diff --git a/utils/bazel/llvm-project-overlay/llvm/lit_test.bzl b/utils/bazel/llvm-project-overlay/llvm/lit_test.bzl
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/llvm/lit_test.bzl
@@ -0,0 +1,49 @@
+# This file is licensed 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
+"""Rules for running lit tests."""
+
+load("@bazel_skylib//lib:paths.bzl", "paths")
+
+def lit_test(
+        name,
+        srcs,
+        args = None,
+        data = None,
+        **kwargs):
+    """Runs a single test file with LLVM's lit tool.
+
+    Args:
+      name: string. the name of the generated test target.
+      srcs: label list. The files on which to run lit.
+      args: string list. Additional arguments to pass to lit.
+        Note that `-v` and the 'srcs' paths are added automatically.
+      data: label list. Additional data dependencies of the test.
+        Note that 'srcs' targets are added automatically.
+      **kwargs: additional keyword arguments.
+
+    See https://llvm.org/docs/CommandGuide/lit.html for details on lit.
+    """
+
+    args = args or []
+    data = data or []
+
+    native.py_test(
+        name = name,
+        srcs = ["//llvm:lit"],
+        main = "//llvm:utils/lit/lit.py",
+        args = args + ["-v"] + ["$(execpath %s)" % src for src in srcs],
+        data = data + srcs,
+        legacy_create_init = False,
+        **kwargs
+    )
+
+def package_path(label):
+    """Returns the path to the package of 'label'.
+
+    Args:
+      label: label. The label to return the package path of.
+
+    For example, package_path("@foo//bar:BUILD") returns 'external/foo/bar'.
+    """
+    return paths.join(Label(label).workspace_root, Label(label).package)
diff --git a/utils/bazel/llvm-project-overlay/llvm/utils/lit/tests/BUILD.bazel b/utils/bazel/llvm-project-overlay/llvm/utils/lit/tests/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/llvm/utils/lit/tests/BUILD.bazel
@@ -0,0 +1,37 @@
+# This file is licensed 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
+
+load("//llvm:template_rule.bzl", "template_rule")
+load("//llvm:lit_test.bzl", "lit_test", "package_path")
+
+template_rule(
+    name = "lit_site_cfg",
+    testonly = True,
+    src = "lit.site.cfg.in",
+    out = "lit.site.cfg",
+    substitutions = {
+        "@LIT_SITE_CFG_IN_HEADER@": "# Autogenerated, do not edit.",
+        "@LLVM_LIT_TOOLS_DIR@": package_path("//llvm/utils/lit:BUILD"),
+        "@LLVM_SOURCE_DIR@": package_path("//llvm:BUILD"),
+        "@LLVM_BINARY_DIR@": package_path("//llvm:BUILD"),
+        "@LLVM_TOOLS_DIR@": package_path("//llvm:BUILD"),
+    },
+)
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        args = ["--path %s" % package_path("//llvm:BUILD")],
+        data = [
+            "lit.cfg",
+            "lit.site.cfg",
+            "check-tested-lit-timeout-ability",
+            "//llvm:FileCheck",
+            "//llvm:count",
+            "//llvm:not",
+        ] + glob(["Inputs/**"]),
+    )
+    for src in glob(["*/*.py"])
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch1/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch1/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch1/BUILD.bazel
@@ -0,0 +1,18 @@
+# Description:
+#   MLIR Tutorial
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+cc_binary(
+    name = "toyc-ch1",
+    srcs = [
+        "toyc.cpp",
+        "parser/AST.cpp",
+    ] + glob(["include/toy/*"]),
+    includes = ["include/"],
+    deps = [
+        "//llvm:Support",
+        "//mlir:Support",
+    ],
+)
diff --git a/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch2/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch2/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch2/BUILD.bazel
