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From: "rguenther at suse dot de" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/62283] basic-block vectorization fails
Date: Mon, 01 Sep 2014 14:41:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62283

--- Comment #15 from rguenther at suse dot de <rguenther at suse dot de> ---
On Mon, 1 Sep 2014, ro at CeBiTec dot Uni-Bielefeld.DE wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62283
> 
> --- Comment #14 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> ---
> > --- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> ---
> > (In reply to Rainer Orth from comment #12)
> >> Created attachment 33426 [details]
> >> vect dump
> >> 
> >> Sure, I meant to but forgot...
> >
> > Ok:
> >
> > /vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/vect/vect-33.c:19:3: note:
> > vectorization factor = 8
> >
> > so we have a vector of 8 chars, v8qi but vect64 is not enabled for SPARC?
> > (target-supports.exp).  The { ! vect64 } / && vect64 cases were supposed
> > to catch the case where vectorization uses v8qi (instead of the more
> > common v16qi).
> >
> > So ... can you test enabling vect64 for sparc?
> 
> While it works for the test at hand, the two other tests using vect64
> (bb-slp-11.c and bb-slp-26.c) now FAIL:
> 
> FAIL: gcc.dg/vect/bb-slp-11.c scan-tree-dump-times slp2 "basic block
> vectorized" 1
> FAIL: gcc.dg/vect/bb-slp-26.c scan-tree-dump-times slp1 "basic block
> vectorized" 1

I wonder about the dump files for those...  also if they fail on the
other vect64 target (arm-little-endian with NEON).

Richard.