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
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 35 insertions, 0 deletions

diff --git a/gcc/testsuite/gnat.dg/tail_call_p.adb b/gcc/testsuite/gnat.dg/tail_call_p.adb
new file mode 100644
index 000000000..56add5f6b
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/tail_call_p.adb
@@ -0,0 +1,35 @@
+package body Tail_Call_P is
+
+  function Start_Side (Element : T) return Index is
+  begin
+    if Element = 1 then
+      raise Program_Error;
+    end if;
+    if Element = 0 then
+      return Second;
+    else
+      return First;
+    end if;
+  end;
+
+  function Segment (Element : T) return T is
+  begin
+    if Element /= 0 then
+      raise Program_Error;
+    end if;
+    return 1;
+  end;
+
+  procedure Really_Insert (Into : T; Element : T; Value : T) is
+  begin
+    if Into /= 0 then
+      raise Program_Error;
+    end if;
+  end;
+
+  procedure Insert (Into : A; Element : T; Value : T) is
+  begin
+    Really_Insert (Into (Start_Side (Element)), Segment (Element), Value);
+  end Insert;
+
+end Tail_Call_P;