@@ -0,0 +1,66 @@
+# Description:
+#   MLIR Tutorial
+
+load("//mlir:tblgen.bzl", "gentbl_cc_library", "td_library")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+td_library(
+    name = "ToyOpsTdFiles",
+    srcs = [
+        "include/toy/Ops.td",
+    ],
+    includes = ["include"],
+    deps = [
+        "//mlir:FunctionInterfacesTdFiles",
+        "//mlir:OpBaseTdFiles",
+        "//mlir:SideEffectInterfacesTdFiles",
+    ],
+)
+
+gentbl_cc_library(
+    name = "ToyOpsIncGen",
+    tbl_outs = [
+        (
+            ["-gen-op-decls"],
+            "include/toy/Ops.h.inc",
+        ),
+        (
+            ["-gen-op-defs"],
+            "include/toy/Ops.cpp.inc",
+        ),
+        (
+            ["-gen-dialect-decls"],
+            "include/toy/Dialect.h.inc",
+        ),
+        (
+            ["-gen-dialect-defs"],
+            "include/toy/Dialect.cpp.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "include/toy/Ops.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+cc_binary(
+    name = "toyc-ch2",
+    srcs = [
+        "toyc.cpp",
+        "parser/AST.cpp",
+        "mlir/MLIRGen.cpp",
+        "mlir/Dialect.cpp",
+    ] + glob(["include/toy/*.h"]),
+    includes = ["include/"],
+    deps = [
+        ":ToyOpsIncGen",
+        "//llvm:Support",
+        "//mlir:Analysis",
+        "//mlir:IR",
+        "//mlir:Parser",
+        "//mlir:SideEffectInterfaces",
+        "//mlir:Support",
+    ],
+)
diff --git a/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch3/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch3/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch3/BUILD.bazel
@@ -0,0 +1,84 @@
+# Description:
+#   MLIR Tutorial
+
+load("//mlir:tblgen.bzl", "gentbl_cc_library", "td_library")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+td_library(
+    name = "ToyOpsTdFiles",
+    srcs = [
+        "include/toy/Ops.td",
+    ],
+    includes = ["include"],
+    deps = [
+        "//mlir:FunctionInterfacesTdFiles",
+        "//mlir:OpBaseTdFiles",
+        "//mlir:SideEffectInterfacesTdFiles",
+    ],
+)
+
+gentbl_cc_library(
+    name = "ToyOpsIncGen",
+    tbl_outs = [
+        (
+            ["-gen-op-decls"],
+            "include/toy/Ops.h.inc",
+        ),
+        (
+            ["-gen-op-defs"],
+            "include/toy/Ops.cpp.inc",
+        ),
+        (
+            ["-gen-dialect-decls"],
+            "include/toy/Dialect.h.inc",
+        ),
+        (
+            ["-gen-dialect-defs"],
+            "include/toy/Dialect.cpp.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "include/toy/Ops.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+gentbl_cc_library(
+    name = "ToyCombineIncGen",
+    strip_include_prefix = "mlir",
+    tbl_outs = [
+        (
+            ["-gen-rewriters"],
+            "mlir/ToyCombine.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "mlir/ToyCombine.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+cc_binary(
+    name = "toyc-ch3",
+    srcs = [
+        "toyc.cpp",
+        "parser/AST.cpp",
+        "mlir/MLIRGen.cpp",
+        "mlir/Dialect.cpp",
+        "mlir/ToyCombine.cpp",
+    ] + glob(["include/toy/*.h"]),
+    includes = ["include/"],
+    deps = [
+        ":ToyCombineIncGen",
+        ":ToyOpsIncGen",
+        "//llvm:Support",
+        "//mlir:Analysis",
+        "//mlir:IR",
+        "//mlir:Parser",
+        "//mlir:Pass",
+        "//mlir:SideEffectInterfaces",
+        "//mlir:Support",
+        "//mlir:Transforms",
+    ],
+)
diff --git a/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch4/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch4/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch4/BUILD.bazel
