fix inverted condition.

[oota-llvm.git] / utils / TableGen / DAGISelMatcherGen.cpp

diff --git a/utils/TableGen/DAGISelMatcherGen.cpp b/utils/TableGen/DAGISelMatcherGen.cpp
index e622eecd3c20b129a49205cab1698d795b91ce7e..532d3c1646892fabd81cce443baee3502ff8a82b 100644 (file)
--- a/utils/TableGen/DAGISelMatcherGen.cpp
+++ b/utils/TableGen/DAGISelMatcherGen.cpp
@@ -137,7 +137,9 @@ void MatcherGen::EmitLeafMatchCode(const TreePatternNode *N) {
     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);
     }