Use StringRef in Pass/PassManager APIs (NFC)

llvm-svn: 283004
diff --git a/llvm/lib/Target/Hexagon/HexagonOptAddrMode.cpp b/llvm/lib/Target/Hexagon/HexagonOptAddrMode.cpp
index 6d176c1..2ea7003 100644
--- a/llvm/lib/Target/Hexagon/HexagonOptAddrMode.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonOptAddrMode.cpp
@@ -52,7 +52,7 @@
     PassRegistry &R = *PassRegistry::getPassRegistry();
     initializeHexagonOptAddrModePass(R);
   }
-  const char *getPassName() const override {
+  StringRef getPassName() const override {
     return "Optimize addressing mode of load/store";
   }
   void getAnalysisUsage(AnalysisUsage &AU) const override {