[Bug tree-optimization/94834] Failure to optimize loop bswap pattern
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Apr 29 07:08:36 GMT 2020
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94834
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Keywords| |missed-optimization
Last reconfirmed| |2020-04-29
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. We have a pass that would grok the unrolled form but unrolling
happens too late (if at all) for it to trigger. Not sure if we should
try to pattern-match this (or other reductions) in loop distribution.
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