Fix #5831

1 files changed, 7 insertions, 0 deletions

diff --git a/src/llvm_backend_const.cpp b/src/llvm_backend_const.cpp
index 4c154c85a..a7117fe0b 100644
--- a/src/llvm_backend_const.cpp
+++ b/src/llvm_backend_const.cpp
@@ -689,6 +689,13 @@ gb_internal lbValue lb_const_value(lbModule *m, Type *type, ExactValue value, lb
 		if (bt->Union.variants.count == 0) {
 			return lb_const_nil(m, original_type);
 		} else if (bt->Union.variants.count == 1) {
+			if (value.kind == ExactValue_Compound) {
+				ast_node(cl, CompoundLit, value.value_compound);
+				if (cl->elems.count == 0 && cl->type == nullptr) {
+					return lb_const_nil(m, original_type);
+				}
+			}
+
 			Type *t = bt->Union.variants[0];
 			lbValue cv =  lb_const_value(m, t, value, cc);
 			GB_ASSERT(LLVMIsConstant(cv.value));