#include "config.h"
#include "system.h"
#include "tree.h"
#include "real.h"
#include "flags.h"
#include "rtl.h"
#include "expr.h"
#include "ggc.h"
#include "function.h"
#include "except.h"
#include "debug.h"
#include "output.h"
#include "ada.h"
#include "types.h"
#include "atree.h"
#include "elists.h"
#include "namet.h"
#include "nlists.h"
#include "snames.h"
#include "stringt.h"
#include "uintp.h"
#include "urealp.h"
#include "fe.h"
#include "sinfo.h"
#include "einfo.h"
#include "ada-tree.h"
#include "gigi.h"
int max_gnat_nodes;
int number_names;
struct Node *Nodes_Ptr;
Node_Id *Next_Node_Ptr;
Node_Id *Prev_Node_Ptr;
struct Elist_Header *Elists_Ptr;
struct Elmt_Item *Elmts_Ptr;
struct String_Entry *Strings_Ptr;
Char_Code *String_Chars_Ptr;
struct List_Header *List_Headers_Ptr;
const char *ref_filename;
int discard_file_names;
int type_annotate_only;
tree gnu_block_stack;
static GTY(()) tree gnu_except_ptr_stack;
static GTY(()) tree gnu_pending_elaboration_lists;
static enum tree_code gnu_codes[Number_Node_Kinds];
Node_Id error_gnat_node;
static GTY(()) tree gnu_return_label_stack;
static tree tree_transform PARAMS((Node_Id));
static void elaborate_all_entities PARAMS((Node_Id));
static void process_freeze_entity PARAMS((Node_Id));
static void process_inlined_subprograms PARAMS((Node_Id));
static void process_decls PARAMS((List_Id, List_Id, Node_Id,
int, int));
static tree emit_access_check PARAMS((tree));
static tree emit_discriminant_check PARAMS((tree, Node_Id));
static tree emit_range_check PARAMS((tree, Node_Id));
static tree emit_index_check PARAMS((tree, tree, tree, tree));
static tree emit_check PARAMS((tree, tree, int));
static tree convert_with_check PARAMS((Entity_Id, tree,
int, int, int));
static int addressable_p PARAMS((tree));
static tree assoc_to_constructor PARAMS((Node_Id, tree));
static tree extract_values PARAMS((tree, tree));
static tree pos_to_constructor PARAMS((Node_Id, tree, Entity_Id));
static tree maybe_implicit_deref PARAMS((tree));
static tree gnat_stabilize_reference_1 PARAMS((tree, int));
static int build_unit_elab PARAMS((Entity_Id, int, tree));
static REAL_VALUE_TYPE dconstp5;
static REAL_VALUE_TYPE dconstmp5;
void
gigi (gnat_root, max_gnat_node, number_name, nodes_ptr, next_node_ptr,
prev_node_ptr, elists_ptr, elmts_ptr, strings_ptr, string_chars_ptr,
list_headers_ptr, number_units, file_info_ptr, standard_integer,
standard_long_long_float, standard_exception_type, gigi_operating_mode)
Node_Id gnat_root;
int max_gnat_node;
int number_name;
struct Node *nodes_ptr;
Node_Id *next_node_ptr;
Node_Id *prev_node_ptr;
struct Elist_Header *elists_ptr;
struct Elmt_Item *elmts_ptr;
struct String_Entry *strings_ptr;
Char_Code *string_chars_ptr;
struct List_Header *list_headers_ptr;
Int number_units ATTRIBUTE_UNUSED;
char *file_info_ptr ATTRIBUTE_UNUSED;
Entity_Id standard_integer;
Entity_Id standard_long_long_float;
Entity_Id standard_exception_type;
Int gigi_operating_mode;
{
tree gnu_standard_long_long_float;
tree gnu_standard_exception_type;
max_gnat_nodes = max_gnat_node;
number_names = number_name;
Nodes_Ptr = nodes_ptr;
Next_Node_Ptr = next_node_ptr;
Prev_Node_Ptr = prev_node_ptr;
Elists_Ptr = elists_ptr;
Elmts_Ptr = elmts_ptr;
Strings_Ptr = strings_ptr;
String_Chars_Ptr = string_chars_ptr;
List_Headers_Ptr = list_headers_ptr;
type_annotate_only = (gigi_operating_mode == 1);
discard_file_names = (Global_Discard_Names || Debug_Flag_NN);
if (Nkind (gnat_root) != N_Compilation_Unit)
gigi_abort (301);
set_lineno (gnat_root, 0);
init_gnat_to_gnu ();
init_dummy_type ();
init_code_table ();
if (!Stack_Check_Probes_On_Target)
set_stack_check_libfunc (gen_rtx (SYMBOL_REF, Pmode, "_gnat_stack_check"));
save_gnu_tree (Base_Type (standard_integer),
TYPE_NAME (integer_type_node), 0);
gnu_except_ptr_stack = tree_cons (NULL_TREE, NULL_TREE, NULL_TREE);
dconstp5 = REAL_VALUE_ATOF ("0.5", DFmode);
dconstmp5 = REAL_VALUE_ATOF ("-0.5", DFmode);
gnu_standard_long_long_float
= gnat_to_gnu_entity (Base_Type (standard_long_long_float), NULL_TREE, 0);
gnu_standard_exception_type
= gnat_to_gnu_entity (Base_Type (standard_exception_type), NULL_TREE, 0);
init_gigi_decls (gnu_standard_long_long_float, gnu_standard_exception_type);
#ifdef ASM_OUTPUT_IDENT
if (Present (Ident_String (Main_Unit)))
ASM_OUTPUT_IDENT
(asm_out_file,
TREE_STRING_POINTER (gnat_to_gnu (Ident_String (Main_Unit))));
#endif
if (Exception_Mechanism == GCC_ZCX)
gnat_init_gcc_eh ();
gnat_to_code (gnat_root);
}
void
gnat_to_code (gnat_node)
Node_Id gnat_node;
{
tree gnu_root;
error_gnat_node = gnat_node;
gnu_root = tree_transform (gnat_node);
if (gnu_root != error_mark_node)
gigi_abort (302);
}
tree
gnat_to_gnu (gnat_node)
Node_Id gnat_node;
{
tree gnu_root;
error_gnat_node = gnat_node;
gnu_root = tree_transform (gnat_node);
if (gnu_root == error_mark_node && ! type_annotate_only)
gigi_abort (303);
return gnu_root;
}
static tree
tree_transform (gnat_node)
Node_Id gnat_node;
{
tree gnu_result = error_mark_node;
tree gnu_result_type = void_type_node;
tree gnu_expr;
tree gnu_lhs, gnu_rhs;
Node_Id gnat_temp;
Entity_Id gnat_temp_type;
set_lineno (gnat_node, 0);
if (global_bindings_p ()
&& ((IN (Nkind (gnat_node), N_Statement_Other_Than_Procedure_Call)
&& Nkind (gnat_node) != N_Null_Statement)
|| Nkind (gnat_node) == N_Procedure_Call_Statement
|| Nkind (gnat_node) == N_Label
|| (Nkind (gnat_node) == N_Handled_Sequence_Of_Statements
&& (Present (Exception_Handlers (gnat_node))
|| Present (At_End_Proc (gnat_node))))
|| ((Nkind (gnat_node) == N_Raise_Constraint_Error
|| Nkind (gnat_node) == N_Raise_Storage_Error
|| Nkind (gnat_node) == N_Raise_Program_Error)
&& (Ekind (Etype (gnat_node)) == E_Void))))
{
add_pending_elaborations (NULL_TREE, make_transform_expr (gnat_node));
return error_mark_node;
}
if (type_annotate_only
&& IN (Nkind (gnat_node), N_Subexpr)
&& Nkind (gnat_node) != N_Identifier
&& ! Compile_Time_Known_Value (gnat_node))
{
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (TREE_CODE (gnu_result_type) == VOID_TYPE)
return error_mark_node;
else
return build1 (NULL_EXPR, gnu_result_type,
build_call_raise (CE_Range_Check_Failed));
}
switch (Nkind (gnat_node))
{
case N_Identifier:
case N_Expanded_Name:
case N_Operator_Symbol:
case N_Defining_Identifier:
gnat_temp = (Nkind (gnat_node) == N_Defining_Identifier
? gnat_node : Entity (gnat_node));
gnat_temp_type = Etype (gnat_temp);
if (Etype (gnat_node) != gnat_temp_type
&& ! (Is_Packed (gnat_temp_type)
&& Etype (gnat_node) == Packed_Array_Type (gnat_temp_type))
&& ! (IN (Ekind (gnat_temp_type), Private_Kind)
&& Present (Full_View (gnat_temp_type))
&& ((Etype (gnat_node) == Full_View (gnat_temp_type))
|| (Is_Packed (Full_View (gnat_temp_type))
&& Etype (gnat_node) ==
Packed_Array_Type (Full_View (gnat_temp_type)))))
&& (!Is_Itype (Etype (gnat_node)) || !Is_Itype (gnat_temp_type))
&& (Ekind (gnat_temp) == E_Variable
|| Ekind (gnat_temp) == E_Component
|| Ekind (gnat_temp) == E_Constant
|| Ekind (gnat_temp) == E_Loop_Parameter
|| IN (Ekind (gnat_temp), Formal_Kind)))
gigi_abort (304);
if (Is_Private_Type (gnat_temp_type)
&& Has_Unknown_Discriminants (gnat_temp_type)
&& Present (Full_View (gnat_temp))
&& ! Is_Type (gnat_temp))
{
gnat_temp = Full_View (gnat_temp);
gnat_temp_type = Etype (gnat_temp);
gnu_result_type = get_unpadded_type (gnat_temp_type);
}
else
{
if ((Ekind (gnat_temp) == E_Constant
|| Ekind (gnat_temp) == E_Variable || Is_Formal (gnat_temp))
&& ! (Is_Array_Type (Etype (gnat_temp))
&& Present (Packed_Array_Type (Etype (gnat_temp))))
&& Present (Actual_Subtype (gnat_temp))
&& present_gnu_tree (Actual_Subtype (gnat_temp)))
gnat_temp_type = Actual_Subtype (gnat_temp);
else
gnat_temp_type = Etype (gnat_node);
gnu_result_type = get_unpadded_type (gnat_temp_type);
}
gnu_result = gnat_to_gnu_entity (gnat_temp, NULL_TREE, 0);
if (TREE_VALUE (gnu_except_ptr_stack) != 0)
{
gnat_mark_addressable (gnu_result);
flush_addressof (gnu_result);
}
if (DECL_P (gnu_result)
&& (DECL_BY_REF_P (gnu_result)
|| DECL_BY_COMPONENT_PTR_P (gnu_result)))
{
int ro = DECL_POINTS_TO_READONLY_P (gnu_result);
if (DECL_BY_COMPONENT_PTR_P (gnu_result))
gnu_result = convert (build_pointer_type (gnu_result_type),
gnu_result);
gnu_result = build_unary_op (INDIRECT_REF, NULL_TREE,
fold (gnu_result));
TREE_READONLY (gnu_result) = TREE_STATIC (gnu_result) = ro;
}
if (TREE_CODE (TREE_TYPE (gnu_result)) == FUNCTION_TYPE
|| Is_Constr_Subt_For_UN_Aliased (gnat_temp_type))
{
gnu_result_type = TREE_TYPE (gnu_result);
if (TREE_CODE (gnu_result_type) == RECORD_TYPE
&& TYPE_IS_PADDING_P (gnu_result_type))
gnu_result_type = TREE_TYPE (TYPE_FIELDS (gnu_result_type));
}
if (TREE_CODE (gnu_result) == CONST_DECL)
{
gnat_temp = Parent (gnat_node);
if (DECL_CONST_CORRESPONDING_VAR (gnu_result) == 0
|| (Nkind (gnat_temp) != N_Reference
&& ! (Nkind (gnat_temp) == N_Attribute_Reference
&& ((Get_Attribute_Id (Attribute_Name (gnat_temp))
== Attr_Address)
|| (Get_Attribute_Id (Attribute_Name (gnat_temp))
== Attr_Access)
|| (Get_Attribute_Id (Attribute_Name (gnat_temp))
== Attr_Unchecked_Access)
|| (Get_Attribute_Id (Attribute_Name (gnat_temp))
== Attr_Unrestricted_Access)))))
gnu_result = DECL_INITIAL (gnu_result);
}
break;
case N_Integer_Literal:
{
tree gnu_type;
gnu_type = gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (TREE_CODE (gnu_type) == RECORD_TYPE
&& TYPE_LEFT_JUSTIFIED_MODULAR_P (gnu_type))
gnu_type = TREE_TYPE (TYPE_FIELDS (gnu_type));
gnu_result = UI_To_gnu (Intval (gnat_node), gnu_type);
if (TREE_CONSTANT_OVERFLOW (gnu_result))
gigi_abort (305);
}
break;
case N_Character_Literal:
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (Present (Entity (gnat_node)))
gnu_result = DECL_INITIAL (get_gnu_tree (Entity (gnat_node)));
else
gnu_result = convert (gnu_result_type,
build_int_2 (Char_Literal_Value (gnat_node), 0));
break;
case N_Real_Literal:
if (IN (Ekind (Underlying_Type (Etype (gnat_node))), Fixed_Point_Kind))
{
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result = UI_To_gnu (Corresponding_Integer_Value (gnat_node),
gnu_result_type);
if (TREE_CONSTANT_OVERFLOW (gnu_result)
#if 0
|| (TREE_CODE (TYPE_MIN_VALUE (gnu_result_type)) == INTEGER_CST
&& tree_int_cst_lt (gnu_result,
TYPE_MIN_VALUE (gnu_result_type)))
|| (TREE_CODE (TYPE_MAX_VALUE (gnu_result_type)) == INTEGER_CST
&& tree_int_cst_lt (TYPE_MAX_VALUE (gnu_result_type),
gnu_result))
#endif
)
gigi_abort (305);
}
else if (Vax_Float (Underlying_Type (Etype (gnat_node))))
gigi_abort (334);
else
{
Ureal ur_realval = Realval (gnat_node);
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (UR_Is_Zero (ur_realval))
gnu_result = convert (gnu_result_type, integer_zero_node);
else
{
if (! Is_Machine_Number (gnat_node))
ur_realval
= Machine (Base_Type (Underlying_Type (Etype (gnat_node))),
ur_realval, Round_Even);
gnu_result
= UI_To_gnu (Numerator (ur_realval), gnu_result_type);
if (Rbase (ur_realval) == 0)
gnu_result
= build_binary_op (RDIV_EXPR,
get_base_type (gnu_result_type),
gnu_result,
UI_To_gnu (Denominator (ur_realval),
gnu_result_type));
else if (Rbase (ur_realval) != 2)
gigi_abort (336);
else
{
REAL_VALUE_TYPE tmp;
real_ldexp (&tmp, &TREE_REAL_CST (gnu_result),
- UI_To_Int (Denominator (ur_realval)));
gnu_result = build_real (gnu_result_type, tmp);
}
}
if (UR_Is_Negative (Realval (gnat_node)))
gnu_result
= build_unary_op (NEGATE_EXPR, get_base_type (gnu_result_type),
gnu_result);
}
break;
case N_String_Literal:
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (TYPE_PRECISION (TREE_TYPE (gnu_result_type)) == HOST_BITS_PER_CHAR)
{
String_Id gnat_string = Strval (gnat_node);
int length = String_Length (gnat_string);
char *string = (char *) alloca (length + 1);
int i;
for (i = 0; i < length; i++)
string[i] = Get_String_Char (gnat_string, i + 1);
string[i] = 0;
gnu_result = build_string (length, string);
TREE_TYPE (gnu_result) = gnu_result_type;
}
else
{
String_Id gnat_string = Strval (gnat_node);
int length = String_Length (gnat_string);
int i;
tree gnu_list = NULL_TREE;
for (i = 0; i < length; i++)
gnu_list
= tree_cons (NULL_TREE,
convert (TREE_TYPE (gnu_result_type),
build_int_2 (Get_String_Char (gnat_string,
i + 1),
0)),
gnu_list);
gnu_result
= build_constructor (gnu_result_type, nreverse (gnu_list));
}
break;
case N_Pragma:
if (type_annotate_only)
break;
if (! Is_Pragma_Name (Chars (gnat_node)))
break;
switch (Get_Pragma_Id (Chars (gnat_node)))
{
case Pragma_Inspection_Point:
if (global_bindings_p ())
break;
set_lineno (gnat_node, 1);
for (gnat_temp = First (Pragma_Argument_Associations (gnat_node));
Present (gnat_temp);
gnat_temp = Next (gnat_temp))
{
gnu_expr = gnat_to_gnu (Expression (gnat_temp));
if (TREE_CODE (gnu_expr) == UNCONSTRAINED_ARRAY_REF)
gnu_expr = TREE_OPERAND (gnu_expr, 0);
gnu_expr = build1 (USE_EXPR, void_type_node, gnu_expr);
TREE_SIDE_EFFECTS (gnu_expr) = 1;
expand_expr_stmt (gnu_expr);
}
break;
case Pragma_Optimize:
switch (Chars (Expression
(First (Pragma_Argument_Associations (gnat_node)))))
{
case Name_Time: case Name_Space:
if (optimize == 0)
post_error ("insufficient -O value?", gnat_node);
break;
case Name_Off:
if (optimize != 0)
post_error ("must specify -O0?", gnat_node);
break;
default:
gigi_abort (331);
break;
}
break;
case Pragma_Reviewable:
if (write_symbols == NO_DEBUG)
post_error ("must specify -g?", gnat_node);
break;
}
break;
case N_Subtype_Declaration:
case N_Full_Type_Declaration:
case N_Incomplete_Type_Declaration:
case N_Private_Type_Declaration:
case N_Private_Extension_Declaration:
case N_Task_Type_Declaration:
process_type (Defining_Entity (gnat_node));
break;
case N_Object_Declaration:
case N_Exception_Declaration:
gnat_temp = Defining_Entity (gnat_node);
if (type_annotate_only
&& (((Is_Array_Type (Etype (gnat_temp))
|| Is_Record_Type (Etype (gnat_temp)))
&& ! Is_Constrained (Etype (gnat_temp)))
|| Is_Concurrent_Type (Etype (gnat_temp))))
break;
if (Present (Expression (gnat_node))
&& ! (Nkind (gnat_node) == N_Object_Declaration
&& No_Initialization (gnat_node))
&& (! type_annotate_only
|| Compile_Time_Known_Value (Expression (gnat_node))))
{
gnu_expr = gnat_to_gnu (Expression (gnat_node));
if (Do_Range_Check (Expression (gnat_node)))
gnu_expr = emit_range_check (gnu_expr, Etype (gnat_temp));
if (Present (Freeze_Node (gnat_temp)))
{
if ((Is_Public (gnat_temp) || global_bindings_p ())
&& ! TREE_CONSTANT (gnu_expr))
gnu_expr
= create_var_decl (create_concat_name (gnat_temp, "init"),
NULL_TREE, TREE_TYPE (gnu_expr), gnu_expr,
0, Is_Public (gnat_temp), 0, 0, 0);
else
gnu_expr = maybe_variable (gnu_expr, Expression (gnat_node));
save_gnu_tree (gnat_node, gnu_expr, 1);
}
}
else
gnu_expr = 0;
if (type_annotate_only && gnu_expr != 0
&& TREE_CODE (gnu_expr) == ERROR_MARK)
gnu_expr = 0;
if (No (Freeze_Node (gnat_temp)))
gnat_to_gnu_entity (gnat_temp, gnu_expr, 1);
break;
case N_Object_Renaming_Declaration:
gnat_temp = Defining_Entity (gnat_node);
if (! Is_Renaming_Of_Object (gnat_temp)
&& ! (type_annotate_only
&& (Is_Array_Type (Etype (gnat_temp))
|| Is_Record_Type (Etype (gnat_temp))
|| Is_Concurrent_Type (Etype (gnat_temp)))))
{
gnu_expr = gnat_to_gnu (Renamed_Object (gnat_temp));
gnat_to_gnu_entity (gnat_temp, gnu_expr, 1);
}
break;
case N_Implicit_Label_Declaration:
gnat_to_gnu_entity (Defining_Entity (gnat_node), NULL_TREE, 1);
break;
case N_Subprogram_Renaming_Declaration:
case N_Package_Renaming_Declaration:
case N_Exception_Renaming_Declaration:
case N_Number_Declaration:
break;
case N_Explicit_Dereference:
gnu_result = gnat_to_gnu (Prefix (gnat_node));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (Do_Access_Check (gnat_node))
gnu_result = emit_access_check (gnu_result);
gnu_result = build_unary_op (INDIRECT_REF, NULL_TREE, gnu_result);
break;
case N_Indexed_Component:
{
tree gnu_array_object = gnat_to_gnu (Prefix (gnat_node));
tree gnu_type;
int ndim;
int i;
Node_Id *gnat_expr_array;
if (Do_Access_Check (gnat_node))
gnu_array_object = emit_access_check (gnu_array_object);
gnu_array_object = maybe_implicit_deref (gnu_array_object);
gnu_array_object = maybe_unconstrained_array (gnu_array_object);
if (TREE_CODE (TREE_TYPE (gnu_array_object)) == RECORD_TYPE
&& TYPE_IS_PADDING_P (TREE_TYPE (gnu_array_object)))
gnu_array_object
= convert (TREE_TYPE (TYPE_FIELDS (TREE_TYPE (gnu_array_object))),
gnu_array_object);
gnu_result = gnu_array_object;
for (ndim = 1, gnu_type = TREE_TYPE (gnu_array_object);
TREE_CODE (TREE_TYPE (gnu_type)) == ARRAY_TYPE
&& TYPE_MULTI_ARRAY_P (TREE_TYPE (gnu_type));
ndim++, gnu_type = TREE_TYPE (gnu_type))
;
gnat_expr_array = (Node_Id *) alloca (ndim * sizeof (Node_Id));
if (TYPE_CONVENTION_FORTRAN_P (TREE_TYPE (gnu_array_object)))
for (i = ndim - 1, gnat_temp = First (Expressions (gnat_node));
i >= 0;
i--, gnat_temp = Next (gnat_temp))
gnat_expr_array[i] = gnat_temp;
else
for (i = 0, gnat_temp = First (Expressions (gnat_node));
i < ndim;
i++, gnat_temp = Next (gnat_temp))
gnat_expr_array[i] = gnat_temp;
for (i = 0, gnu_type = TREE_TYPE (gnu_array_object);
i < ndim; i++, gnu_type = TREE_TYPE (gnu_type))
{
if (TREE_CODE (gnu_type) != ARRAY_TYPE)
gigi_abort (307);
gnat_temp = gnat_expr_array[i];
gnu_expr = gnat_to_gnu (gnat_temp);
if (Do_Range_Check (gnat_temp))
gnu_expr
= emit_index_check
(gnu_array_object, gnu_expr,
TYPE_MIN_VALUE (TYPE_INDEX_TYPE (TYPE_DOMAIN (gnu_type))),
TYPE_MAX_VALUE (TYPE_INDEX_TYPE (TYPE_DOMAIN (gnu_type))));
gnu_result = build_binary_op (ARRAY_REF, NULL_TREE,
gnu_result, gnu_expr);
}
}
gnu_result_type = get_unpadded_type (Etype (gnat_node));
break;
case N_Slice:
{
tree gnu_type;
Node_Id gnat_range_node = Discrete_Range (gnat_node);
gnu_result = gnat_to_gnu (Prefix (gnat_node));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (Do_Access_Check (gnat_node))
gnu_result = emit_access_check (gnu_result);
gnu_result = maybe_implicit_deref (gnu_result);
gnu_result = maybe_unconstrained_array (gnu_result);
gnu_type = TREE_TYPE (gnu_result);
if (Do_Range_Check (gnat_range_node))
{
tree gnu_index_type
= TYPE_INDEX_TYPE (TYPE_DOMAIN (gnu_result_type));
tree gnu_min_expr = TYPE_MIN_VALUE (gnu_index_type);
tree gnu_max_expr = TYPE_MAX_VALUE (gnu_index_type);
tree gnu_expr_l, gnu_expr_h, gnu_expr_type;
gnu_expr_l
= emit_index_check
(gnu_result, gnu_min_expr,
TYPE_MIN_VALUE (TYPE_INDEX_TYPE (TYPE_DOMAIN (gnu_type))),
TYPE_MAX_VALUE (TYPE_INDEX_TYPE (TYPE_DOMAIN (gnu_type))));
gnu_expr_h
= emit_index_check
(gnu_result, gnu_max_expr,
TYPE_MIN_VALUE (TYPE_INDEX_TYPE (TYPE_DOMAIN (gnu_type))),
TYPE_MAX_VALUE (TYPE_INDEX_TYPE (TYPE_DOMAIN (gnu_type))));
gnu_expr_type = get_base_type (TREE_TYPE (gnu_expr_l));
gnu_expr
= build_binary_op (COMPOUND_EXPR, gnu_expr_type,
convert (gnu_expr_type, gnu_expr_h),
convert (gnu_expr_type, gnu_expr_l));
gnu_expr
= fold (build (COND_EXPR, gnu_expr_type,
build_binary_op (GE_EXPR, gnu_expr_type,
convert (gnu_expr_type,
gnu_max_expr),
convert (gnu_expr_type,
gnu_min_expr)),
gnu_expr, gnu_min_expr));
}
else
gnu_expr = TYPE_MIN_VALUE (TYPE_DOMAIN (gnu_result_type));
gnu_result = build_binary_op (ARRAY_RANGE_REF, gnu_result_type,
gnu_result, gnu_expr);
}
break;
case N_Selected_Component:
{
tree gnu_prefix = gnat_to_gnu (Prefix (gnat_node));
Entity_Id gnat_field = Entity (Selector_Name (gnat_node));
Entity_Id gnat_pref_type = Etype (Prefix (gnat_node));
tree gnu_field;
while (IN (Ekind (gnat_pref_type), Incomplete_Or_Private_Kind)
|| IN (Ekind (gnat_pref_type), Access_Kind))
{
if (IN (Ekind (gnat_pref_type), Incomplete_Or_Private_Kind))
gnat_pref_type = Underlying_Type (gnat_pref_type);
else if (IN (Ekind (gnat_pref_type), Access_Kind))
gnat_pref_type = Designated_Type (gnat_pref_type);
}
if (Do_Access_Check (gnat_node))
gnu_prefix = emit_access_check (gnu_prefix);
gnu_prefix = maybe_implicit_deref (gnu_prefix);
if (Is_Tagged_Type (gnat_pref_type))
while (Present (Corresponding_Discriminant (gnat_field)))
gnat_field = Corresponding_Discriminant (gnat_field);
else if (Present (Corresponding_Discriminant (gnat_field)))
gnat_field = Original_Record_Component (gnat_field);
if (TREE_CODE (TREE_TYPE (gnu_prefix)) == COMPLEX_TYPE)
gnu_result = build_unary_op (Present (Next_Entity (gnat_field))
? REALPART_EXPR : IMAGPART_EXPR,
NULL_TREE, gnu_prefix);
else
{
gnu_field = gnat_to_gnu_entity (gnat_field, NULL_TREE, 0);
if (Has_Discriminants (Is_Access_Type (Etype (Prefix (gnat_node)))
? Designated_Type (Etype
(Prefix (gnat_node)))
: Etype (Prefix (gnat_node))))
gnu_prefix = gnat_stabilize_reference (gnu_prefix, 0);
if (Do_Discriminant_Check (gnat_node))
gnu_prefix = emit_discriminant_check (gnu_prefix, gnat_node);
gnu_result
= build_component_ref (gnu_prefix, NULL_TREE, gnu_field);
}
if (gnu_result == 0)
gigi_abort (308);
gnu_result_type = get_unpadded_type (Etype (gnat_node));
}
break;
case N_Attribute_Reference:
{
int attribute = Get_Attribute_Id (Attribute_Name (gnat_node));
int prefix_unused = 0;
tree gnu_prefix;
tree gnu_type;
if (attribute == Attr_Elab_Body || attribute == Attr_Elab_Spec)
{
gnu_prefix
= create_subprog_decl
(create_concat_name (Entity (Prefix (gnat_node)),
attribute == Attr_Elab_Body
? "elabb" : "elabs"),
NULL_TREE, void_ftype, NULL_TREE, 0, 1, 1, 0);
return gnu_prefix;
}
gnu_prefix = gnat_to_gnu (Prefix (gnat_node));
gnu_type = TREE_TYPE (gnu_prefix);
if (TREE_CODE (gnu_prefix) == NULL_EXPR)
{
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result = build1 (NULL_EXPR, gnu_result_type,
TREE_OPERAND (gnu_prefix, 0));
break;
}
switch (attribute)
{
case Attr_Pos:
case Attr_Val:
{
int check_p = Do_Range_Check (First (Expressions (gnat_node)));
gnu_result = gnat_to_gnu (First (Expressions (gnat_node)));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result = convert_with_check (Etype (gnat_node), gnu_result,
check_p, check_p, 1);
}
break;
case Attr_Pred:
case Attr_Succ:
gnu_expr = gnat_to_gnu (First (Expressions (gnat_node)));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (Do_Range_Check (First (Expressions (gnat_node))))
{
gnu_expr = protect_multiple_eval (gnu_expr);
gnu_expr
= emit_check
(build_binary_op (EQ_EXPR, integer_type_node,
gnu_expr,
attribute == Attr_Pred
? TYPE_MIN_VALUE (gnu_result_type)
: TYPE_MAX_VALUE (gnu_result_type)),
gnu_expr, CE_Range_Check_Failed);
}
gnu_result
= build_binary_op (attribute == Attr_Pred
? MINUS_EXPR : PLUS_EXPR,
gnu_result_type, gnu_expr,
convert (gnu_result_type, integer_one_node));
break;
case Attr_Address:
case Attr_Unrestricted_Access:
gnu_prefix
= remove_conversions (gnu_prefix,
! Must_Be_Byte_Aligned (gnat_node));
gnu_prefix = maybe_unconstrained_array (gnu_prefix);
case Attr_Access:
case Attr_Unchecked_Access:
case Attr_Code_Address:
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result
= build_unary_op (((attribute == Attr_Address
|| attribute == Attr_Unrestricted_Access)
&& ! Must_Be_Byte_Aligned (gnat_node))
? ATTR_ADDR_EXPR : ADDR_EXPR,
gnu_result_type, gnu_prefix);
if (attribute == Attr_Code_Address)
{
for (gnu_expr = gnu_result;
TREE_CODE (gnu_expr) == NOP_EXPR
|| TREE_CODE (gnu_expr) == CONVERT_EXPR;
gnu_expr = TREE_OPERAND (gnu_expr, 0))
TREE_CONSTANT (gnu_expr) = 1;
;
if (TREE_CODE (gnu_expr) == ADDR_EXPR)
TREE_STATIC (gnu_expr) = TREE_CONSTANT (gnu_expr) = 1;
}
break;
case Attr_Size:
case Attr_Object_Size:
case Attr_Value_Size:
case Attr_Max_Size_In_Storage_Elements:
gnu_expr = gnu_prefix;
while (TREE_CODE (gnu_expr) == NOP_EXPR)
gnu_expr = TREE_OPERAND (gnu_expr, 0);
gnu_prefix = remove_conversions (gnu_prefix, 1);
prefix_unused = 1;
gnu_type = TREE_TYPE (gnu_prefix);
if (TREE_CODE (gnu_type) == UNCONSTRAINED_ARRAY_TYPE)
{
gnu_type = TYPE_OBJECT_RECORD_TYPE (gnu_type);
if (attribute != Attr_Max_Size_In_Storage_Elements)
gnu_type = TREE_TYPE (TREE_CHAIN (TYPE_FIELDS (gnu_type)));
}
if (TREE_CODE (gnu_prefix) == COMPONENT_REF)
gnu_result = DECL_SIZE (TREE_OPERAND (gnu_prefix, 1));
else if (TREE_CODE (gnu_prefix) != TYPE_DECL
|| attribute == Attr_Object_Size
|| attribute == Attr_Max_Size_In_Storage_Elements)
{
if (TREE_CODE (gnu_type) == RECORD_TYPE
&& TYPE_IS_PADDING_P (gnu_type)
&& TREE_CODE (gnu_expr) == COMPONENT_REF)
{
gnu_result = rm_size (gnu_type);
if (! (contains_placeholder_p
(DECL_SIZE (TREE_OPERAND (gnu_expr, 1)))))
gnu_result
= size_binop (MAX_EXPR, gnu_result,
DECL_SIZE (TREE_OPERAND (gnu_expr, 1)));
}
else
gnu_result = TYPE_SIZE (gnu_type);
}
else
gnu_result = rm_size (gnu_type);
if (gnu_result == 0)
gigi_abort (325);
if (TREE_CODE (gnu_result) != INTEGER_CST
&& contains_placeholder_p (gnu_result))
{
if (TREE_CODE (gnu_prefix) != TYPE_DECL)
gnu_result = build (WITH_RECORD_EXPR, TREE_TYPE (gnu_result),
gnu_result, gnu_prefix);
else
gnu_result = max_size (gnu_result, 1);
}
if (TREE_CODE (gnu_type) == RECORD_TYPE
&& TYPE_CONTAINS_TEMPLATE_P (gnu_type))
gnu_result = size_binop (MINUS_EXPR, gnu_result,
DECL_SIZE (TYPE_FIELDS (gnu_type)));
if (TREE_CODE (gnu_type) == RECORD_TYPE
&& TYPE_CONTAINS_TEMPLATE_P (gnu_type))
gnu_result = size_binop (MINUS_EXPR, gnu_result,
DECL_SIZE (TYPE_FIELDS (gnu_type)));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (attribute == Attr_Max_Size_In_Storage_Elements)
gnu_result = convert (sizetype,
fold (build (CEIL_DIV_EXPR, bitsizetype,
gnu_result,
bitsize_unit_node)));
break;
case Attr_Alignment:
if (TREE_CODE (gnu_prefix) == COMPONENT_REF
&& (TREE_CODE (TREE_TYPE (TREE_OPERAND (gnu_prefix, 0)))
== RECORD_TYPE)
&& (TYPE_IS_PADDING_P
(TREE_TYPE (TREE_OPERAND (gnu_prefix, 0)))))
gnu_prefix = TREE_OPERAND (gnu_prefix, 0);
