codegen_util.cc revision bd663de599b16229085759366c56e2ed5a1dc7ec
1e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee/* 2e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * Copyright (C) 2011 The Android Open Source Project 3e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * 4e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * Licensed under the Apache License, Version 2.0 (the "License"); 5e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * you may not use this file except in compliance with the License. 6e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * You may obtain a copy of the License at 7e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * 8e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * http://www.apache.org/licenses/LICENSE-2.0 9e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * 10e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * Unless required by applicable law or agreed to in writing, software 11e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * distributed under the License is distributed on an "AS IS" BASIS, 12e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * See the License for the specific language governing permissions and 14e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * limitations under the License. 15e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee */ 16e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 177940e44f4517de5e2634a7e07d58d0fb26160513Brian Carlstrom#include "dex/compiler_internals.h" 184f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers#include "dex_file-inl.h" 190c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers#include "gc_map.h" 2096faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers#include "mapping_table.h" 218d3a117b374352a1853fae9b7306afeaaa9e3b91Ian Rogers#include "mir_to_lir-inl.h" 220c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers#include "verifier/dex_gc_map.h" 230c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers#include "verifier/method_verifier.h" 240c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 25e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbeenamespace art { 26e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 272ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrombool Mir2Lir::IsInexpensiveConstant(RegLocation rl_src) { 284ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee bool res = false; 294ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src.is_const) { 304ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src.wide) { 314ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src.fp) { 321fd3346740dfb7f47be9922312b68a4227fada96buzbee res = InexpensiveConstantDouble(mir_graph_->ConstantValueWide(rl_src)); 334ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 341fd3346740dfb7f47be9922312b68a4227fada96buzbee res = InexpensiveConstantLong(mir_graph_->ConstantValueWide(rl_src)); 354ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 364ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 374ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (rl_src.fp) { 381fd3346740dfb7f47be9922312b68a4227fada96buzbee res = InexpensiveConstantFloat(mir_graph_->ConstantValue(rl_src)); 394ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } else { 401fd3346740dfb7f47be9922312b68a4227fada96buzbee res = InexpensiveConstantInt(mir_graph_->ConstantValue(rl_src)); 414ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 424ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 434ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 444ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return res; 454ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 464ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 472ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::MarkSafepointPC(LIR* inst) { 4802031b185b4653e6c72e21f7a51238b903f6d638buzbee inst->def_mask = ENCODE_ALL; 491fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* safepoint_pc = NewLIR0(kPseudoSafepointPC); 5002031b185b4653e6c72e21f7a51238b903f6d638buzbee DCHECK_EQ(safepoint_pc->def_mask, ENCODE_ALL); 5102031b185b4653e6c72e21f7a51238b903f6d638buzbee} 5202031b185b4653e6c72e21f7a51238b903f6d638buzbee 539b297bfc588c7d38efd12a6f38cd2710fc513ee3Ian Rogersbool Mir2Lir::FastInstance(uint32_t field_idx, bool is_put, int* field_offset, bool* is_volatile) { 541fd3346740dfb7f47be9922312b68a4227fada96buzbee return cu_->compiler_driver->ComputeInstanceFieldInfo( 559b297bfc588c7d38efd12a6f38cd2710fc513ee3Ian Rogers field_idx, mir_graph_->GetCurrentDexCompilationUnit(), is_put, field_offset, is_volatile); 5602031b185b4653e6c72e21f7a51238b903f6d638buzbee} 5702031b185b4653e6c72e21f7a51238b903f6d638buzbee 58252254b130067cd7a5071865e793966871ae0246buzbee/* Remove a LIR from the list. */ 59252254b130067cd7a5071865e793966871ae0246buzbeevoid Mir2Lir::UnlinkLIR(LIR* lir) { 60252254b130067cd7a5071865e793966871ae0246buzbee if (UNLIKELY(lir == first_lir_insn_)) { 61252254b130067cd7a5071865e793966871ae0246buzbee first_lir_insn_ = lir->next; 62252254b130067cd7a5071865e793966871ae0246buzbee if (lir->next != NULL) { 63252254b130067cd7a5071865e793966871ae0246buzbee lir->next->prev = NULL; 64252254b130067cd7a5071865e793966871ae0246buzbee } else { 65252254b130067cd7a5071865e793966871ae0246buzbee DCHECK(lir->next == NULL); 66252254b130067cd7a5071865e793966871ae0246buzbee DCHECK(lir == last_lir_insn_); 67252254b130067cd7a5071865e793966871ae0246buzbee last_lir_insn_ = NULL; 68252254b130067cd7a5071865e793966871ae0246buzbee } 69252254b130067cd7a5071865e793966871ae0246buzbee } else if (lir == last_lir_insn_) { 70252254b130067cd7a5071865e793966871ae0246buzbee last_lir_insn_ = lir->prev; 71252254b130067cd7a5071865e793966871ae0246buzbee lir->prev->next = NULL; 72252254b130067cd7a5071865e793966871ae0246buzbee } else if ((lir->prev != NULL) && (lir->next != NULL)) { 73252254b130067cd7a5071865e793966871ae0246buzbee lir->prev->next = lir->next; 74252254b130067cd7a5071865e793966871ae0246buzbee lir->next->prev = lir->prev; 75252254b130067cd7a5071865e793966871ae0246buzbee } 76252254b130067cd7a5071865e793966871ae0246buzbee} 77252254b130067cd7a5071865e793966871ae0246buzbee 78cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee/* Convert an instruction to a NOP */ 79df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstromvoid Mir2Lir::NopLIR(LIR* lir) { 80fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee lir->flags.is_nop = true; 81252254b130067cd7a5071865e793966871ae0246buzbee if (!cu_->verbose) { 82252254b130067cd7a5071865e793966871ae0246buzbee UnlinkLIR(lir); 83252254b130067cd7a5071865e793966871ae0246buzbee } 84cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee} 85cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee 862ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::SetMemRefType(LIR* lir, bool is_load, int mem_type) { 87fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee uint64_t *mask_ptr; 88f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom uint64_t mask = ENCODE_MEM; 891fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK(GetTargetInstFlags(lir->opcode) & (IS_LOAD | IS_STORE)); 90fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (is_load) { 91fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mask_ptr = &lir->use_mask; 92a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 93fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee mask_ptr = &lir->def_mask; 94a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 95a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* Clear out the memref flags */ 96fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee *mask_ptr &= ~mask; 97a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* ..and then add back the one we need */ 98fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee switch (mem_type) { 99a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kLiteral: 100fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee DCHECK(is_load); 101fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee *mask_ptr |= ENCODE_LITERAL; 102a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 103a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kDalvikReg: 104fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee *mask_ptr |= ENCODE_DALVIK_REG; 105a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 106a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kHeapRef: 107fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee *mask_ptr |= ENCODE_HEAP_REF; 108a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 109a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kMustNotAlias: 110a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* Currently only loads can be marked as kMustNotAlias */ 1111fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK(!(GetTargetInstFlags(lir->opcode) & IS_STORE)); 112fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee *mask_ptr |= ENCODE_MUST_NOT_ALIAS; 113a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 114a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee default: 115fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(FATAL) << "Oat: invalid memref kind - " << mem_type; 116a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 11731a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 11831a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 11931a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee/* 120b5d09b2f87202bc132ac3991d4b6d71f4f6d9264Ian Rogers * Mark load/store instructions that access Dalvik registers through the stack. 12131a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee */ 1221fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid Mir2Lir::AnnotateDalvikRegAccess(LIR* lir, int reg_id, bool is_load, 1232ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom bool is64bit) { 1241fd3346740dfb7f47be9922312b68a4227fada96buzbee SetMemRefType(lir, is_load, kDalvikReg); 12531a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 126a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* 127fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee * Store the Dalvik register id in alias_info. Mark the MSB if it is a 64-bit 128a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * access. 