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std::find() and memchr() Optimizations

gms.tf · published 7 September 2016

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http://en.cppreference.com/w/cpp/algorithm/find
en.cppreference.com
http://en.cppreference.com/w/c/string/byte/memchr
en.cppreference.com
https://en.wikipedia.org/wiki/SIMD
en.wikipedia.org
https://en.wikipedia.org/wiki/Inlining
en.wikipedia.org
https://en.wikipedia.org/wiki/POSIX
en.wikipedia.org
http://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=blob;f=src/ioblksize.h;h=266c209f48fc07cb4527139a2548b6398b75f740;hb=HEAD
git.savannah.gnu.org
https://github.com/gsauthof/find-memchr
github.com
https://en.wikipedia.org/wiki/Median
en.wikipedia.org
https://en.wikipedia.org/wiki/Advanced_Vector_Extensions
en.wikipedia.org
https://en.wikipedia.org/wiki/AVX-512
en.wikipedia.org
http://gcc.godbolt.org/
gcc.godbolt.org
https://en.wikipedia.org/wiki/Loop_unrolling
en.wikipedia.org
https://gcc.gnu.org/onlinedocs/libstdc++/
gcc.gnu.org
https://en.wikipedia.org/wiki/Superscalar_processor
en.wikipedia.org
http://libcxx.llvm.org/
libcxx.llvm.org
http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/algorithm?revision=279948&view=markup
llvm.org
https://en.wikipedia.org/wiki/Automatic_vectorization
en.wikipedia.org
https://gcc.gnu.org/onlinedocs/gcc/Vector-Extensions.html
gcc.gnu.org
https://gcc.gnu.org/onlinedocs/gcc/Using-Assembly-Language-with-C.html
gcc.gnu.org
https://gcc.gnu.org/onlinedocs/gcc/x86-Built-in-Functions.html
gcc.gnu.org
https://github.com/gcc-mirror/gcc/blob/gcc-5-branch/gcc/config/i386/immintrin.h
github.com
https://software.intel.com/sites/landingpage/IntrinsicsGuide/
software.intel.com
https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html
gcc.gnu.org
https://software.intel.com/sites/default/files/m/d/4/1/d/8/11MC12_Avoiding_2BAVX-SSE_2BTransition_2BPenalties_2Brh_2Bfinal.pdf
software.intel.com
https://software.intel.com/en-us/articles/introduction-to-intel-advanced-vector-extensions/
software.intel.com
https://en.wikipedia.org/wiki/Aliasing_(computing
en.wikipedia.org
https://en.wikipedia.org/wiki/Streaming_SIMD_Extensions
en.wikipedia.org
https://gcc.gnu.org/
gcc.gnu.org
https://www.gnu.org/s/libc/
gnu.org
https://www.fefe.de/dietlibc/
fefe.de
https://www.uclibc.org/
uclibc.org
https://en.wikipedia.org/wiki/Complex_instruction_set_computing
en.wikipedia.org
http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-optimization-manual.pdf
intel.com
https://www.musl-libc.org/
musl-libc.org
https://gitlab.com/gsauthof/musl/blob/e738b8cbe64b6dd3ed9f47b6d4cd7eb2c422b38d/src/string/memchr.c
gitlab.com
http://www.openwall.com/lists/musl/2016/09/18/3
openwall.com
SPARC and PPC find benchmark results Read at the source ↗
gms.tf
http://en.cppreference.com/w/cpp/string/char_traits/find
en.cppreference.com