https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121662
Hongtao Liu <liuhongt at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |liuhongt at gcc dot gnu.org
--- Comment #2 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
Maybe x86 should define TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE to return
false.
I have a patch to define TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE and
TARGET_VECTORIZE_CONDITIONAL_OPERATION_IS_EXPENSIVE(both return false), but
trigger STLF stall since masked store can't be forwarded(I guess it's only
related to TARGET_VECTORIZE_CONDITIONAL_OPERATION_IS_EXPENSIVE).
