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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/pr56341-1.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/pr56341-1.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/pr56341-1.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/pr56341-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/pr56341-1.c
new file mode 100644
index 000000000..91cf80ba2
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/pr56341-1.c
@@ -0,0 +1,40 @@
+/* { dg-do run } */
+/* { dg-options "-fstrict-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;
+}