------- Comment #1 from rguenth at gcc dot gnu dot org 2010-04-05 10:03 -------
Confirmed. There may be (a) dup(s) for this bug. The issue seems to be that
the ra doesn't pessimize the use of callee-saved regs. Does it?
In example foo1 cprop-hardreg and dce get rid of the %rbx use, but that's
already after pro-/epilogue.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |vmakarov at redhat dot com
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |missed-optimization, ra
Last reconfirmed|0000-00-00 00:00:00 |2010-04-05 10:03:09
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43644
