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

..

__support

[libc] Simplify decimalStringToFloat and hexadecimalStringToFloat and improve their performance.

2021-11-11 18:33:24 -05:00

assert

[libc] Switch to use a macro which does not insert a section for every libc function.

2021-01-08 23:52:35 +00:00

ctype

[libc][NFC] Add explicit casts to ctype functions

2021-08-23 18:17:20 +00:00

errno

[libc][NFC] Add dummy errno target to satisfy mixed mode builds.

2021-07-30 17:42:48 +00:00

fenv

[libc] Add extension functions fedisableexcept, feenableexcept and fegetexcept.

2021-09-10 18:44:53 +00:00

inttypes

[libc][NFC] rename str_conv_utils to str_to_integer

2021-11-03 15:56:28 -07:00

math

[libc][NFC] Move utils/CPP to src/__support/CPP.

2021-10-28 15:50:00 +00:00

signal

[libc] Switch to use a macro which does not insert a section for every libc function.

2021-01-08 23:52:35 +00:00

stdio

[libc] Add very basic stdio FILE and fwrite

2020-04-14 04:02:27 -04:00

stdlib

[libc][NFC] rename str_conv_utils to str_to_integer

2021-11-03 15:56:28 -07:00

string

[libc] add stpcpy and stpncpy

2021-11-04 11:39:26 -07:00

sys

[libc] Switch to use a macro which does not insert a section for every libc function.

2021-01-08 23:52:35 +00:00

threads

[libc] Add implementations of the C standard condition variable functions.

2021-09-28 21:18:45 +00:00

time

[libc] Introduce asctime, asctime_r to LLVM libc

2021-05-03 17:15:00 -07:00

unistd

[libc] Switch to use a macro which does not insert a section for every libc function.

2021-01-08 23:52:35 +00:00

.clang-tidy

[libc] Fix accidental inclusion of system libc headers.

2020-05-21 01:21:37 -07:00

CMakeLists.txt

[libc] add inttypes header

2021-08-26 18:04:21 +00:00