docs/CommandGuide/llc.html


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<html>
<title>
llc
</title>

<body>

<center>
<h1>Low Level Virtual Machine</h1>
</center>
<HR>

<h3>
NAME
</h3>

llc

<h3>
SYNOPSIS
</h3>

llc [options] &lt; filename&gt;
<h3>
DESCRIPTION
</h3>

The llc command compiles LLVM bytecode into assembly language for a specified
architecture.  The assembly language output can then be passed through a native
assembler and linker to generate native code.

<h3>
OPTIONS
</h3>

<ul>
	<li>-disable-fp-elim     
	<br>
	Disable frame pointer elimination optimization
	<p>

	<li>-disable-local-ra    
	<br>
	Use Simple RA instead of Local RegAlloc
	<p>

	<li>-disable-pattern-isel
	<br>
	Use the 'simple' X86 instruction selector
	<p>

	<li>-disable-peephole    
	<br>
	Disable peephole optimization pass
	<p>

	<li>-disable-preopt      
	<br>
	Disable optimizations prior to instruction selection
	<p>

	<li>-disable-sched       
	<br>
	Disable local scheduling pass
	<p>

	<li>-disable-strip       
	<br>
	Do not strip the LLVM bytecode included in executable
	<p>

	<li>-enable-maps         
	<br>
	Emit LLVM-to-MachineCode mapping info to assembly
	<p>

	<li>-f                   
	<br>
	Overwrite output files
	<p>

	<li>-load=&lt;plugin.so&gt;
	<br>
	Load the specified plugin
	<p>

	<li>-m&lt;arch&gt;
	<br>
	Specify the architecture for which to generate assembly.  Valid
	<p>
	architectures are:

	<dl compact>
		<di> x86               
		<dd>
		IA-32 (Pentium and above)
		<p>

		<di> sparc             
		<dd>SPARC V9
	</dl>
	<p>

	<li>-o &lt;filename&gt;
	<br>
	Output filename
	<p>

	<li>-print-machineinstrs 
	<br>
	Print generated machine code
	<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.
	<p>
</ul>

<h3>
EXIT STATUS
</h3>

If llc succeeds, it will exit with 0.  Otherwise, if an error occurs, it
will exit with a non-zero value.

<h3>
SEE ALSO
</h3>
llvm-dis, lli

<HR>
<a href="http://llvm.cs.uiuc.edu">LLVM Team</a>
</body>
</html>