diff --git a/mlir/include/mlir/IR/Attributes.h b/mlir/include/mlir/IR/Attributes.h
index af8f68a32069..ddc05d1eb4ff 100644
--- a/mlir/include/mlir/IR/Attributes.h
+++ b/mlir/include/mlir/IR/Attributes.h
@@ -806,9 +806,7 @@ public:
   NamedAttributeList(ArrayRef<NamedAttribute> attributes);
 
   /// Return all of the attributes on this operation.
-  ArrayRef<NamedAttribute> getAttrs() const {
-    return attrs ? attrs.getValue() : llvm::None;
-  }
+  ArrayRef<NamedAttribute> getAttrs() const;
 
   /// Replace the held attributes with ones provided in 'newAttrs'.
   void setAttrs(ArrayRef<NamedAttribute> attributes);
diff --git a/mlir/lib/IR/Attributes.cpp b/mlir/lib/IR/Attributes.cpp
index fbcb1a6c535f..1e902fb2c691 100644
--- a/mlir/lib/IR/Attributes.cpp
+++ b/mlir/lib/IR/Attributes.cpp
@@ -954,6 +954,10 @@ NamedAttributeList::NamedAttributeList(ArrayRef<NamedAttribute> attributes) {
   setAttrs(attributes);
 }
 
+ArrayRef<NamedAttribute> NamedAttributeList::getAttrs() const {
+  return attrs ? attrs.getValue() : llvm::None;
+}
+
 /// Replace the held attributes with ones provided in 'newAttrs'.
 void NamedAttributeList::setAttrs(ArrayRef<NamedAttribute> attributes) {
   // Don't create an attribute list if there are no attributes.