target_x86.cc revision 00e1ec6581b5b7b46ca4c314c2854e9caa647dd2
1efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 2efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Copyright (C) 2012 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 17f3e2cc4a38389aa75eb8ee3973a535254bf1c8d2Nicolas Geoffray#include <string> 18f3e2cc4a38389aa75eb8ee3973a535254bf1c8d2Nicolas Geoffray#include <inttypes.h> 19f3e2cc4a38389aa75eb8ee3973a535254bf1c8d2Nicolas Geoffray 2002031b185b4653e6c72e21f7a51238b903f6d638buzbee#include "codegen_x86.h" 217940e44f4517de5e2634a7e07d58d0fb26160513Brian Carlstrom#include "dex/compiler_internals.h" 227940e44f4517de5e2634a7e07d58d0fb26160513Brian Carlstrom#include "dex/quick/mir_to_lir-inl.h" 23e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell#include "mirror/array.h" 24e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell#include "mirror/string.h" 25641ce0371c2f0dc95d26be02d8366124c8b66653Brian Carlstrom#include "x86_lir.h" 26efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 27efc6369224b036a1fb77849f7ae65b3492c832c0buzbeenamespace art { 28efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 297934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom// FIXME: restore "static" when usage uncovered 30fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee/*static*/ int core_regs[] = { 31efc6369224b036a1fb77849f7ae65b3492c832c0buzbee rAX, rCX, rDX, rBX, rX86_SP, rBP, rSI, rDI 32efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#ifdef TARGET_REX_SUPPORT 33efc6369224b036a1fb77849f7ae65b3492c832c0buzbee r8, r9, r10, r11, r12, r13, r14, 15 34efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#endif 35efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 3652a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee/*static*/ int ReservedRegs[] = {rX86_SP}; 37fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee/*static*/ int core_temps[] = {rAX, rCX, rDX, rBX}; 3852a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee/*static*/ int FpRegs[] = { 39efc6369224b036a1fb77849f7ae65b3492c832c0buzbee fr0, fr1, fr2, fr3, fr4, fr5, fr6, fr7, 40efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#ifdef TARGET_REX_SUPPORT 41efc6369224b036a1fb77849f7ae65b3492c832c0buzbee fr8, fr9, fr10, fr11, fr12, fr13, fr14, fr15 42efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#endif 43efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 44fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee/*static*/ int fp_temps[] = { 45efc6369224b036a1fb77849f7ae65b3492c832c0buzbee fr0, fr1, fr2, fr3, fr4, fr5, fr6, fr7, 46efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#ifdef TARGET_REX_SUPPORT 47efc6369224b036a1fb77849f7ae65b3492c832c0buzbee fr8, fr9, fr10, fr11, fr12, fr13, fr14, fr15 48efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#endif 49efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 50efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 512ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromRegLocation X86Mir2Lir::LocCReturn() { 5200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee return x86_loc_c_return; 53efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 54efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 552ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromRegLocation X86Mir2Lir::LocCReturnWide() { 5600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee return x86_loc_c_return_wide; 57efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 58efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 592ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromRegLocation X86Mir2Lir::LocCReturnFloat() { 6000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee return x86_loc_c_return_float; 61efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 62efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 632ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromRegLocation X86Mir2Lir::LocCReturnDouble() { 6400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee return x86_loc_c_return_double; 65efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 66efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 67efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Return a target-dependent special register. 681fd3346740dfb7f47be9922312b68a4227fada96buzbeeint X86Mir2Lir::TargetReg(SpecialTargetRegister reg) { 69efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int res = INVALID_REG; 70efc6369224b036a1fb77849f7ae65b3492c832c0buzbee switch (reg) { 71efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kSelf: res = rX86_SELF; break; 72efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kSuspend: res = rX86_SUSPEND; break; 73efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kLr: res = rX86_LR; break; 74efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kPc: res = rX86_PC; break; 75efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kSp: res = rX86_SP; break; 76efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kArg0: res = rX86_ARG0; break; 77efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kArg1: res = rX86_ARG1; break; 78efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kArg2: res = rX86_ARG2; break; 79efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kArg3: res = rX86_ARG3; break; 80efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kFArg0: res = rX86_FARG0; break; 81efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kFArg1: res = rX86_FARG1; break; 82efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kFArg2: res = rX86_FARG2; break; 83efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kFArg3: res = rX86_FARG3; break; 84efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kRet0: res = rX86_RET0; break; 85efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kRet1: res = rX86_RET1; break; 86efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kInvokeTgt: res = rX86_INVOKE_TGT; break; 8788474b416eb257078e590bf9bc7957cee604a186Jeff Hao case kHiddenArg: res = rAX; break; 8888474b416eb257078e590bf9bc7957cee604a186Jeff Hao case kHiddenFpArg: res = fr0; break; 89efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case kCount: res = rX86_COUNT; break; 90efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 91efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return res; 92efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 93efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 943bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoruint X86Mir2Lir::GetArgMappingToPhysicalReg(int arg_num) { 953bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru // For the 32-bit internal ABI, the first 3 arguments are passed in registers. 963bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru // TODO: This is not 64-bit compliant and depends on new internal ABI. 973bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru switch (arg_num) { 983bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru case 0: 993bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru return rX86_ARG1; 1003bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru case 1: 1013bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru return rX86_ARG2; 1023bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru case 2: 1033bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru return rX86_ARG3; 1043bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru default: 1053bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru return INVALID_REG; 1063bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru } 1073bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru} 1083bc01748ef1c3e43361bdf520947a9d656658bf8Razvan A Lupusoru 109efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Create a double from a pair of singles. 1102ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromint X86Mir2Lir::S2d(int low_reg, int high_reg) { 111fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee return X86_S2D(low_reg, high_reg); 112efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 113efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 114efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Return mask to strip off fp reg flags and bias. 1152ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromuint32_t X86Mir2Lir::FpRegMask() { 116efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return X86_FP_REG_MASK; 117efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 118efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 119efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// True if both regs single, both core or both double. 1202ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrombool X86Mir2Lir::SameRegType(int reg1, int reg2) { 121efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return (X86_REGTYPE(reg1) == X86_REGTYPE(reg2)); 122efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 123efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 124efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 125efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Decode the register id. 126efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 1272ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromuint64_t X86Mir2Lir::GetRegMaskCommon(int reg) { 128eaf09bc65f9a10d12befcdb239156938c9bceef2buzbee uint64_t seed; 129efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int shift; 130fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int reg_id; 131efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 132fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee reg_id = reg & 0xf; 133efc6369224b036a1fb77849f7ae65b3492c832c0buzbee /* Double registers in x86 are just a single FP register */ 134efc6369224b036a1fb77849f7ae65b3492c832c0buzbee seed = 1; 135efc6369224b036a1fb77849f7ae65b3492c832c0buzbee /* FP register starts at bit position 16 */ 136efc6369224b036a1fb77849f7ae65b3492c832c0buzbee shift = X86_FPREG(reg) ? kX86FPReg0 : 0; 137efc6369224b036a1fb77849f7ae65b3492c832c0buzbee /* Expand the double register id into single offset */ 138fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee shift += reg_id; 139efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return (seed << shift); 140efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 141efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 1422ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromuint64_t X86Mir2Lir::GetPCUseDefEncoding() { 143efc6369224b036a1fb77849f7ae65b3492c832c0buzbee /* 144efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * FIXME: might make sense to use a virtual resource encoding bit for pc. Might be 145efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * able to clean up some of the x86/Arm_Mips differences 146efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 14752a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected call to GetPCUseDefEncoding for x86"; 148efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return 0ULL; 149efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 150efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 151b48819db07f9a0992a72173380c24249d7fc648abuzbeevoid X86Mir2Lir::SetupTargetResourceMasks(LIR* lir, uint64_t flags) { 1521fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK_EQ(cu_->instruction_set, kX86); 153b48819db07f9a0992a72173380c24249d7fc648abuzbee DCHECK(!lir->flags.use_def_invalid); 154efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 155efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // X86-specific resource map setup here. 156efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (flags & REG_USE_SP) { 157b48819db07f9a0992a72173380c24249d7fc648abuzbee lir->u.m.use_mask |= ENCODE_X86_REG_SP; 158efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 159efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 160efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (flags & REG_DEF_SP) { 161b48819db07f9a0992a72173380c24249d7fc648abuzbee lir->u.m.def_mask |= ENCODE_X86_REG_SP; 162efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 163efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 164efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (flags & REG_DEFA) { 165b48819db07f9a0992a72173380c24249d7fc648abuzbee SetupRegMask(&lir->u.m.def_mask, rAX); 166efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 167efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 168efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (flags & REG_DEFD) { 169b48819db07f9a0992a72173380c24249d7fc648abuzbee SetupRegMask(&lir->u.m.def_mask, rDX); 170efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 171efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (flags & REG_USEA) { 172b48819db07f9a0992a72173380c24249d7fc648abuzbee SetupRegMask(&lir->u.m.use_mask, rAX); 173efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 174efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 175efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (flags & REG_USEC) { 176b48819db07f9a0992a72173380c24249d7fc648abuzbee SetupRegMask(&lir->u.m.use_mask, rCX); 177efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 178efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 179efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (flags & REG_USED) { 180b48819db07f9a0992a72173380c24249d7fc648abuzbee SetupRegMask(&lir->u.m.use_mask, rDX); 181efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 18270b797d998f2a28e39f7d6ffc8a07c9cbc47da14Vladimir Marko 