https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94277
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:047811579f09048ed538674fd5251b35e5a92025 commit r10-7349-g047811579f09048ed538674fd5251b35e5a92025 Author: Jakub Jelinek <ja...@redhat.com> Date: Tue Mar 24 09:33:17 2020 +0100 cgraphunit: Avoid code generation differences based on -w/TREE_NO_WARNING [PR94277] The following testcase FAILs with -fcompare-debug, but not because -g vs. -g0 would make a difference, but because the second compilation is done with -w in order not to emit warnings twice and -w seems to affect the *.gkd dump content. This is because TREE_NO_WARNING flag, or warn_unused_function does affect not just whether a warning/pedwarn is printed, but also whether we set TREE_PUBLIC on such decls. The following patch makes sure we set it regardless of anything warning related (TREE_NO_WARNING or warn_unused_function). 2020-03-24 Jakub Jelinek <ja...@redhat.com> PR debug/94277 * cgraphunit.c (check_global_declaration): For DECL_EXTERNAL and non-TREE_PUBLIC non-DECL_ARTIFICIAL FUNCTION_DECLs, set TREE_PUBLIC regardless of whether TREE_NO_WARNING is set on it or whether warn_unused_function is true or not. * gcc.dg/pr94277.c: New test.
