[Bug tree-optimization/20643] [4.0/4.1/4.2 Regression] Tree loop optimizer does worse job than RTL loop optimizer

[steven at gcc dot gnu dot org]

------- Comment #12 from steven at gcc dot gnu dot org  2006-07-16 13:52 -------
The test case in comment #11 looks like a classic store motion opportunity to
me.  GCC 3.3 performs the store motion, GCC 4.2 r115467 does not.

Zdenek, I thought tree-ssa-lim should be able to do store motion in loops?


-- 

steven at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rakdver at gcc dot gnu dot
                   |                            |org
   Last reconfirmed|2006-02-01 04:41:41         |2006-07-16 13:52:59
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20643