[Bug c/118097] [15 regression] recent bug with -O2, but not -O1

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118097

--- Comment #2 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to David Binderman from comment #1)
> Reduced C code:
> 

Both locally and on godbolt, I see the same output for -O0 and -O3 for this.