[SYCL] Moved Scheduler::getInstance method to library to make it unique across TUs.

Signed-off-by: Romanov, Vlad <[email protected]>
Signed-off-by: Vladimir Lazarev <[email protected]>

Author: romanovvlad

sycl/include/CL/sycl/detail/scheduler/scheduler.h

@@ -190,10 +190,7 @@ class Scheduler {
   //
   void parallelReadOpt();
 
-  static Scheduler &getInstance() {
-    static Scheduler instance;
-    return instance;
-  }
+  static Scheduler &getInstance();
 
   enum DumpOptions { Text = 0, WholeGraph = 1, RunGraph = 2 };
   bool getDumpFlagValue(DumpOptions DumpOption);

sycl/source/detail/scheduler/scheduler.cpp

@@ -183,6 +183,11 @@ void Scheduler::printGraphForCommand(CommandPtr Cmd,
   Cmd->printDot(Stream);
 }
 
+Scheduler &Scheduler::getInstance() {
+  static Scheduler Instance;
+  return Instance;
+}
+
 } // namespace simple_scheduler
 } // namespace sycl
 } // namespace cl