> 在 2016年12月22日，13:11，Paul Hua 写道：
>
> Hi,
>
>> +On MIPS targets, set the @option{-mno-unfused-madd4} option by default.
>> +On some platform, like Loongson 3A/3B 1000/2000/3000, madd.fmt/msub.fmt is
>> +broken, which may which may generate wrong calculator result.
>
> The Loongson 3A/3B 1000/
Hi,
> +On MIPS targets, set the @option{-mno-unfused-madd4} option by default.
> +On some platform, like Loongson 3A/3B 1000/2000/3000, madd.fmt/msub.fmt is
> +broken, which may which may generate wrong calculator result.
The Loongson 3A/3B 1000/2000/3000 madd.fmt/msub.fmt are fused madd instruct
[PATCH] Add options to disable/enable madd.fmt/msub.fmt instructions
The build-time options are:
--with-unfused-madd4=yes/no
--without-unfused-madd4
The runtime options are:
-munfused-madd4
-mno-unfused-madd4
These options are needed due to madd.fmt/msub.fmt on some
platform is broken, w
