1 /* { dg-do compile } */
2 /* { dg-options "-O2 -fdump-tree-dom2" } */
3 
foo(float x)4 float foo(float x)
5 {
6   x += 1;
7   x -= 1;
8   return x;
9 }
10 
11 /* We should *not* fold the arithmetic.  */
12 /* { dg-final { scan-tree-dump-times "0\\.0\[^%0\]" 0 "dom2"} } */
13