gcc/testsuite/gcc.dg/tree-ssa/ldist-22.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O3 -fdump-tree-ldist-details" } */
   3
   4 extern void abort (void);
   5
   6 int a[1024], b[1024];
   7
   8 void __attribute__((noinline,noclone))
   9 foo (void)
  10 {
  11   int i;
  12   for (i = 0; i < 1024; ++i)
  13     {
  14       a[i] = 0;
  15       if (i > 100)
  16         b[i] = i;
  17     }
  18 }
  19
  20 int main()
  21 {
  22   b[100] = 1;
  23   foo ();
  24   if (b[100] != 1 || b[101] != 101)
  25     abort ();
  26   if (a[0] != 0 || a[101] != 0)
  27     abort ();
  28   return 0;
  29 }
  30
  31 /* { dg-final { scan-tree-dump "generated memset zero" "ldist" } } */