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sparc: refactor sparc64 __mpn_add_n selector to C
This patch refactors the sparc64 ifunc selector to a C implementation. Also, the generic symbol is moved to its own implementation file add_n-generic.S). Checked on sparc64-linux-gnu and sparcv9-linux-gnu. * sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines): Add add_n-generic. * sysdeps/sparc/sparc64/multiarch/add_n-generic.S: New file. * sysdeps/sparc/sparc64/multiarch/add_n.c: Likewise. * sysdeps/sparc/sparc64/multiarch/add_n.S: Remove file. Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Adhemerval Zanella
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75f37c71db
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9e2279a0e9
@ -1,5 +1,11 @@
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2017-11-30 Adhemerval Zanella <adhemerval.zanella@linaro.org>
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2017-11-30 Adhemerval Zanella <adhemerval.zanella@linaro.org>
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* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
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Add add_n-generic.
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* sysdeps/sparc/sparc64/multiarch/add_n-generic.S: New file.
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* sysdeps/sparc/sparc64/multiarch/add_n.c: Likewise.
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* sysdeps/sparc/sparc64/multiarch/add_n.S: Remove file.
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* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
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* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
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Add submul_1-generic.
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Add submul_1-generic.
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* sysdeps/sparc/sparc64/multiarch/submul_1-generic.S: New file.
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* sysdeps/sparc/sparc64/multiarch/submul_1-generic.S: New file.
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@ -14,8 +14,8 @@ endif
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ifeq ($(subdir),stdlib)
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ifeq ($(subdir),stdlib)
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sysdep_routines += mul_1-vis3 mul_1-generic addmul_1-vis3 addmul_1-generic \
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sysdep_routines += mul_1-vis3 mul_1-generic addmul_1-vis3 addmul_1-generic \
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submul_1-vis3 submul_1-generic add_n-vis3 sub_n-vis3 \
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submul_1-vis3 submul_1-generic add_n-vis3 add_n-generic \
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sub_n-generic
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sub_n-vis3 sub_n-generic
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endif
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endif
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ifeq ($(subdir),math)
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ifeq ($(subdir),math)
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2
sysdeps/sparc/sparc64/multiarch/add_n-generic.S
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2
sysdeps/sparc/sparc64/multiarch/add_n-generic.S
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@ -0,0 +1,2 @@
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#define __mpn_add_n __mpn_add_n_generic
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#include <sysdeps/sparc/sparc64/add_n.S>
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@ -1,56 +0,0 @@
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/* Multiple versions of add_n
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Copyright (C) 2013-2017 Free Software Foundation, Inc.
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Contributed by David S. Miller (davem@davemloft.net)
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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ENTRY(__mpn_add_n)
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.type __mpn_add_n, @gnu_indirect_function
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# ifdef SHARED
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SETUP_PIC_REG_LEAF(o3, o5)
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# endif
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set HWCAP_SPARC_VIS3, %o1
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andcc %o0, %o1, %g0
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be 1f
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nop
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# ifdef SHARED
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sethi %gdop_hix22(__mpn_add_n_vis3), %o1
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xor %o1, %gdop_lox10(__mpn_add_n_vis3), %o1
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# else
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set __mpn_add_n_vis3, %o1
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# endif
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ba 10f
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nop
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1:
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# ifdef SHARED
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sethi %gdop_hix22(__mpn_add_n_generic), %o1
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xor %o1, %gdop_lox10(__mpn_add_n_generic), %o1
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# else
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set __mpn_add_n_generic, %o1
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# endif
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10:
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# ifdef SHARED
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add %o3, %o1, %o1
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# endif
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retl
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mov %o1, %o0
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END(__mpn_add_n)
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#define __mpn_add_n __mpn_add_n_generic
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#include "../add_n.S"
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28
sysdeps/sparc/sparc64/multiarch/add_n.c
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28
sysdeps/sparc/sparc64/multiarch/add_n.c
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@ -0,0 +1,28 @@
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/* __mpn_add_n ifunc resolver, Linux/sparc64 version.
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Copyright (C) 2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <gmp.h>
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#include <sparc-ifunc.h>
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extern __typeof (mpn_add_n) __mpn_add_n_vis3 attribute_hidden;
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extern __typeof (mpn_add_n) __mpn_add_n_generic attribute_hidden;
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sparc_libm_ifunc (__mpn_add_n,
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hwcap & HWCAP_SPARC_VIS3
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? __mpn_add_n_vis3
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: __mpn_add_n_generic)
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