// by checking typ.PtrBytes.
//
// The typ argument is the type of the space at src and dst (and the
// element type if src and dst refer to arrays) and it is optional.
// If typ is nil, the barrier will still behave as expected and typ
// is used purely as an optimization. However, it must be used with
// care.
//
// If typ is not nil, then src and dst must point to one or more values

	return (v&vp == 0 || vn&vpn == 0) && v != 0
}

// Compress mask and shift into single value of the form
// me | mb<<8 | rotate<<16 | nbits<<24 where me and mb can
// be used to regenerate the input mask.
func encodePPC64RotateMask(rotate, mask, nbits int64) int64 {
	var mb, me, mbn, men int

	// Determine boundaries and then decode them
	if mask == 0 || ^mask == 0 || rotate >= nbits {

				otxt := p.To.Target().Pc - pc

				// On loong64, the immediate value field of the conditional branch instructions
				// BFPT and BFPT is 21 bits, and the others are 16 bits. The jump target address
				// is to logically shift the immediate value in the instruction code to the left
				// by 2 bits and then sign extend.
				bound := int64(1 << (18 - 1))

				switch p.As {
				case ABFPT, ABFPF:
					bound = int64(1 << (23 - 1))

	}
}

// preprocess generates prologue and epilogue code, computes PC-relative branch
// and jump offsets, and resolves pseudo-registers.
//
// preprocess is called once per linker symbol.
//
// When preprocess finishes, all instructions in the symbol are either
// concrete, real RISC-V instructions or directive pseudo-ops like TEXT,
// PCDATA, and FUNCDATA.

21,ohsdaerpsym,?r&euefknuf.neiw,o??v&g?irp,?xi2,ytic-amil,zib,?c?e!s??hc?l?mami?rcomed??b!.&gro?moc?ten?ude?vog??b?gl??c&atnoc?e&les?rid!txen????dimhcs?e!.&eman?gro?moc?ofni?ten?ude?vog?zib??b?em?grat?id?k&circ?ram??n!.&0rab,1rab,2rab,5inu,6vnyd,7&7ndc.r,erauqs,?a&l&-morf,moob,?minifed,remacytirucesym,tadsyawla,z,?b&boi,ewdarym,g,lyltsaf:.pam,,?c&i&nagro-gnitae,tats-oieboda,?paidemym,?d&e&calpb,ziamaka,?feruza,hiamaka,irgevissam.saap.&1-&gs,nol,rf,yn,?2-&nol,yn,??nab-eht-ni,uolc&meaeboda,nievas....

21,ohsdaerpsym,?r&euefknuf.neiw,o??v&g?irp,?xi2,ytic-amil,zib,?c?e!s??hc?l?mami?rcomed??b!.&gro?moc?ten?ude?vog??b?gl??c&atnoc?e&les?rid!txen????dimhcs?e!.&eman?gro?moc?ofni?ten?ude?vog?zib??b?em?grat?id?k&circ?ram??n!.&0rab,1rab,2rab,5inu,6vnyd,7&7ndc.r,erauqs,?a&l&-morf,moob,?minifed,remacytirucesym,tadsyawla,z,?b&boi,ewdarym,g,lyltsaf:.pam,,?c&i&nagro-gnitae,tats-oieboda,?paidemym,?d&e&calpb,ziamaka,?feruza,hiamaka,irgevissam.saap.&1-&gs,nol,rf,yn,?2-&nol,yn,??nab-eht-ni,uolc&meaeboda,nievas....

(ADD x (SRA y z)) => (ADDshiftRAreg x y z)
(ADC x (SLLconst [c] y) flags) => (ADCshiftLL x y [c] flags)
(ADC x (SRLconst [c] y) flags) => (ADCshiftRL x y [c] flags)
(ADC x (SRAconst [c] y) flags) => (ADCshiftRA x y [c] flags)
(ADC x (SLL y z) flags) => (ADCshiftLLreg x y z flags)
(ADC x (SRL y z) flags) => (ADCshiftRLreg x y z flags)
(ADC x (SRA y z) flags) => (ADCshiftRAreg x y z flags)