[PATCH 1/1] LoongArch: Hard Float Support Of Math Functions.

[Xi Ruoyao]

On Thu, 2022-11-03 at 09:42 -0300, Adhemerval Zanella Netto via Libc-alpha wrote:
> On 03/11/22 09:14, Xiaolin Tang wrote:

> > fcopysign.{s/d                   __copysign{f/ }
> 
> GCC already implements a generic builtin copysign that expands it without a 
> libcall, I prefer to implement it on compiler (which I presume it will be on
> 13, since on gcc 12 I do see fcopysign.d).  I will send a patch to remove
> the RISCV version as well.

GCC trunk still generates some nasty thing for __builtin_copysign yet:

	movfr2gr.d	$r12,$f1
	fabs.d	$f0,$f0
	bge	$r12,$r0,.L1
	fneg.d	$f0,$f0
.L1:
	jr	$r1

Fortunately we still have ten days before GCC 13 stage 1 ends.  I'll try
to fix it...

-- 
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University