<html>
<title>
-llvm-dis
+LLVM: llvm-dis tool
</title>
-<body>
+<body bgcolor=white>
-<center>
-<h1>Low Level Virtual Machine</h1>
-</center>
+<center><h1>LLVM: <tt>llvm-dis</tt> tool</h1></center>
<HR>
-<h3>
-NAME
-</h3>
+<h3>NAME</h3>
+<tt>llvm-dis</tt>
-llvm-dis
+<h3>SYNOPSIS</h3>
+<tt>llvm-dis [options] [filename]</tt>
-<h3>
-SYNOPSIS
-</h3>
+<h3>DESCRIPTION</h3>
-llvm-dis [options] < filename>
-<h3>
-DESCRIPTION
-</h3>
+The <tt>llvm-dis</tt> command is the LLVM disassembler. It takes an LLVM
+bytecode file and converts it into LLVM assembly language or C source code with
+equivalent functionality.
+<p>
-The llvm-dis command is the LLVM disassembler. It takes an LLVM bytecode file
-and converts it into one of several human readable formats.
+If filename is omitted, <tt>llvm-dis</tt> reads its input from standard input.
+<p>
-By default, llvm-dis places its output in filename.ll, removing the .bc suffix
-if it exists.
-<h3>
-OPTIONS
-</h3>
+The default output file for <tt>llvm-dis</tt> is determined by the following logic:
+<ul>
+ <li>
+ If the input is standard input or the file -, then the output is
+ standard output.
+ <p>
+
+ <li>
+ If the input filename ends in .bc, then the output filename will be
+ identical, except that the .bc suffix will be replaced by the .ll or .c
+ suffix (for LLVM assembly language and C code, respectively).
+ <p>
+
+ <li>
+ If the input filename does not end in .bc, then the output filename will
+ be identical to the input filename, except that the .ll or .c suffix
+ will be appended to the filename (for LLVM assembly language and C code,
+ respectively).
+</ul>
+
+<h3>OPTIONS</h3>
<ul>
<li> -llvm
<br>
- Instruct llvm-dis to generate LLVM assembly code in human readable
- format. This is the default behavior.
+ Instruct <tt>llvm-dis</tt> to generate LLVM assembly code in human
+ readable format. This is the default behavior.
<p>
<li> -c
<br>
- Instruct llvm-dis to generate C source code.
+ Instruct <tt>llvm-dis</tt> to generate C source code.
<p>
<li> -f
<br>
- Force overwrite. Normally, llvm-dis will refuse to overwrite an output
- file that already exists. With this option, llvm-dis will overwrite the
- output file.
+ Force overwrite. Normally, <tt>llvm-dis</tt> will refuse to overwrite
+ an output file that already exists. With this option, <tt>llvm-dis</tt>
+ will overwrite the output file.
<p>
<li> -help
<li> -o <filename>
<br>
- Specify the output filename.
+ Specify the output filename. If filename is -, then the output is sent
+ to standard output.
<p>
- <li> -time-pdisses
+ <li> -time-passes
<br>
- Record the amount of time needed for each pdiss and print it to standard
+ Record the amount of time needed for each pass and print it to standard
error.
<p>
</ul>
-<h3>
-EXIT STATUS
-</h3>
+<h3>EXIT STATUS</h3>
+
+If <tt>llvm-dis</tt> succeeds, it will exit with 0. Otherwise, if an error
+occurs, it will exit with a non-zero value.
-If llvm-dis succeeds, it will exit with 0. Otherwise, if an error occurs, it
-will exit with a non-zero value.
+<h3>SEE ALSO</h3>
-<h3>
-SEE ALSO
-</h3>
-llvm-dis
+<a href="llvm-as.html"><tt>llvm-as</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>.
</body>
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projects / oota-llvm.git / blobdiff