https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49358

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |5.3.1, 6.0
   Target Milestone|6.0                         |4.9.4
            Summary|[4.9/5/6 Regression] RA     |[4.9 Regression] RA
                   |regressed for SSE 2 operand |regressed for SSE 2 operand
                   |math                        |math

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
-O2 with GCC 5.3 and 6 generate:

        movapd  %xmm0, %xmm1
        mulsd   %xmm0, %xmm1
        mulsd   %xmm0, %xmm1
        mulsd   %xmm1, %xmm0
        ret

Reply via email to