; RUN: opt -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S < %s | FileCheck %s ; Just checking for lack of crash here, but we should be able to check the IR? ; Earlier version using auto-generated checks from utils/update_test_checks.py ; had bot problems though... define void @patatino() { ; CHECK-LABEL: @patatino br label %bb1 bb1: ; preds = %bb36, %0 br label %bb2 bb2: ; preds = %bb3, %bb1 br i1 undef, label %bb4, label %bb3 bb3: ; preds = %bb4, %bb2 br i1 undef, label %bb2, label %bb5 bb4: ; preds = %bb2 switch i32 undef, label %bb3 [ ] bb5: ; preds = %bb3 br label %bb6 bb6: ; preds = %bb5 br i1 undef, label %bb7, label %bb9 bb7: ; preds = %bb6 %tmp = or i64 undef, 1 %tmp8 = icmp ult i64 %tmp, 0 br i1 %tmp8, label %bb12, label %bb9 bb9: ; preds = %bb35, %bb34, %bb33, %bb32, %bb31, %bb30, %bb27, %bb24, %bb21, %bb18, %bb16, %bb14, %bb12, %bb7, %bb6 br label %bb11 bb10: ; preds = %bb36 br label %bb11 bb11: ; preds = %bb10, %bb9 ret void bb12: ; preds = %bb7 %tmp13 = icmp ult i64 0, 0 br i1 %tmp13, label %bb14, label %bb9 bb14: ; preds = %bb12 %tmp15 = icmp ult i64 undef, 0 br i1 %tmp15, label %bb16, label %bb9 bb16: ; preds = %bb14 %tmp17 = icmp ult i64 undef, 0 br i1 %tmp17, label %bb18, label %bb9 bb18: ; preds = %bb16 %tmp19 = or i64 undef, 5 %tmp20 = icmp ult i64 %tmp19, 0 br i1 %tmp20, label %bb21, label %bb9 bb21: ; preds = %bb18 %tmp22 = or i64 undef, 6 %tmp23 = icmp ult i64 %tmp22, 0 br i1 %tmp23, label %bb24, label %bb9 bb24: ; preds = %bb21 %tmp25 = or i64 undef, 7 %tmp26 = icmp ult i64 %tmp25, 0 br i1 %tmp26, label %bb27, label %bb9 bb27: ; preds = %bb24 %tmp28 = or i64 undef, 8 %tmp29 = icmp ult i64 %tmp28, 0 br i1 %tmp29, label %bb30, label %bb9 bb30: ; preds = %bb27 br i1 undef, label %bb31, label %bb9 bb31: ; preds = %bb30 br i1 undef, label %bb32, label %bb9 bb32: ; preds = %bb31 br i1 undef, label %bb33, label %bb9 bb33: ; preds = %bb32 br i1 undef, label %bb34, label %bb9 bb34: ; preds = %bb33 br i1 undef, label %bb35, label %bb9 bb35: ; preds = %bb34 br i1 undef, label %bb36, label %bb9 bb36: ; preds = %bb35 br i1 undef, label %bb1, label %bb10 }