gnu_type = TREE_TYPE (gnu_prefix);
gnu_result_type = get_unpadded_type (Etype (gnat_node));
prefix_unused = 1;
if (TREE_CODE (gnu_prefix) == COMPONENT_REF)
gnu_result
= size_int (DECL_ALIGN (TREE_OPERAND (gnu_prefix, 1)));
else
gnu_result = size_int (TYPE_ALIGN (gnu_type) / BITS_PER_UNIT);
break;
case Attr_First:
case Attr_Last:
case Attr_Range_Length:
prefix_unused = 1;
if (INTEGRAL_TYPE_P (gnu_type)
|| TREE_CODE (gnu_type) == REAL_TYPE)
{
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (attribute == Attr_First)
gnu_result = TYPE_MIN_VALUE (gnu_type);
else if (attribute == Attr_Last)
gnu_result = TYPE_MAX_VALUE (gnu_type);
else
gnu_result
= build_binary_op
(MAX_EXPR, get_base_type (gnu_result_type),
build_binary_op
(PLUS_EXPR, get_base_type (gnu_result_type),
build_binary_op (MINUS_EXPR,
get_base_type (gnu_result_type),
convert (gnu_result_type,
TYPE_MAX_VALUE (gnu_type)),
convert (gnu_result_type,
TYPE_MIN_VALUE (gnu_type))),
convert (gnu_result_type, integer_one_node)),
convert (gnu_result_type, integer_zero_node));
break;
}
case Attr_Length:
{
int Dimension
= (Present (Expressions (gnat_node))
? UI_To_Int (Intval (First (Expressions (gnat_node))))
: 1);
if (Do_Access_Check (gnat_node))
gnu_prefix = emit_access_check (gnu_prefix);
gnu_prefix = maybe_implicit_deref (gnu_prefix);
gnu_prefix = maybe_unconstrained_array (gnu_prefix);
gnu_type = TREE_TYPE (gnu_prefix);
prefix_unused = 1;
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (TYPE_CONVENTION_FORTRAN_P (gnu_type))
{
int ndim;
tree gnu_type_temp;
for (ndim = 1, gnu_type_temp = gnu_type;
TREE_CODE (TREE_TYPE (gnu_type_temp)) == ARRAY_TYPE
&& TYPE_MULTI_ARRAY_P (TREE_TYPE (gnu_type_temp));
ndim++, gnu_type_temp = TREE_TYPE (gnu_type_temp))
;
Dimension = ndim + 1 - Dimension;
}
for (; Dimension > 1; Dimension--)
gnu_type = TREE_TYPE (gnu_type);
if (TREE_CODE (gnu_type) != ARRAY_TYPE)
gigi_abort (309);
if (attribute == Attr_First)
gnu_result
= TYPE_MIN_VALUE (TYPE_INDEX_TYPE (TYPE_DOMAIN (gnu_type)));
else if (attribute == Attr_Last)
gnu_result
= TYPE_MAX_VALUE (TYPE_INDEX_TYPE (TYPE_DOMAIN (gnu_type)));
else
{
tree gnu_compute_type
= gnat_signed_or_unsigned_type
(0, get_base_type (gnu_result_type));
gnu_result
= build_binary_op
(MAX_EXPR, gnu_compute_type,
build_binary_op
(PLUS_EXPR, gnu_compute_type,
build_binary_op
(MINUS_EXPR, gnu_compute_type,
convert (gnu_compute_type,
TYPE_MAX_VALUE
(TYPE_INDEX_TYPE (TYPE_DOMAIN (gnu_type)))),
convert (gnu_compute_type,
TYPE_MIN_VALUE
(TYPE_INDEX_TYPE (TYPE_DOMAIN (gnu_type))))),
convert (gnu_compute_type, integer_one_node)),
convert (gnu_compute_type, integer_zero_node));
}
if (TREE_CODE (gnu_result) != INTEGER_CST
&& contains_placeholder_p (gnu_result))
gnu_result = build (WITH_RECORD_EXPR, TREE_TYPE (gnu_result),
gnu_result, gnu_prefix);
break;
}
case Attr_Bit_Position:
case Attr_Position:
case Attr_First_Bit:
case Attr_Last_Bit:
case Attr_Bit:
{
HOST_WIDE_INT bitsize;
HOST_WIDE_INT bitpos;
tree gnu_offset;
tree gnu_field_bitpos;
tree gnu_field_offset;
tree gnu_inner;
enum machine_mode mode;
int unsignedp, volatilep;
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_prefix = remove_conversions (gnu_prefix, 1);
prefix_unused = 1;
if (attribute == Attr_Bit
&& TREE_CODE (gnu_prefix) != COMPONENT_REF
&& TREE_CODE (gnu_prefix) != FIELD_DECL)
{
gnu_result = integer_zero_node;
break;
}
else if (TREE_CODE (gnu_prefix) != COMPONENT_REF
&& ! (attribute == Attr_Bit_Position
&& TREE_CODE (gnu_prefix) == FIELD_DECL))
gigi_abort (310);
get_inner_reference (gnu_prefix, &bitsize, &bitpos, &gnu_offset,
&mode, &unsignedp, &volatilep);
if (TREE_CODE (gnu_prefix) == COMPONENT_REF)
{
gnu_field_bitpos
= bit_position (TREE_OPERAND (gnu_prefix, 1));
gnu_field_offset
= byte_position (TREE_OPERAND (gnu_prefix, 1));
for (gnu_inner = TREE_OPERAND (gnu_prefix, 0);
TREE_CODE (gnu_inner) == COMPONENT_REF
&& DECL_INTERNAL_P (TREE_OPERAND (gnu_inner, 1));
gnu_inner = TREE_OPERAND (gnu_inner, 0))
{
gnu_field_bitpos
= size_binop (PLUS_EXPR, gnu_field_bitpos,
bit_position (TREE_OPERAND (gnu_inner,
1)));
gnu_field_offset
= size_binop (PLUS_EXPR, gnu_field_offset,
byte_position (TREE_OPERAND (gnu_inner,
1)));
}
}
else if (TREE_CODE (gnu_prefix) == FIELD_DECL)
{
gnu_field_bitpos = bit_position (gnu_prefix);
gnu_field_offset = byte_position (gnu_prefix);
}
else
{
gnu_field_bitpos = bitsize_zero_node;
gnu_field_offset = size_zero_node;
}
switch (attribute)
{
case Attr_Position:
gnu_result = gnu_field_offset;
break;
case Attr_First_Bit:
case Attr_Bit:
gnu_result = size_int (bitpos % BITS_PER_UNIT);
break;
case Attr_Last_Bit:
gnu_result = bitsize_int (bitpos % BITS_PER_UNIT);
gnu_result
= size_binop (PLUS_EXPR, gnu_result,
TYPE_SIZE (TREE_TYPE (gnu_prefix)));
gnu_result = size_binop (MINUS_EXPR, gnu_result,
bitsize_one_node);
break;
case Attr_Bit_Position:
gnu_result = gnu_field_bitpos;
break;
}
if (TREE_CODE (gnu_result) != INTEGER_CST
&& contains_placeholder_p (gnu_result))
gnu_result = build (WITH_RECORD_EXPR, TREE_TYPE (gnu_result),
gnu_result, gnu_prefix);
break;
}
case Attr_Min:
case Attr_Max:
gnu_lhs = gnat_to_gnu (First (Expressions (gnat_node)));
gnu_rhs = gnat_to_gnu (Next (First (Expressions (gnat_node))));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result = build_binary_op (attribute == Attr_Min
? MIN_EXPR : MAX_EXPR,
gnu_result_type, gnu_lhs, gnu_rhs);
break;
case Attr_Passed_By_Reference:
gnu_result = size_int (default_pass_by_ref (gnu_type)
|| must_pass_by_ref (gnu_type));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
break;
case Attr_Component_Size:
if (TREE_CODE (gnu_prefix) == COMPONENT_REF
&& (TREE_CODE (TREE_TYPE (TREE_OPERAND (gnu_prefix, 0)))
== RECORD_TYPE)
&& (TYPE_IS_PADDING_P
(TREE_TYPE (TREE_OPERAND (gnu_prefix, 0)))))
gnu_prefix = TREE_OPERAND (gnu_prefix, 0);
gnu_prefix = maybe_implicit_deref (gnu_prefix);
gnu_type = TREE_TYPE (gnu_prefix);
if (TREE_CODE (gnu_type) == UNCONSTRAINED_ARRAY_TYPE)
gnu_type
= TREE_TYPE (TREE_TYPE (TYPE_FIELDS (TREE_TYPE (gnu_type))));
while (TREE_CODE (TREE_TYPE (gnu_type)) == ARRAY_TYPE
&& TYPE_MULTI_ARRAY_P (TREE_TYPE (gnu_type)))
gnu_type = TREE_TYPE (gnu_type);
if (TREE_CODE (gnu_type) != ARRAY_TYPE)
gigi_abort (330);
gnu_result = TYPE_SIZE (TREE_TYPE (gnu_type));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
prefix_unused = 1;
break;
case Attr_Null_Parameter:
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result
= build_unary_op (INDIRECT_REF, NULL_TREE,
convert (build_pointer_type (gnu_result_type),
integer_zero_node));
TREE_PRIVATE (gnu_result) = 1;
break;
case Attr_Mechanism_Code:
{
int code;
Entity_Id gnat_obj = Entity (Prefix (gnat_node));
prefix_unused = 1;
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (Present (Expressions (gnat_node)))
{
int i = UI_To_Int (Intval (First (Expressions (gnat_node))));
for (gnat_obj = First_Formal (gnat_obj); i > 1;
i--, gnat_obj = Next_Formal (gnat_obj))
;
}
code = Mechanism (gnat_obj);
if (code == Default)
code = ((present_gnu_tree (gnat_obj)
&& (DECL_BY_REF_P (get_gnu_tree (gnat_obj))
|| (DECL_BY_COMPONENT_PTR_P
(get_gnu_tree (gnat_obj)))))
? By_Reference : By_Copy);
gnu_result = convert (gnu_result_type, size_int (- code));
}
break;
default:
post_error ("unimplemented attribute", gnat_node);
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result = integer_zero_node;
break;
}
if (prefix_unused && TREE_SIDE_EFFECTS (gnu_prefix)
&& (! Is_Entity_Name (Prefix (gnat_node))
|| Do_Access_Check (gnat_node)))
gnu_result = fold (build (COMPOUND_EXPR, TREE_TYPE (gnu_result),
gnu_prefix, gnu_result));
}
break;
case N_Reference:
gnu_result = gnat_to_gnu (Prefix (gnat_node));
gnu_result = build_unary_op (ADDR_EXPR, NULL_TREE, gnu_result);
gnu_result_type = get_unpadded_type (Etype (gnat_node));
break;
case N_Aggregate:
case N_Extension_Aggregate:
{
tree gnu_aggr_type;
gnu_aggr_type = gnu_result_type
= get_unpadded_type (Etype (gnat_node));
if (TREE_CODE (gnu_result_type) == RECORD_TYPE
&& TYPE_CONTAINS_TEMPLATE_P (gnu_result_type))
gnu_aggr_type
= TREE_TYPE (TREE_CHAIN (TYPE_FIELDS (gnu_result_type)));
if (Null_Record_Present (gnat_node))
gnu_result = build_constructor (gnu_aggr_type, NULL_TREE);
else if (TREE_CODE (gnu_aggr_type) == RECORD_TYPE)
gnu_result
= assoc_to_constructor (First (Component_Associations (gnat_node)),
gnu_aggr_type);
else if (TREE_CODE (gnu_aggr_type) == UNION_TYPE)
{
Node_Id gnat_assoc
= Next (First (Component_Associations (gnat_node)));
Entity_Id gnat_field = Entity (First (Choices (gnat_assoc)));
tree gnu_field_type
= TREE_TYPE (gnat_to_gnu_entity (gnat_field, NULL_TREE, 0));
gnu_result = convert (gnu_field_type,
gnat_to_gnu (Expression (gnat_assoc)));
}
else if (TREE_CODE (gnu_aggr_type) == ARRAY_TYPE)
gnu_result = pos_to_constructor (First (Expressions (gnat_node)),
gnu_aggr_type,
Component_Type (Etype (gnat_node)));
else if (TREE_CODE (gnu_aggr_type) == COMPLEX_TYPE)
gnu_result
= build_binary_op
(COMPLEX_EXPR, gnu_aggr_type,
gnat_to_gnu (Expression (First
(Component_Associations (gnat_node)))),
gnat_to_gnu (Expression
(Next
(First (Component_Associations (gnat_node))))));
else
gigi_abort (312);
gnu_result = convert (gnu_result_type, gnu_result);
}
break;
case N_Null:
gnu_result = null_pointer_node;
gnu_result_type = get_unpadded_type (Etype (gnat_node));
break;
case N_Type_Conversion:
case N_Qualified_Expression:
gnu_result = gnat_to_gnu (Expression (gnat_node));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result
= convert_with_check (Etype (gnat_node), gnu_result,
Do_Overflow_Check (gnat_node),
Do_Range_Check (Expression (gnat_node)),
Nkind (gnat_node) == N_Type_Conversion
&& Float_Truncate (gnat_node));
break;
case N_Unchecked_Type_Conversion:
gnu_result = gnat_to_gnu (Expression (gnat_node));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (STRICT_ALIGNMENT && POINTER_TYPE_P (gnu_result_type)
&& IN (Ekind (Etype (gnat_node)), Access_Kind))
{
unsigned int align = known_alignment (gnu_result);
tree gnu_obj_type = TREE_TYPE (gnu_result_type);
unsigned int oalign
= TREE_CODE (gnu_obj_type) == FUNCTION_TYPE
? FUNCTION_BOUNDARY : TYPE_ALIGN (gnu_obj_type);
if (align != 0 && align < oalign && ! TYPE_ALIGN_OK (gnu_obj_type))
post_error_ne_tree_2
("?source alignment (^) < alignment of & (^)",
gnat_node, Designated_Type (Etype (gnat_node)),
size_int (align / BITS_PER_UNIT), oalign / BITS_PER_UNIT);
}
gnu_result = unchecked_convert (gnu_result_type, gnu_result);
break;
case N_In:
case N_Not_In:
{
tree gnu_object = gnat_to_gnu (Left_Opnd (gnat_node));
Node_Id gnat_range = Right_Opnd (gnat_node);
tree gnu_low;
tree gnu_high;
if (Nkind (gnat_range) == N_Range)
{
gnu_low = gnat_to_gnu (Low_Bound (gnat_range));
gnu_high = gnat_to_gnu (High_Bound (gnat_range));
}
else if (Nkind (gnat_range) == N_Identifier
|| Nkind (gnat_range) == N_Expanded_Name)
{
tree gnu_range_type = get_unpadded_type (Entity (gnat_range));
gnu_low = TYPE_MIN_VALUE (gnu_range_type);
gnu_high = TYPE_MAX_VALUE (gnu_range_type);
}
else
gigi_abort (313);
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (operand_equal_p (gnu_low, gnu_high, 0))
gnu_result = build_binary_op (EQ_EXPR, gnu_result_type,
gnu_object, gnu_low);
else
{
gnu_object = protect_multiple_eval (gnu_object);
gnu_result
= build_binary_op (TRUTH_ANDIF_EXPR, gnu_result_type,
build_binary_op (GE_EXPR, gnu_result_type,
gnu_object, gnu_low),
build_binary_op (LE_EXPR, gnu_result_type,
gnu_object, gnu_high));
}
if (Nkind (gnat_node) == N_Not_In)
gnu_result = invert_truthvalue (gnu_result);
}
break;
case N_Op_Divide:
gnu_lhs = gnat_to_gnu (Left_Opnd (gnat_node));
gnu_rhs = gnat_to_gnu (Right_Opnd (gnat_node));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result = build_binary_op (FLOAT_TYPE_P (gnu_result_type)
? RDIV_EXPR
: (Rounded_Result (gnat_node)
? ROUND_DIV_EXPR : TRUNC_DIV_EXPR),
gnu_result_type, gnu_lhs, gnu_rhs);
break;
case N_And_Then: case N_Or_Else:
{
enum tree_code code = gnu_codes[Nkind (gnat_node)];
tree gnu_rhs_side;
gnu_lhs = gnat_to_gnu (Left_Opnd (gnat_node));
clear_last_expr ();
gnu_rhs_side = expand_start_stmt_expr (1);
gnu_rhs = gnat_to_gnu (Right_Opnd (gnat_node));
expand_end_stmt_expr (gnu_rhs_side);
gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (RTL_EXPR_SEQUENCE (gnu_rhs_side) != 0)
gnu_rhs = build (COMPOUND_EXPR, gnu_result_type, gnu_rhs_side,
gnu_rhs);
gnu_result = build_binary_op (code, gnu_result_type, gnu_lhs, gnu_rhs);
}
break;
case N_Op_Or: case N_Op_And: case N_Op_Xor:
if (IN (Ekind (Underlying_Type (Etype (gnat_node))),
Modular_Integer_Kind))
{
enum tree_code code
= (Nkind (gnat_node) == N_Op_Or ? BIT_IOR_EXPR
: Nkind (gnat_node) == N_Op_And ? BIT_AND_EXPR
: BIT_XOR_EXPR);
gnu_lhs = gnat_to_gnu (Left_Opnd (gnat_node));
