Re: [PATCH 39/76] target/arm: Handle FPCR.NEP for BFCVT scalar

[Richard Henderson]

On 1/24/25 08:27, Peter Maydell wrote:
> Currently we implement BFCVT scalar via do_fp1_scalar().  This works
> even though BFCVT is a narrowing operation from 32 to 16 bits,
> because we can use write_fp_sreg() for float16. However, FPCR.NEP
> support requires that we use write_fp_hreg_merging() for float16
> outputs, so we can't continue to borrow the non-narrowing
> do_fp1_scalar() function for this. Split out trans_BFCVT_s()
> into its own implementation that honours FPCR.NEP.
>
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> ---
>   target/arm/tcg/translate-a64.c | 25 +++++++++++++++++++++----
>   1 file changed, 21 insertions(+), 4 deletions(-)

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

r~