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llvm-project/libc
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Guillaume Chatelet b5f04d81a2 [libc] Use different alignment for memcpy between ARM and x86. 
Aligned copy used to be 'destination aligned' for x86 but this decision was reverted in D93457 where we noticed that it was better for ARM to be 'source aligned'.
More benchmarking confirmed that it can be up to 30% faster to align copy to destination for x86. This Patch offers both implementations and switches x86 back to destination aligned.
It also fixes alignment to 32 byte on x86.

Differential Revision: https://reviews.llvm.org/D101296
 		2021-04-26 19:30:00 +00:00
..
AOR_v20.02 Harmonize Python shebang 2020-07-16 21:53:45 +02:00
benchmarks Fix errors in distributions 2021-02-11 21:53:50 +00:00
cmake/modules [libc][NFC] Add an alias named "check-llvmlibc" for "check-libc". 2021-03-22 16:55:34 +00:00
config [libc] Disable fma and fmaf for x86_64. 2021-04-21 05:01:15 +00:00
docs [libc] Add documentation for clang-tidy checks. 2020-07-06 18:15:35 -07:00
fuzzing [libc] Make FPBits a union. 2021-04-13 09:21:35 -07:00
include [libc][NFC][Obvious] Add a missing dep. 2021-01-18 22:04:20 -08:00
lib [libc] Add a target "install-llvmlibc" to install LLVM libc static archive. 2021-03-22 04:45:14 +00:00
loader [libc] Setup TLS in x86_64 loader. 2020-08-07 23:19:03 -07:00
spec [libc] Add fma to the C standard spec. 2021-04-21 06:00:35 +00:00
src [libc] Use different alignment for memcpy between ARM and x86. 2021-04-26 19:30:00 +00:00
test [libc] Use different alignment for memcpy between ARM and x86. 2021-04-26 19:30:00 +00:00
utils [libc] Enhance ArrayRef + unittests 2021-04-21 13:25:24 +00:00
CMakeLists.txt libc: Default LIBC_INSTALL_PREFIX to ${CMAKE_INSTALL_PREFIX} 2021-03-30 21:43:25 -07:00
LICENSE.TXT Rename top-level LICENSE.txt files to LICENSE.TXT 2021-03-10 21:26:24 -08:00
README.txt
…

README.txt 

LLVM libc
=========

This directory and its subdirectories contain source code for llvm-libc,
a retargetable implementation of the C standard library.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.