[mlir] Add Python bindings to enable default passmanager timing

mlir/include/mlir-c/Pass.h

@@ -88,6 +88,10 @@ MLIR_CAPI_EXPORTED void mlirPassManagerEnableIRPrinting(
 MLIR_CAPI_EXPORTED void
 mlirPassManagerEnableVerifier(MlirPassManager passManager, bool enable);
 
+/// Enable pass timing.
+MLIR_CAPI_EXPORTED void
+mlirPassManagerEnableTiming(MlirPassManager passManager);
+
 /// Nest an OpPassManager under the top-level PassManager, the nested
 /// passmanager will only run on operations matching the provided name.
 /// The returned OpPassManager will be destroyed when the parent is destroyed.

mlir/lib/Bindings/Python/Pass.cpp

@@ -112,6 +112,12 @@ void mlir::python::populatePassManagerSubmodule(nb::module_ &m) {
             mlirPassManagerEnableVerifier(passManager.get(), enable);
           },
           "enable"_a, "Enable / disable verify-each.")
+      .def(
+          "enable_timing",
+          [](PyPassManager &passManager) {
+            mlirPassManagerEnableTiming(passManager.get());
+          },
+          "Enable pass timing.")
       .def_static(
           "parse",
           [](const std::string &pipeline, DefaultingPyMlirContext context) {

mlir/lib/CAPI/IR/Pass.cpp

@@ -75,6 +75,10 @@ void mlirPassManagerEnableVerifier(MlirPassManager passManager, bool enable) {
   unwrap(passManager)->enableVerifier(enable);
 }
 
+void mlirPassManagerEnableTiming(MlirPassManager passManager) {
+  unwrap(passManager)->enableTiming();
+}
+
 MlirOpPassManager mlirPassManagerGetNestedUnder(MlirPassManager passManager,
                                                 MlirStringRef operationName) {
   return wrap(&unwrap(passManager)->nest(unwrap(operationName)));