[Bug middle-end/110726] [14 Regression] wrong code on llvm-16 around 'a |= a == 0'

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110726

--- Comment #7 from Sergei Trofimovich <slyfox at gcc dot gnu.org> ---
Silly question: I would expect -O0 not to perform any simplifications like
that.  Does `gcc` have a knob to disable `match.pd` templates? Or some of them
are crucial for correctness?