The function that makes NaN-boxing when a 32-bit value is assigned
to a 64-bit FP register is split out to a helper gen_nanbox_fpr().
Then it is applied in translating of the FLW instruction.
Signed-off-by: NIan Jiang <ianjiang.ict@gmail.com>
Message-Id: <20200128003707.17028-1-ianjiang.ict@gmail.com>
Reviewed-by: NAlistair Francis <alistair.francis@wdc.com>
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: NAlistair Francis <alistair.francis@wdc.com>