high.GetReg(), r_ptr.GetReg()); 6912700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp, rl_expected.reg.GetLow()); 6922700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp_high, rl_expected.reg.GetHigh()); 6933e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 6942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadValueDirectWide(rl_src_new_value, rl_new_value.reg); 6953e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 6963e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Make sure we use ORR that sets the ccode 6972700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (ARM_LOWREG(r_tmp.GetReg()) && ARM_LOWREG(r_tmp_high.GetReg())) { 6982700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR2(kThumbOrr, r_tmp.GetReg(), r_tmp_high.GetReg()); 6993e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 7002700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, r_tmp.GetReg(), r_tmp.GetReg(), r_tmp_high.GetReg(), 0); 7013e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 7023e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko FreeTemp(r_tmp_high); // Now unneeded 7033e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 7043e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 7053e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko OpIT(kCondEq, "T"); 7062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Strexd /* eq */, r_tmp.GetReg(), rl_new_value.reg.GetLowReg(), rl_new_value.reg.GetHighReg(), r_ptr.GetReg()); 7073e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 7083e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } else { 7092700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2Ldrex, r_tmp.GetReg(), r_ptr.GetReg(), 0); 7102700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegReg(kOpSub, r_tmp, rl_expected.reg); 7113e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 7123e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko OpIT(kCondEq, "T"); 7132700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Strex /* eq */, r_tmp.GetReg(), rl_new_value.reg.GetReg(), r_ptr.GetReg(), 0); 7143e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 7153e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 7163e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Still one conditional left from OpIT(kCondEq, "T") from either branch 7173e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko OpRegImm(kOpCmp /* eq */, r_tmp, 1); 7182de2aa1a96dfa5bebc004f29b5dbfafd37039ceeJeff Hao OpCondBranch(kCondEq, target); 719efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7203e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko if (!load_early) { 7212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FreeTemp(rl_expected.reg); // Now unneeded. 7223e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko } 7233e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 7243e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // result := (tmp1 != 0) ? 0 : 1; 7253e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 7262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpRsub, rl_result.reg, r_tmp, 1); 7273e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 72858af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko OpIT(kCondUlt, ""); 7292700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg, 0); /* cc */ 7303e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko FreeTemp(r_tmp); // Now unneeded. 7313e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko 7321fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 733efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7343e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko // Now, restore lr to its non-temp status. 7353e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko Clobber(rARM_LR); 7363e5af82ae1a2cd69b7b045ac008ac3b394d17f41Vladimir Marko UnmarkTemp(rARM_LR); 737efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return true; 738efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 739efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7402700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpPcRelLoad(RegStorage reg, LIR* target) { 7412700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return RawLIR(current_dalvik_offset_, kThumb2LdrPcRel12, reg.GetReg(), 0, 0, 0, 0, target); 742efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 743efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7442700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpVldm(RegStorage r_base, int count) { 7452700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumb2Vldms, r_base.GetReg(), fr0, count); 746efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 747efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7482700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpVstm(RegStorage r_base, int count) { 7492700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee return NewLIR3(kThumb2Vstms, r_base.GetReg(), fr0, count); 750efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 751efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7521fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenMultiplyByTwoBitMultiplier(RegLocation rl_src, 75302031b185b4653e6c72e21f7a51238b903f6d638buzbee RegLocation rl_result, int lit, 7542ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom int first_bit, int second_bit) { 75500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee OpRegRegRegShift(kOpAdd, rl_result.reg.GetReg(), rl_src.reg.GetReg(), rl_src.reg.GetReg(), 756fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee EncodeShift(kArmLsl, second_bit - first_bit)); 757fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (first_bit != 0) { 7582700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg, rl_result.reg, first_bit); 759efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 760efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 761efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7622700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeevoid ArmMir2Lir::GenDivZeroCheck(RegStorage reg) { 7632700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(reg.IsPair()); // TODO: support k64BitSolo. 