<div dir="ltr">Are you looking for something other than calling __builtin_clz from c++ or calling @llvm.ctlz.* instrinsic from IR?<div><br></div><div>I don't think we have anything that will auto converting a loop to ctlz or anything like that. We only seem to have a detection for popcount loops.</div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Aug 15, 2013 at 9:01 PM, reed kotler <span dir="ltr"><<a href="mailto:rkotler@mips.com" target="_blank">rkotler@mips.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Does anyone know some simple c/c++ code or .ll code which will cause this ctlz pattern to be emitted?<br>
<br>
Tia.<br>
<br>
Reed<br>
<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br>~Craig
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