129a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee */ 130fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee lir->alias_info = ENCODE_ALIAS_INFO(reg_id, is64bit); 13131a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 13231a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 13331a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee/* 1345de3494e4297c0d480409da3fecee39173f1d4e1buzbee * Debugging macros 1355de3494e4297c0d480409da3fecee39173f1d4e1buzbee */ 1365de3494e4297c0d480409da3fecee39173f1d4e1buzbee#define DUMP_RESOURCE_MASK(X) 1375de3494e4297c0d480409da3fecee39173f1d4e1buzbee 1385de3494e4297c0d480409da3fecee39173f1d4e1buzbee/* Pretty-print a LIR instruction */ 1392ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::DumpLIRInsn(LIR* lir, unsigned char* base_addr) { 140a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee int offset = lir->offset; 141a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee int dest = lir->operands[0]; 1421fd3346740dfb7f47be9922312b68a4227fada96buzbee const bool dump_nop = (cu_->enable_debug & (1 << kDebugShowNops)); 143a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee 144a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* Handle pseudo-ops individually, and all regular insns as a group */ 145a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee switch (lir->opcode) { 146a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoMethodEntry: 147a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << "-------- method entry " 1481fd3346740dfb7f47be9922312b68a4227fada96buzbee << PrettyMethod(cu_->method_idx, *cu_->dex_file); 149a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 150a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoMethodExit: 151a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << "-------- Method_Exit"; 152a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 153a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoBarrier: 154a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << "-------- BARRIER"; 155a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 156a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoEntryBlock: 157a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << "-------- entry offset: 0x" << std::hex << dest; 158a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 159a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoDalvikByteCodeBoundary: 1604ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee if (lir->operands[0] == 0) { 1614ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee lir->operands[0] = reinterpret_cast<uintptr_t>("No instruction string"); 1624ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 163a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << "-------- dalvik offset: 0x" << std::hex 164fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee << lir->dalvik_offset << " @ " << reinterpret_cast<char*>(lir->operands[0]); 165a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 166a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoExitBlock: 167a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << "-------- exit offset: 0x" << std::hex << dest; 168a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 169a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoPseudoAlign4: 170fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(INFO) << reinterpret_cast<uintptr_t>(base_addr) + offset << " (0x" << std::hex 171a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee << offset << "): .align4"; 172a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 173a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoEHBlockLabel: 174a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << "Exception_Handling:"; 175a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 176a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoTargetLabel: 177a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoNormalBlockLabel: 178cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(INFO) << "L" << reinterpret_cast<void*>(lir) << ":"; 179a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 180a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoThrowTarget: 181cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(INFO) << "LT" << reinterpret_cast<void*>(lir) << ":"; 182a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 183a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoIntrinsicRetry: 184cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(INFO) << "IR" << reinterpret_cast<void*>(lir) << ":"; 185a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 186a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoSuspendTarget: 187cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(INFO) << "LS" << reinterpret_cast<void*>(lir) << ":"; 188a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 1898320f3867c02bae9bef6cdab267820cb7b412781buzbee case kPseudoSafepointPC: 190fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(INFO) << "LsafepointPC_0x" << std::hex << lir->offset << "_" << lir->dalvik_offset << ":"; 1918320f3867c02bae9bef6cdab267820cb7b412781buzbee break; 192a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee case kPseudoExportedPC: 193fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(INFO) << "LexportedPC_0x" << std::hex << lir->offset << "_" << lir->dalvik_offset << ":"; 194a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee break; 195a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee case kPseudoCaseLabel: 196cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee LOG(INFO) << "LC" << reinterpret_cast<void*>(lir) << ": Case target 0x" 197a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee << std::hex << lir->operands[0] << "|" << std::dec << 198a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee lir->operands[0]; 199a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 200a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee default: 201fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (lir->flags.is_nop && !dump_nop) { 202a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 203a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 2041fd3346740dfb7f47be9922312b68a4227fada96buzbee std::string op_name(BuildInsnString(GetTargetInstName(lir->opcode), 20502031b185b4653e6c72e21f7a51238b903f6d638buzbee lir, base_addr)); 2061fd3346740dfb7f47be9922312b68a4227fada96buzbee std::string op_operands(BuildInsnString(GetTargetInstFmt(lir->opcode), 20702031b185b4653e6c72e21f7a51238b903f6d638buzbee lir, base_addr)); 208a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << StringPrintf("%05x: %-9s%s%s", 209fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee reinterpret_cast<unsigned int>(base_addr + offset), 210a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee op_name.c_str(), op_operands.c_str(), 211fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee lir->flags.is_nop ? "(nop)" : ""); 212a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 213a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 214a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 215a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee 216fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (lir->use_mask && (!lir->flags.is_nop || dump_nop)) { 2172d88862f0752a7a0e65145b088f49dabd49d4284Brian Carlstrom DUMP_RESOURCE_MASK(DumpResourceMask(lir, lir->use_mask, "use")); 218a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 219fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (lir->def_mask && (!lir->flags.is_nop || dump_nop)) { 2202d88862f0752a7a0e65145b088f49dabd49d4284Brian Carlstrom DUMP_RESOURCE_MASK(DumpResourceMask(lir, lir->def_mask, "def")); 221a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 2225de3494e4297c0d480409da3fecee39173f1d4e1buzbee} 2235de3494e4297c0d480409da3fecee39173f1d4e1buzbee 2242ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::DumpPromotionMap() { 2251fd3346740dfb7f47be9922312b68a4227fada96buzbee int num_regs = cu_->num_dalvik_registers + cu_->num_compiler_temps + 1; 226fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee for (int i = 0; i < num_regs; i++) { 2271fd3346740dfb7f47be9922312b68a4227fada96buzbee PromotionMap v_reg_map = promotion_map_[i]; 228a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee std::string buf; 229fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (v_reg_map.fp_location == kLocPhysReg) { 2301fd3346740dfb7f47be9922312b68a4227fada96buzbee StringAppendF(&buf, " : s%d", v_reg_map.FpReg & FpRegMask()); 231a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 2329c044ce5f76e9bfa17c4c1979e9f8c99ae100695buzbee 233a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee std::string buf3; 2341fd3346740dfb7f47be9922312b68a4227fada96buzbee if (i < cu_->num_dalvik_registers) { 235a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee StringAppendF(&buf3, "%02d", i); 2361fd3346740dfb7f47be9922312b68a4227fada96buzbee } else if (i == mir_graph_->GetMethodSReg()) { 237a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee buf3 = "Method*"; 238a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 2391fd3346740dfb7f47be9922312b68a4227fada96buzbee StringAppendF(&buf3, "ct%d", i - cu_->num_dalvik_registers); 2405de3494e4297c0d480409da3fecee39173f1d4e1buzbee } 241a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee 242a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << StringPrintf("V[%s] -> %s%d%s", buf3.c_str(), 243fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee v_reg_map.core_location == kLocPhysReg ? 244fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee "r" : "SP+", v_reg_map.core_location == kLocPhysReg ? 2451fd3346740dfb7f47be9922312b68a4227fada96buzbee v_reg_map.core_reg : SRegOffset(i), 246a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee buf.c_str()); 247a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 2485de3494e4297c0d480409da3fecee39173f1d4e1buzbee} 2495de3494e4297c0d480409da3fecee39173f1d4e1buzbee 250a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee/* Dump a mapping table */ 2511fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid Mir2Lir::DumpMappingTable(const char* table_name, const std::string& descriptor, 2521fd3346740dfb7f47be9922312b68a4227fada96buzbee const std::string& name, const std::string& signature, 2531fd3346740dfb7f47be9922312b68a4227fada96buzbee const std::vector<uint32_t>& v) { 254a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee if (v.size() > 0) { 255a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee std::string line(StringPrintf("\n %s %s%s_%s_table[%zu] = {", table_name, 256a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee descriptor.c_str(), name.c_str(), signature.c_str(), v.size())); 257a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee std::replace(line.begin(), line.end(), ';', '_'); 258a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee LOG(INFO) << line; 259a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee for (uint32_t i = 0; i < v.size(); i+=2) { 260a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee line = StringPrintf(" {0x%05x, 0x%04x},", v[i], v[i+1]); 261a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee LOG(INFO) << line; 262a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee } 263a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee LOG(INFO) <<" };\n\n"; 264a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee } 265a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee} 266a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee 2675de3494e4297c0d480409da3fecee39173f1d4e1buzbee/* Dump instructions and constant pool contents */ 2682ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::CodegenDump() { 269a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << "Dumping LIR insns for " 2701fd3346740dfb7f47be9922312b68a4227fada96buzbee << PrettyMethod(cu_->method_idx, *cu_->dex_file); 271fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LIR* lir_insn; 2721fd3346740dfb7f47be9922312b68a4227fada96buzbee int insns_size = cu_->code_item->insns_size_in_code_units_; 2731fd3346740dfb7f47be9922312b68a4227fada96buzbee 2741fd3346740dfb7f47be9922312b68a4227fada96buzbee LOG(INFO) << "Regs (excluding ins) : " << cu_->num_regs; 2751fd3346740dfb7f47be9922312b68a4227fada96buzbee LOG(INFO) << "Ins : " << cu_->num_ins; 2761fd3346740dfb7f47be9922312b68a4227fada96buzbee LOG(INFO) << "Outs : " << cu_->num_outs; 2771fd3346740dfb7f47be9922312b68a4227fada96buzbee LOG(INFO) << "CoreSpills : " << num_core_spills_; 2781fd3346740dfb7f47be9922312b68a4227fada96buzbee LOG(INFO) << "FPSpills : " << num_fp_spills_; 2791fd3346740dfb7f47be9922312b68a4227fada96buzbee LOG(INFO) << "CompilerTemps : " << cu_->num_compiler_temps; 2801fd3346740dfb7f47be9922312b68a4227fada96buzbee LOG(INFO) << "Frame size : " << frame_size_; 2811fd3346740dfb7f47be9922312b68a4227fada96buzbee LOG(INFO) << "code size is " << total_size_ << 282fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee " bytes, Dalvik size is " << insns_size * 2; 283a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << "expansion factor: " 2841fd3346740dfb7f47be9922312b68a4227fada96buzbee << static_cast<float>(total_size_) / static_cast<float>(insns_size * 2); 2851fd3346740dfb7f47be9922312b68a4227fada96buzbee DumpPromotionMap(); 2861fd3346740dfb7f47be9922312b68a4227fada96buzbee for (lir_insn = first_lir_insn_; lir_insn != NULL; lir_insn = lir_insn->next) { 