7642700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 7652700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2OrrRRRs, t_reg.GetReg(), reg.GetLowReg(), reg.GetHighReg(), 0); 7661fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 7671fd3346740dfb7f47be9922312b68a4227fada96buzbee GenCheck(kCondEq, kThrowDivZero); 768efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 769efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 770efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Test suspend flag, return target of taken suspend branch 7712ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* ArmMir2Lir::OpTestSuspend(LIR* target) { 7721fd3346740dfb7f47be9922312b68a4227fada96buzbee NewLIR2(kThumbSubRI8, rARM_SUSPEND, 1); 7731fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpCondBranch((target == NULL) ? kCondEq : kCondNe, target); 774efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 775efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 776efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Decrement register and branch on condition 7772700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbeeLIR* ArmMir2Lir::OpDecAndBranch(ConditionCode c_code, RegStorage reg, LIR* target) { 778efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Combine sub & test using sub setflags encoding here 779dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko OpRegRegImm(kOpSub, reg, reg, 1); // For value == 1, this should set flags. 780dbb8c49d540edd2a39076093163c7218f03aa502Vladimir Marko DCHECK(last_lir_insn_->u.m.def_mask & ENCODE_CCODE); 7811fd3346740dfb7f47be9922312b68a4227fada96buzbee return OpCondBranch(c_code, target); 782efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 783efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 7842ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenMemBarrier(MemBarrierKind barrier_kind) { 785efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#if ANDROID_SMP != 0 78699ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // Start off with using the last LIR as the barrier. If it is not enough, then we will generate one. 78799ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru LIR* barrier = last_lir_insn_; 78899ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 789fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int dmb_flavor; 7901bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee // TODO: revisit Arm barrier kinds 791fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee switch (barrier_kind) { 792b122a4bbed34ab22b4c1541ee25e5cf22f12a926Ian Rogers case kLoadStore: dmb_flavor = kISH; break; 793b122a4bbed34ab22b4c1541ee25e5cf22f12a926Ian Rogers case kLoadLoad: dmb_flavor = kISH; break; 794b122a4bbed34ab22b4c1541ee25e5cf22f12a926Ian Rogers case kStoreStore: dmb_flavor = kISHST; break; 795b122a4bbed34ab22b4c1541ee25e5cf22f12a926Ian Rogers case kStoreLoad: dmb_flavor = kISH; break; 7961bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee default: 797fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(FATAL) << "Unexpected MemBarrierKind: " << barrier_kind; 798fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee dmb_flavor = kSY; // quiet gcc. 7991bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee break; 8001bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee } 80199ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 80299ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // If the same barrier already exists, don't generate another. 80399ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru if (barrier == nullptr 80499ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru || (barrier != nullptr && (barrier->opcode != kThumb2Dmb || barrier->operands[0] != dmb_flavor))) { 80599ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru barrier = NewLIR1(kThumb2Dmb, dmb_flavor); 80699ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru } 80799ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru 80899ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru // At this point we must have a memory barrier. Mark it as a scheduling barrier as well. 80999ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru DCHECK(!barrier->flags.use_def_invalid); 81099ad7230ccaace93bf323dea9790f35fe991a4a2Razvan A Lupusoru barrier->u.m.def_mask = ENCODE_ALL; 811efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#endif 812efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 813efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 8142ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid ArmMir2Lir::GenNegLong(RegLocation rl_dest, RegLocation rl_src) { 8151fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, kCoreReg); 8161fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 8172700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage z_reg = AllocTemp(); 8181fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadConstantNoClobber(z_reg, 0); 819efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Check for destructive overlap 8202700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (rl_result.reg.GetLowReg() == rl_src.reg.GetHighReg()) { 8212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 8222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg.GetLow(), z_reg, rl_src.reg.GetLow()); 8232700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSbc, rl_result.reg.GetHigh(), z_reg, t_reg); 8241fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 825efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 8262700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSub, rl_result.reg.GetLow(), z_reg, rl_src.reg.GetLow()); 8272700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpSbc, rl_result.reg.GetHigh(), z_reg, rl_src.reg.GetHigh()); 828efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 8291fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(z_reg); 8301fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 831efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 832efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 833e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenMulLong(Instruction::Code opcode, RegLocation rl_dest, 834e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell RegLocation rl_src1, RegLocation rl_src2) { 8354ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee /* 836d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * tmp1 = src1.hi * src2.lo; // src1.hi is no longer needed 837d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * dest = src1.lo * src2.lo; 838d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * tmp1 += src1.lo * src2.hi; 839d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * dest.hi += tmp1; 840d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * 841d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu * To pull off inline multiply, we have a worst-case requirement of 7 temporary 8424ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * registers. Normally for Arm, we get 5. We can get to 6 by including 8434ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * lr in the temp set. The only problematic case is all operands and result are 8444ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * distinct, and none have been promoted. In that case, we can succeed by aggressively 8454ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * freeing operand temp registers after they are no longer needed. All other cases 8464ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * can proceed normally. We'll just punt on the case of the result having a misaligned 8474ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee * overlap with either operand and send that case to a runtime handler. 