http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53676
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-06-14
Target Milestone|--- |4.7.2
Summary|[4.7/4.8 regression] |[4.7/4.8 regression] empty
|constant folding |loop is not always removed
|regression, shown as |now
|slowdown as measured by |
|Adobe's C++Benchmark |
Ever Confirmed|0 |1
Severity|major |normal
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-06-14
23:13:14 UTC ---
Empty loop could get rid of the loop in previous versions of GCC. That was
replaced with cdce but that did not get rid of the empty loop. This is a minor
issue really because this benchmark is just making sure you got rid of an semi
empty loop.
