[Bug tree-optimization/40542] [4.3/4.4/4.5 Regression] vectorizes access to volatile array

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2009-06-24 14:02 -------
Confirmed.

void
volarr_cpy(char *d, volatile char *s)
{
int i;
    for ( i=0; i<16; i++ )
        d[i]=s[i];
}


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|c                           |tree-optimization
     Ever Confirmed|0                           |1
  GCC build triplet|x86_64-unkown-linux         |
   GCC host triplet|x86_64-unknown-linux        |
 GCC target triplet|x86_64-unknown-linux, i386- |
                   |unknown-linux, i386-unknown-|
                   |rtems, po                   |
           Keywords|                            |wrong-code
   Last reconfirmed|0000-00-00 00:00:00         |2009-06-24 14:02:05
               date|                            |
            Summary|gcc-4.3.3 vectorizes access |[4.3/4.4/4.5 Regression]
                   |to volatile array           |vectorizes access to
                   |                            |volatile array
   Target Milestone|---                         |4.3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40542