https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123888
--- Comment #10 from Jan Hubicka <hubicka at gcc dot gnu.org> --- Expanding speculative call of NewStandardURI/60 -> AddRef/95 count: 47149 (adjusted) Introduced new external node (__builtin_unreachable/966). If redirection to unreachable happens at inline transformation time, it should be already visible in cgraph dumps at WPA time that the call in question is redirected (or otherwise constant folding must decide so). Do you see unreachables at NewStandardURI callers at the end of WPA dumps?
