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sparc32/sparcv9: add a VIS3 version of fdim

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sparc32 passes floating point values in the integer registers. VIS3
instructions gives access to the movwtos instruction to directly
transfer a value from an integer register to a floating point register.
Therefore it makes sense to provide a VIS3 version consisting in the
generic version compiled with -mvis3.

Changelog:
	* math/s_fdim.c: Avoid alias renamed.
	* math/s_fdimf.c: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
	[$(subdir) = math && $(have-as-vis3) = yes] (libm-sysdep_routines):
	Add s_fdimf-vis3, s_fdim-vis3.
	(CFLAGS-s_fdimf-vis3.c): New. Set to -Wa,-Av9d -mvis3.
	(CFLAGS-s_fdim-vis3.c): Likewise.
	sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim-vis3.c: New file.
	sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim.c: Likewise.
This commit is contained in:
Aurelien Jarno 2016-08-05 22:35:01 +02:00
parent 8a9f4eb958
commit bf79a337ec
8 changed files with 131 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
ChangeLog
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@ -1,3 +1,15 @@
2016-08-05 Aurelien Jarno <aurelien@aurel32.net>
* math/s_fdim.c: Avoid alias renamed.
* math/s_fdimf.c: Likewise.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
[$(subdir) = math && $(have-as-vis3) = yes] (libm-sysdep_routines):
Add s_fdimf-vis3, s_fdim-vis3.
(CFLAGS-s_fdimf-vis3.c): New. Set to -Wa,-Av9d -mvis3.
(CFLAGS-s_fdim-vis3.c): Likewise.
sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim-vis3.c: New file.
sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim.c: Likewise.
2016-08-05 Aurelien Jarno <aurelien@aurel32.net> 2016-08-05 Aurelien Jarno <aurelien@aurel32.net>
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile

4
math/s_fdim.c
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@ -33,8 +33,10 @@ __fdim (double x, double y)
return r; return r;
} }
#ifndef __fdim
weak_alias (__fdim, fdim) weak_alias (__fdim, fdim)
#ifdef NO_LONG_DOUBLE # ifdef NO_LONG_DOUBLE
strong_alias (__fdim, __fdiml) strong_alias (__fdim, __fdiml)
weak_alias (__fdim, fdiml) weak_alias (__fdim, fdiml)
# endif
#endif #endif

2
math/s_fdimf.c
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@ -33,4 +33,6 @@ __fdimf (float x, float y)
return r; return r;
} }
#ifndef __fdimf
weak_alias (__fdimf, fdimf) weak_alias (__fdimf, fdimf)
#endif

5
sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
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@ -5,7 +5,10 @@ libm-sysdep_routines += m_copysignf-vis3 m_copysign-vis3 s_fabs-vis3 \
s_rintf-vis3 s_rint-vis3 w_sqrt-vis3 w_sqrtf-vis3 \ s_rintf-vis3 s_rint-vis3 w_sqrt-vis3 w_sqrtf-vis3 \
s_fminf-vis3 s_fmin-vis3 s_fmaxf-vis3 s_fmax-vis3 \ s_fminf-vis3 s_fmin-vis3 s_fmaxf-vis3 s_fmax-vis3 \
s_fmaf-vis3 s_fma-vis3 s_nearbyint-vis3 \ s_fmaf-vis3 s_fma-vis3 s_nearbyint-vis3 \
s_nearbyintf-vis3 s_nearbyintf-vis3 s_fdimf-vis3 s_fdim-vis3
sysdep_routines += s_copysignf-vis3 s_copysign-vis3 sysdep_routines += s_copysignf-vis3 s_copysign-vis3
CFLAGS-s_fdimf-vis3.c += -Wa,-Av9d -mvis3
CFLAGS-s_fdim-vis3.c += -Wa,-Av9d -mvis3
endif endif
endif endif

23
sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim-vis3.c Normal file
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@ -0,0 +1,23 @@
/* Compute positive difference, sparc 32-bit+v9+vis3.
Copyright (C) 2016 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 <math.h>
#define __fdim __fdim_vis3
#include <math/s_fdim.c>

32
sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim.c Normal file
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@ -0,0 +1,32 @@
/* Compute positive difference, sparc 32-bit.
Copyright (C) 2016 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/>. */
#ifdef HAVE_AS_VIS3_SUPPORT
# include <sparc-ifunc.h>
# include <math.h>
extern double __fdim_vis3 (double, double);
extern double __fdim_generic (double, double);
sparc_libm_ifunc(__fdim, hwcap & HWCAP_SPARC_VIS3 ? __fdim_vis3 : __fdim_generic);
weak_alias (__fdim, fdim)
# define __fdim __fdim_generic
#endif
#include <math/s_fdim.c>

23
sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdimf-vis3.c Normal file
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@ -0,0 +1,23 @@
/* Float compute positive difference, sparc 32-bit+v9+vis3.
Copyright (C) 2016 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 <math.h>
#define __fdimf __fdimf_vis3
#include <math/s_fdimf.c>

32
sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdimf.c Normal file
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@ -0,0 +1,32 @@
/* Float compute positive difference, sparc 32-bit.
Copyright (C) 2016 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/>. */
#ifdef HAVE_AS_VIS3_SUPPORT
# include <sparc-ifunc.h>
# include <math.h>
extern float __fdimf_vis3 (float, float);
extern float __fdimf_generic (float, float);
sparc_libm_ifunc(__fdimf, hwcap & HWCAP_SPARC_VIS3 ? __fdimf_vis3 : __fdimf_generic);
weak_alias (__fdimf, fdimf)
# define __fdimf __fdimf_generic
#endif
#include <math/s_fdimf.c>