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diff --git a/gcc/testsuite/ada/acats/tests/cxg/cxg2003.a b/gcc/testsuite/ada/acats/tests/cxg/cxg2003.a
new file mode 100644
index 000000000..d1a225a50
--- /dev/null
+++ b/gcc/testsuite/ada/acats/tests/cxg/cxg2003.a
@@ -0,0 +1,701 @@
+-- CXG2003.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 sqrt function returns
+--      results that are within the error bound allowed.
+--
+-- TEST DESCRIPTION:
+--      This test contains three test packages that are almost
+--      identical.  The first two packages differ only in the 
+--      floating point type that is being tested.  The first
+--      and third package differ only in whether the generic
+--      elementary functions package or the pre-instantiated
+--      package is used.
+--      The test package is not generic so that the arguments
+--      and expected results for some of the test values
+--      can be expressed as universal real instead of being
+--      computed at runtime.
+--
+-- 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:
+--       2 FEB 96   SAIC    Initial release for 2.1
+--      18 AUG 96   SAIC    Made Check consistent with other tests.
+--
+--!
+
+with System;
+with Report;
+with Ada.Numerics.Generic_Elementary_Functions;
+with Ada.Numerics.Elementary_Functions;
+procedure CXG2003 is
+   Verbose : constant Boolean := False;
+
+   package Float_Check is
+      subtype Real is Float;
+      procedure Do_Test;
+   end Float_Check;
+
+   package body Float_Check is
+      package Elementary_Functions is new 
+           Ada.Numerics.Generic_Elementary_Functions (Real);
+      function Sqrt (X : Real) return Real renames
+           Elementary_Functions.Sqrt;
+      function Log (X : Real) return Real renames
+           Elementary_Functions.Log;
+      function Exp (X : Real) return Real renames
+           Elementary_Functions.Exp;
+
+      -- The default Maximum Relative Error is the value specified
+      -- in the LRM.
+      Default_MRE : constant Real := 2.0;
+
+      procedure Check (Actual, Expected : Real;
+                       Test_Name : String;
+                       MRE : Real := Default_MRE) is
+         Rel_Error : Real;
+         Abs_Error : Real;
+         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 (Actual - Expected) &
+                           " mre:" & 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 Argument_Range_Check (A, B : Real;
+                                      Test : String) is
+         -- test a logarithmically distributed selection of 
+         -- arguments selected from the range A to B. 
+         X : Real;
+         Expected : Real;
+         Y : Real;
+         C : Real := Log(B/A);
+         Max_Samples : constant := 1000;
+
+      begin
+         for I in 1..Max_Samples loop
+            Expected :=  A * Exp(C * Real (I) / Real (Max_Samples));
+            X := Expected * Expected;
+            Y := Sqrt (X);
+
+            -- note that since the expected value is computed, we
+            -- must take the error in that computation into account.
+            Check (Y, Expected, 
+                   "test " & Test & " -" &
+                   Integer'Image (I) &
+                   " of argument range",
+                   3.0);
+         end loop;
+      exception
+         when Constraint_Error => 
+            Report.Failed 
+               ("Constraint_Error raised in argument range check");
+         when others =>
+            Report.Failed ("exception in argument range check");
+      end Argument_Range_Check;
+
+      procedure Do_Test is
+      begin
+
+         --- test 1 ---
+         declare
+            T : constant := (Real'Machine_EMax - 1) / 2;
+            X : constant := (1.0 * Real'Machine_Radix) ** (2 * T);
+	    Expected : constant := (1.0 * Real'Machine_Radix) ** T;
+	    Y : Real;
+         begin
+            Y := Sqrt (X);
+            Check (Y, Expected, "test 1 -- sqrt(radix**((emax-1)/2))");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 1");
+            when others =>
+               Report.Failed ("exception in test 1");
+         end;
+
+         --- test 2 ---
+	 declare
+            T : constant := (Real'Model_EMin + 1) / 2;
+            X : constant := (1.0 * Real'Machine_Radix) ** (2 * T);
+	    Expected : constant := (1.0 * Real'Machine_Radix) ** T;
+	    Y : Real;
+         begin
+            Y := Sqrt (X);
+            Check (Y, Expected, "test 2 -- sqrt(radix**((emin+1)/2))");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 2");
+            when others =>
+               Report.Failed ("exception in test 2");
+         end;
+
+         --- test 3 ---
+	 declare
+	    X : constant := 1.0;
+	    Expected : constant := 1.0;
+            Y : Real;
+         begin
+            Y := Sqrt(X);
+            Check (Y, Expected, "test 3 -- sqrt(1.0)", 
+                 0.0);   -- no error allowed
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 3");
+            when others =>
+               Report.Failed ("exception in test 3");
+         end;
+
+         --- test 4 ---
+	 declare
+	    X : constant := 0.0;
+	    Expected : constant := 0.0;
+            Y : Real;
+         begin
+            Y := Sqrt(X);
+            Check (Y, Expected, "test 4 -- sqrt(0.0)", 
+                 0.0);   -- no error allowed
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 4");
+            when others =>
+               Report.Failed ("exception in test 4");
+         end;
+
+         --- test 5 ---
+	 declare
+	    X : constant := -1.0;
+            Y : Real;
+         begin
+            Y := Sqrt(X);
+            -- the following code should not be executed.
