Is this still targeted for stretch?
On 22.01.2017 04:19, YunQiang Su wrote:
> Package: src:gcc-6
> Version: 6.3.0-3
>
> Hi, gcc-7 has added a new option to disable madd.fmt/msub.fmt etc
> instructions,
> as
> 1. For the MIPS standard, these instructions are unfused, while on
> Loongson,
> they are fused. With these instructions enabled, some software
> may failed to
> run on Loongson.
> 2. With some test, these instructions won't take significant
> performance boost.
>
> So, we decide to disable these instructions at all.
>
> In this patch, we also:
> 1. generate fused madd4 instructions when -march=loongson3a used.
> 2. add a new option: -mlxc1-sxc1.
>