18370b797d998f2a28e39f7d6ffc8a07c9cbc47da14Vladimir Marko if (flags & REG_USEB) { 18470b797d998f2a28e39f7d6ffc8a07c9cbc47da14Vladimir Marko SetupRegMask(&lir->u.m.use_mask, rBX); 18570b797d998f2a28e39f7d6ffc8a07c9cbc47da14Vladimir Marko } 1864028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 1874028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Fixup hard to describe instruction: Uses rAX, rCX, rDI; sets rDI. 1884028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell if (lir->opcode == kX86RepneScasw) { 1894028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell SetupRegMask(&lir->u.m.use_mask, rAX); 1904028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell SetupRegMask(&lir->u.m.use_mask, rCX); 1914028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell SetupRegMask(&lir->u.m.use_mask, rDI); 1924028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell SetupRegMask(&lir->u.m.def_mask, rDI); 1934028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 194efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 195efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 196efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* For dumping instructions */ 197efc6369224b036a1fb77849f7ae65b3492c832c0buzbeestatic const char* x86RegName[] = { 198efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi", 199efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15" 200efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 201efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 202efc6369224b036a1fb77849f7ae65b3492c832c0buzbeestatic const char* x86CondName[] = { 203efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "O", 204efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "NO", 205efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "B/NAE/C", 206efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "NB/AE/NC", 207efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "Z/EQ", 208efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "NZ/NE", 209efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "BE/NA", 210efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "NBE/A", 211efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "S", 212efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "NS", 213efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "P/PE", 214efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "NP/PO", 215efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "L/NGE", 216efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "NL/GE", 217efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "LE/NG", 218efc6369224b036a1fb77849f7ae65b3492c832c0buzbee "NLE/G" 219efc6369224b036a1fb77849f7ae65b3492c832c0buzbee}; 220efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 221efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 222efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Interpret a format string and build a string no longer than size 223efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * See format key in Assemble.cc. 224efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 2251fd3346740dfb7f47be9922312b68a4227fada96buzbeestd::string X86Mir2Lir::BuildInsnString(const char *fmt, LIR *lir, unsigned char* base_addr) { 226efc6369224b036a1fb77849f7ae65b3492c832c0buzbee std::string buf; 227efc6369224b036a1fb77849f7ae65b3492c832c0buzbee size_t i = 0; 228efc6369224b036a1fb77849f7ae65b3492c832c0buzbee size_t fmt_len = strlen(fmt); 229efc6369224b036a1fb77849f7ae65b3492c832c0buzbee while (i < fmt_len) { 230efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (fmt[i] != '!') { 231efc6369224b036a1fb77849f7ae65b3492c832c0buzbee buf += fmt[i]; 232efc6369224b036a1fb77849f7ae65b3492c832c0buzbee i++; 233efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 234efc6369224b036a1fb77849f7ae65b3492c832c0buzbee i++; 235efc6369224b036a1fb77849f7ae65b3492c832c0buzbee DCHECK_LT(i, fmt_len); 236efc6369224b036a1fb77849f7ae65b3492c832c0buzbee char operand_number_ch = fmt[i]; 237efc6369224b036a1fb77849f7ae65b3492c832c0buzbee i++; 238efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (operand_number_ch == '!') { 239efc6369224b036a1fb77849f7ae65b3492c832c0buzbee buf += "!"; 240efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 241efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int operand_number = operand_number_ch - '0'; 242efc6369224b036a1fb77849f7ae65b3492c832c0buzbee DCHECK_LT(operand_number, 6); // Expect upto 6 LIR operands. 243efc6369224b036a1fb77849f7ae65b3492c832c0buzbee DCHECK_LT(i, fmt_len); 244efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int operand = lir->operands[operand_number]; 245efc6369224b036a1fb77849f7ae65b3492c832c0buzbee switch (fmt[i]) { 246efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 'c': 247efc6369224b036a1fb77849f7ae65b3492c832c0buzbee DCHECK_LT(static_cast<size_t>(operand), sizeof(x86CondName)); 248efc6369224b036a1fb77849f7ae65b3492c832c0buzbee buf += x86CondName[operand]; 249efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 250efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 'd': 251efc6369224b036a1fb77849f7ae65b3492c832c0buzbee buf += StringPrintf("%d", operand); 252efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 253efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 'p': { 2540d82948094d9a198e01aa95f64012bdedd5b6fc9buzbee EmbeddedData *tab_rec = reinterpret_cast<EmbeddedData*>(UnwrapPointer(operand)); 255fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee buf += StringPrintf("0x%08x", tab_rec->offset); 256efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 257efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 258efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 'r': 259efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (X86_FPREG(operand) || X86_DOUBLEREG(operand)) { 260efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int fp_reg = operand & X86_FP_REG_MASK; 261efc6369224b036a1fb77849f7ae65b3492c832c0buzbee buf += StringPrintf("xmm%d", fp_reg); 262efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 263efc6369224b036a1fb77849f7ae65b3492c832c0buzbee DCHECK_LT(static_cast<size_t>(operand), sizeof(x86RegName)); 264efc6369224b036a1fb77849f7ae65b3492c832c0buzbee buf += x86RegName[operand]; 265efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 266efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 267efc6369224b036a1fb77849f7ae65b3492c832c0buzbee case 't': 268107c31e598b649a8bb8d959d6a0377937e63e624Ian Rogers buf += StringPrintf("0x%08" PRIxPTR " (L%p)", 269107c31e598b649a8bb8d959d6a0377937e63e624Ian Rogers reinterpret_cast<uintptr_t>(base_addr) + lir->offset + operand, 270107c31e598b649a8bb8d959d6a0377937e63e624Ian Rogers lir->target); 271efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 272efc6369224b036a1fb77849f7ae65b3492c832c0buzbee default: 273efc6369224b036a1fb77849f7ae65b3492c832c0buzbee buf += StringPrintf("DecodeError '%c'", fmt[i]); 274efc6369224b036a1fb77849f7ae65b3492c832c0buzbee break; 275efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 276efc6369224b036a1fb77849f7ae65b3492c832c0buzbee i++; 277efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 278efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 279efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 280efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return buf; 281efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 282efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 2832ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid X86Mir2Lir::DumpResourceMask(LIR *x86LIR, uint64_t mask, const char *prefix) { 284efc6369224b036a1fb77849f7ae65b3492c832c0buzbee char buf[256]; 285efc6369224b036a1fb77849f7ae65b3492c832c0buzbee buf[0] = 0; 286efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 287efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (mask == ENCODE_ALL) { 288efc6369224b036a1fb77849f7ae65b3492c832c0buzbee strcpy(buf, "all"); 289efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } else { 290efc6369224b036a1fb77849f7ae65b3492c832c0buzbee char num[8]; 291efc6369224b036a1fb77849f7ae65b3492c832c0buzbee int i; 292efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 293efc6369224b036a1fb77849f7ae65b3492c832c0buzbee for (i = 0; i < kX86RegEnd; i++) { 294efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (mask & (1ULL << i)) { 295988e6ea9ac66edf1e205851df9bb53de3f3763f3Ian Rogers snprintf(num, arraysize(num), "%d ", i); 296efc6369224b036a1fb77849f7ae65b3492c832c0buzbee strcat(buf, num); 297efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 298efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 299efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 300efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (mask & ENCODE_CCODE) { 301efc6369224b036a1fb77849f7ae65b3492c832c0buzbee strcat(buf, "cc "); 302efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 303efc6369224b036a1fb77849f7ae65b3492c832c0buzbee /* Memory bits */ 304efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (x86LIR && (mask & ENCODE_DALVIK_REG)) { 305988e6ea9ac66edf1e205851df9bb53de3f3763f3Ian Rogers snprintf(buf + strlen(buf), arraysize(buf) - strlen(buf), "dr%d%s", 306988e6ea9ac66edf1e205851df9bb53de3f3763f3Ian Rogers DECODE_ALIAS_INFO_REG(x86LIR->flags.alias_info), 307988e6ea9ac66edf1e205851df9bb53de3f3763f3Ian Rogers (DECODE_ALIAS_INFO_WIDE(x86LIR->flags.alias_info)) ? "(+1)" : ""); 308efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 309efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (mask & ENCODE_LITERAL) { 310efc6369224b036a1fb77849f7ae65b3492c832c0buzbee strcat(buf, "lit "); 311efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 312efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 313efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (mask & ENCODE_HEAP_REF) { 314efc6369224b036a1fb77849f7ae65b3492c832c0buzbee strcat(buf, "heap "); 315efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 316efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (mask & ENCODE_MUST_NOT_ALIAS) { 317efc6369224b036a1fb77849f7ae65b3492c832c0buzbee strcat(buf, "noalias "); 318efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 319efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 320efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (buf[0]) { 321efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LOG(INFO) << prefix << ": " << buf; 322efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 323efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 32402031b185b4653e6c72e21f7a51238b903f6d638buzbee 3251fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid X86Mir2Lir::AdjustSpillMask() { 326efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Adjustment for LR spilling, x86 has no LR so nothing to do here 3271fd3346740dfb7f47be9922312b68a4227fada96buzbee core_spill_mask_ |= (1 << rRET); 3281fd3346740dfb7f47be9922312b68a4227fada96buzbee num_core_spills_++; 329efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 330efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 331efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* 332efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Mark a callee-save fp register as promoted. Note that 333efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * vpush/vpop uses contiguous register lists so we must 334efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * include any holes in the mask. Associate holes with 335efc6369224b036a1fb77849f7ae65b3492c832c0buzbee * Dalvik register INVALID_VREG (0xFFFFU). 336efc6369224b036a1fb77849f7ae65b3492c832c0buzbee */ 3372ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid X86Mir2Lir::MarkPreservedSingle(int v_reg, int reg) { 33852a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee UNIMPLEMENTED(WARNING) << "MarkPreservedSingle"; 339efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#if 0 340efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LOG(FATAL) << "No support yet for promoted FP regs"; 341efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#endif 342efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 343efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 3442ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid X86Mir2Lir::FlushRegWide(int reg1, int reg2) { 3451fd3346740dfb7f47be9922312b68a4227fada96buzbee RegisterInfo* info1 = GetRegInfo(reg1); 3461fd3346740dfb7f47be9922312b68a4227fada96buzbee RegisterInfo* info2 = GetRegInfo(reg2); 347efc6369224b036a1fb77849f7ae65b3492c832c0buzbee DCHECK(info1 && info2 && info1->pair && info2->pair && 348efc6369224b036a1fb77849f7ae65b3492c832c0buzbee (info1->partner == info2->reg) && 349efc6369224b036a1fb77849f7ae65b3492c832c0buzbee (info2->partner == info1->reg)); 350efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if ((info1->live && info1->dirty) || (info2->live && info2->dirty)) { 351fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (!