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1; RUN: opt < %s -passes='function(loop-simplify),loop-extract<single>' -disable-output2 3define void @ab() {4entry:5 br label %codeReplTail6 7then.1: ; preds = %codeReplTail8 br label %loopentry.19 10loopentry.1: ; preds = %no_exit.1, %then.111 br i1 false, label %no_exit.1, label %loopexit.0.loopexit112 13no_exit.1: ; preds = %loopentry.114 br label %loopentry.115 16loopexit.0.loopexit: ; preds = %codeReplTail17 ret void18 19loopexit.0.loopexit1: ; preds = %loopentry.120 ret void21 22codeReplTail: ; preds = %codeReplTail, %entry23 switch i16 0, label %codeReplTail [24 i16 0, label %loopexit.0.loopexit25 i16 1, label %then.126 ]27}28 29