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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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643 B
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30 lines
643 B
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llvm-profdata - work with profile data
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======================================
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SYNOPSIS
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--------
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:program:`llvm-profdata` [-output=output] file1 file2
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DESCRIPTION
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-----------
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The experimental :program:`llvm-profdata` tool reads two profile data files
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generated by PGO instrumentation and generates a file with merged data.
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The profile data format itself is currently textual.
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OPTIONS
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-------
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.. option:: -output=output
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This option selects the output filename. If not specified, output is to
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stdout.
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EXIT STATUS
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-----------
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:program:`llvm-profdata` returns 1 if it cannot read input files or there is a
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mismatch between their data.
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