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[Bug fortran/68600] Inlined MATMUL is too slow.
- From: "dominiq at lps dot ens.fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 09 Apr 2016 10:14:08 +0000
- Subject: [Bug fortran/68600] Inlined MATMUL is too slow.
- Auto-submitted: auto-generated
- References: <bug-68600-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68600
--- Comment #10 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> I think you are seeing the effects of inefficiencies of assumed-shape arrays.
>
> If you want to use matmul on very small matrix sizes, it is best to
> use fixed-size explicit arrays.
Then IMO the matmul inlining should be restricted to fixed-size explicit
arrays. Could this be done before the release of gcc-6?