<div dir="ltr">That stands for "shift left". Shift right is sra for arithmetic shift right and srl for logical shift right. Not sure why we don't use ashr and lshr like IR. Instead we seem to be using the X86 mnemonic names.<div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature">~Craig</div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, May 15, 2019 at 1:03 PM Josh Sharp via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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Hi,</div>
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I got a question about the SDNode "shl"</div>
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def shl : SDNode<"ISD::SHL" , SDTIntShiftOp>;</div>
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Does it stand for "shift logical" and in what direction does it shift?</div>
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How to shift in the other direction?</div>
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Thanks.<br>
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