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PROGRAM:

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


· merge

· 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. When using sample-based
profiles, the format of the generated file can be generated in one of three ways:

-binary (default)

Emit the profile using a binary encoding.

-text

Emit the profile in text mode.

-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.

-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.

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