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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef V8_X87_LITHIUM_CODEGEN_X87_H_ | 5 #ifndef V8_X87_LITHIUM_CODEGEN_X87_H_ |
| 6 #define V8_X87_LITHIUM_CODEGEN_X87_H_ | 6 #define V8_X87_LITHIUM_CODEGEN_X87_H_ |
| 7 | 7 |
| 8 #include "src/x87/lithium-x87.h" | 8 #include "src/x87/lithium-x87.h" |
| 9 | 9 |
| 10 #include "src/base/logging.h" | 10 #include "src/base/logging.h" |
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| 167 Register input, | 167 Register input, |
| 168 Register temporary, | 168 Register temporary, |
| 169 Register temporary2); | 169 Register temporary2); |
| 170 | 170 |
| 171 int GetStackSlotCount() const { return chunk()->spill_slot_count(); } | 171 int GetStackSlotCount() const { return chunk()->spill_slot_count(); } |
| 172 | 172 |
| 173 void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code, zone()); } | 173 void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code, zone()); } |
| 174 | 174 |
| 175 // Code generation passes. Returns true if code generation should | 175 // Code generation passes. Returns true if code generation should |
| 176 // continue. | 176 // continue. |
| 177 void GenerateBodyInstructionPre(LInstruction* instr) V8_OVERRIDE; | 177 void GenerateBodyInstructionPre(LInstruction* instr) OVERRIDE; |
| 178 void GenerateBodyInstructionPost(LInstruction* instr) V8_OVERRIDE; | 178 void GenerateBodyInstructionPost(LInstruction* instr) OVERRIDE; |
| 179 bool GeneratePrologue(); | 179 bool GeneratePrologue(); |
| 180 bool GenerateDeferredCode(); | 180 bool GenerateDeferredCode(); |
| 181 bool GenerateJumpTable(); | 181 bool GenerateJumpTable(); |
| 182 bool GenerateSafepointTable(); | 182 bool GenerateSafepointTable(); |
| 183 | 183 |
| 184 // Generates the custom OSR entrypoint and sets the osr_pc_offset. | 184 // Generates the custom OSR entrypoint and sets the osr_pc_offset. |
| 185 void GenerateOsrPrologue(); | 185 void GenerateOsrPrologue(); |
| 186 | 186 |
| 187 enum SafepointMode { | 187 enum SafepointMode { |
| 188 RECORD_SIMPLE_SAFEPOINT, | 188 RECORD_SIMPLE_SAFEPOINT, |
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| 277 void RecordSafepoint(LPointerMap* pointers, | 277 void RecordSafepoint(LPointerMap* pointers, |
| 278 Safepoint::Kind kind, | 278 Safepoint::Kind kind, |
| 279 int arguments, | 279 int arguments, |
| 280 Safepoint::DeoptMode mode); | 280 Safepoint::DeoptMode mode); |
| 281 void RecordSafepoint(LPointerMap* pointers, Safepoint::DeoptMode mode); | 281 void RecordSafepoint(LPointerMap* pointers, Safepoint::DeoptMode mode); |
| 282 void RecordSafepoint(Safepoint::DeoptMode mode); | 282 void RecordSafepoint(Safepoint::DeoptMode mode); |
| 283 void RecordSafepointWithRegisters(LPointerMap* pointers, | 283 void RecordSafepointWithRegisters(LPointerMap* pointers, |
| 284 int arguments, | 284 int arguments, |
| 285 Safepoint::DeoptMode mode); | 285 Safepoint::DeoptMode mode); |
| 286 | 286 |
| 287 void RecordAndWritePosition(int position) V8_OVERRIDE; | 287 void RecordAndWritePosition(int position) OVERRIDE; |
| 288 | 288 |
| 289 static Condition TokenToCondition(Token::Value op, bool is_unsigned); | 289 static Condition TokenToCondition(Token::Value op, bool is_unsigned); |
| 290 void EmitGoto(int block); | 290 void EmitGoto(int block); |
| 291 | 291 |
| 292 // EmitBranch expects to be the last instruction of a block. | 292 // EmitBranch expects to be the last instruction of a block. |
| 293 template<class InstrType> | 293 template<class InstrType> |
| 294 void EmitBranch(InstrType instr, Condition cc); | 294 void EmitBranch(InstrType instr, Condition cc); |
| 295 template<class InstrType> | 295 template<class InstrType> |
| 296 void EmitFalseBranch(InstrType instr, Condition cc); | 296 void EmitFalseBranch(InstrType instr, Condition cc); |
| 297 void EmitNumberUntagDNoSSE2( | 297 void EmitNumberUntagDNoSSE2( |
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| 329 void EmitIsConstructCall(Register temp); | 329 void EmitIsConstructCall(Register temp); |
