1; RUN: opt -S -mtriple=i386-unknown-freebsd -mcpu=i486 -loop-vectorize < %s
2
3define i32 @PR14639(i8* nocapture %s, i32 %len) nounwind {
4entry:
5  %cmp4 = icmp sgt i32 %len, 0
6  br i1 %cmp4, label %for.body, label %for.end
7
8for.body:                                         ; preds = %entry, %for.body
9  %i.06 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
10  %r.05 = phi i32 [ %xor, %for.body ], [ 0, %entry ]
11  %arrayidx = getelementptr inbounds i8, i8* %s, i32 %i.06
12  %0 = load i8, i8* %arrayidx, align 1
13  %conv = sext i8 %0 to i32
14  %xor = xor i32 %conv, %r.05
15  %inc = add nsw i32 %i.06, 1
16  %exitcond = icmp eq i32 %inc, %len
17  br i1 %exitcond, label %for.end, label %for.body
18
19for.end:                                          ; preds = %for.body, %entry
20  %r.0.lcssa = phi i32 [ 0, %entry ], [ %xor, %for.body ]
21  ret i32 %r.0.lcssa
22}
23