[mlir] [MLIR][Linalg] Introduce transpose/broadcast semantic to linalg.batch… (PR #130944)

[Andrzej Warzyński]

================
@@ -1484,6 +1484,201 @@ func.func @invalid_C_map_result_dim_batch_matmul(%arg0: memref<?x?x?xf32>, %arg1
 }
 
 
+// -----
+
+func.func @missing_indexing_map_batch_reduce_matmul(%arg0: memref<?x?x?xf32>,
+     %arg1: memref<?x?x?xf32>, %arg2: memref<?x?xf32>) {
+     // expected-error @+1 {{Indexing_map attribute must have 3 affine maps}}
+     linalg.batch_reduce_matmul
+         indexing_maps = [affine_map<(batch, m, n, k) -> (batch, m, k)>,
+                          affine_map<(batch, m, n, k) -> (batch, n, k)>]
+         ins(%arg0, %arg1 : memref<?x?x?xf32>, memref<?x?x?xf32>)
+         outs(%arg2: memref<?x?xf32>)
+     return
+}
+
+// -----
+
+func.func @indexing_map_size_one_batch_reduce_matmul(%arg0: memref<?x?x?xf32>,
+     %arg1: memref<?x?x?xf32>, %arg2: memref<?x?xf32>) {
+     // expected-error @+1 {{Indexing_map attribute must have 3 affine maps}}
+     linalg.batch_reduce_matmul
+         indexing_maps = [affine_map<(batch, m, n, k) -> (batch, m, k)>]
+         ins(%arg0, %arg1 : memref<?x?x?xf32>, memref<?x?x?xf32>)
+         outs(%arg2: memref<?x?xf32>)
+     return
+
+}
+
+// -----
+
+func.func @missing_indexing_map_batch_reduce_matmul(%arg0: memref<?x?x?xf32>, %arg1: memref<?x?x?xf32>, %arg2: memref<?x?xf32>) {
+  // expected-error @+1 {{expected attribute value}}
+  linalg.batch_reduce_matmul indexing_maps = [
+                       ,
+                       affine_map<(batch, m, n, k) -> (batch, k, n)>,
+                       affine_map<(batch, m, n, k) -> (m, n)>]
+      ins(%arg0, %arg1 : memref<?x?x?xf32>, memref<?x?x?xf32>)
+      outs(%arg2 :memref<?x?xf32>)
+  return
+}
+
+// -----
+
+func.func @invalid_dim_expr_batch_reduce_matmul_a(%arg0: memref<?x?x?xf32>, %arg1: memref<?x?x?xf32>, %arg2: memref<?x?xf32>) {
----------------
banach-space wrote:

[nit] `a` in `@missing_indexing_map_batch_reduce_matmul_a` refers to matrix `A` (please use caps for matrices), but the argument name is `%arg0`. This is confusing, could you unify? Thanks!

https://github.com/llvm/llvm-project/pull/130944