[Bug target/104407] [10/11/12 Regression] '-fcompare-debug' failure (length) w/ -std=c++17 -O1

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104407

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Like either for early_dwarf in reference_to_unused return *tp; for any DECL_P
or STRING_CST found, or for early_dwarf use a different callback that does
that.