Use StringRef in Pass/PassManager APIs (NFC)

llvm-svn: 283004
diff --git a/llvm/lib/Target/AMDGPU/SIFixControlFlowLiveIntervals.cpp b/llvm/lib/Target/AMDGPU/SIFixControlFlowLiveIntervals.cpp
index 636750d..d4d3959 100644
--- a/llvm/lib/Target/AMDGPU/SIFixControlFlowLiveIntervals.cpp
+++ b/llvm/lib/Target/AMDGPU/SIFixControlFlowLiveIntervals.cpp
@@ -37,9 +37,7 @@
 
   bool runOnMachineFunction(MachineFunction &MF) override;
 
-  const char *getPassName() const override {
-    return "SI Fix CF Live Intervals";
-  }
+  StringRef getPassName() const override { return "SI Fix CF Live Intervals"; }
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.addRequired<LiveIntervals>();