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author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2017-10-13 14:53:13 -0300 |
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committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2017-11-30 14:10:16 -0200 |
commit | b70cbbfcc844fd862a3f053991ce392f224b89cd (patch) | |
tree | 04b4acb5b878f4ad2b8fdadf532458ff905d4914 /sysdeps/sparc/sparc64 | |
parent | 023cade3b390a321065a8bdfc0d67e7c7a929780 (diff) | |
download | glibc-b70cbbfcc844fd862a3f053991ce392f224b89cd.zip glibc-b70cbbfcc844fd862a3f053991ce392f224b89cd.tar.gz glibc-b70cbbfcc844fd862a3f053991ce392f224b89cd.tar.bz2 |
sparc: refactor sparc64 __mpn_sub_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
sub_n-generic.S).
Checked on sparc64-linux-gnu and sparcv9-linux-gnu.
* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
Add sub_n-generic.
* sysdeps/sparc/sparc64/multiarch/sub_n-generic.S: New file.
* sysdeps/sparc/sparc64/multiarch/sub_n.c: Likewise.
* sysdeps/sparc/sparc64/multiarch/sub_n.S: Remove file.
Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/sparc/sparc64')
-rw-r--r-- | sysdeps/sparc/sparc64/multiarch/Makefile | 2 | ||||
-rw-r--r-- | sysdeps/sparc/sparc64/multiarch/sub_n-generic.S | 2 | ||||
-rw-r--r-- | sysdeps/sparc/sparc64/multiarch/sub_n.S | 56 | ||||
-rw-r--r-- | sysdeps/sparc/sparc64/multiarch/sub_n.c | 28 |
4 files changed, 31 insertions, 57 deletions
diff --git a/sysdeps/sparc/sparc64/multiarch/Makefile b/sysdeps/sparc/sparc64/multiarch/Makefile index 2338213..10fe54f 100644 --- a/sysdeps/sparc/sparc64/multiarch/Makefile +++ b/sysdeps/sparc/sparc64/multiarch/Makefile @@ -14,7 +14,7 @@ endif ifeq ($(subdir),stdlib) sysdep_routines += mul_1-vis3 mul_1-generic addmul_1-vis3 submul_1-vis3 \ - add_n-vis3 sub_n-vis3 + add_n-vis3 sub_n-vis3 sub_n-generic endif ifeq ($(subdir),math) diff --git a/sysdeps/sparc/sparc64/multiarch/sub_n-generic.S b/sysdeps/sparc/sparc64/multiarch/sub_n-generic.S new file mode 100644 index 0000000..7cece93 --- /dev/null +++ b/sysdeps/sparc/sparc64/multiarch/sub_n-generic.S @@ -0,0 +1,2 @@ +#define __mpn_sub_n __mpn_sub_n_generic +#include <sysdeps/sparc/sparc64/sub_n.S> diff --git a/sysdeps/sparc/sparc64/multiarch/sub_n.S b/sysdeps/sparc/sparc64/multiarch/sub_n.S deleted file mode 100644 index d20a286..0000000 --- a/sysdeps/sparc/sparc64/multiarch/sub_n.S +++ /dev/null @@ -1,56 +0,0 @@ -/* Multiple versions of sub_n - - 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_sub_n) - .type __mpn_sub_n, @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_sub_n_vis3), %o1 - xor %o1, %gdop_lox10(__mpn_sub_n_vis3), %o1 -# else - set __mpn_sub_n_vis3, %o1 -# endif - ba 10f - nop -1: -# ifdef SHARED - sethi %gdop_hix22(__mpn_sub_n_generic), %o1 - xor %o1, %gdop_lox10(__mpn_sub_n_generic), %o1 -# else - set __mpn_sub_n_generic, %o1 -# endif -10: -# ifdef SHARED - add %o3, %o1, %o1 -# endif - retl - mov %o1, %o0 -END(__mpn_sub_n) - -#define __mpn_sub_n __mpn_sub_n_generic -#include "../sub_n.S" diff --git a/sysdeps/sparc/sparc64/multiarch/sub_n.c b/sysdeps/sparc/sparc64/multiarch/sub_n.c new file mode 100644 index 0000000..758879a --- /dev/null +++ b/sysdeps/sparc/sparc64/multiarch/sub_n.c @@ -0,0 +1,28 @@ +/* __mpn_sub_n 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_sub_n) __mpn_sub_n_vis3 attribute_hidden; +extern __typeof (mpn_sub_n) __mpn_sub_n_generic attribute_hidden; + +sparc_libm_ifunc (__mpn_sub_n, + hwcap & HWCAP_SPARC_VIS3 + ? __mpn_sub_n_vis3 + : __mpn_sub_n_generic) |