1 files changed, 10 insertions, 0 deletions
diff --git a/test/TableGen/UnsetBitInit.td b/test/TableGen/UnsetBitInit.td
new file mode 100644
index 0000000..91342ec
--- /dev/null
+++ b/test/TableGen/UnsetBitInit.td
@@ -0,0 +1,10 @@
+// RUN: tblgen %s
+class x {
+  field bits<32> A;
+}
+
+class y<bits<2> B> : x {
+  let A{21-20} = B;
+}
+
+def z : y<{0,?}>;