gcc/testsuite/gcc.dg/tree-ssa/scev-15.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-tree-ldist" } */
   3
   4 void
   5 foo (int *p)
   6 {
   7   unsigned short i, j;
   8
   9   for (i = 0; i < 100; i++)
  10     for (j = 1; j < 101; j++)
  11       {
  12         unsigned int index = 100 * i + j;
  13         p[index-1] = 0;
  14       }
  15 }
  16
  17 /* Loop can be transformed into builtin memset since &p[...] is SCEV.  */
  18 /* { dg-final { scan-tree-dump "builtin_memset" "ldist" } } */