From ea950d8cec25661c9bac6ba3f9a5d3459dfdea4f Mon Sep 17 00:00:00 2001
From: RamType0 <hiromu@mt-planning.com>
Date: Fri, 28 Aug 2020 17:12:03 +0900
Subject: [PATCH] Optimize ContinuationQueue and PlayerLoopRunner iteration

- Fix failing to eliminate array bounds check in PlayerLoopRunner.RunCore
- Reduce number of array bounds check of continuation iteration in ContinuationQueue.RunCore
---
 .../Plugins/UniTask/Runtime/Internal/ContinuationQueue.cs    | 5 +++--
 .../Plugins/UniTask/Runtime/Internal/PlayerLoopRunner.cs     | 1 +
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/UniTask/Assets/Plugins/UniTask/Runtime/Internal/ContinuationQueue.cs b/src/UniTask/Assets/Plugins/UniTask/Runtime/Internal/ContinuationQueue.cs
index 30bd737..5458a5d 100644
--- a/src/UniTask/Assets/Plugins/UniTask/Runtime/Internal/ContinuationQueue.cs
+++ b/src/UniTask/Assets/Plugins/UniTask/Runtime/Internal/ContinuationQueue.cs
@@ -170,8 +170,8 @@ namespace Cysharp.Threading.Tasks.Internal
 
             for (int i = 0; i < actionListCount; i++)
             {
-                var action = actionList[i];
-                actionList[i] = null;
+
+                ref var action = ref actionList[i];//Reduce array bounds check
 
                 try
                 {
@@ -181,6 +181,7 @@ namespace Cysharp.Threading.Tasks.Internal
                 {
                     UnityEngine.Debug.LogException(ex);
                 }
+                action = null;
             }
 
             {
diff --git a/src/UniTask/Assets/Plugins/UniTask/Runtime/Internal/PlayerLoopRunner.cs b/src/UniTask/Assets/Plugins/UniTask/Runtime/Internal/PlayerLoopRunner.cs
index 621ba5a..28babed 100644
--- a/src/UniTask/Assets/Plugins/UniTask/Runtime/Internal/PlayerLoopRunner.cs
+++ b/src/UniTask/Assets/Plugins/UniTask/Runtime/Internal/PlayerLoopRunner.cs
@@ -143,6 +143,7 @@ namespace Cysharp.Threading.Tasks.Internal
             {
                 var j = tail - 1;
 
+                var loopItems = this.loopItems;
                 // eliminate array-bound check for i
                 for (int i = 0; i < loopItems.Length; i++)
                 {