From 264aaf99df120ad18d280353bff634a10475d32c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= <marek.olsak@amd.com>
Date: Tue, 25 May 2021 17:44:17 -0400
Subject: [PATCH] mesa: don't save/restore VAO NumUpdates and IsDynamic to fix
 update tracking

NumUpdates is used to indicate whether a VAO is static or dynamic, but if
we restored an older value, it could incorrectly indicate that it's not
dynamic.

This fixes a small performance issue with torcs.

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10994>
---
 src/mesa/main/attrib.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c
index e5672a9ee5a..98c4b8afdc7 100644
--- a/src/mesa/main/attrib.c
+++ b/src/mesa/main/attrib.c
@@ -1359,8 +1359,7 @@ copy_array_object(struct gl_context *ctx,
    dest->NonZeroDivisorMask = src->NonZeroDivisorMask;
    dest->_AttributeMapMode = src->_AttributeMapMode;
    dest->NewArrays = src->NewArrays;
-   dest->NumUpdates = src->NumUpdates;
-   dest->IsDynamic = src->IsDynamic;
+   /* skip NumUpdates and IsDynamic because they can only increase, not decrease */
 }
 
 /**