// It is assumed this always called after buildop.
func NeedTOCpointer(ctxt *obj.Link) bool {
	return !pfxEnabled && ctxt.Flag_shared
}

// Build the opcode table
func buildop(ctxt *obj.Link) {
	// Limit PC-relative prefix instruction usage to supported and tested targets.
	pfxEnabled = buildcfg.GOPPC64 >= 10 && buildcfg.GOOS == "linux"

		isU32 := uint64(uint32(p.From.Offset)) == uint64(p.From.Offset)
		// If prefixed instructions are supported, a 34b signed constant can be generated by one pli instruction.
		isS34 := pfxEnabled && (p.From.Offset<<30)>>30 == p.From.Offset

		// Try converting MOVD $const,Rx into ADDIS/ORIS $s32>>16,R0,Rx
		switch {
		case isS32 && p.From.Offset&0xFFFF == 0 && p.From.Offset != 0:
			p.As = AADDIS