8484ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee */ 8494ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee RegLocation rl_result; 8501fd3346740dfb7f47be9922312b68a4227fada96buzbee if (BadOverlap(rl_src1, rl_dest) || (BadOverlap(rl_src2, rl_dest))) { 851468532ea115657709bc32ee498e701a4c71762d4Ian Rogers ThreadOffset func_offset = QUICK_ENTRYPOINT_OFFSET(pLmul); 8521fd3346740dfb7f47be9922312b68a4227fada96buzbee FlushAllRegs(); 8531fd3346740dfb7f47be9922312b68a4227fada96buzbee CallRuntimeHelperRegLocationRegLocation(func_offset, rl_src1, rl_src2, false); 8541fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = GetReturnWide(false); 8551fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 8564ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return; 8574ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 858d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 859d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu rl_src1 = LoadValueWide(rl_src1, kCoreReg); 860d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu rl_src2 = LoadValueWide(rl_src2, kCoreReg); 861d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 862d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu int reg_status = 0; 8632700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage res_lo; 8642700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage res_hi; 8652700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool dest_promoted = rl_dest.location == kLocPhysReg && rl_dest.reg.Valid() && 8662700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee !IsTemp(rl_dest.reg.GetLowReg()) && !IsTemp(rl_dest.reg.GetHighReg()); 8672700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool src1_promoted = !IsTemp(rl_src1.reg.GetLowReg()) && !IsTemp(rl_src1.reg.GetHighReg()); 8682700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee bool src2_promoted = !IsTemp(rl_src2.reg.GetLowReg()) && !IsTemp(rl_src2.reg.GetHighReg()); 869d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // Check if rl_dest is *not* either operand and we have enough temp registers. 870d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if ((rl_dest.s_reg_low != rl_src1.s_reg_low && rl_dest.s_reg_low != rl_src2.s_reg_low) && 871d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu (dest_promoted || src1_promoted || src2_promoted)) { 872d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // In this case, we do not need to manually allocate temp registers for result. 873d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu rl_result = EvalLoc(rl_dest, kCoreReg, true); 8742700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res_lo = rl_result.reg.GetLow(); 8752700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee res_hi = rl_result.reg.GetHigh(); 876d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } else { 877d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu res_lo = AllocTemp(); 878d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if ((rl_src1.s_reg_low == rl_src2.s_reg_low) || src1_promoted || src2_promoted) { 879d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // In this case, we have enough temp registers to be allocated for result. 880d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu res_hi = AllocTemp(); 881d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu reg_status = 1; 882d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } else { 883d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // In this case, all temps are now allocated. 884d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // res_hi will be allocated after we can free src1_hi. 885d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu reg_status = 2; 886d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } 887d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } 888d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 8894ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Temporarily add LR to the temp pool, and assign it to tmp1 8901fd3346740dfb7f47be9922312b68a4227fada96buzbee MarkTemp(rARM_LR); 8911fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(rARM_LR); 8922700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage tmp1 = rs_rARM_LR; 8931fd3346740dfb7f47be9922312b68a4227fada96buzbee LockTemp(rARM_LR); 8944ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 8952700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if (rl_src1.reg == rl_src2.reg) { 8962700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_hi.Valid()); 8972700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_lo.Valid()); 8982700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2MulRRR, tmp1.GetReg(), rl_src1.reg.GetLowReg(), rl_src1.reg.GetHighReg()); 8992700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Umull, res_lo.GetReg(), res_hi.GetReg(), rl_src1.reg.GetLowReg(), 9002700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src1.reg.GetLowReg()); 9012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegRegShift(kOpAdd, res_hi.GetReg(), res_hi.GetReg(), tmp1.GetReg(), 9022700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee EncodeShift(kArmLsl, 1)); 9034ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 9042700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2MulRRR, tmp1.GetReg(), rl_src2.reg.GetLowReg(), rl_src1.reg.GetHighReg()); 905d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if (reg_status == 2) { 9062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(!res_hi.Valid()); 9072700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK_NE(rl_src1.reg.GetLowReg(), rl_src2.reg.GetLowReg()); 90800e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee DCHECK_NE(rl_src1.reg.GetHighReg(), rl_src2.reg.GetHighReg()); 90900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_src1.reg.GetHighReg()); 910d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu res_hi = AllocTemp(); 9114ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 9122700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_hi.Valid()); 9132700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee DCHECK(res_lo.Valid()); 9142700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Umull, res_lo.GetReg(), res_hi.GetReg(), rl_src2.reg.GetLowReg(), 9152700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_src1.reg.GetLowReg()); 9162700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2Mla, tmp1.GetReg(), rl_src1.reg.GetLowReg(), rl_src2.reg.GetHighReg(), 9172700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee tmp1.GetReg()); 9182700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR4(kThumb2AddRRR, res_hi.GetReg(), tmp1.GetReg(), res_hi.GetReg(), 0); 919d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if (reg_status == 2) { 920d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // Clobber rl_src1 since it was corrupted. 