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, 50 insertions, 0 deletions

diff --git a/gcc/testsuite/gnat.dg/sse_nolib.adb b/gcc/testsuite/gnat.dg/sse_nolib.adb
new file mode 100644
index 000000000..a0aa720f0
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/sse_nolib.adb
@@ -0,0 +1,50 @@
+--  { dg-do run { target i?86-*-* x86_64-*-* } }
+--  { dg-options "-O1 -msse" }
+--  { dg-require-effective-target sse_runtime } 
+
+with Ada.Unchecked_Conversion;
+
+procedure SSE_Nolib is
+
+   --  Base vector type definitions
+
+   package SSE_Types is
+      VECTOR_ALIGN : constant := 16;
+      VECTOR_BYTES : constant := 16;
+
+      type m128 is private;
+   private
+      type m128 is array (1 .. 4) of Float;
+      for m128'Alignment use VECTOR_ALIGN;
+      pragma Machine_Attribute (m128, "vector_type");
+      pragma Machine_Attribute (m128, "may_alias");
+   end SSE_Types;
+
+   use SSE_Types;
+
+   --  Core operations
+
+   function mm_add_ss (A, B : m128) return m128;
+   pragma Import (Intrinsic, mm_add_ss, "__builtin_ia32_addss");
+
+   --  User views / conversions or overlays
+
+   type Vf32_View is array (1 .. 4) of Float;
+   for Vf32_View'Alignment use VECTOR_ALIGN;
+
+   function To_m128 is new Ada.Unchecked_Conversion (Vf32_View, m128);
+   function To_m128 is new Ada.Unchecked_Conversion (m128, Vf32_View);
+
+   X, Y, Z : M128;
+
+   Vz : Vf32_View;
+   for Vz'Address use Z'Address;
+begin
+   X := To_m128 ((1.0, 1.0, 2.0, 2.0));
+   Y := To_m128 ((2.0, 2.0, 1.0, 1.0));
+   Z := mm_add_ss (X, Y);
+
+   if Vz /= (3.0, 1.0, 2.0, 2.0) then
+      raise Program_Error;
+   end if;
+end SSE_Nolib;