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s390x: Use fma{f} builtin

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Checked on s390x-linux-gnu.
This commit is contained in:
Adhemerval Zanella 2020-06-04 17:22:20 +00:00
parent 271afad8f4
commit a2e833667d
3 changed files with 4 additions and 64 deletions
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4
sysdeps/s390/fpu/math-use-builtins-fma.h Normal file
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@ -0,0 +1,4 @@
#define USE_FMA_BUILTIN 1
#define USE_FMAF_BUILTIN 1
#define USE_FMAL_BUILTIN 0
#define USE_FMAF128_BUILTIN 0

32
sysdeps/s390/fpu/s_fma.c
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@ -1,32 +0,0 @@
/* Compute x * y + z as ternary operation. S/390 version.
Copyright (C) 2010-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2010.
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
<https://www.gnu.org/licenses/>. */
#include <math.h>
#include <libm-alias-double.h>
double
__fma (double x, double y, double z)
{
double r;
__asm__ ("madbr %0,%1,%2" : "=f" (r) : "%f" (x), "fR" (y), "0" (z));
return r;
}
#ifndef __fma
libm_alias_double (__fma, fma)
#endif

32
sysdeps/s390/fpu/s_fmaf.c
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@ -1,32 +0,0 @@
/* Compute x * y + z as ternary operation. S/390 version.
Copyright (C) 2010-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2010.
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
<https://www.gnu.org/licenses/>. */
#include <math.h>
#include <libm-alias-float.h>
float
__fmaf (float x, float y, float z)
{
float r;
__asm__ ("maebr %0,%1,%2" : "=f" (r) : "%f" (x), "fR" (y), "0" (z));
return r;
}
#ifndef __fmaf
libm_alias_float (__fma, fma)
#endif