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diff --git a/gcc/testsuite/ada/acats/tests/cxg/cxg2002.a b/gcc/testsuite/ada/acats/tests/cxg/cxg2002.a
new file mode 100644
index 000000000..6a1f322e8
--- /dev/null
+++ b/gcc/testsuite/ada/acats/tests/cxg/cxg2002.a
@@ -0,0 +1,468 @@
+-- CXG2002.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 the complex "abs" or modulus function returns
+--      results that are within the error bound allowed.
+--
+-- TEST DESCRIPTION:
+--      This test uses a generic package to compute and check the
+--      values of the modulus function.  In addition, a non-generic
+--      copy of this package is used to check the non-generic package
+--      Ada.Numerics.Complex_Types.
+--      Of special interest is the case where either the real or
+--      the imaginary part of the argument is very large while the
+--      other part is very small or 0. 
+--      We want to check that the value is computed such that
+--      an overflow does not occur.  If computed directly from the
+--      definition 
+--        abs (x+yi) = sqrt(x**2 + y**2)
+--      then overflow or underflow is much more likely than if the
+--      argument is normalized first.
+--
+-- SPECIAL REQUIREMENTS
+--      The Strict Mode for the numerical accuracy must be
+--      selected.  The method by which this mode is selected
+--      is implementation dependent.
+--
+-- APPLICABILITY CRITERIA:
+--      This test applies only to implementations supporting the
+--      Numerics Annex.
+--      This test only applies to the Strict Mode for numerical
+--      accuracy.
+--
+--
+-- CHANGE HISTORY:
+--      31 JAN 96   SAIC    Initial release for 2.1
+--      02 JUN 98   EDS     Add parens to intermediate calculations.
+--!
+
+--
+-- Reference:
+-- Problems and Methodologies in Mathematical Software Production;
+-- editors: P. C. Messina and A Murli;
+-- Lecture Notes in Computer Science
+-- Volume 142
+-- Springer Verlag 1982
+--
+
+with System;
+with Report;
+with Ada.Numerics.Generic_Complex_Types;
+with Ada.Numerics.Complex_Types;
+procedure CXG2002 is
+   Verbose : constant Boolean := False;
+   Maximum_Relative_Error : constant := 3.0;
+
+   generic
+      type Real is digits <>;
+   package Generic_Check is
+      procedure Do_Test;
+   end Generic_Check;
+
+   package body Generic_Check is
+      package Complex_Types is new 
+           Ada.Numerics.Generic_Complex_Types (Real);
+      use Complex_Types;
+
+      procedure Check (Actual, Expected : Real;
+                       Test_Name : String;
+                       MRE : Real := Maximum_Relative_Error) is
+         Rel_Error,
+         Abs_Error,
+         Max_Error : Real;
+      begin
+         -- In the case where the expected result is very small or 0
+         -- we compute the maximum error as a multiple of Model_Epsilon instead
+         -- of Model_Epsilon and Expected.
+         Rel_Error := MRE * (abs Expected * Real'Model_Epsilon);
+         Abs_Error := MRE * Real'Model_Epsilon;
+         if Rel_Error > Abs_Error then
+            Max_Error := Rel_Error;
+         else
+            Max_Error := Abs_Error;
+         end if; 
+
+         if abs (Actual - Expected) > Max_Error then
+            Report.Failed (Test_Name & 
+                           " actual: " & Real'Image (Actual) &
+                           " expected: " & Real'Image (Expected) &
+                           " difference: " & 
+                           Real'Image (Expected - Actual) &
+                           " max_err:" & Real'Image (Max_Error) );
+         elsif Verbose then
+	    if Actual = Expected then
+	       Report.Comment (Test_Name & "  exact result");
+	    else
+	       Report.Comment (Test_Name & "  passed");
+	    end if;
+         end if;
+      end Check;
+
+
+      procedure Do_Test is
+         Z : Complex;
+         X : Real;
+         T : Real;
+      begin
+
+         --- test 1 ---
+         begin
+            T := Real'Safe_Last;
+            Z := T + 0.0*i;
+            X := abs Z;
