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| author | Tue Ly <lntue@google.com> | 2021-11-11 11:22:52 -0500 |
|---|---|---|
| committer | Tue Ly <lntue@google.com> | 2021-11-11 18:33:24 -0500 |
| commit | 499ca806dcfb5f5c842fb240e150140fb15011ed (patch) | |
| tree | a8d03c7eefef161d0a8b38d17220cecf53a11170 /lldb/source/Plugins/ScriptInterpreter/Python | |
| parent | 98f80d248d9c888c2219454c1f655bc324b80cdc (diff) | |
| download | llvm-499ca806dcfb5f5c842fb240e150140fb15011ed.zip llvm-499ca806dcfb5f5c842fb240e150140fb15011ed.tar.gz llvm-499ca806dcfb5f5c842fb240e150140fb15011ed.tar.bz2 | |
[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
Diffstat (limited to 'lldb/source/Plugins/ScriptInterpreter/Python')
0 files changed, 0 insertions, 0 deletions