2012-05-22 Richard Guenther <rguenther@suse.de>

	PR middle-end/51071
	* gcc.dg/torture/pr51071-2.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_7-branch@187765 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 0a8e684..05aec61 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2012-05-22  Richard Guenther  <rguenther@suse.de>
+
+       PR middle-end/51071
+       * gcc.dg/torture/pr51071-2.c: New testcase.
+

 2012-05-21  Jakub Jelinek  <jakub@redhat.com>
 
        PR tree-optimization/53366
 2012-05-21  Jakub Jelinek  <jakub@redhat.com>
 
        PR tree-optimization/53366

diff --git a/gcc/testsuite/gcc.dg/torture/pr51071-2.c b/gcc/testsuite/gcc.dg/torture/pr51071-2.c
new file mode 100644 (file)
index 0000000..f66a89f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr51071-2.c
@@ -0,0 +1,38 @@
+/* { dg-do compile } */
+/* { dg-options "-fno-delete-null-pointer-checks" } */
+
+extern struct module __this_module;
+static inline void
+trace_module_get  (struct module *mod, unsigned long ip) { }
+struct module;
+static inline __attribute__((no_instrument_function))
+int try_module_get(struct module *module)
+{
+  int ret = 1;
+  if (module)
+    {
+      if (module_is_live(module))
+       {
+         __label__ __here;
+         asm("");
+         __here:
+         trace_module_get(module, (unsigned long)&&__here);
+       }
+      else
+       ret = 0;
+    }
+  return ret;
+}
+struct net_device;
+struct net_device_ops {
+    int (*ndo_open)(struct net_device *dev);
+};
+int t3e3_open(struct net_device *dev)
+{
+  int ret = hdlc_open(dev);
+  if (ret)
+    return ret;
+  try_module_get((&__this_module));
+  return 0;
+}
+const struct net_device_ops t3e3_ops = { .ndo_open = t3e3_open };