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author | H.J. Lu <hjl.tools@gmail.com> | 2017-06-06 05:31:48 -0700 |
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committer | H.J. Lu <hjl.tools@gmail.com> | 2017-06-06 05:31:48 -0700 |
commit | b5b8fce19221891afba4907e9dd7e05b9e797f53 (patch) | |
tree | da425b0c569152e9cfbfb6553e78e0c0b44cc2a2 /sysdeps/x86_64/multiarch/ifunc-sse4_1.h | |
parent | 4bf7abaeb3b50483aa91cc7ad2e16f979bfb6176 (diff) | |
download | glibc-hjl/avx2/fix.tar.gz glibc-hjl/avx2/fix.tar.xz glibc-hjl/avx2/fix.zip |
x86-64: Move wcsnlen.S to multiarch/wcsnlen-sse4_1.S hjl/avx2/fix
Since wcsnlen.S uses pminud which is the part of SSE4.1, move wcsnlen.S to multiarch/wcsnlen-sse4_1.S. * sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add wcsnlen-sse4_1 and wcsnlen-c. * sysdeps/x86_64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Test __wcsnlen_sse4_1 and __wcsnlen_sse2. * sysdeps/x86_64/multiarch/ifunc-sse4_1.h: New file. * sysdeps/x86_64/multiarch/wcsnlen-c.c: Likewise. * sysdeps/x86_64/multiarch/wcsnlen-sse4_1.S: Likewise. * sysdeps/x86_64/multiarch/wcsnlen.c: Likewise. * sysdeps/x86_64/wcsnlen.S: Removed.
Diffstat (limited to 'sysdeps/x86_64/multiarch/ifunc-sse4_1.h')
-rw-r--r-- | sysdeps/x86_64/multiarch/ifunc-sse4_1.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/ifunc-sse4_1.h b/sysdeps/x86_64/multiarch/ifunc-sse4_1.h new file mode 100644 index 0000000000..2b89231d63 --- /dev/null +++ b/sysdeps/x86_64/multiarch/ifunc-sse4_1.h @@ -0,0 +1,34 @@ +/* Common definition for ifunc selections optimized with SSE2 and SSE4.1. + All versions must be listed in ifunc-impl-list.c. + Copyright (C) 2017 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 <init-arch.h> + +extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (sse4_1) attribute_hidden; + +static inline void * +IFUNC_SELECTOR (void) +{ + const struct cpu_features* cpu_features = __get_cpu_features (); + + if (CPU_FEATURES_CPU_P (cpu_features, SSE4_1)) + return OPTIMIZE (sse4_1); + + return OPTIMIZE (sse2); +} |