Merge tree-ssa-20020619-branch into mainline.

From-SVN: r81764

1 files changed, 54 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-9.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-9.c
new file mode 100644
index 00000000000..4656558814e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-9.c
@@ -0,0 +1,54 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-ccp" } */
+
+/* Check that cprop works for assignments to array elements and structs.  */
+
+struct foo {
+  int a;
+};
+
+extern void link_error (void);
+
+void
+test9 (struct foo f)
+{
+  f.a = 0;
+  if (f.a != 0)
+    link_error ();
+}
+
+void
+test99 (struct foo *f)
+{
+  f->a = 0;
+  if (f->a != 0)
+    link_error ();
+}
+
+void
+test999 (int *arr)
+{
+  *arr = 0;
+  if (*arr != 0)
+    link_error ();
+}
+
+void
+test9999 (int *arr)
+{
+  arr[13] = 0;
+  if (arr[13] != 0)
+    link_error ();
+}
+
+void
+test99999 (int *arr, int j)
+{
+  arr[j] = 0;
+  if (arr[j] != 0)
+    link_error ();
+}
+
+/* There should be no link_error calls, if there is any, the
+   optimization has failed */
+/* { dg-final { scan-tree-dump-times "link_error" 0 "ccp"} } */