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[Bug tree-optimization/54803] Rotates are not vectorized
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 04 Oct 2012 00:14:52 +0000
- Subject: [Bug tree-optimization/54803] Rotates are not vectorized
- Auto-submitted: auto-generated
- References: <bug-54803-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54803
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|Manual constant unfolding |Rotates are not vectorized
|breaks vectorization |
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-10-04 00:14:52 UTC ---
D.1826_10 = D.1825_9 r<< 32;
So the rotate by 32 is not being vectorizered into two shift followed by an or.