LLVM-PROFGEN(1)

NAME
llvm-profgen - LLVM SPGO profile generation tool

SYNOPSIS

llvm-profgen [commands] [options]

DESCRIPTION

The llvm-profgen utility generates a profile data file from given perf script data files for sample-based profile guided optimization(SPGO).

COMMANDS

At least one of the following commands are required:

    --perfscript=<string[,string,...]>
        Path of perf-script trace created by Linux perf tool with script command(the raw perf.data should be profiled with -b).

    --binary=<string[,string,...]>
        Path of the input profiled binary files.

    --output=<string>
        Path of the output profile file.

OPTIONS

llvm-profgen supports the following options:

    --format=[text|binary|extbinary|compbinary|gcc]
        Specify the format of the generated profile. Supported <format> are text, binary, extbinary, compbinary, gcc, see llvm-profdata for more descriptions of the format.

    --show-mmap-events
        Print mmap events.

    --show-disassembly
        Print disassembled code.

    --x86-asm-syntax=[att|intel]
        Specify whether to print assembly code in AT&T syntax (the default) or Intel syntax.

Author
Maintained by the LLVM Team (https://llvm.org/).

Copyright
2003-2026, LLVM Project