(info1->is_temp && info2->is_temp)) { 352fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee /* Should not happen. If it does, there's a problem in eval_loc */ 353efc6369224b036a1fb77849f7ae65b3492c832c0buzbee LOG(FATAL) << "Long half-temp, half-promoted"; 354efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 355efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 356efc6369224b036a1fb77849f7ae65b3492c832c0buzbee info1->dirty = false; 357efc6369224b036a1fb77849f7ae65b3492c832c0buzbee info2->dirty = false; 3581fd3346740dfb7f47be9922312b68a4227fada96buzbee if (mir_graph_->SRegToVReg(info2->s_reg) < mir_graph_->SRegToVReg(info1->s_reg)) 359efc6369224b036a1fb77849f7ae65b3492c832c0buzbee info1 = info2; 3601fd3346740dfb7f47be9922312b68a4227fada96buzbee int v_reg = mir_graph_->SRegToVReg(info1->s_reg); 3611fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreBaseDispWide(rX86_SP, VRegOffset(v_reg), info1->reg, info1->partner); 362efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 363efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 364efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 3652ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid X86Mir2Lir::FlushReg(int reg) { 3661fd3346740dfb7f47be9922312b68a4227fada96buzbee RegisterInfo* info = GetRegInfo(reg); 367efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (info->live && info->dirty) { 368efc6369224b036a1fb77849f7ae65b3492c832c0buzbee info->dirty = false; 3691fd3346740dfb7f47be9922312b68a4227fada96buzbee int v_reg = mir_graph_->SRegToVReg(info->s_reg); 3701fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreBaseDisp(rX86_SP, VRegOffset(v_reg), reg, kWord); 371efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 372efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 373efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 374efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* Give access to the target-dependent FP register encoding to common code */ 3751fd3346740dfb7f47be9922312b68a4227fada96buzbeebool X86Mir2Lir::IsFpReg(int reg) { 376efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return X86_FPREG(reg); 377efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 378efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 379efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* Clobber all regs that might be used by an external C call */ 38031c2aac7137b69d5622eea09597500731fbee2efVladimir Markovoid X86Mir2Lir::ClobberCallerSave() { 3811fd3346740dfb7f47be9922312b68a4227fada96buzbee Clobber(rAX); 3821fd3346740dfb7f47be9922312b68a4227fada96buzbee Clobber(rCX); 3831fd3346740dfb7f47be9922312b68a4227fada96buzbee Clobber(rDX); 38431c2aac7137b69d5622eea09597500731fbee2efVladimir Marko Clobber(rBX); 385efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 386efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 3871fd3346740dfb7f47be9922312b68a4227fada96buzbeeRegLocation X86Mir2Lir::GetReturnWideAlt() { 38852a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee RegLocation res = LocCReturnWide(); 38900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee CHECK(res.reg.GetReg() == rAX); 39000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee CHECK(res.reg.GetHighReg() == rDX); 3911fd3346740dfb7f47be9922312b68a4227fada96buzbee Clobber(rAX); 3921fd3346740dfb7f47be9922312b68a4227fada96buzbee Clobber(rDX); 3931fd3346740dfb7f47be9922312b68a4227fada96buzbee MarkInUse(rAX); 3941fd3346740dfb7f47be9922312b68a4227fada96buzbee MarkInUse(rDX); 39500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee MarkPair(res.reg.GetReg(), res.reg.GetHighReg()); 396efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return res; 397efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 398efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 3992ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromRegLocation X86Mir2Lir::GetReturnAlt() { 40052a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee RegLocation res = LocCReturn(); 40100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee res.reg.SetReg(rDX); 4021fd3346740dfb7f47be9922312b68a4227fada96buzbee Clobber(rDX); 4031fd3346740dfb7f47be9922312b68a4227fada96buzbee MarkInUse(rDX); 404efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return res; 405efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 406efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 407efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* To be used when explicitly managing register use */ 4082ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid X86Mir2Lir::LockCallTemps() { 4091fd3346740dfb7f47be9922312b68a4227fada96buzbee LockTemp(rX86_ARG0); 4101fd3346740dfb7f47be9922312b68a4227fada96buzbee LockTemp(rX86_ARG1); 4111fd3346740dfb7f47be9922312b68a4227fada96buzbee LockTemp(rX86_ARG2); 4121fd3346740dfb7f47be9922312b68a4227fada96buzbee LockTemp(rX86_ARG3); 413efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 414efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 415efc6369224b036a1fb77849f7ae65b3492c832c0buzbee/* To be used when explicitly managing register use */ 4162ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid X86Mir2Lir::FreeCallTemps() { 4171fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(rX86_ARG0); 4181fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(rX86_ARG1); 4191fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(rX86_ARG2); 4201fd3346740dfb7f47be9922312b68a4227fada96buzbee FreeTemp(rX86_ARG3); 421efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 422efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4232ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid X86Mir2Lir::GenMemBarrier(MemBarrierKind barrier_kind) { 424efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#if ANDROID_SMP != 0 425efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // TODO: optimize fences 4261fd3346740dfb7f47be9922312b68a4227fada96buzbee NewLIR0(kX86Mfence); 427efc6369224b036a1fb77849f7ae65b3492c832c0buzbee#endif 428efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 42900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee 43000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee// Alloc a pair of core registers, or a double. 43100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill BuzbeeRegStorage X86Mir2Lir::AllocTypedTempWide(bool fp_hint, int reg_class) { 432fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int high_reg; 433fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int low_reg; 434efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 435fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (((reg_class == kAnyReg) && fp_hint) || (reg_class == kFPReg)) { 4361fd3346740dfb7f47be9922312b68a4227fada96buzbee low_reg = AllocTempDouble(); 437d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee high_reg = low_reg; // only one allocated! 43800e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee // TODO: take advantage of 64-bit notation. 43900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee return RegStorage(RegStorage::k64BitPair, low_reg, high_reg); 440efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 4411fd3346740dfb7f47be9922312b68a4227fada96buzbee low_reg = AllocTemp(); 4421fd3346740dfb7f47be9922312b68a4227fada96buzbee high_reg = AllocTemp(); 44300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee return RegStorage(RegStorage::k64BitPair, low_reg, high_reg); 444efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 445efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4461fd3346740dfb7f47be9922312b68a4227fada96buzbeeint X86Mir2Lir::AllocTypedTemp(bool fp_hint, int reg_class) { 447fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (((reg_class == kAnyReg) && fp_hint) || (reg_class == kFPReg)) { 4481fd3346740dfb7f47be9922312b68a4227fada96buzbee return AllocTempFloat(); 449efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 4501fd3346740dfb7f47be9922312b68a4227fada96buzbee return AllocTemp(); 451efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 452efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4531fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid X86Mir2Lir::CompilerInitializeRegAlloc() { 454fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int num_regs = sizeof(core_regs)/sizeof(*core_regs); 455fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int num_reserved = sizeof(ReservedRegs)/sizeof(*ReservedRegs); 456fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int num_temps = sizeof(core_temps)/sizeof(*core_temps); 457fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int num_fp_regs = sizeof(FpRegs)/sizeof(*FpRegs); 458fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int num_fp_temps = sizeof(fp_temps)/sizeof(*fp_temps); 459f6c4b3ba3825de1dbb3e747a68b809c6cc8eb4dbMathieu Chartier reg_pool_ = static_cast<RegisterPool*>(arena_->Alloc(sizeof(*reg_pool_), 460f6c4b3ba3825de1dbb3e747a68b809c6cc8eb4dbMathieu Chartier ArenaAllocator::kAllocRegAlloc)); 4611fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_pool_->num_core_regs = num_regs; 4621fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_pool_->core_regs = 463f6c4b3ba3825de1dbb3e747a68b809c6cc8eb4dbMathieu Chartier static_cast<RegisterInfo*>(arena_->Alloc(num_regs * sizeof(*reg_pool_->core_regs), 464f6c4b3ba3825de1dbb3e747a68b809c6cc8eb4dbMathieu Chartier ArenaAllocator::kAllocRegAlloc)); 4651fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_pool_->num_fp_regs = num_fp_regs; 4661fd3346740dfb7f47be9922312b68a4227fada96buzbee reg_pool_->FPRegs = 467f6c4b3ba3825de1dbb3e747a68b809c6cc8eb4dbMathieu Chartier static_cast<RegisterInfo *>(arena_->Alloc(num_fp_regs * sizeof(*reg_pool_->FPRegs), 468f6c4b3ba3825de1dbb3e747a68b809c6cc8eb4dbMathieu Chartier ArenaAllocator::kAllocRegAlloc)); 4691fd3346740dfb7f47be9922312b68a4227fada96buzbee CompilerInitPool(reg_pool_->core_regs, core_regs, reg_pool_->num_core_regs); 4701fd3346740dfb7f47be9922312b68a4227fada96buzbee CompilerInitPool(reg_pool_->FPRegs, FpRegs, reg_pool_->num_fp_regs); 471efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Keep special registers from being allocated 472fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee for (int i = 0; i < num_reserved; i++) { 4731fd3346740dfb7f47be9922312b68a4227fada96buzbee MarkInUse(ReservedRegs[i]); 474efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 475efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Mark temp regs - all others not in use can be used for promotion 476fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee for (int i = 0; i < num_temps; i++) { 4771fd3346740dfb7f47be9922312b68a4227fada96buzbee MarkTemp(core_temps[i]); 478efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 479fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee for (int i = 0; i < num_fp_temps; i++) { 4801fd3346740dfb7f47be9922312b68a4227fada96buzbee MarkTemp(fp_temps[i]); 481efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 482efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 483efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4841fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid X86Mir2Lir::FreeRegLocTemps(RegLocation rl_keep, 4852ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom RegLocation rl_free) { 48600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if ((rl_free.reg.GetReg() != rl_keep.reg.GetReg()) && (rl_free.reg.GetReg() != rl_keep.reg.GetHighReg()) && 48700e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee (rl_free.reg.GetHighReg() != rl_keep.reg.GetReg()) && (rl_free.reg.GetHighReg() != rl_keep.reg.GetHighReg())) { 488efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // No overlap, free both 48900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_free.reg.GetReg()); 49000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee FreeTemp(rl_free.reg.GetHighReg()); 491efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 492efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 493efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 4941fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid X86Mir2Lir::SpillCoreRegs() { 4951fd3346740dfb7f47be9922312b68a4227fada96buzbee if (num_core_spills_ == 0) { 496efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return; 497efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 498efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Spill mask not including fake return address register 4991fd3346740dfb7f47be9922312b68a4227fada96buzbee uint32_t mask = core_spill_mask_ & ~(1 << rRET); 5001fd3346740dfb7f47be9922312b68a4227fada96buzbee int offset = frame_size_ - (4 * num_core_spills_); 501efc6369224b036a1fb77849f7ae65b3492c832c0buzbee for (int reg = 0; mask; mask >>= 1, reg++) { 502efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (mask & 0x1) { 5031fd3346740dfb7f47be9922312b68a4227fada96buzbee StoreWordDisp(rX86_SP, offset, reg); 504efc6369224b036a1fb77849f7ae65b3492c832c0buzbee offset += 4; 505efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 506efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 507efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 508efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 5091fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid X86Mir2Lir::UnSpillCoreRegs() { 5101fd3346740dfb7f47be9922312b68a4227fada96buzbee if (num_core_spills_ == 0) { 511efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return; 512efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 513efc6369224b036a1fb77849f7ae65b3492c832c0buzbee // Spill mask not including fake return address register 5141fd3346740dfb7f47be9922312b68a4227fada96buzbee uint32_t mask = core_spill_mask_ & ~(1 << rRET); 5151fd3346740dfb7f47be9922312b68a4227fada96buzbee int offset = frame_size_ - (4 * num_core_spills_); 516efc6369224b036a1fb77849f7ae65b3492c832c0buzbee for (int reg = 0; mask; mask >>= 1, reg++) { 517efc6369224b036a1fb77849f7ae65b3492c832c0buzbee if (mask & 0x1) { 5181fd3346740dfb7f47be9922312b68a4227fada96buzbee LoadWordDisp(rX86_SP, offset, reg); 