// we are still in function prologue. We need to fix the
	// SP data and PCDATA.
	spfix := obj.Appendp(last, newprog)
	spfix.As = obj.ANOP
	spfix.Spadj = -framesize

	pcdata := ctxt.EmitEntryStackMap(cursym, spfix, newprog)
	spill := ctxt.StartUnsafePoint(pcdata, newprog)
	pcdata = cursym.Func().SpillRegisterArgs(spill, newprog)

	call := obj.Appendp(pcdata, newprog)

	p.As = obj.ANOP // zero-width place holder

	if q != nil {
		q.To.SetTarget(p)
	}

	// Spill the register args that could be clobbered by the
	// morestack code.

	spill := c.cursym.Func().SpillRegisterArgs(p, c.newprog)

	// MOVD LR, R5
	p = obj.Appendp(spill, c.newprog)
	p.As = AMOVD
	p.From.Type = obj.TYPE_REG
	p.From.Reg = REG_LR
	p.To.Type = obj.TYPE_REG

	add = AADDV
	mov = AMOVV
	if c.ctxt.Flag_maymorestack != "" {
		// Save LR and REGCTXT.
		frameSize := 2 * c.ctxt.Arch.PtrSize

		p = c.ctxt.StartUnsafePoint(p, c.newprog)

		// Spill Arguments. This has to happen before we open
		// any more frame space.
		p = c.cursym.Func().SpillRegisterArgs(p, c.newprog)

		// MOV	REGLINK, -8/-16(SP)
		p = obj.Appendp(p, c.newprog)
		p.As = mov

	{name: "ArraySelect", argLength: 1, aux: "Int64"}, // arg0=array, auxint=index. Returns a[i].

	// Spill&restore ops for the register allocator. These are
	// semantically identical to OpCopy; they do not take/return
	// stores like regular memory ops do. We can get away without memory
	// args because we know there is no aliasing of spill slots on the stack.
	{name: "StoreReg", argLength: 1},
	{name: "LoadReg", argLength: 1},

	for i, n := range fn.Dcl {
		if n.Op() != ir.ONAME || n.Class != ir.PAUTO && !(n.Class == ir.PPARAMOUT && n.IsOutputParamInRegisters()) {
			// i.e., stack assign if AUTO, or if PARAMOUT in registers (which has no predefined spill locations)
			continue
		}
		if mls != nil && mls.Subsumed(n) {
			continue
		}
		if !n.Used() {
			fn.DebugInfo.(*ssa.FuncDebug).OptDcl = fn.Dcl[i:]
			fn.Dcl = fn.Dcl[:i]
			break
		}

	pcdata = c.ctxt.StartUnsafePoint(pcdata, c.newprog)

	if q != nil {
		q.To.SetTarget(pcdata)
	}
	bls.To.SetTarget(pcdata)

	spill := c.cursym.Func().SpillRegisterArgs(pcdata, c.newprog)

	// MOV	LR, R3
	movlr := obj.Appendp(spill, c.newprog)
	movlr.As = AMOVD
	movlr.From.Type = obj.TYPE_REG
	movlr.From.Reg = REGLINK
	movlr.To.Type = obj.TYPE_REG
	movlr.To.Reg = REG_R3

	debug := movlr
	if false {

	// RegArgs is a slice of register-memory pairs that must be spilled and unspilled in the uncommon path of function entry.
	RegArgs []Spill
	// OwnAux describes parameters and results for this function.
	OwnAux *AuxCall
	// CloSlot holds the compiler-synthesized name (".closureptr")
	// where we spill the closure pointer for range func bodies.
	CloSlot *ir.Name

}
func cmpstring2(x, y string) int {
	// We want to fail if there are two calls to cmpstring.
	// They will both have the same line number, so a test
	// like in cmpstring1 will not work. Instead, we
	// look for spill/restore instructions, which only
	// need to exist if there are 2 calls.
	//amd64:-`MOVQ\t.*\(SP\)`
	return cmp.Compare(x, y)

			if v.Op == OpSPanchored {
				// Free this value
				if v.Uses != 0 {
					base.Fatalf("SPAnchored still has %d uses", v.Uses)
				}
				v.resetArgs()
				f.freeValue(v)
			} else {
				if opcodeTable[v.Op].nilCheck {
					if v.Uses != 0 {
						base.Fatalf("nilcheck still has %d uses", v.Uses)
					}
					// We can't delete the nil check, but we mark
					// it as having void type so regalloc won't

	return c.registers[m].objNum
}

// ArgWidth returns the amount of stack needed for all the inputs
// and outputs of a function or method, including ABI-defined parameter
// slots and ABI-defined spill slots for register-resident parameters.
//
// The name is taken from the types package's ArgWidth(<function type>),
// which predated changes to the ABI; this version handles those changes.
func (a *AuxCall) ArgWidth() int64 {