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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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| 36 | 36 |
| 37 namespace v8 { | 37 namespace v8 { |
| 38 namespace internal { | 38 namespace internal { |
| 39 | 39 |
| 40 // Forward declarations. | 40 // Forward declarations. |
| 41 class LDeferredCode; | 41 class LDeferredCode; |
| 42 class SafepointGenerator; | 42 class SafepointGenerator; |
| 43 | 43 |
| 44 class LCodeGen BASE_EMBEDDED { | 44 class LCodeGen BASE_EMBEDDED { |
| 45 public: | 45 public: |
| 46 LCodeGen(LChunk* chunk, MacroAssembler* assembler, CompilationInfo* info) | 46 LCodeGen(LChunk* chunk, MacroAssembler* assembler, CompilationInfo* info, |
| 47 Zone* zone) |
| 47 : chunk_(chunk), | 48 : chunk_(chunk), |
| 48 masm_(assembler), | 49 masm_(assembler), |
| 49 info_(info), | 50 info_(info), |
| 50 current_block_(-1), | 51 current_block_(-1), |
| 51 current_instruction_(-1), | 52 current_instruction_(-1), |
| 52 instructions_(chunk->instructions()), | 53 instructions_(chunk->instructions()), |
| 53 deoptimizations_(4), | 54 deoptimizations_(4), |
| 54 deopt_jump_table_(4), | 55 deopt_jump_table_(4), |
| 55 deoptimization_literals_(8), | 56 deoptimization_literals_(8), |
| 56 inlined_function_count_(0), | 57 inlined_function_count_(0), |
| 57 scope_(info->scope()), | 58 scope_(info->scope()), |
| 58 status_(UNUSED), | 59 status_(UNUSED), |
| 60 translations_(zone), |
| 59 deferred_(8), | 61 deferred_(8), |
| 60 osr_pc_offset_(-1), | 62 osr_pc_offset_(-1), |
| 61 last_lazy_deopt_pc_(0), | 63 last_lazy_deopt_pc_(0), |
| 64 safepoints_(zone), |
| 62 resolver_(this), | 65 resolver_(this), |
| 63 expected_safepoint_kind_(Safepoint::kSimple) { | 66 expected_safepoint_kind_(Safepoint::kSimple), |
| 67 zone_(zone) { |
| 64 PopulateDeoptimizationLiteralsWithInlinedFunctions(); | 68 PopulateDeoptimizationLiteralsWithInlinedFunctions(); |
| 65 } | 69 } |
| 66 | 70 |
| 67 | 71 |
| 68 // Simple accessors. | 72 // Simple accessors. |
| 69 MacroAssembler* masm() const { return masm_; } | 73 MacroAssembler* masm() const { return masm_; } |
| 70 CompilationInfo* info() const { return info_; } | 74 CompilationInfo* info() const { return info_; } |
| 71 Isolate* isolate() const { return info_->isolate(); } | 75 Isolate* isolate() const { return info_->isolate(); } |
| 72 Factory* factory() const { return isolate()->factory(); } | 76 Factory* factory() const { return isolate()->factory(); } |
| 73 Heap* heap() const { return isolate()->heap(); } | 77 Heap* heap() const { return isolate()->heap(); } |
| 78 Zone* zone() const { return zone_; } |
| 74 | 79 |
| 75 // Support for converting LOperands to assembler types. | 80 // Support for converting LOperands to assembler types. |
| 76 // LOperand must be a register. | 81 // LOperand must be a register. |
| 77 Register ToRegister(LOperand* op) const; | 82 Register ToRegister(LOperand* op) const; |
| 78 | 83 |
| 79 // LOperand is loaded into scratch, unless already a register. | 84 // LOperand is loaded into scratch, unless already a register. |
| 80 Register EmitLoadRegister(LOperand* op, Register scratch); | 85 Register EmitLoadRegister(LOperand* op, Register scratch); |
| 81 | 86 |
| 82 // LOperand must be a double register. | 87 // LOperand must be a double register. |
| 83 DoubleRegister ToDoubleRegister(LOperand* op) const; | 88 DoubleRegister ToDoubleRegister(LOperand* op) const; |
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| 368 | 373 |
| 369 // Builder that keeps track of safepoints in the code. The table | 374 // Builder that keeps track of safepoints in the code. The table |
| 370 // itself is emitted at the end of the generated code. | 375 // itself is emitted at the end of the generated code. |
| 371 SafepointTableBuilder safepoints_; | 376 SafepointTableBuilder safepoints_; |
| 372 | 377 |
| 373 // Compiler from a set of parallel moves to a sequential list of moves. | 378 // Compiler from a set of parallel moves to a sequential list of moves. |
| 374 LGapResolver resolver_; | 379 LGapResolver resolver_; |
| 375 | 380 |
| 376 Safepoint::Kind expected_safepoint_kind_; | 381 Safepoint::Kind expected_safepoint_kind_; |
| 377 | 382 |
| 383 Zone* zone_; |
| 384 |
| 378 class PushSafepointRegistersScope BASE_EMBEDDED { | 385 class PushSafepointRegistersScope BASE_EMBEDDED { |
| 379 public: | 386 public: |
| 380 PushSafepointRegistersScope(LCodeGen* codegen, | 387 PushSafepointRegistersScope(LCodeGen* codegen, |
| 381 Safepoint::Kind kind) | 388 Safepoint::Kind kind) |
| 382 : codegen_(codegen) { | 389 : codegen_(codegen) { |
| 383 ASSERT(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); | 390 ASSERT(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); |
| 384 codegen_->expected_safepoint_kind_ = kind; | 391 codegen_->expected_safepoint_kind_ = kind; |
| 385 | 392 |
| 386 switch (codegen_->expected_safepoint_kind_) { | 393 switch (codegen_->expected_safepoint_kind_) { |
| 387 case Safepoint::kWithRegisters: | 394 case Safepoint::kWithRegisters: |
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| 448 LCodeGen* codegen_; | 455 LCodeGen* codegen_; |
| 449 Label entry_; | 456 Label entry_; |
| 450 Label exit_; | 457 Label exit_; |
| 451 Label* external_exit_; | 458 Label* external_exit_; |
| 452 int instruction_index_; | 459 int instruction_index_; |
| 453 }; | 460 }; |
| 454 | 461 |
| 455 } } // namespace v8::internal | 462 } } // namespace v8::internal |
| 456 | 463 |
| 457 #endif // V8_MIPS_LITHIUM_CODEGEN_MIPS_H_ | 464 #endif // V8_MIPS_LITHIUM_CODEGEN_MIPS_H_ |
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