1; RUN: opt < %s -simplifycfg -S | \
2; RUN:   not grep " switch"
3; PR10131
4
5; ModuleID = '<stdin>'
6target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
7target triple = "i386-pc-linux-gnu"
8
9define i32 @t(i32 %m) nounwind readnone {
10entry:
11  switch i32 %m, label %sw.bb4 [
12    i32 0, label %sw.bb0
13    i32 1, label %sw.bb1
14    i32 2, label %sw.bb2
15    i32 3, label %sw.bb3
16  ]
17
18sw.bb0:                                           ; preds = %entry
19  br label %return
20
21sw.bb1:                                           ; preds = %entry
22  br label %return
23
24sw.bb2:                                           ; preds = %entry
25  br label %return
26
27sw.bb3:                                           ; preds = %entry
28  br label %return
29
30sw.bb4:                                           ; preds = %entry
31  br label %return
32
33return:                                           ; preds = %entry, %sw.bb4, %sw.bb3, %sw.bb2, %sw.bb1
34  %retval.0 = phi i32 [ 4, %sw.bb4 ], [ 3, %sw.bb3 ], [ 2, %sw.bb2 ], [ 1, %sw.bb1 ], [ 0, %sw.bb0 ]
35  ret i32 %retval.0
36}
37