CompileUnitMetadata

public struct CompileUnitMetadata : DIScope

CompileUnitMetadata nodes represent a compile unit, the root of a metadata hierarchy for a translation unit.

Compile unit descriptors provide the root scope for objects declared in a specific compilation unit. FileMetadata descriptors are defined using this scope.

These descriptors are collected by a named metadata node !llvm.dbg.cu. They keep track of global variables, type information, and imported entities (declarations and namespaces).