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diff --git a/gcc/testsuite/ada/acats/tests/cxb/cxb2003.a b/gcc/testsuite/ada/acats/tests/cxb/cxb2003.a
new file mode 100644
index 000000000..ec3998ad8
--- /dev/null
+++ b/gcc/testsuite/ada/acats/tests/cxb/cxb2003.a
@@ -0,0 +1,255 @@
+-- CXB2003.A
+--
+--                             Grant of Unlimited Rights
+--
+--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
+--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 
+--     unlimited rights in the software and documentation contained herein.
+--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 
+--     this public release, the Government intends to confer upon all 
+--     recipients unlimited rights  equal to those held by the Government.  
+--     These rights include rights to use, duplicate, release or disclose the 
+--     released technical data and computer software in whole or in part, in 
+--     any manner and for any purpose whatsoever, and to have or permit others 
+--     to do so.
+--
+--                                    DISCLAIMER
+--
+--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
+--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 
+--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
+--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 
+--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
+--     PARTICULAR PURPOSE OF SAID MATERIAL.
+--*
+--
+-- OBJECTIVE:
+--      Check that subprograms Shift_Left, Shift_Right, 
+--      Shift_Right_Arithmetic, Rotate_Left, and Rotate_Right are available
+--      and produce correct results for values of signed and modular
+--      integer types of 32 bits.  
+--
+-- TEST DESCRIPTION:
+--      This test uses the shift and rotate functions of package Interfaces
+--      with a modular type representative of 32 bits.  The functions
+--      are used as the right hand of assignment statements, as part of
+--      conditional statements, and as arguments in other function calls.
+--
+-- APPLICABILITY CRITERIA: 
+--      This test is applicable to all implementations that support signed
+--      and modular integer types of 32 bits.
+--
+--       
+-- CHANGE HISTORY:
+--      23 Aug 95   SAIC    Initial prerelease version.
+--      07 May 96   SAIC    Incorporated reviewer comments for ACVC 2.1.
+--      26 Oct 96   SAIC    Removed all references to Big/Little endian.
+--
+--!
+
+with Report;
+with Interfaces;
+with Ada.Exceptions;
+
+procedure CXB2003 is
+begin
+
+   Report.Test ("CXB2003", 
+                "Check that subprograms Shift_Left, Shift_Right, "       &
+                "Shift_Right_Arithmetic, Rotate_Left, and Rotate_Right " &
+                "are available and produce correct results");
+
+   Test_Block:
+   declare
+
+      use Interfaces;
+      use Ada.Exceptions;
+
+      TC_Amount   : Natural  := Natural'First;
+
+      -- Range of type Unsigned_32 is 0..(2**32)-1    (0..Modulus-1).
+      TC_Val_Unsigned_32,
+      TC_Result_Unsigned_32 : Unsigned_32 := Unsigned_32'First;
+
+   begin
+
+      -- Note: The shifting and rotating subprograms operate on a bit-by-bit
+      --       basis, using the binary representation of the value of the 
+      --       operands to yield a binary representation for the result.
+
+
+      -- Function Shift_Left.
+
+         TC_Amount             := 2;
+         TC_Val_Unsigned_32    := Unsigned_32'Last; 
+         TC_Result_Unsigned_32 := Shift_Left(TC_Val_Unsigned_32, TC_Amount);
+
+         if TC_Result_Unsigned_32 /= Unsigned_32'Last - (2**0 + 2**1) then
+            Report.Failed("Incorrect result from Shift_Left - 1");
+         end if;
+
+         TC_Result_Unsigned_32 := Unsigned_32'Last - (2**0 + 2**1 + 2**2 +
+                                                      2**3 + 2**4);
+         if Shift_Left(TC_Val_Unsigned_32,  5) /= TC_Result_Unsigned_32  or
+            Shift_Left(TC_Val_Unsigned_32,  0) /= Unsigned_32'Last       
+         then
+            Report.Failed("Incorrect result from Shift_Left - 2");
+         end if;
+
+
+      -- Function Shift_Right.
+
+         TC_Amount             := 3;
+         TC_Val_Unsigned_32    := Unsigned_32'Last;  
+         TC_Result_Unsigned_32 := Shift_Right(Value  => TC_Val_Unsigned_32, 
+                                              Amount => TC_Amount);
+         if TC_Result_Unsigned_32 /= 
+            Unsigned_32'Last - (2**31 + 2**30 + 2**29) 
+         then
+            Report.Failed("Incorrect result from Shift_Right - 1");
+         end if;
+
+         if Shift_Right(TC_Val_Unsigned_32,  0) /= Unsigned_32'Last    or
+            Shift_Right(TC_Val_Unsigned_32,  2) /= Unsigned_32'Last - 
+                                                   (2**31 + 2**30)     
+         then
+            Report.Failed("Incorrect result from Shift_Right - 2");
+         end if;
+
+
+      -- Tests of Shift_Left and Shift_Right in combination.
+
+         TC_Val_Unsigned_32 := Unsigned_32'Last;
+
+         if Shift_Left(Shift_Right(TC_Val_Unsigned_32, 4),  4) /=
+            Unsigned_32'Last - (2**0 + 2**1 + 2**2 + 2**3)          or
+            Shift_Left(Shift_Right(TC_Val_Unsigned_32, 3),  1) /=
+            Unsigned_32'Last - (2**31 + 2**30 + 2**0)               or
+            Shift_Left(Shift_Right(TC_Val_Unsigned_32, 5),  3) /=
+            Unsigned_32'Last - (2**31 + 2**30 + 2**2 + 2**1 + 2**0) or
+            Shift_Right(Shift_Left(TC_Val_Unsigned_32, 2),  1) /=
+            Unsigned_32'Last - (2**31 + 2**0)                       
+         then
+            Report.Failed("Incorrect result from Shift_Left - " &
+                          "Shift_Right functions used in combination");
+         end if;
+
+
+      -- Function Shift_Right_Arithmetic.
