[mlir][python] smaller scope for vector enumgen (llvm#66992)

Don't generate enums from the main VectorOps.td file as that
transitively includes enums from Arith.

---------

Co-authored-by: Nicolas Vasilache <ntv@google.com>

mlir/python/CMakeLists.txt

@@ -381,7 +381,8 @@ declare_mlir_dialect_python_bindings(
   TD_FILE dialects/VectorOps.td
   SOURCES dialects/vector.py
   DIALECT_NAME vector
-  GEN_ENUM_BINDINGS)
+  GEN_ENUM_BINDINGS_TD_FILE
+    "dialects/VectorAttributes.td")
 
 ################################################################################
 # Python extensions.

mlir/python/mlir/dialects/VectorAttributes.td

@@ -0,0 +1,14 @@
+//===-- VectorAttributes.td - Entry point for bindings -----*- tablegen -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef PYTHON_BINDINGS_VECTOR_ATTRDEFS_TD
+#define PYTHON_BINDINGS_VECTOR_ATTRDEFS_TD
+
+include "mlir/Dialect/Vector/IR/VectorAttributes.td"
+
+#endif // PYTHON_BINDINGS_VECTOR_ATTRDEFS_TD

utils/bazel/llvm-project-overlay/mlir/python/BUILD.bazel

@@ -1353,21 +1353,34 @@ gentbl_filegroup(
     tbl_outs = [
         (
             [
-                "-gen-python-enum-bindings",
+                "-gen-python-op-bindings",
                 "-bind-dialect=vector",
             ],
-            "mlir/dialects/_vector_enum_gen.py",
+            "mlir/dialects/_vector_ops_gen.py",
         ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "mlir/dialects/VectorOps.td",
+    deps = [
+        "//mlir:ArithOpsTdFiles",
+        "//mlir:OpBaseTdFiles",
+        "//mlir:VectorOpsTdFiles",
+    ],
+)
+
+gentbl_filegroup(
+    name = "VectorAttributesPyGen",
+    tbl_outs = [
         (
             [
-                "-gen-python-op-bindings",
+                "-gen-python-enum-bindings",
                 "-bind-dialect=vector",
             ],
-            "mlir/dialects/_vector_ops_gen.py",
+            "mlir/dialects/_vector_enum_gen.py",
         ),
     ],
     tblgen = "//mlir:mlir-tblgen",
-    td_file = "mlir/dialects/VectorOps.td",
+    td_file = "mlir/dialects/VectorAttributes.td",
     deps = [
         "//mlir:ArithOpsTdFiles",
         "//mlir:OpBaseTdFiles",