{as: ABR, a6: C_LR, type_: 18, size: 4},                                          // blr
	{as: ABR, a6: C_CTR, type_: 18, size: 4},                                         // bctr
	{as: ABC, a1: C_U15CON, a2: C_CRBIT, a6: C_BRA, type_: 16, size: 4},              // bc bo, bi, label
	{as: ABC, a1: C_U15CON, a2: C_CRBIT, a6: C_LR, type_: 18, size: 4},               // bclr bo, bi

	BCL $20,CR0LT,$1,LR             // 4e800821
	BCL $20,CR0LT,$0,LR             // 4e800021
	BCL $20,CR0LT,LR                // 4e800021
	BCL $20,CR0GT,LR                // 4e810021
	BCL 20,CR0LT,LR                 // BCL $20,CR0LT,LR // 4e800021
	BCL 20,undefined_symbol,LR      // BCL $20,CR0LT,LR // 4e800021
	BCL 20,undefined_symbol+1,LR    // BCL $20,CR0GT,LR // 4e810021

	MOVD $0, 0(R9)          // R9 address of SAVSTACK_ASYNC
	LE_CALL                 // balr R7, R6 (return #1)
	NOPH
	MOVD R3, ret+32(FP)
	CMP  R3, $-1            // compare result to -1
	BNE  done

	// retrieve errno and errno2
	MOVD  zosLibVec<>(SB), R8
	ADD   $(__errno), R8
	LMG   0(R8), R5, R6
	LE_CALL                   // balr R7, R6 __errno (return #3)
	NOPH
	MOVWZ 0(R3), R3
	MOVD  R3, err+48(FP)

		ir.CurFunc.SetWBPos(n.Pos())
	}

	var clr ir.Nodes
	clrfn := mkcall(clrname, nil, &clr, hp, hn)
	clr.Append(clrfn)
	if hasPointers {
		// growslice will have cleared the new entries, so only
		// if growslice isn't called do we need to do the zeroing ourselves.
		nif.Body = append(nif.Body, clr...)
	} else {
		nifnz.Body = append(nifnz.Body, clr...)
	}

	typecheck.Stmts(nodes)
	walkStmtList(nodes)

// with the core of the assembler.

package arch

import (
	"cmd/internal/obj"
	"cmd/internal/obj/ppc64"
)

func jumpPPC64(word string) bool {
	switch word {
	case "BC", "BCL", "BEQ", "BGE", "BGT", "BL", "BLE", "BLT", "BNE", "BR", "BVC", "BVS", "BDNZ", "BDZ", "CALL", "JMP":
		return true
	}
	return false
}

// IsPPC64CMP reports whether the op (as defined by an ppc64.A* constant) is

		$2 ~ /^O?XTABS$/ ||
		$2 ~ /^TC[IO](ON|OFF)$/ ||
		$2 ~ /^IN_/ ||
		$2 ~ /^KCM/ ||
		$2 ~ /^LANDLOCK_/ ||
		$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
		$2 ~ /^LO_(KEY|NAME)_SIZE$/ ||
		$2 ~ /^LOOP_(CLR|CTL|GET|SET)_/ ||
		$2 == "LOOP_CONFIGURE" ||
		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|TCP|MCAST|EVFILT|NOTE|SHUT|PROT|MAP|MREMAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR|LOCAL|TCPOPT|UDP)_/ ||

			AREM, AREMU, AREMW, AREMUW,
			AADDUW, ASH1ADD, ASH1ADDUW, ASH2ADD, ASH2ADDUW, ASH3ADD, ASH3ADDUW, ASLLIUW,
			AANDN, AORN, AXNOR, AMAX, AMAXU, AMIN, AMINU, AROL, AROLW, AROR, ARORW, ARORI, ARORIW,
			ABCLR, ABCLRI, ABEXT, ABEXTI, ABINV, ABINVI, ABSET, ABSETI:
			p.Reg = p.To.Reg
		}
	}

	// Rewrite instructions with constant operands to refer to the immediate
	// form of the instruction.

func (r *rewriter) ifNext(op syntax.Operator, c int, zeroNext bool, thens ...syntax.Stmt) syntax.Stmt {
	var thenList []syntax.Stmt
	if zeroNext {
		clr := &syntax.AssignStmt{
			Lhs: r.next(),
			Rhs: r.intConst(0),
		}
		thenList = append(thenList, clr)
	}
	for _, then := range thens {
		thenList = append(thenList, then)
	}
	nif := &syntax.IfStmt{
		Cond: r.cond(op, r.next(), r.intConst(c)),

		}

		pp := s.Call(v)

		// Convert the call into a blrl with hint this is not a subroutine return.
		// The full bclrl opcode must be specified when passing a hint.
		pp.As = ppc64.ABCL
		pp.From.Type = obj.TYPE_CONST
		pp.From.Offset = ppc64.BO_ALWAYS
		pp.Reg = ppc64.REG_CR0LT // The preferred value if BI is ignored.

		} else if p.As == ACSG {
			zRSY(op_CSG, uint32(p.From.Reg), uint32(p.Reg), uint32(p.To.Reg), uint32(v), asm)
		}

	case 80: // sync
		zRR(op_BCR, 14, 0, asm) // fast-BCR-serialization

	case 81: // float to fixed and fixed to float moves (no conversion)
		switch p.As {
		case ALDGR:
			zRRE(op_LDGR, uint32(p.To.Reg), uint32(p.From.Reg), asm)
		case ALGDR: