* *
* C Header File *
* *
- * *
- * Copyright (C) 1992-2001 Free Software Foundation, Inc. *
+ * Copyright (C) 1992-2006 Free Software Foundation, Inc. *
* *
* GNAT is free software; you can redistribute it and/or modify it under *
* terms of the GNU General Public License as published by the Free Soft- *
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
* for more details. You should have received a copy of the GNU General *
* Public License distributed with GNAT; see file COPYING. If not, write *
- * to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, *
- * MA 02111-1307, USA. *
+ * to the Free Software Foundation, 51 Franklin Street, Fifth Floor, *
+ * Boston, MA 02110-1301, USA. *
* *
* GNAT was originally developed by the GNAT team at New York University. *
- * It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). *
+ * Extensive contributions were provided by Ada Core Technologies Inc. *
* *
****************************************************************************/
};
#undef DEFTREECODE
-/* A tree to hold a loop ID. */
-struct tree_loop_id GTY(())
-{
- struct tree_common common;
- struct nesting *loop_id;
-};
-
-/* The language-specific tree. */
-union lang_tree_node
- GTY((desc ("TREE_CODE (&%h.generic) == GNAT_LOOP_ID")))
+/* Ada uses the lang_decl and lang_type fields to hold a tree. */
+union lang_tree_node
+ GTY((desc ("0"),
+ chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.t)")))
{
- union tree_node GTY ((tag ("0"),
- desc ("tree_node_structure (&%h)")))
- generic;
- struct tree_loop_id GTY ((tag ("1"))) loop_id;
-};
-
-/* Ada uses the lang_decl and lang_type fields to hold more trees. */
-struct lang_decl GTY(())
-{
- union lang_tree_node
- GTY((desc ("TREE_CODE (&%h.generic) == GNAT_LOOP_ID"))) t;
-};
-struct lang_type GTY(())
-{
- union lang_tree_node
- GTY((desc ("TREE_CODE (&%h.generic) == GNAT_LOOP_ID"))) t;
+ union tree_node GTY((tag ("0"))) t;
};
+struct lang_decl GTY(()) {tree t; };
+struct lang_type GTY(()) {tree t; };
+
+/* Define macros to get and set the tree in TYPE_ and DECL_LANG_SPECIFIC. */
+#define GET_TYPE_LANG_SPECIFIC(NODE) \
+ (TYPE_LANG_SPECIFIC (NODE) ? TYPE_LANG_SPECIFIC (NODE)->t : NULL_TREE)
+#define SET_TYPE_LANG_SPECIFIC(NODE, X) \
+ (TYPE_LANG_SPECIFIC (NODE) \
+ = (TYPE_LANG_SPECIFIC (NODE) \
+ ? TYPE_LANG_SPECIFIC (NODE) : ggc_alloc (sizeof (struct lang_type)))) \
+ ->t = X;
+
+#define GET_DECL_LANG_SPECIFIC(NODE) \
+ (DECL_LANG_SPECIFIC (NODE) ? DECL_LANG_SPECIFIC (NODE)->t : NULL_TREE)
+#define SET_DECL_LANG_SPECIFIC(NODE, VALUE) \
+ (DECL_LANG_SPECIFIC (NODE) \
+ = (DECL_LANG_SPECIFIC (NODE) \
+ ? DECL_LANG_SPECIFIC (NODE) : ggc_alloc (sizeof (struct lang_decl)))) \
+ ->t = VALUE;
/* Flags added to GCC type nodes. */
/* For RECORD_TYPE, UNION_TYPE, and QUAL_UNION_TYPE, nonzero if this is a
record being used as a fat pointer (only true for RECORD_TYPE). */
-#define TYPE_IS_FAT_POINTER_P(NODE) TYPE_LANG_FLAG_0 (NODE)
+#define TYPE_IS_FAT_POINTER_P(NODE) \
+ TYPE_LANG_FLAG_0 (RECORD_OR_UNION_CHECK (NODE))
#define TYPE_FAT_POINTER_P(NODE) \
(TREE_CODE (NODE) == RECORD_TYPE && TYPE_IS_FAT_POINTER_P (NODE))
-/* For integral types, nonzero if this is a packed array type. Such
- types should not be extended to a larger size. */
+/* For integral types and array types, nonzero if this is a packed array type.
