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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_X64_LITHIUM_CODEGEN_X64_H_ | 5 #ifndef V8_X64_LITHIUM_CODEGEN_X64_H_ |
| 6 #define V8_X64_LITHIUM_CODEGEN_X64_H_ | 6 #define V8_X64_LITHIUM_CODEGEN_X64_H_ |
| 7 | 7 |
| 8 #include "src/x64/lithium-x64.h" | 8 #include "src/x64/lithium-x64.h" |
| 9 | 9 |
| 10 #include "src/base/logging.h" | 10 #include "src/base/logging.h" |
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| 136 int GetStackSlotCount() const { return chunk()->spill_slot_count(); } | 136 int GetStackSlotCount() const { return chunk()->spill_slot_count(); } |
| 137 | 137 |
| 138 void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code, zone()); } | 138 void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code, zone()); } |
| 139 | 139 |
| 140 | 140 |
| 141 void SaveCallerDoubles(); | 141 void SaveCallerDoubles(); |
| 142 void RestoreCallerDoubles(); | 142 void RestoreCallerDoubles(); |
| 143 | 143 |
| 144 // Code generation passes. Returns true if code generation should | 144 // Code generation passes. Returns true if code generation should |
| 145 // continue. | 145 // continue. |
| 146 void GenerateBodyInstructionPre(LInstruction* instr) V8_OVERRIDE; | 146 void GenerateBodyInstructionPre(LInstruction* instr) OVERRIDE; |
| 147 void GenerateBodyInstructionPost(LInstruction* instr) V8_OVERRIDE; | 147 void GenerateBodyInstructionPost(LInstruction* instr) OVERRIDE; |
| 148 bool GeneratePrologue(); | 148 bool GeneratePrologue(); |
| 149 bool GenerateDeferredCode(); | 149 bool GenerateDeferredCode(); |
| 150 bool GenerateJumpTable(); | 150 bool GenerateJumpTable(); |
| 151 bool GenerateSafepointTable(); | 151 bool GenerateSafepointTable(); |
| 152 | 152 |
| 153 // Generates the custom OSR entrypoint and sets the osr_pc_offset. | 153 // Generates the custom OSR entrypoint and sets the osr_pc_offset. |
| 154 void GenerateOsrPrologue(); | 154 void GenerateOsrPrologue(); |
| 155 | 155 |
| 156 enum SafepointMode { | 156 enum SafepointMode { |
| 157 RECORD_SIMPLE_SAFEPOINT, | 157 RECORD_SIMPLE_SAFEPOINT, |
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| 246 // Support for recording safepoint and position information. | 246 // Support for recording safepoint and position information. |
| 247 void RecordSafepoint(LPointerMap* pointers, | 247 void RecordSafepoint(LPointerMap* pointers, |
| 248 Safepoint::Kind kind, | 248 Safepoint::Kind kind, |
| 249 int arguments, | 249 int arguments, |
| 250 Safepoint::DeoptMode mode); | 250 Safepoint::DeoptMode mode); |
| 251 void RecordSafepoint(LPointerMap* pointers, Safepoint::DeoptMode mode); | 251 void RecordSafepoint(LPointerMap* pointers, Safepoint::DeoptMode mode); |
| 252 void RecordSafepoint(Safepoint::DeoptMode mode); | 252 void RecordSafepoint(Safepoint::DeoptMode mode); |
| 253 void RecordSafepointWithRegisters(LPointerMap* pointers, | 253 void RecordSafepointWithRegisters(LPointerMap* pointers, |
| 254 int arguments, | 254 int arguments, |
| 255 Safepoint::DeoptMode mode); | 255 Safepoint::DeoptMode mode); |
| 256 void RecordAndWritePosition(int position) V8_OVERRIDE; | 256 void RecordAndWritePosition(int position) OVERRIDE; |
| 257 | 257 |
| 258 static Condition TokenToCondition(Token::Value op, bool is_unsigned); | 258 static Condition TokenToCondition(Token::Value op, bool is_unsigned); |
| 259 void EmitGoto(int block); | 259 void EmitGoto(int block); |
| 260 | 260 |
| 261 // EmitBranch expects to be the last instruction of a block. | 261 // EmitBranch expects to be the last instruction of a block. |
| 262 template<class InstrType> | 262 template<class InstrType> |
| 263 void EmitBranch(InstrType instr, Condition cc); | 263 void EmitBranch(InstrType instr, Condition cc); |
| 264 template<class InstrType> | 264 template<class InstrType> |
| 265 void EmitFalseBranch(InstrType instr, Condition cc); | 265 void EmitFalseBranch(InstrType instr, Condition cc); |
| 266 void EmitNumberUntagD( | 266 void EmitNumberUntagD( |
