}
		}
	}
}

func OP(x uint32, y uint32) uint32 {
	return x<<3 | y<<0
}

func SP(x uint32, y uint32) uint32 {
	return x<<29 | y<<26
}

func OP_TEN(x uint32, y uint32) uint32 {
	return x<<21 | y<<10
}

// r1 -> rk
// r2 -> rj
// r3 -> rd
func OP_RRR(op uint32, r1 uint32, r2 uint32, r3 uint32) uint32 {
	return op | (r1&0x1F)<<10 | (r2&0x1F)<<5 | (r3&0x1F)<<0

(CMPWconst (MOVDconst [x]) [y]) && int32(x)==int32(y) => (FlagEQ)
(CMPWconst (MOVDconst [x]) [y]) && int32(x)<int32(y)  => (FlagLT)
(CMPWconst (MOVDconst [x]) [y]) && int32(x)>int32(y)  => (FlagGT)

(CMPconst (MOVDconst [x]) [y]) && x==y => (FlagEQ)
(CMPconst (MOVDconst [x]) [y]) && x<y  => (FlagLT)
(CMPconst (MOVDconst [x]) [y]) && x>y  => (FlagGT)

(CMPWUconst (MOVDconst [x]) [y]) && int32(x)==int32(y)  => (FlagEQ)

func nlz32(x int32) int { return bits.LeadingZeros32(uint32(x)) }
func nlz16(x int16) int { return bits.LeadingZeros16(uint16(x)) }
func nlz8(x int8) int   { return bits.LeadingZeros8(uint8(x)) }

// ntzX returns the number of trailing zeros.
func ntz64(x int64) int { return bits.TrailingZeros64(uint64(x)) }
func ntz32(x int32) int { return bits.TrailingZeros32(uint32(x)) }

	l := st.l
	var start, end uint32
	switch kind {
	case pkgDef:
		start = 0
		end = uint32(r.ndef)
	case hashed64Def:
		start = uint32(r.ndef)
		end = uint32(r.ndef + r.nhashed64def)
	case hashedDef:
		start = uint32(r.ndef + r.nhashed64def)
		end = uint32(r.ndef + r.nhashed64def + r.nhasheddef)
	case nonPkgDef:
		start = uint32(r.ndef + r.nhashed64def + r.nhasheddef)

						slotLoc := state.currentState.slots[slotID]
						if slotLoc.absent() {
							startState.Delete(int32(slotID))
							continue
						}
						old := startState.Find(int32(slotID)) // do NOT replace existing values
						if oldLS, ok := old.(*liveSlot); !ok || oldLS.VarLoc != slotLoc {
							startState.Insert(int32(slotID),
								&liveSlot{VarLoc: slotLoc})
						}
					}
					locs.endState = startState
				}

		{name: "SCVTFWS", argLength: 1, reg: gpfp, asm: "SCVTFWS"},   // int32 -> float32
		{name: "SCVTFWD", argLength: 1, reg: gpfp, asm: "SCVTFWD"},   // int32 -> float64
		{name: "UCVTFWS", argLength: 1, reg: gpfp, asm: "UCVTFWS"},   // uint32 -> float32
		{name: "UCVTFWD", argLength: 1, reg: gpfp, asm: "UCVTFWD"},   // uint32 -> float64
		{name: "SCVTFS", argLength: 1, reg: gpfp, asm: "SCVTFS"},     // int64 -> float32

	c2 := bgetc(f)
	c3 := bgetc(f)
	c4 := bgetc(f)
	f.MustSeek(start, 0)

	unit := &sym.CompilationUnit{Lib: lib}
	lib.Units = append(lib.Units, unit)

	magic := uint32(c1)<<24 | uint32(c2)<<16 | uint32(c3)<<8 | uint32(c4)
	if magic == 0x7f454c46 { // \x7F E L F
		ldelf := func(ctxt *Link, f *bio.Reader, pkg string, length int64, pn string) {

//sys	GetLengthSid(sid *SID) (len uint32) = advapi32.GetLengthSid
//sys	CopySid(destSidLen uint32, destSid *SID, srcSid *SID) (err error) = advapi32.CopySid
//sys	AllocateAndInitializeSid(identAuth *SidIdentifierAuthority, subAuth byte, subAuth0 uint32, subAuth1 uint32, subAuth2 uint32, subAuth3 uint32, subAuth4 uint32, subAuth5 uint32, subAuth6 uint32, subAuth7 uint32, sid **SID) (err error) = advapi32.AllocateAndInitializeSid

	c.bool = c.Ident("bool")
	c.byte = c.Ident("byte")
	c.int8 = c.Ident("int8")
	c.int16 = c.Ident("int16")
	c.int32 = c.Ident("int32")
	c.int64 = c.Ident("int64")
	c.uint8 = c.Ident("uint8")
	c.uint16 = c.Ident("uint16")
	c.uint32 = c.Ident("uint32")
	c.uint64 = c.Ident("uint64")
	c.uintptr = c.Ident("uintptr")
	c.float32 = c.Ident("float32")
	c.float64 = c.Ident("float64")

type atomicLoadPkgFlags struct {
	bits atomic.Int32
}

// update sets the given flags in af (in addition to any flags already set).
//
// update returns the previous flag state so that the caller may determine which
// flags were newly-set.
func (af *atomicLoadPkgFlags) update(flags loadPkgFlags) (old loadPkgFlags) {
	for {
		old := af.bits.Load()
		new := old | int32(flags)