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<div class="section" id="llvm-profgen-llvm-spgo-profile-generation-tool">
<h1>llvm-profgen - LLVM SPGO profile generation tool<a class="headerlink" href="#llvm-profgen-llvm-spgo-profile-generation-tool" title="Permalink to this headline">¶</a></h1>
<div class="section" id="synopsis">
<h2>SYNOPSIS<a class="headerlink" href="#synopsis" title="Permalink to this headline">¶</a></h2>
<p><strong class="program">llvm-profgen</strong> [<em>commands</em>] [<em>options</em>]</p>
</div>
<div class="section" id="description">
<h2>DESCRIPTION<a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2>
<p>The <strong class="program">llvm-profgen</strong> utility generates a profile data file
from given perf script data files for sample-based profile guided
optimization(SPGO).</p>
</div>
<div class="section" id="commands">
<h2>COMMANDS<a class="headerlink" href="#commands" title="Permalink to this headline">¶</a></h2>
<p>At least one of the following commands are required:</p>
<dl class="std option">
<dt id="cmdoption-llvm-profgen-perfscript">
<code class="sig-name descname"><span class="pre">--perfscript</span></code><code class="sig-prename descclassname"><span class="pre">=<string[,string,...]></span></code><a class="headerlink" href="#cmdoption-llvm-profgen-perfscript" title="Permalink to this definition">¶</a></dt>
<dd><p>Path of perf-script trace created by Linux perf tool with <cite>script</cite>
command(the raw perf.data should be profiled with -b).</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-profgen-binary">
<code class="sig-name descname"><span class="pre">--binary</span></code><code class="sig-prename descclassname"><span class="pre">=<string[,string,...]></span></code><a class="headerlink" href="#cmdoption-llvm-profgen-binary" title="Permalink to this definition">¶</a></dt>
<dd><p>Path of the input profiled binary files.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-profgen-output">
<code class="sig-name descname"><span class="pre">--output</span></code><code class="sig-prename descclassname"><span class="pre">=<string></span></code><a class="headerlink" href="#cmdoption-llvm-profgen-output" title="Permalink to this definition">¶</a></dt>
<dd><p>Path of the output profile file.</p>
</dd></dl>
</div>
<div class="section" id="options">
<h2>OPTIONS<a class="headerlink" href="#options" title="Permalink to this headline">¶</a></h2>
<p><strong class="program">llvm-profgen</strong> supports the following options:</p>
<dl class="std option">
<dt id="cmdoption-llvm-profgen-format">
<code class="sig-name descname"><span class="pre">--format</span></code><code class="sig-prename descclassname"><span class="pre">=[text|binary|extbinary|compbinary|gcc]</span></code><a class="headerlink" href="#cmdoption-llvm-profgen-format" title="Permalink to this definition">¶</a></dt>
<dd><p>Specify the format of the generated profile. Supported <format> are <cite>text</cite>,
<cite>binary</cite>, <cite>extbinary</cite>, <cite>compbinary</cite>, <cite>gcc</cite>, see <cite>llvm-profdata</cite> for more
descriptions of the format.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-profgen-show-mmap-events">
<code class="sig-name descname"><span class="pre">--show-mmap-events</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-profgen-show-mmap-events" title="Permalink to this definition">¶</a></dt>
<dd><p>Print mmap events.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-profgen-show-disassembly">
<code class="sig-name descname"><span class="pre">--show-disassembly</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-profgen-show-disassembly" title="Permalink to this definition">¶</a></dt>
<dd><p>Print disassembled code.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-profgen-x86-asm-syntax">
<code class="sig-name descname"><span class="pre">--x86-asm-syntax</span></code><code class="sig-prename descclassname"><span class="pre">=[att|intel]</span></code><a class="headerlink" href="#cmdoption-llvm-profgen-x86-asm-syntax" title="Permalink to this definition">¶</a></dt>
<dd><p>Specify whether to print assembly code in AT&T syntax (the default) or Intel
syntax.</p>
</dd></dl>
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