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path: root/validation/packed-bitfield1.c
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Diffstat (limited to 'validation/packed-bitfield1.c')
-rw-r--r--validation/packed-bitfield1.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/validation/packed-bitfield1.c b/validation/packed-bitfield1.c
new file mode 100644
index 00000000..208a3dc5
--- /dev/null
+++ b/validation/packed-bitfield1.c
@@ -0,0 +1,28 @@
+#define __packed __attribute__((packed))
+
+struct s {
+ unsigned int f0:1;
+ unsigned int f1:1;
+ unsigned int pad:6;
+} __packed;
+_Static_assert(sizeof(struct s) == 1, "sizeof(struct s)");
+
+extern struct s g;
+
+static int foo(struct s *ptr)
+{
+ int f = 0;
+
+ f += g.f0;
+ f += g.f1;
+
+ f += ptr->f0;
+ f += ptr->f1;
+
+ return f;
+}
+
+/*
+ * check-name: packed-bitfield1
+ * check-known-to-fail
+ */