+ Such types should not be extended to a larger size. */
#define TYPE_PACKED_ARRAY_TYPE_P(NODE) TYPE_LANG_FLAG_0 (NODE)
+#define TYPE_IS_PACKED_ARRAY_TYPE_P(NODE) \
+ ((TREE_CODE (NODE) == INTEGER_TYPE || TREE_CODE (NODE) == ARRAY_TYPE) \
+ && TYPE_PACKED_ARRAY_TYPE_P (NODE))
+
/* For INTEGER_TYPE, nonzero if this is a modular type with a modulus that
is not equal to two to the power of its mode's size. */
#define TYPE_MODULAR_P(NODE) TYPE_LANG_FLAG_1 (INTEGER_TYPE_CHECK (NODE))
TYPE_LANG_FLAG_1 (FUNCTION_TYPE_CHECK (NODE))
/* For RECORD_TYPE, UNION_TYPE, and QUAL_UNION_TYPE, nonzero if this denotes
- a left-justified modular type (will only be true for RECORD_TYPE). */
-#define TYPE_LEFT_JUSTIFIED_MODULAR_P(NODE) TYPE_LANG_FLAG_1 (NODE)
+ a justified modular type (will only be true for RECORD_TYPE). */
+#define TYPE_JUSTIFIED_MODULAR_P(NODE) \
+ TYPE_LANG_FLAG_1 (RECORD_OR_UNION_CHECK (NODE))
/* Nonzero in an arithmetic subtype if this is a subtype not known to the
front-end. */
/* For RECORD_TYPE, UNION_TYPE, and QUAL_UNION_TYPE, nonzero if this is the
type for an object whose type includes its template in addition to
its value (only true for RECORD_TYPE). */
-#define TYPE_CONTAINS_TEMPLATE_P(NODE) TYPE_LANG_FLAG_3 (NODE)
+#define TYPE_CONTAINS_TEMPLATE_P(NODE) \
+ TYPE_LANG_FLAG_3 (RECORD_OR_UNION_CHECK (NODE))
/* For INTEGER_TYPE, nonzero if this really represents a VAX
floating-point type. */
#define TYPE_RETURNS_BY_REF_P(NODE) \
TYPE_LANG_FLAG_4 (FUNCTION_TYPE_CHECK (NODE))
+/* For FUNCTION_TYPEs, nonzero if function returns by being passed a pointer
+ to a place to store its result. */
+#define TYPE_RETURNS_BY_TARGET_PTR_P(NODE) \
+ TYPE_LANG_FLAG_5 (FUNCTION_TYPE_CHECK (NODE))
+
/* For VOID_TYPE, ENUMERAL_TYPE, UNION_TYPE, and RECORD_TYPE, nonzero if this
is a dummy type, made to correspond to a private or incomplete type. */
#define TYPE_DUMMY_P(NODE) TYPE_LANG_FLAG_4 (NODE)
return values of the out (or in out) parameters that qualify to be passed
by copy in copy out. It is a CONSTRUCTOR. For a full description of the
cico parameter passing mechanism refer to the routine gnat_to_gnu_entity. */
-#define TYPE_CI_CO_LIST(NODE) \
- (&TYPE_LANG_SPECIFIC (FUNCTION_TYPE_CHECK (NODE))->t.generic)
-#define SET_TYPE_CI_CO_LIST(NODE, X) \
- (TYPE_LANG_SPECIFIC (FUNCTION_TYPE_CHECK (NODE)) = (struct lang_type *)(X))
+#define TYPE_CI_CO_LIST(NODE) TYPE_LANG_SLOT_1 (FUNCTION_TYPE_CHECK (NODE))
/* For an INTEGER_TYPE with TYPE_MODULAR_P, this is the value of the
modulus. */
-#define TYPE_MODULUS(NODE) \
- (&TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE))->t.generic)
+#define TYPE_MODULUS(NODE) GET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE))
