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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-10-13 15:01:58 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-11-30 14:10:28 -0200
commit9e2279a0e91af29b9b6e367b9e1d13c8d491b7e6 (patch)
tree415e3c2088abf71547ae229a72964d7b681f3f4b /sysdeps/sparc
parent75f37c71dbd9a5c5c1594800c4824d70d017185e (diff)
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>
Diffstat (limited to 'sysdeps/sparc')
-rw-r--r--sysdeps/sparc/sparc64/multiarch/Makefile4
-rw-r--r--sysdeps/sparc/sparc64/multiarch/add_n-generic.S2
-rw-r--r--sysdeps/sparc/sparc64/multiarch/add_n.S56
-rw-r--r--sysdeps/sparc/sparc64/multiarch/add_n.c28
4 files changed, 32 insertions, 58 deletions
diff --git a/sysdeps/sparc/sparc64/multiarch/Makefile b/sysdeps/sparc/sparc64/multiarch/Makefile
index d62a5094ca..ba8ede157d 100644
--- a/sysdeps/sparc/sparc64/multiarch/Makefile
+++ b/sysdeps/sparc/sparc64/multiarch/Makefile
@@ -14,8 +14,8 @@ endif
ifeq ($(subdir),stdlib)
sysdep_routines += mul_1-vis3 mul_1-generic addmul_1-vis3 addmul_1-generic \
- submul_1-vis3 submul_1-generic add_n-vis3 sub_n-vis3 \
- sub_n-generic
+ submul_1-vis3 submul_1-generic add_n-vis3 add_n-generic \
+ sub_n-vis3 sub_n-generic
endif
ifeq ($(subdir),math)
diff --git a/sysdeps/sparc/sparc64/multiarch/add_n-generic.S b/sysdeps/sparc/sparc64/multiarch/add_n-generic.S
new file mode 100644
index 0000000000..a16e7091b4
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/add_n-generic.S
@@ -0,0 +1,2 @@
+#define __mpn_add_n __mpn_add_n_generic
+#include <sysdeps/sparc/sparc64/add_n.S>
diff --git a/sysdeps/sparc/sparc64/multiarch/add_n.S b/sysdeps/sparc/sparc64/multiarch/add_n.S
deleted file mode 100644
index 9ffaf7865b..0000000000
--- a/sysdeps/sparc/sparc64/multiarch/add_n.S
+++ /dev/null
@@ -1,56 +0,0 @@
-/* Multiple versions of add_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_add_n)
- .type __mpn_add_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_add_n_vis3), %o1
- xor %o1, %gdop_lox10(__mpn_add_n_vis3), %o1
-# else
- set __mpn_add_n_vis3, %o1
-# endif
- ba 10f
- nop
-1:
-# ifdef SHARED
- sethi %gdop_hix22(__mpn_add_n_generic), %o1
- xor %o1, %gdop_lox10(__mpn_add_n_generic), %o1
-# else
- set __mpn_add_n_generic, %o1
-# endif
-10:
-# ifdef SHARED
- add %o3, %o1, %o1
-# endif
- retl
- mov %o1, %o0
-END(__mpn_add_n)
-
-#define __mpn_add_n __mpn_add_n_generic
-#include "../add_n.S"
diff --git a/sysdeps/sparc/sparc64/multiarch/add_n.c b/sysdeps/sparc/sparc64/multiarch/add_n.c
new file mode 100644
index 0000000000..6b509d1f9b
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/add_n.c
@@ -0,0 +1,28 @@
+/* __mpn_add_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_add_n) __mpn_add_n_vis3 attribute_hidden;
+extern __typeof (mpn_add_n) __mpn_add_n_generic attribute_hidden;
+
+sparc_libm_ifunc (__mpn_add_n,
+ hwcap & HWCAP_SPARC_VIS3
+ ? __mpn_add_n_vis3
+ : __mpn_add_n_generic)