9212700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee FreeTemp(rl_src1.reg); 9222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee Clobber(rl_src1.reg); 9234ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 9244ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 925d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 9264ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Now, restore lr to its non-temp status. 927d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu FreeTemp(tmp1); 9281fd3346740dfb7f47be9922312b68a4227fada96buzbee Clobber(rARM_LR); 9291fd3346740dfb7f47be9922312b68a4227fada96buzbee UnmarkTemp(rARM_LR); 930d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 931d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu if (reg_status != 0) { 932d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // We had manually allocated registers for rl_result. 933d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu // Now construct a RegLocation. 934d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu rl_result = GetReturnWide(false); // Just using as a template. 9352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee rl_result.reg = RegStorage::MakeRegPair(res_lo, res_hi); 936d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu } 937d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu 938d7f8e02041e9d16160bc81bd1fa19189bffc04b3Zheng Xu StoreValueWide(rl_dest, rl_result); 9394ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 9404ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 941e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenAddLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 9422ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 94352a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of GenAddLong for Arm"; 944efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 945efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 946e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenSubLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 9472ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 94852a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of GenSubLong for Arm"; 949efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 950efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 951e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenAndLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 9522ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 95352a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of GenAndLong for Arm"; 954efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 955efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 956e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenOrLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 9572ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 95852a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of GenOrLong for Arm"; 959efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 960efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 961e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid ArmMir2Lir::GenXorLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 9622ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_src2) { 963efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LOG(FATAL) << "Unexpected use of genXoLong for Arm"; 964efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 965efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 966e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee/* 967e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * Generate array load 968e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee */ 9691fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArrayGet(int opt_flags, OpSize size, RegLocation rl_array, 970a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers RegLocation rl_index, RegLocation rl_dest, int scale) { 971e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee RegisterClass reg_class = oat_reg_class_by_size(size); 9722dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers int len_offset = mirror::Array::LengthOffset().Int32Value(); 973e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee int data_offset; 974e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee RegLocation rl_result; 9754ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee bool constant_index = rl_index.is_const; 9761fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_array = LoadValue(rl_array, kCoreReg); 9774ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 9781fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_index = LoadValue(rl_index, kCoreReg); 9794ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 980e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 981e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_dest.wide) { 9822dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int64_t)).Int32Value(); 983e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 9842dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int32_t)).Int32Value(); 985e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 986e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 9874ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // If index is constant, just fold it into the data offset 9884ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 9891fd3346740dfb7f47be9922312b68a4227fada96buzbee data_offset += mir_graph_->ConstantValue(rl_index) << scale; 9904ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 9914ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 992e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* null object? */ 9932700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenNullCheck(rl_array.reg, opt_flags); 994e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 995e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee bool needs_range_check = (!