[Patch, Fortran] PR 57160: short-circuit IF only with -ffrontend-optimize

[Janus Weil]

2018-07-24 20:46 GMT+02:00 Janus Weil <janus@gcc.gnu.org>:
> 2018-07-23 23:05 GMT+02:00 Fritz Reese <fritzoreese@gmail.com>:
>> Otherwise looks OK.
>
> Thanks for the review. The new patch also disables the warnings from
> PR85599 if -ffrontend-optimize is not given, as noted by Dominique.
>
> The attached is what I'd like to commit (and is regtesting now), but
> I'll wait for further comments of course.

Regtesting showed one failure in inline_matmul_23, which is fixed by
adding -ffrontend-optimize. Updated patch attached.

Cheers,
Janus
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