LLVM-DIS(1)

📦
version 18.1.8 · 10 versions
, in ubuntu stonking

💅 LLVM-DIS(1) — the LLVM disassembler, bestie edition

okay so bestie, you know how LLVM has a whole little family of tools? This is llvm-dis, from the LLVM manual page squad. Think of me as your disassembler tour guide, except I actually know what I'm talking about. ✨

🌸 NAME 🌸

llvm-dis — the LLVM disassembler. that's it, that's the name, no cap.

🎀 SYNOPSIS 🎀

llvm-dis [options] [filename]

🦋 DESCRIPTION 🦋

so the llvm-dis command is the LLVM disassembler, periodt. It takes an LLVM bitcode file and converts it into human-readable LLVM assembly language. literally a glow-up from unreadable bytes to something your eyes can actually handle. 💖

If filename is omitted or specified as -, then llvm-dis reads its input from standard input. love that for us, very flexible.

If the input is being read from standard input, then llvm-dis will send its output to standard output by default. Otherwise — and this is the part people forget — the output will be written to a file named after the input file, with a .ll suffix added. And yeah, any existing .bc suffix will first be removed before that happens. iconic behaviour honestly. 🫶

You can override the choice of output file using the -o option. so if you don't like the default vibe, just say so.

✨ OPTIONS ✨

  • -f — Enable binary output on terminals. Normally, llvm-dis will refuse to write raw bitcode output if the output stream is a terminal. With this option, llvm-dis will write raw bitcode regardless of the output device. it's giving "I know what I'm doing" energy, okurrr. 💅
  • -help — Print a summary of command line options. the classic "wait what were the flags again" save. 🎀
  • -o filename — Specify the output file name. If filename is -, then the output is sent to standard output. put filename right after it, that's the whole assignment. 🦋

⭐ EXIT STATUS ⭐

If llvm-dis succeeds, it will exit with 0. yay, we ate. 🍓

Otherwise, if an error occurs, it will exit with a non-zero value. 😭 not the error era but ok, at least it tells you.

🔥 SEE ALSO 🔥

  • llvm-as(1) <llvm-as.html> — the other half of the duo, go say hi.

👑 Author 👑

Maintained by the LLVM Team (https://llvm.org/). they keep it running, we keep it cute. 💜

2003-2026, LLVM Project

and that's the whole page bestie, go disassemble something iconic. 💖✨

— with love from the LLVM Project, source/version 15, dated 2026-09-09, page LLVM-DIS(1). slay. 🎀💅

📦 where this page comes from