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GNU C Library master sources branch, ibm/2.11/master, updated. glibc-2.11.1-79-gb9990d9
- From: luisgpm at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 12 Aug 2010 17:01:38 -0000
- Subject: GNU C Library master sources branch, ibm/2.11/master, updated. glibc-2.11.1-79-gb9990d9
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http://sources.redhat.com/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=b9990d9617e77486377b1a9722faf8493de07590
commit b9990d9617e77486377b1a9722faf8493de07590
Author: Luis Machado <luis@gargoyle.(none)>
Date: Thu Aug 12 13:58:11 2010 -0300
POWER6/7 optimizations for copysign.
diff --git a/ChangeLog b/ChangeLog
index 2f99e8d..9820926 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-08-12 Luis Machado <luisgpm@br.ibm.com>
+
+ * sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S: New file.
+ * sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S: New file.
+ * sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S: New file.
+ * sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S: New file.
+
2010-06-10 Luis Machado <luisgpm@br.ibm.com>
* sysdeps/powerpc/powerpc32/power7/memcmp.S: New file
diff --git a/sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S b/sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S
new file mode 100644
index 0000000..0e8b26d
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S
@@ -0,0 +1,56 @@
+/* copysign(). PowerPC32/POWER6 version.
+ Copyright (C) 2010 Free Software Foundation, Inc.
+ Contributed by Luis Machado <luisgpm@br.ibm.com>.
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+/* double [f1] copysign (double [f1] x, double [f2] y);
+ copysign(x,y) returns a value with the magnitude of x and
+ with the sign bit of y. */
+
+ .section ".text"
+ .type __copysign, @function
+ .machine power6
+EALIGN (__copysign, 4, 0)
+ CALL_MCOUNT
+ fcpsgn fp1,fp2,fp1
+ blr
+END (__copysign)
+
+hidden_def (__copysign)
+weak_alias (__copysign, copysign)
+
+/* It turns out that the 'double' version will also always work for
+ single-precision. */
+strong_alias (__copysign, __copysignf)
+hidden_def (__copysignf)
+weak_alias (__copysignf, copysignf)
+
+#ifdef NO_LONG_DOUBLE
+strong_alias (__copysign, __copysignl)
+weak_alias (__copysign, copysignl)
+#endif
+
+#ifndef IS_IN_libm
+# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
+compat_symbol (libc, __copysign, __copysignl, GLIBC_2_0);
+compat_symbol (libc, copysign, copysignl, GLIBC_2_0);
+# endif
+#endif
diff --git a/sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S b/sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S
new file mode 100644
index 0000000..d4aa702
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S
@@ -0,0 +1 @@
+/* This function uses the same code as s_copysign.S. */
diff --git a/sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S b/sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S
new file mode 100644
index 0000000..0ff84d2
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S
@@ -0,0 +1,56 @@
+/* copysign(). PowerPC64/POWER6 version.
+ Copyright (C) 2010 Free Software Foundation, Inc.
+ Contributed by Luis Machado <luisgpm@br.ibm.com>.
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+/* double [f1] copysign (double [f1] x, double [f2] y);
+ copysign(x,y) returns a value with the magnitude of x and
+ with the sign bit of y. */
+
+ .section ".text"
+ .type __copysign, @function
+ .machine power6
+EALIGN (__copysign, 4, 0)
+ CALL_MCOUNT 0
+ fcpsgn fp1,fp2,fp1
+ blr
+END (__copysign)
+
+hidden_def (__copysign)
+weak_alias (__copysign, copysign)
+
+/* It turns out that the 'double' version will also always work for
+ single-precision. */
+strong_alias (__copysign, __copysignf)
+hidden_def (__copysignf)
+weak_alias (__copysignf, copysignf)
+
+#ifdef NO_LONG_DOUBLE
+strong_alias (__copysign, __copysignl)
+weak_alias (__copysign, copysignl)
+#endif
+
+#ifndef IS_IN_libm
+# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
+compat_symbol (libc, __copysign, __copysignl, GLIBC_2_0);
+compat_symbol (libc, copysign, copysignl, GLIBC_2_0);
+# endif
+#endif
diff --git a/sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S b/sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S
new file mode 100644
index 0000000..d4aa702
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S
@@ -0,0 +1 @@
+/* This function uses the same code as s_copysign.S. */
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 7 +++
sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S | 56 ++++++++++++++++++++
sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S | 1 +
sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S | 56 ++++++++++++++++++++
sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S | 1 +
5 files changed, 121 insertions(+), 0 deletions(-)
create mode 100644 sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S
create mode 100644 sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S
create mode 100644 sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S
create mode 100644 sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S
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