+
+         -- Case where the parameter Value is less than 
+         -- one half of the modulus.  Zero bits will be shifted in.
+
+         TC_Amount             := 3;
+         TC_Val_Unsigned_32    := 2**15 + 2**10 + 2**1;
+         TC_Result_Unsigned_32 := Shift_Right_Arithmetic(TC_Val_Unsigned_32,
+                                                         TC_Amount);
+         if TC_Result_Unsigned_32 /= (2**12 + 2**7) then
+            Report.Failed
+              ("Incorrect result from Shift_Right_Arithmetic - 1");
+         end if;
+
+         if Shift_Right_Arithmetic(TC_Val_Unsigned_32, 0)  /= 
+            TC_Val_Unsigned_32                                  or
+            Shift_Right_Arithmetic(TC_Val_Unsigned_32, 5)  /= 
+            (2**10 + 2**5)                                      
+         then
+            Report.Failed
+              ("Incorrect result from Shift_Right_Arithmetic - 2");
+         end if;
+
+         -- Case where the parameter Value is greater than or equal to
+         -- one half of the modulus.  One bits will be shifted in.
+
+         TC_Amount             := 1;
+         TC_Val_Unsigned_32    := 2**31; -- One half of modulus
+         TC_Result_Unsigned_32 := Shift_Right_Arithmetic(TC_Val_Unsigned_32,
+                                                         TC_Amount);
+         if TC_Result_Unsigned_32 /= (2**31 + 2**30) then
+            Report.Failed
+              ("Incorrect result from Shift_Right_Arithmetic - 3");
+         end if;
+
+         TC_Amount             := 1;
+         TC_Val_Unsigned_32    := (2**31 + 2**1);
+         TC_Result_Unsigned_32 := Shift_Right_Arithmetic(TC_Val_Unsigned_32,
+                                                         TC_Amount);
+         if TC_Result_Unsigned_32 /= (2**31 + 2**30 + 2**0) then
+            Report.Failed
+              ("Incorrect result from Shift_Right_Arithmetic - 4");
+         end if;
+
+         if Shift_Right_Arithmetic(TC_Val_Unsigned_32, 0)  /= 
+            TC_Val_Unsigned_32                                or
+            Shift_Right_Arithmetic(TC_Val_Unsigned_32, 3)  /= 
+            (2**31 + 2**30 + 2**29 + 2**28)                   
+         then
+            Report.Failed
+              ("Incorrect result from Shift_Right_Arithmetic - 5");
+         end if;
+
+
+      -- Function Rotate_Left.
+
+         TC_Amount             := 3;
+         TC_Val_Unsigned_32    := Unsigned_32'Last; 
+         TC_Result_Unsigned_32 := Rotate_Left(Value  => TC_Val_Unsigned_32, 
+                                              Amount => TC_Amount);
+         if TC_Result_Unsigned_32 /= Unsigned_32'Last then
+            Report.Failed("Incorrect result from Rotate_Left - 1");
+         end if;
+
+         TC_Val_Unsigned_32    := 2**31 + 2**30;
+         if Rotate_Left(TC_Val_Unsigned_32,  1) /= (2**31 + 2**0)  or
+            Rotate_Left(TC_Val_Unsigned_32,  5) /= (2**4  + 2**3)  or
+            Rotate_Left(TC_Val_Unsigned_32, 32) /= TC_Val_Unsigned_32  
+         then
+            Report.Failed("Incorrect result from Rotate_Left - 2");
+         end if;
+
+
+      -- Function Rotate_Right.
+
+         TC_Amount             := 2;
+         TC_Val_Unsigned_32    := (2**1 + 2**0);
+         TC_Result_Unsigned_32 := Rotate_Right(Value  => TC_Val_Unsigned_32, 
+                                               Amount => TC_Amount);
+         if TC_Result_Unsigned_32 /= (2**31 + 2**30) then
+            Report.Failed("Incorrect result from Rotate_Right - 1");
+         end if;
+
+         if Rotate_Right(TC_Val_Unsigned_32,  3) /=  (2**30 + 2**29)  or
+            Rotate_Right(TC_Val_Unsigned_32,  6) /=  (2**27 + 2**26)  or
+            Rotate_Right(TC_Val_Unsigned_32, 32) /=  (2**1  + 2**0) 
+         then
+            Report.Failed("Incorrect result from Rotate_Right - 2");
+         end if;
+
+
+      -- Tests of Rotate_Left and Rotate_Right in combination.
+
+         TC_Val_Unsigned_32 := (2**31 + 2**15 + 2**3);
+
+         if Rotate_Left(Rotate_Right(TC_Val_Unsigned_32, 4),  3) /= 
+            (2**30 + 2**14 + 2**2)                                   or
+            Rotate_Left(Rotate_Right(TC_Val_Unsigned_32, 1),  3) /= 
+            (2**17 + 2**5  + 2**1)                                   or
+            Rotate_Right(Rotate_Left(TC_Val_Unsigned_32, 3),  7) /= 
+            (2**31 + 2**27 + 2**11)                                  or
+            Rotate_Right(Rotate_Left(TC_Val_Unsigned_32, 1), 32) /= 
+            (2**16 + 2**4  + 2**0)
+         then
+            Report.Failed("Incorrect result from Rotate_Left - " &
+                          "Rotate_Right functions used in combination");
+         end if;
+
+
+   exception
+      when The_Error : others => 
+         Report.Failed ("The following exception was raised in the " &
+                        "Test_Block: " & Exception_Name(The_Error));
+   end Test_Block;
+
+   Report.Result;
+
+end CXB2003;