[bazel] Replace gentbl with gentbl_cc_library (#124996)

LLVM has two tablegen generators: one in llvm/tblgen.bzl (`gentbl`,
macro-based) and one in mlir/tblgen.bzl (`gentbl_cc_library`,
rule-based). The `gentbl_cc_library` generator in MLIR has some
advantages to being a rule, and at any rate, it seems better to just use
the same tablegen rule everywhere instead of competing implementations.

utils/bazel/llvm-project-overlay/llvm/unittests/BUILD.bazel

@@ -2,7 +2,7 @@
 # See https://llvm.org/LICENSE.txt for license information.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-load("//llvm:tblgen.bzl", "gentbl")
+load("//mlir:tblgen.bzl", "gentbl_cc_library")
 
 package(
     default_visibility = ["//visibility:public"],
@@ -560,46 +560,34 @@ cc_test(
     ],
 )
 
-gentbl(
+gentbl_cc_library(
     name = "option_tests_gen",
     strip_include_prefix = "Option",
     tbl_outs = [(
-        "-gen-opt-parser-defs",
+        ["-gen-opt-parser-defs"],
         "Option/Opts.inc",
     )],
     tblgen = "//llvm:llvm-tblgen",
     td_file = "Option/Opts.td",
-    td_srcs = [
-        "//llvm:include/llvm/Option/OptParser.td",
-    ],
+    deps = ["//llvm:OptParserTdFiles"],
 )
 
-gentbl(
-    name = "automata_automata_gen",
+gentbl_cc_library(
+    name = "automata_gen",
     strip_include_prefix = "TableGen",
-    tbl_outs = [(
-        "-gen-automata",
-        "TableGen/AutomataAutomata.inc",
-    )],
+    tbl_outs = [
+        (
+            ["-gen-automata"],
+            "TableGen/AutomataAutomata.inc",
+        ),
+        (
+            ["-gen-searchable-tables"],
+            "TableGen/AutomataTables.inc",
+        ),
+    ],
     tblgen = "//llvm:llvm-tblgen",
     td_file = "TableGen/Automata.td",
-    td_srcs = ["//llvm:common_target_td_sources"] + [
-        "TableGen/Automata.td",
-    ],
-)
-
-gentbl(
-    name = "automata_tables_gen",
-    strip_include_prefix = "TableGen",
-    tbl_outs = [(
-        "-gen-searchable-tables",
-        "TableGen/AutomataTables.inc",
-    )],
-    tblgen = "//llvm:llvm-tblgen",
-    td_file = "TableGen/Automata.td",
-    td_srcs = ["//llvm:common_target_td_sources"] + [
-        "TableGen/Automata.td",
-    ],
+    deps = ["//llvm:CommonTargetTdFiles"],
 )
 
 cc_test(
@@ -743,8 +731,7 @@ cc_test(
         allow_empty = False,
     ),
     deps = [
-        ":automata_automata_gen",
-        ":automata_tables_gen",
+        ":automata_gen",
         "//llvm:Support",
         "//llvm:TableGen",
         "//llvm:TableGenGlobalISel",

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

@@ -10409,7 +10409,7 @@ gentbl_cc_library(
     ],
     tblgen = ":mlir-tblgen",
     td_file = "//llvm:include/llvm/Frontend/OpenACC/ACC.td",
-    deps = ["//llvm:acc_td_files"],
+    deps = ["//llvm:AccTdFiles"],
 )
 
 td_library(
@@ -10656,7 +10656,7 @@ gentbl_cc_library(
     td_file = "//llvm:include/llvm/Frontend/OpenMP/OMP.td",
     deps = [
         ":OpBaseTdFiles",
-        "//llvm:omp_td_files",
+        "//llvm:OmpTdFiles",
     ],
 )