From d99ffe604f5dfca623f4973e7431b81a1bedfb77 Mon Sep 17 00:00:00 2001 From: gingerBill Date: Sun, 7 Jul 2019 14:38:11 +0100 Subject: Fix unions with zero variants --- src/ir.cpp | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'src/ir.cpp') diff --git a/src/ir.cpp b/src/ir.cpp index b06c041e4..870c7da42 100644 --- a/src/ir.cpp +++ b/src/ir.cpp @@ -4008,8 +4008,12 @@ irValue *ir_emit_comp_against_nil(irProcedure *proc, TokenKind op_kind, irValue irValue *len = ir_map_len(proc, x); return ir_emit_comp(proc, op_kind, len, v_zero); } else if (is_type_union(t)) { - irValue *tag = ir_emit_union_tag_value(proc, x); - return ir_emit_comp(proc, op_kind, tag, v_zero); + if (type_size_of(t) == 0) { + return ir_emit_comp(proc, op_kind, v_zero, v_zero); + } else { + irValue *tag = ir_emit_union_tag_value(proc, x); + return ir_emit_comp(proc, op_kind, tag, v_zero); + } } else if (is_type_typeid(t)) { irValue *invalid_typeid = ir_value_constant(t_typeid, exact_value_i64(0)); return ir_emit_comp(proc, op_kind, x, invalid_typeid); -- cgit v1.2.3