obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 35 insertions, 0 deletions

diff --git a/gcc/testsuite/gnat.dg/loop_optimization1.ads b/gcc/testsuite/gnat.dg/loop_optimization1.ads
new file mode 100644
index 000000000..2c3f419b5
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/loop_optimization1.ads
@@ -0,0 +1,35 @@
+package Loop_Optimization1 is
+
+   type Number is range 0 .. 127;
+
+   type Group_List is array (Positive range <>) of Number;
+
+   subtype Index is Natural range 1 .. 5;
+
+   function Groups (T : Integer) return Group_List;
+   pragma Import (Ada, Groups);
+ 
+   type Group_Chain (Length : Index := 1) is record
+      Groups : Group_List(1 .. Length);
+   end record;
+
+   type Group_Chain_List is array (Positive range <>) of Group_Chain;
+
+   function Group_Chains (T : Integer) return Group_Chain_List;
+   pragma Import (Ada, Group_Chains);
+
+   type R (I : Boolean) is null record;
+ 
+   type R_Access is access R;
+
+   type R_List is array (Positive range <>) of R_Access;
+
+   type R_List_Access is access R_List;
+
+   type D is record
+      L : R_List_Access;
+   end record;
+
+   procedure Create (A : in out D; Val : Integer);
+
+end Loop_Optimization1;