519efc6369224b036a1fb77849f7ae65b3492c832c0buzbee offset += 4; 520efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 521efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 522efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 523efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 5242ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrombool X86Mir2Lir::IsUnconditionalBranch(LIR* lir) { 525cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee return (lir->opcode == kX86Jmp8 || lir->opcode == kX86Jmp32); 526efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 527efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 528862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbeeX86Mir2Lir::X86Mir2Lir(CompilationUnit* cu, MIRGraph* mir_graph, ArenaAllocator* arena) 52955d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell : Mir2Lir(cu, mir_graph, arena), 53055d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell method_address_insns_(arena, 100, kGrowableArrayMisc), 53155d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell class_type_address_insns_(arena, 100, kGrowableArrayMisc), 532ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell call_method_insns_(arena, 100, kGrowableArrayMisc), 533ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell stack_decrement_(nullptr), stack_increment_(nullptr) { 53455d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell store_method_addr_used_ = false; 53502031b185b4653e6c72e21f7a51238b903f6d638buzbee for (int i = 0; i < kX86Last; i++) { 5361fd3346740dfb7f47be9922312b68a4227fada96buzbee if (X86Mir2Lir::EncodingMap[i].opcode != i) { 5371fd3346740dfb7f47be9922312b68a4227fada96buzbee LOG(FATAL) << "Encoding order for " << X86Mir2Lir::EncodingMap[i].name 538efc6369224b036a1fb77849f7ae65b3492c832c0buzbee << " is wrong: expecting " << i << ", seeing " 5391fd3346740dfb7f47be9922312b68a4227fada96buzbee << static_cast<int>(X86Mir2Lir::EncodingMap[i].opcode); 540efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 541efc6369224b036a1fb77849f7ae65b3492c832c0buzbee } 5421fd3346740dfb7f47be9922312b68a4227fada96buzbee} 5431fd3346740dfb7f47be9922312b68a4227fada96buzbee 544862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbeeMir2Lir* X86CodeGenerator(CompilationUnit* const cu, MIRGraph* const mir_graph, 545862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee ArenaAllocator* const arena) { 546862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee return new X86Mir2Lir(cu, mir_graph, arena); 547efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 548efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 549efc6369224b036a1fb77849f7ae65b3492c832c0buzbee// Not used in x86 550468532ea115657709bc32ee498e701a4c71762d4Ian Rogersint X86Mir2Lir::LoadHelper(ThreadOffset offset) { 55152a77fc135f0e0df57ee24641c3f5ae415ff7bd6buzbee LOG(FATAL) << "Unexpected use of LoadHelper in x86"; 552efc6369224b036a1fb77849f7ae65b3492c832c0buzbee return INVALID_REG; 553efc6369224b036a1fb77849f7ae65b3492c832c0buzbee} 554efc6369224b036a1fb77849f7ae65b3492c832c0buzbee 5552ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromuint64_t X86Mir2Lir::GetTargetInstFlags(int opcode) { 556409fe94ad529d9334587be80b9f6a3d166805508buzbee DCHECK(!IsPseudoLirOp(opcode)); 5571fd3346740dfb7f47be9922312b68a4227fada96buzbee return X86Mir2Lir::EncodingMap[opcode].flags; 5581bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee} 5591bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee 5602ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromconst char* X86Mir2Lir::GetTargetInstName(int opcode) { 561409fe94ad529d9334587be80b9f6a3d166805508buzbee DCHECK(!IsPseudoLirOp(opcode)); 5621fd3346740dfb7f47be9922312b68a4227fada96buzbee return X86Mir2Lir::EncodingMap[opcode].name; 5631bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee} 5641bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee 5652ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromconst char* X86Mir2Lir::GetTargetInstFmt(int opcode) { 566409fe94ad529d9334587be80b9f6a3d166805508buzbee DCHECK(!IsPseudoLirOp(opcode)); 5671fd3346740dfb7f47be9922312b68a4227fada96buzbee return X86Mir2Lir::EncodingMap[opcode].fmt; 5681bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee} 5691bc37c60da71c923ea9a2e99d31ba1b3d76d79a8buzbee 570d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee/* 571d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee * Return an updated location record with current in-register status. 572d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee * If the value lives in live temps, reflect that fact. No code 573d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee * is generated. If the live value is part of an older pair, 574d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee * clobber both low and high. 575d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee */ 576d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee// TODO: Reunify with common code after 'pair mess' has been fixed 577d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill BuzbeeRegLocation X86Mir2Lir::UpdateLocWide(RegLocation loc) { 578d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK(loc.wide); 579d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK(CheckCorePoolSanity()); 580d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (loc.location != kLocPhysReg) { 581d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK((loc.location == kLocDalvikFrame) || 582d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee (loc.location == kLocCompilerTemp)); 583d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // Are the dalvik regs already live in physical registers? 584d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee RegisterInfo* info_lo = AllocLive(loc.s_reg_low, kAnyReg); 585d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 586d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // Handle FP registers specially on x86. 587d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (info_lo && IsFpReg(info_lo->reg)) { 588d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee bool match = true; 589d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 590d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // We can't match a FP register with a pair of Core registers. 591d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee match = match && (info_lo->pair == 0); 592d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 593d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (match) { 594d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // We can reuse;update the register usage info. 595d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee loc.location = kLocPhysReg; 596d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee loc.vec_len = kVectorLength8; 59700e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee // TODO: use k64BitVector 59800e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee loc.reg = RegStorage(RegStorage::k64BitPair, info_lo->reg, info_lo->reg); 59900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee DCHECK(IsFpReg(loc.reg.GetReg())); 600d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee return loc; 601d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 602d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // We can't easily reuse; clobber and free any overlaps. 603d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (info_lo) { 604d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee Clobber(info_lo->reg); 605d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee FreeTemp(info_lo->reg); 606d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (info_lo->pair) 607d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee Clobber(info_lo->partner); 608d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 609d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } else { 610d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee RegisterInfo* info_hi = AllocLive(GetSRegHi(loc.s_reg_low), kAnyReg); 611d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee bool match = true; 612d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee match = match && (info_lo != NULL); 613d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee match = match && (info_hi != NULL); 614d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // Are they both core or both FP? 615d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee match = match && (IsFpReg(info_lo->reg) == IsFpReg(info_hi->reg)); 616d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // If a pair of floating point singles, are they properly aligned? 617d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (match && IsFpReg(info_lo->reg)) { 618d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee match &= ((info_lo->reg & 0x1) == 0); 619d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee match &= ((info_hi->reg - info_lo->reg) == 1); 620d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 621d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // If previously used as a pair, it is the same pair? 622d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (match && (info_lo->pair || info_hi->pair)) { 623d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee match = (info_lo->pair == info_hi->pair); 624d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee match &= ((info_lo->reg == info_hi->partner) && 625d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee (info_hi->reg == info_lo->partner)); 626d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 627d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (match) { 628d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // Can reuse - update the register usage info 62900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee loc.reg = RegStorage(RegStorage::k64BitPair, info_lo->reg, info_hi->reg); 630d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee loc.location = kLocPhysReg; 63100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee MarkPair(loc.reg.GetReg(), loc.reg.GetHighReg()); 63200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee DCHECK(!IsFpReg(loc.reg.GetReg()) || ((loc.reg.GetReg() & 0x1) == 0)); 633d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee return loc; 634d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 635d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // Can't easily reuse - clobber and free any overlaps 636d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (info_lo) { 637d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee Clobber(info_lo->reg); 638d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee FreeTemp(info_lo->reg); 639d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (info_lo->pair) 640d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee Clobber(info_lo->partner); 641d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 642d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (info_hi) { 643d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee Clobber(info_hi->reg); 644d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee FreeTemp(info_hi->reg); 645d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (info_hi->pair) 646d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee Clobber(info_hi->partner); 647d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 648d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 649d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 650d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee return loc; 651d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee} 652d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 653d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee// TODO: Reunify with common code after 'pair mess' has been fixed 654d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill BuzbeeRegLocation X86Mir2Lir::EvalLocWide(RegLocation loc, int reg_class, bool update) { 655d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK(loc.wide); 656d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee int32_t low_reg; 657d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee int32_t high_reg; 658d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 659d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee loc = UpdateLocWide(loc); 660d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 661d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee /* If it is already in a register, we can assume proper form. Is it the right reg class? */ 662d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (loc.location == kLocPhysReg) { 66300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee DCHECK_EQ(IsFpReg(loc.reg.GetReg()), loc.IsVectorScalar()); 66400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (!RegClassMatches(reg_class, loc.reg.GetReg())) { 665d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee /* It is the wrong register class. Reallocate and copy. */ 66600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (!IsFpReg(loc.reg.GetReg())) { 667d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // We want this in a FP reg, and it is in core registers. 