mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
8172d53a89
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13961 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
1.6 KiB
Plaintext
75 lines
1.6 KiB
Plaintext
|
|
=pod
|
|
|
|
=head1 NAME
|
|
|
|
extract - extract a function from an LLVM module
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
extract [options] --func function-name [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
|
|
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
|
|
unused types.
|
|
|
|
The B<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).
|
|
|
|
=head1 OPTIONS
|
|
|
|
=over
|
|
|
|
=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.
|
|
|
|
=item B<--func> I<function-name>
|
|
|
|
Extract the function named I<function-name> from the LLVM bytecode.
|
|
|
|
=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.
|
|
|
|
=item B<--stats>
|
|
|
|
Print statistics.
|
|
|
|
=item B<--time-passes>
|
|
|
|
Record the amount of time needed for each pass and print it to standard
|
|
error.
|
|
|
|
=back
|
|
|
|
=head1 EXIT STATUS
|
|
|
|
If B<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>
|
|
|
|
=head1 AUTHORS
|
|
|
|
Maintained by the LLVM Team (L<http://llvm.cs.uiuc.edu>).
|
|
|
|
=cut
|
|
|