[Bug middle-end/82567] [6/7/8] gfortran takes a long time to compile a simple implied-do with -Optimization.

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82567

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-10-16
     Ever confirmed|0                           |1

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed. The test compiles in a fraction of a second with
-fno-frontend-optimize.

The change occurred between revisions r197010 (2013-03-23, fast) and r197238
(2013-03-29, slow), likely r197217.