Some questions about FIELD_DECL

[Zack Weinberg]

Daniel Berlin <dberlin@dberlin.org> writes:

> I've actually discovered that we set the assembler name on a field that
> is the vtable, but never actually use it again, at least for DWARF2 and
> STABS (it's set to a constant called VFIELD_NAME).
> I grepped .s file from all of libjava and the stl testcases compared
> with -gstabs and -gdwarf-2, and none of them contain VFIELD_NAME with or
> without my change.

This appears to be mostly vestigial old ABI stuff.  VFIELD_NAME_P is
used to special-case the vtable pointer in the default copy
constructor and assignment operator (see cp/method.c:
do_build_copy_constructor, do_build_assign_ref respectively) but that
can and probably should be changed.  Even if it's kept, it would
suffice to use the DECL_NAME, not the DECL_ASSEMBLER_NAME, for that.

zw