1 ; RUN: opt < %s -loop-unswitch -disable-output 2 3 define void @init_caller_save() { 4 entry: 5 br label %cond_true78 6 cond_next20: ; preds = %cond_true64 7 br label %bb31 8 bb31: ; preds = %cond_true64, %cond_true64, %cond_next20 9 %iftmp.29.1 = phi i32 [ 0, %cond_next20 ], [ 0, %cond_true64 ], [ 0, %cond_true64 ] ; <i32> [#uses=0] 10 br label %bb54 11 bb54: ; preds = %cond_true78, %bb31 12 br i1 false, label %bb75, label %cond_true64 13 cond_true64: ; preds = %bb54 14 switch i32 %i.0.0, label %cond_next20 [ 15 i32 17, label %bb31 16 i32 18, label %bb31 17 ] 18 bb75: ; preds = %bb54 19 %tmp74.0 = add i32 %i.0.0, 1 ; <i32> [#uses=1] 20 br label %cond_true78 21 cond_true78: ; preds = %bb75, %entry 22 %i.0.0 = phi i32 [ 0, %entry ], [ %tmp74.0, %bb75 ] ; <i32> [#uses=2] 23 br label %bb54 24 } 25 26