:program:`llvm-profdata` command [args...]
The :program:`llvm-profdata` tool is a small utility for working with profile data files.
.. program:: llvm-profdata merge
:program:`llvm-profdata merge` [options] [filenames...]
:program:`llvm-profdata merge` takes several profile data files generated by PGO instrumentation and merges them together into a single indexed profile data file.
.. option:: -help Print a summary of command line options.
.. option:: -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.
.. program:: llvm-profdata show
:program:`llvm-profdata show` [options] [filename]
:program:`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.
.. option:: -all-functions Print details for every function.
.. option:: -counts Print the counter values for the displayed functions.
.. option:: -function=string Print details for a function if the function's name contains the given string.
.. option:: -help Print a summary of command line options.
.. option:: -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.
:program:`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.