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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/pr48335-8.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/pr48335-8.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/pr48335-8.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/pr48335-8.c b/gcc-4.9/gcc/testsuite/gcc.dg/pr48335-8.c
new file mode 100644
index 000000000..bb06c157f
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/pr48335-8.c
@@ -0,0 +1,31 @@
+/* PR middle-end/48335 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fno-tree-sra" } */
+
+typedef short U __attribute__((may_alias, aligned (1)));
+
+struct S
+{
+ double d;
+};
+
+int
+f1 (struct S x)
+{
+ struct S s = x;
+ return ((U *)((char *) &s.d + 1))[-1];
+}
+
+int
+f2 (struct S x)
+{
+ struct S s = x;
+ return ((U *)((char *) &s.d + 1))[-2];
+}
+
+int
+f3 (struct S x)
+{
+ struct S s = x;
+ return ((U *)((char *) &s.d + 1))[5];
+}