1 /* { dg-do compile } */
2 /* { dg-options "-O1 -fdump-tree-dom2" } */
3 
4 extern int square (int) __attribute__ ((__const__));
5 int
shit(int a)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"} } */
15