https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71836
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-07-12
CC| |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. The loop is only unrolled late and only FRE knows how to lookup
from *.LC0. DOM only applies CSE to literally equivalent stores (that's
a quite hard limit which also makes it quite more efficient than FRE).
Not sure if more FRE passes are really desirable.
