OLD | NEW |
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 |
(...skipping 2415 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
2426 return Representation::Double(); | 2426 return Representation::Double(); |
2427 case kMathAbs: | 2427 case kMathAbs: |
2428 return representation(); | 2428 return representation(); |
2429 default: | 2429 default: |
2430 UNREACHABLE(); | 2430 UNREACHABLE(); |
2431 return Representation::None(); | 2431 return Representation::None(); |
2432 } | 2432 } |
2433 } | 2433 } |
2434 } | 2434 } |
2435 | 2435 |
2436 virtual void UpdateRepresentation(Representation new_rep, | |
2437 HInferRepresentationPhase* h_infer, | |
2438 const char* reason) { | |
2439 if (flexible_int() && !new_rep.IsSmi()) { | |
2440 new_rep = Representation::Integer32(); | |
2441 } | |
2442 HValue::UpdateRepresentation(new_rep, h_infer, reason); | |
2443 } | |
2444 | |
2445 virtual void RepresentationChanged(Representation new_rep) { | |
2446 if (flexible_int() && new_rep.IsInteger32()) { | |
2447 ClearFlag(kFlexibleRepresentation); | |
2448 } | |
2449 } | |
2450 | |
2451 virtual Range* InferRange(Zone* zone); | 2436 virtual Range* InferRange(Zone* zone); |
2452 | 2437 |
2453 virtual HValue* Canonicalize(); | 2438 virtual HValue* Canonicalize(); |
2454 virtual Representation RepresentationFromInputs(); | 2439 virtual Representation RepresentationFromInputs(); |
2455 | 2440 |
2456 BuiltinFunctionId op() const { return op_; } | 2441 BuiltinFunctionId op() const { return op_; } |
2457 const char* OpName() const; | 2442 const char* OpName() const; |
2458 | 2443 |
2459 DECLARE_CONCRETE_INSTRUCTION(UnaryMathOperation) | 2444 DECLARE_CONCRETE_INSTRUCTION(UnaryMathOperation) |
2460 | 2445 |
2461 protected: | 2446 protected: |
2462 virtual bool DataEquals(HValue* other) { | 2447 virtual bool DataEquals(HValue* other) { |
2463 HUnaryMathOperation* b = HUnaryMathOperation::cast(other); | 2448 HUnaryMathOperation* b = HUnaryMathOperation::cast(other); |
2464 return op_ == b->op(); | 2449 return op_ == b->op(); |
2465 } | 2450 } |
2466 | 2451 |
2467 private: | 2452 private: |
2468 bool flexible_int() { | |
2469 return op_ == kMathFloor || op_ == kMathRound; | |
2470 } | |
2471 | |
2472 HUnaryMathOperation(HValue* context, HValue* value, BuiltinFunctionId op) | 2453 HUnaryMathOperation(HValue* context, HValue* value, BuiltinFunctionId op) |
2473 : HTemplateInstruction<2>(HType::TaggedNumber()), op_(op) { | 2454 : HTemplateInstruction<2>(HType::TaggedNumber()), op_(op) { |
2474 SetOperandAt(0, context); | 2455 SetOperandAt(0, context); |
2475 SetOperandAt(1, value); | 2456 SetOperandAt(1, value); |
2476 switch (op) { | 2457 switch (op) { |
2477 case kMathFloor: | 2458 case kMathFloor: |
2478 case kMathRound: | 2459 case kMathRound: |
2479 set_representation(Representation::Smi()); | 2460 set_representation(Representation::Integer32()); |
2480 SetFlag(kFlexibleRepresentation); | |
2481 break; | 2461 break; |
2482 case kMathAbs: | 2462 case kMathAbs: |
2483 // Not setting representation here: it is None intentionally. | 2463 // Not setting representation here: it is None intentionally. |
2484 SetFlag(kFlexibleRepresentation); | 2464 SetFlag(kFlexibleRepresentation); |
2485 // TODO(svenpanne) This flag is actually only needed if representation() | 2465 // TODO(svenpanne) This flag is actually only needed if representation() |
2486 // is tagged, and not when it is an unboxed double or unboxed integer. | 2466 // is tagged, and not when it is an unboxed double or unboxed integer. |
2487 SetGVNFlag(kChangesNewSpacePromotion); | 2467 SetGVNFlag(kChangesNewSpacePromotion); |
2488 break; | 2468 break; |
2489 case kMathLog: | 2469 case kMathLog: |
2490 case kMathSin: | 2470 case kMathSin: |
(...skipping 4316 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
6807 virtual bool IsDeletable() const { return true; } | 6787 virtual bool IsDeletable() const { return true; } |
6808 }; | 6788 }; |
6809 | 6789 |
6810 | 6790 |
6811 #undef DECLARE_INSTRUCTION | 6791 #undef DECLARE_INSTRUCTION |
6812 #undef DECLARE_CONCRETE_INSTRUCTION | 6792 #undef DECLARE_CONCRETE_INSTRUCTION |
6813 | 6793 |
6814 } } // namespace v8::internal | 6794 } } // namespace v8::internal |
6815 | 6795 |
6816 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ | 6796 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ |
OLD | NEW |