@@ -879,16 +879,19 @@ callgraph_superedge::get_arg_for_parm (tree parm_to_find,
gcc_assert (TREE_CODE (parm_to_find) == PARM_DECL);
tree callee = get_callee_decl ();
+ const gcall *call_stmt = get_call_stmt ();
- int i = 0;
+ unsigned i = 0;
for (tree iter_parm = DECL_ARGUMENTS (callee); iter_parm;
iter_parm = DECL_CHAIN (iter_parm), ++i)
{
+ if (i >= gimple_call_num_args (call_stmt))
+ return NULL_TREE;
if (iter_parm == parm_to_find)
{
if (out)
*out = callsite_expr::from_zero_based_param (i);
- return gimple_call_arg (get_call_stmt (), i);
+ return gimple_call_arg (call_stmt, i);
}
}
@@ -906,12 +909,15 @@ callgraph_superedge::get_parm_for_arg (tree arg_to_find,
callsite_expr *out) const
{
tree callee = get_callee_decl ();
+ const gcall *call_stmt = get_call_stmt ();
- int i = 0;
+ unsigned i = 0;
for (tree iter_parm = DECL_ARGUMENTS (callee); iter_parm;
iter_parm = DECL_CHAIN (iter_parm), ++i)
{
- tree param = gimple_call_arg (get_call_stmt (), i);
+ if (i >= gimple_call_num_args (call_stmt))
+ return NULL_TREE;
+ tree param = gimple_call_arg (call_stmt, i);
if (arg_to_find == param)
{
if (out)
new file mode 100644
@@ -0,0 +1,15 @@
+/* { dg-additional-options "-Wno-implicit-int" } */
+
+void
+en (jm)
+{
+}
+
+void
+p2 ()
+{
+ char *rl = 0;
+
+ en ();
+ __builtin_memcpy (rl, 0, sizeof (0)); /* { dg-warning "dereference of NULL" } */
+}