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1; RUN: opt -codegenprepare -S < %s | FileCheck %s
2; CHECK: for.body.preheader
3
4@N = common global i32 0, align 4
5@E = common global i8** null, align 8
6@B = common global i8** null, align 8
7
8; Function Attrs: nounwind
9define i32 @foo() {
10entry:
11  %0 = load i32, i32* @N, align 4
12  %1 = load i8**, i8*** @E, align 8
13  %2 = load i8**, i8*** @B, align 8
14  %cmp7 = icmp eq i8** %2, %1
15  br i1 %cmp7, label %for.cond.cleanup, label %for.body.preheader
16
17for.body.preheader:                               ; preds = %entry
18  br label %for.body
19
20for.cond.cleanup.loopexit:                        ; preds = %for.body
21  %add.lcssa = phi i32 [ %add, %for.body ]
22  br label %for.cond.cleanup
23
24for.cond.cleanup:                                 ; preds = %for.cond.cleanup.loopexit, %entry
25  %n.0.lcssa = phi i32 [ %0, %entry ], [ %add.lcssa, %for.cond.cleanup.loopexit ]
26  ret i32 %n.0.lcssa
27
28for.body:                                         ; preds = %for.body.preheader, %for.body
29  %I.09 = phi i8** [ %incdec.ptr, %for.body ], [ %2, %for.body.preheader ]
30  %n.08 = phi i32 [ %add, %for.body ], [ %0, %for.body.preheader ]
31  %3 = load i8*, i8** %I.09, align 8
32  %call = tail call i32 @map(i8* %3)
33  %add = add nsw i32 %call, %n.08
34  %incdec.ptr = getelementptr inbounds i8*, i8** %I.09, i64 1
35  %cmp = icmp eq i8** %incdec.ptr, %1
36  br i1 %cmp, label %for.cond.cleanup.loopexit, label %for.body
37}
38
39declare i32 @map(i8*)
40