Re: [PATCH 17/84] tcg/i386: Conditionalize tcg_out_extu_i32_i64

[Alex Bennée]

Richard Henderson <richard.henderson@linaro.org> writes:

> Since TCG_TYPE_I32 values are kept zero-extended in registers, via
> omission of the REXW bit, we need not extend if the register matches.
> This is already relied upon by qemu_{ld,st}.
>
> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro