fix compation / freeing

Author: tenderlove

iseq.c

@@ -182,6 +182,15 @@ rb_iseq_free(const rb_iseq_t *iseq)
 #endif
         ruby_xfree((void *)body->is_entries);
         ruby_xfree(body->call_data);
+
+        if (body->block_ccs) {
+            for (int i = 0; i < body->block_ccs->len; i++) {
+                vm_cc_invalidate(body->block_ccs->entries[i].cc);
+            }
+            ruby_xfree(body->block_ccs->entries);
+            ruby_xfree(body->block_ccs);
+        }
+
         ruby_xfree((void *)body->catch_table);
         ruby_xfree((void *)body->param.opt_table);
         if (ISEQ_MBITS_BUFLEN(body->iseq_size) > 1 && body->mark_bits.list) {
@@ -377,7 +386,9 @@ rb_iseq_mark_and_move(rb_iseq_t *iseq, bool reference_updating)
         }
 
         if (body->block_ccs) {
-            rb_cc_list_mark(body->block_ccs, (VALUE)iseq);
+            for (int i = 0; i < body->block_ccs->len; i++) {
+                rb_gc_mark_and_move_ptr(&body->block_ccs->entries[i].cc);
+            }
         }
 
         if (body->param.flags.has_kw && body->param.keyword != NULL) {

vm_insnhelper.c

@@ -5953,12 +5953,7 @@ vm_invokeblock_i(struct rb_execution_context_struct *ec,
     const struct rb_callinfo *ci = calling->cd->ci;
     VALUE block_handler = VM_CF_BLOCK_HANDLER(GET_CFP());
 
-    if (block_handler == VM_BLOCK_HANDLER_NONE) {
-        rb_vm_localjump_error("no block given (yield)", Qnil, 0);
-    }
-    else {
-        return vm_invoke_block(ec, GET_CFP(), calling, ci, false, block_handler);
-    }
+    return vm_invoke_block(ec, GET_CFP(), calling, ci, false, block_handler);
 }
 
 enum method_explorer_type {
@@ -5997,7 +5992,6 @@ vm_invokeblock_fastpath(struct rb_execution_context_struct *ec,
             const rb_iseq_t *iseq = rb_iseq_check(captured->code.iseq);
 
             // check cache
-            // if (iseq == cc->iseq, we're good
             if (LIKELY(cd->cc->klass == (VALUE)iseq)) {
                 ret = cd->cc;
             }