https://sourceware.org/bugzilla/show_bug.cgi?id=29527
--- Comment #3 from Jan Beulich <jbeulich at suse dot com> --- (In reply to H.J. Lu from comment #2) > (In reply to Jan Beulich from comment #0) > > cvtsi2ss (%rax), %xmm0 > > vcvtsi2ss (%rax), %xmm0, %xmm0 > > vcvtusi2ss (%rax), %xmm0, %xmm0 > > > > They default to 32 bits because when SSE was introduced, it was 32-bit only. How does "32-bit only" at introduction time matter for 64-bit? When 64-bit was introduced, disambiguation should have been required (and 32-bit code would have remained unaffected). In fact the lack thereof had allowed a gcc bug to go unnoticed for quite some time. -- You are receiving this mail because: You are on the CC list for the bug.