668d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK(reg_class != kCoreReg); 669d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // Allocate this into any FP reg, and mark it with the right size. 670d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee low_reg = AllocTypedTemp(true, reg_class); 67100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee OpVectorRegCopyWide(low_reg, loc.reg.GetReg(), loc.reg.GetHighReg()); 67200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee CopyRegInfo(low_reg, loc.reg.GetReg()); 67300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee Clobber(loc.reg.GetReg()); 67400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee Clobber(loc.reg.GetHighReg()); 67500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee loc.reg.SetReg(low_reg); 67600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee loc.reg.SetHighReg(low_reg); // Play nice with existing code. 677d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee loc.vec_len = kVectorLength8; 678d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } else { 679d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // The value is in a FP register, and we want it in a pair of core registers. 680d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK_EQ(reg_class, kCoreReg); 68100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee DCHECK_EQ(loc.reg.GetReg(), loc.reg.GetHighReg()); 68200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee RegStorage new_regs = AllocTypedTempWide(false, kCoreReg); // Force to core registers. 68300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee low_reg = new_regs.GetReg(); 68400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee high_reg = new_regs.GetHighReg(); 685d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK_NE(low_reg, high_reg); 68600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee OpRegCopyWide(low_reg, high_reg, loc.reg.GetReg(), loc.reg.GetHighReg()); 68700e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee CopyRegInfo(low_reg, loc.reg.GetReg()); 68800e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee CopyRegInfo(high_reg, loc.reg.GetHighReg()); 68900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee Clobber(loc.reg.GetReg()); 69000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee Clobber(loc.reg.GetHighReg()); 69100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee loc.reg = new_regs; 69200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee MarkPair(loc.reg.GetReg(), loc.reg.GetHighReg()); 69300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee DCHECK(!IsFpReg(loc.reg.GetReg()) || ((loc.reg.GetReg() & 0x1) == 0)); 694d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 695d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 696d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee return loc; 697d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 698d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 699d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK_NE(loc.s_reg_low, INVALID_SREG); 700e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell DCHECK_NE(GetSRegHi(loc.s_reg_low), INVALID_SREG); 701d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 70200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee loc.reg = AllocTypedTempWide(loc.fp, reg_class); 703d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 70400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee // FIXME: take advantage of RegStorage notation. 70500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (loc.reg.GetReg() == loc.reg.GetHighReg()) { 70600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee DCHECK(IsFpReg(loc.reg.GetReg())); 707e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell loc.vec_len = kVectorLength8; 708e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell } else { 70900e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee MarkPair(loc.reg.GetReg(), loc.reg.GetHighReg()); 710e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell } 711e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell if (update) { 712e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell loc.location = kLocPhysReg; 71300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee MarkLive(loc.reg.GetReg(), loc.s_reg_low); 71400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (loc.reg.GetReg() != loc.reg.GetHighReg()) { 71500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee MarkLive(loc.reg.GetHighReg(), GetSRegHi(loc.s_reg_low)); 716d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 717d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 718d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee return loc; 719d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee} 720d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 721d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee// TODO: Reunify with common code after 'pair mess' has been fixed 722d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill BuzbeeRegLocation X86Mir2Lir::EvalLoc(RegLocation loc, int reg_class, bool update) { 723d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee int new_reg; 724d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 725d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (loc.wide) 726d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee return EvalLocWide(loc, reg_class, update); 727d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 728d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee loc = UpdateLoc(loc); 729d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 730d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (loc.location == kLocPhysReg) { 73100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (!RegClassMatches(reg_class, loc.reg.GetReg())) { 732d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee /* Wrong register class. Realloc, copy and transfer ownership. */ 733d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee new_reg = AllocTypedTemp(loc.fp, reg_class); 73400e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee OpRegCopy(new_reg, loc.reg.GetReg()); 73500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee CopyRegInfo(new_reg, loc.reg.GetReg()); 73600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee Clobber(loc.reg.GetReg()); 73700e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee loc.reg.SetReg(new_reg); 73800e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (IsFpReg(loc.reg.GetReg()) && reg_class != kCoreReg) 739d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee loc.vec_len = kVectorLength4; 740d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 741d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee return loc; 742d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 743d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 744d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK_NE(loc.s_reg_low, INVALID_SREG); 745d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 74600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee loc.reg = RegStorage(RegStorage::k32BitSolo, AllocTypedTemp(loc.fp, reg_class)); 74700e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (IsFpReg(loc.reg.GetReg()) && reg_class != kCoreReg) 748d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee loc.vec_len = kVectorLength4; 749d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 750d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (update) { 751d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee loc.location = kLocPhysReg; 75200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee MarkLive(loc.reg.GetReg(), loc.s_reg_low); 753d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 754d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee return loc; 755d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee} 756d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 757d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbeeint X86Mir2Lir::AllocTempDouble() { 758d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // We really don't need a pair of registers. 759d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee return AllocTempFloat(); 760d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee} 761d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 762d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee// TODO: Reunify with common code after 'pair mess' has been fixed 763d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbeevoid X86Mir2Lir::ResetDefLocWide(RegLocation rl) { 764d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK(rl.wide); 76500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee RegisterInfo* p_low = IsTemp(rl.reg.GetReg()); 76600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (IsFpReg(rl.reg.GetReg())) { 767d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // We are using only the low register. 768d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (p_low && !(cu_->disable_opt & (1 << kSuppressLoads))) { 769d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee NullifyRange(p_low->def_start, p_low->def_end, p_low->s_reg, rl.s_reg_low); 770d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 77100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee ResetDef(rl.reg.GetReg()); 772d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } else { 77300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee RegisterInfo* p_high = IsTemp(rl.reg.GetHighReg()); 774d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (p_low && !(cu_->disable_opt & (1 << kSuppressLoads))) { 775d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK(p_low->pair); 776d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee NullifyRange(p_low->def_start, p_low->def_end, p_low->s_reg, rl.s_reg_low); 777d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 778d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if (p_high && !(cu_->disable_opt & (1 << kSuppressLoads))) { 779d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee DCHECK(p_high->pair); 780d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 78100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee ResetDef(rl.reg.GetReg()); 78200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee ResetDef(rl.reg.GetHighReg()); 783d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 784d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee} 785d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 786d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbeevoid X86Mir2Lir::GenConstWide(RegLocation rl_dest, int64_t value) { 787d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // Can we do this directly to memory? 788d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee rl_dest = UpdateLocWide(rl_dest); 789d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee if ((rl_dest.location == kLocDalvikFrame) || 790d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee (rl_dest.location == kLocCompilerTemp)) { 791d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee int32_t val_lo = Low32Bits(value); 792d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee int32_t val_hi = High32Bits(value); 793d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee int rBase = TargetReg(kSp); 794d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee int displacement = SRegOffset(rl_dest.s_reg_low); 795d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 796d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee LIR * store = NewLIR3(kX86Mov32MI, rBase, displacement + LOWORD_OFFSET, val_lo); 797d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee AnnotateDalvikRegAccess(store, (displacement + LOWORD_OFFSET) >> 2, 798d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee false /* is_load */, true /* is64bit */); 799d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee store = NewLIR3(kX86Mov32MI, rBase, displacement + HIWORD_OFFSET, val_hi); 800d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee AnnotateDalvikRegAccess(store, (displacement + HIWORD_OFFSET) >> 2, 801d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee false /* is_load */, true /* is64bit */); 802d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee return; 803d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee } 804d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee 805d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee // Just use the standard code to do the generation. 806d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee Mir2Lir::GenConstWide(rl_dest, value); 807d61ba4ba6fcde666adb5d5c81b1c32f0534fb2c8Bill Buzbee} 808e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell 809e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell// TODO: Merge with existing RegLocation dumper in vreg_analysis.cc 810e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendellvoid X86Mir2Lir::DumpRegLocation(RegLocation loc) { 811e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell LOG(INFO) << "location: " << loc.location << ',' 812e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell << (loc.wide ? " w" : " ") 813e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell << (loc.defined ? " D" : " ") 814e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell << (loc.is_const ? " c" : " ") 815e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell << (loc.fp ? " F" : " ") 816e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell << (loc.core ? " C" : " ") 817e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell << (loc.ref ? " r" : " ") 818e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell << (loc.high_word ? " h" : " ") 819e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell << (loc.home ? " H" : " ") 820e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell << " vec_len: " << loc.vec_len 82100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee << ", low: " << static_cast<int>(loc.reg.GetReg()) 82200e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee << ", high: " << static_cast<int>(loc.reg.GetHighReg()) 823e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell << ", s_reg: " << loc.s_reg_low 824e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell << ", orig: " << loc.orig_sreg; 825e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell} 826e02d48fb24747f90fd893e1c3572bb3c500afcedMark Mendell 82767c39c4aefca23cb136157b889c09ee200b3dec6Mark Mendellvoid X86Mir2Lir::Materialize() { 82867c39c4aefca23cb136157b889c09ee200b3dec6Mark Mendell // A good place to put the analysis before starting. 