Rename hasVolatileMemoryRef() to hasOrderedMemoryRef().

Ordered memory operations are more constrained than volatile loads and
stores because they must be ordered with respect to all other memory
operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162861 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp b/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp
index a03ed03..3d5f685 100644
--- a/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp
+++ b/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp
@@ -3474,8 +3474,8 @@
       // 1. Two loads unless they are volatile.
       // 2. Two stores in V4 unless they are volatile.
       else if ((DepType == SDep::Order) &&
-               !I->hasVolatileMemoryRef() &&
-               !J->hasVolatileMemoryRef()) {
+               !I->hasOrderedMemoryRef() &&
+               !J->hasOrderedMemoryRef()) {
         if (QRI->Subtarget.hasV4TOps() &&
             // hexagonv4 allows dual store.
             MCIDI.mayStore() && MCIDJ.mayStore()) {