!1 = !DIFile(filename: "test.c", directory: "/home/user/clang-llvm/build")
!2 = !{}
!3 = !{!4}
-!4 = !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, function: double ()* @f, variables: !2)
+!4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, function: double ()* @f, variables: !2)
!5 = !DISubroutineType(types: !6)
!6 = !{!7}
!7 = !DIBasicType(name: "double", size: 64, align: 64, encoding: DW_ATE_float)