gcc/testsuite/gcc.dg/vect/no-scevccp-pr86725-1.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "-O -w" } */
   3
   4 int foo;
   5 int
   6 nr (int xe, int z)
   7 {
   8   int oo, wo = 0;
   9
  10   for (oo = 0; oo < 4; ++oo)
  11     {
  12       int qq;
  13
  14       int old_wo = wo;
  15       for (qq = 0; qq < 2; ++qq)
  16         {
  17           wo = z + qq + old_wo;
  18           xe += wo;
  19         }
  20     }
  21   foo = wo;
  22   return xe;
  23 }
  24
  25 /* { dg-final { scan-tree-dump-not "double reduction: wo" "vect" } } */
  26 /* { dg-final { scan-tree-dump-not "OUTER LOOP VECTORIZED" "vect" } } */