Re: [PATCH 1/1] target/arm: Check NaN mode before silencing NaN

[Richard Henderson]

On 6/25/21 4:02 PM, Joe Komlodi wrote:
> If the CPU is running in default NaN mode (FPCR.DN == 1) and we execute
> FRSQRTE, FRECPE, or FRECPX with a signaling NaN, parts_silence_nan_frac() will
> assert due to fpst->default_nan_mode being set.
>
> To avoid this, we check to see what NaN mode we're running in before we call
> floatxx_silence_nan().
>
> Signed-off-by: Joe Komlodi<joe.komlodi@xilinx.com>
> ---
>   target/arm/helper-a64.c | 12 +++++++++---
>   target/arm/vfp_helper.c | 24 ++++++++++++++++++------
>   2 files changed, 27 insertions(+), 9 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~