gnu_rhs = gnat_to_gnu (Right_Opnd (gnat_node));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result = build_binary_op (code, gnu_result_type,
gnu_lhs, gnu_rhs);
break;
}
case N_Op_Eq: case N_Op_Ne: case N_Op_Lt:
case N_Op_Le: case N_Op_Gt: case N_Op_Ge:
case N_Op_Add: case N_Op_Subtract: case N_Op_Multiply:
case N_Op_Mod: case N_Op_Rem:
case N_Op_Rotate_Left:
case N_Op_Rotate_Right:
case N_Op_Shift_Left:
case N_Op_Shift_Right:
case N_Op_Shift_Right_Arithmetic:
{
enum tree_code code = gnu_codes[Nkind (gnat_node)];
tree gnu_type;
gnu_lhs = gnat_to_gnu (Left_Opnd (gnat_node));
gnu_rhs = gnat_to_gnu (Right_Opnd (gnat_node));
gnu_type = gnu_result_type = get_unpadded_type (Etype (gnat_node));
if (TREE_CODE_CLASS (code) == '<')
{
gnu_lhs = maybe_unconstrained_array (gnu_lhs);
gnu_rhs = maybe_unconstrained_array (gnu_rhs);
}
else if (Is_Private_Type (Etype (gnat_node)))
gnu_type = gnu_result_type
= get_unpadded_type (Base_Type (Full_View (Etype (gnat_node))));
if (IN (Nkind (gnat_node), N_Op_Shift)
&& ! Shift_Count_OK (gnat_node))
{
tree gnu_count_type = get_base_type (TREE_TYPE (gnu_rhs));
tree gnu_max_shift
= convert (gnu_count_type, TYPE_SIZE (gnu_type));
if (Nkind (gnat_node) == N_Op_Rotate_Left
|| Nkind (gnat_node) == N_Op_Rotate_Right)
gnu_rhs = build_binary_op (TRUNC_MOD_EXPR, gnu_count_type,
gnu_rhs, gnu_max_shift);
else if (Nkind (gnat_node) == N_Op_Shift_Right_Arithmetic)
gnu_rhs
= build_binary_op
(MIN_EXPR, gnu_count_type,
build_binary_op (MINUS_EXPR,
gnu_count_type,
gnu_max_shift,
convert (gnu_count_type,
integer_one_node)),
gnu_rhs);
}
if (Nkind (gnat_node) == N_Op_Shift_Right
&& ! TREE_UNSIGNED (gnu_type))
gnu_type = gnat_unsigned_type (gnu_type);
else if (Nkind (gnat_node) == N_Op_Shift_Right_Arithmetic
&& TREE_UNSIGNED (gnu_type))
gnu_type = gnat_signed_type (gnu_type);
if (gnu_type != gnu_result_type)
{
gnu_lhs = convert (gnu_type, gnu_lhs);
gnu_rhs = convert (gnu_type, gnu_rhs);
}
gnu_result = build_binary_op (code, gnu_type, gnu_lhs, gnu_rhs);
if ((Nkind (gnat_node) == N_Op_Shift_Left
|| Nkind (gnat_node) == N_Op_Shift_Right)
&& ! Shift_Count_OK (gnat_node))
gnu_result
= build_cond_expr
(gnu_type,
build_binary_op (GE_EXPR, integer_type_node,
gnu_rhs,
convert (TREE_TYPE (gnu_rhs),
TYPE_SIZE (gnu_type))),
convert (gnu_type, integer_zero_node),
gnu_result);
}
break;
case N_Conditional_Expression:
{
tree gnu_cond = gnat_to_gnu (First (Expressions (gnat_node)));
tree gnu_true = gnat_to_gnu (Next (First (Expressions (gnat_node))));
tree gnu_false
= gnat_to_gnu (Next (Next (First (Expressions (gnat_node)))));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result = build_cond_expr (gnu_result_type,
gnat_truthvalue_conversion (gnu_cond),
gnu_true, gnu_false);
}
break;
case N_Op_Plus:
gnu_result = gnat_to_gnu (Right_Opnd (gnat_node));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
break;
case N_Op_Not:
if (IN (Ekind (Etype (gnat_node)), Modular_Integer_Kind))
{
gnu_expr = gnat_to_gnu (Right_Opnd (gnat_node));
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result = build_unary_op (BIT_NOT_EXPR, gnu_result_type,
gnu_expr);
break;
}
case N_Op_Minus: case N_Op_Abs:
gnu_expr = gnat_to_gnu (Right_Opnd (gnat_node));
if (Ekind (Etype (gnat_node)) != E_Private_Type)
gnu_result_type = get_unpadded_type (Etype (gnat_node));
else
gnu_result_type = get_unpadded_type (Base_Type
(Full_View (Etype (gnat_node))));
gnu_result = build_unary_op (gnu_codes[Nkind (gnat_node)],
gnu_result_type, gnu_expr);
break;
case N_Allocator:
{
tree gnu_init = 0;
tree gnu_type;
gnat_temp = Expression (gnat_node);
if (Nkind (gnat_temp) == N_Identifier
|| Nkind (gnat_temp) == N_Expanded_Name)
gnu_type = gnat_to_gnu_type (Entity (gnat_temp));
else if (Nkind (gnat_temp) == N_Qualified_Expression)
{
Entity_Id gnat_desig_type
= Designated_Type (Underlying_Type (Etype (gnat_node)));
gnu_init = gnat_to_gnu (Expression (gnat_temp));
gnu_init = maybe_unconstrained_array (gnu_init);
if (Do_Range_Check (Expression (gnat_temp)))
gnu_init = emit_range_check (gnu_init, gnat_desig_type);
if (Is_Elementary_Type (gnat_desig_type)
|| Is_Constrained (gnat_desig_type))
{
gnu_type = gnat_to_gnu_type (gnat_desig_type);
gnu_init = convert (gnu_type, gnu_init);
}
else
{
gnu_type = gnat_to_gnu_type (Etype (Expression (gnat_temp)));
if (TREE_CODE (gnu_type) == UNCONSTRAINED_ARRAY_TYPE)
gnu_type = TREE_TYPE (gnu_init);
gnu_init = convert (gnu_type, gnu_init);
}
}
else
gigi_abort (315);
gnu_result_type = get_unpadded_type (Etype (gnat_node));
return build_allocator (gnu_type, gnu_init, gnu_result_type,
Procedure_To_Call (gnat_node),
Storage_Pool (gnat_node));
}
break;
case N_Label:
if (! type_annotate_only)
{
tree gnu_label = gnat_to_gnu (Identifier (gnat_node));
Node_Id gnat_parent = Parent (gnat_node);
expand_label (gnu_label);
if (Present (gnat_parent)
&& Nkind (gnat_parent) == N_Exception_Handler
&& First (Statements (gnat_parent)) == gnat_node)
nonlocal_goto_handler_labels
= gen_rtx_EXPR_LIST (VOIDmode, label_rtx (gnu_label),
nonlocal_goto_handler_labels);
}
break;
case N_Null_Statement:
break;
case N_Assignment_Statement:
if (type_annotate_only)
break;
gnu_lhs = maybe_unconstrained_array (gnat_to_gnu (Name (gnat_node)));
gnu_rhs
= maybe_unconstrained_array (gnat_to_gnu (Expression (gnat_node)));
set_lineno (gnat_node, 1);
if (Do_Range_Check (Expression (gnat_node)))
gnu_rhs = emit_range_check (gnu_rhs, Etype (Name (gnat_node)));
if ((TREE_CODE (TYPE_SIZE (TREE_TYPE (gnu_lhs))) == INTEGER_CST
&& TREE_OVERFLOW (TYPE_SIZE (TREE_TYPE (gnu_lhs))))
|| (TREE_CODE (TYPE_SIZE (TREE_TYPE (gnu_rhs))) == INTEGER_CST
&& TREE_OVERFLOW (TYPE_SIZE (TREE_TYPE (gnu_rhs)))))
expand_expr_stmt (build_call_raise (SE_Object_Too_Large));
else
expand_expr_stmt (build_binary_op (MODIFY_EXPR, NULL_TREE,
gnu_lhs, gnu_rhs));
break;
case N_If_Statement:
gnu_expr = gnat_to_gnu (Condition (gnat_node));
set_lineno (gnat_node, 1);
expand_start_cond (gnu_expr, 0);
for (gnat_temp = First (Then_Statements (gnat_node));
Present (gnat_temp);
gnat_temp = Next (gnat_temp))
gnat_to_code (gnat_temp);
if (Present (Elsif_Parts (gnat_node)))
{
for (gnat_temp = First (Elsif_Parts (gnat_node));
Present (gnat_temp);
gnat_temp = Next (gnat_temp))
{
Node_Id gnat_statement;
expand_start_else ();
set_lineno (Condition (gnat_temp), 1);
expand_elseif (gnat_to_gnu (Condition (gnat_temp)));
for (gnat_statement = First (Then_Statements (gnat_temp));
Present (gnat_statement);
gnat_statement = Next (gnat_statement))
gnat_to_code (gnat_statement);
}
}
if (Present (Else_Statements (gnat_node)))
{
expand_start_else ();
for (gnat_temp = First (Else_Statements (gnat_node));
Present (gnat_temp);
gnat_temp = Next (gnat_temp))
gnat_to_code (gnat_temp);
}
expand_end_cond ();
break;
case N_Case_Statement:
{
Node_Id gnat_when;
Node_Id gnat_choice;
tree gnu_label;
Node_Id gnat_statement;
gnu_expr = gnat_to_gnu (Expression (gnat_node));
gnu_expr = convert (get_base_type (TREE_TYPE (gnu_expr)), gnu_expr);
set_lineno (gnat_node, 1);
expand_start_case (1, gnu_expr, TREE_TYPE (gnu_expr), "case");
for (gnat_when = First_Non_Pragma (Alternatives (gnat_node));
Present (gnat_when);
gnat_when = Next_Non_Pragma (gnat_when))
{
for (gnat_choice = First (Discrete_Choices (gnat_when));
Present (gnat_choice); gnat_choice = Next (gnat_choice))
{
int error_code;
gnu_label = build_decl (LABEL_DECL, NULL_TREE, NULL_TREE);
set_lineno (gnat_choice, 1);
switch (Nkind (gnat_choice))
{
case N_Range:
error_code
= pushcase_range (gnat_to_gnu (Low_Bound (gnat_choice)),
gnat_to_gnu (High_Bound (gnat_choice)),
convert, gnu_label, 0);
if (error_code != 0 && error_code != 4)
gigi_abort (332);
break;
case N_Subtype_Indication:
error_code
= pushcase_range
(gnat_to_gnu (Low_Bound (Range_Expression
(Constraint (gnat_choice)))),
gnat_to_gnu (High_Bound (Range_Expression
(Constraint (gnat_choice)))),
convert, gnu_label, 0);
if (error_code != 0 && error_code != 4)
gigi_abort (332);
break;
case N_Identifier:
case N_Expanded_Name:
if (IN (Ekind (Entity (gnat_choice)), Type_Kind))
{
tree type = get_unpadded_type (Entity (gnat_choice));
error_code
= pushcase_range (fold (TYPE_MIN_VALUE (type)),
fold (TYPE_MAX_VALUE (type)),
convert, gnu_label, 0);
if (error_code != 0 && error_code != 4)
gigi_abort (332);
break;
}
case N_Character_Literal:
case N_Integer_Literal:
if (pushcase (gnat_to_gnu (gnat_choice), convert,
gnu_label, 0))
gigi_abort (332);
break;
case N_Others_Choice:
if (pushcase (NULL_TREE, convert, gnu_label, 0))
gigi_abort (332);
break;
default:
gigi_abort (316);
}
}
pushlevel (0);
expand_start_bindings (0);
for (gnat_statement = First (Statements (gnat_when));
Present (gnat_statement);
gnat_statement = Next (gnat_statement))
gnat_to_code (gnat_statement);
expand_exit_something ();
expand_end_bindings (getdecls (), kept_level_p (), 0);
poplevel (kept_level_p (), 1, 0);
}
expand_end_case (gnu_expr);
}
break;
case N_Loop_Statement:
{
tree gnu_loop_var = NULL_TREE;
enum tree_code gnu_update = ERROR_MARK;
struct nesting *loop_id;
tree gnu_top_condition = integer_one_node;
tree gnu_bottom_condition = integer_one_node;
Node_Id gnat_statement;
Node_Id gnat_iter_scheme = Iteration_Scheme (gnat_node);
Node_Id gnat_top_condition = Empty;
int enclosing_if_p = 0;
if (No (gnat_iter_scheme))
;
else if (Present (Condition (gnat_iter_scheme)))
gnat_top_condition = Condition (gnat_iter_scheme);
else
{
Node_Id gnat_loop_spec
= Loop_Parameter_Specification (gnat_iter_scheme);
Entity_Id gnat_loop_var = Defining_Entity (gnat_loop_spec);
Entity_Id gnat_type = Etype (gnat_loop_var);
tree gnu_type = get_unpadded_type (gnat_type);
tree gnu_low = TYPE_MIN_VALUE (gnu_type);
tree gnu_high = TYPE_MAX_VALUE (gnu_type);
int reversep = Reverse_Present (gnat_loop_spec);
tree gnu_first = reversep ? gnu_high : gnu_low;
tree gnu_last = reversep ? gnu_low : gnu_high;
enum tree_code end_code = reversep ? GE_EXPR : LE_EXPR;
tree gnu_base_type = get_base_type (gnu_type);
tree gnu_limit
= (reversep ? TYPE_MIN_VALUE (gnu_base_type)
: TYPE_MAX_VALUE (gnu_base_type));
if (TREE_CODE (gnu_last) != INTEGER_CST
|| TREE_CODE (gnu_limit) != INTEGER_CST
|| tree_int_cst_equal (gnu_last, gnu_limit))
{
gnu_expr = build_binary_op (LE_EXPR, integer_type_node,
gnu_low, gnu_high);
set_lineno (gnat_loop_spec, 1);
expand_start_cond (gnu_expr, 0);
enclosing_if_p = 1;
}
pushlevel (0);
expand_start_bindings (0);
gnu_loop_var = gnat_to_gnu_entity (gnat_loop_var, gnu_first, 1);
if (DECL_BY_REF_P (gnu_loop_var))
gnu_loop_var = build_unary_op (INDIRECT_REF, NULL_TREE,
gnu_loop_var);
gnu_loop_var = convert (get_base_type (gnu_type), gnu_loop_var);
if (enclosing_if_p)
gnu_bottom_condition
= build_binary_op (NE_EXPR, integer_type_node,
gnu_loop_var, gnu_last);
else
gnu_top_condition
= build_binary_op (end_code, integer_type_node,
gnu_loop_var, gnu_last);
gnu_update = reversep ? PREDECREMENT_EXPR : PREINCREMENT_EXPR;
}
set_lineno (gnat_node, 1);
if (gnu_loop_var)
loop_id = expand_start_loop_continue_elsewhere (1);
else
loop_id = expand_start_loop (1);
if (Present (Identifier (gnat_node)))
{
tree gnu_loop_id = make_node (GNAT_LOOP_ID);
TREE_LOOP_ID (gnu_loop_id) = loop_id;
save_gnu_tree (Entity (Identifier (gnat_node)), gnu_loop_id, 1);
}
set_lineno (gnat_node, 1);
if (Present (gnat_top_condition))
gnu_top_condition = gnat_to_gnu (gnat_top_condition);
expand_exit_loop_top_cond (0, gnu_top_condition);
pushlevel (0);
gnu_block_stack
= tree_cons (gnu_bottom_condition, NULL_TREE, gnu_block_stack);
expand_start_bindings (0);
for (gnat_statement = First (Statements (gnat_node));
Present (gnat_statement);
gnat_statement = Next (gnat_statement))
gnat_to_code (gnat_statement);
expand_end_bindings (getdecls (), kept_level_p (), 0);
poplevel (kept_level_p (), 1, 0);
gnu_block_stack = TREE_CHAIN (gnu_block_stack);
set_lineno (gnat_node, 1);
expand_exit_loop_if_false (0, gnu_bottom_condition);
if (gnu_loop_var)
{
expand_loop_continue_here ();
gnu_expr = build_binary_op (gnu_update, TREE_TYPE (gnu_loop_var),
gnu_loop_var,
convert (TREE_TYPE (gnu_loop_var),
integer_one_node));
set_lineno (gnat_iter_scheme, 1);
expand_expr_stmt (gnu_expr);
}
set_lineno (gnat_node, 1);
expand_end_loop ();
if (gnu_loop_var)
{
set_lineno (gnat_node, 1);
expand_end_bindings (getdecls (), 1, 0);
poplevel (1, 1, 0);
}
if (enclosing_if_p)
{
set_lineno (gnat_node, 1);
expand_end_cond ();
}
}
break;
case N_Block_Statement:
pushlevel (0);
gnu_block_stack = tree_cons (NULL_TREE, NULL_TREE, gnu_block_stack);
expand_start_bindings (0);
process_decls (Declarations (gnat_node), Empty, Empty, 1, 1);
gnat_to_code (Handled_Statement_Sequence (gnat_node));
expand_end_bindings (getdecls (), kept_level_p (), 0);
poplevel (kept_level_p (), 1, 0);
gnu_block_stack = TREE_CHAIN (gnu_block_stack);