#define SET_TYPE_MODULUS(NODE, X) \
- (TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE)) = (struct lang_type *)(X))
+ SET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE), X)
/* For an INTEGER_TYPE that is the TYPE_DOMAIN of some ARRAY_TYPE, points to
the type corresponding to the Ada index type. */
-#define TYPE_INDEX_TYPE(NODE) \
- (&TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE))->t.generic)
-#define SET_TYPE_INDEX_TYPE(NODE, X) \
- (TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE)) = (struct lang_type *)(X))
+#define TYPE_INDEX_TYPE(NODE) \
+ GET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE))
+#define SET_TYPE_INDEX_TYPE(NODE, X) \
+ SET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE), X)
/* For an INTEGER_TYPE with TYPE_VAX_FLOATING_POINT_P, stores the
Digits_Value. */
-#define TYPE_DIGITS_VALUE(NODE) \
- ((long) TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE)))
+#define TYPE_DIGITS_VALUE(NODE) \
+ GET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE))
#define SET_TYPE_DIGITS_VALUE(NODE, X) \
- (TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE)) = (struct lang_type *)(X))
-
-/* For INTEGER_TYPE, stores the RM_Size of the type. */
-#define TYPE_RM_SIZE_INT(NODE) TYPE_VALUES (INTEGER_TYPE_CHECK (NODE))
+ SET_TYPE_LANG_SPECIFIC (INTEGER_TYPE_CHECK (NODE), X)
-/* Likewise for ENUMERAL_TYPE. */
-#define TYPE_RM_SIZE_ENUM(NODE) \
- (&TYPE_LANG_SPECIFIC (ENUMERAL_TYPE_CHECK (NODE))->t.generic)
-#define SET_TYPE_RM_SIZE_ENUM(NODE, X) \
- (TYPE_LANG_SPECIFIC (ENUMERAL_TYPE_CHECK (NODE)) = (struct lang_type *)(X))
+/* For numeric types, stores the RM_Size of the type. */
+#define TYPE_RM_SIZE_NUM(NODE) TYPE_LANG_SLOT_1 (NUMERICAL_TYPE_CHECK (NODE))
#define TYPE_RM_SIZE(NODE) \
- (TREE_CODE (NODE) == ENUMERAL_TYPE ? TYPE_RM_SIZE_ENUM (NODE) \
- : TREE_CODE (NODE) == INTEGER_TYPE ? TYPE_RM_SIZE_INT (NODE) \
- : 0)
+ (INTEGRAL_TYPE_P (NODE) || TREE_CODE (NODE) == REAL_TYPE \
+ ? TYPE_RM_SIZE_NUM (NODE) : 0)
/* For a RECORD_TYPE that is a fat pointer, point to the type for the
unconstrained object. Likewise for a RECORD_TYPE that is pointed
to by a thin pointer. */
#define TYPE_UNCONSTRAINED_ARRAY(NODE) \
- (&TYPE_LANG_SPECIFIC (RECORD_TYPE_CHECK (NODE))->t.generic)
+ GET_TYPE_LANG_SPECIFIC (RECORD_TYPE_CHECK (NODE))
#define SET_TYPE_UNCONSTRAINED_ARRAY(NODE, X) \
- (TYPE_LANG_SPECIFIC (RECORD_TYPE_CHECK (NODE)) = (struct lang_type *)(X))
+ SET_TYPE_LANG_SPECIFIC (RECORD_TYPE_CHECK (NODE), X)
/* For other RECORD_TYPEs and all UNION_TYPEs and QUAL_UNION_TYPEs, the Ada
size of the object. This differs from the GCC size in that it does not
