[Bug sanitizer/69656] -fsanitize=undefined compile time hog

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69656

--- Comment #13 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Ah, clang only takes over 11 minutes when I use the -S switch.
Without it, clang finishes in only 1:30 minutes.