[Bug rtl-optimization/31485] C complex numbers, amd64 SSE, missed optimization opportunity

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=31485

--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Note, we could do movq %xmm0, %xmm0; movq %xmm1, %xmm1; addpd %xmm1, %xmm0 for
the #c4 first function.