AVMSLEOG

	ANOPH // NOP

	// binary
	ABYTE
	AWORD
	ADWORD

	// Breakpoint
	ABRRK

	// end marker
	ALAST

	// aliases
	ABR = obj.AJMP
	ABL = obj.ACALL

	"fmt"
	"internal/abi"
	"internal/buildcfg"
	"log"
	"math/bits"
	"strings"
)

func buildop(ctxt *obj.Link) {}

func jalToSym(ctxt *obj.Link, p *obj.Prog, lr int16) {
	switch p.As {
	case obj.ACALL, obj.AJMP, obj.ARET, obj.ADUFFZERO, obj.ADUFFCOPY:
	default:
		ctxt.Diag("unexpected Prog in jalToSym: %v", p)
		return
	}

	p.As = AJAL
	p.Mark |= NEED_JAL_RELOC
	p.From.Type = obj.TYPE_REG
	p.From.Reg = lr

	AXVCVUXDSP
	AXVCVUXWSP
	AXSMAXJDP
	AXSMINJDP
	ALASTAOUT // The last instruction in this list. Also the first opcode generated by ppc64map.

	// aliases
	ABR   = obj.AJMP
	ABL   = obj.ACALL
	ALAST = ALASTGEN // The final enumerated instruction value + 1. This is used to size the oprange table.

		s.TailCall(v)
	case ssa.OpS390XLoweredWB:
		p := s.Prog(obj.ACALL)
		p.To.Type = obj.TYPE_MEM
		p.To.Name = obj.NAME_EXTERN
		// AuxInt encodes how many buffer entries we need.
		p.To.Sym = ir.Syms.GCWriteBarrier[v.AuxInt-1]
	case ssa.OpS390XLoweredPanicBoundsA, ssa.OpS390XLoweredPanicBoundsB, ssa.OpS390XLoweredPanicBoundsC:
		p := s.Prog(obj.ACALL)
		p.To.Type = obj.TYPE_MEM
		p.To.Name = obj.NAME_EXTERN

		p1 := obj.Appendp(p, c.newprog)
		p1.As = AADD
		p1.From.Type = obj.TYPE_CONST
		p1.From.Offset = offset
		p1.To.Type = obj.TYPE_REG
		p1.To.Reg = REGTMP
		p2 := obj.Appendp(p1, c.newprog)
		p2.As = obj.ACALL
		p2.To.Type = obj.TYPE_REG
		p2.To.Reg = REGTMP
	}

	// We only care about global data: NAME_EXTERN means a global
	// symbol in the Go sense, and p.Sym.Local is true for a few
	// internally defined symbols.

	AVUSHLL2
	AVUSHR
	AVUSRA
	AVUXTL
	AVUXTL2
	AVUZP1
	AVUZP2
	AVXAR
	AVZIP1
	AVZIP2
	AWFE
	AWFI
	AWORD
	AYIELD
	ALAST
	AB  = obj.AJMP
	ABL = obj.ACALL
)

const (
	// shift types
	SHIFT_LL  = 0 << 22
	SHIFT_LR  = 1 << 22
	SHIFT_AR  = 2 << 22
	SHIFT_ROR = 3 << 22
)

// Arrangement for ARM64 SIMD instructions
const (

	}
	for i, s := range arm.Anames {
		if obj.As(i) >= obj.A_ARCHSPECIFIC {
			instructions[s] = obj.As(i) + obj.ABaseARM
		}
	}
	// Annoying aliases.
	instructions["B"] = obj.AJMP
	instructions["BL"] = obj.ACALL
	// MCR differs from MRC by the way fields of the word are encoded.
	// (Details in arm.go). Here we add the instruction so parse will find
	// it, but give it an opcode number known only to us.
	instructions["MCR"] = aMCR

		}
		source = &p.From
	} else if p.To.Name == obj.NAME_EXTERN && !p.To.Sym.Local() {
		source = &p.To
	} else {
		return
	}
	if p.As == obj.ATEXT || p.As == obj.AFUNCDATA || p.As == obj.ACALL || p.As == obj.ARET || p.As == obj.AJMP {
		return
	}
	if source.Sym.Type == objabi.STLSBSS {
		return
	}
	if source.Type != obj.TYPE_MEM {
		ctxt.Diag("don't know how to handle %v with -shared", p)
	}

	{ABTSQ, ybtl, Pw, opBytes{0x0f, 0xba, 05, 0x0f, 0xab}},
	{ABTSW, ybtl, Pq, opBytes{0xba, 05, 0xab}},
	{ABTW, ybtl, Pq, opBytes{0xba, 04, 0xa3}},
	{ABYTE, ybyte, Px, opBytes{1}},
	{obj.ACALL, ycall, Px, opBytes{0xff, 02, 0xff, 0x15, 0xe8}},
	{ACBW, ynone, Pe, opBytes{0x98}},
	{ACDQ, ynone, Px, opBytes{0x99}},
	{ACDQE, ynone, Pw, opBytes{0x98}},
	{ACLAC, ynone, Pm, opBytes{01, 0xca}},

		}
		source = &p.From
	} else if p.To.Name == obj.NAME_EXTERN && !p.To.Sym.Local() {
		source = &p.To
	} else {
		return
	}
	if p.As == obj.ATEXT || p.As == obj.AFUNCDATA || p.As == obj.ACALL || p.As == obj.ARET || p.As == obj.AJMP {
		return
	}
	if source.Sym.Type == objabi.STLSBSS {
		return
	}
	if source.Type != obj.TYPE_MEM {
		c.ctxt.Diag("don't know how to handle %v with -dynlink", p)
	}