[mlir][xegpu] Add SIMT distribution support for GEMM transpose B case. #155517
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…r_and_SliceAttr' into vector_bitcast_distr
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This PR adds the features needed for supporting the GEMM with transpose B case.
Summary of changes.
1). Add distribution logic for
vector.bitcast,vector.transposeandmemref.extract_aligned_pointer_as_indexcases.2). Add layout propagation support for
vector.shape_cast,vector.broadcastandvector.bitcast3). Incorporate slice attribute and
DistributeLayoutAttrinterface with the core logic in layout prop.