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LLVM-PROFDATA(1)                     LLVM                     LLVM-PROFDATA(1)

NAME
       llvm-profdata - Profile data tool

SYNOPSIS
       llvm-profdata command [args...]

DESCRIPTION
       The llvm-profdata tool is a small utility for working with profile data
       files.

COMMANDS

       o merge

       o show

MERGE
   SYNOPSIS
       llvm-profdata merge [options] [filenames...]

   DESCRIPTION
       llvm-profdata merge takes several profile data files generated by PGO
       instrumentation and merges them together into a single indexed profile
       data file.

   OPTIONS

       -help  Print a summary of command line options.

       -output=output, -o=output
              Specify the output file name.  Output cannot be - as the
              resulting indexed profile data can't be written to standard
              output.

       -instr (default)
              Specify that the input profile is an instrumentation-based
              profile.

       -sample
              Specify that the input profile is a sample-based profile.

              The format of the generated file can be generated in one of
              three ways:

              -binary (default)

              Emit the profile using a binary encoding. For
              instrumentation-based profile the output format is the indexed
              binary format.

              -text

              Emit the profile in text mode. This option can also be used with
              both sample-based and instrumentation-based profile. When this
              option is used the profile will be dumped in the text format
              that is parsable by the profile reader.

              -gcc

              Emit the profile using GCC's gcov format (Not yet supported).

SHOW
   SYNOPSIS
       llvm-profdata show [options] [filename]

   DESCRIPTION
       llvm-profdata show takes a profile data file and displays the
       information about the profile counters for this file and for any of the
       specified function(s).

       If filename is omitted or is -, then llvm-profdata show reads its input
       from standard input.

   OPTIONS

       -all-functions
              Print details for every function.

       -counts
              Print the counter values for the displayed functions.

       -function=string
              Print details for a function if the function's name contains the
              given string.

       -help  Print a summary of command line options.

       -output=output, -o=output
              Specify the output file name.  If output is - or it isn't
              specified, then the output is sent to standard output.

       -instr (default)
              Specify that the input profile is an instrumentation-based
              profile.

       -text  Instruct the profile dumper to show profile counts in the text
              format of the instrumentation-based profile data representation.
              By default, the profile information is dumped in a more human
              readable form (also in text) with annotations.

       -sample
              Specify that the input profile is a sample-based profile.

EXIT STATUS
       llvm-profdata returns 1 if the command is omitted or is invalid, if it
       cannot read input files, or if there is a mismatch between their data.

AUTHOR
       Maintained by The LLVM Team (http://llvm.org/).

COPYRIGHT
       2003-2016, LLVM Project

3.8                               2016-02-18                  LLVM-PROFDATA(1)