https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116143
--- Comment #5 from David Malcolm <dmalcolm at gcc dot gnu.org> --- (In reply to David Malcolm from comment #1) [...snip...] > My guess is that nothing is using class simple_diagnostic_path in cc1, and > thus the code for simple_diagnostic_path is being dropped by the linker, so > it's not available to the plugin. It's used by a selftest in simple-diagnostic-path.cc, but that's only enabled if #if CHECKING_P so maybe this is failing on release builds and passing on debug builds??? FWIW I've seen a couple of patches in progress that add "real" uses of the class to the middle-end (e.g. Qing's "[RFC][PATCH v1] Provide more contexts for -Warray-bounds warning messages " https://gcc.gnu.org/pipermail/gcc-patches/2024-July/656199.html )
