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Issue 53573004: Introduce orps for IA32/X64 (Closed) Base URL: git://github.com/v8/v8.git@upstream
Patch Set: Created 7 years, 1 month ago
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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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1764 __ j(condition, &return_left, Label::kNear); 1764 __ j(condition, &return_left, Label::kNear);
1765 __ jmp(&return_right, Label::kNear); 1765 __ jmp(&return_right, Label::kNear);
1766 1766
1767 __ bind(&check_zero); 1767 __ bind(&check_zero);
1768 XMMRegister xmm_scratch = double_scratch0(); 1768 XMMRegister xmm_scratch = double_scratch0();
1769 __ xorps(xmm_scratch, xmm_scratch); 1769 __ xorps(xmm_scratch, xmm_scratch);
1770 __ ucomisd(left_reg, xmm_scratch); 1770 __ ucomisd(left_reg, xmm_scratch);
1771 __ j(not_equal, &return_left, Label::kNear); // left == right != 0. 1771 __ j(not_equal, &return_left, Label::kNear); // left == right != 0.
1772 // At this point, both left and right are either 0 or -0. 1772 // At this point, both left and right are either 0 or -0.
1773 if (operation == HMathMinMax::kMathMin) { 1773 if (operation == HMathMinMax::kMathMin) {
1774 __ orpd(left_reg, right_reg); 1774 __ orps(left_reg, right_reg);
1775 } else { 1775 } else {
1776 // Since we operate on +0 and/or -0, addsd and andsd have the same effect. 1776 // Since we operate on +0 and/or -0, addsd and andsd have the same effect.
1777 __ addsd(left_reg, right_reg); 1777 __ addsd(left_reg, right_reg);
1778 } 1778 }
1779 __ jmp(&return_left, Label::kNear); 1779 __ jmp(&return_left, Label::kNear);
1780 1780
1781 __ bind(&check_nan_left); 1781 __ bind(&check_nan_left);
1782 __ ucomisd(left_reg, left_reg); // NaN check. 1782 __ ucomisd(left_reg, left_reg); // NaN check.
1783 __ j(parity_even, &return_left, Label::kNear); 1783 __ j(parity_even, &return_left, Label::kNear);
1784 __ bind(&return_right); 1784 __ bind(&return_right);
1785 __ movsd(left_reg, right_reg); 1785 __ movaps(left_reg, right_reg);
1786 1786
1787 __ bind(&return_left); 1787 __ bind(&return_left);
1788 } 1788 }
1789 } 1789 }
1790 1790
1791 1791
1792 void LCodeGen::DoArithmeticD(LArithmeticD* instr) { 1792 void LCodeGen::DoArithmeticD(LArithmeticD* instr) {
1793 XMMRegister left = ToDoubleRegister(instr->left()); 1793 XMMRegister left = ToDoubleRegister(instr->left());
1794 XMMRegister right = ToDoubleRegister(instr->right()); 1794 XMMRegister right = ToDoubleRegister(instr->right());
1795 XMMRegister result = ToDoubleRegister(instr->result()); 1795 XMMRegister result = ToDoubleRegister(instr->result());
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5455 FixedArray::kHeaderSize - kPointerSize)); 5455 FixedArray::kHeaderSize - kPointerSize));
5456 __ bind(&done); 5456 __ bind(&done);
5457 } 5457 }
5458 5458
5459 5459
5460 #undef __ 5460 #undef __
5461 5461
5462 } } // namespace v8::internal 5462 } } // namespace v8::internal
5463 5463
5464 #endif // V8_TARGET_ARCH_X64 5464 #endif // V8_TARGET_ARCH_X64
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