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  • Duncan P. N. Exon Smith's avatar
    PGO: llvm-profdata: tool for merging profiles · 846a627f
    Duncan P. N. Exon Smith authored
    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>
    
    llvm-svn: 201535
    846a627f
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