1; RUN: opt < %s -instcombine -S | FileCheck %s
2
3define void @PR21651() {
4  switch i2 0, label %out [
5    i2 0, label %out
6    i2 1, label %out
7  ]
8
9out:
10  ret void
11}
12
13; CHECK-LABEL: define void @PR21651(
14; CHECK:   switch i2 0, label %out [
15; CHECK:     i2 0, label %out
16; CHECK:     i2 1, label %out
17; CHECK:   ]
18; CHECK: out:                                              ; preds = %0, %0, %0
19; CHECK:   ret void
20; CHECK: }
21