if (Present (Identifier (gnat_node)))
mark_out_of_scope (Entity (Identifier (gnat_node)));
break;
case N_Exit_Statement:
{
struct nesting *loop_id = 0;
tree gnu_cond = integer_zero_node;
if (Present (Name (gnat_node)))
loop_id
= TREE_LOOP_ID (get_gnu_tree (Entity (Name (gnat_node))));
if (Present (Condition (gnat_node)))
gnu_cond = invert_truthvalue (gnat_truthvalue_conversion
(gnat_to_gnu (Condition (gnat_node))));
set_lineno (gnat_node, 1);
expand_exit_loop_if_false (loop_id, gnu_cond);
}
break;
case N_Return_Statement:
if (type_annotate_only)
break;
{
tree gnu_subprog_type = TREE_TYPE (current_function_decl);
tree gnu_ret_val = 0;
if (TREE_VALUE (gnu_return_label_stack) != 0)
expand_goto (TREE_VALUE (gnu_return_label_stack));
else if (TYPE_CI_CO_LIST (gnu_subprog_type) != NULL_TREE)
{
if (list_length (TYPE_CI_CO_LIST (gnu_subprog_type)) == 1)
gnu_ret_val = TREE_VALUE (TYPE_CI_CO_LIST (gnu_subprog_type));
else
gnu_ret_val
= build_constructor (TREE_TYPE (gnu_subprog_type),
TYPE_CI_CO_LIST (gnu_subprog_type));
}
else if (Present (Expression (gnat_node)))
{
gnu_ret_val = gnat_to_gnu (Expression (gnat_node));
if (TREE_CODE (gnu_ret_val) == COMPONENT_REF
&& (TYPE_IS_PADDING_P
(TREE_TYPE (TREE_OPERAND (gnu_ret_val, 0))))
&& contains_placeholder_p
(TYPE_SIZE (TREE_TYPE (gnu_ret_val))))
gnu_ret_val = TREE_OPERAND (gnu_ret_val, 0);
if (TYPE_RETURNS_BY_REF_P (gnu_subprog_type)
|| By_Ref (gnat_node))
gnu_ret_val = build_unary_op (ADDR_EXPR, NULL_TREE, gnu_ret_val);
else if (TYPE_RETURNS_UNCONSTRAINED_P (gnu_subprog_type))
{
gnu_ret_val = maybe_unconstrained_array (gnu_ret_val);
if (TYPE_RETURNS_STACK_DEPRESSED (gnu_subprog_type))
gnu_ret_val
= build_allocator (TREE_TYPE (gnu_ret_val), gnu_ret_val,
TREE_TYPE (gnu_subprog_type), 0, -1);
else
gnu_ret_val
= build_allocator (TREE_TYPE (gnu_ret_val), gnu_ret_val,
TREE_TYPE (gnu_subprog_type),
Procedure_To_Call (gnat_node),
Storage_Pool (gnat_node));
}
}
set_lineno (gnat_node, 1);
if (gnu_ret_val)
expand_return (build_binary_op (MODIFY_EXPR, NULL_TREE,
DECL_RESULT (current_function_decl),
gnu_ret_val));
else
expand_null_return ();
}
break;
case N_Goto_Statement:
if (type_annotate_only)
break;
gnu_expr = gnat_to_gnu (Name (gnat_node));
TREE_USED (gnu_expr) = 1;
set_lineno (gnat_node, 1);
expand_goto (gnu_expr);
break;
case N_Subprogram_Declaration:
if (No (Freeze_Node (Defining_Entity (Specification (gnat_node)))))
gnat_to_gnu_entity (Defining_Entity (Specification (gnat_node)),
NULL_TREE, 1);
break;
case N_Abstract_Subprogram_Declaration:
for (gnat_temp
= First_Formal (Defining_Entity (Specification (gnat_node)));
Present (gnat_temp);
gnat_temp = Next_Formal_With_Extras (gnat_temp))
if (Is_Itype (Etype (gnat_temp))
&& !From_With_Type (Etype (gnat_temp)))
gnat_to_gnu_entity (Etype (gnat_temp), NULL_TREE, 0);
break;
case N_Defining_Program_Unit_Name:
gnat_to_code (Parent (gnat_node));
break;
case N_Subprogram_Body:
{
enum debug_info_type save_write_symbols = write_symbols;
const struct gcc_debug_hooks *const save_debug_hooks = debug_hooks;
Entity_Id gnat_param;
Entity_Id gnat_subprog_id
= (Present (Corresponding_Spec (gnat_node))
? Corresponding_Spec (gnat_node) : Defining_Entity (gnat_node));
tree gnu_subprog_decl;
tree gnu_subprog_type;
tree gnu_cico_list;
if (Ekind (gnat_subprog_id) == E_Generic_Procedure
|| Ekind (gnat_subprog_id) == E_Generic_Function
|| Is_Eliminated (gnat_subprog_id))
break;
if (Debug_Info_Off (gnat_subprog_id))
{
write_symbols = NO_DEBUG;
debug_hooks = &do_nothing_debug_hooks;
}
gnu_subprog_decl
= gnat_to_gnu_entity (gnat_subprog_id, NULL_TREE,
Acts_As_Spec (gnat_node)
&& ! present_gnu_tree (gnat_subprog_id));
gnu_subprog_type = TREE_TYPE (gnu_subprog_decl);
set_lineno (gnat_node, 0);
DECL_SOURCE_FILE (gnu_subprog_decl) = input_filename;
DECL_SOURCE_LINE (gnu_subprog_decl) = lineno;
begin_subprog_body (gnu_subprog_decl);
set_lineno (gnat_node, 1);
pushlevel (0);
gnu_block_stack = tree_cons (NULL_TREE, NULL_TREE, gnu_block_stack);
expand_start_bindings (0);
gnu_cico_list = TYPE_CI_CO_LIST (gnu_subprog_type);
if (gnu_cico_list != 0)
{
gnu_return_label_stack
= tree_cons (NULL_TREE,
build_decl (LABEL_DECL, NULL_TREE, NULL_TREE),
gnu_return_label_stack);
pushlevel (0);
expand_start_bindings (0);
}
else
gnu_return_label_stack
= tree_cons (NULL_TREE, NULL_TREE, gnu_return_label_stack);
for (gnat_param = First_Formal (gnat_subprog_id);
Present (gnat_param);
gnat_param = Next_Formal_With_Extras (gnat_param))
if (present_gnu_tree (gnat_param))
adjust_decl_rtl (get_gnu_tree (gnat_param));
else
{
for (; gnu_cico_list != 0 && TREE_VALUE (gnu_cico_list) != 0;
gnu_cico_list = TREE_CHAIN (gnu_cico_list))
;
TREE_VALUE (gnu_cico_list)
= convert (TREE_TYPE (TREE_PURPOSE (gnu_cico_list)),
gnat_to_gnu_entity (gnat_param, NULL_TREE, 1));
}
process_decls (Declarations (gnat_node), Empty, Empty, 1, 1);
gnat_to_code (Handled_Statement_Sequence (gnat_node));
expand_end_bindings (getdecls (), kept_level_p (), 0);
poplevel (kept_level_p (), 1, 0);
gnu_block_stack = TREE_CHAIN (gnu_block_stack);
if (TREE_VALUE (gnu_return_label_stack) != 0)
{
tree gnu_retval;
expand_end_bindings (NULL_TREE, kept_level_p (), 0);
poplevel (kept_level_p (), 1, 0);
expand_label (TREE_VALUE (gnu_return_label_stack));
gnu_cico_list = TYPE_CI_CO_LIST (gnu_subprog_type);
set_lineno (gnat_node, 1);
if (list_length (gnu_cico_list) == 1)
gnu_retval = TREE_VALUE (gnu_cico_list);
else
gnu_retval = build_constructor (TREE_TYPE (gnu_subprog_type),
gnu_cico_list);
if (DECL_P (gnu_retval) && DECL_BY_REF_P (gnu_retval))
gnu_retval
= build_unary_op (INDIRECT_REF, NULL_TREE, gnu_retval);
expand_return
(build_binary_op (MODIFY_EXPR, NULL_TREE,
DECL_RESULT (current_function_decl),
gnu_retval));
}
gnu_return_label_stack = TREE_CHAIN (gnu_return_label_stack);
for (gnat_param = First_Formal (gnat_subprog_id);
Present (gnat_param);
gnat_param = Next_Formal_With_Extras (gnat_param))
if (TREE_CODE (get_gnu_tree (gnat_param)) == VAR_DECL)
save_gnu_tree (gnat_param, NULL_TREE, 0);
end_subprog_body ();
mark_out_of_scope (Defining_Unit_Name (Specification (gnat_node)));
write_symbols = save_write_symbols;
debug_hooks = save_debug_hooks;
}
break;
case N_Function_Call:
case N_Procedure_Call_Statement:
if (type_annotate_only)
break;
{
tree gnu_subprog_node = gnat_to_gnu (Name (gnat_node));
tree gnu_subprog_type = TREE_TYPE (gnu_subprog_node);
tree gnu_subprog_addr
= build_unary_op (ADDR_EXPR, NULL_TREE, gnu_subprog_node);
Entity_Id gnat_formal;
Node_Id gnat_actual;
tree gnu_actual_list = NULL_TREE;
tree gnu_name_list = NULL_TREE;
tree gnu_after_list = NULL_TREE;
tree gnu_subprog_call;
switch (Nkind (Name (gnat_node)))
{
case N_Identifier:
case N_Operator_Symbol:
case N_Expanded_Name:
case N_Attribute_Reference:
if (Is_Eliminated (Entity (Name (gnat_node))))
post_error_ne ("cannot call eliminated subprogram &!",
gnat_node, Entity (Name (gnat_node)));
}
if (TREE_CODE (gnu_subprog_type) != FUNCTION_TYPE)
gigi_abort (317);
if (TREE_CODE (gnu_subprog_node) == FUNCTION_DECL
&& DECL_STUBBED_P (gnu_subprog_node))
{
for (gnat_actual = First_Actual (gnat_node);
Present (gnat_actual);
gnat_actual = Next_Actual (gnat_actual))
expand_expr_stmt (gnat_to_gnu (gnat_actual));
if (Nkind (gnat_node) == N_Function_Call)
{
gnu_result_type = TREE_TYPE (gnu_subprog_type);
gnu_result
= build1 (NULL_EXPR, gnu_result_type,
build_call_raise (PE_Stubbed_Subprogram_Called));
}
else
expand_expr_stmt
(build_call_raise (PE_Stubbed_Subprogram_Called));
break;
}
if (Nkind (Name (gnat_node)) == N_Explicit_Dereference)
gnat_formal = First_Formal (Etype (Name (gnat_node)));
else if (Nkind (Name (gnat_node)) == N_Attribute_Reference)
gnat_formal = 0;
else
gnat_formal = First_Formal (Entity (Name (gnat_node)));
for (gnat_actual = First_Actual (gnat_node);
Present (gnat_actual);
gnat_formal = Next_Formal_With_Extras (gnat_formal),
gnat_actual = Next_Actual (gnat_actual))
{
tree gnu_formal_type = gnat_to_gnu_type (Etype (gnat_formal));
Node_Id gnat_name
= ((Nkind (gnat_actual) == N_Unchecked_Type_Conversion)
? Expression (gnat_actual) : gnat_actual);
tree gnu_name = gnat_to_gnu (gnat_name);
tree gnu_name_type = gnat_to_gnu_type (Etype (gnat_name));
tree gnu_actual;
if (Ekind (gnat_formal) != E_In_Parameter)
{
gnu_name = gnat_stabilize_reference (gnu_name, 1);
if (! addressable_p (gnu_name)
&& present_gnu_tree (gnat_formal)
&& (DECL_BY_REF_P (get_gnu_tree (gnat_formal))
|| DECL_BY_COMPONENT_PTR_P (get_gnu_tree (gnat_formal))
|| DECL_BY_DESCRIPTOR_P (get_gnu_tree (gnat_formal))))
{
tree gnu_copy = gnu_name;
if (TREE_CODE (gnu_name) == COMPONENT_REF
&& (TYPE_IS_PADDING_P
(TREE_TYPE (TREE_OPERAND (gnu_name, 0)))))
gnu_name = gnu_copy = TREE_OPERAND (gnu_name, 0);
else if (TREE_CODE (gnu_name_type) == RECORD_TYPE
&& (TYPE_LEFT_JUSTIFIED_MODULAR_P
(gnu_name_type)))
gnu_name = convert (gnu_name_type, gnu_name);
gnu_actual = save_expr (gnu_name);
gnu_after_list = tree_cons (gnu_copy, gnu_actual,
gnu_after_list);
gnu_name = gnu_actual;
}
}
gnu_actual = gnu_name;
if (Ekind (gnat_formal) != E_Out_Parameter
&& TREE_CODE (TREE_TYPE (gnu_actual)) == RECORD_TYPE
&& TYPE_IS_PADDING_P (TREE_TYPE (gnu_actual)))
gnu_actual = convert (get_unpadded_type (Etype (gnat_actual)),
gnu_actual);
if (Ekind (gnat_formal) != E_Out_Parameter
&& Nkind (gnat_actual) != N_Unchecked_Type_Conversion
&& Do_Range_Check (gnat_actual))
gnu_actual = emit_range_check (gnu_actual, Etype (gnat_formal));
if (Nkind (gnat_actual) == N_Unchecked_Type_Conversion)
{
gnu_actual
= unchecked_convert (gnat_to_gnu_type (Etype (gnat_actual)),
gnu_actual);
if (Ekind (gnat_formal) != E_Out_Parameter
&& Do_Range_Check (gnat_actual))
gnu_actual = emit_range_check (gnu_actual,
Etype (gnat_formal));
}
else
gnu_actual = convert (gnat_to_gnu_type (Etype (gnat_actual)),
gnu_actual);
gnu_actual = convert (gnu_formal_type, gnu_actual);
if (present_gnu_tree (gnat_formal)
&& TREE_CODE (get_gnu_tree (gnat_formal)) == PARM_DECL
&& DECL_BY_REF_P (get_gnu_tree (gnat_formal)))
{
if (Ekind (gnat_formal) != E_In_Parameter)
{
gnu_actual = gnu_name;
if (TREE_CODE (TREE_TYPE (gnu_actual)) == RECORD_TYPE
&& TYPE_IS_PADDING_P (TREE_TYPE (gnu_actual)))
gnu_actual
= convert (get_unpadded_type (Etype (gnat_actual)),
gnu_actual);
}
gnu_formal_type = TREE_TYPE (get_gnu_tree (gnat_formal));
gnu_actual = build_unary_op (ADDR_EXPR, gnu_formal_type,
gnu_actual);
}
else if (present_gnu_tree (gnat_formal)
&& TREE_CODE (get_gnu_tree (gnat_formal)) == PARM_DECL
&& DECL_BY_COMPONENT_PTR_P (get_gnu_tree (gnat_formal)))
{
gnu_formal_type = TREE_TYPE (get_gnu_tree (gnat_formal));
gnu_actual = maybe_implicit_deref (gnu_actual);
gnu_actual = maybe_unconstrained_array (gnu_actual);
if (TREE_CODE (gnu_formal_type) == RECORD_TYPE
&& TYPE_IS_PADDING_P (gnu_formal_type))
{
gnu_formal_type
= TREE_TYPE (TYPE_FIELDS (gnu_formal_type));
gnu_actual = convert (gnu_formal_type, gnu_actual);
}
gnu_actual = convert (gnu_formal_type,
build_unary_op (ADDR_EXPR, NULL_TREE,
gnu_actual));
}
else if (present_gnu_tree (gnat_formal)
&& TREE_CODE (get_gnu_tree (gnat_formal)) == PARM_DECL
&& DECL_BY_DESCRIPTOR_P (get_gnu_tree (gnat_formal)))
{
if ((TREE_CODE (gnu_actual) == INDIRECT_REF
|| TREE_CODE (gnu_actual) == UNCONSTRAINED_ARRAY_REF)
&& TREE_PRIVATE (gnu_actual))
gnu_actual
= convert (DECL_ARG_TYPE (get_gnu_tree (gnat_formal)),
integer_zero_node);
else
gnu_actual
= build_unary_op (ADDR_EXPR, NULL_TREE,
fill_vms_descriptor (gnu_actual,
gnat_formal));
}
else
{
tree gnu_actual_size = TYPE_SIZE (TREE_TYPE (gnu_actual));
if (Ekind (gnat_formal) != E_In_Parameter)
gnu_name_list
= chainon (gnu_name_list,
build_tree_list (NULL_TREE, gnu_name));
if (! present_gnu_tree (gnat_formal)
|| TREE_CODE (get_gnu_tree (gnat_formal)) != PARM_DECL)
continue;
else if (TREE_CODE (gnu_actual) == INDIRECT_REF
&& TREE_PRIVATE (gnu_actual)
&& host_integerp (gnu_actual_size, 1)
&& 0 >= compare_tree_int (gnu_actual_size,
BITS_PER_WORD))
gnu_actual
= unchecked_convert
(DECL_ARG_TYPE (get_gnu_tree (gnat_formal)),
convert (gnat_type_for_size
(tree_low_cst (gnu_actual_size, 1), 1),
integer_zero_node));
else
gnu_actual
= convert (TYPE_MAIN_VARIANT
(DECL_ARG_TYPE (get_gnu_tree (gnat_formal))),
gnu_actual);
}
gnu_actual_list
= chainon (gnu_actual_list,
build_tree_list (NULL_TREE, gnu_actual));
}
gnu_subprog_call = build (CALL_EXPR, TREE_TYPE (gnu_subprog_type),
gnu_subprog_addr, gnu_actual_list,
NULL_TREE);
TREE_SIDE_EFFECTS (gnu_subprog_call) = 1;
if (Nkind (gnat_node) == N_Function_Call)
{
gnu_result = gnu_subprog_call;
if (TYPE_RETURNS_UNCONSTRAINED_P (gnu_subprog_type)
|| TYPE_RETURNS_BY_REF_P (gnu_subprog_type))
gnu_result = build_unary_op (INDIRECT_REF, NULL_TREE,
gnu_result);
