[Mlir-commits] [mlir] [mlir][xegpu] Lower lane_data repack convert_layout to bitcast_shuffle (PR #210837)

[Jianhui Li]

================
@@ -937,6 +937,35 @@ LogicalResult TruncfOp::verify() {
   return success();
 }
 
+//===----------------------------------------------------------------------===//
+// XeGPU_BitcastShuffleOp
+//===----------------------------------------------------------------------===//
+
+LogicalResult BitcastShuffleOp::verify() {
+  Type srcType = getSourceType();
+  Type resType = getResultType();
+
+  // A bitcast_shuffle only makes sense between two different types; a
+  // same-type shuffle is a no-op.
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Jianhui-Li wrote:

Same-type means same distribution. Each lane doesn't need to shuffle data to neighbor since there is no need to redistribution. 

BTW. I just realize the PR is created with duplicated file on top of https://github.com/llvm/llvm-project/pull/210777

https://github.com/llvm/llvm-project/pull/210837