[Bug rtl-optimization/92342] [10 Regression] a small missed transformation into x?b:0

[rearnsha at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92342

--- Comment #5 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
So if the AND-based idiom is now preferred, shouldn't the if-then-else variant
be transformed into it?  Similarly for IOR, when we get

(IOR (NEG (<cond-op>)) (reg))

from

(IF_THEN_ELSE (<cond-op>)
  (reg)
  (const_int -1))