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; RUN: llvm-as < %s | opt -tailduplicate -disable-output
define void @ab() {
entry:
br label %loopentry.5
loopentry.5: ; preds = %no_exit.5, %entry
%poscnt.1 = phi i64 [ 0, %entry ], [ %tmp.289, %no_exit.5 ] ; <i64> [#uses=1]
%tmp.289 = ashr i64 %poscnt.1, 1 ; <i64> [#uses=1]
br i1 false, label %no_exit.5, label %loopexit.5
no_exit.5: ; preds = %loopentry.5
br label %loopentry.5
loopexit.5: ; preds = %loopentry.5
ret void
}
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