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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2010-08-23 18:16:08 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2010-08-23 18:16:08 +0000 |
| commit | 250eb005d91e80b05a61345394bae9e9528151ac (patch) | |
| tree | c58d7c38b1b4ffebf842dac455d0ccd72fc251e0 /lib/Analysis/DebugInfo.cpp | |
| parent | 0e2c359a3e57e934d93298f1c666241ed0d481ee (diff) | |
Avoid O(n*m) complexity in StringRef::find_first(_not)_of(StringRef).
- Cache used characters in a bitset to reduce memory overhead to just 32 bytes.
- On my core2 this code is faster except when the checked string was very short
(smaller than the list of delimiters).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111817 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/DebugInfo.cpp')
0 files changed, 0 insertions, 0 deletions