[Bug tree-optimization/56918] [4.8 Regression] incorrect auto-vectorization of array initialization

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56918



Richard Biener <rguenth at gcc dot gnu.org> changed:



           What    |Removed                     |Added

----------------------------------------------------------------------------

             Status|UNCONFIRMED                 |NEW

   Last reconfirmed|                            |2013-04-11

      Known to work|                            |4.9.0

   Target Milestone|---                         |4.8.1

            Summary|incorrect                   |[4.8 Regression] incorrect

                   |auto-vectorization of array |auto-vectorization of array

                   |initialization              |initialization

     Ever Confirmed|0                           |1

      Known to fail|                            |4.8.0



--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2013-04-11 
11:42:49 UTC ---

extern void abort (void);

double data[4];

int main()

{

  int i;

  for (i = 0; i < 2 * 2; ++i)

    data[i] = ((i + 2) % 3) + 1;

  if (data[0] != 3)

    abort ();

  return 0;

}



Seems to work on trunk.