Use ComputeLatency in the MachineInstr scheduler.

llvm-svn: 59777
diff --git a/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp b/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp
index 06d8ed9..ec8fc66 100644
--- a/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp
+++ b/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp
@@ -99,6 +99,9 @@
       Terminator->addPred(SU, /*isCtrl=*/false, /*isSpecial=*/false);
     if (MI->getDesc().isTerminator() || MI->isLabel())
       Terminator = SU;
+
+    // Assign the Latency field of SU using target-provided information.
+    ComputeLatency(SU);
   }
 }
 
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
index 91a8294..aef23c5 100644
--- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
@@ -132,6 +132,7 @@
     assert(N->getNodeId() == -1 && "Node already inserted!");
     N->setNodeId(NodeSUnit->NodeNum);
 
+    // Assign the Latency field of NodeSUnit using target-provided information.
     ComputeLatency(NodeSUnit);
   }