@@ -0,0 +1,108 @@
+# Description:
+#   MLIR Tutorial
+
+load("//mlir:tblgen.bzl", "gentbl_cc_library", "td_library")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+td_library(
+    name = "ToyOpsTdFiles",
+    srcs = [
+        "include/toy/Ops.td",
+        "include/toy/ShapeInferenceInterface.td",
+    ],
+    includes = ["include"],
+    deps = [
+        "//mlir:CallInterfacesTdFiles",
+        "//mlir:CastInterfacesTdFiles",
+        "//mlir:FunctionInterfacesTdFiles",
+        "//mlir:OpBaseTdFiles",
+        "//mlir:SideEffectInterfacesTdFiles",
+    ],
+)
+
+gentbl_cc_library(
+    name = "ToyInterfacesIncGen",
+    tbl_outs = [
+        (
+            ["-gen-op-interface-decls"],
+            "include/toy/ShapeInferenceOpInterfaces.h.inc",
+        ),
+        (
+            ["-gen-op-interface-defs"],
+            "include/toy/ShapeInferenceOpInterfaces.cpp.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "include/toy/ShapeInferenceInterface.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+gentbl_cc_library(
+    name = "ToyOpsIncGen",
+    tbl_outs = [
+        (
+            ["-gen-op-decls"],
+            "include/toy/Ops.h.inc",
+        ),
+        (
+            ["-gen-op-defs"],
+            "include/toy/Ops.cpp.inc",
+        ),
+        (
+            ["-gen-dialect-decls"],
+            "include/toy/Dialect.h.inc",
+        ),
+        (
+            ["-gen-dialect-defs"],
+            "include/toy/Dialect.cpp.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "include/toy/Ops.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+gentbl_cc_library(
+    name = "ToyCombineIncGen",
+    strip_include_prefix = "mlir",
+    tbl_outs = [
+        (
+            ["-gen-rewriters"],
+            "mlir/ToyCombine.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "mlir/ToyCombine.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+cc_binary(
+    name = "toyc-ch4",
+    srcs = [
+        "toyc.cpp",
+        "parser/AST.cpp",
+        "mlir/MLIRGen.cpp",
+        "mlir/Dialect.cpp",
+        "mlir/ToyCombine.cpp",
+        "mlir/ShapeInferencePass.cpp",
+    ] + glob(["include/toy/*.h"]),
+    includes = ["include/"],
+    deps = [
+        ":ToyCombineIncGen",
+        ":ToyInterfacesIncGen",
+        ":ToyOpsIncGen",
+        "//llvm:Support",
+        "//mlir:Analysis",
+        "//mlir:CastOpInterfaces",
+        "//mlir:IR",
+        "//mlir:Parser",
+        "//mlir:Pass",
+        "//mlir:SideEffectInterfaces",
+        "//mlir:Support",
+        "//mlir:TransformUtils",
+        "//mlir:Transforms",
+    ],
+)
diff --git a/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch5/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch5/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch5/BUILD.bazel
@@ -0,0 +1,115 @@
+# Description:
+#   MLIR Tutorial
+
+load("//mlir:tblgen.bzl", "gentbl_cc_library", "td_library")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+td_library(
+    name = "ToyOpsTdFiles",
+    srcs = [
+        "include/toy/Ops.td",
+        "include/toy/ShapeInferenceInterface.td",
+    ],
+    includes = ["include"],
+    deps = [
+        "//mlir:CallInterfacesTdFiles",
+        "//mlir:CastInterfacesTdFiles",
+        "//mlir:FunctionInterfacesTdFiles",
+        "//mlir:OpBaseTdFiles",
+        "//mlir:SideEffectInterfacesTdFiles",
+    ],
+)
+
+gentbl_cc_library(
+    name = "ToyInterfacesIncGen",
+    tbl_outs = [
+        (
+            ["-gen-op-interface-decls"],
+            "include/toy/ShapeInferenceOpInterfaces.h.inc",
+        ),
+        (
+            ["-gen-op-interface-defs"],
+            "include/toy/ShapeInferenceOpInterfaces.cpp.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "include/toy/ShapeInferenceInterface.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+gentbl_cc_library(
