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1; RUN: opt < %s -gvn | llvm-dis
2target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
3target triple = "i386-apple-darwin7"
4
5define i32 @main(i32 %argc, i8** %argv) nounwind {
6entry:
7	br label %bb84
8
9bb41:		; preds = %bb82
10	%tmp = load i8, i8* %opt.0, align 1		; <i8> [#uses=0]
11	%tmp1 = getelementptr i8, i8* %opt.0, i32 1		; <i8*> [#uses=2]
12	switch i32 0, label %bb81 [
13		i32 102, label %bb82
14		i32 110, label %bb79
15		i32 118, label %bb80
16	]
17
18bb79:		; preds = %bb41
19	br label %bb82
20
21bb80:		; preds = %bb41
22	ret i32 0
23
24bb81:		; preds = %bb41
25	ret i32 1
26
27bb82:		; preds = %bb84, %bb79, %bb41
28	%opt.0 = phi i8* [ %tmp3, %bb84 ], [ %tmp1, %bb79 ], [ %tmp1, %bb41 ]		; <i8*> [#uses=3]
29	%tmp2 = load i8, i8* %opt.0, align 1		; <i8> [#uses=0]
30	br i1 false, label %bb84, label %bb41
31
32bb84:		; preds = %bb82, %entry
33	%tmp3 = getelementptr i8, i8* null, i32 1		; <i8*> [#uses=1]
34	br label %bb82
35}
36