[Bug middle-end/88784] Middle end is missing some optimizations about unsigned
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Thu Jan 10 11:16:00 GMT 2019
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88784
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-01-10
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. Similar for singed and X > Y && X != INT_MIN, etc.
ifcombine is one place to fix (maybe_fold_and_comparisons and friends),
match.pd in case this gets lowered to BIT_AND/IOR.
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