{name: "LoweredInterCall", argLength: 2, reg: regInfo{inputs: []regMask{gp}, clobbers: callerSave}, aux: "CallOff", call: true},          // call fn by pointer. arg0=codeptr, arg1=mem, auxint=argsize, returns mem

(ConstNil) => (I64Const [0])
(ConstBool [c]) => (I64Const [b2i(c)])

// Lowering calls
(StaticCall ...) => (LoweredStaticCall ...)
(ClosureCall ...) => (LoweredClosureCall ...)
(InterCall ...) => (LoweredInterCall ...)
(TailCall ...) => (LoweredTailCall ...)

// Miscellaneous
(Convert ...) => (LoweredConvert ...)
(IsNonNil p) => (I64Eqz (I64Eqz p))
(IsInBounds ...) => (I64LtU ...)