https://bugs.kde.org/show_bug.cgi?id=397089
--- Comment #3 from Tomas Trnka <tomastr...@gmx.com> --- I don't know if there's any special assembly syntax to force one or the other. I wouldn't be surprised if there's not, because these three-register variants are functionally equivalent (except for the direction). I have found that my GNU as (2.29.1) reliably picks opcode 11h when the first operand is xmm8+ and the third operand is xmm[0-7]. All other combinations seem to use opcode 10h. (No idea why. I just bruteforced all combinations). This is probably the reason why the three-register opcode 11h version is somewhat less common (and thus why most of the FP code out there seems to mostly work). 0: c5 6b 10 c1 vmovsd %xmm1,%xmm2,%xmm8 0: c5 6b 11 c1 vmovsd %xmm8,%xmm2,%xmm1 -- You are receiving this mail because: You are watching all bug changes.
