# LLVM Command Guide

This document is the reference manual for the LLVM utilities. It will show you how to use the LLVM commands and what all of their options are.

## Basic Commands llvm-as Assemble a human-readable LLVM program into LLVM bytecode. llvm-dis Disassemble an LLVM bytecode file into human-readable form. analyze Analyze an LLVM bytecode file. opt Optimize an LLVM bytecode file. llc Compile an LLVM bytecode program into native machine code. lli Run an LLVM bytecode program using either an interpreter or a JIT compiler. llvm-link Link several LLVM bytecode files together into one LLVM bytecode file. llvm-nm Print out the names and types of symbols in an LLVM bytecode file. llvm-prof Transform raw '`llvmprof.out`' data into a human readable report. | ## C and C++ Front-end Commands llvmgcc GCC-based C front end for LLVM. llvmg++ GCC-based C++ front end for LLVM. gccas LLVM assembler used by GCC and other native compiler tools. gccld LLVM linker used by GCC and other native compiler tools. ## Debugging Tools bugpoint Trace an LLVM bytecode program and reduce its failure to a simple testcase. extract Extract a function from an LLVM bytecode file.

Maintained by the LLVM Team.
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