--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/ada/acats/tests/c5/c52011a.ada	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,170 @@
+-- C52011A.ADA
+
+--                             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.
+--*
+-- CHECK INDEX CONSTRAINTS FOR ASSIGNMENT OF ACCESS SUBTYPES.
+-- SPECIFICALLY, CHECK THAT:
+
+-- A) ANY ACCESS TYPE VARIABLE AND CONSTRAINED SUBTYPE VARIABLES OF THAT
+-- TYPE MAY BE ASSIGNED TO ONE ANOTHER IF THE VALUE BEING ASSIGNED
+-- IS NULL.
+
+-- B) VARIABLES OF THE SAME CONSTRAINED ACCESS SUBTYPE MAY BE ASSIGNED
+-- TO ONE ANOTHER OR TO VARIABLES OF THE BASE ACCESS TYPE.
+
+-- C) CONSTRAINT_ERROR IS RAISED UPON ASSIGNMENT OF NON-NULL OBJECTS
+-- BETWEEN DIFFERENTLY CONSTRAINED ACCESS SUBTYPES.
+
+-- D) CONSTRAINT_ERROR IS RAISED UPON ASSIGNMENT OF A NON-NULL OBJECT
+-- OF A BASE ACCESS TYPE VARIABLE TO A VARIABLE OF ONE OF ITS
+-- CONSTRAINED SUBTYPES IF THE CONSTRAINTS ON THE OBJECT DIFFER
+-- FROM THOSE ON THE SUBTYPE.
+
+-- E) NULL CAN BE ASSIGNED TO BASE ACCESS TYPES AND ANY CONSTRAINED
+-- SUBTYPES OF THIS TYPE.
+
+-- ASL 6/29/81
+--  RM 6/17/82
+-- SPS 10/26/82
+-- RLB  6/29/01 - FIXED TO ALLOW AGGRESIVE OPTIMIZATION.
+
+WITH REPORT;
+PROCEDURE C52011A IS
+
+     USE REPORT;
+
+     TYPE ARR IS ARRAY(INTEGER RANGE <>) OF INTEGER;
+     TYPE ARR_NAME IS ACCESS ARR;
+     SUBTYPE S1 IS ARR_NAME(IDENT_INT(1)..IDENT_INT(10));
+     SUBTYPE S2 IS ARR_NAME(IDENT_INT(3)..IDENT_INT(6));
+
+     W : ARR_NAME := NULL;                    -- E.
+     X1,X2 : S1 := NULL;                      -- E.
+     Y1,Y2 : S2 := NULL;                      -- E.
+
+     W_NONNULL  : ARR_NAME := NEW ARR'(3..5=>7) ;
+     X1_NONNULL : S1       := NEW ARR'(IDENT_INT(1)..IDENT_INT(10)=>7);
+     Y1_NONNULL : S2       := NEW ARR'(IDENT_INT(3)..IDENT_INT( 6)=>7);
+
+     TOO_EARLY : BOOLEAN := TRUE;
+
+BEGIN
+
+     TEST ("C52011A", "INDEX CONSTRAINTS ON ACCESS SUBTYPE OBJECTS " &
+                      "MUST BE SATISFIED FOR ASSIGNMENT");
+
+     BEGIN
+
+          IF EQUAL(3,3) THEN
+               W_NONNULL := X1;               -- A.
+          END IF;
+          IF W_NONNULL /= X1 THEN
+               FAILED ("ASSIGNMENT FAILED - 1");
+          END IF;
+
+          IF EQUAL(3,3) THEN
+               X1_NONNULL := X2;              -- A.
+          END IF;
+          IF X1_NONNULL /= X2 THEN
+               FAILED ("ASSIGNMENT FAILED - 2");
+          END IF;
+
+          IF EQUAL(3,3) THEN
+               X1_NONNULL := Y1;              -- A.
+          END IF;
+          IF X1 /= Y1 THEN
+               FAILED ("ASSIGNMENT FAILED - 3");
+          END IF;
+
+          X1 := NEW ARR'(1..IDENT_INT(10) => 5);
+          IF EQUAL(3,3) THEN
+               X2 := X1;                      -- B.
+          END IF;
+          IF X2 /= X1 THEN
+               FAILED ("ASSIGNMENT FAILED - 4");
+          END IF;
+
+          IF EQUAL(3,3) THEN
+               W := X1;                       -- B.
+          END IF;
+          IF W /= X1 THEN
+               FAILED ("ASSIGNMENT FAILED - 5");
+          END IF;
+
+          BEGIN
+               Y1 := X1;                      -- C.
+               IF Y1'FIRST /= REPORT.IDENT_INT(3) THEN
+                  FAILED ("NON-NULL ASSIGNMENT MADE BETWEEN TWO " &
+                     "VARIABLES OF DIFFERENT CONSTRAINED ACCESS SUBTYPES " &
+                     "AND CONSTRAINT IS CHANGED");
+               ELSE
+                  FAILED ("NON-NULL ASSIGNMENT MADE BETWEEN TWO " &
+                     "VARIABLES OF DIFFERENT CONSTRAINED ACCESS SUBTYPES " &
+                     "AND CONSTRAINT IS NOT CHANGED");
+               END IF;
+          EXCEPTION
+
+               WHEN CONSTRAINT_ERROR => NULL;
+
+               WHEN OTHERS =>
+                    FAILED ("WRONG EXCEPTION - 1");
+
+          END;
+
+          W := NEW ARR'(IDENT_INT(3)..IDENT_INT(6) => 3);
+
+          BEGIN
+               X1 := W;                            -- D.
+               IF X1'FIRST /= REPORT.IDENT_INT(1) THEN
+                  FAILED ("NON-NULL ASSIGNMENT MADE FROM UNCONSTRAINED " &
+                          "ACCESS TYPE DESIGNATING CONSTRAINED OBJECT TO "&
+                          "ACCESS SUBTYPE WITH DIFFERENT CONSTRAINT " &
+                          "AND CONSTRAINT IS CHANGED");
+               ELSE
+                  FAILED ("NON-NULL ASSIGNMENT MADE FROM UNCONSTRAINED " &
+                          "ACCESS TYPE DESIGNATING CONSTRAINED OBJECT TO "&
+                          "ACCESS SUBTYPE WITH DIFFERENT CONSTRAINT " &
+                          "AND CONSTRAINT IS NOT CHANGED");
+               END IF;
+          EXCEPTION
+
+               WHEN CONSTRAINT_ERROR =>
+                    NULL ;
+
+               WHEN OTHERS =>
+                    FAILED ("WRONG EXCEPTION - 2");
+
+          END;
+
+     EXCEPTION
+
+          WHEN OTHERS =>
+               FAILED ("EXCEPTION RAISED");
+
+     END;
+
+
+     RESULT;
+
+
+END C52011A;