enc := encode(ins.as)
	if enc == nil {
		panic("encodeU: could not encode instruction")
	}
	return imm<<12 | rd<<7 | enc.opcode
}

// encodeJImmediate encodes an immediate for a J-type RISC-V instruction.
func encodeJImmediate(imm uint32) uint32 {
	return (imm>>20)<<31 | ((imm>>1)&0x3ff)<<21 | ((imm>>11)&0x1)<<20 | ((imm>>12)&0xff)<<12
}

// encodeJ encodes a J-type RISC-V instruction.

		return val, 0, false
	}

	off := ldr.SymValue(rs) + r.Add() - pc

	switch r.Type() {
	case objabi.R_RISCV_JAL, objabi.R_RISCV_JAL_TRAMP:
		// Generate instruction immediates.
		imm, err := riscv.EncodeJImmediate(off)
		if err != nil {
			ldr.Errorf(s, "cannot encode J-type instruction relocation offset for %s: %v", ldr.SymName(rs), err)
		}
		immMask := int64(riscv.JTypeImmMask)

		val = (val &^ immMask) | int64(imm)