Re: [PATCH] Change DO loop translation, avoid undefined overflow and repeated step sign tests

[Tobias Burnus]

Richard Biener wrote:
                             if (D.1912 < 0)
                               {
                                 if (D.1911 > D.1910)
                                   {
                                     goto L.6;
                                   }
                                 else
                                   {
                                     countm1.6 = ((unsigned int) D.1910 -
(unsigned int) D.1911) / -(unsigned int) D.1912;
                                   }
                               }
                             else
                               {
                                 if (D.1911 < D.1910)
                                   {
                                     goto L.6;
                                   }
                                 else
                                   {
                                     countm1.6 = ((unsigned int) D.1911 -
(unsigned int) D.1910) / (unsigned int) D.1912;
                                   }
                               }

That look better.


Bootstrapped on x86_64-unknown-linux-gnu, regtests running.
Ok for trunk?

2013-01-16  Richard Biener  <rguent...@suse.de>

        fortran/

I assume you mean 42108. (PR42131 caused the 'regression' and is a clone 
of 42108; PRs 52865/53957 are related.)

The patch is OK. Thanks!

Tobias