fix inverted condition.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96416 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/DAGISelMatcherGen.cpp b/utils/TableGen/DAGISelMatcherGen.cpp
index e622eec..532d3c1 100644
--- a/utils/TableGen/DAGISelMatcherGen.cpp
+++ b/utils/TableGen/DAGISelMatcherGen.cpp
@@ -137,7 +137,9 @@
     return AddMatcherNode(new CheckCondCodeMatcherNode(LeafRec->getName()));
   
   if (LeafRec->isSubClassOf("ComplexPattern")) {
-    if (!N->getName().empty()) {
+    // We can't model ComplexPattern uses that don't have their name taken yet.
+    // The OPC_CheckComplexPattern operation implicitly records the results.
+    if (N->getName().empty()) {
       errs() << "We expect complex pattern uses to have names: " << *N << "\n";
       exit(1);
     }