From f5d080789fbd5e10fc1c58fa960e6c382f500bf1 Mon Sep 17 00:00:00 2001 From: gingerBill Date: Fri, 31 Oct 2025 09:13:10 +0000 Subject: [PATCH] Fix `union(T){}` constant initialization --- src/llvm_backend_const.cpp | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/src/llvm_backend_const.cpp b/src/llvm_backend_const.cpp index a7117fe0b..952427dac 100644 --- a/src/llvm_backend_const.cpp +++ b/src/llvm_backend_const.cpp @@ -691,8 +691,13 @@ gb_internal lbValue lb_const_value(lbModule *m, Type *type, ExactValue value, lb } 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); + if (cl->elems.count == 0) { + if (cl->type == nullptr) { + return lb_const_nil(m, original_type); + } + if (are_types_identical(type_of_expr(cl->type), original_type)) { + return lb_const_nil(m, original_type); + } } }