1; RUN: opt -loop-simplify -S %s | FileCheck %s
2target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
3target triple = "powerpc64-bgq-linux"
4
5define fastcc void @do_update_md([3 x float]* nocapture readonly %x) #0 {
6entry:
7  br i1 undef, label %if.end365, label %lor.lhs.false134
8
9lor.lhs.false134:                                 ; preds = %entry
10  br i1 undef, label %lor.lhs.false138, label %if.end365
11
12lor.lhs.false138:                                 ; preds = %lor.lhs.false134
13  br i1 undef, label %lor.lhs.false142, label %if.end365
14
15lor.lhs.false142:                                 ; preds = %lor.lhs.false138
16  br i1 undef, label %for.body276.lr.ph, label %if.end365
17
18for.body276.lr.ph:                                ; preds = %lor.lhs.false142
19  switch i16 undef, label %if.then288 [
20    i16 4, label %for.body344
21    i16 2, label %for.body344
22  ]
23
24if.then288:                                       ; preds = %for.body276.lr.ph
25  br label %for.body305
26
27for.body305:                                      ; preds = %for.body305, %if.then288
28  br label %for.body305
29
30for.body344:                                      ; preds = %for.body344, %for.body276.lr.ph, %for.body276.lr.ph
31  %indvar = phi i64 [ %indvar.next, %for.body344 ], [ 0, %for.body276.lr.ph ]
32  %indvars.iv552 = phi i64 [ %indvars.iv.next553, %for.body344 ], [ 0, %for.body276.lr.ph ], [ 0, %for.body276.lr.ph ]
33  %indvars.iv.next553 = add nuw nsw i64 %indvars.iv552, 1
34  %indvar.next = add i64 %indvar, 1
35  br label %for.body344
36
37; CHECK-LABEL: @do_update_md
38; CHECK: %indvars.iv552 = phi i64 [ %indvars.iv.next553, %for.body344 ], [ 0, %for.body344.preheader ]
39; CHECK: ret
40
41if.end365:                                        ; preds = %lor.lhs.false142, %lor.lhs.false138, %lor.lhs.false134, %entry
42  ret void
43}
44
45attributes #0 = { nounwind }
46
47