--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/libgnat/s-geveop.adb	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,133 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
+--                                                                          --
+--      S Y S T E M . G E N E R I C _ V E C T O R _ O P E R A T I O N S     --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 2002-2017, Free Software Foundation, Inc.         --
+--                                                                          --
+-- GNAT is free software;  you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
+--                                                                          --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception,   --
+-- version 3.1, as published by the Free Software Foundation.               --
+--                                                                          --
+-- You should have received a copy of the GNU General Public License and    --
+-- a copy of the GCC Runtime Library Exception along with this program;     --
+-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
+-- <http://www.gnu.org/licenses/>.                                          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with System;                    use System;
+with System.Address_Operations; use System.Address_Operations;
+with System.Storage_Elements;   use System.Storage_Elements;
+
+with Ada.Unchecked_Conversion;
+
+package body System.Generic_Vector_Operations is
+
+   IU : constant Integer := Integer (Storage_Unit);
+   VU : constant Address := Address (Vectors.Vector'Size / IU);
+   EU : constant Address := Address (Element_Array'Component_Size / IU);
+
+   ----------------------
+   -- Binary_Operation --
+   ----------------------
+
+   procedure Binary_Operation
+     (R, X, Y : System.Address;
+      Length  : System.Storage_Elements.Storage_Count)
+   is
+      RA : Address := R;
+      XA : Address := X;
+      YA : Address := Y;
+      --  Address of next element to process in R, X and Y
+
+      VI : constant Integer_Address := To_Integer (VU);
+
+      Unaligned : constant Integer_Address :=
+                    Boolean'Pos (ModA (OrA (OrA (RA, XA), YA), VU) /= 0) - 1;
+      --  Zero iff one or more argument addresses is not aligned, else all 1's
+
+      type Vector_Ptr is access all Vectors.Vector;
+      type Element_Ptr is access all Element;
+
+      function VP is new Ada.Unchecked_Conversion (Address, Vector_Ptr);
+      function EP is new Ada.Unchecked_Conversion (Address, Element_Ptr);
+
+      SA : constant Address :=
+             AddA (XA, To_Address
+                         ((Integer_Address (Length) / VI * VI) and Unaligned));
+      --  First address of argument X to start serial processing
+
+   begin
+      while XA < SA loop
+         VP (RA).all := Vector_Op (VP (XA).all, VP (YA).all);
+         XA := AddA (XA, VU);
+         YA := AddA (YA, VU);
+         RA := AddA (RA, VU);
+      end loop;
+
+      while XA < X + Length loop
+         EP (RA).all := Element_Op (EP (XA).all, EP (YA).all);
+         XA := AddA (XA, EU);
+         YA := AddA (YA, EU);
+         RA := AddA (RA, EU);
+      end loop;
+   end Binary_Operation;
+
+   ----------------------
+   -- Unary_Operation --
+   ----------------------
+
+   procedure Unary_Operation
+     (R, X    : System.Address;
+      Length  : System.Storage_Elements.Storage_Count)
+   is
+      RA : Address := R;
+      XA : Address := X;
+      --  Address of next element to process in R and X
+
+      VI : constant Integer_Address := To_Integer (VU);
+
+      Unaligned : constant Integer_Address :=
+                    Boolean'Pos (ModA (OrA (RA, XA), VU) /= 0) - 1;
+      --  Zero iff one or more argument addresses is not aligned, else all 1's
+
+      type Vector_Ptr is access all Vectors.Vector;
+      type Element_Ptr is access all Element;
+
+      function VP is new Ada.Unchecked_Conversion (Address, Vector_Ptr);
+      function EP is new Ada.Unchecked_Conversion (Address, Element_Ptr);
+
+      SA : constant Address :=
+             AddA (XA, To_Address
+                         ((Integer_Address (Length) / VI * VI) and Unaligned));
+      --  First address of argument X to start serial processing
+
+   begin
+      while XA < SA loop
+         VP (RA).all := Vector_Op (VP (XA).all);
+         XA := AddA (XA, VU);
+         RA := AddA (RA, VU);
+      end loop;
+
+      while XA < X + Length loop
+         EP (RA).all := Element_Op (EP (XA).all);
+         XA := AddA (XA, EU);
+         RA := AddA (RA, EU);
+      end loop;
+   end Unary_Operation;
+
+end System.Generic_Vector_Operations;