Import LLVM, at r72732.

1 files changed, 63 insertions, 0 deletions

diff --git a/docs/CommandGuide/llvm-extract.pod b/docs/CommandGuide/llvm-extract.pod
new file mode 100644
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+++ b/docs/CommandGuide/llvm-extract.pod
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+=pod
+
+=head1 NAME
+
+llvm-extract - extract a function from an LLVM module
+
+=head1 SYNOPSIS
+
+B<llvm-extract> [I<options>] B<--func> I<function-name> [I<filename>]
+
+=head1 DESCRIPTION
+
+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 bitcode of the specified function,
+B<llvm-extract> will also remove unreachable global variables, prototypes, and
+unused types.
+
+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).
+
+=head1 OPTIONS
+
+=over
+
+=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 bitcode.
+
+=item B<--func> I<function-name>
+
+Extract the function named I<function-name> from the LLVM bitcode.
+
+=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<llvm-extract> sends its output to standard output.
+
+=back
+
+=head1 EXIT STATUS
+
+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|bugpoint>
+
+=head1 AUTHORS
+
+Maintained by the LLVM Team (L<http://llvm.org>).
+
+=cut