(opt_flags & MIR_IGNORE_RANGE_CHECK)); 9962700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_len; 997e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 9981fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_len = AllocTemp(); 999e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* Get len */ 10002700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_array.reg, len_offset, reg_len); 1001b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1002b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison } else { 10032700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee ForceImplicitNullCheck(rl_array.reg, opt_flags); 1004e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 10054ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_dest.wide || rl_dest.fp || constant_index) { 10062700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr; 10074ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 10082700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; // NOTE: must not alter reg_ptr in constant case. 10094ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 10104ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // No special indexed operation, lea + load w/ displacement 10111fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_ptr = AllocTemp(); 10122700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegRegShift(kOpAdd, reg_ptr.GetReg(), rl_array.reg.GetReg(), rl_index.reg.GetReg(), 10134ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsl, scale)); 101400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_index.reg.GetReg()); 10154ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 10161fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, reg_class, true); 1017e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1018e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 10194ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 10201fd3346740dfb7f47be9922312b68a4227fada96buzbee GenImmedCheck(kCondLs, reg_len, mir_graph_->ConstantValue(rl_index), kThrowConstantArrayBounds); 10214ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 10222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenRegRegCheck(kCondLs, reg_len, rl_index.reg, kThrowArrayBounds); 10234ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 10241fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1025e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1026e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_dest.wide) { 10272700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadBaseDispWide(reg_ptr, data_offset, rl_result.reg, INVALID_SREG); 1028b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 10294ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 10301fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 10314ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 10321fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 1033e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 10342700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadBaseDisp(reg_ptr, data_offset, rl_result.reg, size, INVALID_SREG); 1035b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 10364ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 10371fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 10384ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 10391fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 1040e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1041e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1042e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee // Offset base, then use indexed load 10432700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr = AllocTemp(); 10442700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAdd, reg_ptr, rl_array.reg, data_offset); 104500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_array.reg.GetReg()); 10461fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_result = EvalLoc(rl_dest, reg_class, true); 1047e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1048e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 10492700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenRegRegCheck(kCondUge, rl_index.reg, reg_len, kThrowArrayBounds); 10501fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1051e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 10522700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadBaseIndexed(reg_ptr, rl_index.reg, rl_result.reg, scale, size); 1053b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 10541fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 10551fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValue(rl_dest, rl_result); 1056e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1057e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee} 1058e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1059e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee/* 1060e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * Generate array store 1061e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee * 1062e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee */ 10631fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArrayPut(int opt_flags, OpSize size, RegLocation rl_array, 1064a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers RegLocation rl_index, RegLocation rl_src, int scale, bool card_mark) { 1065e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee RegisterClass reg_class = oat_reg_class_by_size(size); 10662dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers int len_offset = mirror::Array::LengthOffset().Int32Value(); 10674ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee bool constant_index = rl_index.is_const; 1068e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1069a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers int data_offset; 1070a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers if (size == kLong || size == kDouble) { 10712dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int64_t)).Int32Value(); 1072e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 10732dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers data_offset = mirror::Array::DataOffset(sizeof(int32_t)).Int32Value(); 1074e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1075e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 10764ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // If index is constant, just fold it into the data offset. 