=head1 DESCRIPTION
The B<llvm-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 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,
+In addition to extracting the bitcode of the specified function,
B<llvm-extract> will also remove unreachable global variables, prototypes, and
unused types.
=item B<-f>
-Force overwrite. Normally, B<llvm-extract> will refuse to overwrite an
-output file that already exists. With this option, B<llvm-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<--help>
+=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>
Print a summary of command line options.
Specify the output filename. If filename is "-" (the default), then
B<llvm-extract> sends its output to standard output.
+=item B<-S>
+
+Write output in LLVM intermediate language (instead of bitcode).
+
=back
=head1 EXIT STATUS