------- Comment #21 from pinskia at gcc dot gnu dot org 2007-12-26 01:37
-------
As mentioned, this is really a ra issue as I showed it with integers.
reassociation does nothing except for reschedule the instructions.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Severity|normal |enhancement
GCC build triplet|i686-pc-linux-gnu |
GCC host triplet|i686-pc-linux-gnu |
Summary|[4.3 regression] |[4.3 regression]
|reassociation pass produces |reassociation causes the RA
|~30% slower matrix |to be confused
|multiplication code |
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27855