10774ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 10781fd3346740dfb7f47be9922312b68a4227fada96buzbee data_offset += mir_graph_->ConstantValue(rl_index) << scale; 10794ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 10804ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 10811fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_array = LoadValue(rl_array, kCoreReg); 10824ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 10831fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_index = LoadValue(rl_index, kCoreReg); 10844ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 10854ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 10862700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_ptr; 1087773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers bool allocated_reg_ptr_temp = false; 10884ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 10892700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; 109000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee } else if (IsTemp(rl_array.reg.GetReg()) && !card_mark) { 109100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee Clobber(rl_array.reg.GetReg()); 10922700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee reg_ptr = rl_array.reg; 1093e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1094773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers allocated_reg_ptr_temp = true; 10951fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_ptr = AllocTemp(); 1096e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1097e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1098e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* null object? */ 10992700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenNullCheck(rl_array.reg, opt_flags); 1100e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1101e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee bool needs_range_check = (!(opt_flags & MIR_IGNORE_RANGE_CHECK)); 11022700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage reg_len; 1103e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 11041fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_len = AllocTemp(); 11057934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // NOTE: max live temps(4) here. 1106e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* Get len */ 11072700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadWordDisp(rl_array.reg, len_offset, reg_len); 1108b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1109b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison } else { 11102700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee ForceImplicitNullCheck(rl_array.reg, opt_flags); 1111e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1112e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* at this point, reg_ptr points to array, 2 live temps */ 11134ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src.wide || rl_src.fp || constant_index) { 1114e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_src.wide) { 11151fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, reg_class); 1116e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 11171fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, reg_class); 1118e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 11194ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!constant_index) { 11202700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegRegShift(kOpAdd, reg_ptr.GetReg(), rl_array.reg.GetReg(), rl_index.reg.GetReg(), 11214ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsl, scale)); 11224ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1123e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 11244ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (constant_index) { 11251fd3346740dfb7f47be9922312b68a4227fada96buzbee GenImmedCheck(kCondLs, reg_len, mir_graph_->ConstantValue(rl_index), kThrowConstantArrayBounds); 11264ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 11272700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenRegRegCheck(kCondLs, reg_len, rl_index.reg, kThrowArrayBounds); 11284ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 11291fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1130e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 11314ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1132e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (rl_src.wide) { 11332700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseDispWide(reg_ptr, data_offset, rl_src.reg); 1134e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 11352700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseDisp(reg_ptr, data_offset, rl_src.reg, size); 1136e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1137b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1138e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } else { 1139e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee /* reg_ptr -> array data */ 11402700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAdd, reg_ptr, rl_array.reg, data_offset); 11411fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValue(rl_src, reg_class); 1142e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee if (needs_range_check) { 11432700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee GenRegRegCheck(kCondUge, rl_index.reg, reg_len, kThrowArrayBounds); 11441fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_len); 1145e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 11462700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee StoreBaseIndexed(reg_ptr, rl_index.reg, rl_src.reg, scale, size); 1147b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison MarkPossibleNullPointerException(opt_flags); 1148e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 1149773aab1e8992b2834153eb23c976a4eb0da51a71Ian Rogers if (allocated_reg_ptr_temp) { 11501fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(reg_ptr); 11514ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 1152a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers if (card_mark) { 11532700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee MarkGCCard(rl_src.reg, rl_array.reg); 11546a791b26577a61fd14f4836c795d616869bd2957buzbee } 1155e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee} 1156e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 1157a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers 11581fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenShiftImmOpLong(Instruction::Code opcode, 11592ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_dest, RegLocation rl_src, RegLocation rl_shift) { 11601fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src = LoadValueWide(rl_src, kCoreReg); 11614ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Per spec, we only care about low 6 bits of shift amount. 