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author | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2014-02-17 10:44:08 -0600 |
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committer | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2014-02-27 12:58:33 -0600 |
commit | fe13a20c37578f08ce393ccaeb45caeb48815ca5 (patch) | |
tree | 62a09dac1baf2a1caf2e8b346733645cc596340f /sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power8.S | |
parent | 1ad8950a3ea4056ed343d681b5146f4b4aa27e10 (diff) | |
download | glibc-fe13a20c37578f08ce393ccaeb45caeb48815ca5.tar.gz glibc-fe13a20c37578f08ce393ccaeb45caeb48815ca5.tar.xz glibc-fe13a20c37578f08ce393ccaeb45caeb48815ca5.zip |
PowerPC: llround/llroundf POWER8 optimization
This patch add a optimized llround/llroundf 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_llround-power8.S')
-rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power8.S | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power8.S b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power8.S new file mode 100644 index 0000000000..41c61a1bc8 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround-power8.S @@ -0,0 +1,31 @@ +/* llround(). PowerPC64 default 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 weak_alias +#define weak_alias(name, alias) +#undef strong_alias +#define strong_alias(name, alias) +#undef compat_symbol +#define compat_symbol(lib, name, alias, ver) + +#define __llround __llround_power8 + +#include <sysdeps/powerpc/powerpc64/power8/fpu/s_llround.S> |