diff options
| -rw-r--r-- | ChangeLog | 14 | ||||
| -rw-r--r-- | math/s_fma.c | 4 | ||||
| -rw-r--r-- | math/s_fmaf.c | 4 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/Versions | 5 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/s_fma.c | 43 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/s_fmaf.c | 42 |
6 files changed, 110 insertions, 2 deletions
@@ -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> |