https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97770
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |rsandifo at gcc dot gnu.org
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
Hmm, but
DEF_INTERNAL_INT_FN (POPCOUNT, ECF_CONST | ECF_NOTHROW, popcount, unary)
so there's clearly a mismatch between either the vectorizers interpretation
or the optab. But as far as I can see this is not a direct internal fn so
vectorizable_internal_function shouldn't apply and I do not see the x86
backend handle POPCOUNT in the vectorizable function target hook.
So w/o a compiler capable I can't trace how the vectorizer vectorizes this
and thus I have no idea where it goes wrong ...
