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<title>LLVM: llvm-prof tool</title>
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<center><h1>LLVM: <tt>llvm-prof</tt> tool</h1></center>
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<h3>NAME</h3>
<tt>llvm-prof</tt>
<h3>SYNOPSIS</h3>
<tt>llvm-prof [options] [bytecode file] [LLVM passes]</tt>
<h3>DESCRIPTION</h3>
The <tt>llvm-prof</tt> tool reads in an '<tt>llvmprof.out</tt>' file, a bytecode
file for the program, and produces a human readable report, suitable for
determining where the program hotspots are.<p>
This program is often used in conjunction with the <tt>utils/profile.sh</tt>
script. This script automatically instruments a program, runs it with the JIT,
then runs <tt>llvm-prof</tt> to format a report. To get more information about
<tt>utils/profile.sh</tt>, execute it with the <tt>--help</tt> option.<p>
<h3>OPTIONS</h3>
<ul>
<li><tt>--annotated-llvm</tt> or <tt>-A</tt><br>
In addition to the normal report printed, print out the code for the
program, annotated we execution frequency information. This can be
particularly useful when trying to visualize how frequently basic blocks
are executed. This is most useful with basic block profiling
information or better.<p>
<li><tt>--print-all-code</tt><br>
Using this option enables the <tt>--annotated-llvm</tt> option, but it
prints the entire module, instead of just the most commonly executed
functions.<p>
</ul>
<h3>EXIT STATUS</h3>
<tt>llvm-prof</tt> returns 1 if it cannot load the bytecode file or the profile
information, otherwise it exits with zero.
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Maintained by the <a href="http://llvm.cs.uiuc.edu">LLVM Team</a>.
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