Add prints to checkvalidity

include/ck/tensor_operation/gpu/grid/gridwise_gemm_multiple_d_xdl_cshuffle.hpp

@@ -273,6 +273,7 @@ struct GridwiseGemmMultipleD_xdl_cshuffle
         // check consistency of desc
         if(!(M == e_grid_desc_m_n.GetLength(I0) && N == e_grid_desc_m_n.GetLength(I1)))
         {
+            printf("e_grid_desc invalid\n");
             return false;
         }
 
@@ -285,12 +286,14 @@ struct GridwiseGemmMultipleD_xdl_cshuffle
 
         if(!valid)
         {
+            printf("ds_grid_desc invalid\n");
             return false;
         }
 
         // check tile size
         if(!(M % MPerBlock == 0 && N % NPerBlock == 0 && K % KPerBlock == 0))
         {
+            printf("tile size invalid\n");
             return false;
         }
 
@@ -299,12 +302,14 @@ struct GridwiseGemmMultipleD_xdl_cshuffle
 
         if(!GridwiseGemmPipe::IsSupported(num_k_loop))
         {
+            printf("num_k_loop invalid\n");
             return false;
         }
 
         // check block-to-E-tile
         if(!block_2_etile_map.CheckValidity(e_grid_desc_m_n))
         {
+            printf("block_2_etile_map invalid\n");
             return false;
         }
 
@@ -316,6 +321,7 @@ struct GridwiseGemmMultipleD_xdl_cshuffle
              b_grid_desc_n_k.GetElementSpaceSize() * sizeof(ABDataType) <= TwoGB &&
              e_grid_desc_m_n.GetElementSpaceSize() * sizeof(EDataType) <= TwoGB))
         {
+            printf("invalid tensor (> 2GB)\n");
             return false;
         }