From d96cac134109fbf0a06d5cc270c88210fce0aade Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Mon, 23 Oct 2017 13:46:56 +0300
Subject: [PATCH] ocl: cache program build failures

To prevent unnecessary compiler invocations
---
 modules/core/src/ocl.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/core/src/ocl.cpp b/modules/core/src/ocl.cpp
index 984307e3fc..6da86b700e 100644
--- a/modules/core/src/ocl.cpp
+++ b/modules/core/src/ocl.cpp
@@ -1387,7 +1387,7 @@ struct Context::Impl
             }
         }
         Program prog(src, buildflags, errmsg);
-        if(prog.ptr())
+        // Cache result of build failures too (to prevent unnecessary compiler invocations)
         {
             cv::AutoLock lock(program_cache_mutex);
             phash.insert(std::pair<std::string, Program>(key, prog));
-- 
GitLab