Remove warnings from HexagonVLIWPacketizer.

llvm-svn: 156636
diff --git a/llvm/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp b/llvm/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp
index fa1a969..e7bdc9c 100644
--- a/llvm/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonVLIWPacketizer.cpp
@@ -3295,9 +3295,9 @@
 
     // Check to make sure that they both will have their predicates
     // evaluate identically
-    unsigned predRegNumSrc;
-    unsigned predRegNumDst;
-    const TargetRegisterClass* predRegClass;
+    unsigned predRegNumSrc = 0;
+    unsigned predRegNumDst = 0;
+    const TargetRegisterClass* predRegClass = NULL;
 
     // Get predicate register used in the source instruction
     for(unsigned opNum = 0; opNum < PacketMI->getNumOperands(); opNum++) {