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<div class="moz-cite-prefix">On 4/3/2018 11:15 AM, Kevin Neal wrote:<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Courier
New";color:#44546A">Hmmm, a quick look at the
documentation for TargetTransformInfo doesn't look<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Courier
New";color:#44546A">like it.
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Courier
New";color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Courier
New";color:#44546A">In LegalizeDAG.cpp it uses
TLI.getOperationAction() to find out if an SDNode<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Courier
New";color:#44546A">should be expanded by the legalizer
or passed down to the target. That's what<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Courier
New";color:#44546A">I need to know, but I need it in a
pass pre-legalization.</span></p>
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<br>
Right; you probably need to add a TTI hook (which can call into
TLI).<br>
<br>
The ScalarizeMaskedMemIntrin pass is a good example to follow.<br>
<br>
-Eli<br>
<br>
<pre class="moz-signature" cols="72">--
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project</pre>
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