add a pass name to make debugging dumps nicer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22588 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelPattern.cpp b/lib/Target/PowerPC/PPCISelPattern.cpp
index c544e4d..fa737e3 100644
--- a/lib/Target/PowerPC/PPCISelPattern.cpp
+++ b/lib/Target/PowerPC/PPCISelPattern.cpp
@@ -571,6 +571,10 @@
 
   unsigned SelectAddr(SDOperand N, unsigned& Reg, int& offset);
   void SelectBranchCC(SDOperand N);
+  
+  virtual const char *getPassName() const {
+    return "PowerPC Pattern Instruction Selection";
+  } 
 };
 
 /// ExactLog2 - This function solves for (Val == 1 << (N-1)) and returns N.  It