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| author | Chandler Carruth <chandlerc@gmail.com> | 2015-09-10 06:07:03 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2015-09-10 06:07:03 +0000 |
| commit | 477121721bd8b103d2785f5fdf3f110e54dc0e54 (patch) | |
| tree | e76a7e758f6b8bc8af9fb60afdea53e5a03f4d9b /llvm/lib/Support/GraphWriter.cpp | |
| parent | 93d5d3b5dbf9c01b60c41136482668e38e5a3806 (diff) | |
| download | llvm-477121721bd8b103d2785f5fdf3f110e54dc0e54.zip llvm-477121721bd8b103d2785f5fdf3f110e54dc0e54.tar.gz llvm-477121721bd8b103d2785f5fdf3f110e54dc0e54.tar.bz2 | |
[ADT] Add a single-character version of the small vector split routine
on StringRef. Finding and splitting on a single character is
substantially faster than doing it on even a single character StringRef
-- we immediately get to a *very* tuned memchr call this way.
Even nicer, we get to this even in a debug build, shaving 18% off the
runtime of TripleTest.Normalization, helping PR23676 some more.
llvm-svn: 247244
Diffstat (limited to 'llvm/lib/Support/GraphWriter.cpp')
0 files changed, 0 insertions, 0 deletions