[Bug tree-optimization/102124] [11/12 Regression] -ftree-loop-vectorize Causing Data To Lose Sign Bit on AARCH64 Platform

[changyp6 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102124

--- Comment #7 from Tomas Chang <changyp6 at gmail dot com> ---
(In reply to Jakub Jelinek from comment #6)
> Created attachment 51377 [details]
> gcc12-pr102124.patch
> 
> Untested fix.

After applying this patch on GCC 11.2.1 code base, I re-built GCC on my AARCH64
box (spending 36 hours) and tested. This issue is gone.

Thanks for fixing this bug so quickly!