Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 42 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr33172.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr33172.c
new file mode 100644
index 000000000..17a40d4a3
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr33172.c
@@ -0,0 +1,42 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+
+struct abc {
+    void (*abc_call)(void);
+};
+
+/*
+ * Use only any one of the three definitions below at a time:
+ *
+ * 1. nothing optimized away. Good.
+ * 2. call_func() _not_ optimized away, but struct xyz is. gcc disappoints.
+ * 3. both call_func() and struct xyz optimized away. Nice.
+ */
+
+/* 1 */
+/*extern int do_register(struct abc *xyz);*/
+
+/* 2 */
+static inline int do_register(struct abc *xyz)
+{
+    return 0;
+}
+
+/* 3 */
+/*#define do_register(xyz)    do { (void)(xyz); } while (0)*/
+
+static void call_func(void)
+{
+}
+
+static struct abc xyz = {
+    .abc_call = call_func,
+};
+
+void func(void)
+{
+    do_register(&xyz);
+}
+
+/* { dg-final { scan-tree-dump-not "call_func" "optimized"} } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */