Use StringRef in getPassName (NFC)

Author: kzhuravl

lib/Target/AMDGPU/AMDGPUPrintfRuntimeBinding.cpp

@@ -40,7 +40,7 @@ class LLVM_LIBRARY_VISIBILITY AMDGPUPrintfRuntimeBinding : public ModulePass {
   static char ID;
   explicit AMDGPUPrintfRuntimeBinding();
   SmallVector<Value*, 32> Printfs;
-  const char* getPassName() const override;
+  StringRef getPassName() const override;
   bool runOnModule(Module &M) override;
   bool doInitialization(Module &M) override;
   bool doFinalization(Module &M) override;
@@ -673,7 +673,7 @@ bool AMDGPUPrintfRuntimeBinding::runOnModule(Module &M) {
    return lowerPrintfForGpu(M);
 }
 
-const char* AMDGPUPrintfRuntimeBinding::getPassName() const {
+StringRef AMDGPUPrintfRuntimeBinding::getPassName() const {
   return "AMD Printf lowering part 1";
 }
 

lib/Target/AMDGPU/SIMemoryLegalizer.cpp

@@ -95,7 +95,7 @@ class SIMemoryLegalizer final : public MachineFunctionPass {
     MachineFunctionPass::getAnalysisUsage(AU);
   }
 
-  const char *getPassName() const override {
+  StringRef getPassName() const override {
     return PASS_NAME;
   }