+    name = "ToyOpsIncGen",
+    tbl_outs = [
+        (
+            ["-gen-op-decls"],
+            "include/toy/Ops.h.inc",
+        ),
+        (
+            ["-gen-op-defs"],
+            "include/toy/Ops.cpp.inc",
+        ),
+        (
+            ["-gen-dialect-decls"],
+            "include/toy/Dialect.h.inc",
+        ),
+        (
+            ["-gen-dialect-defs"],
+            "include/toy/Dialect.cpp.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "include/toy/Ops.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+gentbl_cc_library(
+    name = "ToyCombineIncGen",
+    strip_include_prefix = "mlir",
+    tbl_outs = [
+        (
+            ["-gen-rewriters"],
+            "mlir/ToyCombine.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "mlir/ToyCombine.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+cc_binary(
+    name = "toyc-ch5",
+    srcs = [
+        "toyc.cpp",
+        "parser/AST.cpp",
+        "mlir/MLIRGen.cpp",
+        "mlir/Dialect.cpp",
+        "mlir/LowerToAffineLoops.cpp",
+        "mlir/ToyCombine.cpp",
+        "mlir/ShapeInferencePass.cpp",
+    ] + glob(["include/toy/*.h"]),
+    includes = ["include/"],
+    deps = [
+        ":ToyCombineIncGen",
+        ":ToyInterfacesIncGen",
+        ":ToyOpsIncGen",
+        "//llvm:Support",
+        "//mlir:AffineDialect",
+        "//mlir:AffineTransforms",
+        "//mlir:AllPassesAndDialects",
+        "//mlir:Analysis",
+        "//mlir:ArithmeticDialect",
+        "//mlir:CastOpInterfaces",
+        "//mlir:FuncDialect",
+        "//mlir:IR",
+        "//mlir:MemRefDialect",
+        "//mlir:Parser",
+        "//mlir:Pass",
+        "//mlir:SideEffectInterfaces",
+        "//mlir:Support",
+        "//mlir:TransformUtils",
+        "//mlir:Transforms",
+    ],
+)
diff --git a/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch6/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch6/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch6/BUILD.bazel
@@ -0,0 +1,130 @@
+# Description:
+#   MLIR Tutorial
+
+load("//mlir:tblgen.bzl", "gentbl_cc_library", "td_library")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+td_library(
+    name = "ToyOpsTdFiles",
+    srcs = [
+        "include/toy/Ops.td",
+        "include/toy/ShapeInferenceInterface.td",
+    ],
+    includes = ["include"],
+    deps = [
+        "//mlir:CallInterfacesTdFiles",
+        "//mlir:CastInterfacesTdFiles",
+        "//mlir:FunctionInterfacesTdFiles",
+        "//mlir:OpBaseTdFiles",
+        "//mlir:SideEffectInterfacesTdFiles",
+    ],
+)
+
+gentbl_cc_library(
+    name = "ToyInterfacesIncGen",
+    tbl_outs = [
+        (
+            ["-gen-op-interface-decls"],
+            "include/toy/ShapeInferenceOpInterfaces.h.inc",
+        ),
+        (
+            ["-gen-op-interface-defs"],
+            "include/toy/ShapeInferenceOpInterfaces.cpp.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "include/toy/ShapeInferenceInterface.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+gentbl_cc_library(
+    name = "ToyOpsIncGen",
+    tbl_outs = [
+        (
+            ["-gen-op-decls"],
+            "include/toy/Ops.h.inc",
+        ),
+        (
+            ["-gen-op-defs"],
+            "include/toy/Ops.cpp.inc",
+        ),
+        (
+            ["-gen-dialect-decls"],
+            "include/toy/Dialect.h.inc",
+        ),
+        (
+            ["-gen-dialect-defs"],
+            "include/toy/Dialect.cpp.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "include/toy/Ops.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+gentbl_cc_library(
