//     is 5 (use spaces to distinguish precedence) in Normal mode
//     and 4 (never use spaces) in Compact mode.
//
//  3. If there are no level 4 operators or no level 5 operators, then the
//     cutoff is 6 (always use spaces) in Normal mode
//     and 4 (never use spaces) in Compact mode.
func (p *printer) binaryExpr(x *ast.BinaryExpr, prec1, cutoff, depth int) {
	prec := x.Op.Precedence()

	maxRecommendation := prenormalizedDesiredReplicas
	foundOldSample := false
	oldSampleIndex := 0
	cutoff := time.Now().Add(-a.downscaleStabilisationWindow)

	a.recommendationsLock.Lock()
	defer a.recommendationsLock.Unlock()
	for i, rec := range a.recommendations[key] {
		if rec.timestamp.Before(cutoff) {
			foundOldSample = true
			oldSampleIndex = i
		} else if rec.recommendation > maxRecommendation {

		// into a register and use that register for the entire loop
		// instead of repeatedly reading from memory.
		// Handling fewer than 8 bits here makes the general loop simpler.
		// The cutoff is goarch.PtrSize*8 - 7 to guarantee that when we add
		// the pattern to a bit buffer holding at most 7 bits (a partial byte)
		// it will not overflow.
		src := dst
		const maxBits = goarch.PtrSize*8 - 7

			name = append(name, '.')
			currOff = endOff
		case 0xC0: // Pointer
			if currOff >= len(msg) {
				return off, errInvalidPtr
			}
			c1 := msg[currOff]
			currOff++
			if ptr == 0 {
				newOff = currOff
			}
			// Don't follow too many pointers, maybe there's a loop.
			if ptr++; ptr > 10 {
				return off, errTooManyPtr
			}
			currOff = (c^0xC0)<<8 | int(c1)
		default:

	Listlen  uint32 // Length of import file ID string table
	Lnimpid  int32  // Number of import file IDs
	Lstlen   uint32 // Length of string table
	Limpoff  uint64 // Offset to start of import file IDs
	Lstoff   uint64 // Offset to start of string table
	Lsymoff  uint64 // Offset to start of symbol table
	Lrldoff  uint64 // Offset to start of relocation entries
}

// Loader Symbol
type XcoffLdSym64 struct {

		toctramp := ldr.CreateSymForUpdate("TOC."+ldr.SymName(tramp.Sym()), 0)
		toctramp.SetType(sym.SXCOFFTOC)
		toctramp.AddAddrPlus(ctxt.Arch, target, offset)

		r, _ := tramp.AddRel(objabi.R_ADDRPOWER_TOCREL_DS)
		r.SetOff(0)
		r.SetSiz(8) // generates 2 relocations: HA + LO
		r.SetSym(toctramp.Sym())
	} else if hasPCrel {
		// pla r12, addr (PCrel). This works for static or PIC, with or without a valid TOC pointer.

(MOVQload [off] {sym} (SB) _) && symIsRO(sym) => (MOVQconst [int64(read64(sym, int64(off), config.ctxt.Arch.ByteOrder))])
(MOVOstore [dstOff] {dstSym} ptr (MOVOload [srcOff] {srcSym} (SB) _) mem) && symIsRO(srcSym) =>
  (MOVQstore [dstOff+8] {dstSym} ptr (MOVQconst [int64(read64(srcSym, int64(srcOff)+8, config.ctxt.Arch.ByteOrder))])
    (MOVQstore [dstOff] {dstSym} ptr (MOVQconst [int64(read64(srcSym, int64(srcOff), config.ctxt.Arch.ByteOrder))]) mem))

	ctxt.loader.SetSymValue(s, v)
	return s
}

func datoff(ldr *loader.Loader, s loader.Sym, addr int64) int64 {
	if uint64(addr) >= Segdata.Vaddr {
		return int64(uint64(addr) - Segdata.Vaddr + Segdata.Fileoff)
	}
	if uint64(addr) >= Segtext.Vaddr {
		return int64(uint64(addr) - Segtext.Vaddr + Segtext.Fileoff)
	}
	ldr.Errorf(s, "invalid datoff %#x", addr)
	return 0
}

	if s == 0 {
		panic("bad symbol in shsym2")
	}
	addr := ldr.SymValue(s)
	if sh.Flags&uint64(elf.SHF_ALLOC) != 0 {
		sh.Addr = uint64(addr)
	}
	sh.Off = uint64(datoff(ldr, s, addr))
	sh.Size = uint64(ldr.SymSize(s))
}

func phsh(ph *ElfPhdr, sh *ElfShdr) {
	ph.Vaddr = sh.Addr
	ph.Paddr = ph.Vaddr
	ph.Off = sh.Off
	ph.Filesz = sh.Size
	ph.Memsz = sh.Size

		// Walk down the dominator tree looking for a good place to
		// put the spill of v.  At the start "best" is the best place
		// we have found so far.
		// TODO: find a way to make this O(1) without arbitrary cutoffs.
		if v == nil {
			panic(fmt.Errorf("nil v, s.orig[%d], vi = %v, spill = %s", i, vi, spill.LongString()))
		}
		best := v.Block
		bestArg := v
		var bestDepth int16