11621fd3346740dfb7f47be9922312b68a4227fada96buzbee int shift_amount = mir_graph_->ConstantValue(rl_shift) & 0x3f; 11634ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 0) { 11641fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_src); 1165a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 11664ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 11671fd3346740dfb7f47be9922312b68a4227fada96buzbee if (BadOverlap(rl_src, rl_dest)) { 11681fd3346740dfb7f47be9922312b68a4227fada96buzbee GenShiftOpLong(opcode, rl_dest, rl_src, rl_shift); 1169a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 11704ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 11711fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 1172df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (opcode) { 11734ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHL_LONG: 11744ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHL_LONG_2ADDR: 11754ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 1) { 11762700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdd, rl_result.reg.GetLow(), rl_src.reg.GetLow(), rl_src.reg.GetLow()); 11772700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegReg(kOpAdc, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), rl_src.reg.GetHigh()); 11784ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount == 32) { 11792700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetHigh(), rl_src.reg); 11802700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetLow(), 0); 11814ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 11822700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetHigh(), rl_src.reg.GetLow(), shift_amount - 32); 11832700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetLow(), 0); 11844ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 11852700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 11862700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegRegShift(kOpOr, rl_result.reg.GetHighReg(), rl_result.reg.GetHighReg(), rl_src.reg.GetLowReg(), 11874ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsr, 32 - shift_amount)); 11882700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsl, rl_result.reg.GetLow(), rl_src.reg.GetLow(), shift_amount); 11894ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 11904ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 11914ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHR_LONG: 11924ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SHR_LONG_2ADDR: 11934ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 32) { 11942700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetLow(), rl_src.reg.GetHigh()); 11952700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), 31); 11964ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 11972700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetLow(), rl_src.reg.GetHigh(), shift_amount - 32); 11982700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), 31); 11994ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 12002700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 12012700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, t_reg, rl_src.reg.GetLow(), shift_amount); 12022700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegRegShift(kOpOr, rl_result.reg.GetLowReg(), t_reg.GetReg(), rl_src.reg.GetHighReg(), 12034ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsl, 32 - shift_amount)); 12041fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 12052700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 12064ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12074ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 12084ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::USHR_LONG: 12094ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::USHR_LONG_2ADDR: 12104ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (shift_amount == 32) { 12112700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegCopy(rl_result.reg.GetLow(), rl_src.reg.GetHigh()); 12122700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetHigh(), 0); 12134ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else if (shift_amount > 31) { 12142700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, rl_result.reg.GetLow(), rl_src.reg.GetHigh(), shift_amount - 32); 12152700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee LoadConstant(rl_result.reg.GetHigh(), 0); 12164ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 12172700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee RegStorage t_reg = AllocTemp(); 12182700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, t_reg, rl_src.reg.GetLow(), shift_amount); 12192700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegRegShift(kOpOr, rl_result.reg.GetLowReg(), t_reg.GetReg(), rl_src.reg.GetHighReg(), 12204ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee EncodeShift(kArmLsl, 32 - shift_amount)); 12211fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(t_reg); 12222700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpLsr, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), shift_amount); 12234ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12244ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 12254ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 12264ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected case"; 12274ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12281fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 12294ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 12304ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 12311fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid ArmMir2Lir::GenArithImmOpLong(Instruction::Code opcode, 12322ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_dest, RegLocation rl_src1, RegLocation rl_src2) { 12334ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((opcode == Instruction::SUB_LONG_2ADDR) || (opcode == Instruction::SUB_LONG)) { 12344ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!rl_src2.is_const) { 12354ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Don't bother with special handling for subtract from immediate. 