1 /* PR tree-optimization/25501
2    The PHI merge pass used to try to merge PHI nodes that cannot
3    actually merged, causing a segfault later.  Make sure that does not
4    happen any more.  */
5 
6 /* { dg-options "-O1 -fdump-tree-mergephi1" } */
7 
8 int
foo(int a)9 foo (int a)
10 {
11   int b;
12   int c;
13   int d;
14 
15   if (a == 2)
16     b = 3;
17   else
18     b = 5;
19 
20   c = 7;
21 
22   d = 11;
23 
24   for (;;)
25     {
26       if (d == 5)
27 	break;
28 
29       d = b;
30     }
31 
32   return 13;
33 }
34 
35 /* { dg-final { scan-tree-dump-times "Removing basic block" 0 "mergephi1"} } */
36