https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62112
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-08-13
Ever confirmed|0 |1
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
We don't aggressively "lower" memcpy even if we could and in this case we
miss the point where x and y become "dead" (you don't call free()).
Note that the issue Marc mentions is simply that we don't DSE calls
(usually not important apart from for memcpy like builtins). It shouldn't
be terribly hard to add this though.
Confirmed.
