if at == types.TypeMem {
		a.copyOf(m0)
		return a
	}

	makeOf := func(a *Value, op Op, args []*Value) *Value {
		if a == nil {
			a = b.NewValue0(pos, op, at)
			a.AddArgs(args...)
		} else {
			a.resetArgs()
			a.Aux, a.AuxInt = nil, 0
			a.Pos, a.Op, a.Type = pos, op, at
			a.AddArgs(args...)
		}
		return a
	}

	if at.Size() == 0 {

		}
		if resname == "" {
			v = fmt.Sprintf("v%d", rr.Alloc)
		} else {
			v = resname
		}
		rr.Alloc++
		rr.add(declf(rr.Loc, v, "b.NewValue0(%s, Op%s%s, %s)", pos, oparch, op.name, typ))
		if move && top {
			// Rewrite original into a copy
			rr.add(stmtf("v.copyOf(%s)", v))
		}
	}

	if auxint != "" {

func (s *regAllocState) clobberRegs(m regMask) {
	m &= s.allocatable & s.f.Config.gpRegMask // only integer register can contain pointers, only clobber them
	for m != 0 {
		r := pickReg(m)
		m &^= 1 << r
		x := s.curBlock.NewValue0(src.NoXPos, OpClobberReg, types.TypeVoid)
		s.f.setHome(x, &s.registers[r])
	}
}

// setOrig records that c's original value is the same as
// v's original value.