1 ; RUN: opt -codegenprepare -S < %s | FileCheck %s
2 ; CHECK: for.body.preheader
4 @N = common global i32 0, align 4
5 @E = common global i8** null, align 8
6 @B = common global i8** null, align 8
8 ; Function Attrs: nounwind
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
17 for.body.preheader: ; preds = %entry
20 for.cond.cleanup.loopexit: ; preds = %for.body
21 %add.lcssa = phi i32 [ %add, %for.body ]
22 br label %for.cond.cleanup
24 for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
25 %n.0.lcssa = phi i32 [ %0, %entry ], [ %add.lcssa, %for.cond.cleanup.loopexit ]
28 for.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