82967c39c4aefca23cb136157b889c09ee200b3dec6Mark Mendell AnalyzeMIR(); 83067c39c4aefca23cb136157b889c09ee200b3dec6Mark Mendell 83167c39c4aefca23cb136157b889c09ee200b3dec6Mark Mendell // Now continue with regular code generation. 83267c39c4aefca23cb136157b889c09ee200b3dec6Mark Mendell Mir2Lir::Materialize(); 83367c39c4aefca23cb136157b889c09ee200b3dec6Mark Mendell} 83467c39c4aefca23cb136157b889c09ee200b3dec6Mark Mendell 83555d0eac918321e0525f6e6491f36a80977e0d416Mark Mendellvoid X86Mir2Lir::LoadMethodAddress(int dex_method_index, InvokeType type, 83655d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell SpecialTargetRegister symbolic_reg) { 83755d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell /* 83855d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell * For x86, just generate a 32 bit move immediate instruction, that will be filled 83955d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell * in at 'link time'. For now, put a unique value based on target to ensure that 84055d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell * code deduplication works. 84155d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell */ 84255d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell const DexFile::MethodId& id = cu_->dex_file->GetMethodId(dex_method_index); 84355d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell uintptr_t ptr = reinterpret_cast<uintptr_t>(&id); 84455d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 84555d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell // Generate the move instruction with the unique pointer and save index and type. 84655d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell LIR *move = RawLIR(current_dalvik_offset_, kX86Mov32RI, TargetReg(symbolic_reg), 84755d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell static_cast<int>(ptr), dex_method_index, type); 84855d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell AppendLIR(move); 84955d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell method_address_insns_.Insert(move); 85055d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell} 85155d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 85255d0eac918321e0525f6e6491f36a80977e0d416Mark Mendellvoid X86Mir2Lir::LoadClassType(uint32_t type_idx, SpecialTargetRegister symbolic_reg) { 85355d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell /* 85455d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell * For x86, just generate a 32 bit move immediate instruction, that will be filled 85555d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell * in at 'link time'. For now, put a unique value based on target to ensure that 85655d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell * code deduplication works. 85755d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell */ 85855d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell const DexFile::TypeId& id = cu_->dex_file->GetTypeId(type_idx); 85955d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell uintptr_t ptr = reinterpret_cast<uintptr_t>(&id); 86055d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 86155d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell // Generate the move instruction with the unique pointer and save index and type. 86255d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell LIR *move = RawLIR(current_dalvik_offset_, kX86Mov32RI, TargetReg(symbolic_reg), 86355d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell static_cast<int>(ptr), type_idx); 86455d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell AppendLIR(move); 86555d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell class_type_address_insns_.Insert(move); 86655d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell} 86755d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 86855d0eac918321e0525f6e6491f36a80977e0d416Mark MendellLIR *X86Mir2Lir::CallWithLinkerFixup(int dex_method_index, InvokeType type) { 86955d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell /* 87055d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell * For x86, just generate a 32 bit call relative instruction, that will be filled 87155d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell * in at 'link time'. For now, put a unique value based on target to ensure that 87255d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell * code deduplication works. 87355d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell */ 87455d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell const DexFile::MethodId& id = cu_->dex_file->GetMethodId(dex_method_index); 87555d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell uintptr_t ptr = reinterpret_cast<uintptr_t>(&id); 87655d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 87755d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell // Generate the call instruction with the unique pointer and save index and type. 87855d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell LIR *call = RawLIR(current_dalvik_offset_, kX86CallI, static_cast<int>(ptr), dex_method_index, 87955d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell type); 88055d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell AppendLIR(call); 88155d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell call_method_insns_.Insert(call); 88255d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell return call; 88355d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell} 88455d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 88555d0eac918321e0525f6e6491f36a80977e0d416Mark Mendellvoid X86Mir2Lir::InstallLiteralPools() { 88655d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell // These are handled differently for x86. 88755d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell DCHECK(code_literal_list_ == nullptr); 88855d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell DCHECK(method_literal_list_ == nullptr); 88955d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell DCHECK(class_literal_list_ == nullptr); 89055d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 89155d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell // Handle the fixups for methods. 89255d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell for (uint32_t i = 0; i < method_address_insns_.Size(); i++) { 89355d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell LIR* p = method_address_insns_.Get(i); 89455d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell DCHECK_EQ(p->opcode, kX86Mov32RI); 89555d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell uint32_t target = p->operands[2]; 89655d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 89755d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell // The offset to patch is the last 4 bytes of the instruction. 89855d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell int patch_offset = p->offset + p->flags.size - 4; 89955d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell cu_->compiler_driver->AddMethodPatch(cu_->dex_file, cu_->class_def_idx, 90055d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell cu_->method_idx, cu_->invoke_type, 90155d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell target, static_cast<InvokeType>(p->operands[3]), 90255d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell patch_offset); 90355d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell } 90455d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 90555d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell // Handle the fixups for class types. 90655d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell for (uint32_t i = 0; i < class_type_address_insns_.Size(); i++) { 90755d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell LIR* p = class_type_address_insns_.Get(i); 90855d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell DCHECK_EQ(p->opcode, kX86Mov32RI); 90955d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell uint32_t target = p->operands[2]; 91055d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 91155d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell // The offset to patch is the last 4 bytes of the instruction. 91255d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell int patch_offset = p->offset + p->flags.size - 4; 91355d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell cu_->compiler_driver->AddClassPatch(cu_->dex_file, cu_->class_def_idx, 91455d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell cu_->method_idx, target, patch_offset); 91555d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell } 91655d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 91755d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell // And now the PC-relative calls to methods. 91855d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell for (uint32_t i = 0; i < call_method_insns_.Size(); i++) { 91955d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell LIR* p = call_method_insns_.Get(i); 92055d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell DCHECK_EQ(p->opcode, kX86CallI); 92155d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell uint32_t target = p->operands[1]; 92255d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 92355d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell // The offset to patch is the last 4 bytes of the instruction. 92455d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell int patch_offset = p->offset + p->flags.size - 4; 92555d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell cu_->compiler_driver->AddRelativeCodePatch(cu_->dex_file, cu_->class_def_idx, 92655d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell cu_->method_idx, cu_->invoke_type, target, 92755d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell static_cast<InvokeType>(p->operands[2]), 92855d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell patch_offset, -4 /* offset */); 92955d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell } 93055d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 93155d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell // And do the normal processing. 93255d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell Mir2Lir::InstallLiteralPools(); 93355d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell} 93455d0eac918321e0525f6e6491f36a80977e0d416Mark Mendell 9354028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell/* 9364028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell * Fast string.index_of(I) & (II). Inline check for simple case of char <= 0xffff, 9374028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell * otherwise bails to standard library code. 9384028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell */ 9394028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendellbool X86Mir2Lir::GenInlinedIndexOf(CallInfo* info, bool zero_based) { 9404028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell ClobberCallerSave(); 9414028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LockCallTemps(); // Using fixed registers 9424028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 9434028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // EAX: 16 bit character being searched. 9444028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // ECX: count: number of words to be searched. 9454028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // EDI: String being searched. 9464028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // EDX: temporary during execution. 9474028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // EBX: temporary during execution. 9484028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 9494028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell RegLocation rl_obj = info->args[0]; 9504028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell RegLocation rl_char = info->args[1]; 9514028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell RegLocation rl_start = info->args[2]; 9524028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 9534028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell uint32_t char_value = 9544028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell rl_char.is_const ? mir_graph_->ConstantValue(rl_char.orig_sreg) : 0; 9554028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 9564028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell if (char_value > 0xFFFF) { 9574028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // We have to punt to the real String.indexOf. 