https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81739
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
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Keywords| |missed-optimization
Target| |x86_64-*-*, i?86-*-*
Component|tree-optimization |target
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think we do this if the result is used in a != 0 equality compare, your case
is much harder generally. We do have a cmpmem optab though, thus the target(s)
could do better here.
