fix: core dump when '(*p)++'

diff --git a/core/scf_optimizer_pointer_alias.c b/core/scf_optimizer_pointer_alias.c
index 583cdb155b4402d83ae28f48456fd9556510a261..13dd2c40903254a6b843962b2acc13ccfcee663b 100644 (file)
--- a/core/scf_optimizer_pointer_alias.c
+++ b/core/scf_optimizer_pointer_alias.c
@@ -370,16 +370,19 @@ static int __optimize_alias_bb(scf_list_t** pend, scf_list_t* start, scf_basic_b
                                if (i > 0)
                                        break;
 
-                               pointer    = c->srcs->data[1];
-                               dn_pointer = pointer->dag_node;
+                               if (c->srcs->size > 1) {
 
-                               if (SCF_OP_DEREFERENCE == dn_pointer->type) {
+                                       pointer    = c->srcs->data[1];
+                                       dn_pointer = pointer->dag_node;
 
-                                       ret = __optimize_alias_dereference(pointer, c, bb, bb_list_head);
-                                       if (ret < 0)
-                                               return ret;
+                                       if (SCF_OP_DEREFERENCE == dn_pointer->type) {
 
-                                       flag += ret;
+                                               ret = __optimize_alias_dereference(pointer, c, bb, bb_list_head);
+                                               if (ret < 0)
+                                                       return ret;
+
+                                               flag += ret;
+                                       }
                                }
 
                                pointer        = c->srcs->data[0];