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; RUN: opt < %s  -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -enable-if-conversion

target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.8.0"

define fastcc void @DD_dump() nounwind uwtable ssp {
entry:
  br i1 undef, label %lor.lhs.false, label %if.end25

lor.lhs.false:                                    ; preds = %entry
  br i1 undef, label %if.end21, label %if.else

if.else:                                          ; preds = %lor.lhs.false
  br i1 undef, label %num_q.exit, label %while.body.i.preheader

while.body.i.preheader:                           ; preds = %if.else
  br label %while.body.i

while.body.i:                                     ; preds = %if.end.i, %while.body.i.preheader
  switch i8 undef, label %if.end.i [
    i8 39, label %if.then.i
    i8 92, label %if.then.i
  ]

if.then.i:                                        ; preds = %while.body.i, %while.body.i
  br label %if.end.i

if.end.i:                                         ; preds = %if.then.i, %while.body.i
  br i1 undef, label %num_q.exit, label %while.body.i

num_q.exit:                                       ; preds = %if.end.i, %if.else
  unreachable

if.end21:                                         ; preds = %lor.lhs.false
  unreachable

if.end25:                                         ; preds = %entry
  ret void
}