From 60a452b4853dc5651c465867344904dd6fc86703 Mon Sep 17 00:00:00 2001
From: Riccardo Cipolleschi <cipolleschi@fb.com>
Date: Tue, 30 May 2023 11:44:26 +0100
Subject: [PATCH] [LOCAL] Fix performance issues in Hermes when Debug

---
 packages/react-native/ReactAndroid/hermes-engine/build.gradle | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/react-native/ReactAndroid/hermes-engine/build.gradle b/packages/react-native/ReactAndroid/hermes-engine/build.gradle
index f241e1d36500d9..5cbda56825a15e 100644
--- a/packages/react-native/ReactAndroid/hermes-engine/build.gradle
+++ b/packages/react-native/ReactAndroid/hermes-engine/build.gradle
@@ -181,6 +181,8 @@ android {
                     // This has the (unlucky) side effect of letting AGP call the build
                     // tasks `configureCMakeRelease` while is actually building the debug flavor.
                     arguments "-DCMAKE_BUILD_TYPE=Release"
+                    // Adding -O3 to patch the issue here: https://github.com/android/ndk/issues/1740#issuecomment-1198438260
+                    cppFlags "-O3"
                 }
             }
         }