gcc/testsuite/gcc.dg/tree-ssa/20050314-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-lim2-details --param allow-store-data-races=1" } */
   3
   4 float a[100];
   5
   6 int foo(void);
   7 float sinf (float);
   8
   9 void xxx (void)
  10 {
  11   int i, k = foo ();
  12
  13   for (i = 0; i < 100; i++)
  14     a[k] += sinf (i);
  15 }
  16
  17 /* Store motion may be applied to the assignment to a[k], since sinf
  18    cannot read nor write the memory.  */
  19
  20 /* { dg-final { scan-tree-dump-times "Moving statement" 1 "lim2" } } */