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b6f2089d4b
These intrinsics do in fact work with non-constant index arguments. These are lowered to either the generic ISD::INSERT_VECTOR_ELT/ISD::EXTRACT_VECTOR_ELT, or to VEXTRACT_SEXT_ELT. The handling of these all accept variable indexes. Turning these into generic instructions which do allow variables introduces complications in a future change to immarg handling. Since these just turn into generic instructions, these are kind of pointless and should probably just be autoupgraded to extractelement/insertelement. llvm-svn: 366328
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