[Bug tree-optimization/65930] Reduction with sign-change not handled

[tnfchris at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65930

--- Comment #26 from Tamar Christina <tnfchris at gcc dot gnu.org> ---

> At least for this one there's the comment

> /* ??? At present we don't treat the int8_t and int16_t loops as
>   reductions.  */
>
> but I guess it's the same for the rest.  You have to fixup the testcases
> yourself - they are too complex and fragile.

Ah yeah fair enough. Thanks!

> > I've also noticed a few ICEs on SPEC but haven't pinpointed it to this commit
> > yet. Running a bisect.
>
> Might be PR92205, I'm testing a patch for that.

Ah yeah it's that one. Thanks. I just noticed it so didn't get a chance to find
an existing report. I'll follow that one. Thanks!