mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
powerpc: Add support for fmaf128() in hardware
Adds a POWER9 version of fmaf128 that uses the xsmaddqp instruction. Co-authored-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
Raphael Moreira Zinsly
Tulio Magno Quites Machado Filho
parent
1a044511a3
commit
66807aebad
@ -1,5 +1,9 @@
|
||||
ifeq ($(subdir),math)
|
||||
libm-sysdep_routines += w_sqrtf128-power9 w_sqrtf128-ppc64le
|
||||
libm-sysdep_routines += s_fmaf128-ppc64 s_fmaf128-power9 \
|
||||
w_sqrtf128-power9 w_sqrtf128-ppc64le
|
||||
|
||||
CFLAGS-s_fmaf128-ppc64.c += -mfloat128 $(no-gnu-attribute-CFLAGS)
|
||||
CFLAGS-s_fmaf128-power9.c += -mfloat128 -mcpu=power9 $(no-gnu-attribute-CFLAGS)
|
||||
|
||||
CFLAGS-w_sqrtf128-ppc64le.c += -mfloat128 $(no-gnu-attribute-CFLAGS)
|
||||
CFLAGS-w_sqrtf128-power9.c += -mfloat128 -mcpu=power9 $(no-gnu-attribute-CFLAGS)
|
||||
|
||||
@ -0,0 +1,26 @@
|
||||
/* __fmaf128() PowerPC64LE POWER9 version.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <libm-alias-float128.h>
|
||||
|
||||
#undef libm_alias_float128
|
||||
#define libm_alias_float128(a, b)
|
||||
|
||||
#define __fmaf128 __fmaf128_power9
|
||||
|
||||
#include <sysdeps/powerpc/powerpc64/le/power9/fpu/s_fmaf128.c>
|
||||
24
sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128-ppc64.c
Normal file
24
sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128-ppc64.c
Normal file
@ -0,0 +1,24 @@
|
||||
/* __fmaf128() PowerPC64LE version.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#undef weak_alias
|
||||
#define weak_alias(a, b)
|
||||
|
||||
#define __fmaf128 __fmaf128_ppc64
|
||||
|
||||
#include <sysdeps/ieee754/float128/s_fmaf128.c>
|
||||
36
sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128.c
Normal file
36
sysdeps/powerpc/powerpc64/le/fpu/multiarch/s_fmaf128.c
Normal file
@ -0,0 +1,36 @@
|
||||
/* Multiple versions of fmaf128.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <libm-alias-float128.h>
|
||||
|
||||
#define fmaf128 __redirect_fmaf128
|
||||
#include <math.h>
|
||||
#undef fmaf128
|
||||
|
||||
#include <math_ldbl_opt.h>
|
||||
#include "init-arch.h"
|
||||
|
||||
extern __typeof (__redirect_fmaf128) __fmaf128_ppc64 attribute_hidden;
|
||||
extern __typeof (__redirect_fmaf128) __fmaf128_power9 attribute_hidden;
|
||||
|
||||
libc_ifunc_redirected (__redirect_fmaf128, __fmaf128,
|
||||
(hwcap2 & PPC_FEATURE2_HAS_IEEE128)
|
||||
? __fmaf128_power9
|
||||
: __fmaf128_ppc64);
|
||||
|
||||
libm_alias_float128 (__fma, fma)
|
||||
36
sysdeps/powerpc/powerpc64/le/power9/fpu/s_fmaf128.c
Normal file
36
sysdeps/powerpc/powerpc64/le/power9/fpu/s_fmaf128.c
Normal file
@ -0,0 +1,36 @@
|
||||
/* Compute x * y + z as a ternary operation for _Float128. POWER9 version.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
In addition to the permissions in the GNU Lesser General Public
|
||||
License, the Free Software Foundation gives you unlimited
|
||||
permission to link the compiled version of this file into
|
||||
combinations with other programs, and to distribute those
|
||||
combinations without any restriction coming from the use of this
|
||||
file. (The Lesser General Public License restrictions do apply in
|
||||
other respects; for example, they cover modification of the file,
|
||||
and distribution when not linked into a combine executable.)
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <libm-alias-float128.h>
|
||||
|
||||
__float128
|
||||
__fmaf128 (__float128 x, __float128 y, __float128 z)
|
||||
{
|
||||
return x * y + z;
|
||||
}
|
||||
|
||||
libm_alias_float128 (__fma, fma)
|
||||
Loading…
Reference in New Issue
Block a user