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My previous patch for 105761 avoided copying DECL_TEMPLATE_INFO from a friend to a later definition, but in this testcase we have first a non-friend declaration and then a definition, and we need to avoid copying in that case as well. But we do still want to set new_template_info to avoid GC trouble. With this change, the modules dump correctly identifies ::foo as a non-template function in tpl-friend-2_a.C. Along the way I noticed that the duplicate_decls handling of DECL_UNIQUE_FRIEND_P was backwards for templates, where we don't clobber DECL_LANG_SPECIFIC (olddecl) with DECL_LANG_SPECIFIC (newdecl) like we do for non-templates. PR c++/105852 PR c++/105761 gcc/cp/ChangeLog: * decl.cc (duplicate_decls): Avoid copying template info from non-templated friend even if newdecl isn't a definition. Correct handling of DECL_UNIQUE_FRIEND_P on templates. * pt.cc (non_templated_friend_p): New. * cp-tree.h (non_templated_friend_p): Declare it. gcc/testsuite/ChangeLog: * g++.dg/modules/tpl-friend-2_a.C: Adjust expected dump. * g++.dg/template/friend74.C: New test. |
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