https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105338
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Last reconfirmed| |2022-04-22
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think none is more canonical so I wonder if there's an easy way to have ifcvt
recognize both? But yes, it's probably a duplicate, but at least for x86 and
with complete testcases.
Note one of the issues is that creating/removing forwarders can end up swapping
things. To avoid this (for GCC 13) we can try to not as aggressively remove
them (basically keep critical edges split) and maybe mark (temporarily) created
forwarders with a flag so that CFG cleanup can pick the "correct" one when
it is used as vehicle to remove them again (as in this case).
