LLVM-LINK(1)                         LLVM                         LLVM-LINK(1)

NAME
       llvm-link - LLVM bitcode linker

SYNOPSIS
       llvm-link [options] filename ...

DESCRIPTION
       llvm-link takes several LLVM bitcode files and links them together into
       a single LLVM bitcode file.  It writes the output file to standard
       output, unless the -o option is used to specify a filename.

OPTIONS

       -f     Enable binary output on terminals.  Normally, llvm-link will
              refuse to write raw bitcode output if the output stream is a
              terminal. With this option, llvm-link will write raw bitcode
              regardless of the output device.

       -o filename
              Specify the output file name.  If filename is "-", then
              llvm-link will write its output to standard output.

       -S     Write output in LLVM intermediate language (instead of bitcode).

       -d     If specified, llvm-link prints a human-readable version of the
              output bitcode file to standard error.

       --help Print a summary of command line options.

       -v     Verbose mode.  Print information about what llvm-link is doing.
              This typically includes a message for each bitcode file linked
              in and for each library found.

       --override <filename>
              Adds the passed-in file to the link and overrides symbols that
              have already been declared with the definitions in the file that
              is passed in. This flag can be specified multiple times to have
              multiple files act as overrides. If a symbol is declared more
              than twice, the definition from the file declared last takes
              precedence.

       --import <function:filename>
              Specify a function that should be imported from the specified
              file for linking with ThinLTO. This option can be specified
              multiple times to import multiple functions.

       --summary-index <filename>
              Specify the path to a file containing the module summary index
              with the results of an earlier ThinLTO link. This option is
              required when --import is used.

       --internalize
              Internalize the linked symbols.

       --disable-debug-info-type-map
              Disables the use of a uniquing type map for debug info.

       --only-needed
              Link only needed symbols.

       --disable-lazy-loading
              Disable lazy module loading.

       --suppress-warnings
              Suppress all linker warnings.

       --preserve-bc-uselistorder
              Preserve the use-list order when writing LLVM bitcode.

       --preserve-ll-uselistorder
              Preserve the use-list order when writing LLVM assembly.

       --ignore-non-bitcode
              Do not error out when a non-bitcode file is encountered while
              processing an archive.

EXIT STATUS
       If llvm-link succeeds, it will exit with 0.  Otherwise, if an error
       occurs, it will exit with a non-zero value.

AUTHOR
       Maintained by the LLVM Team (https://llvm.org/).

COPYRIGHT
       2003-2024, LLVM Project

18                                2024-07-17                      LLVM-LINK(1)