+            -- The call to Check is to keep the call to Sqrt from
+            -- appearing to be dead code.
+            Check (Y, -1.0, "test 5 -- sqrt(-1)" );
+            Report.Failed ("test 5 - argument_error expected");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 5");
+            when Ada.Numerics.Argument_Error =>
+               if Verbose then
+                  Report.Comment ("test 5 correctly got argument_error");
+               end if;
+            when others =>
+               Report.Failed ("exception in test 5");
+         end;
+
+         --- test 6 ---
+	 declare
+            X : constant := Ada.Numerics.Pi ** 2;
+	    Expected : constant := Ada.Numerics.Pi;
+	    Y : Real;
+         begin
+            Y := Sqrt (X);
+            Check (Y, Expected, "test 6 -- sqrt(pi**2)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 6");
+            when others =>
+               Report.Failed ("exception in test 6");
+         end;
+
+         --- test 7 & 8 ---
+         Argument_Range_Check (1.0/Sqrt(Real(Real'Machine_Radix)), 
+                                1.0, 
+                                "7");
+         Argument_Range_Check (1.0, 
+                                Sqrt(Real(Real'Machine_Radix)), 
+                                "8");
+      end Do_Test;
+   end Float_Check;
+
+   -----------------------------------------------------------------------
+   -----------------------------------------------------------------------
+   -- check the floating point type with the most digits
+   type A_Long_Float is digits System.Max_Digits;
+
+
+   package A_Long_Float_Check is
+      subtype Real is A_Long_Float;
+      procedure Do_Test;
+   end A_Long_Float_Check;
+
+   package body A_Long_Float_Check is
+      package Elementary_Functions is new 
+           Ada.Numerics.Generic_Elementary_Functions (Real);
+      function Sqrt (X : Real) return Real renames
+           Elementary_Functions.Sqrt;
+      function Log (X : Real) return Real renames
+           Elementary_Functions.Log;
+      function Exp (X : Real) return Real renames
+           Elementary_Functions.Exp;
+
+      -- The default Maximum Relative Error is the value specified
+      -- in the LRM.
+      Default_MRE : constant Real := 2.0;
+
+      procedure Check (Actual, Expected : Real;
+                       Test_Name : String;
+                       MRE : Real := Default_MRE) is
+         Rel_Error : Real;
+         Abs_Error : Real;
+         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 (Actual - Expected) &
+                           " mre:" & 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 Argument_Range_Check (A, B : Real;
+                                      Test : String) is
+         -- test a logarithmically distributed selection of 
+         -- arguments selected from the range A to B. 
+         X : Real;
+         Expected : Real;
+         Y : Real;
+         C : Real := Log(B/A);
+         Max_Samples : constant := 1000;
+
+      begin
+         for I in 1..Max_Samples loop
+            Expected :=  A * Exp(C * Real (I) / Real (Max_Samples));
+            X := Expected * Expected;
+            Y := Sqrt (X);
+
+            -- note that since the expected value is computed, we
+            -- must take the error in that computation into account.
