Merge branch 'fix_lstm2' into 'dev'

Partial fix for issue eclipse/aidge/aidge_core#167

See merge request !252

src/operator/Memorize.cpp

@@ -150,7 +150,7 @@ void Aidge::Memorize_Op::setBackend(const std::string& name, Aidge::DeviceIdx_t
 }
 
 void Aidge::Memorize_Op::forward() {
-    Operator::forward();
+    OperatorTensor::forward();
     ++mAttributes->template getAttr<MemorizeAttr::ForwardStep>();
     mAttributes->template getAttr<MemorizeAttr::ScheduleStep>() = 0;
 }

src/operator/Pop.cpp

@@ -24,6 +24,7 @@ Aidge::Elts_t Aidge::Pop_ProdConso::getNbRequiredData(const Aidge::IOIndex_t inp
     assert(mOp.getRawInput(inputIdx) && "requires valid input");
 
     const Pop_Op& op = dynamic_cast<const Pop_Op&>(mOp);
+    AIDGE_ASSERT(!op.getInput(inputIdx)->empty(), "Pop operator requires known, non-empty, input dims for scheduling. You might have an unresolved data dependency upstream in the computing graph.");
     return Elts_t::DataElts(op.getInput(inputIdx)->size()
         / op.getInput(inputIdx)->dims()[0]);
 }
@@ -93,7 +94,7 @@ std::set<std::string> Aidge::Pop_Op::getAvailableBackends() const {
 }
 
 void Aidge::Pop_Op::forward() {
-    Operator::forward();
+    OperatorTensor::forward();
     ++mAttributes->template getAttr<PopAttr::ForwardStep>();
 }