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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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| 399 // As the then-branch, but move double-value to result before shifting. | 399 // As the then-branch, but move double-value to result before shifting. |
| 400 __ xorl(result, double_value); | 400 __ xorl(result, double_value); |
| 401 __ leal(rcx, Operand(double_exponent, -HeapNumber::kMantissaBits - 1)); | 401 __ leal(rcx, Operand(double_exponent, -HeapNumber::kMantissaBits - 1)); |
| 402 __ shll_cl(result); | 402 __ shll_cl(result); |
| 403 } | 403 } |
| 404 | 404 |
| 405 __ bind(&done); | 405 __ bind(&done); |
| 406 } | 406 } |
| 407 | 407 |
| 408 | 408 |
| 409 Handle<Code> GetUnaryOpStub(int key, UnaryOpIC::TypeInfo type_info) { | |
| 410 UnaryOpStub stub(key, type_info); | |
| 411 return stub.GetCode(); | |
| 412 } | |
| 413 | |
| 414 | |
| 415 void UnaryOpStub::Generate(MacroAssembler* masm) { | 409 void UnaryOpStub::Generate(MacroAssembler* masm) { |
| 416 switch (operand_type_) { | 410 switch (operand_type_) { |
| 417 case UnaryOpIC::UNINITIALIZED: | 411 case UnaryOpIC::UNINITIALIZED: |
| 418 GenerateTypeTransition(masm); | 412 GenerateTypeTransition(masm); |
| 419 break; | 413 break; |
| 420 case UnaryOpIC::SMI: | 414 case UnaryOpIC::SMI: |
| 421 GenerateSmiStub(masm); | 415 GenerateSmiStub(masm); |
| 422 break; | 416 break; |
| 423 case UnaryOpIC::HEAP_NUMBER: | 417 case UnaryOpIC::HEAP_NUMBER: |
| 424 GenerateHeapNumberStub(masm); | 418 GenerateHeapNumberStub(masm); |
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| 670 | 664 |
| 671 OS::SNPrintF(Vector<char>(name_, kMaxNameLength), | 665 OS::SNPrintF(Vector<char>(name_, kMaxNameLength), |
| 672 "UnaryOpStub_%s_%s_%s", | 666 "UnaryOpStub_%s_%s_%s", |
| 673 op_name, | 667 op_name, |
| 674 overwrite_name, | 668 overwrite_name, |
| 675 UnaryOpIC::GetName(operand_type_)); | 669 UnaryOpIC::GetName(operand_type_)); |
| 676 return name_; | 670 return name_; |
| 677 } | 671 } |
| 678 | 672 |
| 679 | 673 |
| 680 Handle<Code> GetBinaryOpStub(int key, | |
| 681 BinaryOpIC::TypeInfo type_info, | |
| 682 BinaryOpIC::TypeInfo result_type_info) { | |
| 683 BinaryOpStub stub(key, type_info, result_type_info); | |
| 684 return stub.GetCode(); | |
| 685 } | |
| 686 | |
| 687 | |
| 688 void BinaryOpStub::GenerateTypeTransition(MacroAssembler* masm) { | 674 void BinaryOpStub::GenerateTypeTransition(MacroAssembler* masm) { |
| 689 __ pop(rcx); // Save return address. | 675 __ pop(rcx); // Save return address. |
| 690 __ push(rdx); | 676 __ push(rdx); |
| 691 __ push(rax); | 677 __ push(rax); |
| 692 // Left and right arguments are now on top. | 678 // Left and right arguments are now on top. |
| 693 // Push this stub's key. Although the operation and the type info are | 679 // Push this stub's key. Although the operation and the type info are |
| 694 // encoded into the key, the encoding is opaque, so push them too. | 680 // encoded into the key, the encoding is opaque, so push them too. |
| 695 __ Push(Smi::FromInt(MinorKey())); | 681 __ Push(Smi::FromInt(MinorKey())); |
| 696 __ Push(Smi::FromInt(op_)); | 682 __ Push(Smi::FromInt(op_)); |
| 697 __ Push(Smi::FromInt(operands_type_)); | 683 __ Push(Smi::FromInt(operands_type_)); |
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| 5127 __ Drop(1); | 5113 __ Drop(1); |
| 5128 __ ret(2 * kPointerSize); | 5114 __ ret(2 * kPointerSize); |
| 5129 } | 5115 } |
| 5130 | 5116 |
| 5131 | 5117 |
| 5132 #undef __ | 5118 #undef __ |
| 5133 | 5119 |
| 5134 } } // namespace v8::internal | 5120 } } // namespace v8::internal |
| 5135 | 5121 |
| 5136 #endif // V8_TARGET_ARCH_X64 | 5122 #endif // V8_TARGET_ARCH_X64 |
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