- bugfix removeSimplequation alias der

- bugfix alias a=der(var)

git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@11697 f25d12d1-65f4-0310-ae8a-bbce733d8d8e

Author: Jens Frenkel

Compiler/BackEnd/BackendDAEOptimize.mo

@@ -914,7 +914,7 @@ algorithm
         true = BackendVariable.isDummyDerVar(var);
         // because this is a self genererated var we need not check for uncertainities
         //false = BackendVariable.varHasUncertainValueRefine(var);
-        (syst,shared,newvars) = selectAlias2(cr,cr2,var,var2,es,e2,syst,shared,mavars,negate,BackendEquation.equationSource(eqn));
+        (syst,shared,newvars) = selectAlias2(cr,cr2,var,var2,e2,es,syst,shared,mavars,negate,BackendEquation.equationSource(eqn));
       then (cr,k,es,syst,shared,mvars,newvars,1);
     // a = der(b) 
     // a is not a state
@@ -928,7 +928,7 @@ algorithm
         ((var2::_),(j::_)) = BackendVariable.getVar(cr2,vars);
         false = BackendVariable.varHasUncertainValueRefine(var);
         replaceableAlias(var);
-        (syst,shared,newvars) = selectAlias2(cr,cr2,var,var2,es,e2,syst,shared,mavars,negate,,BackendEquation.equationSource(eqn));
+        (syst,shared,newvars) = selectAlias2(cr,cr2,var,var2,e2,es,syst,shared,mavars,negate,,BackendEquation.equationSource(eqn));
       then (cr,k,es,syst,shared,mvars,newvars,1);
     */    
     // a = der(b) 

Compiler/BackEnd/SimCode.mo

@@ -7807,18 +7807,6 @@ algorithm
     case (DAE.CREF(componentRef=name),inVar) then ALIAS(name);
     case (DAE.UNARY(operator=DAE.UMINUS(_),exp=DAE.CREF(componentRef=name)),inVar) then NEGATEDALIAS(name);
     case (DAE.UNARY(operator=DAE.UMINUS_ARR(_),exp=DAE.CREF(componentRef=name)),inVar) then NEGATEDALIAS(name);
-    case (DAE.CALL(path=fname, expLst={DAE.CREF(componentRef=name)}),inVar)
-      equation
-       true = BackendVariable.isDummyDerVar(inVar);
-    then ALIAS(name);
-    case (DAE.UNARY(operator=DAE.UMINUS(_),exp=DAE.CALL(path=fname, expLst={DAE.CREF(componentRef=name)})),inVar)
-      equation
-       true = BackendVariable.isDummyDerVar(inVar);
-    then NEGATEDALIAS(name);
-    case (DAE.UNARY(operator=DAE.UMINUS_ARR(_),exp=DAE.CALL(path=fname, expLst={DAE.CREF(componentRef=name)})),inVar)
-      equation
-       true = BackendVariable.isDummyDerVar(inVar);
-    then NEGATEDALIAS(name);
     case (DAE.CALL(path=fname, expLst={DAE.CREF(componentRef=name)}),inVar)
       equation
       Builtin.isDer(fname);