remove Node.refs

1 files changed, 1 insertions, 4 deletions

diff --git a/main.c b/main.c
index a1736f1..4c6c274 100644
--- a/main.c
+++ b/main.c
@@ -256,8 +256,6 @@ void parse_if(Lexer *l, Proc *p) {
 		region = node_new(g, N_REGION, ctrl_if, if_false);
 		node_add_out(g, region, g->keepalive);
 		node_remove(g, ctrl_if, g->keepalive);
-		assert(if_true->refs > 0);
-		assert(if_false->refs > 0);
 	}
 	ctrl(g, region);
 	node_remove(g, if_true, g->keepalive);
@@ -540,8 +538,7 @@ Node *parse_expr(Lexer *l, Proc *p, Type *twant) {
 	Graph *g = &p->graph;
 	Node *lhs = parse_term(l, p, twant);
 	NodeType nt = tok_to_bin_op(l->tok);;
-	if (lhs->refs <= 0) lex_error(l, LE_ERROR, S("dead lhs"));
-	assert(lhs->refs > 0);
+	if (lhs->op == N_DEAD) lex_error(l, LE_ERROR, S("dead lhs"));
 	if (nt != N_START) {
 		lex_next(l);
 		/* necessary because if lhs is a deduplicated literal, it may be an input to rhs