9584028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell return false; 9594028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 9604028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 9614028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Okay, we are commited to inlining this. 9624028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell RegLocation rl_return = GetReturn(false); 9634028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell RegLocation rl_dest = InlineTarget(info); 9644028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 9654028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Is the string non-NULL? 9664028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LoadValueDirectFixed(rl_obj, rDX); 9674028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell GenNullCheck(rl_obj.s_reg_low, rDX, info->opt_flags); 9684028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 9694028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Record that we have inlined & null checked the object. 9704028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell info->opt_flags |= (MIR_INLINED | MIR_IGNORE_NULL_CHECK); 9714028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 9724028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Does the character fit in 16 bits? 9734028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LIR* launch_pad = nullptr; 9744028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell if (rl_char.is_const) { 9754028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // We need the value in EAX. 9764028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LoadConstantNoClobber(rAX, char_value); 9774028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } else { 9784028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Character is not a constant; compare at runtime. 9794028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LoadValueDirectFixed(rl_char, rAX); 9804028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell launch_pad = RawLIR(0, kPseudoIntrinsicRetry, WrapPointer(info)); 9814028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell intrinsic_launchpads_.Insert(launch_pad); 9824028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell OpCmpImmBranch(kCondGt, rAX, 0xFFFF, launch_pad); 9834028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 9844028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 9854028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // From here down, we know that we are looking for a char that fits in 16 bits. 986e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell // Location of reference to data array within the String object. 987e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell int value_offset = mirror::String::ValueOffset().Int32Value(); 988e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell // Location of count within the String object. 989e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell int count_offset = mirror::String::CountOffset().Int32Value(); 990e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell // Starting offset within data array. 991e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell int offset_offset = mirror::String::OffsetOffset().Int32Value(); 992e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell // Start of char data with array_. 993e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell int data_offset = mirror::Array::DataOffset(sizeof(uint16_t)).Int32Value(); 9944028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 9954028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Character is in EAX. 9964028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Object pointer is in EDX. 9974028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 9984028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // We need to preserve EDI, but have no spare registers, so push it on the stack. 9994028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // We have to remember that all stack addresses after this are offset by sizeof(EDI). 10004028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell NewLIR1(kX86Push32R, rDI); 10014028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10024028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Compute the number of words to search in to rCX. 1003e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell LoadWordDisp(rDX, count_offset, rCX); 10044028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LIR *length_compare = nullptr; 10054028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell int start_value = 0; 10064028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell if (zero_based) { 10074028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // We have to handle an empty string. Use special instruction JECXZ. 10084028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell length_compare = NewLIR0(kX86Jecxz8); 10094028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } else { 10104028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // We have to offset by the start index. 10114028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell if (rl_start.is_const) { 10124028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell start_value = mir_graph_->ConstantValue(rl_start.orig_sreg); 10134028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell start_value = std::max(start_value, 0); 10144028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10154028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Is the start > count? 10164028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell length_compare = OpCmpImmBranch(kCondLe, rCX, start_value, nullptr); 10174028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10184028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell if (start_value != 0) { 10194028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell OpRegImm(kOpSub, rCX, start_value); 10204028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 10214028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } else { 10224028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Runtime start index. 10234028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell rl_start = UpdateLoc(rl_start); 10244028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell if (rl_start.location == kLocPhysReg) { 102500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee length_compare = OpCmpBranch(kCondLe, rCX, rl_start.reg.GetReg(), nullptr); 102600e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee OpRegReg(kOpSub, rCX, rl_start.reg.GetReg()); 10274028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } else { 10284028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Compare to memory to avoid a register load. Handle pushed EDI. 10294028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell int displacement = SRegOffset(rl_start.s_reg_low) + sizeof(uint32_t); 10304028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell OpRegMem(kOpCmp, rDX, rX86_SP, displacement); 10314028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell length_compare = NewLIR2(kX86Jcc8, 0, kX86CondLe); 10324028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell OpRegMem(kOpSub, rCX, rX86_SP, displacement); 10334028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 10344028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 10354028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 10364028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell DCHECK(length_compare != nullptr); 10374028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10384028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // ECX now contains the count in words to be searched. 10394028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10404028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Load the address of the string into EBX. 1041e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell // The string starts at VALUE(String) + 2 * OFFSET(String) + DATA_OFFSET. 1042e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell LoadWordDisp(rDX, value_offset, rDI); 1043e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell LoadWordDisp(rDX, offset_offset, rBX); 1044e19c91fdb88ff6fd4e88bc5984772dcfb1e86f80Mark Mendell OpLea(rBX, rDI, rBX, 1, data_offset); 10454028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10464028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Now compute into EDI where the search will start. 10474028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell if (zero_based || rl_start.is_const) { 10484028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell if (start_value == 0) { 10494028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell OpRegCopy(rDI, rBX); 10504028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } else { 10514028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell NewLIR3(kX86Lea32RM, rDI, rBX, 2 * start_value); 10524028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 10534028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } else { 10544028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell if (rl_start.location == kLocPhysReg) { 105500e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee if (rl_start.reg.GetReg() == rDI) { 10564028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // We have a slight problem here. We are already using RDI! 10574028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Grab the value from the stack. 10584028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LoadWordDisp(rX86_SP, 0, rDX); 10594028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell OpLea(rDI, rBX, rDX, 1, 0); 10604028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } else { 106100e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee OpLea(rDI, rBX, rl_start.reg.GetReg(), 1, 0); 10624028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 10634028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } else { 10644028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell OpRegCopy(rDI, rBX); 10654028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Load the start index from stack, remembering that we pushed EDI. 10664028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell int displacement = SRegOffset(rl_start.s_reg_low) + sizeof(uint32_t); 10674028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LoadWordDisp(rX86_SP, displacement, rDX); 10684028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell OpLea(rDI, rBX, rDX, 1, 0); 10694028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 10704028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 10714028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10724028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // EDI now contains the start of the string to be searched. 10734028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // We are all prepared to do the search for the character. 10744028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell NewLIR0(kX86RepneScasw); 10754028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10764028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Did we find a match? 10774028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LIR* failed_branch = OpCondBranch(kCondNe, nullptr); 10784028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10794028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // yes, we matched. Compute the index of the result. 10804028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // index = ((curr_ptr - orig_ptr) / 2) - 1. 10814028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell OpRegReg(kOpSub, rDI, rBX); 10824028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell OpRegImm(kOpAsr, rDI, 1); 108300e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee NewLIR3(kX86Lea32RM, rl_return.reg.GetReg(), rDI, -1); 10844028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LIR *all_done = NewLIR1(kX86Jmp8, 0); 10854028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10864028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Failed to match; return -1. 10874028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LIR *not_found = NewLIR0(kPseudoTargetLabel); 10884028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell length_compare->target = not_found; 10894028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell failed_branch->target = not_found; 109000e1ec6581b5b7b46ca4c314c2854e9caa647dd2Bill Buzbee LoadConstantNoClobber(rl_return.reg.GetReg(), -1); 10914028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10924028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // And join up at the end. 10934028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell all_done->target = NewLIR0(kPseudoTargetLabel); 10944028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Restore EDI from the stack. 10954028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell NewLIR1(kX86Pop32R, rDI); 10964028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 10974028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell // Out of line code returns here. 10984028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell if (launch_pad != nullptr) { 10994028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell LIR *return_point = NewLIR0(kPseudoTargetLabel); 11004028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell launch_pad->operands[2] = WrapPointer(return_point); 11014028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell } 11024028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 11034028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell StoreValue(rl_dest, rl_return); 11044028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell return true; 11054028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell} 11064028a6c83a339036864999fdfd2855b012a9f1a7Mark Mendell 1107ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell/* 1108ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell * @brief Enter a 32 bit quantity into the FDE buffer 1109ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell * @param buf FDE buffer. 