LLVM-PROFGEN(1)

🎀 NAME 🎀

Okay bestie, welcome to LLVM-PROFGEN(1) from the LLVM manual — this one is literally the LLVM SPGO profile generation tool, and it’s giving very specific sample-profiling energy. ✨

✨ 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). That’s the whole vibe: you bring the perf script data, it brings the profile file. 🫶

🌸 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 🌈

2003-2023, LLVM Project

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This page is rockin’ version 15, dated 2023-07-14, bestie 💜 — and that’s the cute little sign-off from the LLVM-PROFGEN(1) footer, no cap. 🎀