llvm-6502/docs/CommandGuide/extract.html
John Criswell ac41ea2277 Corrected usage synopsis.
Added information regarding additional LLVM passes used, input defaults, and
output defaults.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8802 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-30 22:55:44 +00:00

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<html>
<title>
LLVM: extract tool
</title>
<body>
<center>
<h1>LLVM: extract tool</h1>
</center>
<HR>
<h3>
NAME
</h3>
extract
<h3>
SYNOPSIS
</h3>
extract [options] [filename]
<h3>
DESCRIPTION
</h3>
The 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.
<p>
In addition to extracting the bytecode of the specified function, extract will
also remove unreachable global variables, prototypes, and unused types.
<p>
The extract command will read its input from standard input if filename is
omitted or if filename is -. The output is always written to standard output.
<h3>
OPTIONS
</h3>
<ul>
<li>-func &lt;function&gt;
<br>
Extract function from the LLVM bytecode.
<p>
<li> -help
<br>
Print a summary of command line options.
<p>
<li> -stats
<br>
Print statistics.
<p>
<li> -time-passes
<br>
Record the amount of time needed for each pass and print it to standard
error.
</ul>
<h3>
EXIT STATUS
</h3>
If extract succeeds, it will exit with 0. Otherwise, if an error occurs, it
will exit with a non-zero value.
<h3>
SEE ALSO
</h3>
bugpoint
<HR>
<a href="http://llvm.cs.uiuc.edu">LLVM Team</a>
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