LoongArch: Use __builtin_{fmax,fmaxf,fmin,fminf} with GCC >= 13

  GCC 13 compiles these built-ins to {fmax,fmin}.{s/d} instruction, use
them instead of the generic implementation.

Link: https://gcc.gnu.org/r13-2085
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
---
 sysdeps/loongarch/fpu/math-use-builtins-fmax.h | 10 ++++++++++
 sysdeps/loongarch/fpu/math-use-builtins-fmin.h | 10 ++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 sysdeps/loongarch/fpu/math-use-builtins-fmax.h
 create mode 100644 sysdeps/loongarch/fpu/math-use-builtins-fmin.h
  

Gentle ping :)

On Sat, 2022-08-20 at 16:43 +0800, Xi Ruoyao wrote:
> GCC 13 compiles these built-ins to {fmax,fmin}.{s/d} instruction, use
> them instead of the generic implementation.
> 
> Link: https://gcc.gnu.org/r13-2085
> Signed-off-by: Xi Ruoyao <xry111@xry111.site>
> ---
>  sysdeps/loongarch/fpu/math-use-builtins-fmax.h | 10 ++++++++++
>  sysdeps/loongarch/fpu/math-use-builtins-fmin.h | 10 ++++++++++
>  2 files changed, 20 insertions(+)
>  create mode 100644 sysdeps/loongarch/fpu/math-use-builtins-fmax.h
>  create mode 100644 sysdeps/loongarch/fpu/math-use-builtins-fmin.h
> 
> diff --git a/sysdeps/loongarch/fpu/math-use-builtins-fmax.h
> b/sysdeps/loongarch/fpu/math-use-builtins-fmax.h
> new file mode 100644
> index 0000000000..5d22567bd3
> --- /dev/null
> +++ b/sysdeps/loongarch/fpu/math-use-builtins-fmax.h
> @@ -0,0 +1,10 @@
> +#if __GNUC_PREREQ (13, 0)
> +# define USE_FMAX_BUILTIN 1
> +# define USE_FMAXF_BUILTIN 1
> +#else
> +# define USE_FMAX_BUILTIN 0
> +# define USE_FMAXF_BUILTIN 0
> +#endif
> +
> +#define USE_FMAXL_BUILTIN 0
> +#define USE_FMAXF128_BUILTIN 0
> diff --git a/sysdeps/loongarch/fpu/math-use-builtins-fmin.h
> b/sysdeps/loongarch/fpu/math-use-builtins-fmin.h
> new file mode 100644
> index 0000000000..4d28b41c0d
> --- /dev/null
> +++ b/sysdeps/loongarch/fpu/math-use-builtins-fmin.h
> @@ -0,0 +1,10 @@
> +#if __GNUC_PREREQ (13, 0)
> +# define USE_FMIN_BUILTIN 1
> +# define USE_FMINF_BUILTIN 1
> +#else
> +# define USE_FMIN_BUILTIN 0
> +# define USE_FMINF_BUILTIN 0
> +#endif
> +
> +#define USE_FMINL_BUILTIN 0
> +#define USE_FMINF128_BUILTIN 0
  

On 20/08/22 05:43, Xi Ruoyao wrote:
> GCC 13 compiles these built-ins to {fmax,fmin}.{s/d} instruction, use
> them instead of the generic implementation.
> 
> Link: https://gcc.gnu.org/r13-2085
> Signed-off-by: Xi Ruoyao <xry111@xry111.site>

LGTM, thanks.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

> ---
>  sysdeps/loongarch/fpu/math-use-builtins-fmax.h | 10 ++++++++++
>  sysdeps/loongarch/fpu/math-use-builtins-fmin.h | 10 ++++++++++
>  2 files changed, 20 insertions(+)
>  create mode 100644 sysdeps/loongarch/fpu/math-use-builtins-fmax.h
>  create mode 100644 sysdeps/loongarch/fpu/math-use-builtins-fmin.h
> 
> diff --git a/sysdeps/loongarch/fpu/math-use-builtins-fmax.h b/sysdeps/loongarch/fpu/math-use-builtins-fmax.h
> new file mode 100644
> index 0000000000..5d22567bd3
> --- /dev/null
> +++ b/sysdeps/loongarch/fpu/math-use-builtins-fmax.h
> @@ -0,0 +1,10 @@
> +#if __GNUC_PREREQ (13, 0)
> +# define USE_FMAX_BUILTIN 1
> +# define USE_FMAXF_BUILTIN 1
> +#else
> +# define USE_FMAX_BUILTIN 0
> +# define USE_FMAXF_BUILTIN 0
> +#endif
> +
> +#define USE_FMAXL_BUILTIN 0
> +#define USE_FMAXF128_BUILTIN 0
> diff --git a/sysdeps/loongarch/fpu/math-use-builtins-fmin.h b/sysdeps/loongarch/fpu/math-use-builtins-fmin.h
> new file mode 100644
> index 0000000000..4d28b41c0d
> --- /dev/null
> +++ b/sysdeps/loongarch/fpu/math-use-builtins-fmin.h
> @@ -0,0 +1,10 @@
> +#if __GNUC_PREREQ (13, 0)
> +# define USE_FMIN_BUILTIN 1
> +# define USE_FMINF_BUILTIN 1
> +#else
> +# define USE_FMIN_BUILTIN 0
> +# define USE_FMINF_BUILTIN 0
> +#endif
> +
> +#define USE_FMINL_BUILTIN 0
> +#define USE_FMINF128_BUILTIN 0
  

On Mon, 2022-08-29 at 09:44 -0300, Adhemerval Zanella Netto wrote:
> 
> 
> On 20/08/22 05:43, Xi Ruoyao wrote:
> > GCC 13 compiles these built-ins to {fmax,fmin}.{s/d} instruction, use
> > them instead of the generic implementation.
> > 
> > Link: https://gcc.gnu.org/r13-2085
> > Signed-off-by: Xi Ruoyao <xry111@xry111.site>
> 
> LGTM, thanks.
> 
> Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

Thanks, I don't have a write access to glibc.git and need others' help
to push the patch :).
  

I have tested it and pushed.

在 2022/8/30 下午1:31, Xi Ruoyao 写道:
> On Mon, 2022-08-29 at 09:44 -0300, Adhemerval Zanella Netto wrote:
>>
>> On 20/08/22 05:43, Xi Ruoyao wrote:
>>> GCC 13 compiles these built-ins to {fmax,fmin}.{s/d} instruction, use
>>> them instead of the generic implementation.
>>>
>>> Link: https://gcc.gnu.org/r13-2085
>>> Signed-off-by: Xi Ruoyao <xry111@xry111.site>
>> LGTM, thanks.
>>
>> Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
> Thanks, I don't have a write access to glibc.git and need others' help
> to push the patch :).
>