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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) OVERRIDE; | 146 void GenerateBodyInstructionPre(LInstruction* instr) override; |
| 147 void GenerateBodyInstructionPost(LInstruction* instr) 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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| 240 // Support for recording safepoint and position information. | 240 // Support for recording safepoint and position information. |
| 241 void RecordSafepoint(LPointerMap* pointers, | 241 void RecordSafepoint(LPointerMap* pointers, |
| 242 Safepoint::Kind kind, | 242 Safepoint::Kind kind, |
| 243 int arguments, | 243 int arguments, |
| 244 Safepoint::DeoptMode mode); | 244 Safepoint::DeoptMode mode); |
| 245 void RecordSafepoint(LPointerMap* pointers, Safepoint::DeoptMode mode); | 245 void RecordSafepoint(LPointerMap* pointers, Safepoint::DeoptMode mode); |
| 246 void RecordSafepoint(Safepoint::DeoptMode mode); | 246 void RecordSafepoint(Safepoint::DeoptMode mode); |
| 247 void RecordSafepointWithRegisters(LPointerMap* pointers, | 247 void RecordSafepointWithRegisters(LPointerMap* pointers, |
| 248 int arguments, | 248 int arguments, |
| 249 Safepoint::DeoptMode mode); | 249 Safepoint::DeoptMode mode); |
| 250 void RecordAndWritePosition(int position) OVERRIDE; | 250 void RecordAndWritePosition(int position) override; |
| 251 | 251 |
| 252 static Condition TokenToCondition(Token::Value op, bool is_unsigned); | 252 static Condition TokenToCondition(Token::Value op, bool is_unsigned); |
| 253 void EmitGoto(int block); | 253 void EmitGoto(int block); |
| 254 | 254 |
| 255 // EmitBranch expects to be the last instruction of a block. | 255 // EmitBranch expects to be the last instruction of a block. |
| 256 template<class InstrType> | 256 template<class InstrType> |
| 257 void EmitBranch(InstrType instr, Condition cc); | 257 void EmitBranch(InstrType instr, Condition cc); |
| 258 template<class InstrType> | 258 template<class InstrType> |
| 259 void EmitFalseBranch(InstrType instr, Condition cc); | 259 void EmitFalseBranch(InstrType instr, Condition cc); |
| 260 void EmitNumberUntagD(LNumberUntagD* instr, Register input, | 260 void EmitNumberUntagD(LNumberUntagD* instr, Register input, |
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| 289 void EmitPushTaggedOperand(LOperand* operand); | 289 void EmitPushTaggedOperand(LOperand* operand); |
| 290 | 290 |
| 291 // Emits optimized code to deep-copy the contents of statically known | 291 // Emits optimized code to deep-copy the contents of statically known |
| 292 // object graphs (e.g. object literal boilerplate). | 292 // object graphs (e.g. object literal boilerplate). |
| 293 void EmitDeepCopy(Handle<JSObject> object, | 293 void EmitDeepCopy(Handle<JSObject> object, |
| 294 Register result, | 294 Register result, |
| 295 Register source, | 295 Register source, |
| 296 int* offset, | 296 int* offset, |
| 297 AllocationSiteMode mode); | 297 AllocationSiteMode mode); |
| 298 | 298 |
| 299 void EnsureSpaceForLazyDeopt(int space_needed) OVERRIDE; | 299 void EnsureSpaceForLazyDeopt(int space_needed) override; |
| 300 void DoLoadKeyedExternalArray(LLoadKeyed* instr); | 300 void DoLoadKeyedExternalArray(LLoadKeyed* instr); |
| 301 void DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr); | 301 void DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr); |
| 302 void DoLoadKeyedFixedArray(LLoadKeyed* instr); | 302 void DoLoadKeyedFixedArray(LLoadKeyed* instr); |
| 303 void DoStoreKeyedExternalArray(LStoreKeyed* instr); | 303 void DoStoreKeyedExternalArray(LStoreKeyed* instr); |
| 304 void DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr); | 304 void DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr); |
| 305 void DoStoreKeyedFixedArray(LStoreKeyed* instr); | 305 void DoStoreKeyedFixedArray(LStoreKeyed* instr); |
| 306 | 306 |
| 307 template <class T> | 307 template <class T> |
| 308 void EmitVectorLoadICRegisters(T* instr); | 308 void EmitVectorLoadICRegisters(T* instr); |
| 309 | 309 |
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| 327 | 327 |
| 328 // Builder that keeps track of safepoints in the code. The table | 328 // Builder that keeps track of safepoints in the code. The table |
| 329 // itself is emitted at the end of the generated code. | 329 // itself is emitted at the end of the generated code. |
| 330 SafepointTableBuilder safepoints_; | 330 SafepointTableBuilder safepoints_; |
| 331 | 331 |
| 332 // Compiler from a set of parallel moves to a sequential list of moves. | 332 // Compiler from a set of parallel moves to a sequential list of moves. |
| 333 LGapResolver resolver_; | 333 LGapResolver resolver_; |
| 334 | 334 |
| 335 Safepoint::Kind expected_safepoint_kind_; | 335 Safepoint::Kind expected_safepoint_kind_; |
| 336 | 336 |
| 337 class PushSafepointRegistersScope FINAL BASE_EMBEDDED { | 337 class PushSafepointRegistersScope final BASE_EMBEDDED { |
| 338 public: | 338 public: |
| 339 explicit PushSafepointRegistersScope(LCodeGen* codegen) | 339 explicit PushSafepointRegistersScope(LCodeGen* codegen) |
| 340 : codegen_(codegen) { | 340 : codegen_(codegen) { |
| 341 DCHECK(codegen_->info()->is_calling()); | 341 DCHECK(codegen_->info()->is_calling()); |
| 342 DCHECK(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); | 342 DCHECK(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); |
| 343 codegen_->masm_->PushSafepointRegisters(); | 343 codegen_->masm_->PushSafepointRegisters(); |
| 344 codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters; | 344 codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters; |
| 345 } | 345 } |
| 346 | 346 |
| 347 ~PushSafepointRegistersScope() { | 347 ~PushSafepointRegistersScope() { |
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| 389 Label entry_; | 389 Label entry_; |
| 390 Label exit_; | 390 Label exit_; |
| 391 Label done_; | 391 Label done_; |
| 392 Label* external_exit_; | 392 Label* external_exit_; |
| 393 int instruction_index_; | 393 int instruction_index_; |
| 394 }; | 394 }; |
| 395 | 395 |
| 396 } } // namespace v8::internal | 396 } } // namespace v8::internal |
| 397 | 397 |
| 398 #endif // V8_X64_LITHIUM_CODEGEN_X64_H_ | 398 #endif // V8_X64_LITHIUM_CODEGEN_X64_H_ |
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