[Bug tree-optimization/103641] [11/12 regression] Severe compile time regression in SLP vectorize step

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103641

--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #6)
> How does one enable NEON? What -mcpu -mtune do you use?

I was just using -march=armv8-a -mtune=generic -mcpu=generic -O3 to see that
most of the time was in synth_mult.