| 330 | 330 |
| 331 // Emits optimized code to deep-copy the contents of statically known | 331 // Emits optimized code to deep-copy the contents of statically known |
| 332 // object graphs (e.g. object literal boilerplate). | 332 // object graphs (e.g. object literal boilerplate). |
| 333 void EmitDeepCopy(Handle<JSObject> object, | 333 void EmitDeepCopy(Handle<JSObject> object, |
| 334 Register result, | 334 Register result, |
| 335 Register source, | 335 Register source, |
| 336 int* offset, | 336 int* offset, |
| 337 AllocationSiteMode mode); | 337 AllocationSiteMode mode); |
| 338 | 338 |
| 339 void EnsureSpaceForLazyDeopt(int space_needed) V8_OVERRIDE; | 339 void EnsureSpaceForLazyDeopt(int space_needed) OVERRIDE; |
| 340 void DoLoadKeyedExternalArray(LLoadKeyed* instr); | 340 void DoLoadKeyedExternalArray(LLoadKeyed* instr); |
| 341 void DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr); | 341 void DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr); |
| 342 void DoLoadKeyedFixedArray(LLoadKeyed* instr); | 342 void DoLoadKeyedFixedArray(LLoadKeyed* instr); |
| 343 void DoStoreKeyedExternalArray(LStoreKeyed* instr); | 343 void DoStoreKeyedExternalArray(LStoreKeyed* instr); |
| 344 void DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr); | 344 void DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr); |
| 345 void DoStoreKeyedFixedArray(LStoreKeyed* instr); | 345 void DoStoreKeyedFixedArray(LStoreKeyed* instr); |
| 346 | 346 |
| 347 template <class T> | 347 template <class T> |
| 348 void EmitVectorLoadICRegisters(T* instr); | 348 void EmitVectorLoadICRegisters(T* instr); |
| 349 | 349 |
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| 433 | 433 |
| 434 // Builder that keeps track of safepoints in the code. The table | 434 // Builder that keeps track of safepoints in the code. The table |
| 435 // itself is emitted at the end of the generated code. | 435 // itself is emitted at the end of the generated code. |
| 436 SafepointTableBuilder safepoints_; | 436 SafepointTableBuilder safepoints_; |
| 437 | 437 |
| 438 // Compiler from a set of parallel moves to a sequential list of moves. | 438 // Compiler from a set of parallel moves to a sequential list of moves. |
| 439 LGapResolver resolver_; | 439 LGapResolver resolver_; |
| 440 | 440 |
| 441 Safepoint::Kind expected_safepoint_kind_; | 441 Safepoint::Kind expected_safepoint_kind_; |
| 442 | 442 |
| 443 class PushSafepointRegistersScope V8_FINAL BASE_EMBEDDED { | 443 class PushSafepointRegistersScope FINAL BASE_EMBEDDED { |
| 444 public: | 444 public: |
| 445 explicit PushSafepointRegistersScope(LCodeGen* codegen) | 445 explicit PushSafepointRegistersScope(LCodeGen* codegen) |
| 446 : codegen_(codegen) { | 446 : codegen_(codegen) { |
| 447 DCHECK(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); | 447 DCHECK(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); |
| 448 codegen_->masm_->PushSafepointRegisters(); | 448 codegen_->masm_->PushSafepointRegisters(); |
| 449 codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters; | 449 codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters; |
| 450 DCHECK(codegen_->info()->is_calling()); | 450 DCHECK(codegen_->info()->is_calling()); |
| 451 } | 451 } |
| 452 | 452 |
| 453 ~PushSafepointRegistersScope() { | 453 ~PushSafepointRegistersScope() { |
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| 498 Label exit_; | 498 Label exit_; |
| 499 Label* external_exit_; | 499 Label* external_exit_; |
| 500 Label done_; | 500 Label done_; |
| 501 int instruction_index_; | 501 int instruction_index_; |
| 502 LCodeGen::X87Stack x87_stack_; | 502 LCodeGen::X87Stack x87_stack_; |
| 503 }; | 503 }; |
| 504 | 504 |
| 505 } } // namespace v8::internal | 505 } } // namespace v8::internal |
| 506 | 506 |
| 507 #endif // V8_X87_LITHIUM_CODEGEN_X87_H_ | 507 #endif // V8_X87_LITHIUM_CODEGEN_X87_H_ |
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