On Mon, 2014-03-24 at 10:26 +0100, Richard Biener wrote: > On Sun, Mar 23, 2014 at 12:18 PM, Mark Wielaard <m...@redhat.com> wrote: > > Add a new lang-hook that provides the underlying base type of an > > ENUMERAL_TYPE. Including implementations for C and C++. Use this > > enum_underlying_base_type lang-hook in dwarf2out.c to add a DW_AT_type > > base type reference to a DW_TAG_enumeration. > > Don't we have TREE_TYPE (enum-type) as that type? Thus, can we avoid > adding the new langhook?
The underlying type is the integral base type of the enum, which, at least for C++, can be different from the tree type of the enum. See also cp/semantics.c (finish_underlying_type) which calculates it in the C++ case. Cheers, Mark
