# llvm-as > LLVM Intermediate Representation (`.ll`) to Bitcode (`.bc`) assembler. > More information: . - Assemble an IR file: `llvm-as -o {{path/to/out.bc}} {{path/to/source.ll}}` - Assemble an IR file and include a module hash in the produced Bitcode file: `llvm-as --module-hash -o {{path/to/out.bc}} {{path/to/source.ll}}` - Read an IR file from `stdin` and assemble it: `cat {{path/to/source.ll}} | llvm-as -o {{path/to/out.bc}}`