-
=pod
=head1 NAME
-extract - extract a function from an LLVM module
+llvm-extract - extract a function from an LLVM module
=head1 SYNOPSIS
-extract [options] --func function-name [filename]
+B<llvm-extract> [I<options>] B<--func> I<function-name> [I<filename>]
=head1 DESCRIPTION
-The B<extract> command takes the name of a function and extracts it from
-the specified LLVM bytecode file. It is primarily used as a debugging tool to
+The B<llvm-extract> command takes the name of a function and extracts it from
+the specified LLVM bitcode file. It is primarily used as a debugging tool to
reduce test cases from larger programs that are triggering a bug.
-In addition to extracting the bytecode of the specified function,
-B<extract> will also remove unreachable global variables, prototypes, and
+In addition to extracting the bitcode of the specified function,
+B<llvm-extract> will also remove unreachable global variables, prototypes, and
unused types.
-The B<extract> command reads its input from standard input if filename is
+The B<llvm-extract> command reads its input from standard input if filename is
omitted or if filename is -. The output is always written to standard output,
unless the B<-o> option is specified (see below).
=item B<-f>
-Force overwrite. Normally, B<extract> will refuse to overwrite an
-output file that already exists. With this option, B<extract>
-will overwrite the output file and replace it with new bytecode.
+Enable binary output on terminals. Normally, B<llvm-extract> will refuse to
+write raw bitcode output if the output stream is a terminal. With this option,
+B<llvm-extract> will write raw bitcode regardless of the output device.
=item B<--func> I<function-name>
-Extract the function named I<function-name> from the LLVM bytecode.
+Extract the function named I<function-name> from the LLVM bitcode. May be
+specified multiple times to extract multiple functions at once.
+
+=item B<--glob> I<global-name>
+
+Extract the global variable named I<global-name> from the LLVM bitcode. May be
+specified multiple times to extract multiple global variables at once.
-=item B<--help>
+=item B<-help>
Print a summary of command line options.
=item B<-o> I<filename>
Specify the output filename. If filename is "-" (the default), then
-B<extract> sends its output to standard output.
+B<llvm-extract> sends its output to standard output.
-=item B<--stats>
+=item B<-S>
-Print statistics.
-
-=item B<--time-passes>
-
-Record the amount of time needed for each pass and print it to standard
-error.
+Write output in LLVM intermediate language (instead of bitcode).
=back
=head1 EXIT STATUS
-If B<extract> succeeds, it will exit with 0. Otherwise, if an error
+If B<llvm-extract> succeeds, it will exit with 0. Otherwise, if an error
occurs, it will exit with a non-zero value.
=head1 SEE ALSO
-L<bugpoint>
+L<bugpoint|bugpoint>
=head1 AUTHORS
-Maintained by the LLVM Team (L<http://llvm.cs.uiuc.edu>).
+Maintained by the LLVM Team (L<http://llvm.org>).
=cut
-