https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91539
Alexander Monakov <amonakov at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |amonakov at gcc dot gnu.org
--- Comment #1 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
No, -std=c99 or -std=c11 (as opposed to =gnu99/gnu11) disables fp contraction.
If you don't specify any -std= option, -std=gnu11 is default and thus
contraction to fma is enabled.
What are the exact compiler options that give you fmas from autovectorization?
I cannot reproduce this behavior.
