[MLIR][XeGPU][Draft] XeGPU distribution patterns for load_nd, store_nd, and create_nd_tdesc.

[charithaintc]

This version avoid distributing the tensor_desc.

This depends on outstanding PR #119264

[github-actions]

⚠️ C/C++ code formatter, clang-format found issues in your code. ⚠️

You can test this locally with the following command:

git-clang-format --diff 331f3cc94b3c66eebf5ec462a8f1ee0d7704dd26 e7ca3cd82e0e4b705fcbd2f235bf005e52630995 --extensions h,cpp -- mlir/lib/Dialect/XeGPU/Transforms/XeGPUDistribute.cpp mlir/test/lib/Dialect/XeGPU/TestXeGPUTransforms.cpp mlir/include/mlir/Dialect/XeGPU/Transforms/Transforms.h mlir/lib/Dialect/XeGPU/IR/XeGPUOps.cpp mlir/tools/mlir-opt/mlir-opt.cpp

View the diff from clang-format here.

diff --git a/mlir/lib/Dialect/XeGPU/IR/XeGPUOps.cpp b/mlir/lib/Dialect/XeGPU/IR/XeGPUOps.cpp
index f0e67df3ee..84c0bf15c7 100644
--- a/mlir/lib/Dialect/XeGPU/IR/XeGPUOps.cpp
+++ b/mlir/lib/Dialect/XeGPU/IR/XeGPUOps.cpp
@@ -283,7 +283,8 @@ LogicalResult LoadNdOp::verify() {
 
   // if (tdescShape != valueShape)
   //   return emitOpError() << "Result shape doesn't match TensorDesc shape."
-  //                        << "The expected shape is " << makeString(tdescShape)
+  //                        << "The expected shape is " <<
+  //                        makeString(tdescShape)
   //                        << ". But the given shape is "
   //                        << makeString(valueShape) << ".\n";
   return success();