+    name = "ToyCombineIncGen",
+    strip_include_prefix = "mlir",
+    tbl_outs = [
+        (
+            ["-gen-rewriters"],
+            "mlir/ToyCombine.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "mlir/ToyCombine.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+cc_binary(
+    name = "toyc-ch6",
+    srcs = [
+        "toyc.cpp",
+        "parser/AST.cpp",
+        "mlir/MLIRGen.cpp",
+        "mlir/Dialect.cpp",
+        "mlir/LowerToAffineLoops.cpp",
+        "mlir/LowerToLLVM.cpp",
+        "mlir/ToyCombine.cpp",
+        "mlir/ShapeInferencePass.cpp",
+    ] + glob(["include/toy/*.h"]),
+    includes = ["include/"],
+    deps = [
+        ":ToyCombineIncGen",
+        ":ToyInterfacesIncGen",
+        ":ToyOpsIncGen",
+        "//llvm:Core",
+        "//llvm:Support",
+        "//mlir:AffineDialect",
+        "//mlir:AffineToStandard",
+        "//mlir:AffineTransforms",
+        "//mlir:AllPassesAndDialects",
+        "//mlir:Analysis",
+        "//mlir:ArithmeticDialect",
+        "//mlir:ArithmeticToLLVM",
+        "//mlir:CastOpInterfaces",
+        "//mlir:ControlFlowToLLVM",
+        "//mlir:ExecutionEngine",
+        "//mlir:ExecutionEngineUtils",
+        "//mlir:FuncDialect",
+        "//mlir:FuncToLLVM",
+        "//mlir:IR",
+        "//mlir:LLVMCommonConversion",
+        "//mlir:LLVMDialect",
+        "//mlir:LLVMToLLVMIRTranslation",
+        "//mlir:MemRefDialect",
+        "//mlir:MemRefToLLVM",
+        "//mlir:Parser",
+        "//mlir:Pass",
+        "//mlir:SCFDialect",
+        "//mlir:SCFToControlFlow",
+        "//mlir:SideEffectInterfaces",
+        "//mlir:Support",
+        "//mlir:ToLLVMIRTranslation",
+        "//mlir:TransformUtils",
+        "//mlir:Transforms",
+    ],
+)
diff --git a/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch7/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch7/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/examples/toy/Ch7/BUILD.bazel
@@ -0,0 +1,130 @@
+# Description:
+#   MLIR Tutorial
+
+load("//mlir:tblgen.bzl", "gentbl_cc_library", "td_library")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+td_library(
+    name = "ToyOpsTdFiles",
+    srcs = [
+        "include/toy/Ops.td",
+        "include/toy/ShapeInferenceInterface.td",
+    ],
+    includes = ["include"],
+    deps = [
+        "//mlir:CallInterfacesTdFiles",
+        "//mlir:CastInterfacesTdFiles",
+        "//mlir:FunctionInterfacesTdFiles",
+        "//mlir:OpBaseTdFiles",
+        "//mlir:SideEffectInterfacesTdFiles",
+    ],
+)
+
+gentbl_cc_library(
+    name = "ToyInterfacesIncGen",
+    tbl_outs = [
+        (
+            ["-gen-op-interface-decls"],
+            "include/toy/ShapeInferenceOpInterfaces.h.inc",
+        ),
+        (
+            ["-gen-op-interface-defs"],
+            "include/toy/ShapeInferenceOpInterfaces.cpp.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "include/toy/ShapeInferenceInterface.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+gentbl_cc_library(
+    name = "ToyOpsIncGen",
+    tbl_outs = [
+        (
+            ["-gen-op-decls"],
+            "include/toy/Ops.h.inc",
+        ),
+        (
+            ["-gen-op-defs"],
+            "include/toy/Ops.cpp.inc",
+        ),
+        (
+            ["-gen-dialect-decls"],
+            "include/toy/Dialect.h.inc",
+        ),
+        (
+            ["-gen-dialect-defs"],
+            "include/toy/Dialect.cpp.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "include/toy/Ops.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+gentbl_cc_library(
+    name = "ToyCombineIncGen",
+    strip_include_prefix = "mlir",
+    tbl_outs = [
+        (
+            ["-gen-rewriters"],
+            "mlir/ToyCombine.inc",
