Section 1 · User commands
llvm-as.1
Package: llvm
LLVM-AS
NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXIT STATUS
SEE ALSO
AUTHOR
COPYRIGHT
NAME
llvm-as − LLVM assembler
SYNOPSIS
llvm−as [options] [filename]
DESCRIPTION
llvm−as is the LLVM assembler. It reads a file containing human−readable LLVM assembly language, translates it to LLVM bitcode, and writes the result into a file or to standard output.
If filename is omitted or is −, then llvm−as reads its input from standard input.
If an output file is not specified with the −o option, then llvm−as sends its output to a file or standard output by following these rules:
| • | If the input is standard input, then the output is standard output. | ||
| • | If the input is a file that ends with .ll, then the output file is of the same name, except that the suffix is changed to .bc. | ||
| • | If the input is a file that does not end with the .ll suffix, then the output file has the same name as the input file, except that the .bc suffix is appended. |
OPTIONS
| −f | Enable binary output on terminals. Normally, llvm−as will refuse to write raw bitcode output if the output stream is a terminal. With this option, llvm−as will write raw bitcode regardless of the output device. | ||
| −help | Print a summary of command line options. |
−o filename
Specify the output file name. If filename is −, then llvm−as sends its output to standard output.
EXIT STATUS
If llvm−as succeeds, it will exit with 0. Otherwise, if an error occurs, it will exit with a non−zero value.
SEE ALSO
llvm−dis(1), as(1)
AUTHOR
Maintained by the LLVM Team (https://llvm.org/).
COPYRIGHT
2003-2025, LLVM Project