http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36884
Georg-Johann Lay <gjl at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.7.0
--- Comment #5 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2011-07-05
13:22:53 UTC ---
I had a look in ifcvt.c.
Obviously, noce_try_sign_mask does it's work unconditionally and does not take
into account costs. It appears that it assumes that cheap barrel shifter is
available as on most 32-bit machines.