+        ),
+    ],
+    tblgen = "//mlir:mlir-tblgen",
+    td_file = "mlir/ToyCombine.td",
+    deps = [":ToyOpsTdFiles"],
+)
+
+cc_binary(
+    name = "toyc-ch7",
+    srcs = [
+        "toyc.cpp",
+        "parser/AST.cpp",
+        "mlir/MLIRGen.cpp",
+        "mlir/Dialect.cpp",
+        "mlir/LowerToAffineLoops.cpp",
+        "mlir/LowerToLLVM.cpp",
+        "mlir/ToyCombine.cpp",
+        "mlir/ShapeInferencePass.cpp",
+    ] + glob(["include/toy/*.h"]),
+    includes = ["include/"],
+    deps = [
+        ":ToyCombineIncGen",
+        ":ToyInterfacesIncGen",
+        ":ToyOpsIncGen",
+        "//llvm:Core",
+        "//llvm:Support",
+        "//mlir:AffineDialect",
+        "//mlir:AffineToStandard",
+        "//mlir:AffineTransforms",
+        "//mlir:AllPassesAndDialects",
+        "//mlir:Analysis",
+        "//mlir:ArithmeticDialect",
+        "//mlir:ArithmeticToLLVM",
+        "//mlir:CastOpInterfaces",
+        "//mlir:ControlFlowToLLVM",
+        "//mlir:ExecutionEngine",
+        "//mlir:ExecutionEngineUtils",
+        "//mlir:FuncDialect",
+        "//mlir:FuncToLLVM",
+        "//mlir:IR",
+        "//mlir:LLVMCommonConversion",
+        "//mlir:LLVMDialect",
+        "//mlir:LLVMToLLVMIRTranslation",
+        "//mlir:MemRefDialect",
+        "//mlir:MemRefToLLVM",
+        "//mlir:Parser",
+        "//mlir:Pass",
+        "//mlir:SCFDialect",
+        "//mlir:SCFToControlFlow",
+        "//mlir:SideEffectInterfaces",
+        "//mlir:Support",
+        "//mlir:ToLLVMIRTranslation",
+        "//mlir:TransformUtils",
+        "//mlir:Transforms",
+    ],
+)
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/Analysis/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/Analysis/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/Analysis/BUILD.bazel
@@ -0,0 +1,17 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//mlir:mlir-opt",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob(["**/*.mlir"])
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/BUILD.bazel
--- a/utils/bazel/llvm-project-overlay/mlir/test/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/mlir/test/BUILD.bazel
@@ -3,6 +3,8 @@
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 load("//mlir:tblgen.bzl", "gentbl_cc_library", "td_library")
+load("//llvm:lit_test.bzl", "package_path")
+load("//llvm:template_rule.bzl", "template_rule")
 
 package(
     default_visibility = ["//visibility:public"],
@@ -11,6 +13,48 @@
 
 licenses(["notice"])
 
+template_rule(
+    name = "lit_site_cfg_py",
+    testonly = True,
+    src = "lit.site.cfg.py.in",
+    out = "lit.site.cfg.py",
+    substitutions = {
+        "@LIT_SITE_CFG_IN_HEADER@": "# Autogenerated, do not edit.",
+        "@LLVM_TOOLS_DIR@": package_path("//llvm:BUILD"),
+        "@ENABLE_SHARED@": "1",
+        "@ENABLE_ASSERTIONS@": "1",
+        "@MLIR_SOURCE_DIR@": package_path("//mlir:BUILD"),
+        "@MLIR_TOOLS_DIR@": package_path("//mlir:BUILD"),
+        "\"@MLIR_BINARY_DIR@\"": "os.environ[\"TEST_UNDECLARED_OUTPUTS_DIR\"]",
+        # All disabled, but required to substituted because they are not in quotes.
+        "@LLVM_BUILD_EXAMPLES@": "0",
+        "@MLIR_ENABLE_CUDA_CONVERSIONS@": "0",
+        "@MLIR_ENABLE_CUDA_RUNNER@": "0",
+        "@MLIR_ENABLE_ROCM_CONVERSIONS@": "0",
+        "@MLIR_ENABLE_ROCM_RUNNER@": "0",
+        "@MLIR_ENABLE_SPIRV_CPU_RUNNER@": "0",
+        "@MLIR_ENABLE_VULKAN_RUNNER@": "0",
+        "@MLIR_ENABLE_BINDINGS_PYTHON@": "0",
+        "@MLIR_RUN_AMX_TESTS@": "0",
+        "@MLIR_RUN_X86VECTOR_TESTS@": "0",
+        "@MLIR_RUN_CUDA_TENSOR_CORE_TESTS@": "0",
+        "@MLIR_INCLUDE_INTEGRATION_TESTS@": "0",
+    },
+)
+
+# Common data used by most lit tests.
