[Bug ipa/122458] static function is removed even when referred from extended toplevel asm

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122458

--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Michal Jires <mjires@gcc.gnu.org>:

https://gcc.gnu.org/g:c8b6ac52adc35d5ed8476fbf774995240de3d490

commit r16-6689-gc8b6ac52adc35d5ed8476fbf774995240de3d490
Author: Michal Jires <mjires@suse.cz>
Date:   Sat Nov 15 19:54:11 2025 +0100

    ipa: Analyze toplevel extended assembly

    Analyzes references from toplevel extended assembly.

    We cannot perform IPA optimizations with toplevel assembly, so
    symtab_node only needs ref_by_asm to know that it should not be removed.

            PR ipa/122458

    gcc/ChangeLog:

            * Makefile.in: Add new file.
            * cgraph.h (analyze_toplevel_extended_asm): New.
            * cgraphunit.cc (symbol_table::finalize_compilation_unit):
            Call analyze_toplevel_extended_asm.
            * asm-toplevel.cc: New file.

    gcc/lto/ChangeLog:

            * lto-common.cc (read_cgraph_and_symbols):
            Call analyze_toplevel_extended_asm.

    gcc/testsuite/ChangeLog:

            * gcc.dg/ipa/pr122458.c: New test.