+            Check (X, T, "test 1 -- abs(bigreal + 0i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 1");
+            when others =>
+               Report.Failed ("exception in test 1");
+         end;
+
+	 --- test 2 ---
+         begin
+            T := Real'Safe_Last;
+	    Z := 0.0 + T*i;
+	    X := Modulus (Z);
+            Check (X, T, "test 2 -- abs(0 + bigreal*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 2");
+            when others =>
+               Report.Failed ("exception in test 2");
+         end;
+
+	 --- test 3 ---
+         begin
+	    Z := 3.0 + 4.0*i;
+	    X := abs Z;
+            Check (X, 5.0 , "test 3 -- abs(3 + 4*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 3");
+            when others =>
+               Report.Failed ("exception in test 3");
+         end;
+
+	 --- test 4 ---
+         declare
+            S : Real;
+         begin
+            S := Real(Real'Machine_Radix) ** (Real'Machine_EMax - 3);
+	    Z := 3.0 * S + 4.0*S*i;
+	    X := abs Z;
+            Check (X, 5.0*S, "test 4 -- abs(3S + 4S*i) for large S", 
+                   5.0*Real'Model_Epsilon);
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 4");
+            when others =>
+               Report.Failed ("exception in test 4");
+         end;
+
+	 --- test 5 --- 
+         begin
+            T := Real'Model_Small;
+	    Z := T + 0.0*i;
+	    X := abs Z;
+            Check (X, T , "test 5 -- abs(small + 0*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 5");
+            when others =>
+               Report.Failed ("exception in test 5");
+         end;
+
+	 --- test 6 ---
+         begin
+            T := Real'Model_Small;
+	    Z := 0.0 + T*i;
+	    X := abs Z;
+            Check (X, T , "test 6 -- abs(0 + small*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 6");
+            when others =>
+               Report.Failed ("exception in test 6");
+         end;
+
+	 --- test 7 ---
+         declare
+            S : Real;
+         begin
+            S := Real(Real'Machine_Radix) ** (Real'Model_EMin + 3);
+	    Z := 3.0 * S + 4.0*S*i;
+	    X := abs Z;
+            Check (X, 5.0*S, "test 7 -- abs(3S + 4S*i) for small S", 
+                   5.0*Real'Model_Epsilon);
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 7");
+            when others =>
+               Report.Failed ("exception in test 7");
+         end;
+
+	 --- test 8 ---
+         declare
+            -- CRC Standard Mathematical Tables;  23rd Edition; pg 738
+            Sqrt2 : constant := 
+              1.41421_35623_73095_04880_16887_24209_69807_85696_71875_37695;
+         begin
+	    Z := 1.0 + 1.0*i;
+	    X := abs Z;
+            Check (X, Sqrt2 , "test 8 -- abs(1 + 1*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 8");
+            when others =>
+               Report.Failed ("exception in test 8");
+         end;
+
+	 --- test 9 --- 
+         begin
+            T := 0.0;
+	    Z := T + 0.0*i;
+	    X := abs Z;
+            Check (X, T , "test 5 -- abs(0 + 0*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 9");
+            when others =>
+               Report.Failed ("exception in test 9");
+         end;
+      end Do_Test;
+   end Generic_Check;
+
+   -----------------------------------------------------------------------
+   --- non generic copy of the above generic package
+   -----------------------------------------------------------------------
+
+   package Non_Generic_Check is
+      subtype Real is Float;
+      procedure Do_Test;
+   end Non_Generic_Check;
+
+   package body Non_Generic_Check is
+      use Ada.Numerics.Complex_Types;
+
+      procedure Check (Actual, Expected : Real;
+                       Test_Name : String;
+                       MRE : Real := Maximum_Relative_Error) is
+         Rel_Error,
+         Abs_Error,
+         Max_Error : Real;
+      begin
+         -- In the case where the expected result is very small or 0
+         -- we compute the maximum error as a multiple of Model_Epsilon instead
+         -- of Model_Epsilon and Expected.
