|  | ; RUN: llc -verify-loop-info -verify-dom-info -mtriple=x86_64-- < %s | 
|  | ; PR5243 | 
|  |  | 
|  | @.str96 = external constant [37 x i8], align 8    ; <[37 x i8]*> [#uses=1] | 
|  |  | 
|  | define void @foo() nounwind { | 
|  | bb: | 
|  | br label %ybb1 | 
|  |  | 
|  | ybb1:                                              ; preds = %yybb13, %xbb6, %bb | 
|  | switch i32 undef, label %bb18 [ | 
|  | i32 150, label %ybb2 | 
|  | i32 151, label %bb17 | 
|  | i32 152, label %bb19 | 
|  | i32 157, label %ybb8 | 
|  | ] | 
|  |  | 
|  | ybb2:                                              ; preds = %ybb1 | 
|  | %tmp = icmp eq i8** undef, null                 ; <i1> [#uses=1] | 
|  | br i1 %tmp, label %bb3, label %xbb6 | 
|  |  | 
|  | bb3:                                              ; preds = %ybb2 | 
|  | unreachable | 
|  |  | 
|  | xbb4:                                              ; preds = %xbb6 | 
|  | store i32 0, i32* undef, align 8 | 
|  | br i1 undef, label %xbb6, label %bb5 | 
|  |  | 
|  | bb5:                                              ; preds = %xbb4 | 
|  | call fastcc void @decl_mode_check_failed() nounwind | 
|  | unreachable | 
|  |  | 
|  | xbb6:                                              ; preds = %xbb4, %ybb2 | 
|  | %tmp7 = icmp slt i32 undef, 0                   ; <i1> [#uses=1] | 
|  | br i1 %tmp7, label %xbb4, label %ybb1 | 
|  |  | 
|  | ybb8:                                              ; preds = %ybb1 | 
|  | %tmp9 = icmp eq i8** undef, null                ; <i1> [#uses=1] | 
|  | br i1 %tmp9, label %bb10, label %ybb12 | 
|  |  | 
|  | bb10:                                             ; preds = %ybb8 | 
|  | %tmp11 = load i8*, i8** undef, align 8               ; <i8*> [#uses=1] | 
|  | call void (i8*, ...) @fatal(i8* getelementptr inbounds ([37 x i8], [37 x i8]* @.str96, i64 0, i64 0), i8* %tmp11) nounwind | 
|  | unreachable | 
|  |  | 
|  | ybb12:                                             ; preds = %ybb8 | 
|  | br i1 undef, label %bb15, label %ybb13 | 
|  |  | 
|  | ybb13:                                             ; preds = %ybb12 | 
|  | %tmp14 = icmp sgt i32 undef, 0                  ; <i1> [#uses=1] | 
|  | br i1 %tmp14, label %bb16, label %ybb1 | 
|  |  | 
|  | bb15:                                             ; preds = %ybb12 | 
|  | call void (i8*, ...) @fatal(i8* getelementptr inbounds ([37 x i8], [37 x i8]* @.str96, i64 0, i64 0), i8* undef) nounwind | 
|  | unreachable | 
|  |  | 
|  | bb16:                                             ; preds = %ybb13 | 
|  | unreachable | 
|  |  | 
|  | bb17:                                             ; preds = %ybb1 | 
|  | unreachable | 
|  |  | 
|  | bb18:                                             ; preds = %ybb1 | 
|  | unreachable | 
|  |  | 
|  | bb19:                                             ; preds = %ybb1 | 
|  | unreachable | 
|  | } | 
|  |  | 
|  | declare void @fatal(i8*, ...) | 
|  |  | 
|  | declare fastcc void @decl_mode_check_failed() nounwind |