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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-02-27 09:43:51 -0600
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-02-27 12:58:32 -0600
commit487972aea52004f604c2878c8c9d3e77670f2c32 (patch)
tree1f8a570e52975d04c513523e7d7b454a29015993 /sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-power8.S
parent7d92b78723848ae616709eb8f0191ea067025b18 (diff)
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PowerPC: Optimized isnan/isnanf for POWER8
This patch add a optimized isnan/isnanf implementation for POWER8
using the new Move From VSR Doubleword instruction to gains some
cycles from FP to GRP register move.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-power8.S')
-rw-r--r--sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-power8.S33
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-power8.S b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-power8.S
new file mode 100644
index 0000000000..c176d5aa53
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-power8.S
@@ -0,0 +1,33 @@
+/* isnan().  PowerPC64/POWER7 version.
+   Copyright (C) 2014 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 <sysdep.h>
+#include <math_ldbl_opt.h>
+
+#undef hidden_def
+#define hidden_def(name)
+#undef weak_alias
+#define weak_alias(name, alias)
+#undef strong_alias
+#define strong_alias(name, alias)
+#undef compat_symbol
+#define compat_symbol(lib, name, symbol, ver)
+
+#define __isnan __isnan_power8
+
+#include <sysdeps/powerpc/powerpc64/power8/fpu/s_isnan.S>