From 301356e89ba5b90194c04d18e27537b630a562fd Mon Sep 17 00:00:00 2001
From: "yu.dongliang" <maja_creater@qq.com>
Date: Thu, 20 Oct 2022 16:20:41 +0800
Subject: [PATCH] fix: core dump when '(*p)++'
---
core/scf_optimizer_pointer_alias.c | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
diff --git a/core/scf_optimizer_pointer_alias.c b/core/scf_optimizer_pointer_alias.c
index 583cdb1..13dd2c4 100644
--- 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];
--
2.25.1