1; RUN: opt < %s -loop-unswitch -disable-output
2
3define void @init_caller_save() {
4entry:
5	br label %cond_true78
6cond_next20:		; preds = %cond_true64
7	br label %bb31
8bb31:		; preds = %cond_true64, %cond_true64, %cond_next20
9	%iftmp.29.1 = phi i32 [ 0, %cond_next20 ], [ 0, %cond_true64 ], [ 0, %cond_true64 ]		; <i32> [#uses=0]
10	br label %bb54
11bb54:		; preds = %cond_true78, %bb31
12	br i1 false, label %bb75, label %cond_true64
13cond_true64:		; preds = %bb54
14	switch i32 %i.0.0, label %cond_next20 [
15		 i32 17, label %bb31
16		 i32 18, label %bb31
17	]
18bb75:		; preds = %bb54
19	%tmp74.0 = add i32 %i.0.0, 1		; <i32> [#uses=1]
20	br label %cond_true78
21cond_true78:		; preds = %bb75, %entry
22	%i.0.0 = phi i32 [ 0, %entry ], [ %tmp74.0, %bb75 ]		; <i32> [#uses=2]
23	br label %bb54
24}
25
26