// some kind of hint from the target that int div is expensive.
// various folds of mulh[s,u] by constants such as -1, powers of 2, etc.
//
-// FIXME: Should add a corresponding version of fold AND with
-// ZERO_EXTEND/SIGN_EXTEND by converting them to an ANY_EXTEND node which
-// we don't have yet.
-//
// FIXME: select C, pow2, pow2 -> something smart
// FIXME: trunc(select X, Y, Z) -> select X, trunc(Y), trunc(Z)
// FIXME: Dead stores -> nuke