[Bug middle-end/124007] Improve branch-on-bit code generation

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124007

--- Comment #5 from Jeffrey A. Law <law at gcc dot gnu.org> ---
One of those damn define_insn_and_splits.  I haven't analyzed that one.