[𝘀𝗽𝗿] initial version

Created using spr 1.3.4

Author: fmayer

llvm/lib/Support/DebugCounter.cpp

@@ -172,6 +172,11 @@ DebugCounter &DebugCounter::instance() {
 void DebugCounter::push_back(const std::string &Val) {
   if (Val.empty())
     return;
+#ifdef NDEBUG
+  // isCountingEnabled is hardcoded to false in NDEBUG.
+  errs() << "Requested --debug-counter in non-debug LLVM build. This is a "
+            "no-op.\n";
+#endif
 
   // The strings should come in as counter=chunk_list
   auto CounterPair = StringRef(Val).split('=');