[PATCH, OpenACC, 1/8] Multi-dimensional dynamic array support for OpenACC data clauses, gomp-constants.h additions

This part defines GOMP_MAP_DYNAMIC_ARRAY_* symbols in include/gomp-constants.h.
Basically use the next bit to define GOMP_MAP_FLAG_SPECIAL_3 to achieve this
purpose.

Thanks,
Chung-Lin Tang

        include/
        * gomp-constants.h (GOMP_MAP_FLAG_SPECIAL_3): Define.
        (enum gomp_map_kind): Add GOMP_MAP_DYNAMIC_ARRAY,
        GOMP_MAP_DYNAMIC_ARRAY_TO, GOMP_MAP_DYNAMIC_ARRAY_FROM,
        GOMP_MAP_DYNAMIC_ARRAY_TOFROM, GOMP_MAP_DYNAMIC_ARRAY_FORCE_TO,
        GOMP_MAP_DYNAMIC_ARRAY_FORCE_FROM, GOMP_MAP_DYNAMIC_ARRAY_FORCE_TOFROM,
        GOMP_MAP_DYNAMIC_ARRAY_ALLOC, GOMP_MAP_DYNAMIC_ARRAY_FORCE_ALLOC,
        GOMP_MAP_DYNAMIC_ARRAY_FORCE_PRESENT.
        (GOMP_MAP_DYNAMIC_ARRAY_P): Define.

diff --git a/include/gomp-constants.h b/include/gomp-constants.h
index ccfb657..f25169c 100644
--- a/include/gomp-constants.h
+++ b/include/gomp-constants.h
@@ -40,6 +40,7 @@
 #define GOMP_MAP_FLAG_SPECIAL_0                (1 << 2)
 #define GOMP_MAP_FLAG_SPECIAL_1                (1 << 3)
 #define GOMP_MAP_FLAG_SPECIAL_2                (1 << 4)
+#define GOMP_MAP_FLAG_SPECIAL_3                (1 << 5)
 #define GOMP_MAP_FLAG_SPECIAL          (GOMP_MAP_FLAG_SPECIAL_1 \
                                         | GOMP_MAP_FLAG_SPECIAL_0)
 /* Flag to force a specific behavior (or else, trigger a run-time error).  */
@@ -128,6 +129,26 @@ enum gomp_map_kind
     /* Decrement usage count and deallocate if zero.  */
     GOMP_MAP_RELEASE =                 (GOMP_MAP_FLAG_SPECIAL_2
                                         | GOMP_MAP_DELETE),
+    /* Mapping kinds for dynamic arrays.  */
+    GOMP_MAP_DYNAMIC_ARRAY =           (GOMP_MAP_FLAG_SPECIAL_3),
+    GOMP_MAP_DYNAMIC_ARRAY_TO =                (GOMP_MAP_DYNAMIC_ARRAY
+                                        | GOMP_MAP_TO),
+    GOMP_MAP_DYNAMIC_ARRAY_FROM =      (GOMP_MAP_DYNAMIC_ARRAY
+                                        | GOMP_MAP_FROM),
+    GOMP_MAP_DYNAMIC_ARRAY_TOFROM =    (GOMP_MAP_DYNAMIC_ARRAY
+                                        | GOMP_MAP_TOFROM),
+    GOMP_MAP_DYNAMIC_ARRAY_FORCE_TO =  (GOMP_MAP_DYNAMIC_ARRAY_TO
+                                        | GOMP_MAP_FLAG_FORCE),
+    GOMP_MAP_DYNAMIC_ARRAY_FORCE_FROM =                
(GOMP_MAP_DYNAMIC_ARRAY_FROM
+                                                | GOMP_MAP_FLAG_FORCE),
+    GOMP_MAP_DYNAMIC_ARRAY_FORCE_TOFROM =      (GOMP_MAP_DYNAMIC_ARRAY_TOFROM
+                                                | GOMP_MAP_FLAG_FORCE),
+    GOMP_MAP_DYNAMIC_ARRAY_ALLOC =             (GOMP_MAP_DYNAMIC_ARRAY
+                                                | GOMP_MAP_ALLOC),
+    GOMP_MAP_DYNAMIC_ARRAY_FORCE_ALLOC =       (GOMP_MAP_DYNAMIC_ARRAY
+                                                | GOMP_MAP_FORCE_ALLOC),
+    GOMP_MAP_DYNAMIC_ARRAY_FORCE_PRESENT =     (GOMP_MAP_DYNAMIC_ARRAY
+                                                | GOMP_MAP_FORCE_PRESENT),
 
     /* Internal to GCC, not used in libgomp.  */
     /* Do not map, but pointer assign a pointer instead.  */
@@ -156,6 +177,8 @@ enum gomp_map_kind
 #define GOMP_MAP_ALWAYS_P(X) \
   (GOMP_MAP_ALWAYS_TO_P (X) || ((X) == GOMP_MAP_ALWAYS_FROM))
 
+#define GOMP_MAP_DYNAMIC_ARRAY_P(X) \
+  ((X) & GOMP_MAP_DYNAMIC_ARRAY)
 
 /* Asynchronous behavior.  Keep in sync with
    libgomp/{openacc.h,openacc.f90,openacc_lib.h}:acc_async_t.  */