2871fd3346740dfb7f47be9922312b68a4227fada96buzbee DumpLIRInsn(lir_insn, 0); 288a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 2891fd3346740dfb7f47be9922312b68a4227fada96buzbee for (lir_insn = literal_list_; lir_insn != NULL; lir_insn = lir_insn->next) { 290fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(INFO) << StringPrintf("%x (%04x): .word (%#x)", lir_insn->offset, lir_insn->offset, 291fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee lir_insn->operands[0]); 292a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 293a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee 294a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee const DexFile::MethodId& method_id = 2951fd3346740dfb7f47be9922312b68a4227fada96buzbee cu_->dex_file->GetMethodId(cu_->method_idx); 2961fd3346740dfb7f47be9922312b68a4227fada96buzbee std::string signature(cu_->dex_file->GetMethodSignature(method_id)); 2971fd3346740dfb7f47be9922312b68a4227fada96buzbee std::string name(cu_->dex_file->GetMethodName(method_id)); 2981fd3346740dfb7f47be9922312b68a4227fada96buzbee std::string descriptor(cu_->dex_file->GetMethodDeclaringClassDescriptor(method_id)); 299a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee 300a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee // Dump mapping tables 3011fd3346740dfb7f47be9922312b68a4227fada96buzbee DumpMappingTable("PC2Dex_MappingTable", descriptor, name, signature, pc2dex_mapping_table_); 3021fd3346740dfb7f47be9922312b68a4227fada96buzbee DumpMappingTable("Dex2PC_MappingTable", descriptor, name, signature, dex2pc_mapping_table_); 3035de3494e4297c0d480409da3fecee39173f1d4e1buzbee} 3045de3494e4297c0d480409da3fecee39173f1d4e1buzbee 30531a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee/* 30631a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee * Search the existing constants in the literal pool for an exact or close match 30731a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee * within specified delta (greater or equal to 0). 30831a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee */ 3092ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* Mir2Lir::ScanLiteralPool(LIR* data_target, int value, unsigned int delta) { 310fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee while (data_target) { 311fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if ((static_cast<unsigned>(value - data_target->operands[0])) <= delta) 312fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee return data_target; 313fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee data_target = data_target->next; 314a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 315a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return NULL; 31631a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 31731a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 31831a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee/* Search the existing constants in the literal pool for an exact wide match */ 3192ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* Mir2Lir::ScanLiteralPoolWide(LIR* data_target, int val_lo, int val_hi) { 320fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee bool lo_match = false; 321fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LIR* lo_target = NULL; 322fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee while (data_target) { 323fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (lo_match && (data_target->operands[0] == val_hi)) { 3244ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee // Record high word in case we need to expand this later. 3254ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee lo_target->operands[1] = val_hi; 326fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee return lo_target; 32731a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee } 328fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee lo_match = false; 329fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (data_target->operands[0] == val_lo) { 330fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee lo_match = true; 331fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee lo_target = data_target; 332a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 333fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee data_target = data_target->next; 334a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 335a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return NULL; 33631a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 33731a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 33831a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee/* 33931a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee * The following are building blocks to insert constants into the pool or 34031a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee * instruction streams. 34131a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee */ 34231a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 3434ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee/* Add a 32-bit constant to the constant pool */ 3442ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* Mir2Lir::AddWordData(LIR* *constant_list_p, int value) { 345a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* Add the constant to the literal pool */ 346fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (constant_list_p) { 347f6c4b3ba3825de1dbb3e747a68b809c6cc8eb4dbMathieu Chartier LIR* new_value = static_cast<LIR*>(arena_->Alloc(sizeof(LIR), ArenaAllocator::kAllocData)); 348fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee new_value->operands[0] = value; 349fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee new_value->next = *constant_list_p; 350fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee *constant_list_p = new_value; 351fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee return new_value; 352a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 353a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return NULL; 35431a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 35531a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 35631a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee/* Add a 64-bit constant to the constant pool or mixed with code */ 3572ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* Mir2Lir::AddWideData(LIR* *constant_list_p, int val_lo, int val_hi) { 3581fd3346740dfb7f47be9922312b68a4227fada96buzbee AddWordData(constant_list_p, val_hi); 3591fd3346740dfb7f47be9922312b68a4227fada96buzbee return AddWordData(constant_list_p, val_lo); 36031a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 36131a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 362aad94383fc41e8f8770f0b2144f766a2ffa772e7buzbeestatic void PushWord(std::vector<uint8_t>&buf, int data) { 363df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom buf.push_back(data & 0xff); 364df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom buf.push_back((data >> 8) & 0xff); 365df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom buf.push_back((data >> 16) & 0xff); 366df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom buf.push_back((data >> 24) & 0xff); 367e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 368e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 369aad94383fc41e8f8770f0b2144f766a2ffa772e7buzbeestatic void AlignBuffer(std::vector<uint8_t>&buf, size_t offset) { 370a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee while (buf.size() < offset) { 371a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee buf.push_back(0); 372a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 373e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 374e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 375e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee/* Write the literal pool to the output stream */ 3762ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::InstallLiteralPools() { 3771fd3346740dfb7f47be9922312b68a4227fada96buzbee AlignBuffer(code_buffer_, data_offset_); 3781fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR* data_lir = literal_list_; 379fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee while (data_lir != NULL) { 3801fd3346740dfb7f47be9922312b68a4227fada96buzbee PushWord(code_buffer_, data_lir->operands[0]); 381fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee data_lir = NEXT_LIR(data_lir); 382a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 383a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee // Push code and method literals, record offsets for the compiler to patch. 3841fd3346740dfb7f47be9922312b68a4227fada96buzbee data_lir = code_literal_list_; 385fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee while (data_lir != NULL) { 386fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee uint32_t target = data_lir->operands[0]; 3871fd3346740dfb7f47be9922312b68a4227fada96buzbee cu_->compiler_driver->AddCodePatch(cu_->dex_file, 3881fd3346740dfb7f47be9922312b68a4227fada96buzbee cu_->method_idx, 3891fd3346740dfb7f47be9922312b68a4227fada96buzbee cu_->invoke_type, 3901212a022fa5f8ef9585d765b1809521812af882cIan Rogers target, 3911212a022fa5f8ef9585d765b1809521812af882cIan Rogers static_cast<InvokeType>(data_lir->operands[1]), 3921fd3346740dfb7f47be9922312b68a4227fada96buzbee code_buffer_.size()); 3931fd3346740dfb7f47be9922312b68a4227fada96buzbee const DexFile::MethodId& id = cu_->dex_file->GetMethodId(target); 394137e88f798857321f4007631fdf052d2830ec2c4Ian Rogers // unique based on target to ensure code deduplication works 395137e88f798857321f4007631fdf052d2830ec2c4Ian Rogers uint32_t unique_patch_value = reinterpret_cast<uint32_t>(&id); 3961fd3346740dfb7f47be9922312b68a4227fada96buzbee PushWord(code_buffer_, unique_patch_value); 397fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee data_lir = NEXT_LIR(data_lir); 398137e88f798857321f4007631fdf052d2830ec2c4Ian Rogers } 3991fd3346740dfb7f47be9922312b68a4227fada96buzbee data_lir = method_literal_list_; 400fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee while (data_lir != NULL) { 401fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee uint32_t target = data_lir->operands[0]; 4021fd3346740dfb7f47be9922312b68a4227fada96buzbee cu_->compiler_driver->AddMethodPatch(cu_->dex_file, 4031fd3346740dfb7f47be9922312b68a4227fada96buzbee cu_->method_idx, 4041fd3346740dfb7f47be9922312b68a4227fada96buzbee cu_->invoke_type, 4051212a022fa5f8ef9585d765b1809521812af882cIan Rogers target, 4061212a022fa5f8ef9585d765b1809521812af882cIan Rogers static_cast<InvokeType>(data_lir->operands[1]), 4071fd3346740dfb7f47be9922312b68a4227fada96buzbee code_buffer_.size()); 4081fd3346740dfb7f47be9922312b68a4227fada96buzbee const DexFile::MethodId& id = cu_->dex_file->GetMethodId(target); 409137e88f798857321f4007631fdf052d2830ec2c4Ian Rogers // unique based on target to ensure code deduplication works 410137e88f798857321f4007631fdf052d2830ec2c4Ian Rogers uint32_t unique_patch_value = reinterpret_cast<uint32_t>(&id); 4111fd3346740dfb7f47be9922312b68a4227fada96buzbee PushWord(code_buffer_, unique_patch_value); 412fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee data_lir = NEXT_LIR(data_lir); 413a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 414e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 415e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 416e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee/* Write the switch tables to the output stream */ 4172ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::InstallSwitchTables() { 418862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee GrowableArray<SwitchTable*>::Iterator iterator(&switch_tables_); 419a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee while (true) { 420862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee Mir2Lir::SwitchTable* tab_rec = iterator.Next(); 421fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (tab_rec == NULL) break; 4221fd3346740dfb7f47be9922312b68a4227fada96buzbee AlignBuffer(code_buffer_, tab_rec->offset); 423a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* 424a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * For Arm, our reference point is the address of the bx 425a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * instruction that does the launch, so we have to subtract 426a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * the auto pc-advance. For other targets the reference point 427a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * is a label, so we can use the offset as-is. 428a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee */ 429fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int bx_offset = INVALID_OFFSET; 4301fd3346740dfb7f47be9922312b68a4227fada96buzbee switch (cu_->instruction_set) { 431b046e16d8b8da318d6055f9308950131f1255e08buzbee case kThumb2: 432fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee bx_offset = tab_rec->anchor->offset + 4; 433b046e16d8b8da318d6055f9308950131f1255e08buzbee break; 434b046e16d8b8da318d6055f9308950131f1255e08buzbee case kX86: 435fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee bx_offset = 0; 436b046e16d8b8da318d6055f9308950131f1255e08buzbee break; 437b046e16d8b8da318d6055f9308950131f1255e08buzbee case kMips: 438fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee bx_offset = tab_rec->anchor->offset; 439b046e16d8b8da318d6055f9308950131f1255e08buzbee break; 4401fd3346740dfb7f47be9922312b68a4227fada96buzbee default: LOG(FATAL) << "Unexpected instruction set: " << cu_->instruction_set; 441b046e16d8b8da318d6055f9308950131f1255e08buzbee } 4421fd3346740dfb7f47be9922312b68a4227fada96buzbee if (cu_->verbose) { 443fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(INFO) << "Switch table for offset 0x" << std::hex << bx_offset; 444a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 445fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (tab_rec->table[0] == Instruction::kSparseSwitchSignature) { 446fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee const int* keys = reinterpret_cast<const int*>(&(tab_rec->table[2])); 447fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee for (int elems = 0; elems < tab_rec->table[1]; elems++) { 448fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int disp = tab_rec->targets[elems]->offset - bx_offset; 4491fd3346740dfb7f47be9922312b68a4227fada96buzbee if (cu_->verbose) { 450a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << " Case[" << elems << "] key: 0x" 451a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee << std::hex << keys[elems] << ", disp: 0x" 452a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee << std::hex << disp; 453e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee } 4541fd3346740dfb7f47be9922312b68a4227fada96buzbee PushWord(code_buffer_, keys[elems]); 4551fd3346740dfb7f47be9922312b68a4227fada96buzbee PushWord(code_buffer_, 456fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee tab_rec->targets[elems]->offset - bx_offset); 457a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 458a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 459fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee DCHECK_EQ(static_cast<int>(tab_rec->table[0]), 460a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee static_cast<int>(Instruction::kPackedSwitchSignature)); 461fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee for (int elems = 0; elems < tab_rec->table[1]; elems++) { 462fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int disp = tab_rec->targets[elems]->offset - bx_offset; 4631fd3346740dfb7f47be9922312b68a4227fada96buzbee if (cu_->verbose) { 464a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << " Case[" << elems << "] disp: 0x" 465a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee << std::hex << disp; 466e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee } 4671fd3346740dfb7f47be9922312b68a4227fada96buzbee PushWord(code_buffer_, tab_rec->targets[elems]->offset - bx_offset); 468a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 469e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee } 470a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 471e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 472e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 473e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee/* Write the fill array dta to the output stream */ 4742ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::InstallFillArrayData() { 475862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee GrowableArray<FillArrayData*>::Iterator iterator(&fill_array_data_); 476a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee while (true) { 477862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee Mir2Lir::FillArrayData *tab_rec = iterator.Next(); 478fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (tab_rec == NULL) break; 4791fd3346740dfb7f47be9922312b68a4227fada96buzbee AlignBuffer(code_buffer_, tab_rec->offset); 480fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee for (int i = 0; i < (tab_rec->size + 1) / 2; i++) { 481df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom code_buffer_.push_back(tab_rec->table[i] & 0xFF); 482df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom code_buffer_.push_back((tab_rec->table[i] >> 8) & 0xFF); 483e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee } 484a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 485e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 486e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 4872ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromstatic int AssignLiteralOffsetCommon(LIR* lir, int offset) { 48802c8cc6d1312a2b55533f02f6369dc7c94672f90Brian Carlstrom for (; lir != NULL; lir = lir->next) { 489a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee lir->offset = offset; 490a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee offset += 4; 491a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 492a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return offset; 493e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 494e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 4956459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee// Make sure we have a code address for every declared catch entry 4962ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrombool Mir2Lir::VerifyCatchEntries() { 4976459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee bool success = true; 4981fd3346740dfb7f47be9922312b68a4227fada96buzbee for (std::set<uint32_t>::const_iterator it = mir_graph_->catches_.begin(); 4991fd3346740dfb7f47be9922312b68a4227fada96buzbee it != mir_graph_->catches_.end(); ++it) { 500fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee uint32_t dex_pc = *it; 5016459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee bool found = false; 5021fd3346740dfb7f47be9922312b68a4227fada96buzbee for (size_t i = 0; i < dex2pc_mapping_table_.size(); i += 2) { 5031fd3346740dfb7f47be9922312b68a4227fada96buzbee if (dex_pc == dex2pc_mapping_table_[i+1]) { 5046459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee found = true; 5056459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee break; 5066459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee } 5076459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee } 5086459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee if (!found) { 509fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(INFO) << "Missing native PC for catch entry @ 0x" << std::hex << dex_pc; 5106459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee success = false; 5116459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee } 5126459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee } 5136459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee // Now, try in the other direction 5141fd3346740dfb7f47be9922312b68a4227fada96buzbee for (size_t i = 0; i < dex2pc_mapping_table_.size(); i += 2) { 5151fd3346740dfb7f47be9922312b68a4227fada96buzbee uint32_t dex_pc = dex2pc_mapping_table_[i+1]; 5161fd3346740dfb7f47be9922312b68a4227fada96buzbee if (mir_graph_->catches_.find(dex_pc) == mir_graph_->catches_.end()) { 517fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(INFO) << "Unexpected catch entry @ dex pc 0x" << std::hex << dex_pc; 5186459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee success = false; 5196459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee } 5206459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee } 5216459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee if (!success) { 5221fd3346740dfb7f47be9922312b68a4227fada96buzbee LOG(INFO) << "Bad dex2pcMapping table in " << PrettyMethod(cu_->method_idx, *cu_->dex_file); 5231fd3346740dfb7f47be9922312b68a4227fada96buzbee LOG(INFO) << "Entries @ decode: " << mir_graph_->catches_.size() << ", Entries in table: " 5241fd3346740dfb7f47be9922312b68a4227fada96buzbee << dex2pc_mapping_table_.size()/2; 5256459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee } 5266459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee return success; 5276459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee} 5286459e7cb35ca83ffc2f266dddeb83673bc07ecd4buzbee 529311ca169f4727d46a55bdc8dfa0059719fa72b65buzbee 5302ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::CreateMappingTables() { 5311fd3346740dfb7f47be9922312b68a4227fada96buzbee for (LIR* tgt_lir = first_lir_insn_; tgt_lir != NULL; tgt_lir = NEXT_LIR(tgt_lir)) { 532fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (!tgt_lir->flags.is_nop && (tgt_lir->opcode == kPseudoSafepointPC)) { 5331fd3346740dfb7f47be9922312b68a4227fada96buzbee pc2dex_mapping_table_.push_back(tgt_lir->offset); 5341fd3346740dfb7f47be9922312b68a4227fada96buzbee pc2dex_mapping_table_.push_back(tgt_lir->dalvik_offset); 535a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee } 536fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (!tgt_lir->flags.is_nop && (tgt_lir->opcode == kPseudoExportedPC)) { 5371fd3346740dfb7f47be9922312b68a4227fada96buzbee dex2pc_mapping_table_.push_back(tgt_lir->offset); 5381fd3346740dfb7f47be9922312b68a4227fada96buzbee dex2pc_mapping_table_.push_back(tgt_lir->dalvik_offset); 539e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee } 540a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 541311ca169f4727d46a55bdc8dfa0059719fa72b65buzbee if (kIsDebugBuild) { 54296faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers CHECK(VerifyCatchEntries()); 54396faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers } 54496faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers CHECK_EQ(pc2dex_mapping_table_.size() & 1, 0U); 54596faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers CHECK_EQ(dex2pc_mapping_table_.size() & 1, 0U); 54696faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers uint32_t total_entries = (pc2dex_mapping_table_.size() + dex2pc_mapping_table_.size()) / 2; 54796faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers uint32_t pc2dex_entries = pc2dex_mapping_table_.size() / 2; 54896faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers encoded_mapping_table_.PushBack(total_entries); 54996faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers encoded_mapping_table_.PushBack(pc2dex_entries); 55096faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers encoded_mapping_table_.InsertBack(pc2dex_mapping_table_.begin(), pc2dex_mapping_table_.end()); 55196faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers encoded_mapping_table_.InsertBack(dex2pc_mapping_table_.begin(), dex2pc_mapping_table_.end()); 55296faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers if (kIsDebugBuild) { 