Merge tree-ssa-20020619-branch into mainline.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@81764 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 40 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20030814-4.c b/gcc/testsuite/gcc.dg/tree-ssa/20030814-4.c
new file mode 100644
index 00000000000..81711dd75cd
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20030814-4.c
@@ -0,0 +1,40 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-dom3 -fdump-tree-optimized" } */
+    
+union tree_node;
+typedef union tree_node *tree;
+extern const char tree_code_type[];
+struct tree_common
+{
+  int code;
+};
+struct tree_decl 
+{
+  long pointer_alias_set;
+};
+union tree_node
+{
+  struct tree_common common;
+  struct tree_decl decl;
+};
+long
+blah (decl, set)
+     tree decl;
+     long set;
+{
+  decl->decl.pointer_alias_set = set;
+  if (tree_code_type[decl->common.code] != 'd')
+    abort ();
+  record_alias_subset (decl->decl.pointer_alias_set);
+  if (set != -1)
+    set = 0; 
+  return set;
+}
+
+/* There should be precisely one reference to pointer_alias_set.  If there is
+   more than one, then the dominator optimizations failed.  */
+/* { dg-final { scan-tree-dump-times "pointer_alias_set" 1 "dom3"} } */
+
+/* The assignment set = -1 in the ELSE clause of the last IF
+   statement should be removed by the final cleanup phase.  */
+/* { dg-final { scan-tree-dump-times "set = -1" 0 "optimized"} } */