1 files changed, 23 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/bitfld-6.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/bitfld-6.c
new file mode 100644
index 000000000..50927dc1d
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/bitfld-6.c
@@ -0,0 +1,23 @@
+union U
+{
+  const int a;
+  unsigned b : 20;
+};
+
+static union U u = { 0x12345678 };
+
+/* Constant folding used to fail to account for endianness when folding a
+   union.  */
+
+int
+main (void)
+{
+#ifdef __BYTE_ORDER__
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+  return u.b - 0x45678;
+#else
+  return u.b - 0x12345;
+#endif
+#endif
+  return 0;
+}