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llvm-project/libc
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Tue Ly 499ca806dc [libc] Simplify decimalStringToFloat and hexadecimalStringToFloat and improve their performance. 
Combine two loops in decimalStringToFloat and hexadecimalStringToFloat that extract the digits and re-arrange them a little bit.  This slightly improves the performance of strtof and strtod:
Running libc_str_to_float_comparison_test parse-number-fxx-test_data/data/* on my machine (Ryzen 1700)
- with glibc: ~1.92 seconds
- with current implementation: ~1.78 seconds
- with this change: ~1.67 seconds

Differential Revision: https://reviews.llvm.org/D113681
 		2021-11-11 18:33:24 -05:00
..
AOR_v20.02 Harmonize Python shebang 2020-07-16 21:53:45 +02:00
benchmarks [libc] automemcpy 2021-10-28 11:10:15 +00:00
cmake/modules [libc] add malloc funcs as external entrypoints 2021-10-27 10:21:01 -07:00
config [libc] add stpcpy and stpncpy 2021-11-04 11:39:26 -07:00
docs [libc] Add documentation for clang-tidy checks. 2020-07-06 18:15:35 -07:00
fuzzing [libc][NFC] Move utils/CPP to src/__support/CPP. 2021-10-28 15:50:00 +00:00
include [libc] add inttypes header 2021-08-26 18:04:21 +00:00
lib [libc] add malloc funcs as external entrypoints 2021-10-27 10:21:01 -07:00
loader [libc] Normalize LIBC_TARGET_MACHINE 2021-05-05 15:52:42 +00:00
spec [libc] add stpcpy and stpncpy 2021-11-04 11:39:26 -07:00
src [libc] Simplify decimalStringToFloat and hexadecimalStringToFloat and improve their performance. 2021-11-11 18:33:24 -05:00
test [libc] tweak strtof errno behavior 2021-11-11 10:17:38 -08:00
utils [libc] Add more robust compile time architecture detection 2021-11-02 11:00:33 +00:00
CMakeLists.txt [libc][NFC] Remove extra space in libc/CMakeLists.txt 2021-10-25 16:29:14 -04:00
LICENSE.TXT Rename top-level LICENSE.txt files to LICENSE.TXT 2021-03-10 21:26:24 -08:00
README.txt
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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.