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      1 ; RUN: opt < %s -simplifycfg  -S | grep select
      2 ; RUN: opt < %s -simplifycfg  -S | grep br | count 2
      3 
      4 define i32 @t2(i32 %a, i32 %b, i32 %c) nounwind  {
      5 entry:
      6         %tmp1 = icmp eq i32 %b, 0
      7         br i1 %tmp1, label %bb1, label %bb3
      8 
      9 bb1:            ; preds = %entry
     10 	%tmp2 = icmp sgt i32 %c, 1
     11 	br i1 %tmp2, label %bb2, label %bb3
     12 
     13 bb2:		; preds = bb1
     14 	%tmp3 = add i32 %a, 1
     15 	br label %bb3
     16 
     17 bb3:		; preds = %bb2, %entry
     18 	%tmp4 = phi i32 [ %b, %entry ], [ %a, %bb1 ], [ %tmp3, %bb2 ]
     19         %tmp5 = sub i32 %tmp4, 1
     20 	ret i32 %tmp5
     21 }
     22