12361fd3346740dfb7f47be9922312b68a4227fada96buzbee GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2); 1237a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 12384ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12394ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 12404ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Normalize 12414ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (!rl_src2.is_const) { 12424ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee DCHECK(rl_src1.is_const); 124358af1f9385742f70aca4fcb5e13aba53b8be2ef4Vladimir Marko std::swap(rl_src1, rl_src2); 12444ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12454ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12461fd3346740dfb7f47be9922312b68a4227fada96buzbee if (BadOverlap(rl_src1, rl_dest)) { 12471fd3346740dfb7f47be9922312b68a4227fada96buzbee GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2); 1248a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 12494ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12504ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee DCHECK(rl_src2.is_const); 12511fd3346740dfb7f47be9922312b68a4227fada96buzbee int64_t val = mir_graph_->ConstantValueWide(rl_src2); 12524ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee uint32_t val_lo = Low32Bits(val); 12534ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee uint32_t val_hi = High32Bits(val); 12544ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t mod_imm_lo = ModifiedImmediate(val_lo); 12554ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee int32_t mod_imm_hi = ModifiedImmediate(val_hi); 12564ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 12574ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Only a subset of add/sub immediate instructions set carry - so bail if we don't fit 1258df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom switch (opcode) { 12594ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG: 12604ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG_2ADDR: 12614ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG: 12624ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG_2ADDR: 12634ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if ((mod_imm_lo < 0) || (mod_imm_hi < 0)) { 12641fd3346740dfb7f47be9922312b68a4227fada96buzbee GenArithOpLong(opcode, rl_dest, rl_src1, rl_src2); 1265a5954be0aac5edd892fb31a209960543d00e4500buzbee return; 12664ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12674ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 12684ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 12694ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 12704ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12711fd3346740dfb7f47be9922312b68a4227fada96buzbee rl_src1 = LoadValueWide(rl_src1, kCoreReg); 12721fd3346740dfb7f47be9922312b68a4227fada96buzbee RegLocation rl_result = EvalLoc(rl_dest, kCoreReg, true); 12734ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // NOTE: once we've done the EvalLoc on dest, we can no longer bail. 12744ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee switch (opcode) { 12754ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG: 12764ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::ADD_LONG_2ADDR: 12772700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2AddRRI8M, rl_result.reg.GetLowReg(), rl_src1.reg.GetLowReg(), mod_imm_lo); 127800e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee NewLIR3(kThumb2AdcRRI8M, rl_result.reg.GetHighReg(), rl_src1.reg.GetHighReg(), mod_imm_hi); 12794ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 12804ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::OR_LONG: 12814ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::OR_LONG_2ADDR: 12822700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if ((val_lo != 0) || (rl_result.reg.GetLowReg() != rl_src1.reg.GetLowReg())) { 12832700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpOr, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 12844ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 128500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if ((val_hi != 0) || (rl_result.reg.GetHighReg() != rl_src1.reg.GetHighReg())) { 12862700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpOr, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 12874ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 12884ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 12894ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::XOR_LONG: 12904ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::XOR_LONG_2ADDR: 12912700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpXor, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 12922700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpXor, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 12934ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 12944ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::AND_LONG: 12954ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::AND_LONG_2ADDR: 12962700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee if ((val_lo != 0xffffffff) || (rl_result.reg.GetLowReg() != rl_src1.reg.GetLowReg())) { 12972700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAnd, rl_result.reg.GetLow(), rl_src1.reg.GetLow(), val_lo); 12984ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 129900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if ((val_hi != 0xffffffff) || (rl_result.reg.GetHighReg() != rl_src1.reg.GetHighReg())) { 13002700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee OpRegRegImm(kOpAnd, rl_result.reg.GetHigh(), rl_src1.reg.GetHigh(), val_hi); 13014ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13024ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 13034ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG_2ADDR: 13044ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case Instruction::SUB_LONG: 13052700f7e1edbcd2518f4978e4cd0e05a4149f91b6buzbee NewLIR3(kThumb2SubRRI8M, rl_result.reg.GetLowReg(), rl_src1.reg.GetLowReg(), mod_imm_lo); 130600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee NewLIR3(kThumb2SbcRRI8M, rl_result.reg.GetHighReg(), rl_src1.reg.GetHighReg(), mod_imm_hi); 13074ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee break; 13084ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 13094ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected opcode " << opcode; 13104ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 13111fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreValueWide(rl_dest, rl_result); 13124ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 13134ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 1314efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} // namespace art 1315