[Bug rtl-optimization/124624] Missed optimization on arrangement of code blocks/branches (-Os mode)

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124624

--- Comment #3 from Jeffrey A. Law <law at gcc dot gnu.org> ---
I'm pretty sure it can invert.   It's even got code that's supposed to handle
this kind of scenario, in fact it's supposed to strongly prefer generating
Kang-Che's desired code when optimizing for size.