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comparison src/cpu/x86/vm/macroAssembler_x86.hpp @ 7477:038dd2875b94

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8005419: Improve intrinsics code performance on x86 by using AVX2 Summary: use 256bit vpxor,vptest instructions in String.compareTo() and equals() intrinsics. Reviewed-by: twisti
author kvn
date Tue, 08 Jan 2013 11:30:51 -0800
parents 00af3a3a8df4
children b30b3c2a0cf2 db9981fd3124
comparison
equal deleted inserted replaced
7476:ffa87474d7a4 7477:038dd2875b94
1009 Assembler::vpxor(dst, nds, src, vector256); 1009 Assembler::vpxor(dst, nds, src, vector256);
1010 else 1010 else
1011 Assembler::vxorpd(dst, nds, src, vector256); 1011 Assembler::vxorpd(dst, nds, src, vector256);
1012 } 1012 }
1013 1013
1014 // Simple version for AVX2 256bit vectors
1015 void vpxor(XMMRegister dst, XMMRegister src) { Assembler::vpxor(dst, dst, src, true); }
1016 void vpxor(XMMRegister dst, Address src) { Assembler::vpxor(dst, dst, src, true); }
1017
1014 // Move packed integer values from low 128 bit to hign 128 bit in 256 bit vector. 1018 // Move packed integer values from low 128 bit to hign 128 bit in 256 bit vector.
1015 void vinserti128h(XMMRegister dst, XMMRegister nds, XMMRegister src) { 1019 void vinserti128h(XMMRegister dst, XMMRegister nds, XMMRegister src) {
1016 if (UseAVX > 1) // vinserti128h is available only in AVX2 1020 if (UseAVX > 1) // vinserti128h is available only in AVX2
1017 Assembler::vinserti128h(dst, nds, src); 1021 Assembler::vinserti128h(dst, nds, src);
1018 else 1022 else