From a710bf9067bd4c4217b9febc0ad277a1636ec882 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Mon, 9 Jan 2023 15:18:57 -0600
Subject: SL-18869 Optimizations -- Use _mm_prefetch to cut down on cache
 misses when iterating over render batches.

---
 indra/newview/lldrawpoolmaterials.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'indra/newview/lldrawpoolmaterials.cpp')

diff --git a/indra/newview/lldrawpoolmaterials.cpp b/indra/newview/lldrawpoolmaterials.cpp
index ec1ac6a88c..858fb871d3 100644
--- a/indra/newview/lldrawpoolmaterials.cpp
+++ b/indra/newview/lldrawpoolmaterials.cpp
@@ -203,11 +203,13 @@ void LLDrawPoolMaterials::renderDeferred(S32 pass)
 
     LLVOAvatar* lastAvatar = nullptr;
 
-	for (LLCullResult::drawinfo_iterator i = begin; i != end; ++i)
+	for (LLCullResult::drawinfo_iterator i = begin; i != end; )
 	{
         LL_PROFILE_ZONE_NAMED_CATEGORY_MATERIAL("materials draw loop");
 		LLDrawInfo& params = **i;
 		
+        LLCullResult::increment_iterator(i, end);
+
         if (specular > -1 && params.mSpecColor != lastSpecular)
         {
             lastSpecular = params.mSpecColor;
-- 
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