tcg/i386: Handle all 8-bit extensions for i686

When we generalize {s}extract_i32, we'll lose the
specific register constraints on ext8u and ext8s.
It's just as easy to emit a couple of insns instead.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
1 file changed