[Bug rtl-optimization/29589] incorrect conversion of (ior (ashiftrt (plus ...))) in combine.c

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #4 from pinskia at gcc dot gnu dot org  2007-06-07 21:00 -------
And here is a testcase which makes this reproduciable on the trunk (on
powerpc-linux):
extern void abort (void);
extern void exit (int);

_Bool a;

int foo ()
{
  int b;
  int c = a;
  c = __builtin_abs(c);
  c = c-1;
  c = (c) >>31;
  b = c | 60;
  return b;
}

int main(int argc, char **argv)
{
    a = 1;
    if (foo() != 0x3c)
       abort();
    exit(0);
}


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
 GCC target triplet|                            |powerpc-*-*
           Keywords|                            |wrong-code
   Last reconfirmed|0000-00-00 00:00:00         |2007-06-07 21:00:43
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29589