Merge in trunk.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/wide-int@205966 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 40 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pr56341-2.c b/gcc/testsuite/gcc.dg/pr56341-2.c
new file mode 100644
index 00000000000..e6f6569f089
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr56341-2.c
@@ -0,0 +1,40 @@
+/* { dg-do run } */
+/* { dg-options "-fno-strict-volatile-bitfields" } */
+
+extern void abort (void);
+
+struct test0
+{
+  unsigned char b1[2];
+} __attribute__((packed, aligned(2)));
+
+struct test1
+{
+  volatile unsigned long a1;
+  unsigned char b1[4];
+} __attribute__((packed, aligned(2)));
+
+struct test2
+{
+  struct test0 t0;
+  struct test1 t1;
+  struct test0 t2;
+} __attribute__((packed, aligned(2)));
+
+struct test2 xx;
+struct test2 *x1 = &xx;
+
+#define MAGIC 0x12345678
+
+void test0 (struct test2* x1)
+{
+  x1->t1.a1 = MAGIC;
+}
+
+int main()
+{
+  test0 (x1);
+  if (xx.t1.a1 != MAGIC)
+    abort ();
+  return 0;
+}