[Mlir-commits] [mlir] [mlir][Vectorizer] Added support to Vectorize tensor.unpack (PR #76087)

[Balaji V. Iyer.]

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@@ -1385,6 +1386,88 @@ vectorizeAsLinalgGeneric(RewriterBase &rewriter, VectorizationState &state,
 
   return success();
 }
+// Vectorize an `tensor::UnPackOp` without OuterDimsPerms to these 4 Ops:
+//   Vector::TransferReadOp - Reads the Vector Array of Source data
+//   vector::TransposeOp - Transpose the Source
+//   ShapeCastOp - Reshapes the data based on the target.
+//   vector::TransferWriteOp. - Write the result vector back.
+
+static LogicalResult vectorizeAsUnpackOp(RewriterBase &rewriter,
+                                         tensor::UnPackOp unpackOp,
+                                         ArrayRef<int64_t> inputVectorSizes,
+                                         SmallVectorImpl<Value> &newResults) {
+
+  if (!unpackOp.getOuterDimsPerm().empty()) {
+    LDBG("outer dimensions perms NYI for: " << unpackOp);
+    return failure();
+  }
+
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bviyer wrote:

Added comments.

https://github.com/llvm/llvm-project/pull/76087