gnu_result_type = get_unpadded_type (Etype (gnat_node));
}
else if (TYPE_CI_CO_LIST (gnu_subprog_type) != NULL_TREE)
{
tree scalar_return_list = TYPE_CI_CO_LIST (gnu_subprog_type);
int length = list_length (scalar_return_list);
if (length > 1)
{
tree gnu_name;
gnu_subprog_call = protect_multiple_eval (gnu_subprog_call);
for (gnu_name = gnu_name_list; gnu_name;
gnu_name = TREE_CHAIN (gnu_name))
if (TREE_SIDE_EFFECTS (TREE_VALUE (gnu_name)))
gnu_subprog_call
= build (COMPOUND_EXPR, TREE_TYPE (gnu_subprog_call),
TREE_VALUE (gnu_name), gnu_subprog_call);
}
if (Nkind (Name (gnat_node)) == N_Explicit_Dereference)
gnat_formal = First_Formal (Etype (Name (gnat_node)));
else
gnat_formal = First_Formal (Entity (Name (gnat_node)));
for (gnat_actual = First_Actual (gnat_node);
Present (gnat_actual);
gnat_formal = Next_Formal_With_Extras (gnat_formal),
gnat_actual = Next_Actual (gnat_actual))
if (! (present_gnu_tree (gnat_formal)
&& TREE_CODE (get_gnu_tree (gnat_formal)) == PARM_DECL
&& (DECL_BY_REF_P (get_gnu_tree (gnat_formal))
|| (DECL_BY_COMPONENT_PTR_P
(get_gnu_tree (gnat_formal)))
|| DECL_BY_DESCRIPTOR_P (get_gnu_tree (gnat_formal))))
&& Ekind (gnat_formal) != E_In_Parameter)
{
tree gnu_result
= length == 1 ? gnu_subprog_call
: build_component_ref
(gnu_subprog_call, NULL_TREE,
TREE_PURPOSE (scalar_return_list));
int unchecked_conversion
= Nkind (gnat_actual) == N_Unchecked_Type_Conversion;
tree gnu_actual
= maybe_unconstrained_array (TREE_VALUE (gnu_name_list));
if (TREE_CODE (TREE_TYPE (gnu_result)) == RECORD_TYPE
&& TYPE_IS_PADDING_P (TREE_TYPE (gnu_result)))
gnu_result
= convert (TREE_TYPE (TYPE_FIELDS
(TREE_TYPE (gnu_result))),
gnu_result);
if (Nkind (gnat_actual) == N_Type_Conversion)
gnu_result
= convert_with_check
(Etype (Expression (gnat_actual)), gnu_result,
Do_Overflow_Check (gnat_actual),
Do_Range_Check (Expression (gnat_actual)),
Float_Truncate (gnat_actual));
else if (unchecked_conversion)
gnu_result
= unchecked_convert (TREE_TYPE (gnu_actual), gnu_result);
else
{
if (Do_Range_Check (gnat_actual))
gnu_result = emit_range_check (gnu_result,
Etype (gnat_actual));
if (! (! TREE_CONSTANT (TYPE_SIZE
(TREE_TYPE (gnu_actual)))
&& TREE_CONSTANT (TYPE_SIZE
(TREE_TYPE (gnu_result)))))
gnu_result = convert (TREE_TYPE (gnu_actual),
gnu_result);
}
set_lineno (gnat_node, 1);
expand_expr_stmt (build_binary_op (MODIFY_EXPR, NULL_TREE,
gnu_actual, gnu_result));
scalar_return_list = TREE_CHAIN (scalar_return_list);
gnu_name_list = TREE_CHAIN (gnu_name_list);
}
}
else
{
set_lineno (gnat_node, 1);
expand_expr_stmt (gnu_subprog_call);
}
for (gnu_expr = gnu_after_list;
gnu_expr;
gnu_expr = TREE_CHAIN (gnu_expr))
expand_expr_stmt (build_binary_op (MODIFY_EXPR, NULL_TREE,
TREE_PURPOSE (gnu_expr),
TREE_VALUE (gnu_expr)));
}
break;
case N_Package_Declaration:
gnat_to_code (Specification (gnat_node));
break;
case N_Package_Specification:
process_decls (Visible_Declarations (gnat_node),
Private_Declarations (gnat_node), Empty, 1, 1);
break;
case N_Package_Body:
if (Ekind (Corresponding_Spec (gnat_node)) == E_Generic_Package)
break;
process_decls (Declarations (gnat_node), Empty, Empty, 1, 1);
if (Present (Handled_Statement_Sequence (gnat_node)))
{
gnu_block_stack = tree_cons (NULL_TREE, NULL_TREE, gnu_block_stack);
gnat_to_code (Handled_Statement_Sequence (gnat_node));
gnu_block_stack = TREE_CHAIN (gnu_block_stack);
}
break;
case N_Use_Package_Clause:
case N_Use_Type_Clause:
break;
case N_Protected_Type_Declaration:
break;
case N_Single_Task_Declaration:
gnat_to_gnu_entity (Defining_Entity (gnat_node), NULL_TREE, 1);
break;
case N_Compilation_Unit:
if (Nkind (Unit (gnat_node)) == N_Package_Body
|| (Nkind (Unit (gnat_node)) == N_Subprogram_Body
&& ! Acts_As_Spec (gnat_node)))
gnat_to_code (Library_Unit (gnat_node));
process_inlined_subprograms (gnat_node);
if (type_annotate_only && gnat_node == Cunit (Main_Unit))
{
elaborate_all_entities (gnat_node);
if (Nkind (Unit (gnat_node)) == N_Subprogram_Declaration
|| Nkind (Unit (gnat_node)) == N_Generic_Package_Declaration
|| Nkind (Unit (gnat_node)) == N_Generic_Subprogram_Declaration)
break;
};
process_decls (Declarations (Aux_Decls_Node (gnat_node)),
Empty, Empty, 1, 1);
gnat_to_code (Unit (gnat_node));
if (Present (Pragmas_After (Aux_Decls_Node (gnat_node))))
for (gnat_temp = First (Pragmas_After (Aux_Decls_Node (gnat_node)));
gnat_temp; gnat_temp = Next (gnat_temp))
gnat_to_code (gnat_temp);
if (Is_Non_Empty_List (Actions (Aux_Decls_Node (gnat_node))))
for (gnat_temp = First (Actions (Aux_Decls_Node (gnat_node)));
Present (gnat_temp); gnat_temp = Next (gnat_temp))
{
if (pending_elaborations_p ())
add_pending_elaborations (NULL_TREE,
make_transform_expr (gnat_temp));
else
gnat_to_code (gnat_temp);
}
Set_Has_No_Elaboration_Code
(gnat_node,
build_unit_elab
(Defining_Entity (Unit (gnat_node)),
Nkind (Unit (gnat_node)) == N_Package_Body
|| Nkind (Unit (gnat_node)) == N_Subprogram_Body,
get_pending_elaborations ()));
break;
case N_Subprogram_Body_Stub:
case N_Package_Body_Stub:
case N_Protected_Body_Stub:
case N_Task_Body_Stub:
gnat_to_code (Unit (Library_Unit (gnat_node)));
break;
case N_Subunit:
gnat_to_code (Proper_Body (gnat_node));
break;
case N_Handled_Sequence_Of_Statements:
if (! type_annotate_only
&& Exception_Mechanism == GCC_ZCX
&& Present (Exception_Handlers (gnat_node)))
expand_eh_region_start ();
if (! type_annotate_only && Present (Exception_Handlers (gnat_node)))
{
tree gnu_jmpsave_decl = 0;
tree gnu_jmpbuf_decl = 0;
tree gnu_cleanup_call = 0;
tree gnu_cleanup_decl;
pushlevel (0);
expand_start_bindings (1);
if (Exception_Mechanism == Setjmp_Longjmp)
{
gnu_jmpsave_decl
= create_var_decl (get_identifier ("JMPBUF_SAVE"), NULL_TREE,
jmpbuf_ptr_type,
build_call_0_expr (get_jmpbuf_decl),
0, 0, 0, 0, 0);
gnu_jmpbuf_decl = create_var_decl (get_identifier ("JMP_BUF"),
NULL_TREE, jmpbuf_type,
NULL_TREE, 0, 0, 0, 0,
0);
TREE_VALUE (gnu_block_stack) = gnu_jmpbuf_decl;
}
if (Present (At_End_Proc (gnat_node)))
{
gnu_cleanup_call
= build_call_0_expr (gnat_to_gnu (At_End_Proc (gnat_node)));
gnu_cleanup_decl
= create_var_decl (get_identifier ("CLEANUP"), NULL_TREE,
integer_type_node, NULL_TREE, 0, 0, 0, 0,
0);
expand_decl_cleanup (gnu_cleanup_decl, gnu_cleanup_call);
}
if (Exception_Mechanism == Setjmp_Longjmp)
{
expand_decl_cleanup (gnu_jmpsave_decl,
build_call_1_expr (set_jmpbuf_decl,
gnu_jmpsave_decl));
set_lineno (gnat_node, 1);
expand_start_cond
(build_call_1_expr (setjmp_decl,
build_unary_op (ADDR_EXPR, NULL_TREE,
gnu_jmpbuf_decl)),
0);
expand_expr_stmt (build_call_1_expr (set_jmpbuf_decl,
gnu_jmpsave_decl));
pushlevel (0);
expand_start_bindings (0);
gnu_except_ptr_stack
= tree_cons (NULL_TREE,
create_var_decl
(get_identifier ("EXCEPT_PTR"), NULL_TREE,
build_pointer_type (except_type_node),
build_call_0_expr (get_excptr_decl),
0, 0, 0, 0, 0),
gnu_except_ptr_stack);
if (Present (Exception_Handlers (gnat_node)))
for (gnat_temp
= First_Non_Pragma (Exception_Handlers (gnat_node));
Present (gnat_temp);
gnat_temp = Next_Non_Pragma (gnat_temp))
gnat_to_code (gnat_temp);
set_lineno (gnat_node, 1);
expand_expr_stmt
(build_call_1_expr (raise_nodefer_decl,
TREE_VALUE (gnu_except_ptr_stack)));
gnu_except_ptr_stack = TREE_CHAIN (gnu_except_ptr_stack);
expand_end_bindings (getdecls (), kept_level_p (), 0);
poplevel (kept_level_p (), 1, 0);
expand_end_cond ();
expand_expr_stmt
(build_call_1_expr (set_jmpbuf_decl,
build_unary_op (ADDR_EXPR, NULL_TREE,
gnu_jmpbuf_decl)));
}
}
else if (! type_annotate_only && Present (At_End_Proc (gnat_node)))
{
if (No_Exception_Handlers_Set ())
{
tree gnu_cleanup_call = 0;
tree gnu_cleanup_decl;
gnu_cleanup_call
= build_call_0_expr (gnat_to_gnu (At_End_Proc (gnat_node)));
gnu_cleanup_decl
= create_var_decl (get_identifier ("CLEANUP"), NULL_TREE,
integer_type_node, NULL_TREE, 0, 0, 0, 0,
0);
expand_decl_cleanup (gnu_cleanup_decl, gnu_cleanup_call);
}
else
gigi_abort (335);
}
if (Present (First_Real_Statement (gnat_node)))
process_decls (Statements (gnat_node), Empty,
First_Real_Statement (gnat_node), 1, 1);
for (gnat_temp = (Present (First_Real_Statement (gnat_node))
? First_Real_Statement (gnat_node)
: First (Statements (gnat_node)));
Present (gnat_temp); gnat_temp = Next (gnat_temp))
gnat_to_code (gnat_temp);
if (! type_annotate_only
&& Exception_Mechanism == GCC_ZCX
&& Present (Exception_Handlers (gnat_node)))
expand_start_all_catch ();
if (! type_annotate_only
&& Exception_Mechanism == GCC_ZCX
&& Present (Exception_Handlers (gnat_node)))
{
expand_exit_something ();
for (gnat_temp = First_Non_Pragma (Exception_Handlers (gnat_node));
Present (gnat_temp);
gnat_temp = Next_Non_Pragma (gnat_temp))
gnat_to_code (gnat_temp);
}
if (! type_annotate_only
&& Exception_Mechanism == Front_End_ZCX
&& Present (Exception_Handlers (gnat_node)))
{
for (gnat_temp = First_Non_Pragma (Exception_Handlers (gnat_node));
Present (gnat_temp);
gnat_temp = Next_Non_Pragma (gnat_temp))
gnat_to_code (gnat_temp);
}
if (! type_annotate_only
&& Exception_Mechanism == GCC_ZCX
&& Present (Exception_Handlers (gnat_node)))
expand_end_all_catch ();
if (! type_annotate_only && Present (Exception_Handlers (gnat_node)))
{
expand_end_bindings (getdecls (), kept_level_p (), 0);
poplevel (kept_level_p (), 1, 0);
}
break;
case N_Exception_Handler:
if (Exception_Mechanism == Setjmp_Longjmp)
{
tree gnu_choice = integer_zero_node;
for (gnat_temp = First (Exception_Choices (gnat_node));
gnat_temp; gnat_temp = Next (gnat_temp))
{
tree this_choice;
if (Nkind (gnat_temp) == N_Others_Choice)
{
if (All_Others (gnat_temp))
this_choice = integer_one_node;
else
this_choice
= build_binary_op
(EQ_EXPR, integer_type_node,
convert
(integer_type_node,
build_component_ref
(build_unary_op
(INDIRECT_REF, NULL_TREE,
TREE_VALUE (gnu_except_ptr_stack)),
get_identifier ("not_handled_by_others"), NULL_TREE)),
integer_zero_node);
}
else if (Nkind (gnat_temp) == N_Identifier
|| Nkind (gnat_temp) == N_Expanded_Name)
{
gnu_expr
= gnat_to_gnu_entity (Entity (gnat_temp), NULL_TREE, 0);
if (TREE_CODE (TREE_TYPE (gnu_expr)) == INTEGER_TYPE)
this_choice
= build_binary_op
(EQ_EXPR, integer_type_node,
build_component_ref
(build_unary_op
(INDIRECT_REF, NULL_TREE,
TREE_VALUE (gnu_except_ptr_stack)),
get_identifier ("import_code"), NULL_TREE),
gnu_expr);
else
this_choice
= build_binary_op
(EQ_EXPR, integer_type_node,
TREE_VALUE (gnu_except_ptr_stack),
convert
(TREE_TYPE (TREE_VALUE (gnu_except_ptr_stack)),
build_unary_op (ADDR_EXPR, NULL_TREE, gnu_expr)));
if (Is_Non_Ada_Error (Entity (gnat_temp)))
{
tree gnu_comp
= build_component_ref
(build_unary_op
(INDIRECT_REF, NULL_TREE,
TREE_VALUE (gnu_except_ptr_stack)),
get_identifier ("lang"), NULL_TREE);
this_choice
= build_binary_op
(TRUTH_ORIF_EXPR, integer_type_node,
build_binary_op
(EQ_EXPR, integer_type_node, gnu_comp,
convert (TREE_TYPE (gnu_comp),
build_int_2 ('V', 0))),
this_choice);
}
}
else
gigi_abort (318);
gnu_choice = build_binary_op (TRUTH_ORIF_EXPR, integer_type_node,
gnu_choice, this_choice);
}
set_lineno (gnat_node, 1);
expand_start_cond (gnu_choice, 0);
}
if (Exception_Mechanism == GCC_ZCX)
{
tree gnu_expr, gnu_etype;
tree gnu_etypes_list = NULL_TREE;
for (gnat_temp = First (Exception_Choices (gnat_node));
gnat_temp; gnat_temp = Next (gnat_temp))
{
if (Nkind (gnat_temp) == N_Others_Choice)
gnu_etype
= All_Others (gnat_temp) ? integer_one_node
: integer_zero_node;
else if (Nkind (gnat_temp) == N_Identifier
|| Nkind (gnat_temp) == N_Expanded_Name)
{
gnu_expr = gnat_to_gnu_entity (Entity (gnat_temp),
NULL_TREE, 0);
gnu_etype = build_unary_op (ADDR_EXPR, NULL_TREE, gnu_expr);
}
else
gigi_abort (337);
gnu_etypes_list
= tree_cons (NULL_TREE, gnu_etype, gnu_etypes_list);
}
expand_start_catch (gnu_etypes_list);
}
for (gnat_temp = First (Statements (gnat_node));
gnat_temp; gnat_temp = Next (gnat_temp))
gnat_to_code (gnat_temp);
expand_exit_something ();
if (Exception_Mechanism == GCC_ZCX)
expand_end_catch ();
else if (Exception_Mechanism == Setjmp_Longjmp)
expand_end_cond ();
break;
case N_Generic_Function_Renaming_Declaration:
case N_Generic_Package_Renaming_Declaration:
case N_Generic_Procedure_Renaming_Declaration:
case N_Generic_Package_Declaration:
case N_Generic_Subprogram_Declaration:
case N_Package_Instantiation:
case N_Procedure_Instantiation:
case N_Function_Instantiation:
break;
case N_Attribute_Definition_Clause:
if (Get_Attribute_Id (Chars (gnat_node)) != Attr_Address
|| No (Freeze_Node (Entity (Name (gnat_node)))))
break;
gnu_expr = gnat_to_gnu (Expression (gnat_node));
save_gnu_tree (Entity (Name (gnat_node)), gnu_expr, 1);
break;
case N_Enumeration_Representation_Clause:
case N_Record_Representation_Clause:
case N_At_Clause:
break;
case N_Code_Statement:
if (! type_annotate_only)
{