include any rounding up to the alignment of the type. */
-#define TYPE_ADA_SIZE(NODE) (&TYPE_LANG_SPECIFIC (NODE)->t.generic)
+#define TYPE_ADA_SIZE(NODE) \
+ GET_TYPE_LANG_SPECIFIC (RECORD_OR_UNION_CHECK (NODE))
#define SET_TYPE_ADA_SIZE(NODE, X) \
- (TYPE_LANG_SPECIFIC (NODE) = (struct lang_type *)(X))
+ SET_TYPE_LANG_SPECIFIC (RECORD_OR_UNION_CHECK (NODE), X)
/* For an INTEGER_TYPE with TYPE_HAS_ACTUAL_BOUNDS_P or an ARRAY_TYPE, this is
the index type that should be used when the actual bounds are required for
a template. This is used in the case of packed arrays. */
-#define TYPE_ACTUAL_BOUNDS(NODE) (&TYPE_LANG_SPECIFIC (NODE)->t.generic)
+#define TYPE_ACTUAL_BOUNDS(NODE) \
+ GET_TYPE_LANG_SPECIFIC (TREE_CHECK2 (NODE, INTEGER_TYPE, ARRAY_TYPE))
#define SET_TYPE_ACTUAL_BOUNDS(NODE, X) \
- (TYPE_LANG_SPECIFIC (NODE) = (struct lang_type *)(X))
+ SET_TYPE_LANG_SPECIFIC (TREE_CHECK2 (NODE, INTEGER_TYPE, ARRAY_TYPE), X)
/* In an UNCONSTRAINED_ARRAY_TYPE, points to the record containing both
- the template and object. */
-#define TYPE_OBJECT_RECORD_TYPE(NODE) TYPE_MIN_VALUE (NODE)
+ the template and object.
+
+ ??? We also put this on an ENUMERAL_TYPE that's dummy. Technically,
+ this is a conflict on the minval field, but there doesn't seem to be
+ simple fix, so we'll live with this kludge for now. */
+#define TYPE_OBJECT_RECORD_TYPE(NODE) \
+ (TREE_CHECK2 ((NODE), UNCONSTRAINED_ARRAY_TYPE, ENUMERAL_TYPE)->type.minval)
/* Nonzero in a FUNCTION_DECL that represents a stubbed function
discriminant. */
/* Nonzero if this decl is a PARM_DECL for an Ada array being passed to a
foreign convention subprogram. */
-#define DECL_BY_COMPONENT_PTR_P(NODE) DECL_LANG_FLAG_2 (NODE)
+#define DECL_BY_COMPONENT_PTR_P(NODE) DECL_LANG_FLAG_2 (PARM_DECL_CHECK (NODE))
/* Nonzero in a FIELD_DECL that is a dummy built for some internal reason. */
#define DECL_INTERNAL_P(NODE) DECL_LANG_FLAG_3 (FIELD_DECL_CHECK (NODE))
/* Nonzero in a PARM_DECL if we are to pass by descriptor. */
#define DECL_BY_DESCRIPTOR_P(NODE) DECL_LANG_FLAG_5 (PARM_DECL_CHECK (NODE))
+/* Nonzero in a VAR_DECL if it is a pointer renaming a global object. */
+#define DECL_RENAMING_GLOBAL_P(NODE) DECL_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
+
/* In a CONST_DECL, points to a VAR_DECL that is allocatable to
memory. Used when a scalar constant is aliased or has its
address taken. */
#define DECL_CONST_CORRESPONDING_VAR(NODE) \
- (&DECL_LANG_SPECIFIC (CONST_DECL_CHECK (NODE))->t.generic)
+ GET_DECL_LANG_SPECIFIC (CONST_DECL_CHECK (NODE))
#define SET_DECL_CONST_CORRESPONDING_VAR(NODE, X) \
- (DECL_LANG_SPECIFIC (CONST_DECL_CHECK (NODE)) = (struct lang_decl *)(X))
+ SET_DECL_LANG_SPECIFIC (CONST_DECL_CHECK (NODE), X)
