The else after the TCG_TARGET_HAS_extract2 test is exactly
the same as what tcg_gen_extract2_i32 would emit itself.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>