define a new CodeGenInstAlias.  It has an asmstring and operand list for now,
todo: the result field.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117894 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/AsmMatcherEmitter.cpp b/utils/TableGen/AsmMatcherEmitter.cpp
index 254a719..d269749 100644
--- a/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/utils/TableGen/AsmMatcherEmitter.cpp
@@ -946,6 +946,15 @@
     Instructions.push_back(II.take());
   }
   
+  // Parse all of the InstAlias definitions.
+  std::vector<Record*> AllInstAliases =
+    Records.getAllDerivedDefinitions("InstAlias");
+  for (unsigned i = 0, e = AllInstAliases.size(); i != e; ++i) {
+    CodeGenInstAlias *Alias = new CodeGenInstAlias(AllInstAliases[i]);
+
+    
+    (void)Alias;
+  }
 
   // Build info for the register classes.
   BuildRegisterClasses(SingletonRegisters);