1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
index a0bccfc5e57..878ed09550a 100644
--- a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -1057,6 +1057,11 @@ static EEVT::TypeSet getImplicitType(Record *R, unsigned ResNo,
     const CodeGenTarget &T = TP.getDAGPatterns().getTargetInfo();
     return EEVT::TypeSet(T.getRegisterVTs(R));
   }
+
+  if (R->isSubClassOf("SubRegIndex")) {
+    assert(ResNo == 0 && "SubRegisterIndices only produce one result!");
+    return EEVT::TypeSet();
+  }
   
   if (R->isSubClassOf("ValueType") || R->isSubClassOf("CondCode")) {
     assert(ResNo == 0 && "This node only has one result!");