From 640d77be25c8f13d9a7c4b6aea334e81d53e3768 Mon Sep 17 00:00:00 2001
From: Tomoaki Teshima <tomoaki.teshima@gmail.com>
Date: Wed, 7 Mar 2018 18:55:27 +0900
Subject: [PATCH] let the performance tests of WarpPerspective pass   * avoid
 misuse of vzeroupper on Visual Studio 2013 Update 5   * add ifdef to avoid
 unattended optimization

---
 modules/imgproc/src/imgwarp.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/modules/imgproc/src/imgwarp.cpp b/modules/imgproc/src/imgwarp.cpp
index 15db539116..9a530c4a6c 100644
--- a/modules/imgproc/src/imgwarp.cpp
+++ b/modules/imgproc/src/imgwarp.cpp
@@ -2793,6 +2793,11 @@ public:
         ParallelLoopBody(), src(_src), dst(_dst), M(_M), interpolation(_interpolation),
         borderType(_borderType), borderValue(_borderValue)
     {
+#if defined(_MSC_VER) && _MSC_VER == 1800 /* MSVS 2013 */ && CV_AVX
+        // details: https://github.com/opencv/opencv/issues/11026
+        borderValue.val[2] = _borderValue.val[2];
+        borderValue.val[3] = _borderValue.val[3];
+#endif
     }
 
     virtual void operator() (const Range& range) const