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1; RUN: opt < %s -passes=loop-vectorize,dce -force-vector-interleave=1 -force-vector-width=42 3; Check that we don't fall into an infinite loop.4define void @test() nounwind {5entry:6 br label %for.body7 8for.body:9 %0 = phi i32 [ 1, %entry ], [ 0, %for.body ]10 br label %for.body11}12 13 14 15define void @test2() nounwind {16entry:17 br label %for.body18 19for.body: ; preds = %for.body, %entry20 %indvars.iv47 = phi i64 [ 0, %entry ], [ %indvars.iv.next48, %for.body ]21 %0 = phi i32 [ 1, %entry ], [ 0, %for.body ]22 %indvars.iv.next48 = add i64 %indvars.iv47, 123 br i1 false, label %for.end, label %for.body24 25for.end: ; preds = %for.body26 unreachable27}28 29;PR1470130define void @start_model_rare(i1 %arg) nounwind uwtable ssp {31entry:32 br i1 false, label %return, label %if.end33 34if.end: ; preds = %entry35 br i1 true, label %cond.false, label %cond.true36 37cond.true: ; preds = %if.end38 unreachable39 40cond.false: ; preds = %if.end41 br i1 true, label %cond.false28, label %cond.true2042 43cond.true20: ; preds = %cond.false44 unreachable45 46cond.false28: ; preds = %cond.false47 br label %for.body4048 49for.body40: ; preds = %for.inc50, %cond.false2850 %indvars.iv123 = phi i64 [ 3, %cond.false28 ], [ %indvars.iv.next124, %for.inc50 ]51 %step.0121 = phi i32 [ 1, %cond.false28 ], [ %step.1, %for.inc50 ]52 br i1 %arg, label %if.then46, label %for.inc5053 54if.then46: ; preds = %for.body4055 %inc47 = add nsw i32 %step.0121, 156 br label %for.inc5057 58for.inc50: ; preds = %if.then46, %for.body4059 %k.1 = phi i32 [ 0, %for.body40 ], [ %inc47, %if.then46 ]60 %step.1 = phi i32 [ %step.0121, %for.body40 ], [ %inc47, %if.then46 ]61 %indvars.iv.next124 = add i64 %indvars.iv123, 162 %lftr.wideiv = trunc i64 %indvars.iv.next124 to i3263 %exitcond = icmp eq i32 %lftr.wideiv, 25664 br i1 %exitcond, label %for.end52, label %for.body4065 66for.end52: ; preds = %for.inc5067 unreachable68 69return: ; preds = %entry70 ret void71}72