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[Bug tree-optimization/19049] not vectorizing a fortran loop
- From: "tkoenig at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 9 Nov 2010 20:07:51 +0000
- Subject: [Bug tree-optimization/19049] not vectorizing a fortran loop
- Auto-submitted: auto-generated
- References: <bug-19049-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19049
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2007-07-09 07:42:10 |2010-11-09
CC| |tkoenig at gcc dot gnu.org
Known to fail| |4.6.0
--- Comment #8 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2010-11-09 20:07:30 UTC ---
Still working on this?
$ gfortran -S -O3 -ftree-vectorizer-verbose=8 vect.f
vect.f:9: note: not vectorized: inner-loop count not invariant.
vect.f:10: note: Detected single element interleaving *a_107(D)[D.1623_106]
step 8
vect.f:10: note: Detected single element interleaving *b_111(D)[D.1620_110]
step 8
vect.f:10: note: not vectorized: complicated access pattern.
vect.f:1: note: vectorized 0 loops in function.