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<p class="MsoNormal"><span style="font-size:12.0pt">It seems wrong to me that VectorUtils.cpp contains this switch statement:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">/// Return true if all of the intrinsic's arguments and return type are scalars<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">/// for the scalar form of the intrinsic, and vectors for the vector form of the<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">/// intrinsic (except operands that are marked as always being scalar by<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">/// hasVectorInstrinsicScalarOpd).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">bool llvm::isTriviallyVectorizable(Intrinsic::ID ID) {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"> switch (ID) {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"> case Intrinsic::bswap: // Begin integer bit-manipulation.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"> case Intrinsic::bitreverse:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">First it would be easy to create an attribute for this that is defined in the TD file similar to others (IntrNoMem, IntrSpeculatable, IntrWillReturn, Commutative).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Second, it should apply to target intrinsics and allow them to vectorize also.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">// Intrinsic isTriviallyVectorizable<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">def TriviallyVectorizable : IntrinsicProperty;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Would you be open to a patch for this functionality?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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