[Bug tree-optimization/61634] [4.8/4.9/4.10 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-06-28
                 CC|                            |trippels at gcc dot gnu.org
   Target Milestone|---                         |4.8.4
            Summary|[4.8.3/4.9.1] ICE in in     |[4.8/4.9/4.10 Regression]
                   |vect_get_vec_def_for_operan |ICE in in
                   |d, at                       |vect_get_vec_def_for_operan
                   |tree-vect-stmts.c:1423      |d, at
                   |                            |tree-vect-stmts.c:1423
     Ever confirmed|0                           |1

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Confirmed.

markus@x4 tmp % cat autocorr.i
int a, b, c, d;
short *e;
void fn1 (int p1[], int p2, int p3[], int p4[], int p5[], int *p6)
{
  int f;
  c = *p1;
  d = *p5;
  (void)p6;
  for (; a; a--)
    {
      f = *e >> 2;
      *e++ = f;
      b += f * f;
      f = *e >> 2;
      *e++ = f;
    }
  p4[0] = p3[0];
  for (;; p2--)
    ;
}

markus@x4 tmp % gcc -O3 -fwrapv -c autocorr.i
autocorr.i: In function ‘fn1’:
autocorr.i:3:6: internal compiler error: in vect_get_vec_def_for_operand, at
tree-vect-stmts.c:1449
 void fn1 (int p1[], int p2, int p3[], int p4[], int p5[], int *p6)
      ^