add a method for comparing to see if a value has a specified name.

llvm-svn: 50465

llvm/include/llvm/Value.h

@@ -95,6 +95,10 @@ public:
   /// their end.  This always returns a non-null pointer.
   const char *getNameStart() const;
   
+  /// isName - Return true if this value has the name specified by the provided
+  /// nul terminated string.
+  bool isName(const char *N) const;
+  
   /// getNameLen - Return the length of the string, correctly handling nul
   /// characters embedded into them.
   unsigned getNameLen() const;

llvm/lib/VMCore/Value.cpp

@@ -136,6 +136,13 @@ unsigned Value::getNameLen() const {
   return Name ? Name->getKeyLength() : 0;
 }
 
+/// isName - Return true if this value has the name specified by the provided
+/// nul terminated string.
+bool Value::isName(const char *N) const {
+  unsigned InLen = strlen(N);
+  return InLen = getNameLen() && memcmp(getNameStart(), N, InLen) == 0;
+}
+
 
 std::string Value::getNameStr() const {
   if (Name == 0) return "";