tree gnu_template = gnat_to_gnu (Asm_Template (gnat_node));
tree gnu_input_list = 0, gnu_output_list = 0, gnu_orig_out_list = 0;
tree gnu_clobber_list = 0;
char *clobber;
Setup_Asm_Inputs (gnat_node);
while (Present (gnat_temp = Asm_Input_Value ()))
{
tree gnu_value = gnat_to_gnu (gnat_temp);
tree gnu_constr = build_tree_list (NULL_TREE, gnat_to_gnu
(Asm_Input_Constraint ()));
gnu_input_list
= tree_cons (gnu_constr, gnu_value, gnu_input_list);
Next_Asm_Input ();
}
Setup_Asm_Outputs (gnat_node);
while (Present (gnat_temp = Asm_Output_Variable ()))
{
tree gnu_value = gnat_to_gnu (gnat_temp);
tree gnu_constr = build_tree_list (NULL_TREE, gnat_to_gnu
(Asm_Output_Constraint ()));
gnu_orig_out_list
= tree_cons (gnu_constr, gnu_value, gnu_orig_out_list);
gnu_output_list
= tree_cons (gnu_constr, gnu_value, gnu_output_list);
Next_Asm_Output ();
}
Clobber_Setup (gnat_node);
while ((clobber = Clobber_Get_Next ()) != 0)
gnu_clobber_list
= tree_cons (NULL_TREE,
build_string (strlen (clobber) + 1, clobber),
gnu_clobber_list);
gnu_input_list = nreverse (gnu_input_list);
gnu_output_list = nreverse (gnu_output_list);
gnu_orig_out_list = nreverse (gnu_orig_out_list);
expand_asm_operands (gnu_template, gnu_output_list, gnu_input_list,
gnu_clobber_list, Is_Asm_Volatile (gnat_node),
input_filename, lineno);
for (; gnu_output_list;
(gnu_output_list = TREE_CHAIN (gnu_output_list),
gnu_orig_out_list = TREE_CHAIN (gnu_orig_out_list)))
if (TREE_VALUE (gnu_orig_out_list) != TREE_VALUE (gnu_output_list))
{
expand_expr_stmt
(build_binary_op (MODIFY_EXPR, NULL_TREE,
TREE_VALUE (gnu_orig_out_list),
TREE_VALUE (gnu_output_list)));
free_temp_slots ();
}
}
break;
case N_Freeze_Entity:
process_freeze_entity (gnat_node);
process_decls (Actions (gnat_node), Empty, Empty, 1, 1);
break;
case N_Itype_Reference:
if (! present_gnu_tree (Itype (gnat_node)))
process_type (Itype (gnat_node));
break;
case N_Free_Statement:
if (! type_annotate_only)
{
tree gnu_ptr = gnat_to_gnu (Expression (gnat_node));
tree gnu_obj_type;
tree gnu_obj_size;
int align;
if (TYPE_FAT_POINTER_P (TREE_TYPE (gnu_ptr)))
gnu_ptr
= convert (build_pointer_type
(TYPE_OBJECT_RECORD_TYPE
(TYPE_UNCONSTRAINED_ARRAY (TREE_TYPE (gnu_ptr)))),
gnu_ptr);
gnu_obj_type = TREE_TYPE (TREE_TYPE (gnu_ptr));
gnu_obj_size = TYPE_SIZE_UNIT (gnu_obj_type);
align = TYPE_ALIGN (gnu_obj_type);
if (TREE_CODE (gnu_obj_type) == RECORD_TYPE
&& TYPE_CONTAINS_TEMPLATE_P (gnu_obj_type))
{
tree gnu_char_ptr_type = build_pointer_type (char_type_node);
tree gnu_pos = byte_position (TYPE_FIELDS (gnu_obj_type));
tree gnu_byte_offset
= convert (gnu_char_ptr_type,
size_diffop (size_zero_node, gnu_pos));
gnu_ptr = convert (gnu_char_ptr_type, gnu_ptr);
gnu_ptr = build_binary_op (MINUS_EXPR, gnu_char_ptr_type,
gnu_ptr, gnu_byte_offset);
}
set_lineno (gnat_node, 1);
expand_expr_stmt
(build_call_alloc_dealloc (gnu_ptr, gnu_obj_size, align,
Procedure_To_Call (gnat_node),
Storage_Pool (gnat_node)));
}
break;
case N_Raise_Constraint_Error:
case N_Raise_Program_Error:
case N_Raise_Storage_Error:
if (type_annotate_only)
break;
gnu_result_type = get_unpadded_type (Etype (gnat_node));
gnu_result = build_call_raise (UI_To_Int (Reason (gnat_node)));
if (TREE_CODE (gnu_result_type) == VOID_TYPE)
{
set_lineno (gnat_node, 1);
if (Present (Condition (gnat_node)))
expand_start_cond (gnat_to_gnu (Condition (gnat_node)), 0);
expand_expr_stmt (gnu_result);
if (Present (Condition (gnat_node)))
expand_end_cond ();
gnu_result = error_mark_node;
}
else
gnu_result = build1 (NULL_EXPR, gnu_result_type, gnu_result);
break;
case N_Validate_Unchecked_Conversion:
break;
case N_Raise_Statement:
case N_Function_Specification:
case N_Procedure_Specification:
case N_Op_Concat:
case N_Component_Association:
case N_Task_Body:
default:
if (! type_annotate_only)
gigi_abort (321);
}
if (TREE_CODE (gnu_result) == INTEGER_CST
&& TREE_CONSTANT_OVERFLOW (gnu_result))
{
post_error ("Constraint_Error will be raised at run-time?", gnat_node);
gnu_result
= build1 (NULL_EXPR, gnu_result_type,
build_call_raise (CE_Overflow_Check_Failed));
}
if (TREE_SIDE_EFFECTS (gnu_result)
&& (TREE_CODE (gnu_result_type) == UNCONSTRAINED_ARRAY_TYPE
|| (TREE_CODE (TYPE_SIZE (gnu_result_type)) != INTEGER_CST
&& contains_placeholder_p (TYPE_SIZE (gnu_result_type)))))
gnu_result = gnat_stabilize_reference (gnu_result, 0);
if (Present (Parent (gnat_node))
&& ((Nkind (Parent (gnat_node)) == N_Assignment_Statement
&& Name (Parent (gnat_node)) == gnat_node)
|| (Nkind (Parent (gnat_node)) == N_Procedure_Call_Statement
&& Name (Parent (gnat_node)) != gnat_node)
|| (Nkind (Parent (gnat_node)) == N_Unchecked_Type_Conversion
&& ! AGGREGATE_TYPE_P (gnu_result_type)
&& ! AGGREGATE_TYPE_P (TREE_TYPE (gnu_result)))
|| Nkind (Parent (gnat_node)) == N_Parameter_Association)
&& ! (TYPE_SIZE (gnu_result_type) != 0
&& TYPE_SIZE (TREE_TYPE (gnu_result)) != 0
&& (AGGREGATE_TYPE_P (gnu_result_type)
== AGGREGATE_TYPE_P (TREE_TYPE (gnu_result)))
&& ((TREE_CODE (TYPE_SIZE (gnu_result_type)) == INTEGER_CST
&& (TREE_CODE (TYPE_SIZE (TREE_TYPE (gnu_result)))
!= INTEGER_CST))
|| (TREE_CODE (TYPE_SIZE (gnu_result_type)) != INTEGER_CST
&& (TREE_CODE (TYPE_SIZE (TREE_TYPE (gnu_result)))
!= INTEGER_CST)
&& ! (contains_placeholder_p (TYPE_SIZE (gnu_result_type)))
&& (contains_placeholder_p
(TYPE_SIZE (TREE_TYPE (gnu_result))))))
&& ! (TREE_CODE (gnu_result_type) == RECORD_TYPE
&& TYPE_LEFT_JUSTIFIED_MODULAR_P (gnu_result_type))))
{
if (TREE_CODE (TREE_TYPE (gnu_result)) == RECORD_TYPE
&& TYPE_IS_PADDING_P (TREE_TYPE (gnu_result))
&& contains_placeholder_p (TYPE_SIZE
(TREE_TYPE (TYPE_FIELDS
(TREE_TYPE (gnu_result))))))
gnu_result = convert (TREE_TYPE (TYPE_FIELDS (TREE_TYPE (gnu_result))),
gnu_result);
}
else if (TREE_CODE (gnu_result) == LABEL_DECL
|| TREE_CODE (gnu_result) == FIELD_DECL
|| TREE_CODE (gnu_result) == ERROR_MARK
|| (TYPE_SIZE (gnu_result_type) != 0
&& TREE_CODE (TYPE_SIZE (gnu_result_type)) != INTEGER_CST
&& TREE_CODE (gnu_result) != INDIRECT_REF
&& contains_placeholder_p (TYPE_SIZE (gnu_result_type)))
|| ((TYPE_NAME (gnu_result_type)
== TYPE_NAME (TREE_TYPE (gnu_result)))
&& TREE_CODE (gnu_result_type) == RECORD_TYPE
&& TREE_CODE (TREE_TYPE (gnu_result)) == RECORD_TYPE
&& TYPE_MODE (gnu_result_type) == BLKmode
&& (GET_MODE_CLASS (TYPE_MODE (TREE_TYPE (gnu_result)))
== MODE_INT)))
{
if (TREE_CODE (TREE_TYPE (gnu_result)) == RECORD_TYPE
&& TYPE_IS_PADDING_P (TREE_TYPE (gnu_result)))
gnu_result = convert (TREE_TYPE (TYPE_FIELDS (TREE_TYPE (gnu_result))),
gnu_result);
}
else if (gnu_result == error_mark_node
|| gnu_result_type == void_type_node)
gnu_result = error_mark_node;
else if (gnu_result_type != TREE_TYPE (gnu_result))
gnu_result = convert (gnu_result_type, gnu_result);
while ((TREE_CODE (gnu_result) == NOP_EXPR
|| TREE_CODE (gnu_result) == NON_LVALUE_EXPR)
&& TREE_TYPE (TREE_OPERAND (gnu_result, 0)) == TREE_TYPE (gnu_result))
gnu_result = TREE_OPERAND (gnu_result, 0);
return gnu_result;
}
static void
elaborate_all_entities (gnat_node)
Node_Id gnat_node;
{
Entity_Id gnat_with_clause, gnat_entity;
save_gnu_tree (gnat_node, integer_zero_node, 1);
for (gnat_with_clause = First (Context_Items (gnat_node));
Present (gnat_with_clause);
gnat_with_clause = Next (gnat_with_clause))
if (Nkind (gnat_with_clause) == N_With_Clause
&& ! present_gnu_tree (Library_Unit (gnat_with_clause))
&& Library_Unit (gnat_with_clause) != Library_Unit (Cunit (Main_Unit)))
{
elaborate_all_entities (Library_Unit (gnat_with_clause));
if (Ekind (Entity (Name (gnat_with_clause))) == E_Package)
for (gnat_entity = First_Entity (Entity (Name (gnat_with_clause)));
Present (gnat_entity);
gnat_entity = Next_Entity (gnat_entity))
if (Is_Public (gnat_entity)
&& Convention (gnat_entity) != Convention_Intrinsic
&& Ekind (gnat_entity) != E_Package
&& Ekind (gnat_entity) != E_Package_Body
&& Ekind (gnat_entity) != E_Operator
&& ! (IN (Ekind (gnat_entity), Type_Kind)
&& ! Is_Frozen (gnat_entity))
&& ! ((Ekind (gnat_entity) == E_Procedure
|| Ekind (gnat_entity) == E_Function)
&& Is_Intrinsic_Subprogram (gnat_entity))
&& ! IN (Ekind (gnat_entity), Named_Kind)
&& ! IN (Ekind (gnat_entity), Generic_Unit_Kind))
gnat_to_gnu_entity (gnat_entity, NULL_TREE, 0);
}
if (Nkind (Unit (gnat_node)) == N_Package_Body && type_annotate_only)
elaborate_all_entities (Library_Unit (gnat_node));
}
static void
process_freeze_entity (gnat_node)
Node_Id gnat_node;
{
Entity_Id gnat_entity = Entity (gnat_node);
tree gnu_old;
tree gnu_new;
tree gnu_init
= (Nkind (Declaration_Node (gnat_entity)) == N_Object_Declaration
&& present_gnu_tree (Declaration_Node (gnat_entity)))
? get_gnu_tree (Declaration_Node (gnat_entity)) : NULL_TREE;
if (Ekind (gnat_entity) == E_Package)
{
insert_code_for
(Parent (Corresponding_Body
(Parent (Declaration_Node (gnat_entity)))));
return;
}
gnu_old
= present_gnu_tree (gnat_entity) ? get_gnu_tree (gnat_entity) : 0;
if (Present (Address_Clause (gnat_entity)))
gnu_old = 0;
if (Ekind (gnat_entity) == E_Class_Wide_Type
|| (Ekind (gnat_entity) == E_Class_Wide_Subtype
&& Present (Equivalent_Type (gnat_entity))))
return;
if (gnu_old != 0
&& TREE_CODE (gnu_old) == FUNCTION_DECL
&& (Ekind (gnat_entity) == E_Function
|| Ekind (gnat_entity) == E_Procedure))
return;
if (gnu_old != 0
&& ! (TREE_CODE (gnu_old) == TYPE_DECL
&& TYPE_IS_DUMMY_P (TREE_TYPE (gnu_old))))
{
if (IN (Ekind (gnat_entity), Incomplete_Or_Private_Kind)
&& Present (Full_View (gnat_entity))
&& No (Freeze_Node (Full_View (gnat_entity))))
return;
else if (Is_Concurrent_Type (gnat_entity))
return;
else
gigi_abort (320);
}
if (gnu_old != 0)
{
save_gnu_tree (gnat_entity, NULL_TREE, 0);
if (IN (Ekind (gnat_entity), Incomplete_Or_Private_Kind)
&& Present (Full_View (gnat_entity))
&& present_gnu_tree (Full_View (gnat_entity)))
save_gnu_tree (Full_View (gnat_entity), NULL_TREE, 0);
if (Present (Class_Wide_Type (gnat_entity))
&& Class_Wide_Type (gnat_entity) != gnat_entity)
save_gnu_tree (Class_Wide_Type (gnat_entity), NULL_TREE, 0);
}
if (IN (Ekind (gnat_entity), Incomplete_Or_Private_Kind)
&& Present (Full_View (gnat_entity)))
{
gnu_new = gnat_to_gnu_entity (Full_View (gnat_entity), NULL_TREE, 1);
if (! present_gnu_tree (gnat_entity))
save_gnu_tree (gnat_entity, gnu_new, 0);
if (Present (Class_Wide_Type (gnat_entity))
&& Class_Wide_Type (gnat_entity) != gnat_entity)
save_gnu_tree (Class_Wide_Type (gnat_entity), gnu_new, 0);
}
else
gnu_new = gnat_to_gnu_entity (gnat_entity, gnu_init, 1);
if (gnu_old != 0)
update_pointer_to (TYPE_MAIN_VARIANT (TREE_TYPE (gnu_old)),
TREE_TYPE (gnu_new));
}
static void
process_inlined_subprograms (gnat_node)
Node_Id gnat_node;
{
Entity_Id gnat_entity;
Node_Id gnat_body;
if (optimize > 0 && ! flag_no_inline)
for (gnat_entity = First_Inlined_Subprogram (gnat_node);
Present (gnat_entity);
gnat_entity = Next_Inlined_Subprogram (gnat_entity))
{
gnat_body = Parent (Declaration_Node (gnat_entity));
if (Nkind (gnat_body) != N_Subprogram_Body)
{
if (No (Corresponding_Body (gnat_body)))
continue;
gnat_body
= Parent (Declaration_Node (Corresponding_Body (gnat_body)));
}
if (Present (gnat_body))
{
gnat_to_gnu_entity (gnat_entity, NULL_TREE, 0);
gnat_to_code (gnat_body);
}
}
}
static void
process_decls (gnat_decls, gnat_decls2, gnat_end_list, pass1p, pass2p)
List_Id gnat_decls, gnat_decls2;
Node_Id gnat_end_list;
int pass1p, pass2p;
{
List_Id gnat_decl_array[2];
Node_Id gnat_decl;
int i;
gnat_decl_array[0] = gnat_decls, gnat_decl_array[1] = gnat_decls2;
if (pass1p)
for (i = 0; i <= 1; i++)
if (Present (gnat_decl_array[i]))
for (gnat_decl = First (gnat_decl_array[i]);
gnat_decl != gnat_end_list; gnat_decl = Next (gnat_decl))
{
set_lineno (gnat_decl, 0);
if (Nkind (gnat_decl) == N_Package_Declaration
&& (Nkind (Specification (gnat_decl)
== N_Package_Specification)))
process_decls (Visible_Declarations (Specification (gnat_decl)),
Private_Declarations (Specification (gnat_decl)),
Empty, 1, 0);
else if (Nkind (gnat_decl) == N_Freeze_Entity)
{
process_freeze_entity (gnat_decl);
process_decls (Actions (gnat_decl), Empty, Empty, 1, 0);
}
else if (Nkind (gnat_decl) == N_Package_Body
&& Present (Freeze_Node (Corresponding_Spec (gnat_decl))))
record_code_position (gnat_decl);
else if (Nkind (gnat_decl) == N_Package_Body_Stub
&& Present (Library_Unit (gnat_decl))
&& Present (Freeze_Node
(Corresponding_Spec
(Proper_Body (Unit
(Library_Unit (gnat_decl)))))))
record_code_position
(Proper_Body (Unit (Library_Unit (gnat_decl))));
else if ((Nkind (gnat_decl) == N_Subprogram_Body
&& (Chars (Defining_Entity (gnat_decl))
!= Name_uInit_Proc)))
{
if (Acts_As_Spec (gnat_decl))
{
Node_Id gnat_subprog_id = Defining_Entity (gnat_decl);
if (Ekind (gnat_subprog_id) != E_Generic_Procedure
&& Ekind (gnat_subprog_id) != E_Generic_Function)
