Use StringRef in CGDebugInfo::EmitFunctionStart.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90856 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 197c145..2238c89 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -939,16 +939,16 @@
 
 /// EmitFunctionStart - Constructs the debug code for entering a function -
 /// "llvm.dbg.func.start.".
-void CGDebugInfo::EmitFunctionStart(const char *Name, QualType FnType,
+void CGDebugInfo::EmitFunctionStart(llvm::StringRef Name, QualType FnType,
                                     llvm::Function *Fn,
                                     CGBuilderTy &Builder) {
-  const char *LinkageName = Name;
+  llvm::StringRef LinkageName(Name);
 
   // Skip the asm prefix if it exists.
   //
   // FIXME: This should probably be the unmangled name?
   if (Name[0] == '\01')
-    ++Name;
+    Name = Name.substr(1);
 
   // FIXME: Why is this using CurLoc???
   llvm::DICompileUnit Unit = getOrCreateCompileUnit(CurLoc);