[C++ PATCH] Move mangling alias out of ::

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00199.html
	gcc/cp/
	Move mangling aliases out of global namespace.
	* cp-tree.h (record_mangling): New.
	(maybe_remove_implicit_alias): Delete.
	* decl2.c (mangled_decls): New hash map.
	(generate_mangling_alias): Reimplement using mangled_decls.
	(record_mangling): New.
	* mangle.c (decl_implicit_alias_p,
	maybe_remove_implicit_alias): Delete.
	(mangle_decl): Use record_mangling.
	* name-lookup.c (supplement_binding_1): Remove
	maybe_remove_implicit_alias check.

	* call.c (convert_arg_to_ellipsis): Correct comment about passing
	by reference.

	gcc/testsuite/
	* g++.dg/abi/mangle41.C: Adjust diagnostics.

	libcc1/
	* libcp1plugin.cc (supplement_binding): Don't use
	maybe_remove_implicit_alias.

From-SVN: r253421

1 files changed, 0 insertions, 6 deletions

diff --git a/libcc1/libcp1plugin.cc b/libcc1/libcp1plugin.cc
index d7bf5a29d6d..12ea4ed84e0 100644
--- a/libcc1/libcp1plugin.cc
+++ b/libcc1/libcp1plugin.cc
@@ -422,12 +422,6 @@ supplement_binding (cxx_binding *binding, tree decl)
       region to refer only to the namespace to which it already
       refers.  */
     ok = false;
-  else if (maybe_remove_implicit_alias (bval))
-    {
-      /* There was a mangling compatibility alias using this mangled name,
-	 but now we have a real decl that wants to use it instead.  */
-      binding->value = decl;
-    }
   else
     {
       // _1: diagnose_name_conflict (decl, bval);