func (l *Loader) SetRelocVariant(s Sym, ri int, v sym.RelocVariant) {
	// sanity check
	if relocs := l.Relocs(s); ri >= relocs.Count() {
		panic("invalid relocation ID")
	}
	if l.relocVariant == nil {
		l.relocVariant = make(map[relocId]sym.RelocVariant)
	}
	if v != 0 {
		l.relocVariant[relocId{s, ri}] = v
	} else {
		delete(l.relocVariant, relocId{s, ri})
	}
}

		return packInstPair(target, o1, o2), nExtReloc, true
	}

	return val, nExtReloc, false
}

func archrelocvariant(target *ld.Target, ldr *loader.Loader, r loader.Reloc, rv sym.RelocVariant, s loader.Sym, t int64, p []byte) (relocatedOffset int64) {
	rs := r.Sym()
	switch rv & sym.RV_TYPE_MASK {
	default:
		ldr.Errorf(s, "unexpected relocation variant %d", rv)
		fallthrough

			st.err.Errorf(s, "unreachable sym in relocation: %s", ldr.SymName(rs))
		}

		var rv sym.RelocVariant
		if target.IsPPC64() || target.IsS390X() {
			rv = ldr.RelocVariant(s, ri)
		}

		// TODO(mundaym): remove this special case - see issue 14218.
		if target.IsS390X() {
			switch rt {
			case objabi.R_PCRELDBL:
				rt = objabi.R_PCREL

	// to-be-relocated data item (from sym.P). Return is an updated
	// offset value.
	Archrelocvariant func(target *Target, ldr *loader.Loader, rel loader.Reloc,
		rv sym.RelocVariant, sym loader.Sym, offset int64, data []byte) (relocatedOffset int64)

	// Generate a trampoline for a call from s to rs if necessary. ri is
	// index of the relocation.