-!4 = !MDSubprogram(name: "f", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, function: i32 (i32)* @f, variables: !2)
-!5 = !MDFile(filename: "", directory: "")
-!6 = !MDSubroutineType(types: !7)
+!4 = distinct !DISubprogram(name: "f", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !1, type: !6, variables: !2)
+!6 = !DISubroutineType(types: !7)