Optimize redundant sign extends and negation of predicates

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150601 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Hexagon/HexagonAsmPrinter.cpp b/lib/Target/Hexagon/HexagonAsmPrinter.cpp
index 5402374..4d0c5fa 100644
--- a/lib/Target/Hexagon/HexagonAsmPrinter.cpp
+++ b/lib/Target/Hexagon/HexagonAsmPrinter.cpp
@@ -125,6 +125,11 @@
       O << -value;
     }
 
+    void printHexagonNOneImmOperand(const MachineInstr *MI, unsigned OpNo,
+                                    raw_ostream &O) const {
+      O << -1;
+    }
+
     void printHexagonMEMriOperand(const MachineInstr *MI, unsigned OpNo,
                                   raw_ostream &O) {
       const MachineOperand &MO1 = MI->getOperand(OpNo);