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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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| 508 | 508 |
| 509 // Modifies the register even if it does not contain a Smi! | 509 // Modifies the register even if it does not contain a Smi! |
| 510 void SmiUntag(Register reg, Label* is_smi) { | 510 void SmiUntag(Register reg, Label* is_smi) { |
| 511 STATIC_ASSERT(kSmiTagSize == 1); | 511 STATIC_ASSERT(kSmiTagSize == 1); |
| 512 sar(reg, kSmiTagSize); | 512 sar(reg, kSmiTagSize); |
| 513 STATIC_ASSERT(kSmiTag == 0); | 513 STATIC_ASSERT(kSmiTag == 0); |
| 514 j(not_carry, is_smi); | 514 j(not_carry, is_smi); |
| 515 } | 515 } |
| 516 | 516 |
| 517 void LoadUint32(XMMRegister dst, Register src, XMMRegister scratch); | 517 void LoadUint32(XMMRegister dst, Register src, XMMRegister scratch); |
| 518 void LoadUint32NoSSE2(Register src); |
| 518 | 519 |
| 519 // Jump the register contains a smi. | 520 // Jump the register contains a smi. |
| 520 inline void JumpIfSmi(Register value, | 521 inline void JumpIfSmi(Register value, |
| 521 Label* smi_label, | 522 Label* smi_label, |
| 522 Label::Distance distance = Label::kFar) { | 523 Label::Distance distance = Label::kFar) { |
| 523 test(value, Immediate(kSmiTagMask)); | 524 test(value, Immediate(kSmiTagMask)); |
| 524 j(zero, smi_label, distance); | 525 j(zero, smi_label, distance); |
| 525 } | 526 } |
| 526 // Jump if the operand is a smi. | 527 // Jump if the operand is a smi. |
| 527 inline void JumpIfSmi(Operand value, | 528 inline void JumpIfSmi(Operand value, |
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| 753 // Call a code stub. Generate the code if necessary. | 754 // Call a code stub. Generate the code if necessary. |
| 754 void CallStub(CodeStub* stub, TypeFeedbackId ast_id = TypeFeedbackId::None()); | 755 void CallStub(CodeStub* stub, TypeFeedbackId ast_id = TypeFeedbackId::None()); |
| 755 | 756 |
| 756 // Tail call a code stub (jump). Generate the code if necessary. | 757 // Tail call a code stub (jump). Generate the code if necessary. |
| 757 void TailCallStub(CodeStub* stub); | 758 void TailCallStub(CodeStub* stub); |
| 758 | 759 |
| 759 // Return from a code stub after popping its arguments. | 760 // Return from a code stub after popping its arguments. |
| 760 void StubReturn(int argc); | 761 void StubReturn(int argc); |
| 761 | 762 |
| 762 // Call a runtime routine. | 763 // Call a runtime routine. |
| 763 void CallRuntime(const Runtime::Function* f, int num_arguments); | 764 void CallRuntime(const Runtime::Function* f, |
| 764 void CallRuntimeSaveDoubles(Runtime::FunctionId id); | 765 int num_arguments, |
| 766 SaveFPRegsMode save_doubles = kDontSaveFPRegs); |
| 767 void CallRuntimeSaveDoubles(Runtime::FunctionId id) { |
| 768 const Runtime::Function* function = Runtime::FunctionForId(id); |
| 769 CallRuntime(function, function->nargs, kSaveFPRegs); |
| 770 } |
| 765 | 771 |
| 766 // Convenience function: Same as above, but takes the fid instead. | 772 // Convenience function: Same as above, but takes the fid instead. |
| 767 void CallRuntime(Runtime::FunctionId id, int num_arguments); | 773 void CallRuntime(Runtime::FunctionId id, int num_arguments) { |
| 774 CallRuntime(Runtime::FunctionForId(id), num_arguments); |
| 775 } |
| 768 | 776 |
| 769 // Convenience function: call an external reference. | 777 // Convenience function: call an external reference. |
| 770 void CallExternalReference(ExternalReference ref, int num_arguments); | 778 void CallExternalReference(ExternalReference ref, int num_arguments); |
| 771 | 779 |
| 772 // Tail call of a runtime routine (jump). | 780 // Tail call of a runtime routine (jump). |
| 773 // Like JumpToExternalReference, but also takes care of passing the number | 781 // Like JumpToExternalReference, but also takes care of passing the number |
| 774 // of parameters. | 782 // of parameters. |
| 775 void TailCallExternalReference(const ExternalReference& ext, | 783 void TailCallExternalReference(const ExternalReference& ext, |
| 776 int num_arguments, | 784 int num_arguments, |
| 777 int result_size); | 785 int result_size); |
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| 1092 } \ | 1100 } \ |
| 1093 masm-> | 1101 masm-> |
| 1094 #else | 1102 #else |
| 1095 #define ACCESS_MASM(masm) masm-> | 1103 #define ACCESS_MASM(masm) masm-> |
| 1096 #endif | 1104 #endif |
| 1097 | 1105 |
| 1098 | 1106 |
| 1099 } } // namespace v8::internal | 1107 } } // namespace v8::internal |
| 1100 | 1108 |
| 1101 #endif // V8_IA32_MACRO_ASSEMBLER_IA32_H_ | 1109 #endif // V8_IA32_MACRO_ASSEMBLER_IA32_H_ |
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