!0 = !DISubprogram(name: "f", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !6, scope: !1, type: !3, function: void ()* @f)
!1 = !DIFile(filename: "test2.c", directory: "/home/espindola/llvm")
-!2 = !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 ()", isOptimized: true, emissionKind: 0, file: !6, enums: !{}, retainedTypes: !{}, subprograms: !5)
+!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 ()", isOptimized: true, emissionKind: 0, file: !6, enums: !{}, retainedTypes: !{}, subprograms: !5)
!3 = !DISubroutineType(types: !4)
!4 = !{null}
!6 = !DIFile(filename: "test2.c", directory: "/home/espindola/llvm")