bounds-2.c (fn4): Adjust to check the array size in the structure.

	* c-c++-common/ubsan/bounds-2.c (fn4): Adjust to check the array size
	in the structure.

From-SVN: r212933

gcc/testsuite/ChangeLog

+2014-07-23  Marek Polacek  <polacek@redhat.com>
+
+	* c-c++-common/ubsan/bounds-2.c (fn4): Adjust to check the array size
+	in the structure. 
+
 2014-07-23  Jiong Wang  <jiong.wang@arm.com>
 
 	* gcc.dg/ira-shrinkwrap-prep-1.c (target): Add arm_nothumb.

gcc/testsuite/c-c++-common/ubsan/bounds-2.c

@@ -4,6 +4,7 @@
 /* Test runtime errors.  */
 
 struct S { int a[10]; };
+struct T { int a[5]; int s[2]; };
 
 int
 foo_5 (void)
@@ -47,8 +48,9 @@ fn3 (void)
 static void __attribute__ ((noinline, noclone))
 fn4 (void)
 {
-  volatile int a[5];
-  a[foo_5 ()] = 1;
+  struct T t;
+  asm ("" : : "r" (&t.a) : "memory");
+  t.a[foo_5 ()] = 1;
 }
 
 static void __attribute__ ((noinline, noclone))