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--  { dg-do run { target i?86-*-* x86_64-*-* } }

--  { dg-options "-O1 -msse" }

--  { dg-require-effective-target sse } 

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;