/* In a FIELD_DECL, points to the FIELD_DECL that was the ultimate
source of the decl. */
#define DECL_ORIGINAL_FIELD(NODE) \
- (&DECL_LANG_SPECIFIC (FIELD_DECL_CHECK (NODE))->t.generic)
+ GET_DECL_LANG_SPECIFIC (FIELD_DECL_CHECK (NODE))
#define SET_DECL_ORIGINAL_FIELD(NODE, X) \
- (DECL_LANG_SPECIFIC (FIELD_DECL_CHECK (NODE)) = (struct lang_decl *)(X))
+ SET_DECL_LANG_SPECIFIC (FIELD_DECL_CHECK (NODE), X)
+
+/* In a VAR_DECL, points to the object being renamed if the VAR_DECL is a
+ renaming pointer, otherwise 0. Note that this object is guaranteed to
+ be protected against multiple evaluations. */
+#define DECL_RENAMED_OBJECT(NODE) \
+ GET_DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))
+#define SET_DECL_RENAMED_OBJECT(NODE, X) \
+ SET_DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE), X)
/* In a FIELD_DECL corresponding to a discriminant, contains the
discriminant number. */
#define DECL_DISCRIMINANT_NUMBER(NODE) DECL_INITIAL (FIELD_DECL_CHECK (NODE))
-/* This is a horrible kludge to store the loop_id of a loop into a tree
- node. We need to find some other place to store it! */
-#define TREE_LOOP_ID(NODE) \
- (((union lang_tree_node *)TREE_CHECK (NODE, GNAT_LOOP_ID))->loop_id.loop_id)
+/* Define fields and macros for statements.
+
+ Start by defining which tree codes are used for statements. */
+#define IS_STMT(NODE) (STATEMENT_CLASS_P (NODE))
+#define IS_ADA_STMT(NODE) (IS_STMT (NODE) \
+ && TREE_CODE (NODE) >= STMT_STMT)
+
+#define STMT_STMT_STMT(NODE) TREE_OPERAND_CHECK_CODE (NODE, STMT_STMT, 0)
+#define LOOP_STMT_TOP_COND(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_STMT, 0)
+#define LOOP_STMT_BOT_COND(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_STMT, 1)
+#define LOOP_STMT_UPDATE(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_STMT, 2)
+#define LOOP_STMT_BODY(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_STMT, 3)
+#define LOOP_STMT_LABEL(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_STMT, 4)
+#define EXIT_STMT_COND(NODE) TREE_OPERAND_CHECK_CODE (NODE, EXIT_STMT, 0)
+#define EXIT_STMT_LABEL(NODE) TREE_OPERAND_CHECK_CODE (NODE, EXIT_STMT, 1)
+#define REGION_STMT_BODY(NODE) TREE_OPERAND_CHECK_CODE (NODE, REGION_STMT, 0)
+#define REGION_STMT_HANDLE(NODE) TREE_OPERAND_CHECK_CODE (NODE, REGION_STMT, 1)
+#define REGION_STMT_BLOCK(NODE) TREE_OPERAND_CHECK_CODE (NODE, REGION_STMT, 2)
+#define HANDLER_STMT_ARG(NODE) TREE_OPERAND_CHECK_CODE (NODE, HANDLER_STMT, 0)
+#define HANDLER_STMT_LIST(NODE) TREE_OPERAND_CHECK_CODE (NODE, HANDLER_STMT, 1)
+#define HANDLER_STMT_BLOCK(NODE) TREE_OPERAND_CHECK_CODE(NODE, HANDLER_STMT, 2)
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