for _, r := range p.Registers {
			m := archRegForAbiReg(r, c)
			a.reg.inputs = append(a.reg.inputs, inputInfo{idx: k, regs: (1 << m)})
			k++
		}
	}
	a.reg.inputs = append(a.reg.inputs, i.inputs...) // These are less constrained, thus should come last
	k = len(i.outputs)
	for _, p := range a.abiInfo.OutParams() {
		for _, r := range p.Registers {
			m := archRegForAbiReg(r, c)