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authorRong Xu <xur@google.com>2014-09-02 15:29:57 -0700
committerRong Xu <xur@google.com>2014-09-02 15:29:57 -0700
commite97c99f15937e5762a973b25192aab824126a6d3 (patch)
tree7f0be3ff7c7d976af06887dc50accd68f7630a7f /gcc-4.9/gcc/testsuite/gcc.c-torture/execute/bitfld-6.c
parentf1c18afafc2b321465ae6b07ede127095942d7dc (diff)
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[gcc-4.9] Merge svn r214745 from google/gcc-4_9 branch.
Merge gcc-4_9 source r214745 from google/gcc-4_9 branch. Change-Id: Ie6fa0fd72f4b4eec3adc4db4bb922e652d1c2605
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.c-torture/execute/bitfld-6.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.c-torture/execute/bitfld-6.c23
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;
+}