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author | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-02-17 23:22:49 +0000 |
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committer | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-02-17 23:22:49 +0000 |
commit | ddc5a010a40a7b85a020a072f9f6b4ae132e94bd (patch) | |
tree | 147cfb9555bac4adf6f6ef5a9c5cf3a8dcf69b7e /docs/GettingStarted.rst | |
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PGO: llvm-profdata: tool for merging profiles
Introducing llvm-profdata, a tool for merging profile data generated by
PGO instrumentation in clang.
- The name indicates a file extension of <name>.profdata. Eventually
profile data output by clang should be changed to that extension.
- llvm-profdata merges two profiles. However, the name is more general,
since it will likely pick up more tasks (such as summarizing a single
profile).
- llvm-profdata parses the current text-based format, but will be
updated once we settle on a binary format.
<rdar://problem/15949645>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201535 91177308-0d34-0410-b5e6-96231b3b80d8
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