+         Rel_Error := MRE * (abs Expected * Real'Model_Epsilon);
+         Abs_Error := MRE * Real'Model_Epsilon;
+         if Rel_Error > Abs_Error then
+            Max_Error := Rel_Error;
+         else
+            Max_Error := Abs_Error;
+         end if; 
+
+         if abs (Actual - Expected) > Max_Error then
+            Report.Failed (Test_Name & 
+                           " actual: " & Real'Image (Actual) &
+                           " expected: " & Real'Image (Expected) &
+                           " difference: " & 
+                           Real'Image (Expected - Actual) &
+                           " max_err:" & Real'Image (Max_Error) );
+         elsif Verbose then
+	    if Actual = Expected then
+	       Report.Comment (Test_Name & "  exact result");
+	    else
+	       Report.Comment (Test_Name & "  passed");
+	    end if;
+         end if;
+      end Check;
+
+
+      procedure Do_Test is
+         Z : Complex;
+         X : Real;
+         T : Real;
+      begin
+
+         --- test 1 ---
+         begin
+            T := Real'Safe_Last;
+            Z := T + 0.0*i;
+            X := abs Z;
+            Check (X, T, "test 1 -- abs(bigreal + 0i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 1");
+            when others =>
+               Report.Failed ("exception in test 1");
+         end;
+
+	 --- test 2 ---
+         begin
+            T := Real'Safe_Last;
+	    Z := 0.0 + T*i;
+	    X := Modulus (Z);
+            Check (X, T, "test 2 -- abs(0 + bigreal*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 2");
+            when others =>
+               Report.Failed ("exception in test 2");
+         end;
+
+	 --- test 3 ---
+         begin
+	    Z := 3.0 + 4.0*i;
+	    X := abs Z;
+            Check (X, 5.0 , "test 3 -- abs(3 + 4*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 3");
+            when others =>
+               Report.Failed ("exception in test 3");
+         end;
+
+	 --- test 4 ---
+         declare
+            S : Real;
+         begin
+            S := Real(Real'Machine_Radix) ** (Real'Machine_EMax - 3);
+	    Z := 3.0 * S + 4.0*S*i;
+	    X := abs Z;
+            Check (X, 5.0*S, "test 4 -- abs(3S + 4S*i) for large S", 
+                   5.0*Real'Model_Epsilon);
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 4");
+            when others =>
+               Report.Failed ("exception in test 4");
+         end;
+
+	 --- test 5 --- 
+         begin
+            T := Real'Model_Small;
+	    Z := T + 0.0*i;
+	    X := abs Z;
+            Check (X, T , "test 5 -- abs(small + 0*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 5");
+            when others =>
+               Report.Failed ("exception in test 5");
+         end;
+
+	 --- test 6 ---
+         begin
+            T := Real'Model_Small;
+	    Z := 0.0 + T*i;
+	    X := abs Z;
+            Check (X, T , "test 6 -- abs(0 + small*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 6");
+            when others =>
+               Report.Failed ("exception in test 6");
+         end;
+
+	 --- test 7 ---
+         declare
+            S : Real;
+         begin
+            S := Real(Real'Machine_Radix) ** (Real'Model_EMin + 3);
+	    Z := 3.0 * S + 4.0*S*i;
+	    X := abs Z;
+            Check (X, 5.0*S, "test 7 -- abs(3S + 4S*i) for small S", 
+                   5.0*Real'Model_Epsilon);
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 7");
+            when others =>
+               Report.Failed ("exception in test 7");
+         end;
+
+	 --- test 8 ---
+         declare
+            -- CRC Standard Mathematical Tables;  23rd Edition; pg 738
+            Sqrt2 : constant := 
+              1.41421_35623_73095_04880_16887_24209_69807_85696_71875_37695;
+         begin
+	    Z := 1.0 + 1.0*i;
+	    X := abs Z;
+            Check (X, Sqrt2 , "test 8 -- abs(1 + 1*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 8");
+            when others =>
+               Report.Failed ("exception in test 8");
+         end;
+
+	 --- test 9 --- 
+         begin
+            T := 0.0;
+	    Z := T + 0.0*i;
+	    X := abs Z;
+            Check (X, T , "test 5 -- abs(0 + 0*i)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 9");
+            when others =>
+               Report.Failed ("exception in test 9");
+         end;
+      end Do_Test;
+   end Non_Generic_Check;
+
+   -----------------------------------------------------------------------
+   --- end of "manual instantiation" 
+   -----------------------------------------------------------------------
+   package Chk_Float is new Generic_Check (Float);
+
+   -- check the floating point type with the most digits
+   type A_Long_Float is digits System.Max_Digits;
+   package Chk_A_Long_Float is new Generic_Check (A_Long_Float);
+begin
+   Report.Test ("CXG2002",
+                "Check the accuracy of the complex modulus" &
+                " function");
+
+   if Verbose then
+      Report.Comment ("checking Standard.Float");
+   end if;
+   Chk_Float.Do_Test;
+
+   if Verbose then
+      Report.Comment ("checking a digits" & 
+                      Integer'Image (System.Max_Digits) &
+                      " floating point type");
+   end if;
+   Chk_A_Long_Float.Do_Test;
+
+   if Verbose then
+      Report.Comment ("checking non-generic package");
+   end if;
+   Non_Generic_Check.Do_Test;
+   Report.Result;
+end CXG2002;