Re: [Qemu-devel] [PATCH v2 1/4] tcg/optimize: fix known-zero bits for right shift ops

[Richard Henderson]

On 09/10/2013 05:27 AM, Aurelien Jarno wrote:
> 32-bit versions of sar and shr ops should not propagate known-zero bits
> from the unused 32 high bits. For sar it could even lead to wrong code
> being generated.
> 
> Cc: Richard Henderson <address@hidden>
> Cc: Paolo Bonzini <address@hidden>
> Cc: address@hidden
> Signed-off-by: Aurelien Jarno <address@hidden>
> ---
>  tcg/optimize.c |   21 +++++++++++++++++----
>  1 file changed, 17 insertions(+), 4 deletions(-)

Reviewed-by: Richard Henderson <address@hidden>


r~