!1 = !DIFile(filename: "test.c", directory: "")
!2 = !{}
!3 = !{!4}
-!4 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 ()* @foo, variables: !2)
+!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 ()* @foo, variables: !2)
!5 = !DIFile(filename: "test.c", directory: "")
!6 = !DISubroutineType(types: !7)
!7 = !{!8}