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