55396faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers // Verify the encoded table holds the expected data. 55496faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers MappingTable table(&encoded_mapping_table_.GetData()[0]); 55596faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers CHECK_EQ(table.TotalSize(), total_entries); 55696faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers CHECK_EQ(table.PcToDexSize(), pc2dex_entries); 55796faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers CHECK_EQ(table.DexToPcSize(), dex2pc_mapping_table_.size() / 2); 55896faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers MappingTable::PcToDexIterator it = table.PcToDexBegin(); 55996faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers for (uint32_t i = 0; i < pc2dex_mapping_table_.size(); ++i, ++it) { 56096faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers CHECK_EQ(pc2dex_mapping_table_.at(i), it.NativePcOffset()); 56196faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers ++i; 56296faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers CHECK_EQ(pc2dex_mapping_table_.at(i), it.DexPc()); 56396faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers } 56496faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers MappingTable::DexToPcIterator it2 = table.DexToPcBegin(); 56596faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers for (uint32_t i = 0; i < dex2pc_mapping_table_.size(); ++i, ++it2) { 56696faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers CHECK_EQ(dex2pc_mapping_table_.at(i), it2.NativePcOffset()); 56796faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers ++i; 56896faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers CHECK_EQ(dex2pc_mapping_table_.at(i), it2.DexPc()); 56996faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers } 570311ca169f4727d46a55bdc8dfa0059719fa72b65buzbee } 571e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 572e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 5730c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogersclass NativePcToReferenceMapBuilder { 5740c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers public: 5750c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers NativePcToReferenceMapBuilder(std::vector<uint8_t>* table, 5760c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t entries, uint32_t max_native_offset, 5770c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t references_width) : entries_(entries), 5780c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers references_width_(references_width), in_use_(entries), 5790c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers table_(table) { 5800c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Compute width in bytes needed to hold max_native_offset. 5810c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers native_offset_width_ = 0; 5820c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers while (max_native_offset != 0) { 5830c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers native_offset_width_++; 5840c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers max_native_offset >>= 8; 5850c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 5860c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Resize table and set up header. 5870c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers table->resize((EntryWidth() * entries) + sizeof(uint32_t)); 588000d724207b4ff32fcbc9744da76d2f594675eedIan Rogers CHECK_LT(native_offset_width_, 1U << 3); 589000d724207b4ff32fcbc9744da76d2f594675eedIan Rogers (*table)[0] = native_offset_width_ & 7; 590000d724207b4ff32fcbc9744da76d2f594675eedIan Rogers CHECK_LT(references_width_, 1U << 13); 591000d724207b4ff32fcbc9744da76d2f594675eedIan Rogers (*table)[0] |= (references_width_ << 3) & 0xFF; 592000d724207b4ff32fcbc9744da76d2f594675eedIan Rogers (*table)[1] = (references_width_ >> 5) & 0xFF; 5930c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers CHECK_LT(entries, 1U << 16); 5940c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers (*table)[2] = entries & 0xFF; 5950c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers (*table)[3] = (entries >> 8) & 0xFF; 5960c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 5970c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 5980c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers void AddEntry(uint32_t native_offset, const uint8_t* references) { 5990c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t table_index = TableIndex(native_offset); 6000c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers while (in_use_[table_index]) { 6010c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers table_index = (table_index + 1) % entries_; 6020c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 6030c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers in_use_[table_index] = true; 6040c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers SetNativeOffset(table_index, native_offset); 6050c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK_EQ(native_offset, GetNativeOffset(table_index)); 6060c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers SetReferences(table_index, references); 6070c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 6080c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 6090c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers private: 6100c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t TableIndex(uint32_t native_offset) { 6110c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers return NativePcOffsetToReferenceMap::Hash(native_offset) % entries_; 6120c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 6130c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 6140c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t GetNativeOffset(size_t table_index) { 6150c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t native_offset = 0; 6160c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t table_offset = (table_index * EntryWidth()) + sizeof(uint32_t); 6170c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t i = 0; i < native_offset_width_; i++) { 6180c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers native_offset |= (*table_)[table_offset + i] << (i * 8); 6190c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 6200c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers return native_offset; 6210c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 6220c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 6230c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers void SetNativeOffset(size_t table_index, uint32_t native_offset) { 6240c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t table_offset = (table_index * EntryWidth()) + sizeof(uint32_t); 6250c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t i = 0; i < native_offset_width_; i++) { 6260c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers (*table_)[table_offset + i] = (native_offset >> (i * 8)) & 0xFF; 6270c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 6280c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 6290c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 6300c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers void SetReferences(size_t table_index, const uint8_t* references) { 6310c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t table_offset = (table_index * EntryWidth()) + sizeof(uint32_t); 6320c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers memcpy(&(*table_)[table_offset + native_offset_width_], references, references_width_); 6330c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 6340c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 6350c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t EntryWidth() const { 6360c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers return native_offset_width_ + references_width_; 6370c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 6380c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 6390c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Number of entries in the table. 6400c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const size_t entries_; 6410c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Number of bytes used to encode the reference bitmap. 6420c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const size_t references_width_; 6430c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Number of bytes used to encode a native offset. 6440c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t native_offset_width_; 6450c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Entries that are in use. 6460c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers std::vector<bool> in_use_; 6470c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // The table we're building. 6480c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers std::vector<uint8_t>* const table_; 6490c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers}; 6500c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 6511fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid Mir2Lir::CreateNativeGcMap() { 6521fd3346740dfb7f47be9922312b68a4227fada96buzbee const std::vector<uint32_t>& mapping_table = pc2dex_mapping_table_; 6530c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t max_native_offset = 0; 6540c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t i = 0; i < mapping_table.size(); i += 2) { 6550c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t native_offset = mapping_table[i + 0]; 6560c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (native_offset > max_native_offset) { 6570c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers max_native_offset = native_offset; 6580c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 6590c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 66051c2467e8771b56e25ae4f17f66522f979f57a7eBrian Carlstrom MethodReference method_ref(cu_->dex_file, cu_->method_idx); 6610c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const std::vector<uint8_t>* gc_map_raw = verifier::MethodVerifier::GetDexGcMap(method_ref); 6620c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers verifier::DexPcToReferenceMap dex_gc_map(&(*gc_map_raw)[4], gc_map_raw->size() - 4); 6630c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Compute native offset to references size. 6641fd3346740dfb7f47be9922312b68a4227fada96buzbee NativePcToReferenceMapBuilder native_gc_map_builder(&native_gc_map_, 6650c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers mapping_table.size() / 2, max_native_offset, 6660c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers dex_gc_map.RegWidth()); 6670c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 6680c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t i = 0; i < mapping_table.size(); i += 2) { 6690c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t native_offset = mapping_table[i + 0]; 6700c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t dex_pc = mapping_table[i + 1]; 6710c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* references = dex_gc_map.FindBitMap(dex_pc, false); 672a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee CHECK(references != NULL) << "Missing ref for dex pc 0x" << std::hex << dex_pc; 673a5b3024aed77a8204d5fb48ba7f763fb8c60fa76Bill Buzbee native_gc_map_builder.AddEntry(native_offset, references); 6740c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 6750c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers} 6760c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 677e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee/* Determine the offset of each literal field */ 6782ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromint Mir2Lir::AssignLiteralOffset(int offset) { 6791fd3346740dfb7f47be9922312b68a4227fada96buzbee offset = AssignLiteralOffsetCommon(literal_list_, offset); 6801fd3346740dfb7f47be9922312b68a4227fada96buzbee offset = AssignLiteralOffsetCommon(code_literal_list_, offset); 6811fd3346740dfb7f47be9922312b68a4227fada96buzbee offset = AssignLiteralOffsetCommon(method_literal_list_, offset); 682a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return offset; 683e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 684e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 6852ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromint Mir2Lir::AssignSwitchTablesOffset(int offset) { 686862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee GrowableArray<SwitchTable*>::Iterator iterator(&switch_tables_); 687a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee while (true) { 688862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee Mir2Lir::SwitchTable *tab_rec = iterator.Next(); 689fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (tab_rec == NULL) break; 690fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee tab_rec->offset = offset; 691fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (tab_rec->table[0] == Instruction::kSparseSwitchSignature) { 692fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee offset += tab_rec->table[1] * (sizeof(int) * 2); 693a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 694fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee DCHECK_EQ(static_cast<int>(tab_rec->table[0]), 695a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee static_cast<int>(Instruction::kPackedSwitchSignature)); 696fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee offset += tab_rec->table[1] * sizeof(int); 697e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee } 698a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 699a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return offset; 700e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 701e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 7022ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromint Mir2Lir::AssignFillArrayDataOffset(int offset) { 703862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee GrowableArray<FillArrayData*>::Iterator iterator(&fill_array_data_); 704a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee while (true) { 705862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee Mir2Lir::FillArrayData *tab_rec = iterator.Next(); 706fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (tab_rec == NULL) break; 707fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee tab_rec->offset = offset; 708fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee offset += tab_rec->size; 709a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee // word align 710a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee offset = (offset + 3) & ~3; 711a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 712a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee return offset; 713e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 714e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 715a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee// LIR offset assignment. 7162ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromint Mir2Lir::AssignInsnOffsets() { 717a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee LIR* lir; 718a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee int offset = 0; 719a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee 7201fd3346740dfb7f47be9922312b68a4227fada96buzbee for (lir = first_lir_insn_; lir != NULL; lir = NEXT_LIR(lir)) { 721a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee lir->offset = offset; 72228c2300d9a85f4e7288fb5d94280332f923b4df3buzbee if (LIKELY(lir->opcode >= 0)) { 723a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee if (!lir->flags.is_nop) { 724a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee offset += lir->flags.size; 725a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee } 72628c2300d9a85f4e7288fb5d94280332f923b4df3buzbee } else if (UNLIKELY(lir->opcode == kPseudoPseudoAlign4)) { 727a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee if (offset & 0x2) { 728a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee offset += 2; 729a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee lir->operands[0] = 1; 730a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee } else { 731a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee lir->operands[0] = 0; 732a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee } 733a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee } 734a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee /* Pseudo opcodes don't consume space */ 735a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee } 736a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee return offset; 737a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee} 738a3a82b219531effb53aef13f48e50db9bf0f9fb5buzbee 739e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee/* 740e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * Walk the compilation unit and assign offsets to instructions 741e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * and literals and compute the total size of the compiled unit. 742e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee */ 7432ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::AssignOffsets() { 7441fd3346740dfb7f47be9922312b68a4227fada96buzbee int offset = AssignInsnOffsets(); 745e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 746a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* Const values have to be word aligned */ 747a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee offset = (offset + 3) & ~3; 748e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 749a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* Set up offsets for literals */ 7501fd3346740dfb7f47be9922312b68a4227fada96buzbee data_offset_ = offset; 751e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 7521fd3346740dfb7f47be9922312b68a4227fada96buzbee offset = AssignLiteralOffset(offset); 753e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 7541fd3346740dfb7f47be9922312b68a4227fada96buzbee offset = AssignSwitchTablesOffset(offset); 755e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 7561fd3346740dfb7f47be9922312b68a4227fada96buzbee offset = AssignFillArrayDataOffset(offset); 757e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 7581fd3346740dfb7f47be9922312b68a4227fada96buzbee total_size_ = offset; 759e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 760e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 761e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee/* 762e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * Go over each instruction in the list and calculate the offset from the top 763e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * before sending them off to the assembler. If out-of-range branch distance is 764e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee * seen rearrange the instructions a bit to correct it. 765e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee */ 7662ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::AssembleLIR() { 7671fd3346740dfb7f47be9922312b68a4227fada96buzbee AssignOffsets(); 768311ca169f4727d46a55bdc8dfa0059719fa72b65buzbee int assembler_retries = 0; 769a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* 770a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * Assemble here. Note that we generate code with optimistic assumptions 771a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * and if found now to work, we'll have to redo the sequence and retry. 772a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee */ 773e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 774a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee while (true) { 7751fd3346740dfb7f47be9922312b68a4227fada96buzbee AssemblerStatus res = AssembleInstructions(0); 776a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee if (res == kSuccess) { 777a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee break; 778a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 779311ca169f4727d46a55bdc8dfa0059719fa72b65buzbee assembler_retries++; 780311ca169f4727d46a55bdc8dfa0059719fa72b65buzbee if (assembler_retries > MAX_ASSEMBLER_RETRIES) { 7811fd3346740dfb7f47be9922312b68a4227fada96buzbee CodegenDump(); 782a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(FATAL) << "Assembler error - too many retries"; 783a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 784a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee // Redo offsets and try again 7851fd3346740dfb7f47be9922312b68a4227fada96buzbee AssignOffsets(); 7861fd3346740dfb7f47be9922312b68a4227fada96buzbee code_buffer_.clear(); 787e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee } 788a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 789e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 790a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee // Install literals 7911fd3346740dfb7f47be9922312b68a4227fada96buzbee InstallLiteralPools(); 792e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 793a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee // Install switch tables 7941fd3346740dfb7f47be9922312b68a4227fada96buzbee InstallSwitchTables(); 795e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 796a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee // Install fill array data 7971fd3346740dfb7f47be9922312b68a4227fada96buzbee InstallFillArrayData(); 798e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 7990c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Create the mapping table and native offset to reference map. 8001fd3346740dfb7f47be9922312b68a4227fada96buzbee CreateMappingTables(); 8010c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers 8021fd3346740dfb7f47be9922312b68a4227fada96buzbee CreateNativeGcMap(); 803e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee} 804e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 80531a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee/* 80631a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee * Insert a kPseudoCaseLabel at the beginning of the Dalvik 80731a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee * offset vaddr. This label will be used to fix up the case 808252254b130067cd7a5071865e793966871ae0246buzbee * branch table during the assembly phase. All resource flags 809252254b130067cd7a5071865e793966871ae0246buzbee * are set to prevent code motion. KeyVal is just there for debugging. 