; RUN: opt < %s -loop-unswitch -disable-output ; PR1333 define void @pp_cxx_expression() { entry: %tmp6 = lshr i32 0, 24 ; <i32> [#uses=1] br label %tailrecurse tailrecurse: ; preds = %tailrecurse, %tailrecurse, %entry switch i32 %tmp6, label %bb96 [ i32 24, label %bb10 i32 25, label %bb10 i32 28, label %bb10 i32 29, label %bb48 i32 31, label %bb48 i32 32, label %bb48 i32 33, label %bb48 i32 34, label %bb48 i32 36, label %bb15 i32 51, label %bb89 i32 52, label %bb89 i32 54, label %bb83 i32 57, label %bb59 i32 63, label %bb80 i32 64, label %bb80 i32 68, label %bb80 i32 169, label %bb75 i32 170, label %bb19 i32 171, label %bb63 i32 172, label %bb63 i32 173, label %bb67 i32 174, label %bb67 i32 175, label %bb19 i32 176, label %bb75 i32 178, label %bb59 i32 179, label %bb89 i32 180, label %bb59 i32 182, label %bb48 i32 183, label %bb48 i32 184, label %bb48 i32 185, label %bb48 i32 186, label %bb48 i32 195, label %bb48 i32 196, label %bb59 i32 197, label %bb89 i32 198, label %bb70 i32 199, label %bb59 i32 200, label %bb59 i32 201, label %bb59 i32 202, label %bb59 i32 203, label %bb75 i32 204, label %bb59 i32 205, label %tailrecurse i32 210, label %tailrecurse ] bb10: ; preds = %tailrecurse, %tailrecurse, %tailrecurse ret void bb15: ; preds = %tailrecurse ret void bb19: ; preds = %tailrecurse, %tailrecurse ret void bb48: ; preds = %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse ret void bb59: ; preds = %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse ret void bb63: ; preds = %tailrecurse, %tailrecurse ret void bb67: ; preds = %tailrecurse, %tailrecurse ret void bb70: ; preds = %tailrecurse ret void bb75: ; preds = %tailrecurse, %tailrecurse, %tailrecurse ret void bb80: ; preds = %tailrecurse, %tailrecurse, %tailrecurse ret void bb83: ; preds = %tailrecurse ret void bb89: ; preds = %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse ret void bb96: ; preds = %tailrecurse ret void }