Use StringRef in Pass/PassManager APIs (NFC)

llvm-svn: 283004
diff --git a/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp b/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
index bcb8dce..77b3aeb 100644
--- a/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
@@ -137,7 +137,7 @@
         HII(0), TRI(0), MFN(0), MRI(0), MDT(0), MLI(0) {
       initializeHexagonEarlyIfConversionPass(*PassRegistry::getPassRegistry());
     }
-    const char *getPassName() const override {
+    StringRef getPassName() const override {
       return "Hexagon early if conversion";
     }
     void getAnalysisUsage(AnalysisUsage &AU) const override {