[Mlir-commits] [mlir] [mlir][vector] Implement lowering for 1D vector.deinterleave operations (PR #93042)

[Benjamin Maxwell]

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@@ -1761,6 +1761,65 @@ struct VectorInterleaveOpLowering
   }
 };
 
+/// Conversion pattern for a `vector.deinterleave`.
+/// This supports for fixed-sized vectors and scalable vectors.
+struct VectorDeinterleaveOpLowering
+    : public ConvertOpToLLVMPattern<vector::DeinterleaveOp> {
+  using ConvertOpToLLVMPattern::ConvertOpToLLVMPattern;
+
+  LogicalResult
+  matchAndRewrite(vector::DeinterleaveOp deinterleaveOp, OpAdaptor adaptor,
+                  ConversionPatternRewriter &rewriter) const override {
+    VectorType resultType = deinterleaveOp.getResultVectorType();
+    VectorType sourceType = deinterleaveOp.getSourceVectorType();
+    auto loc = deinterleaveOp.getLoc();
+
+    if (resultType.getRank() != 1)
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MacDue wrote:

Add a comment explaining n-D deinterleaves should be lowered to 1-D first?

https://github.com/llvm/llvm-project/pull/93042