diff --git a/llvm/utils/TableGen/GlobalISelEmitter.cpp b/llvm/utils/TableGen/GlobalISelEmitter.cpp
--- a/llvm/utils/TableGen/GlobalISelEmitter.cpp
+++ b/llvm/utils/TableGen/GlobalISelEmitter.cpp
@@ -3359,9 +3359,11 @@
 
 static Expected<LLTCodeGen> getInstResultType(const TreePatternNode *Dst) {
   ArrayRef<TypeSetByHwMode> ChildTypes = Dst->getExtTypes();
-  if (ChildTypes.size() != 1)
-    return failedImport("Dst pattern child has multiple results");
+  if (ChildTypes.size() < 1)
+    return failedImport("Dst pattern child has no result");
 
+  // If there are multiple results, just take the first one (this is how
+  // SelectionIDAG does it).
   Optional<LLTCodeGen> MaybeOpTy;
   if (ChildTypes.front().isMachineValueType()) {
     MaybeOpTy =
@@ -4753,8 +4755,9 @@
   // We don't have a leaf node, so we have to try and infer something. Check
   // that we have an instruction that we an infer something from.
 
-  // Only handle things that produce a single type.
-  if (N->getNumTypes() != 1)
+  // Only handle things that produce at least one value (if multiple values,
+  // just take the first one).
+  if (N->getNumTypes() < 1)
     return None;
   Record *OpRec = N->getOperator();