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| author | Douglas Gregor <dgregor@apple.com> | 2010-10-19 19:39:10 +0000 |
|---|---|---|
| committer | Douglas Gregor <dgregor@apple.com> | 2010-10-19 19:39:10 +0000 |
| commit | 362a8f21a6438bb0b1901e0b7ae44b5c33fb48ca (patch) | |
| tree | 1bf850375949cf0bef0a5759d5bd79c3f09db0c3 /lib/Serialization/ASTWriterDecl.cpp | |
| parent | 43e1b46d640e9e9c9faa784fe6a6d8252f4e776a (diff) | |
Improve the performance of typo correction, by using a simple
computation to compute the lower bound of the edit distance, so that
we can avoid computing the edit distance for names that will clearly
be rejected later. Since edit distance is such an expensive algorithm
(M x N), this leads to a 7.5x speedup when correcting NSstring ->
NSString in the presence of a Cocoa PCH.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116849 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Serialization/ASTWriterDecl.cpp')
0 files changed, 0 insertions, 0 deletions