+filegroup(
+    name = "lit_data",
+    testonly = True,
+    data = [
+        "lit.cfg.py",
+        "lit.site.cfg.py",
+        "//llvm:FileCheck",
+        "//llvm:count",
+        "//llvm:not",
+    ],
+)
+
 cc_library(
     name = "IRProducingAPITest",
     hdrs = ["APITest.h"],
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/Conversion/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/Conversion/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/Conversion/BUILD.bazel
@@ -0,0 +1,20 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//mlir:mlir-opt",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob(
+        include = ["**/*.mlir"],
+        exclude = ["GPUToROCm/lower-rocdl-kernel-to-hsaco.mlir"],
+    )
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/Dialect/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/Dialect/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/Dialect/BUILD.bazel
@@ -0,0 +1,18 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//llvm:llvm-symbolizer",
+            "//mlir:mlir-opt",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob(["**/*.mlir"])
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/IR/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/IR/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/IR/BUILD.bazel
@@ -0,0 +1,17 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//mlir:mlir-opt",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob(["**/*.mlir"])
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/Pass/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/Pass/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/Pass/BUILD.bazel
@@ -0,0 +1,17 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//mlir:mlir-opt",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob(["**/*.mlir"])
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/Rewrite/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/Rewrite/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/Rewrite/BUILD.bazel
@@ -0,0 +1,17 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//mlir:mlir-opt",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob(["**/*.mlir"])
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/Target/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/Target/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/Target/BUILD.bazel
@@ -0,0 +1,21 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//mlir:mlir-opt",
+            "//mlir:mlir-translate",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob([
+        "**/*.mlir",
+        "**/*.ll",
+    ])
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/Transforms/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/Transforms/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/Transforms/BUILD.bazel
@@ -0,0 +1,17 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//mlir:mlir-opt",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob(["**/*.mlir"])
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/mlir-linalg-ods-gen/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/mlir-linalg-ods-gen/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/mlir-linalg-ods-gen/BUILD.bazel
@@ -0,0 +1,19 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//mlir:LinalgStructuredOpsTdFiles",
+            "//mlir:mlir-linalg-ods-yaml-gen",
+            "//mlir:mlir-tblgen",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob(["**/*.yaml"])
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/mlir-lsp-server/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/mlir-lsp-server/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/mlir-lsp-server/BUILD.bazel
@@ -0,0 +1,17 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//mlir:mlir-lsp-server",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob(["**/*.test"])
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/mlir-opt/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/mlir-opt/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/mlir-opt/BUILD.bazel
@@ -0,0 +1,17 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//mlir:mlir-opt",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob(["**/*.mlir"])
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/mlir-pdll/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/mlir-pdll/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/mlir-pdll/BUILD.bazel
@@ -0,0 +1,22 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = glob(["Parser/include/**"]) + glob(["CodeGen/MLIR/include/**"]) + [
+            "//mlir/test:lit_data",
+            "//mlir:mlir-pdll",
+            "//mlir:include/mlir/IR/OpBase.td",
+            "//mlir:include/mlir/IR/DialectBase.td",
+        ],
+    )
+    for src in glob(
+        include = ["**/*.pdll"],
+        exclude = ["Parser/include/included.pdll"],
+    )
+]
diff --git a/utils/bazel/llvm-project-overlay/mlir/test/mlir-tblgen/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/test/mlir-tblgen/BUILD.bazel
new file mode 100644
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/mlir/test/mlir-tblgen/BUILD.bazel
@@ -0,0 +1,32 @@
+load("//llvm:lit_test.bzl", "lit_test")
+
+licenses(["notice"])
+
+package(default_visibility = ["//visibility:public"])
+
+[
+    lit_test(
+        name = "%s.test" % src,
+        srcs = [src],
+        data = [
+            "//llvm:include/llvm/CodeGen/SDNodeProperties.td",
+            "//llvm:include/llvm/CodeGen/ValueTypes.td",
+            "//llvm:include/llvm/Frontend/Directive/DirectiveBase.td",
+            "//llvm:include/llvm/IR/Intrinsics.td",
+            "//mlir:SideEffectInterfacesTdFiles",
+            "//mlir:include/mlir/Bindings/Python/Attributes.td",
+            "//mlir:include/mlir/Dialect/LLVMIR/LLVMOpBase.td",
+            "//mlir:include/mlir/Dialect/LLVMIR/LLVMOpsInterfaces.td",
+            "//mlir:include/mlir/IR/OpBase.td",
+            "//mlir:include/mlir/Interfaces/InferTypeOpInterface.td",
+            "//mlir:include/mlir/Interfaces/SideEffectInterfaces.td",
+            "//mlir:mlir-opt",
+            "//mlir:mlir-tblgen",
+            "//mlir/test:lit_data",
+        ],
+    )
+    for src in glob([
+        "**/*.mlir",
+        "**/*.td",
+    ])
+]