https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120855
--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Nathaniel Shead <nsh...@gcc.gnu.org>: https://gcc.gnu.org/g:4a8fd4a8ee3f83c330deb0dd494b27f66a748fb5 commit r16-2559-g4a8fd4a8ee3f83c330deb0dd494b27f66a748fb5 Author: Nathaniel Shead <nathanielosh...@gmail.com> Date: Thu Jul 24 09:41:00 2025 +1000 Prevent mixups of IDENTIFIER_TRANSPARENT_ALIAS and IDENTIFIER_INTERNAL_P better [PR120855] The assertion failure on ASM_OUTPUT_WEAKREF targets since my r16-1738 was caused because the 'TREE_CHAIN (id)' check in assemble_name_resolve no longer implies that ID is a transparent alias, since internal identifiers can have a TREE_CHAIN as well. I still don't think it's possible for a transparent alias to be an internal identifier in the sense added, so this patch simply constrains the assertion better so that it doesn't fail spuriously. I also added a couple of other assertions to help validate this assumption. PR middle-end/120855 gcc/ChangeLog: * cgraphunit.cc (symbol_table::compile): Assert a transparent alias is not an internal identifier. * symtab.cc (symbol_table::change_decl_assembler_name): Likewise. * varasm.cc (assemble_name_resolve): Check for IDENTIFIER_TRANSPARENT_ALIAS instead of just TREE_CHAIN. Signed-off-by: Nathaniel Shead <nathanielosh...@gmail.com> Reviewed-by: Jason Merrill <ja...@redhat.com>