[llvm-bugs] [Bug 27352] New: Split up DISubprogram

via llvm-bugs llvm-bugs at lists.llvm.org
Thu Apr 14 11:22:38 PDT 2016


            Bug ID: 27352
           Summary: Split up DISubprogram
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: DebugInfo
          Assignee: unassignedbugs at nondot.org
          Reporter: aprantl at apple.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

There are two types of DISubprogram:

(1) Subprogram definitions (which belong to a compile unit and are attached to
a Function)
(2) Subprogram declarations (which are part of the type hierarchy)

These should really be separate classes. Splitting them up would not just
simplify code and reduce overall awkwardness, but it would also allow us to
save memory by getting rid of extra fields that are not necessary. For example,
declarations don't need a declaration pointer, a list of variables, or a
compile unit.

Ideally the new DISubprogramDecl would be a subclass of DIType instead of

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