[Bug rtl-optimization/71636] Missed optimization in variable alignment test

[rth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71636

--- Comment #1 from Richard Henderson <rth at gcc dot gnu.org> ---
Oh, and I meant to mention -- if the target doesn't have an andnot
insn, both formulations are identical in complexity and minimal path.

Which might suggest *always* performing the transformation at a
high level, letting the andnot be used if it happens to be available.