Use StringRef in Pass/PassManager APIs (NFC)

llvm-svn: 283004
diff --git a/llvm/lib/CodeGen/RegAllocBasic.cpp b/llvm/lib/CodeGen/RegAllocBasic.cpp
index 7803478..a558e37 100644
--- a/llvm/lib/CodeGen/RegAllocBasic.cpp
+++ b/llvm/lib/CodeGen/RegAllocBasic.cpp
@@ -76,9 +76,7 @@
   RABasic();
 
   /// Return the pass name.
-  const char* getPassName() const override {
-    return "Basic Register Allocator";
-  }
+  StringRef getPassName() const override { return "Basic Register Allocator"; }
 
   /// RABasic analysis usage.
   void getAnalysisUsage(AnalysisUsage &AU) const override;