diff --git a/mlir/include/mlir/IR/OperationSupport.h b/mlir/include/mlir/IR/OperationSupport.h
--- a/mlir/include/mlir/IR/OperationSupport.h
+++ b/mlir/include/mlir/IR/OperationSupport.h
@@ -302,6 +302,9 @@
   /// Return the name of the dialect this operation is registered to.
   StringRef getDialect() const;
 
+  /// Return the operation name with dialect name stripped, if it has one.
+  StringRef stripDialect() const;
+
   /// Return the name of this operation.  This always succeeds.
   StringRef getStringRef() const;
 
diff --git a/mlir/lib/IR/MLIRContext.cpp b/mlir/lib/IR/MLIRContext.cpp
--- a/mlir/lib/IR/MLIRContext.cpp
+++ b/mlir/lib/IR/MLIRContext.cpp
@@ -554,8 +554,7 @@
 }
 
 void Dialect::addOperation(AbstractOperation opInfo) {
-  assert((getNamespace().empty() ||
-          opInfo.name.split('.').first == getNamespace()) &&
+  assert((getNamespace().empty() || opInfo.dialect.name == getNamespace()) &&
          "op name doesn't start with dialect namespace");
   assert(&opInfo.dialect == this && "Dialect object mismatch");
   auto &impl = context->getImpl();
diff --git a/mlir/lib/IR/Operation.cpp b/mlir/lib/IR/Operation.cpp
--- a/mlir/lib/IR/Operation.cpp
+++ b/mlir/lib/IR/Operation.cpp
@@ -38,6 +38,12 @@
   return getStringRef().split('.').first;
 }
 
+/// Return the operation name with dialect name stripped, if it has one.
+StringRef OperationName::stripDialect() const {
+  auto splitName = getStringRef().split(".");
+  return splitName.second.empty() ? splitName.first : splitName.second;
+}
+
 /// Return the name of this operation.  This always succeeds.
 StringRef OperationName::getStringRef() const {
   if (auto *op = representation.dyn_cast<const AbstractOperation *>())