Re: [PATCH 16/28] tcg: Handle new bswap flags during optimize

[Peter Maydell]

On Mon, 14 Jun 2021 at 09:45, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Notice when the input is known to be zero-extended and force
> the TCG_BSWAP_IZ flag on.  Honor the TCG_BSWAP_OS bit during
> constant folding.  Propagate the input to the output mask.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  tcg/optimize.c | 56 +++++++++++++++++++++++++++++++++++++++++++++-----
>  1 file changed, 51 insertions(+), 5 deletions(-)

Not really familiar with the TCG optimizer internals, so review
from somebody who is would be useful, but this looks plausible:

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM