commit | 0dfb5dadc6df0fdc1a25b02921d1faa3d955cd5d | [log] [tgz] |
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author | Jan Svoboda <jan_svoboda@apple.com> | Fri Oct 06 21:50:16 2023 +0200 |
committer | GitHub <noreply@github.com> | Fri Oct 06 12:50:16 2023 -0700 |
tree | 5e06c4fdc82a84bd14a2f01a546ef3550752cfab | |
parent | 4a16b51f438ad2827220bd21799bfee5ff3d55ef [diff] |
[clang][modules] Remove preloaded SLocEntries from PCM files (#66962) This commit removes the list of SLocEntry offsets to preload eagerly from PCM files. Commit introducing this functionality (258ae54a) doesn't clarify why this would be more performant than the lazy approach used regularly. Currently, the only SLocEntry the reader is supposed to preload is the predefines buffer, but in my experience, it's not actually referenced in most modules, so the time spent deserializing its SLocEntry is wasted. This is especially noticeable in the dependency scanner, where this change brings 4.56% speedup on my benchmark.
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