gcc/testsuite/gcc.dg/tree-ssa/20030611-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-dom2" } */
   3
   4 extern int square (int) __attribute__ ((__const__));
   5 int
   6 shit(int a)
   7 {
   8   return square (a) + square (a);
   9
  10 }
  11
  12 /* There should be precisely one call to square.   If there is more than one,
  13    then the dominator optimizations failed to remove the redundant call.  */
  14 /* { dg-final { scan-tree-dump-times "square" 1 "dom2"} } */