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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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261 } | 261 } |
262 if (!emit_instructions) continue; | 262 if (!emit_instructions) continue; |
263 | 263 |
264 if (FLAG_code_comments && instr->HasInterestingComment(this)) { | 264 if (FLAG_code_comments && instr->HasInterestingComment(this)) { |
265 Comment(";;; <@%d,#%d> %s", | 265 Comment(";;; <@%d,#%d> %s", |
266 current_instruction_, | 266 current_instruction_, |
267 instr->hydrogen_value()->id(), | 267 instr->hydrogen_value()->id(), |
268 instr->Mnemonic()); | 268 instr->Mnemonic()); |
269 } | 269 } |
270 | 270 |
| 271 RecordAndUpdatePosition(instr->position()); |
| 272 |
271 instr->CompileToNative(this); | 273 instr->CompileToNative(this); |
272 } | 274 } |
273 EnsureSpaceForLazyDeopt(); | 275 EnsureSpaceForLazyDeopt(); |
274 last_lazy_deopt_pc_ = masm()->pc_offset(); | 276 last_lazy_deopt_pc_ = masm()->pc_offset(); |
275 return !is_aborted(); | 277 return !is_aborted(); |
276 } | 278 } |
277 | 279 |
278 | 280 |
279 bool LCodeGen::GenerateDeferredCode() { | 281 bool LCodeGen::GenerateDeferredCode() { |
280 ASSERT(is_generating()); | 282 ASSERT(is_generating()); |
281 if (deferred_.length() > 0) { | 283 if (deferred_.length() > 0) { |
282 for (int i = 0; !is_aborted() && i < deferred_.length(); i++) { | 284 for (int i = 0; !is_aborted() && i < deferred_.length(); i++) { |
283 LDeferredCode* code = deferred_[i]; | 285 LDeferredCode* code = deferred_[i]; |
| 286 |
| 287 int pos = instructions_->at(code->instruction_index())->position(); |
| 288 RecordAndUpdatePosition(pos); |
| 289 |
284 Comment(";;; <@%d,#%d> " | 290 Comment(";;; <@%d,#%d> " |
285 "-------------------- Deferred %s --------------------", | 291 "-------------------- Deferred %s --------------------", |
286 code->instruction_index(), | 292 code->instruction_index(), |
287 code->instr()->hydrogen_value()->id(), | 293 code->instr()->hydrogen_value()->id(), |
288 code->instr()->Mnemonic()); | 294 code->instr()->Mnemonic()); |
289 __ bind(code->entry()); | 295 __ bind(code->entry()); |
290 if (NeedsDeferredFrame()) { | 296 if (NeedsDeferredFrame()) { |
291 Comment(";;; Build frame"); | 297 Comment(";;; Build frame"); |
292 ASSERT(!frame_is_built_); | 298 ASSERT(!frame_is_built_); |
293 ASSERT(info()->IsStub()); | 299 ASSERT(info()->IsStub()); |
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973 pointers, Safepoint::kWithRegistersAndDoubles, arguments, deopt_mode); | 979 pointers, Safepoint::kWithRegistersAndDoubles, arguments, deopt_mode); |
974 } | 980 } |
975 | 981 |
976 | 982 |
977 void LCodeGen::RecordPosition(int position) { | 983 void LCodeGen::RecordPosition(int position) { |
978 if (position == RelocInfo::kNoPosition) return; | 984 if (position == RelocInfo::kNoPosition) return; |
979 masm()->positions_recorder()->RecordPosition(position); | 985 masm()->positions_recorder()->RecordPosition(position); |
980 } | 986 } |
981 | 987 |
982 | 988 |
| 989 void LCodeGen::RecordAndUpdatePosition(int position) { |
| 990 if (position >= 0 && position != old_position_) { |
| 991 masm()->positions_recorder()->RecordPosition(position); |
| 992 old_position_ = position; |
| 993 } |
| 994 } |
| 995 |
| 996 |
983 static const char* LabelType(LLabel* label) { | 997 static const char* LabelType(LLabel* label) { |
984 if (label->is_loop_header()) return " (loop header)"; | 998 if (label->is_loop_header()) return " (loop header)"; |
985 if (label->is_osr_entry()) return " (OSR entry)"; | 999 if (label->is_osr_entry()) return " (OSR entry)"; |
986 return ""; | 1000 return ""; |
987 } | 1001 } |
988 | 1002 |
989 | 1003 |
990 void LCodeGen::DoLabel(LLabel* label) { | 1004 void LCodeGen::DoLabel(LLabel* label) { |
991 Comment(";;; <@%d,#%d> -------------------- B%d%s --------------------", | 1005 Comment(";;; <@%d,#%d> -------------------- B%d%s --------------------", |
992 current_instruction_, | 1006 current_instruction_, |
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5865 __ Subu(scratch, result, scratch); | 5879 __ Subu(scratch, result, scratch); |
5866 __ lw(result, FieldMemOperand(scratch, | 5880 __ lw(result, FieldMemOperand(scratch, |
5867 FixedArray::kHeaderSize - kPointerSize)); | 5881 FixedArray::kHeaderSize - kPointerSize)); |
5868 __ bind(&done); | 5882 __ bind(&done); |
5869 } | 5883 } |
5870 | 5884 |
5871 | 5885 |
5872 #undef __ | 5886 #undef __ |
5873 | 5887 |
5874 } } // namespace v8::internal | 5888 } } // namespace v8::internal |
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