1110ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell * @param data Data value. 1111ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell */ 1112ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendellstatic void PushWord(std::vector<uint8_t>&buf, int data) { 1113ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back(data & 0xff); 1114ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back((data >> 8) & 0xff); 1115ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back((data >> 16) & 0xff); 1116ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back((data >> 24) & 0xff); 1117ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell} 1118ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1119ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell/* 1120ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell * @brief Enter an 'advance LOC' into the FDE buffer 1121ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell * @param buf FDE buffer. 1122ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell * @param increment Amount by which to increase the current location. 1123ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell */ 1124ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendellstatic void AdvanceLoc(std::vector<uint8_t>&buf, uint32_t increment) { 1125ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell if (increment < 64) { 1126ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Encoding in opcode. 1127ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back(0x1 << 6 | increment); 1128ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell } else if (increment < 256) { 1129ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Single byte delta. 1130ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back(0x02); 1131ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back(increment); 1132ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell } else if (increment < 256 * 256) { 1133ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Two byte delta. 1134ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back(0x03); 1135ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back(increment & 0xff); 1136ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back((increment >> 8) & 0xff); 1137ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell } else { 1138ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Four byte delta. 1139ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back(0x04); 1140ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell PushWord(buf, increment); 1141ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell } 1142ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell} 1143ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1144ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1145ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendellstd::vector<uint8_t>* X86CFIInitialization() { 1146ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell return X86Mir2Lir::ReturnCommonCallFrameInformation(); 1147ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell} 1148ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1149ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendellstd::vector<uint8_t>* X86Mir2Lir::ReturnCommonCallFrameInformation() { 1150ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell std::vector<uint8_t>*cfi_info = new std::vector<uint8_t>; 1151ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1152ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Length of the CIE (except for this field). 1153ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell PushWord(*cfi_info, 16); 1154ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1155ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // CIE id. 1156ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell PushWord(*cfi_info, 0xFFFFFFFFU); 1157ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1158ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Version: 3. 1159ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x03); 1160ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1161ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Augmentation: empty string. 1162ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x0); 1163ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1164ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Code alignment: 1. 1165ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x01); 1166ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1167ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Data alignment: -4. 1168ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x7C); 1169ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1170ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Return address register (R8). 1171ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x08); 1172ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1173ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Initial return PC is 4(ESP): DW_CFA_def_cfa R4 4. 1174ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x0C); 1175ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x04); 1176ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x04); 1177ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1178ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Return address location: 0(SP): DW_CFA_offset R8 1 (* -4);. 1179ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x2 << 6 | 0x08); 1180ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x01); 1181ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1182ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // And 2 Noops to align to 4 byte boundary. 1183ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x0); 1184ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x0); 1185ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1186ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell DCHECK_EQ(cfi_info->size() & 3, 0U); 1187ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell return cfi_info; 1188ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell} 1189ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1190ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendellstatic void EncodeUnsignedLeb128(std::vector<uint8_t>& buf, uint32_t value) { 1191ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell uint8_t buffer[12]; 1192ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell uint8_t *ptr = EncodeUnsignedLeb128(buffer, value); 1193ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell for (uint8_t *p = buffer; p < ptr; p++) { 1194ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell buf.push_back(*p); 1195ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell } 1196ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell} 1197ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1198ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendellstd::vector<uint8_t>* X86Mir2Lir::ReturnCallFrameInformation() { 1199ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell std::vector<uint8_t>*cfi_info = new std::vector<uint8_t>; 1200ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1201ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Generate the FDE for the method. 1202ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell DCHECK_NE(data_offset_, 0U); 1203ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1204ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Length (will be filled in later in this routine). 1205ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell PushWord(*cfi_info, 0); 1206ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1207ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // CIE_pointer (can be filled in by linker); might be left at 0 if there is only 1208ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // one CIE for the whole debug_frame section. 1209ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell PushWord(*cfi_info, 0); 1210ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1211ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // 'initial_location' (filled in by linker). 1212ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell PushWord(*cfi_info, 0); 1213ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1214ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // 'address_range' (number of bytes in the method). 1215ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell PushWord(*cfi_info, data_offset_); 1216ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1217ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // The instructions in the FDE. 1218ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell if (stack_decrement_ != nullptr) { 1219ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Advance LOC to just past the stack decrement. 1220ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell uint32_t pc = NEXT_LIR(stack_decrement_)->offset; 1221ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell AdvanceLoc(*cfi_info, pc); 1222ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1223ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Now update the offset to the call frame: DW_CFA_def_cfa_offset frame_size. 1224ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x0e); 1225ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell EncodeUnsignedLeb128(*cfi_info, frame_size_); 1226ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1227ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // We continue with that stack until the epilogue. 1228ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell if (stack_increment_ != nullptr) { 1229ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell uint32_t new_pc = NEXT_LIR(stack_increment_)->offset; 1230ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell AdvanceLoc(*cfi_info, new_pc - pc); 1231ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1232ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // We probably have code snippets after the epilogue, so save the 1233ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // current state: DW_CFA_remember_state. 1234ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x0a); 1235ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1236ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // We have now popped the stack: DW_CFA_def_cfa_offset 4. There is only the return 1237ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // PC on the stack now. 1238ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x0e); 1239ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell EncodeUnsignedLeb128(*cfi_info, 4); 1240ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1241ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Everything after that is the same as before the epilogue. 1242ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Stack bump was followed by RET instruction. 1243ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell LIR *post_ret_insn = NEXT_LIR(NEXT_LIR(stack_increment_)); 1244ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell if (post_ret_insn != nullptr) { 1245ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell pc = new_pc; 1246ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell new_pc = post_ret_insn->offset; 1247ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell AdvanceLoc(*cfi_info, new_pc - pc); 1248ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Restore the state: DW_CFA_restore_state. 1249ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0x0b); 1250ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell } 1251ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell } 1252ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell } 1253ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1254ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Padding to a multiple of 4 1255ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell while ((cfi_info->size() & 3) != 0) { 1256ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // DW_CFA_nop is encoded as 0. 1257ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell cfi_info->push_back(0); 1258ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell } 1259ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 1260ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell // Set the length of the FDE inside the generated bytes. 1261ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell uint32_t length = cfi_info->size() - 4; 1262ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell (*cfi_info)[0] = length; 1263ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell (*cfi_info)[1] = length >> 8; 1264ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell (*cfi_info)[2] = length >> 16; 1265ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell (*cfi_info)[3] = length >> 24; 1266ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell return cfi_info; 1267ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell} 1268ae9fd93c39a341e2dffe15c61cc7d9e841fa92c4Mark Mendell 12697934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom} // namespace art 1270