Handle anonymous unions at the tree level.

[pf3gnuchains/gcc-fork.git] / gcc / cp / ChangeLog

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
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@@ -1,3 +1,22 @@
+2002-12-18  Jason Merrill  <jason@redhat.com>
+
+       Handle anonymous unions at the tree level.
+       C++ ABI change: Mangle anonymous unions using the name of their
+       first named field (by depth-first search).  Should not cause
+       binary compatibility problems, though, as the compiler previously
+       didn't emit anything for affected unions.
+       * cp-tree.def (ALIAS_DECL): New tree code.
+       * decl2.c (build_anon_union_vars): Build ALIAS_DECLs.  Return the
+       first field, not the largest.
+       (finish_anon_union): Don't mess with RTL.  Do set DECL_ASSEMBLER_NAME,
+       push the decl, and write it out at namespace scope.
+       * decl.c (lookup_name_real): See through an ALIAS_DECL.
+       (pushdecl): Add namespace bindings for ALIAS_DECLs.
+       * rtti.c (unemitted_tinfo_decl_p): Don't try to look at the name
+       of a decl which doesn't have one.
+       * typeck.c (build_class_member_access_expr): Don't recurse if
+       we already have the type we want.
+
 2002-12-18  Kriang Lerdsuwanakij  <lerdsuwa@users.sourceforge.net>
 
        PR c++/8099