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| author | Ted Kremenek <kremenek@apple.com> | 2007-11-17 00:40:45 +0000 |
|---|---|---|
| committer | Ted Kremenek <kremenek@apple.com> | 2007-11-17 00:40:45 +0000 |
| commit | 4d1e79c8acea25f2d7e7e5dea3edcb7f131dc2e5 (patch) | |
| tree | 2bd7cac9b869f4baf2d56bf935f9a2e20445f93e /llvm/lib/Bitcode/Writer/BitcodeWriterPass.cpp | |
| parent | 8e22379303930b9396c7bee1d5c569c40a012e9e (diff) | |
| download | llvm-4d1e79c8acea25f2d7e7e5dea3edcb7f131dc2e5.zip llvm-4d1e79c8acea25f2d7e7e5dea3edcb7f131dc2e5.tar.gz llvm-4d1e79c8acea25f2d7e7e5dea3edcb7f131dc2e5.tar.bz2 | |
Implemented optimization for BatchEmitOwnedPtrs that we only emit one complete
SerializedPtrID, followed by the *differences* in IDs. The big idea is that
most IDs will be just be 1 off from the previous (either that or NULL, which
we encode as a difference if 0), so this will greatly reduce the encoding
space for extra IDs to just 1 bit per pointer.
So far this optimization reduces serialization of Carbon.h by only 1%, but
we aren't using any abbreviations now in the Bitcode file to properly take
advantage of this optimization.
llvm-svn: 44199
Diffstat (limited to 'llvm/lib/Bitcode/Writer/BitcodeWriterPass.cpp')
0 files changed, 0 insertions, 0 deletions