From a7473b65b80ce685c8aadb82527c3fc28baab393 Mon Sep 17 00:00:00 2001
From: Protobuf Team Bot <protobuf-github-bot@google.com>
Date: Tue, 20 Dec 2022 16:45:28 -0800
Subject: [PATCH] Don't call GetReflection(), unless the result will be used.

PiperOrigin-RevId: 496782593
---
 src/google/protobuf/util/message_differencer.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/google/protobuf/util/message_differencer.cc b/src/google/protobuf/util/message_differencer.cc
index de0974fcc2..c8f6cfca47 100644
--- a/src/google/protobuf/util/message_differencer.cc
+++ b/src/google/protobuf/util/message_differencer.cc
@@ -638,12 +638,12 @@ bool MessageDifferencer::Compare(const Message& message1,
       return Compare(*data1, *data2, unpacked_any + 1, parent_fields);
     }
   }
-  const Reflection* reflection1 = message1.GetReflection();
-  const Reflection* reflection2 = message2.GetReflection();
 
   bool unknown_compare_result = true;
   // Ignore unknown fields in EQUIVALENT mode
   if (message_field_comparison_ != EQUIVALENT) {
+    const Reflection* reflection1 = message1.GetReflection();
+    const Reflection* reflection2 = message2.GetReflection();
     const UnknownFieldSet& unknown_field_set1 =
         reflection1->GetUnknownFields(message1);
     const UnknownFieldSet& unknown_field_set2 =