Changes in code.

Author: Gang Y Chen

visa/G4_BB.cpp

@@ -1208,6 +1208,16 @@ INST_LIST_ITER G4_BB::getFirstInsertPos() {
   return II;
 }
 
+INST_LIST_ITER G4_BB::getLastInsertPos() {
+  INST_LIST_ITER II = begin();
+  for (INST_LIST_ITER IB = end(); II != IB; ++II) {
+    G4_INST *tI = (*II);
+    if (tI->isFlowControl() || tI == instList.back())
+      return II;
+  }
+  return II;
+}
+
 
 //
 //  Add an EOT send to the end of this BB.

visa/G4_BB.hpp

@@ -308,6 +308,8 @@ class G4_BB {
 
   // Return the first insert position if any; otherwise return end().
   INST_LIST_ITER getFirstInsertPos();
+  // return the last insert position before terminating instruction
+  INST_LIST_ITER getLastInsertPos();
 
   void addEOTSend(G4_INST *lastInst = NULL);