http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56309
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-15
07:14:44 UTC ---
Yeah. We need to either find another way how to present vectorizer with the
ifconverted statement (perhaps similar to how pattern matching works, I think
if-conversion only handles inner-most loops, so maybe just as an alternative
gimple_seq for the single bb of the loop body?), or we need some kind of
if-unconversion pass.
See the http://gcc.gnu.org/ml/gcc-patches/2012-11/msg01659.html patch which
contains much more limited version of if-unconversion, unfortunately it is
going to be harder to handle more complex conditions efficiently.
