------- Comment #1 from rguenth at gcc dot gnu dot org  2006-12-09 11:02 -------
This is because for the first line

(*((char *)(p) + 0) = (char) ((dat))       & 0xff)

we do the len + 1 in unsigned char type (we recognize x & 0xff as a
cast to unsigned char).  So we have two additions and cannot figure out
in the end that one is redundant.

(we might have a dup for this)


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu dot
                   |                            |org
           Severity|normal                      |enhancement
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
  GCC build triplet|i586-suse-linux             |
   GCC host triplet|i586-suse-linux             |
 GCC target triplet|i586-suse-linux             |
           Keywords|                            |missed-optimization
   Last reconfirmed|0000-00-00 00:00:00         |2006-12-09 11:02:10
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30128

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