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| 300 void EmitPushTaggedOperand(LOperand* operand); | 300 void EmitPushTaggedOperand(LOperand* operand); |
| 301 | 301 |
| 302 // Emits optimized code to deep-copy the contents of statically known | 302 // Emits optimized code to deep-copy the contents of statically known |
| 303 // object graphs (e.g. object literal boilerplate). | 303 // object graphs (e.g. object literal boilerplate). |
| 304 void EmitDeepCopy(Handle<JSObject> object, | 304 void EmitDeepCopy(Handle<JSObject> object, |
| 305 Register result, | 305 Register result, |
| 306 Register source, | 306 Register source, |
| 307 int* offset, | 307 int* offset, |
| 308 AllocationSiteMode mode); | 308 AllocationSiteMode mode); |
| 309 | 309 |
| 310 void EnsureSpaceForLazyDeopt(int space_needed) V8_OVERRIDE; | 310 void EnsureSpaceForLazyDeopt(int space_needed) OVERRIDE; |
| 311 void DoLoadKeyedExternalArray(LLoadKeyed* instr); | 311 void DoLoadKeyedExternalArray(LLoadKeyed* instr); |
| 312 void DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr); | 312 void DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr); |
| 313 void DoLoadKeyedFixedArray(LLoadKeyed* instr); | 313 void DoLoadKeyedFixedArray(LLoadKeyed* instr); |
| 314 void DoStoreKeyedExternalArray(LStoreKeyed* instr); | 314 void DoStoreKeyedExternalArray(LStoreKeyed* instr); |
| 315 void DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr); | 315 void DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr); |
| 316 void DoStoreKeyedFixedArray(LStoreKeyed* instr); | 316 void DoStoreKeyedFixedArray(LStoreKeyed* instr); |
| 317 | 317 |
| 318 template <class T> | 318 template <class T> |
| 319 void EmitVectorLoadICRegisters(T* instr); | 319 void EmitVectorLoadICRegisters(T* instr); |
| 320 | 320 |
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| 338 | 338 |
| 339 // Builder that keeps track of safepoints in the code. The table | 339 // Builder that keeps track of safepoints in the code. The table |
| 340 // itself is emitted at the end of the generated code. | 340 // itself is emitted at the end of the generated code. |
| 341 SafepointTableBuilder safepoints_; | 341 SafepointTableBuilder safepoints_; |
| 342 | 342 |
| 343 // Compiler from a set of parallel moves to a sequential list of moves. | 343 // Compiler from a set of parallel moves to a sequential list of moves. |
| 344 LGapResolver resolver_; | 344 LGapResolver resolver_; |
| 345 | 345 |
| 346 Safepoint::Kind expected_safepoint_kind_; | 346 Safepoint::Kind expected_safepoint_kind_; |
| 347 | 347 |
| 348 class PushSafepointRegistersScope V8_FINAL BASE_EMBEDDED { | 348 class PushSafepointRegistersScope FINAL BASE_EMBEDDED { |
| 349 public: | 349 public: |
| 350 explicit PushSafepointRegistersScope(LCodeGen* codegen) | 350 explicit PushSafepointRegistersScope(LCodeGen* codegen) |
| 351 : codegen_(codegen) { | 351 : codegen_(codegen) { |
| 352 DCHECK(codegen_->info()->is_calling()); | 352 DCHECK(codegen_->info()->is_calling()); |
| 353 DCHECK(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); | 353 DCHECK(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); |
| 354 codegen_->masm_->PushSafepointRegisters(); | 354 codegen_->masm_->PushSafepointRegisters(); |
| 355 codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters; | 355 codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters; |
| 356 } | 356 } |
| 357 | 357 |
| 358 ~PushSafepointRegistersScope() { | 358 ~PushSafepointRegistersScope() { |
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| 400 Label entry_; | 400 Label entry_; |
| 401 Label exit_; | 401 Label exit_; |
| 402 Label done_; | 402 Label done_; |
| 403 Label* external_exit_; | 403 Label* external_exit_; |
| 404 int instruction_index_; | 404 int instruction_index_; |
| 405 }; | 405 }; |
| 406 | 406 |
| 407 } } // namespace v8::internal | 407 } } // namespace v8::internal |
| 408 | 408 |
| 409 #endif // V8_X64_LITHIUM_CODEGEN_X64_H_ | 409 #endif // V8_X64_LITHIUM_CODEGEN_X64_H_ |
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