+            Check (Y, Expected, 
+                   "test " & Test & " -" &
+                   Integer'Image (I) &
+                   " of argument range",
+                   3.0);
+         end loop;
+      exception
+         when Constraint_Error => 
+            Report.Failed 
+               ("Constraint_Error raised in argument range check");
+         when others =>
+            Report.Failed ("exception in argument range check");
+      end Argument_Range_Check;
+
+
+      procedure Do_Test is
+      begin
+
+         --- test 1 ---
+         declare
+            T : constant := (Real'Machine_EMax - 1) / 2;
+            X : constant := (1.0 * Real'Machine_Radix) ** (2 * T);
+	    Expected : constant := (1.0 * Real'Machine_Radix) ** T;
+	    Y : Real;
+         begin
+            Y := Sqrt (X);
+            Check (Y, Expected, "test 1 -- sqrt(radix**((emax-1)/2))");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 1");
+            when others =>
+               Report.Failed ("exception in test 1");
+         end;
+
+         --- test 2 ---
+	 declare
+            T : constant := (Real'Model_EMin + 1) / 2;
+            X : constant := (1.0 * Real'Machine_Radix) ** (2 * T);
+	    Expected : constant := (1.0 * Real'Machine_Radix) ** T;
+	    Y : Real;
+         begin
+            Y := Sqrt (X);
+            Check (Y, Expected, "test 2 -- sqrt(radix**((emin+1)/2))");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 2");
+            when others =>
+               Report.Failed ("exception in test 2");
+         end;
+
+         --- test 3 ---
+	 declare
+	    X : constant := 1.0;
+	    Expected : constant := 1.0;
+            Y : Real;
+         begin
+            Y := Sqrt(X);
+            Check (Y, Expected, "test 3 -- sqrt(1.0)", 
+                 0.0);   -- no error allowed
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 3");
+            when others =>
+               Report.Failed ("exception in test 3");
+         end;
+
+         --- test 4 ---
+	 declare
+	    X : constant := 0.0;
+	    Expected : constant := 0.0;
+            Y : Real;
+         begin
+            Y := Sqrt(X);
+            Check (Y, Expected, "test 4 -- sqrt(0.0)", 
+                 0.0);   -- no error allowed
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 4");
+            when others =>
+               Report.Failed ("exception in test 4");
+         end;
+
+         --- test 5 ---
+	 declare
+	    X : constant := -1.0;
+            Y : Real;
+         begin
+            Y := Sqrt(X);
+            -- the following code should not be executed.
+            -- The call to Check is to keep the call to Sqrt from
+            -- appearing to be dead code.
+            Check (Y, -1.0, "test 5 -- sqrt(-1)" );
+            Report.Failed ("test 5 - argument_error expected");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 5");
+            when Ada.Numerics.Argument_Error =>
+               if Verbose then
+                  Report.Comment ("test 5 correctly got argument_error");
+               end if;
+            when others =>
+               Report.Failed ("exception in test 5");
+         end;
+
+         --- test 6 ---
+	 declare
+            X : constant := Ada.Numerics.Pi ** 2;
+	    Expected : constant := Ada.Numerics.Pi;
+	    Y : Real;
+         begin
+            Y := Sqrt (X);
+            Check (Y, Expected, "test 6 -- sqrt(pi**2)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 6");
+            when others =>
+               Report.Failed ("exception in test 6");
+         end;
+
+         --- test 7 & 8 ---
+         Argument_Range_Check (1.0/Sqrt(Real(Real'Machine_Radix)), 
+                                1.0, 
+                                "7");
+         Argument_Range_Check (1.0, 
+                                Sqrt(Real(Real'Machine_Radix)), 
+                                "8");
+      end Do_Test;
+   end A_Long_Float_Check;
+
+   -----------------------------------------------------------------------
+   -----------------------------------------------------------------------
+
+   package Non_Generic_Check is
+      procedure Do_Test;
+   end Non_Generic_Check;
+
+   package body Non_Generic_Check is
+      package EF renames
+           Ada.Numerics.Elementary_Functions;
+      subtype Real is Float;
+
+      -- The default Maximum Relative Error is the value specified
+      -- in the LRM.
+      Default_MRE : constant Real := 2.0;
+
+      procedure Check (Actual, Expected : Real;
+                       Test_Name : String;
+                       MRE : Real := Default_MRE) is
+         Rel_Error : Real;
+         Abs_Error : Real;
+         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 (Actual - Expected) &
+                           " mre:" & 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 Argument_Range_Check (A, B : Float;
+                                      Test : String) is
+         -- test a logarithmically distributed selection of 
+         -- arguments selected from the range A to B. 
+         X : Float;
+         Expected : Float;
+         Y : Float;
+         C : Float := EF.Log(B/A);
+         Max_Samples : constant := 1000;
+
+      begin
+         for I in 1..Max_Samples loop
+            Expected :=  A * EF.Exp(C * Float (I) / Float (Max_Samples));
+            X := Expected * Expected;
+            Y := EF.Sqrt (X);
+
+            -- note that since the expected value is computed, we
+            -- must take the error in that computation into account.
