debugger: don't load registers if view is not shown

src/plugins/debugger/debuggerengine.cpp

@@ -359,6 +359,10 @@ void DebuggerEngine::handleCommand(int role, const QVariant &value)
             reloadModules();
             break;
 
+        case RequestReloadRegistersRole:
+            reloadRegisters();
+            break;
+
         case RequestExecContinueRole:
             continueInferior();
             break;

src/plugins/debugger/debuggerplugin.cpp

@@ -2548,6 +2548,11 @@ DebuggerEngine *DebuggerPlugin::sessionTemplate()
     return d->m_sessionEngine;
 }
 
+bool DebuggerPlugin::isRegisterViewVisible() const
+{
+    return d->m_registerDock->toggleViewAction()->isChecked();
+}
+
 //////////////////////////////////////////////////////////////////////
 //
 // Testing

src/plugins/debugger/debuggerplugin.h

@@ -103,6 +103,8 @@ public:
     Internal::DebuggerEngine *sessionTemplate();
     void updateState(Internal::DebuggerEngine *engine);
 
+    bool isRegisterViewVisible() const;
+
 public slots:
     void exitDebugger();  // FIXME: remove
     void clearCppCodeModelSnapshot();

src/plugins/debugger/gdb/gdbengine.cpp

@@ -3079,6 +3079,9 @@ void GdbEngine::activateSnapshot2()
 
 void GdbEngine::reloadRegisters()
 {
+    if (!plugin()->isRegisterViewVisible())
+        return;
+
     if (state() != InferiorStopped && state() != InferiorUnrunnable)
         return;
     if (!m_registerNamesListed) {