Support MetaDataString, and correctly represent MetaData Values in _make_value

llvm/core.py

@@ -1478,6 +1478,17 @@ class MetaData(Value):
     def _get_operand(self, i):
         return _make_value(_core.LLVMMetaDataGetOperand(self.ptr, i))
 
+class MetaDataString(Value):
+    @staticmethod
+    def get(module, s):
+        ptr = _core.LLVMMetaDataStringGet(module.ptr, s)
+        return MetaDataString(ptr)
+
+    @property
+    def string(self):
+        '''Same as MDString::getString'''
+        return self.name
+
 #===----------------------------------------------------------------------===
 # Instruction
 #===----------------------------------------------------------------------===
@@ -1648,6 +1659,8 @@ __class_for_valueid = {
     VALUE_CONSTANT_STRUCT                 : ConstantStruct,
     VALUE_CONSTANT_VECTOR                 : ConstantVector,
     VALUE_CONSTANT_POINTER_NULL           : ConstantPointerNull,
+    VALUE_MD_NODE                         : MetaData,
+    VALUE_MD_STRING                       : MetaDataString,
     VALUE_INSTRUCTION + OPCODE_PHI        : PHINode,
     VALUE_INSTRUCTION + OPCODE_CALL       : CallOrInvokeInstruction,
     VALUE_INSTRUCTION + OPCODE_INVOKE     : CallOrInvokeInstruction,