Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 49 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20030728-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20030728-1.c
new file mode 100644
index 000000000..93a7979c5
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20030728-1.c
@@ -0,0 +1,49 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-rtl-expand-details" } */
+    
+
+union tree_node;
+typedef union tree_node *tree;
+
+enum tree_code
+{
+  ARRAY_TYPE,
+  LAST_AND_UNUSED_TREE_CODE
+};
+
+struct tree_common
+{
+  enum tree_code code:8;
+};
+
+
+
+
+
+union tree_node
+{
+  struct tree_common common;
+};
+
+
+
+
+int
+objects_must_conflict_p (t1, t2)
+     tree t1, t2;
+{
+
+  if ((t1->common.code == ARRAY_TYPE) != (t2
+                                          && t2->common.code == ARRAY_TYPE))
+    return 11;
+
+
+  return foo (t2 ? get_alias_set (t2) : 0);
+}
+
+/* There should be one assignment of variables to the value zero.  There
+   used to be two assignments, but improvements in threading allowed the
+   second to be propagated into all its uses and eliminated.   */
+/* { dg-final { scan-rtl-dump-times "PART.. = 0" 1 "expand"} } */
+ 
+/* { dg-final { cleanup-rtl-dump "expand" } } */