================
@@ -1580,9 +1580,46 @@ OpFoldResult cir::VecExtractOp::fold(FoldAdaptor
adaptor) {
}
//===----------------------------------------------------------------------===//
-// VecShuffle
+// VecShuffleOp
//===----------------------------------------------------------------------===//
+OpFoldResult cir::VecShuffleOp::fold(FoldAdaptor adaptor) {
+ auto vec1Attr =
+ mlir::dyn_cast_if_present<cir::ConstVectorAttr>(adaptor.getVec1());
+ auto vec2Attr =
+ mlir::dyn_cast_if_present<cir::ConstVectorAttr>(adaptor.getVec2());
+ if (!vec1Attr || !vec2Attr)
+ return {};
+
+ mlir::Type vec1ElemTy =
+ mlir::cast<cir::VectorType>(vec1Attr.getType()).getElementType();
+
+ mlir::ArrayAttr vec1Elts = vec1Attr.getElts();
+ mlir::ArrayAttr vec2Elts = vec2Attr.getElts();
+ mlir::ArrayAttr indicesElts = adaptor.getIndices();
+
+ SmallVector<mlir::Attribute, 16> elements;
+ elements.reserve(indicesElts.size());
+
+ uint64_t vec1Size = vec1Elts.size();
+ for (const auto &idxAttr : indicesElts.getAsRange<cir::IntAttr>()) {
+ if (idxAttr.getSInt() == -1) {
+ elements.push_back(cir::UndefAttr::get(vec1ElemTy));
+ continue;
+ }
+
+ uint64_t idxValue = idxAttr.getUInt();
+ if (idxValue < vec1Size) {
+ elements.push_back(vec1Elts[idxValue]);
+ } else {
+ elements.push_back(vec2Elts[idxValue - vec1Size]);
----------------
bcardosolopes wrote:
`elements.push_back(idxValue < vec1Size ? vec1Elts[idxValue] :
vec2Elts[idxValue - vec1Size])`
https://github.com/llvm/llvm-project/pull/143260
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