81031a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee */ 8112ce745c06271d5223d57dbf08117b20d5b60694aBrian CarlstromLIR* Mir2Lir::InsertCaseLabel(int vaddr, int keyVal) { 812252254b130067cd7a5071865e793966871ae0246buzbee LIR* boundary_lir = &block_label_list_[mir_graph_->FindBlock(vaddr)->id]; 813f6c4b3ba3825de1dbb3e747a68b809c6cc8eb4dbMathieu Chartier LIR* new_label = static_cast<LIR*>(arena_->Alloc(sizeof(LIR), ArenaAllocator::kAllocLIR)); 814fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee new_label->dalvik_offset = vaddr; 815fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee new_label->opcode = kPseudoCaseLabel; 816fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee new_label->operands[0] = keyVal; 817252254b130067cd7a5071865e793966871ae0246buzbee new_label->def_mask = ENCODE_ALL; 81856c717860df2d71d66fb77aa77f29dd346e559d3buzbee InsertLIRAfter(boundary_lir, new_label); 819fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee return new_label; 82031a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 82131a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 8222ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::MarkPackedCaseLabels(Mir2Lir::SwitchTable *tab_rec) { 823fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee const uint16_t* table = tab_rec->table; 824fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int base_vaddr = tab_rec->vaddr; 825cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee const int *targets = reinterpret_cast<const int*>(&table[4]); 826a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee int entries = table[1]; 827fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int low_key = s4FromSwitchData(&table[2]); 828a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee for (int i = 0; i < entries; i++) { 8291fd3346740dfb7f47be9922312b68a4227fada96buzbee tab_rec->targets[i] = InsertCaseLabel(base_vaddr + targets[i], i + low_key); 830a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 83131a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 83231a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 8332ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::MarkSparseCaseLabels(Mir2Lir::SwitchTable *tab_rec) { 834fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee const uint16_t* table = tab_rec->table; 835fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int base_vaddr = tab_rec->vaddr; 836a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee int entries = table[1]; 837cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee const int* keys = reinterpret_cast<const int*>(&table[2]); 838cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee const int* targets = &keys[entries]; 839a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee for (int i = 0; i < entries; i++) { 8401fd3346740dfb7f47be9922312b68a4227fada96buzbee tab_rec->targets[i] = InsertCaseLabel(base_vaddr + targets[i], keys[i]); 841a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 84231a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 84331a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 8442ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::ProcessSwitchTables() { 845862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee GrowableArray<SwitchTable*>::Iterator iterator(&switch_tables_); 846a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee while (true) { 847862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee Mir2Lir::SwitchTable *tab_rec = iterator.Next(); 848fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (tab_rec == NULL) break; 849fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee if (tab_rec->table[0] == Instruction::kPackedSwitchSignature) { 8501fd3346740dfb7f47be9922312b68a4227fada96buzbee MarkPackedCaseLabels(tab_rec); 851fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee } else if (tab_rec->table[0] == Instruction::kSparseSwitchSignature) { 8521fd3346740dfb7f47be9922312b68a4227fada96buzbee MarkSparseCaseLabels(tab_rec); 853a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } else { 854a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(FATAL) << "Invalid switch table"; 85531a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee } 856a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 85731a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 85831a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 8592ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::DumpSparseSwitchTable(const uint16_t* table) { 860a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* 861a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * Sparse switch data format: 862a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * ushort ident = 0x0200 magic value 863a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * ushort size number of entries in the table; > 0 864a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * int keys[size] keys, sorted low-to-high; 32-bit aligned 865a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * int targets[size] branch targets, relative to switch opcode 866a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * 867a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * Total size is (2+size*4) 16-bit code units. 868a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee */ 869eaf09bc65f9a10d12befcdb239156938c9bceef2buzbee uint16_t ident = table[0]; 870a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee int entries = table[1]; 871cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee const int* keys = reinterpret_cast<const int*>(&table[2]); 872cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee const int* targets = &keys[entries]; 873a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << "Sparse switch table - ident:0x" << std::hex << ident 874a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee << ", entries: " << std::dec << entries; 875a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee for (int i = 0; i < entries; i++) { 876a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << " Key[" << keys[i] << "] -> 0x" << std::hex << targets[i]; 877a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 87831a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 87931a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee 8802ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::DumpPackedSwitchTable(const uint16_t* table) { 881a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee /* 882a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * Packed switch data format: 883a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * ushort ident = 0x0100 magic value 884a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * ushort size number of entries in the table 885a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * int first_key first (and lowest) switch case value 886a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * int targets[size] branch targets, relative to switch opcode 887a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * 888a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee * Total size is (4+size*2) 16-bit code units. 889a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee */ 890eaf09bc65f9a10d12befcdb239156938c9bceef2buzbee uint16_t ident = table[0]; 891cbd6d44c0a94f3d26671b5325aa21bbf1335ffe8buzbee const int* targets = reinterpret_cast<const int*>(&table[4]); 892a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee int entries = table[1]; 893fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee int low_key = s4FromSwitchData(&table[2]); 894a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee LOG(INFO) << "Packed switch table - ident:0x" << std::hex << ident 895fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee << ", entries: " << std::dec << entries << ", low_key: " << low_key; 896a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee for (int i = 0; i < entries; i++) { 897fa57c47f1b72916371a9c2d5c1389219bce655b4buzbee LOG(INFO) << " Key[" << (i + low_key) << "] -> 0x" << std::hex 898a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee << targets[i]; 899a114add0300b95eeaae7465493f39144e07324e8Bill Buzbee } 90031a4a6f5717f645da6b97ccc1e420ae1e1c71ce0buzbee} 901e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 902252254b130067cd7a5071865e793966871ae0246buzbee/* Set up special LIR to mark a Dalvik byte-code instruction start for pretty printing */ 903252254b130067cd7a5071865e793966871ae0246buzbeevoid Mir2Lir::MarkBoundary(int offset, const char* inst_str) { 904252254b130067cd7a5071865e793966871ae0246buzbee NewLIR1(kPseudoDalvikByteCodeBoundary, reinterpret_cast<uintptr_t>(inst_str)); 905d1643e41ef242ae656f667bf3c8b0324635cefd3buzbee} 906e3acd07f28d5625062b599c2817cb5f7a53f54a9buzbee 9072ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrombool Mir2Lir::EvaluateBranch(Instruction::Code opcode, int32_t src1, int32_t src2) { 908e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee bool is_taken; 909e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee switch (opcode) { 910e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_EQ: is_taken = (src1 == src2); break; 911e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_NE: is_taken = (src1 != src2); break; 912e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_LT: is_taken = (src1 < src2); break; 913e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_GE: is_taken = (src1 >= src2); break; 914e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_GT: is_taken = (src1 > src2); break; 915e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_LE: is_taken = (src1 <= src2); break; 916e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_EQZ: is_taken = (src1 == 0); break; 917e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_NEZ: is_taken = (src1 != 0); break; 918e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_LTZ: is_taken = (src1 < 0); break; 919e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_GEZ: is_taken = (src1 >= 0); break; 920e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_GTZ: is_taken = (src1 > 0); break; 921e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee case Instruction::IF_LEZ: is_taken = (src1 <= 0); break; 922e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee default: 923e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee LOG(FATAL) << "Unexpected opcode " << opcode; 924e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee is_taken = false; 925e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee } 926e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee return is_taken; 927e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee} 928e6285f99a53a344efd6f8409ff5f43a3e80190dbbuzbee 9294ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee// Convert relation of src1/src2 to src2/src1 9301fd3346740dfb7f47be9922312b68a4227fada96buzbeeConditionCode Mir2Lir::FlipComparisonOrder(ConditionCode before) { 9314ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee ConditionCode res; 9324ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee switch (before) { 9334ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondEq: res = kCondEq; break; 9344ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondNe: res = kCondNe; break; 9354ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondLt: res = kCondGt; break; 9364ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondGt: res = kCondLt; break; 9374ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondLe: res = kCondGe; break; 9384ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee case kCondGe: res = kCondLe; break; 9394ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee default: 9404ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee res = static_cast<ConditionCode>(0); 9414ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee LOG(FATAL) << "Unexpected ccode " << before; 9424ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee } 9434ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee return res; 9444ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee} 9454ef3e45d7c6ec3c482a1a48f4df470811aa3cf0abuzbee 946862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee// TODO: move to mir_to_lir.cc 947862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbeeMir2Lir::Mir2Lir(CompilationUnit* cu, MIRGraph* mir_graph, ArenaAllocator* arena) 9486282dc12440a2072dc06a616160027ff21bd895eIan Rogers : Backend(arena), 9496282dc12440a2072dc06a616160027ff21bd895eIan Rogers literal_list_(NULL), 9501fd3346740dfb7f47be9922312b68a4227fada96buzbee method_literal_list_(NULL), 9511fd3346740dfb7f47be9922312b68a4227fada96buzbee code_literal_list_(NULL), 9521fd3346740dfb7f47be9922312b68a4227fada96buzbee cu_(cu), 9531fd3346740dfb7f47be9922312b68a4227fada96buzbee mir_graph_(mir_graph), 954862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee switch_tables_(arena, 4, kGrowableArraySwitchTables), 955862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee fill_array_data_(arena, 4, kGrowableArrayFillArrayData), 956862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee throw_launchpads_(arena, 2048, kGrowableArrayThrowLaunchPads), 957862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee suspend_launchpads_(arena, 4, kGrowableArraySuspendLaunchPads), 958862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee intrinsic_launchpads_(arena, 2048, kGrowableArrayMisc), 959bd663de599b16229085759366c56e2ed5a1dc7ecbuzbee tempreg_info_(arena, 20, kGrowableArrayMisc), 960bd663de599b16229085759366c56e2ed5a1dc7ecbuzbee reginfo_map_(arena, 64, kGrowableArrayMisc), 9611fd3346740dfb7f47be9922312b68a4227fada96buzbee data_offset_(0), 9621fd3346740dfb7f47be9922312b68a4227fada96buzbee total_size_(0), 9631fd3346740dfb7f47be9922312b68a4227fada96buzbee block_label_list_(NULL), 964862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee current_dalvik_offset_(0), 965862a76027076c341c26aa6cd4a30a7cdd6dc2143buzbee reg_pool_(NULL), 9661fd3346740dfb7f47be9922312b68a4227fada96buzbee live_sreg_(0), 9671fd3346740dfb7f47be9922312b68a4227fada96buzbee num_core_spills_(0), 9681fd3346740dfb7f47be9922312b68a4227fada96buzbee num_fp_spills_(0), 9691fd3346740dfb7f47be9922312b68a4227fada96buzbee frame_size_(0), 9701fd3346740dfb7f47be9922312b68a4227fada96buzbee core_spill_mask_(0), 9711fd3346740dfb7f47be9922312b68a4227fada96buzbee fp_spill_mask_(0), 9721fd3346740dfb7f47be9922312b68a4227fada96buzbee first_lir_insn_(NULL), 9732ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstrom last_lir_insn_(NULL) { 9741fd3346740dfb7f47be9922312b68a4227fada96buzbee promotion_map_ = static_cast<PromotionMap*> 975f6c4b3ba3825de1dbb3e747a68b809c6cc8eb4dbMathieu Chartier (arena_->Alloc((cu_->num_dalvik_registers + cu_->num_compiler_temps + 1) * 976f6c4b3ba3825de1dbb3e747a68b809c6cc8eb4dbMathieu Chartier sizeof(promotion_map_[0]), ArenaAllocator::kAllocRegAlloc)); 9771fd3346740dfb7f47be9922312b68a4227fada96buzbee} 9781fd3346740dfb7f47be9922312b68a4227fada96buzbee 9791fd3346740dfb7f47be9922312b68a4227fada96buzbeevoid Mir2Lir::Materialize() { 9801fd3346740dfb7f47be9922312b68a4227fada96buzbee CompilerInitializeRegAlloc(); // Needs to happen after SSA naming 9811fd3346740dfb7f47be9922312b68a4227fada96buzbee 9821fd3346740dfb7f47be9922312b68a4227fada96buzbee /* Allocate Registers using simple local allocation scheme */ 9831fd3346740dfb7f47be9922312b68a4227fada96buzbee SimpleRegAlloc(); 9841fd3346740dfb7f47be9922312b68a4227fada96buzbee 985479f83c196d5a95e36196eac548dc6019e70a5bebuzbee if (mir_graph_->IsSpecialCase()) { 9861fd3346740dfb7f47be9922312b68a4227fada96buzbee /* 9871fd3346740dfb7f47be9922312b68a4227fada96buzbee * Custom codegen for special cases. If for any reason the 9881fd3346740dfb7f47be9922312b68a4227fada96buzbee * special codegen doesn't succeed, first_lir_insn_ will 9891fd3346740dfb7f47be9922312b68a4227fada96buzbee * set to NULL; 9901fd3346740dfb7f47be9922312b68a4227fada96buzbee */ 991479f83c196d5a95e36196eac548dc6019e70a5bebuzbee SpecialMIR2LIR(mir_graph_->GetSpecialCase()); 9921fd3346740dfb7f47be9922312b68a4227fada96buzbee } 9931fd3346740dfb7f47be9922312b68a4227fada96buzbee 9941fd3346740dfb7f47be9922312b68a4227fada96buzbee /* Convert MIR to LIR, etc. */ 9951fd3346740dfb7f47be9922312b68a4227fada96buzbee if (first_lir_insn_ == NULL) { 9961fd3346740dfb7f47be9922312b68a4227fada96buzbee MethodMIR2LIR(); 9971fd3346740dfb7f47be9922312b68a4227fada96buzbee } 9981fd3346740dfb7f47be9922312b68a4227fada96buzbee 9991fd3346740dfb7f47be9922312b68a4227fada96buzbee /* Method is not empty */ 10001fd3346740dfb7f47be9922312b68a4227fada96buzbee if (first_lir_insn_) { 10011fd3346740dfb7f47be9922312b68a4227fada96buzbee // mark the targets of switch statement case labels 10021fd3346740dfb7f47be9922312b68a4227fada96buzbee ProcessSwitchTables(); 10031fd3346740dfb7f47be9922312b68a4227fada96buzbee 10041fd3346740dfb7f47be9922312b68a4227fada96buzbee /* Convert LIR into machine code. */ 10051fd3346740dfb7f47be9922312b68a4227fada96buzbee AssembleLIR(); 10061fd3346740dfb7f47be9922312b68a4227fada96buzbee 10071fd3346740dfb7f47be9922312b68a4227fada96buzbee if (cu_->verbose) { 10081fd3346740dfb7f47be9922312b68a4227fada96buzbee CodegenDump(); 10091fd3346740dfb7f47be9922312b68a4227fada96buzbee } 10101fd3346740dfb7f47be9922312b68a4227fada96buzbee } 10111fd3346740dfb7f47be9922312b68a4227fada96buzbee} 10121fd3346740dfb7f47be9922312b68a4227fada96buzbee 10131fd3346740dfb7f47be9922312b68a4227fada96buzbeeCompiledMethod* Mir2Lir::GetCompiledMethod() { 10141fd3346740dfb7f47be9922312b68a4227fada96buzbee // Combine vmap tables - core regs, then fp regs - into vmap_table 101596faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers std::vector<uint16_t> raw_vmap_table; 10161fd3346740dfb7f47be9922312b68a4227fada96buzbee // Core regs may have been inserted out of order - sort first 10171fd3346740dfb7f47be9922312b68a4227fada96buzbee std::sort(core_vmap_table_.begin(), core_vmap_table_.end()); 1018193bad9b9cfd10642043fa2ebbfc68bd5f9ede4bMathieu Chartier for (size_t i = 0 ; i < core_vmap_table_.size(); ++i) { 10191fd3346740dfb7f47be9922312b68a4227fada96buzbee // Copy, stripping out the phys register sort key 102096faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers raw_vmap_table.push_back(~(-1 << VREG_NUM_WIDTH) & core_vmap_table_[i]); 10211fd3346740dfb7f47be9922312b68a4227fada96buzbee } 10221fd3346740dfb7f47be9922312b68a4227fada96buzbee // If we have a frame, push a marker to take place of lr 10231fd3346740dfb7f47be9922312b68a4227fada96buzbee if (frame_size_ > 0) { 102496faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers raw_vmap_table.push_back(INVALID_VREG); 10251fd3346740dfb7f47be9922312b68a4227fada96buzbee } else { 10261fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK_EQ(__builtin_popcount(core_spill_mask_), 0); 10271fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK_EQ(__builtin_popcount(fp_spill_mask_), 0); 10281fd3346740dfb7f47be9922312b68a4227fada96buzbee } 10291fd3346740dfb7f47be9922312b68a4227fada96buzbee // Combine vmap tables - core regs, then fp regs. fp regs already sorted 10301fd3346740dfb7f47be9922312b68a4227fada96buzbee for (uint32_t i = 0; i < fp_vmap_table_.size(); i++) { 103196faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers raw_vmap_table.push_back(fp_vmap_table_[i]); 103296faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers } 103396faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers UnsignedLeb128EncodingVector vmap_encoder; 103496faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers // Prefix the encoded data with its size. 103596faf5b363d922ae91cf25404dee0e87c740c7c5Ian Rogers vmap_encoder.PushBack(raw_vmap_table.size()); 1036193bad9b9cfd10642043fa2ebbfc68bd5f9ede4bMathieu Chartier for (uint16_t cur : raw_vmap_table) { 1037193bad9b9cfd10642043fa2ebbfc68bd5f9ede4bMathieu Chartier vmap_encoder.PushBack(cur); 10381fd3346740dfb7f47be9922312b68a4227fada96buzbee } 10391fd3346740dfb7f47be9922312b68a4227fada96buzbee CompiledMethod* result = 1040193bad9b9cfd10642043fa2ebbfc68bd5f9ede4bMathieu Chartier new CompiledMethod(*cu_->compiler_driver, cu_->instruction_set, code_buffer_, frame_size_, 1041193bad9b9cfd10642043fa2ebbfc68bd5f9ede4bMathieu Chartier core_spill_mask_, fp_spill_mask_, encoded_mapping_table_.GetData(), 1042193bad9b9cfd10642043fa2ebbfc68bd5f9ede4bMathieu Chartier vmap_encoder.GetData(), native_gc_map_); 10431fd3346740dfb7f47be9922312b68a4227fada96buzbee return result; 10441fd3346740dfb7f47be9922312b68a4227fada96buzbee} 10451fd3346740dfb7f47be9922312b68a4227fada96buzbee 10461fd3346740dfb7f47be9922312b68a4227fada96buzbeeint Mir2Lir::ComputeFrameSize() { 10471fd3346740dfb7f47be9922312b68a4227fada96buzbee /* Figure out the frame size */ 10481fd3346740dfb7f47be9922312b68a4227fada96buzbee static const uint32_t kAlignMask = kStackAlignment - 1; 10491fd3346740dfb7f47be9922312b68a4227fada96buzbee uint32_t size = (num_core_spills_ + num_fp_spills_ + 10501fd3346740dfb7f47be9922312b68a4227fada96buzbee 1 /* filler word */ + cu_->num_regs + cu_->num_outs + 10511fd3346740dfb7f47be9922312b68a4227fada96buzbee cu_->num_compiler_temps + 1 /* cur_method* */) 10521fd3346740dfb7f47be9922312b68a4227fada96buzbee * sizeof(uint32_t); 10531fd3346740dfb7f47be9922312b68a4227fada96buzbee /* Align and set */ 10541fd3346740dfb7f47be9922312b68a4227fada96buzbee return (size + kAlignMask) & ~(kAlignMask); 10551fd3346740dfb7f47be9922312b68a4227fada96buzbee} 10561fd3346740dfb7f47be9922312b68a4227fada96buzbee 10571fd3346740dfb7f47be9922312b68a4227fada96buzbee/* 10581fd3346740dfb7f47be9922312b68a4227fada96buzbee * Append an LIR instruction to the LIR list maintained by a compilation 10591fd3346740dfb7f47be9922312b68a4227fada96buzbee * unit 10601fd3346740dfb7f47be9922312b68a4227fada96buzbee */ 10612ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::AppendLIR(LIR* lir) { 10621fd3346740dfb7f47be9922312b68a4227fada96buzbee if (first_lir_insn_ == NULL) { 10631fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK(last_lir_insn_ == NULL); 10641fd3346740dfb7f47be9922312b68a4227fada96buzbee last_lir_insn_ = first_lir_insn_ = lir; 10651fd3346740dfb7f47be9922312b68a4227fada96buzbee lir->prev = lir->next = NULL; 10661fd3346740dfb7f47be9922312b68a4227fada96buzbee } else { 10671fd3346740dfb7f47be9922312b68a4227fada96buzbee last_lir_insn_->next = lir; 10681fd3346740dfb7f47be9922312b68a4227fada96buzbee lir->prev = last_lir_insn_; 10691fd3346740dfb7f47be9922312b68a4227fada96buzbee lir->next = NULL; 10701fd3346740dfb7f47be9922312b68a4227fada96buzbee last_lir_insn_ = lir; 10711fd3346740dfb7f47be9922312b68a4227fada96buzbee } 10721fd3346740dfb7f47be9922312b68a4227fada96buzbee} 10731fd3346740dfb7f47be9922312b68a4227fada96buzbee 10741fd3346740dfb7f47be9922312b68a4227fada96buzbee/* 10751fd3346740dfb7f47be9922312b68a4227fada96buzbee * Insert an LIR instruction before the current instruction, which cannot be the 10761fd3346740dfb7f47be9922312b68a4227fada96buzbee * first instruction. 10771fd3346740dfb7f47be9922312b68a4227fada96buzbee * 10781fd3346740dfb7f47be9922312b68a4227fada96buzbee * prev_lir <-> new_lir <-> current_lir 10791fd3346740dfb7f47be9922312b68a4227fada96buzbee */ 10802ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::InsertLIRBefore(LIR* current_lir, LIR* new_lir) { 10811fd3346740dfb7f47be9922312b68a4227fada96buzbee DCHECK(current_lir->prev != NULL); 10821fd3346740dfb7f47be9922312b68a4227fada96buzbee LIR *prev_lir = current_lir->prev; 10831fd3346740dfb7f47be9922312b68a4227fada96buzbee 10841fd3346740dfb7f47be9922312b68a4227fada96buzbee prev_lir->next = new_lir; 10851fd3346740dfb7f47be9922312b68a4227fada96buzbee new_lir->prev = prev_lir; 10861fd3346740dfb7f47be9922312b68a4227fada96buzbee new_lir->next = current_lir; 10871fd3346740dfb7f47be9922312b68a4227fada96buzbee current_lir->prev = new_lir; 10881fd3346740dfb7f47be9922312b68a4227fada96buzbee} 10891fd3346740dfb7f47be9922312b68a4227fada96buzbee 10901fd3346740dfb7f47be9922312b68a4227fada96buzbee/* 10911fd3346740dfb7f47be9922312b68a4227fada96buzbee * Insert an LIR instruction after the current instruction, which cannot be the 10921fd3346740dfb7f47be9922312b68a4227fada96buzbee * first instruction. 10931fd3346740dfb7f47be9922312b68a4227fada96buzbee * 10941fd3346740dfb7f47be9922312b68a4227fada96buzbee * current_lir -> new_lir -> old_next 10951fd3346740dfb7f47be9922312b68a4227fada96buzbee */ 10962ce745c06271d5223d57dbf08117b20d5b60694aBrian Carlstromvoid Mir2Lir::InsertLIRAfter(LIR* current_lir, LIR* new_lir) { 10971fd3346740dfb7f47be9922312b68a4227fada96buzbee new_lir->prev = current_lir; 10981fd3346740dfb7f47be9922312b68a4227fada96buzbee new_lir->next = current_lir->next; 10991fd3346740dfb7f47be9922312b68a4227fada96buzbee current_lir->next = new_lir; 11001fd3346740dfb7f47be9922312b68a4227fada96buzbee new_lir->next->prev = new_lir; 11011fd3346740dfb7f47be9922312b68a4227fada96buzbee} 11021fd3346740dfb7f47be9922312b68a4227fada96buzbee 11037934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom} // namespace art 1104