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| author | Chandler Carruth <chandlerc@gmail.com> | 2012-01-05 11:05:55 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2012-01-05 11:05:55 +0000 |
| commit | 62dfc511524b28a9411f62e19d48120066c1e41b (patch) | |
| tree | cdc0710c458931e3ea07b911144a432eb2f734d3 /lib/Support/CommandLine.cpp | |
| parent | 1e141a854e0ecaace5925039159daf9dd8426196 (diff) | |
Prevent a DAGCombine from firing where there are two uses of
a combined-away node and the result of the combine isn't substantially
smaller than the input, it's just canonicalized. This is the first part
of a significant (7%) performance gain for Snappy's hot decompression
loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147604 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/CommandLine.cpp')
0 files changed, 0 insertions, 0 deletions