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[Bug tree-optimization/68775] spec2006 test case 465.tonto fails with the gcc 6.0 fortran compiler
- From: "seurer at linux dot vnet.ibm.com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 09 Dec 2015 18:48:25 +0000
- Subject: [Bug tree-optimization/68775] spec2006 test case 465.tonto fails with the gcc 6.0 fortran compiler
- Auto-submitted: auto-generated
- References: <bug-68775-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68775
--- Comment #4 from William Seurer <seurer at linux dot vnet.ibm.com> ---
(In reply to Richard Biener from comment #1)
> Can you try to bisect to an affected source file (just use
> -fno-tree-vectorize on all but one) and there to whether it is basic-block
> or loop vectorization
> (-fno-tree-loop-vectorize / -fno-tree-slp-vectorize) and specific
> loop/basic-block with -fdbg-cnt=vect_slp:N or -fdbg-cnt=vect_loop:N?
>
> Note that it seems that tonto also fails (since forever) with AVX2 on x86_64.
It still fails with just -fno-tree-vectorize but succeeds with both
-fno-tree-loop-vectorize and -fno-tree-slp-vectorize.
I am about to go through it flipping those for individual modules.