<html>
<title>
-extract
+LLVM: extract tool
</title>
-<body>
+<body bgcolor=white>
<center>
-<h1>Low Level Virtual Machine</h1>
+<h1>LLVM: <tt>extract</tt> tool</h1>
</center>
<HR>
-<h3>
-NAME
-</h3>
-
-extract
+<h3>NAME</h3>
+<tt>extract</tt>
<h3>
SYNOPSIS
</h3>
-extract [options] <filename> [filename ...]
+<tt>extract [options] [filename]</tt>
<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
+The <tt>extract</tt> 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,
+<tt>extract</tt> will also remove unreachable global variables, prototypes, and
+unused types.
+<p>
+
+The <tt>extract</tt> command reads its input from standard input if filename is
+omitted or if filename is -. The output is always written to standard output.
<h3>
OPTIONS
<ul>
<li>-func <function>
<br>
- Extract function from the LLVM bytecode.
+ Extract the specified 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.
+If <tt>extract</tt> succeeds, it will exit with 0. Otherwise, if an error
+occurs, it will exit with a non-zero value.
<h3>
SEE ALSO
</h3>
-bugpoint
+<a href="bugpoint.html"><tt>bugpoint</tt></a>
<HR>
-<a href="http://llvm.cs.uiuc.edu">LLVM Team</a>
+Maintained by the <a href="http://llvm.cs.uiuc.edu">LLVM Team</a>.
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projects / oota-llvm.git / blobdiff