2.0 Release docsrelease_20

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+.\" ========================================================================
+.\"
+.IX Title "LLVM-EXTRACT 1"
+.TH LLVM-EXTRACT 1 "2006-03-13" "CVS" "LLVM Command Guide"
+.SH "NAME"
+llvm\-extract \- extract a function from an LLVM module
+.SH "SYNOPSIS"
+.IX Header "SYNOPSIS"
+\&\fBllvm-extract\fR [\fIoptions\fR] \fB\-\-func\fR \fIfunction-name\fR [\fIfilename\fR]
+.SH "DESCRIPTION"
+.IX Header "DESCRIPTION"
+The \fBllvm-extract\fR command takes the name of a function and extracts it from
+the specified \s-1LLVM\s0 bytecode file.  It is primarily used as a debugging tool to
+reduce test cases from larger programs that are triggering a bug.
+.PP
+In addition to extracting the bytecode of the specified function,
+\&\fBllvm-extract\fR will also remove unreachable global variables, prototypes, and
+unused types.
+.PP
+The \fBllvm-extract\fR 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 \fB\-o\fR option is specified (see below).
+.SH "OPTIONS"
+.IX Header "OPTIONS"
+.IP "\fB\-f\fR" 4
+.IX Item "-f"
+Force overwrite.  Normally, \fBllvm-extract\fR will refuse to overwrite an
+output file that already exists.  With this option, \fBllvm-extract\fR
+will overwrite the output file and replace it with new bytecode.
+.IP "\fB\-\-func\fR \fIfunction-name\fR" 4
+.IX Item "--func function-name"
+Extract the function named \fIfunction-name\fR from the \s-1LLVM\s0 bytecode.
+.IP "\fB\-\-help\fR" 4
+.IX Item "--help"
+Print a summary of command line options.
+.IP "\fB\-o\fR \fIfilename\fR" 4
+.IX Item "-o filename"
+Specify the output filename.  If filename is \*(L"\-\*(R" (the default), then
+\&\fBllvm-extract\fR sends its output to standard output.
+.SH "EXIT STATUS"
+.IX Header "EXIT STATUS"
+If \fBllvm-extract\fR succeeds, it will exit with 0.  Otherwise, if an error
+occurs, it will exit with a non-zero value.
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+bugpoint
+.SH "AUTHORS"
+.IX Header "AUTHORS"
+Maintained by the \s-1LLVM\s0 Team (<http://llvm.org>).