Use StringRef in Pass/PassManager APIs (NFC)

llvm-svn: 283004
diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
index 5813abe..e5c9395 100644
--- a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -74,16 +74,14 @@
                          std::unique_ptr<MCStreamer> Streamer)
       : AsmPrinter(TM, std::move(Streamer)), SM(*this) {}
 
-  const char *getPassName() const override {
-    return "PowerPC Assembly Printer";
-  }
+  StringRef getPassName() const override { return "PowerPC Assembly Printer"; }
 
-    MCSymbol *lookUpOrCreateTOCEntry(MCSymbol *Sym);
+  MCSymbol *lookUpOrCreateTOCEntry(MCSymbol *Sym);
 
-    virtual bool doInitialization(Module &M) override {
-      if (!TOC.empty())
-        TOC.clear();
-      return AsmPrinter::doInitialization(M);
+  virtual bool doInitialization(Module &M) override {
+    if (!TOC.empty())
+      TOC.clear();
+    return AsmPrinter::doInitialization(M);
     }
 
     void EmitInstruction(const MachineInstr *MI) override;
@@ -115,7 +113,7 @@
                                 std::unique_ptr<MCStreamer> Streamer)
         : PPCAsmPrinter(TM, std::move(Streamer)) {}
 
-    const char *getPassName() const override {
+    StringRef getPassName() const override {
       return "Linux PPC Assembly Printer";
     }
 
@@ -136,7 +134,7 @@
                                  std::unique_ptr<MCStreamer> Streamer)
         : PPCAsmPrinter(TM, std::move(Streamer)) {}
 
-    const char *getPassName() const override {
+    StringRef getPassName() const override {
       return "Darwin PPC Assembly Printer";
     }