[Bug middle-end/79665] gcc's signed (x*x)/200 is slower than clang's

ktkachov at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu Feb 23 09:23:00 GMT 2017


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79665

ktkachov at gcc dot gnu.org changed:

           What    |Removed                     |Added
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                 CC|                            |ktkachov at gcc dot gnu.org

--- Comment #9 from ktkachov at gcc dot gnu.org ---
Hmm, for -mcpu=cortex-a53 one of the divisions ends up being unexpanded and
generates an sdiv with this patch, whereas before it used to expand


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