1 files changed, 3 insertions, 0 deletions
diff --git a/ssa.c b/ssa.c
index 3f4fa1a8..26d46baa 100644
--- a/ssa.c
+++ b/ssa.c
@@ -32,6 +32,9 @@ static inline bool is_promotable(struct symbol *type)
 	case SYM_STRUCT:
 		// we allow a single scalar field
 		// but a run of bitfields count for 1
+		// (and packed bifields are excluded).
+		if (type->packed)
+			return 0;
 		nbr = 0;
 		bf_seen = 0;
 		FOR_EACH_PTR(type->symbol_list, member) {