Implement getPassName() for IR printing passes.

llvm-svn: 297442
diff --git a/llvm/lib/IR/IRPrintingPasses.cpp b/llvm/lib/IR/IRPrintingPasses.cpp
index 05e206c..955fdc7 100644
--- a/llvm/lib/IR/IRPrintingPasses.cpp
+++ b/llvm/lib/IR/IRPrintingPasses.cpp
@@ -70,6 +70,8 @@
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.setPreservesAll();
   }
+
+  StringRef getPassName() const override { return "Print Module IR"; }

 };
 
 class PrintFunctionPassWrapper : public FunctionPass {
@@ -91,6 +93,8 @@
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.setPreservesAll();
   }
+
+  StringRef getPassName() const override { return "Print Function IR"; }

 };
 
 class PrintBasicBlockPass : public BasicBlockPass {
@@ -111,6 +115,8 @@
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.setPreservesAll();
   }
+
+  StringRef getPassName() const override { return "Print BasicBlock IR"; }
 };
 
 }