From 50beb24c6b7fe6f73a74420f320e30dc2ee6bd34 Mon Sep 17 00:00:00 2001
From: Alexander Smorkalov <alexander.smorkalov@opencv.ai>
Date: Fri, 3 Jul 2026 16:00:13 +0300
Subject: [PATCH] Enable non-exact IPP optimizations if build-time algorithm
 hint allows it.

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

diff --git a/modules/core/src/system.cpp b/modules/core/src/system.cpp
index 9eb9d9f94c..9fecd38dbb 100644
--- a/modules/core/src/system.cpp
+++ b/modules/core/src/system.cpp
@@ -2586,7 +2586,12 @@ public:
     IPPInitSingleton()
     {
         useIPP         = true;
+
+#if defined(OPENCV_ALGO_HINT_DEFAULT)
+        useIPP_NE      = OPENCV_ALGO_HINT_DEFAULT == cv::ALGO_HINT_APPROX;
+#else
         useIPP_NE      = false;
+#endif
         ippStatus      = 0;
         funcname       = NULL;
         filename       = NULL;