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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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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3719 | 3719 |
3720 | 3720 |
3721 void LCodeGen::DoMathLog(LMathLog* instr) { | 3721 void LCodeGen::DoMathLog(LMathLog* instr) { |
3722 ASSERT(instr->value()->Equals(instr->result())); | 3722 ASSERT(instr->value()->Equals(instr->result())); |
3723 XMMRegister input_reg = ToDoubleRegister(instr->value()); | 3723 XMMRegister input_reg = ToDoubleRegister(instr->value()); |
3724 XMMRegister xmm_scratch = double_scratch0(); | 3724 XMMRegister xmm_scratch = double_scratch0(); |
3725 Label positive, done, zero; | 3725 Label positive, done, zero; |
3726 __ xorps(xmm_scratch, xmm_scratch); | 3726 __ xorps(xmm_scratch, xmm_scratch); |
3727 __ ucomisd(input_reg, xmm_scratch); | 3727 __ ucomisd(input_reg, xmm_scratch); |
3728 __ j(above, &positive, Label::kNear); | 3728 __ j(above, &positive, Label::kNear); |
3729 __ j(equal, &zero, Label::kNear); | 3729 __ j(not_carry, &zero, Label::kNear); |
3730 ExternalReference nan = | 3730 ExternalReference nan = |
3731 ExternalReference::address_of_canonical_non_hole_nan(); | 3731 ExternalReference::address_of_canonical_non_hole_nan(); |
3732 Operand nan_operand = masm()->ExternalOperand(nan); | 3732 Operand nan_operand = masm()->ExternalOperand(nan); |
3733 __ movsd(input_reg, nan_operand); | 3733 __ movsd(input_reg, nan_operand); |
3734 __ jmp(&done, Label::kNear); | 3734 __ jmp(&done, Label::kNear); |
3735 __ bind(&zero); | 3735 __ bind(&zero); |
3736 ExternalReference ninf = | 3736 ExternalReference ninf = |
3737 ExternalReference::address_of_negative_infinity(); | 3737 ExternalReference::address_of_negative_infinity(); |
3738 Operand ninf_operand = masm()->ExternalOperand(ninf); | 3738 Operand ninf_operand = masm()->ExternalOperand(ninf); |
3739 __ movsd(input_reg, ninf_operand); | 3739 __ movsd(input_reg, ninf_operand); |
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5586 FixedArray::kHeaderSize - kPointerSize)); | 5586 FixedArray::kHeaderSize - kPointerSize)); |
5587 __ bind(&done); | 5587 __ bind(&done); |
5588 } | 5588 } |
5589 | 5589 |
5590 | 5590 |
5591 #undef __ | 5591 #undef __ |
5592 | 5592 |
5593 } } // namespace v8::internal | 5593 } } // namespace v8::internal |
5594 | 5594 |
5595 #endif // V8_TARGET_ARCH_X64 | 5595 #endif // V8_TARGET_ARCH_X64 |
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