1; RUN: opt < %s -loop-reduce
2
3define void @resolve_name() nounwind uwtable ssp {
4  br label %while.cond40.preheader
5while.cond132.while.cond.loopexit_crit_edge:
6  br label %while.cond40.preheader
7while.cond40.preheader:
8  br label %while.cond40
9while.cond40:
10  %indvars.iv194 = phi i8* [ null, %while.cond40.preheader ], [ %scevgep, %while.body51 ]
11  %tmp.1 = phi i8* [ undef, %while.cond40.preheader ], [ %incdec.ptr, %while.body51 ]
12  switch i8 undef, label %while.body51 [
13    i8 0, label %if.then59
14  ]
15while.body51:                                     ; preds = %land.end50
16  %incdec.ptr = getelementptr inbounds i8* %tmp.1, i64 1
17  %scevgep = getelementptr i8* %indvars.iv194, i64 1
18  br label %while.cond40
19if.then59:                                        ; preds = %while.end
20  br i1 undef, label %if.then64, label %if.end113
21if.then64:                                        ; preds = %if.then59
22  %incdec.ptr88.tmp.2 = select i1 undef, i8* undef, i8* undef
23  br label %if.end113
24if.end113:                                        ; preds = %if.then64, %if.then59
25  %tmp.4 = phi i8* [ %incdec.ptr88.tmp.2, %if.then64 ], [ undef, %if.then59 ]
26  %tmp.4195 = ptrtoint i8* %tmp.4 to i64
27  br  label %while.cond132.preheader
28while.cond132.preheader:                          ; preds = %if.end113
29  %cmp133173 = icmp eq i8* %tmp.1, %tmp.4
30  br i1 %cmp133173, label %while.cond40.preheader, label %while.body139.lr.ph
31while.body139.lr.ph:                              ; preds = %while.cond132.preheader
32  %scevgep198 = getelementptr i8* %indvars.iv194, i64 0
33  %scevgep198199 = ptrtoint i8* %scevgep198 to i64
34  br label %while.body139
35while.body139:                                    ; preds = %while.body139, %while.body139.lr.ph
36  %start_of_var.0177 = phi i8* [ %tmp.1, %while.body139.lr.ph ], [ null, %while.body139 ]
37  br i1 undef, label %while.cond132.while.cond.loopexit_crit_edge, label %while.body139
38}
39