gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-91.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-tree-fre4" } */
   3
   4 extern void foo(void);
   5
   6 static int a[2], b, *c[2];
   7
   8 int main() {
   9   for (b = 0; b < 2; b++)
  10     c[b] = &a[1];
  11   if (!c[0])
  12     foo();
  13   return 0;
  14 }
  15
  16 /* Even when vectorizing we should eliminate the call to foo.  */
  17 /* { dg-final { scan-tree-dump-not "foo" "fre4" } } */