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-rw-r--r--ChangeLog14
-rw-r--r--math/s_fma.c4
-rw-r--r--math/s_fmaf.c4
-rw-r--r--sysdeps/x86_64/multiarch/Versions5
-rw-r--r--sysdeps/x86_64/multiarch/s_fma.c43
-rw-r--r--sysdeps/x86_64/multiarch/s_fmaf.c42
6 files changed, 110 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index 0273a59..0d0120c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,19 @@
2009-07-29 Ulrich Drepper <drepper@redhat.com>
+ * math/s_fma.c: Don't define alias if __fma is a macro.
+ * math/s_fmaf.c: Likewise.
+ * sysdeps/x86_64/multiarch/s_fma.c: New file.
+ * sysdeps/x86_64/multiarch/s_fmaf.c: New file.
+ Partially based on a patch by H.J. Lu <hongjiu.lu@intel.com>.
+
+ * sysdeps/x86_64/multiarch/init-arch.h (__get_cpu_features): Declare.
+ (HAS_POPCOUNT, HAS_SSE4_2): Add variants which work outside libc.
+ New macro HAS_FMA.
+ * sysdeps/x86_64/multiarch/init-arch.c (__get_cpu_features): New
+ function.
+ * include/libc-symbols.h (libm_ifunc): Define.
+ * sysdeps/x86_64/multiarch/Versions: New file.
+
* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_profile): Improve CFI.
2009-07-28 H.J. Lu <hongjiu.lu@intel.com>
diff --git a/math/s_fma.c b/math/s_fma.c
index e5ff5a7..476d1fe 100644
--- a/math/s_fma.c
+++ b/math/s_fma.c
@@ -1,5 +1,5 @@
/* Compute x * y + z as ternary operation.
- Copyright (C) 1997, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1997, 2001, 2009 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -25,7 +25,9 @@ __fma (double x, double y, double z)
{
return (x * y) + z;
}
+#ifndef __fma
weak_alias (__fma, fma)
+#endif
#ifdef NO_LONG_DOUBLE
strong_alias (__fma, __fmal)
diff --git a/math/s_fmaf.c b/math/s_fmaf.c
index caa7f3a..357296d 100644
--- a/math/s_fmaf.c
+++ b/math/s_fmaf.c
@@ -1,5 +1,5 @@
/* Compute x * y + z as ternary operation.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997, 2009 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -25,4 +25,6 @@ __fmaf (float x, float y, float z)
{
return (x * y) + z;
}
+#ifndef __fmaf
weak_alias (__fmaf, fmaf)
+#endif
diff --git a/sysdeps/x86_64/multiarch/Versions b/sysdeps/x86_64/multiarch/Versions
new file mode 100644
index 0000000..59b185a
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/Versions
@@ -0,0 +1,5 @@
+libc {
+ GLIBC_PRIVATE {
+ __get_cpu_features;
+ }
+}
diff --git a/sysdeps/x86_64/multiarch/s_fma.c b/sysdeps/x86_64/multiarch/s_fma.c
new file mode 100644
index 0000000..40601e9
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/s_fma.c
@@ -0,0 +1,43 @@
+/* FMA version of fma.
+ Copyright (C) 2009 Free Software Foundation, Inc.
+ Contributed by Intel Corporation.
+ 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 <config.h>
+#include <math.h>
+#include <init-arch.h>
+
+#ifdef HAVE_AVX_SUPPORT
+
+extern double __fma_sse2 (double x, double y, double z);
+
+
+double
+__fma_fma (double x, double y, double z)
+{
+ asm ("vfmadd213sd %3, %2, %0" : "=x" (x) : "0" (x), "x" (y), "xm" (z));
+ return x;
+}
+
+libm_ifunc (__fma, HAS_FMA ? __fma_fma : __fma_sse2);
+weak_alias (__fma, fma)
+
+# define __fma __fma_sse2
+#endif
+
+#include <math/s_fma.c>
diff --git a/sysdeps/x86_64/multiarch/s_fmaf.c b/sysdeps/x86_64/multiarch/s_fmaf.c
new file mode 100644
index 0000000..f3d37f8
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/s_fmaf.c
@@ -0,0 +1,42 @@
+/* FMA version of fmaf.
+ Copyright (C) 2009 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <config.h>
+#include <math.h>
+#include <init-arch.h>
+
+#ifdef HAVE_AVX_SUPPORT
+
+extern float __fmaf_sse2 (float x, float y, float z);
+
+
+float
+__fmaf_fma (float x, float y, float z)
+{
+ asm ("vfmadd213ss %3, %2, %0" : "=x" (x) : "0" (x), "x" (y), "xm" (z));
+ return x;
+}
+
+libm_ifunc (__fmaf, HAS_FMA ? __fmaf_fma : __fmaf_sse2);
+weak_alias (__fmaf, fmaf)
+
+# define __fmaf __fmaf_sse2
+#endif
+
+#include <math/s_fmaf.c>