+            Check (Y, Expected, 
+                   "test " & Test & " -" &
+                   Integer'Image (I) &
+                   " of argument range",
+                   3.0);
+         end loop;
+      exception
+         when Constraint_Error => 
+            Report.Failed 
+               ("Constraint_Error raised in argument range check");
+         when others =>
+            Report.Failed ("exception in argument range check");
+      end Argument_Range_Check;
+
+
+      procedure Do_Test is
+      begin
+
+         --- test 1 ---
+         declare
+            T : constant := (Float'Machine_EMax - 1) / 2;
+            X : constant := (1.0 * Float'Machine_Radix) ** (2 * T);
+	    Expected : constant := (1.0 * Float'Machine_Radix) ** T;
+	    Y : Float;
+         begin
+            Y := EF.Sqrt (X);
+            Check (Y, Expected, "test 1 -- sqrt(radix**((emax-1)/2))");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 1");
+            when others =>
+               Report.Failed ("exception in test 1");
+         end;
+
+         --- test 2 ---
+	 declare
+            T : constant := (Float'Model_EMin + 1) / 2;
+            X : constant := (1.0 * Float'Machine_Radix) ** (2 * T);
+	    Expected : constant := (1.0 * Float'Machine_Radix) ** T;
+	    Y : Float;
+         begin
+            Y := EF.Sqrt (X);
+            Check (Y, Expected, "test 2 -- sqrt(radix**((emin+1)/2))");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 2");
+            when others =>
+               Report.Failed ("exception in test 2");
+         end;
+
+         --- test 3 ---
+	 declare
+	    X : constant := 1.0;
+	    Expected : constant := 1.0;
+            Y : Float;
+         begin
+            Y := EF.Sqrt(X);
+            Check (Y, Expected, "test 3 -- sqrt(1.0)", 
+                 0.0);   -- no error allowed
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 3");
+            when others =>
+               Report.Failed ("exception in test 3");
+         end;
+
+         --- test 4 ---
+	 declare
+	    X : constant := 0.0;
+	    Expected : constant := 0.0;
+            Y : Float;
+         begin
+            Y := EF.Sqrt(X);
+            Check (Y, Expected, "test 4 -- sqrt(0.0)", 
+                 0.0);   -- no error allowed
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 4");
+            when others =>
+               Report.Failed ("exception in test 4");
+         end;
+
+         --- test 5 ---
+	 declare
+	    X : constant := -1.0;
+            Y : Float;
+         begin
+            Y := EF.Sqrt(X);
+            -- the following code should not be executed.
+            -- The call to Check is to keep the call to Sqrt from
+            -- appearing to be dead code.
+            Check (Y, -1.0, "test 5 -- sqrt(-1)" );
+            Report.Failed ("test 5 - argument_error expected");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 5");
+            when Ada.Numerics.Argument_Error =>
+               if Verbose then
+                  Report.Comment ("test 5 correctly got argument_error");
+               end if;
+            when others =>
+               Report.Failed ("exception in test 5");
+         end;
+
+         --- test 6 ---
+	 declare
+            X : constant := Ada.Numerics.Pi ** 2;
+	    Expected : constant := Ada.Numerics.Pi;
+	    Y : Float;
+         begin
+            Y := EF.Sqrt (X);
+            Check (Y, Expected, "test 6 -- sqrt(pi**2)");
+         exception
+            when Constraint_Error => 
+               Report.Failed ("Constraint_Error raised in test 6");
+            when others =>
+               Report.Failed ("exception in test 6");
+         end;
+
+         --- test 7 & 8 ---
+         Argument_Range_Check (1.0/EF.Sqrt(Float(Float'Machine_Radix)), 
+                                1.0, 
+                                "7");
+         Argument_Range_Check (1.0, 
+                                EF.Sqrt(Float(Float'Machine_Radix)), 
+                                "8");
+      end Do_Test;
+   end Non_Generic_Check;
+
+   -----------------------------------------------------------------------
+   -----------------------------------------------------------------------
+
+begin
+   Report.Test ("CXG2003",
+                "Check the accuracy of the sqrt function"); 
+
+   if Verbose then
+      Report.Comment ("checking Standard.Float");
+   end if;
+
+   Float_Check.Do_Test;
+
+   if Verbose then
+      Report.Comment ("checking a digits" & 
+                      Integer'Image (System.Max_Digits) &
+                      " floating point type");
+   end if;
+
+   A_Long_Float_Check.Do_Test;
+
+   if Verbose then
+      Report.Comment ("checking non-generic package");
+   end if;
+
+   Non_Generic_Check.Do_Test;
+
+   Report.Result;
+end CXG2003;