[Bug middle-end/30442] Expanded array initialization can use memset builtin function

pinskia at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Sun Jan 14 05:01:00 GMT 2007



------- Comment #2 from pinskia at gcc dot gnu dot org  2007-01-14 05:01 -------
This is a bit complex, we could use a loop reroller to roll this into a loop
and then transform that loop into memset for test1.
For test2 it is simple and a patch was presented at last year's gcc summit (and
I posted an older version of that patch a year or two ago).


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
  GCC build triplet|i686-pc-linux-gnu           |
   GCC host triplet|i686-pc-linux-gnu           |
 GCC target triplet|i686-pc-linux-gnu           |
           Keywords|                            |missed-optimization
   Last reconfirmed|0000-00-00 00:00:00         |2007-01-14 05:01:04
               date|                            |
            Summary|Array initialization can use|Expanded array
                   |memset builtin function     |initialization can use
                   |                            |memset builtin function


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30442



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