strX int64
	numX int64 // Integer value for this label
}

// Mapping corresponds to Profile.Mapping
type Mapping struct {
	ID              uint64
	Start           uint64
	Limit           uint64
	Offset          uint64
	File            string
	BuildID         string
	HasFunctions    bool
	HasFilenames    bool
	HasLineNumbers  bool
	HasInlineFrames bool

	fileX    int64
	buildIDX int64
}

	return Xadd(&u.value, delta)
}

// Uint64 is an atomically accessed uint64 value.
//
// 8-byte aligned on all platforms, unlike a regular uint64.
//
// A Uint64 must not be copied.
type Uint64 struct {
	noCopy noCopy
	_      align64
	value  uint64
}

// Load accesses and returns the value atomically.
//
//go:nosplit
func (u *Uint64) Load() uint64 {
	return Load64(&u.value)
}

	func(b *buffer, m message) error { return decodeUint64(b, &m.(*Mapping).Start) },         // optional uint64 memory_offset = 2
	func(b *buffer, m message) error { return decodeUint64(b, &m.(*Mapping).Limit) },         // optional uint64 memory_limit = 3
	func(b *buffer, m message) error { return decodeUint64(b, &m.(*Mapping).Offset) },        // optional uint64 file_offset = 4

	return limiterEventStamp(uint64(typ)<<(64-limiterEventBits) | (uint64(now) &^ limiterEventTypeMask))
}

// duration computes the difference between now and the start time stored in the stamp.
//
// Returns 0 if the difference is negative, which may happen if now is stale or if the
// before and after timestamps cross a 2^(64-limiterEventBits) boundary.
func (s limiterEventStamp) duration(now int64) int64 {

		}
		if int64(s.FileSize) < 0 {
			return nil, &FormatError{shoff + int64(off), "invalid section size", int64(s.FileSize)}
		}
		s.sr = io.NewSectionReader(r, int64(s.Offset), int64(s.FileSize))

		if s.Flags&SHF_COMPRESSED == 0 {
			s.ReaderAt = s.sr
			s.Size = s.FileSize
		} else {
			// Read the compression header.
			switch f.Class {
			case ELFCLASS32:

			out.Write64(uint64(elf.R_390_TLS_LE64) | uint64(elfsym)<<32)
		}
	case objabi.R_TLS_IE:
		switch siz {
		default:
			return false
		case 4:
			out.Write64(uint64(elf.R_390_TLS_IEENT) | uint64(elfsym)<<32)
		}
	case objabi.R_ADDR, objabi.R_DWARFSECREF:
		switch siz {
		default:
			return false
		case 4:
			out.Write64(uint64(elf.R_390_32) | uint64(elfsym)<<32)
		case 8:

func abigen_sync_atomic_SwapInt64(addr *int64, new int64) (old int64)

//go:linkname abigen_sync_atomic_SwapUint32 sync/atomic.SwapUint32
func abigen_sync_atomic_SwapUint32(addr *uint32, new uint32) (old uint32)

//go:linkname abigen_sync_atomic_SwapUint64 sync/atomic.SwapUint64
func abigen_sync_atomic_SwapUint64(addr *uint64, new uint64) (old uint64)

//go:linkname abigen_sync_atomic_AddInt32 sync/atomic.AddInt32

//sys	Setfsuid(uid int) (err error) = SYS_SETFSUID32
//sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
//sys	SyncFileRange(fd int, off int64, n int64, flags int) (err error)
//sys	Truncate(path string, length int64) (err error) = SYS_TRUNCATE64
//sys	Ustat(dev int, ubuf *Ustat_t) (err error)
//sysnb	getgroups(n int, list *_Gid_t) (nn int, err error) = SYS_GETGROUPS32

	cmd, err := r.Next()
	if err != nil {
		return err
	}
	if cmd.Cmd != macho.LoadCmdSegment64 {
		panic("not a Segment64")
	}
	var seg macho.Segment64
	if err := r.ReadAt(0, &seg); err != nil {
		return err
	}
	seg.Offset = uint64(dwarfstart)

	if compressedSects != nil {

(SLLVconst [c] (MOVVconst [d]))  => (MOVVconst [d<<uint64(c)])
(SRLVconst [c] (MOVVconst [d]))  => (MOVVconst [int64(uint64(d)>>uint64(c))])
(SRAVconst [c] (MOVVconst [d]))  => (MOVVconst [d>>uint64(c)])
(MULV (MOVVconst [c]) (MOVVconst [d])) => (MOVVconst [c*d])
(DIVV  (MOVVconst [c]) (MOVVconst [d])) && d != 0 => (MOVVconst [c/d])
(DIVVU (MOVVconst [c]) (MOVVconst [d])) && d != 0 => (MOVVconst [int64(uint64(c)/uint64(d))])