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llvm-profdata - Profile data tool
=================================
SYNOPSIS
--------
:program:`llvm-profdata` *command* [*args...*]
DESCRIPTION
-----------
The :program:`llvm-profdata` tool is a small utility for working with profile
data files.
COMMANDS
--------
* :ref:`merge <profdata-merge>`
* :ref:`show <profdata-show>`
.. program:: llvm-profdata merge
.. _profdata-merge:
MERGE
-----
SYNOPSIS
^^^^^^^^
:program:`llvm-profdata merge` [*options*] [*filenames...*]
DESCRIPTION
^^^^^^^^^^^
:program:`llvm-profdata merge` takes several profile data files
generated by PGO instrumentation and merges them together into a single
indexed profile data file.
OPTIONS
^^^^^^^
.. 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.
.. option:: -instr (default)
Specify that the input profile is an instrumentation-based profile.
.. option:: -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:
.. option:: -binary (default)
Emit the profile using a binary encoding. For instrumentation-based profile
the output format is the indexed binary format.
.. option:: -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.
.. option:: -gcc
Emit the profile using GCC's gcov format (Not yet supported).
.. program:: llvm-profdata show
.. _profdata-show:
SHOW
----
SYNOPSIS
^^^^^^^^
:program:`llvm-profdata show` [*options*] [*filename*]
DESCRIPTION
^^^^^^^^^^^
: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.
OPTIONS
^^^^^^^
.. 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.
.. option:: -instr (default)
Specify that the input profile is an instrumentation-based profile.
.. option:: -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.
.. option:: -sample
Specify that the input profile is a sample-based profile.
EXIT STATUS
-----------
: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.
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