| ; REQUIRES: asserts | 
 | ; RUN: llc < %s -mtriple=x86_64-apple-darwin11 -relocation-model=pic -disable-fp-elim -stats 2>&1 | not grep ext-opt | 
 |  | 
 | define fastcc i8* @S_scan_str(i8* %start, i32 %keep_quoted, i32 %keep_delims) nounwind ssp { | 
 | entry: | 
 |   switch i8 undef, label %bb6 [ | 
 |     i8 9, label %bb5 | 
 |     i8 32, label %bb5 | 
 |     i8 10, label %bb5 | 
 |     i8 13, label %bb5 | 
 |     i8 12, label %bb5 | 
 |   ] | 
 |  | 
 | bb5:                                              ; preds = %entry, %entry, %entry, %entry, %entry | 
 |   br label %bb6 | 
 |  | 
 | bb6:                                              ; preds = %bb5, %entry | 
 |   br i1 undef, label %bb7, label %bb9 | 
 |  | 
 | bb7:                                              ; preds = %bb6 | 
 |   unreachable | 
 |  | 
 | bb9:                                              ; preds = %bb6 | 
 |   %0 = load i8, i8* undef, align 1                    ; <i8> [#uses=3] | 
 |   br i1 undef, label %bb12, label %bb10 | 
 |  | 
 | bb10:                                             ; preds = %bb9 | 
 |   br i1 undef, label %bb12, label %bb11 | 
 |  | 
 | bb11:                                             ; preds = %bb10 | 
 |   unreachable | 
 |  | 
 | bb12:                                             ; preds = %bb10, %bb9 | 
 |   br i1 undef, label %bb13, label %bb14 | 
 |  | 
 | bb13:                                             ; preds = %bb12 | 
 |   store i8 %0, i8* undef, align 1 | 
 |   %1 = zext i8 %0 to i32                          ; <i32> [#uses=1] | 
 |   br label %bb18 | 
 |  | 
 | bb14:                                             ; preds = %bb12 | 
 |   br label %bb18 | 
 |  | 
 | bb18:                                             ; preds = %bb14, %bb13 | 
 |   %termcode.0 = phi i32 [ %1, %bb13 ], [ undef, %bb14 ] ; <i32> [#uses=2] | 
 |   %2 = icmp eq i8 %0, 0                           ; <i1> [#uses=1] | 
 |   br i1 %2, label %bb21, label %bb19 | 
 |  | 
 | bb19:                                             ; preds = %bb18 | 
 |   br i1 undef, label %bb21, label %bb20 | 
 |  | 
 | bb20:                                             ; preds = %bb19 | 
 |   br label %bb21 | 
 |  | 
 | bb21:                                             ; preds = %bb20, %bb19, %bb18 | 
 |   %termcode.1 = phi i32 [ %termcode.0, %bb18 ], [ %termcode.0, %bb19 ], [ undef, %bb20 ] ; <i32> [#uses=0] | 
 |   unreachable | 
 | } |