Improve tblgen code cleanliness: create an unknown_class, from which the unknown def inherits. Make tblgen check for that class, rather than checking for the def itself.
llvm-svn: 163664
diff --git a/llvm/utils/TableGen/CodeGenInstruction.cpp b/llvm/utils/TableGen/CodeGenInstruction.cpp
index 38e2b83..836279b 100644
--- a/llvm/utils/TableGen/CodeGenInstruction.cpp
+++ b/llvm/utils/TableGen/CodeGenInstruction.cpp
@@ -101,7 +101,7 @@
} else if (Rec->isSubClassOf("RegisterClass")) {
OperandType = "OPERAND_REGISTER";
} else if (!Rec->isSubClassOf("PointerLikeRegClass") &&
- Rec->getName() != "unknown")
+ !Rec->isSubClassOf("unknown_class"))
throw "Unknown operand class '" + Rec->getName() +
"' in '" + R->getName() + "' instruction!";