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      1 ; RUN: llc < %s -march=x86-64
      2 ; PR4297
      3 ; RUN: opt -S < %s -codegenprepare | FileCheck %s
      4 
      5 target datalayout =
      6 "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"
      7 target triple = "x86_64-unknown-linux-gnu"
      8         %"byte[]" = type { i64, i8* }
      9         %"char[][]" = type { i64, %"byte[]"* }
     10 @.str = external constant [7 x i8]              ; <[7 x i8]*> [#uses=1]
     11 
     12 ; CHECK-LABEL: @_Dmain
     13 ; CHECK: load i8, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i32 0, i32 0)
     14 ; CHECK: ret
     15 define fastcc i32 @_Dmain(%"char[][]" %unnamed) {
     16 entry:
     17         %tmp = getelementptr [7 x i8], [7 x i8]* @.str, i32 0, i32 0              ; <i8*> [#uses=1]
     18         br i1 undef, label %foreachbody, label %foreachend
     19 
     20 foreachbody:            ; preds = %entry
     21         %tmp4 = getelementptr i8, i8* %tmp, i32 undef               ; <i8*> [#uses=1]
     22         %tmp5 = load i8, i8* %tmp4          ; <i8> [#uses=0]
     23         unreachable
     24 
     25 foreachend:             ; preds = %entry
     26         ret i32 0
     27 }
     28 
     29