-!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [propagate.cc] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !"propagate.cc", metadata !"."}
-!2 = metadata !{i32 0}
-!3 = metadata !{metadata !4, metadata !7}
-!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"foo", metadata !"foo", metadata !"", i32 3, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i64 (i32, i32, i64)* @_Z3fooiil, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [foo]
-!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [propagate.cc]
-!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !2, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!7 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 24, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @main, null, null, metadata !2, i32 24} ; [ DW_TAG_subprogram ] [line 24] [def] [main]
-!8 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!9 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
-!10 = metadata !{metadata !"clang version 3.5 "}
-!11 = metadata !{i32 4, i32 0, metadata !12, null}
-!12 = metadata !{i32 786443, metadata !1, metadata !4, i32 4, i32 0, i32 0} ; [ DW_TAG_lexical_block ] [propagate.cc]
-!13 = metadata !{i32 5, i32 0, metadata !14, null}
-!14 = metadata !{i32 786443, metadata !1, metadata !12, i32 4, i32 0, i32 1} ; [ DW_TAG_lexical_block ] [propagate.cc]
-!15 = metadata !{i32 7, i32 0, metadata !16, null}
-!16 = metadata !{i32 786443, metadata !1, metadata !17, i32 7, i32 0, i32 3} ; [ DW_TAG_lexical_block ] [propagate.cc]
-!17 = metadata !{i32 786443, metadata !1, metadata !12, i32 6, i32 0, i32 2} ; [ DW_TAG_lexical_block ] [propagate.cc]
-!18 = metadata !{i32 8, i32 0, metadata !19, null} ; [ DW_TAG_imported_declaration ]
-!19 = metadata !{i32 786443, metadata !1, metadata !20, i32 8, i32 0, i32 5} ; [ DW_TAG_lexical_block ] [propagate.cc]
-!20 = metadata !{i32 786443, metadata !1, metadata !16, i32 7, i32 0, i32 4} ; [ DW_TAG_lexical_block ] [propagate.cc]
-!21 = metadata !{i32 9, i32 0, metadata !19, null}
-!22 = metadata !{i32 10, i32 0, metadata !23, null}
-!23 = metadata !{i32 786443, metadata !1, metadata !20, i32 10, i32 0, i32 6} ; [ DW_TAG_lexical_block ] [propagate.cc]
-!24 = metadata !{i32 11, i32 0, metadata !25, null}
-!25 = metadata !{i32 786443, metadata !1, metadata !23, i32 10, i32 0, i32 7} ; [ DW_TAG_lexical_block ] [propagate.cc]
-!26 = metadata !{i32 12, i32 0, metadata !25, null}
-!27 = metadata !{i32 13, i32 0, metadata !25, null}
-!28 = metadata !{i32 14, i32 0, metadata !29, null}
-!29 = metadata !{i32 786443, metadata !1, metadata !30, i32 14, i32 0, i32 9} ; [ DW_TAG_lexical_block ] [propagate.cc]
-!30 = metadata !{i32 786443, metadata !1, metadata !23, i32 13, i32 0, i32 8} ; [ DW_TAG_lexical_block ] [propagate.cc]
-!31 = metadata !{i32 15, i32 0, metadata !32, null}
-!32 = metadata !{i32 786443, metadata !1, metadata !29, i32 14, i32 0, i32 10} ; [ DW_TAG_lexical_block ] [propagate.cc]
-!33 = metadata !{i32 16, i32 0, metadata !32, null}
-!34 = metadata !{i32 17, i32 0, metadata !32, null}
-!35 = metadata !{i32 19, i32 0, metadata !20, null}
-!36 = metadata !{i32 21, i32 0, metadata !4, null}
-!37 = metadata !{i32 22, i32 0, metadata !4, null}
-!38 = metadata !{i32 25, i32 0, metadata !7, null}
-!39 = metadata !{i32 26, i32 0, metadata !7, null}
-!40 = metadata !{i32 27, i32 0, metadata !7, null}
-!41 = metadata !{i32 28, i32 0, metadata !7, null}
-!42 = metadata !{i32 29, i32 0, metadata !7, null}
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!1 = !DIFile(filename: "propagate.cc", directory: ".")
+!2 = !{}
+!3 = !{!4, !7}
+!4 = distinct !DISubprogram(name: "foo", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !5, type: !6, function: i64 (i32, i32, i64)* @_Z3fooiil, variables: !2)
+!5 = !DIFile(filename: "propagate.cc", directory: ".")
+!6 = !DISubroutineType(types: !{null})
+!7 = distinct !DISubprogram(name: "main", line: 24, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 24, file: !1, scope: !5, type: !6, function: i32 ()* @main, variables: !2)
+!8 = !{i32 2, !"Dwarf Version", i32 4}
+!9 = !{i32 1, !"Debug Info Version", i32 3}
+!10 = !{!"clang version 3.5 "}
+!11 = !DILocation(line: 4, scope: !12)
+!12 = distinct !DILexicalBlock(line: 4, column: 0, file: !1, scope: !4)
+!13 = !DILocation(line: 5, scope: !14)
+!14 = distinct !DILexicalBlock(line: 4, column: 0, file: !1, scope: !12)
+!15 = !DILocation(line: 7, scope: !16)
+!16 = distinct !DILexicalBlock(line: 7, column: 0, file: !1, scope: !17)
+!17 = distinct !DILexicalBlock(line: 6, column: 0, file: !1, scope: !12)
+!18 = !DILocation(line: 8, scope: !19)
+!19 = distinct !DILexicalBlock(line: 8, column: 0, file: !1, scope: !20)
+!20 = distinct !DILexicalBlock(line: 7, column: 0, file: !1, scope: !16)
+!21 = !DILocation(line: 9, scope: !19)
+!22 = !DILocation(line: 10, scope: !23)
+!23 = distinct !DILexicalBlock(line: 10, column: 0, file: !1, scope: !20)
+!24 = !DILocation(line: 11, scope: !25)
+!25 = distinct !DILexicalBlock(line: 10, column: 0, file: !1, scope: !23)
+!26 = !DILocation(line: 12, scope: !25)
+!27 = !DILocation(line: 13, scope: !25)
+!28 = !DILocation(line: 14, scope: !29)
+!29 = distinct !DILexicalBlock(line: 14, column: 0, file: !1, scope: !30)
+!30 = distinct !DILexicalBlock(line: 13, column: 0, file: !1, scope: !23)
+!31 = !DILocation(line: 15, scope: !32)
+!32 = distinct !DILexicalBlock(line: 14, column: 0, file: !1, scope: !29)
+!33 = !DILocation(line: 16, scope: !32)
+!34 = !DILocation(line: 17, scope: !32)
+!35 = !DILocation(line: 19, scope: !20)
+!36 = !DILocation(line: 21, scope: !4)
+!37 = !DILocation(line: 22, scope: !4)
+!38 = !DILocation(line: 25, scope: !7)
+!39 = !DILocation(line: 26, scope: !7)
+!40 = !DILocation(line: 27, scope: !7)
+!41 = !DILocation(line: 28, scope: !7)
+!42 = !DILocation(line: 29, scope: !7)