[SYCL][NFC] Small adjustments of UpdateHostRequirementCommand.

Changed where UpdateHostRequirementCommand is put in, previously it was
always added to write leafs, now it is added to read or write leafs
depending on the type of host accessor.
+ Fixed UpdateHostRequirementCommand::printDot, now it prints access
mode of dependency rather than alloca command.

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

Author: romanovvlad

sycl/source/detail/scheduler/commands.cpp

@@ -424,9 +424,7 @@ void UpdateHostRequirementCommand::printDot(std::ostream &Stream) const {
   for (const auto &Dep : MDeps) {
     Stream << "  \"" << this << "\" -> \"" << Dep.MDepCommand << "\""
            << " [ label = \"Access mode: "
-           << accessModeToString(
-                  Dep.MAllocaCmd->getAllocationReq()->MAccessMode)
-           << "\\n"
+           << accessModeToString(Dep.MReq->MAccessMode) << "\\n"
            << "MemObj: " << Dep.MAllocaCmd->getSYCLMemObj() << " \" ]"
            << std::endl;
   }

sycl/source/detail/scheduler/graph_builder.cpp

@@ -167,10 +167,8 @@ UpdateHostRequirementCommand *Scheduler::GraphBuilder::insertUpdateHostReqCmd(
     UpdateCommand->addDep(DepDesc{Dep, StoredReq, AllocaCmd});
     Dep->addUser(UpdateCommand);
   }
-  // access::mode::read_write is always used here regardless of requieremnt
-  // access mode because this node shouldn't be skipped.
-  UpdateLeafs(Deps, Record, access::mode::read_write);
-  AddNodeToLeafs(Record, UpdateCommand, access::mode::read_write);
+  UpdateLeafs(Deps, Record, Req->MAccessMode);
+  AddNodeToLeafs(Record, UpdateCommand, Req->MAccessMode);
   return UpdateCommand;
 }