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sparc: refactor sparc64 __mpn_submul_1 selector to C

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This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
submul_1-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
	Add submul_1-generic.
	* sysdeps/sparc/sparc64/multiarch/submul_1-generic.S: New file.
	* sysdeps/sparc/sparc64/multiarch/submul_1.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/submul_1.S: Remove file.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
Adhemerval Zanella 2017-10-13 14:59:09 -03:00
parent dda1d2e88b
commit 75f37c71db
5 changed files with 38 additions and 57 deletions
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6
ChangeLog
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@ -1,5 +1,11 @@
2017-11-30 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
Add submul_1-generic.
* sysdeps/sparc/sparc64/multiarch/submul_1-generic.S: New file.
* sysdeps/sparc/sparc64/multiarch/submul_1.c: Likewise.
* sysdeps/sparc/sparc64/multiarch/submul_1.S: Remove file.
* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
Add addmul_1-generic.
* sysdeps/sparc/sparc64/multiarch/addmul_1-generic.S: New file.

3
sysdeps/sparc/sparc64/multiarch/Makefile
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@ -14,7 +14,8 @@ endif
ifeq ($(subdir),stdlib)
sysdep_routines += mul_1-vis3 mul_1-generic addmul_1-vis3 addmul_1-generic \
submul_1-vis3 add_n-vis3 sub_n-vis3 sub_n-generic
submul_1-vis3 submul_1-generic add_n-vis3 sub_n-vis3 \
sub_n-generic
endif
ifeq ($(subdir),math)

2
sysdeps/sparc/sparc64/multiarch/submul_1-generic.S Normal file
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@ -0,0 +1,2 @@
#define __mpn_submul_1 __mpn_submul_1_generic
#include <sysdeps/sparc/sparc64/submul_1.S>

56
sysdeps/sparc/sparc64/multiarch/submul_1.S
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@ -1,56 +0,0 @@
/* Multiple versions of submul_1
Copyright (C) 2013-2017 Free Software Foundation, Inc.
Contributed by David S. Miller (davem@davemloft.net)
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 <sysdep.h>
ENTRY(__mpn_submul_1)
.type __mpn_submul_1, @gnu_indirect_function
# ifdef SHARED
SETUP_PIC_REG_LEAF(o3, o5)
# endif
set HWCAP_SPARC_VIS3, %o1
andcc %o0, %o1, %g0
be 1f
nop
# ifdef SHARED
sethi %gdop_hix22(__mpn_submul_1_vis3), %o1
xor %o1, %gdop_lox10(__mpn_submul_1_vis3), %o1
# else
set __mpn_submul_1_vis3, %o1
# endif
ba 10f
nop
1:
# ifdef SHARED
sethi %gdop_hix22(__mpn_submul_1_generic), %o1
xor %o1, %gdop_lox10(__mpn_submul_1_generic), %o1
# else
set __mpn_submul_1_generic, %o1
# endif
10:
# ifdef SHARED
add %o3, %o1, %o1
# endif
retl
mov %o1, %o0
END(__mpn_submul_1)
#define __mpn_submul_1 __mpn_submul_1_generic
#include "../submul_1.S"

28
sysdeps/sparc/sparc64/multiarch/submul_1.c Normal file
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@ -0,0 +1,28 @@
/* __mpn_submul_1 ifunc resolver, Linux/sparc64 version.
Copyright (C) 2017 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 <gmp.h>
#include <sparc-ifunc.h>
extern __typeof (mpn_submul_1) __mpn_submul_1_vis3 attribute_hidden;
extern __typeof (mpn_submul_1) __mpn_submul_1_generic attribute_hidden;
sparc_libm_ifunc (__mpn_submul_1,
hwcap & HWCAP_SPARC_VIS3
? __mpn_submul_1_vis3
: __mpn_submul_1_generic)