[Bug tree-optimization/33134] [4.3 Regression] ICE in set_value_range, at tree-vrp.c:325

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2007-08-21 12:09 -------
Confirmed.  Value numbering constant propagates

 c1 = 128;

to

 c1.1_6 = (signed char)c1;

and creates a constant with overflow flag set which confuses VRP signed
overflow
handling.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |iant at google dot com,
                   |                            |dberlin at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-08-21 12:09:29
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33134