-!0 = metadata !{i32 524545, metadata !1, metadata !"buf", metadata !2, i32 4, metadata !6} ; [ DW_TAG_arg_variable ]
-!1 = metadata !{i32 524334, metadata !26, null, metadata !"x0", metadata !"x0", metadata !"x0", i32 5, metadata !4, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 false, null, null, null, null, i32 0} ; [ DW_TAG_subprogram ]
-!2 = metadata !{i32 524329, metadata !26} ; [ DW_TAG_file_type ]
-!3 = metadata !{i32 524305, i32 0, i32 12, metadata !"t.c", metadata !".", metadata !"clang 2.0", i1 true, i1 true, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
-!4 = metadata !{i32 524309, metadata !26, metadata !2, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !5, i32 0, null} ; [ DW_TAG_subroutine_type ]
-!5 = metadata !{null}
-!6 = metadata !{i32 524303, metadata !26, metadata !2, metadata !"", i32 0, i64 32, i64 32, i64 0, i32 0, metadata !7} ; [ DW_TAG_pointer_type ]
-!7 = metadata !{i32 524324, metadata !26, metadata !2, metadata !"unsigned char", i32 0, i64 8, i64 8, i64 0, i32 0, i32 8} ; [ DW_TAG_base_type ]
-!8 = metadata !{i32 524545, metadata !1, metadata !"nbytes", metadata !2, i32 4, metadata !9} ; [ DW_TAG_arg_variable ]
-!9 = metadata !{i32 524324, metadata !26, metadata !2, metadata !"unsigned long", i32 0, i64 32, i64 32, i64 0, i32 0, i32 7} ; [ DW_TAG_base_type ]
-!10 = metadata !{i32 524544, metadata !11, metadata !"nread", metadata !2, i32 6, metadata !9} ; [ DW_TAG_auto_variable ]
-!11 = metadata !{i32 524299, metadata !26, metadata !1, i32 5, i32 1, i32 0} ; [ DW_TAG_lexical_block ]
-!12 = metadata !{i32 524544, metadata !11, metadata !"c", metadata !2, i32 7, metadata !13} ; [ DW_TAG_auto_variable ]
-!13 = metadata !{i32 524324, metadata !26, metadata !2, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
-!14 = metadata !{i32 524340, i32 0, metadata !2, metadata !"length", metadata !"length", metadata !"length", metadata !2, i32 1, metadata !13, i1 false, i1 true, i32* @length} ; [ DW_TAG_variable ]
-!15 = metadata !{i32 4, i32 24, metadata !1, null}
-!16 = metadata !{i32 4, i32 43, metadata !1, null}
-!17 = metadata !{i32 9, i32 2, metadata !11, null}
-!18 = metadata !{i32 0}
-!19 = metadata !{i32 10, i32 2, metadata !11, null}
-!20 = metadata !{i32 11, i32 2, metadata !11, null}
-!21 = metadata !{i32 12, i32 3, metadata !22, null}
-!22 = metadata !{i32 524299, metadata !26, metadata !11, i32 11, i32 45, i32 0} ; [ DW_TAG_lexical_block ]
-!23 = metadata !{i32 13, i32 3, metadata !22, null}
-!24 = metadata !{i32 14, i32 2, metadata !22, null}
-!25 = metadata !{i32 15, i32 1, metadata !11, null}
-!26 = metadata !{metadata !"t.c", metadata !"/private/tmp"}
+!0 = !DILocalVariable(name: "buf", line: 4, arg: 1, scope: !1, file: !2, type: !6)
+!1 = distinct !DISubprogram(name: "x0", linkageName: "x0", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !26, scope: null, type: !4)
+!2 = !DIFile(filename: "t.c", directory: "/private/tmp")
+!3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang 2.0", isOptimized: true, file: !26)
+!4 = !DISubroutineType(types: !5)
+!5 = !{null}
+!6 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, file: !26, scope: !2, baseType: !7)
+!7 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned char", size: 8, align: 8, encoding: DW_ATE_unsigned_char)
+!8 = !DILocalVariable(name: "nbytes", line: 4, arg: 2, scope: !1, file: !2, type: !9)
+!9 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned long", size: 32, align: 32, encoding: DW_ATE_unsigned)
+!10 = !DILocalVariable(name: "nread", line: 6, scope: !11, file: !2, type: !9)
+!11 = distinct !DILexicalBlock(line: 5, column: 1, file: !26, scope: !1)
+!12 = !DILocalVariable(name: "c", line: 7, scope: !11, file: !2, type: !13)
+!13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!14 = !DIGlobalVariable(name: "length", linkageName: "length", line: 1, isLocal: false, isDefinition: true, scope: !2, file: !2, type: !13, variable: i32* @length)
+!15 = !DILocation(line: 4, column: 24, scope: !1)
+!16 = !DILocation(line: 4, column: 43, scope: !1)
+!17 = !DILocation(line: 9, column: 2, scope: !11)
+!18 = !{i32 0}
+!19 = !DILocation(line: 10, column: 2, scope: !11)
+!20 = !DILocation(line: 11, column: 2, scope: !11)
+!21 = !DILocation(line: 12, column: 3, scope: !22)
+!22 = distinct !DILexicalBlock(line: 11, column: 45, file: !26, scope: !11)
+!23 = !DILocation(line: 13, column: 3, scope: !22)
+!24 = !DILocation(line: 14, column: 2, scope: !22)
+!25 = !DILocation(line: 15, column: 1, scope: !11)
+!26 = !DIFile(filename: "t.c", directory: "/private/tmp")