gnat_to_gnu_entity (gnat_subprog_id, NULL_TREE, 1);
}
}
else if (Nkind (gnat_decl) == N_Subprogram_Body_Stub)
{
Node_Id gnat_subprog_id =
Defining_Entity (Specification (gnat_decl));
if (Ekind (gnat_subprog_id) != E_Subprogram_Body
&& Ekind (gnat_subprog_id) != E_Generic_Procedure
&& Ekind (gnat_subprog_id) != E_Generic_Function)
gnat_to_gnu_entity (gnat_subprog_id, NULL_TREE, 1);
}
else if (Nkind (gnat_decl) == N_Task_Body_Stub
|| Nkind (gnat_decl) == N_Protected_Body_Stub)
;
else
gnat_to_code (gnat_decl);
}
if (pass2p)
for (i = 0; i <= 1; i++)
if (Present (gnat_decl_array[i]))
for (gnat_decl = First (gnat_decl_array[i]);
gnat_decl != gnat_end_list; gnat_decl = Next (gnat_decl))
{
if ((Nkind (gnat_decl) == N_Subprogram_Body
&& (Chars (Defining_Entity (gnat_decl))
!= Name_uInit_Proc))
|| Nkind (gnat_decl) == N_Subprogram_Body_Stub
|| Nkind (gnat_decl) == N_Task_Body_Stub
|| Nkind (gnat_decl) == N_Protected_Body_Stub)
gnat_to_code (gnat_decl);
else if (Nkind (gnat_decl) == N_Package_Declaration
&& (Nkind (Specification (gnat_decl)
== N_Package_Specification)))
process_decls (Visible_Declarations (Specification (gnat_decl)),
Private_Declarations (Specification (gnat_decl)),
Empty, 0, 1);
else if (Nkind (gnat_decl) == N_Freeze_Entity)
process_decls (Actions (gnat_decl), Empty, Empty, 0, 1);
}
}
static tree
emit_access_check (gnu_expr)
tree gnu_expr;
{
tree gnu_check_expr;
gnu_check_expr = gnu_expr = protect_multiple_eval (gnu_expr);
if (TYPE_FAT_POINTER_P (TREE_TYPE (gnu_expr)))
gnu_check_expr
= build_component_ref (gnu_expr, get_identifier ("P_ARRAY"), NULL_TREE);
if (! POINTER_TYPE_P (TREE_TYPE (gnu_check_expr)))
gigi_abort (322);
return emit_check (build_binary_op (EQ_EXPR, integer_type_node,
gnu_check_expr,
convert (TREE_TYPE (gnu_check_expr),
integer_zero_node)),
gnu_expr,
CE_Access_Check_Failed);
}
static tree
emit_discriminant_check (gnu_expr, gnat_node)
tree gnu_expr;
Node_Id gnat_node;
{
Entity_Id orig_comp
= Original_Record_Component (Entity (Selector_Name (gnat_node)));
Entity_Id gnat_discr_fct = Discriminant_Checking_Func (orig_comp);
tree gnu_discr_fct;
Entity_Id gnat_discr;
tree gnu_actual_list = NULL_TREE;
tree gnu_cond;
Entity_Id gnat_pref_type;
tree gnu_pref_type;
if (Is_Tagged_Type (Scope (orig_comp)))
gnat_pref_type = Scope (orig_comp);
else
{
gnat_pref_type = Etype (Prefix (gnat_node));
if (Is_Derived_Type (gnat_pref_type)
&& (Number_Discriminants (gnat_pref_type)
!= Number_Discriminants (Etype (Base_Type (gnat_pref_type)))))
gnat_pref_type = Etype (Base_Type (gnat_pref_type));
}
if (! Present (gnat_discr_fct))
return gnu_expr;
gnu_discr_fct = gnat_to_gnu (gnat_discr_fct);
gnu_expr = protect_multiple_eval (gnu_expr);
while (IN (Ekind (gnat_pref_type), Incomplete_Or_Private_Kind)
|| IN (Ekind (gnat_pref_type), Access_Kind))
{
if (IN (Ekind (gnat_pref_type), Incomplete_Or_Private_Kind))
gnat_pref_type = Underlying_Type (gnat_pref_type);
else if (IN (Ekind (gnat_pref_type), Access_Kind))
gnat_pref_type = Designated_Type (gnat_pref_type);
}
gnu_pref_type
= TREE_TYPE (gnat_to_gnu_entity (gnat_pref_type, NULL_TREE, 0));
for (gnat_discr = First_Discriminant (gnat_pref_type);
Present (gnat_discr); gnat_discr = Next_Discriminant (gnat_discr))
{
Entity_Id gnat_real_discr
= ((Present (Corresponding_Discriminant (gnat_discr))
&& Present (Parent_Subtype (gnat_pref_type)))
? Corresponding_Discriminant (gnat_discr) : gnat_discr);
tree gnu_discr = gnat_to_gnu_entity (gnat_real_discr, NULL_TREE, 0);
gnu_actual_list
= chainon (gnu_actual_list,
build_tree_list (NULL_TREE,
build_component_ref
(convert (gnu_pref_type, gnu_expr),
NULL_TREE, gnu_discr)));
}
gnu_cond = build (CALL_EXPR,
TREE_TYPE (TREE_TYPE (gnu_discr_fct)),
build_unary_op (ADDR_EXPR, NULL_TREE, gnu_discr_fct),
gnu_actual_list,
NULL_TREE);
TREE_SIDE_EFFECTS (gnu_cond) = 1;
return
build_unary_op
(INDIRECT_REF, NULL_TREE,
emit_check (gnu_cond,
build_unary_op (ADDR_EXPR,
build_reference_type (TREE_TYPE (gnu_expr)),
gnu_expr),
CE_Discriminant_Check_Failed));
}
static tree
emit_range_check (gnu_expr, gnat_range_type)
tree gnu_expr;
Entity_Id gnat_range_type;
{
tree gnu_range_type = get_unpadded_type (gnat_range_type);
tree gnu_low = TYPE_MIN_VALUE (gnu_range_type);
tree gnu_high = TYPE_MAX_VALUE (gnu_range_type);
tree gnu_compare_type = get_base_type (TREE_TYPE (gnu_expr));
if (INTEGRAL_TYPE_P (TREE_TYPE (gnu_expr))
&& (TYPE_PRECISION (gnu_compare_type)
< TYPE_PRECISION (get_base_type (gnu_range_type))))
return gnu_expr;
gnu_expr = protect_multiple_eval (gnu_expr);
return emit_check
(build_binary_op (TRUTH_ORIF_EXPR, integer_type_node,
invert_truthvalue
(build_binary_op (GE_EXPR, integer_type_node,
convert (gnu_compare_type, gnu_expr),
convert (gnu_compare_type, gnu_low))),
invert_truthvalue
(build_binary_op (LE_EXPR, integer_type_node,
convert (gnu_compare_type, gnu_expr),
convert (gnu_compare_type,
gnu_high)))),
gnu_expr, CE_Range_Check_Failed);
}
static tree
emit_index_check (gnu_array_object, gnu_expr, gnu_low, gnu_high)
tree gnu_array_object;
tree gnu_expr;
tree gnu_low;
tree gnu_high;
{
tree gnu_expr_check;
gnu_expr = protect_multiple_eval (gnu_expr);
gnu_expr_check = convert (get_base_type (TREE_TYPE (gnu_expr)), gnu_expr);
if (TREE_CODE (gnu_low) != INTEGER_CST && contains_placeholder_p (gnu_low))
gnu_low = build (WITH_RECORD_EXPR, TREE_TYPE (gnu_low),
gnu_low, gnu_array_object);
if (TREE_CODE (gnu_high) != INTEGER_CST && contains_placeholder_p (gnu_high))
gnu_high = build (WITH_RECORD_EXPR, TREE_TYPE (gnu_high),
gnu_high, gnu_array_object);
return emit_check
(build_binary_op (TRUTH_ORIF_EXPR, integer_type_node,
build_binary_op (LT_EXPR, integer_type_node,
gnu_expr_check,
convert (TREE_TYPE (gnu_expr_check),
gnu_low)),
build_binary_op (GT_EXPR, integer_type_node,
gnu_expr_check,
convert (TREE_TYPE (gnu_expr_check),
gnu_high))),
gnu_expr, CE_Index_Check_Failed);
}
static tree
emit_check (gnu_cond, gnu_expr, reason)
tree gnu_cond;
tree gnu_expr;
int reason;
{
tree gnu_call;
tree gnu_result;
gnu_call = build_call_raise (reason);
gnu_result = fold (build (COND_EXPR, TREE_TYPE (gnu_expr), gnu_cond,
build (COMPOUND_EXPR, TREE_TYPE (gnu_expr),
gnu_call, gnu_expr),
gnu_expr));
if (TREE_SIDE_EFFECTS (gnu_expr))
gnu_result
= build (COMPOUND_EXPR, TREE_TYPE (gnu_expr), gnu_expr, gnu_result);
else
TREE_SIDE_EFFECTS (gnu_result) = 0;
return save_expr (gnu_result);
}
static tree
convert_with_check (gnat_type, gnu_expr, overflow_p, range_p, truncate_p)
Entity_Id gnat_type;
tree gnu_expr;
int overflow_p;
int range_p;
int truncate_p;
{
tree gnu_type = get_unpadded_type (gnat_type);
tree gnu_in_type = TREE_TYPE (gnu_expr);
tree gnu_in_basetype = get_base_type (gnu_in_type);
tree gnu_base_type = get_base_type (gnu_type);
tree gnu_ada_base_type = get_ada_base_type (gnu_type);
tree gnu_in_lb = TYPE_MIN_VALUE (gnu_in_basetype);
tree gnu_in_ub = TYPE_MAX_VALUE (gnu_in_basetype);
tree gnu_out_lb = TYPE_MIN_VALUE (gnu_base_type);
tree gnu_out_ub = TYPE_MAX_VALUE (gnu_base_type);
tree gnu_result = gnu_expr;
if (! range_p && ! overflow_p && INTEGRAL_TYPE_P (gnu_base_type)
&& ! FLOAT_TYPE_P (gnu_in_type))
return convert (gnu_type, gnu_expr);
if (TREE_CODE (gnu_type) != UNCONSTRAINED_ARRAY_TYPE)
gnu_result = convert (gnu_in_basetype, gnu_result);
if (overflow_p
&& ! (FLOAT_TYPE_P (gnu_base_type) && INTEGRAL_TYPE_P (gnu_in_basetype)))
{
tree gnu_input = protect_multiple_eval (gnu_result);
tree gnu_cond = integer_zero_node;
if (INTEGRAL_TYPE_P (gnu_in_basetype) && TREE_UNSIGNED (gnu_in_basetype))
gnu_in_lb = convert (gnat_signed_type (gnu_in_basetype), gnu_in_lb);
if (INTEGRAL_TYPE_P (gnu_in_basetype)
&& ! TREE_UNSIGNED (gnu_in_basetype))
gnu_in_ub = convert (gnat_unsigned_type (gnu_in_basetype), gnu_in_ub);
if (INTEGRAL_TYPE_P (gnu_base_type) && TREE_UNSIGNED (gnu_base_type))
gnu_out_lb = convert (gnat_signed_type (gnu_base_type), gnu_out_lb);
if (INTEGRAL_TYPE_P (gnu_base_type) && ! TREE_UNSIGNED (gnu_base_type))
gnu_out_ub = convert (gnat_unsigned_type (gnu_base_type), gnu_out_ub);
if (INTEGRAL_TYPE_P (gnu_in_basetype)
? tree_int_cst_lt (gnu_in_lb, gnu_out_lb)
: (FLOAT_TYPE_P (gnu_base_type)
? REAL_VALUES_LESS (TREE_REAL_CST (gnu_in_lb),
TREE_REAL_CST (gnu_out_lb))
: 1))
gnu_cond
= invert_truthvalue
(build_binary_op (GE_EXPR, integer_type_node,
gnu_input, convert (gnu_in_basetype,
gnu_out_lb)));
if (INTEGRAL_TYPE_P (gnu_in_basetype)
? tree_int_cst_lt (gnu_out_ub, gnu_in_ub)
: (FLOAT_TYPE_P (gnu_base_type)
? REAL_VALUES_LESS (TREE_REAL_CST (gnu_out_ub),
TREE_REAL_CST (gnu_in_lb))
: 1))
gnu_cond
= build_binary_op (TRUTH_ORIF_EXPR, integer_type_node, gnu_cond,
invert_truthvalue
(build_binary_op (LE_EXPR, integer_type_node,
gnu_input,
convert (gnu_in_basetype,
gnu_out_ub))));
if (! integer_zerop (gnu_cond))
gnu_result = emit_check (gnu_cond, gnu_input,
CE_Overflow_Check_Failed);
}
if (INTEGRAL_TYPE_P (gnu_ada_base_type) && FLOAT_TYPE_P (gnu_in_basetype)
&& ! truncate_p)
{
tree gnu_point_5 = build_real (gnu_in_basetype, dconstp5);
tree gnu_minus_point_5 = build_real (gnu_in_basetype, dconstmp5);
tree gnu_zero = convert (gnu_in_basetype, integer_zero_node);
tree gnu_saved_result = save_expr (gnu_result);
tree gnu_comp = build (GE_EXPR, integer_type_node,
gnu_saved_result, gnu_zero);
tree gnu_adjust = build (COND_EXPR, gnu_in_basetype, gnu_comp,
gnu_point_5, gnu_minus_point_5);
gnu_result
= build (PLUS_EXPR, gnu_in_basetype, gnu_saved_result, gnu_adjust);
}
if (TREE_CODE (gnu_ada_base_type) == INTEGER_TYPE
&& TYPE_HAS_ACTUAL_BOUNDS_P (gnu_ada_base_type)
&& TREE_CODE (gnu_result) == UNCONSTRAINED_ARRAY_REF)
gnu_result = unchecked_convert (gnu_ada_base_type, gnu_result);
else
gnu_result = convert (gnu_ada_base_type, gnu_result);
if (range_p
|| (TREE_CODE (gnu_base_type) == INTEGER_TYPE
&& TYPE_MODULAR_P (gnu_base_type) && overflow_p))
gnu_result = emit_range_check (gnu_result, gnat_type);
return convert (gnu_type, gnu_result);
}
static int
addressable_p (gnu_expr)
tree gnu_expr;
{
switch (TREE_CODE (gnu_expr))
{
case UNCONSTRAINED_ARRAY_REF:
case INDIRECT_REF:
case VAR_DECL:
case PARM_DECL:
case FUNCTION_DECL:
case RESULT_DECL:
case CONSTRUCTOR:
case NULL_EXPR:
return 1;
case COMPONENT_REF:
return (! DECL_BIT_FIELD (TREE_OPERAND (gnu_expr, 1))
&& addressable_p (TREE_OPERAND (gnu_expr, 0)));
case ARRAY_REF: case ARRAY_RANGE_REF:
case REALPART_EXPR: case IMAGPART_EXPR:
case NOP_EXPR:
return addressable_p (TREE_OPERAND (gnu_expr, 0));
case CONVERT_EXPR:
return (AGGREGATE_TYPE_P (TREE_TYPE (gnu_expr))
&& addressable_p (TREE_OPERAND (gnu_expr, 0)));
case VIEW_CONVERT_EXPR:
{
tree type = TREE_TYPE (gnu_expr);
tree inner_type = TREE_TYPE (TREE_OPERAND (gnu_expr, 0));
return (((TYPE_MODE (type) == TYPE_MODE (inner_type)
&& (TYPE_ALIGN (type) <= TYPE_ALIGN (inner_type)
|| TYPE_ALIGN (inner_type) >= BIGGEST_ALIGNMENT))
|| ((TYPE_MODE (type) == BLKmode
|| TYPE_MODE (inner_type) == BLKmode)
&& (TYPE_ALIGN (type) <= TYPE_ALIGN (inner_type)
|| TYPE_ALIGN (inner_type) >= BIGGEST_ALIGNMENT
|| TYPE_ALIGN_OK (type)
|| TYPE_ALIGN_OK (inner_type))))
&& addressable_p (TREE_OPERAND (gnu_expr, 0)));
}
default:
return 0;
}
}
void
process_type (gnat_entity)
Entity_Id gnat_entity;
{
tree gnu_old
= present_gnu_tree (gnat_entity) ? get_gnu_tree (gnat_entity) : 0;
tree gnu_new;
if (Present (Freeze_Node (gnat_entity))
|| (IN (Ekind (gnat_entity), Incomplete_Or_Private_Kind)
&& Present (Full_View (gnat_entity))
&& Freeze_Node (Full_View (gnat_entity))
&& ! present_gnu_tree (Full_View (gnat_entity))))
{
elaborate_entity (gnat_entity);
if (gnu_old == 0)
{
tree gnu_decl = create_type_decl (get_entity_name (gnat_entity),
make_dummy_type (gnat_entity),
0, 0, 0);
save_gnu_tree (gnat_entity, gnu_decl, 0);
if (IN (Ekind (gnat_entity), Incomplete_Or_Private_Kind)
&& Present (Full_View (gnat_entity)))
save_gnu_tree (Full_View (gnat_entity), gnu_decl, 0);
}
return;
}
if (gnu_old != 0)
{
if (TREE_CODE (gnu_old) != TYPE_DECL
|| ! TYPE_IS_DUMMY_P (TREE_TYPE (gnu_old)))
{
if (Is_Type (gnat_entity) && From_With_Type (gnat_entity))
return;
gigi_abort (323);
}
save_gnu_tree (gnat_entity, NULL_TREE, 0);
}
gnu_new = gnat_to_gnu_entity (gnat_entity, NULL_TREE, 1);
if (TREE_CODE (gnu_new) != TYPE_DECL)
gigi_abort (324);
if (gnu_old != 0)
update_pointer_to (TYPE_MAIN_VARIANT (TREE_TYPE (gnu_old)),
TREE_TYPE (gnu_new));
if (IN (Ekind (gnat_entity), Record_Kind)
&& Is_Concurrent_Record_Type (gnat_entity)
&& present_gnu_tree (Corresponding_Concurrent_Type (gnat_entity)))
{
tree gnu_task_old
= get_gnu_tree (Corresponding_Concurrent_Type (gnat_entity));
save_gnu_tree (Corresponding_Concurrent_Type (gnat_entity),
NULL_TREE, 0);
save_gnu_tree (Corresponding_Concurrent_Type (gnat_entity),
gnu_new, 0);
update_pointer_to (TYPE_MAIN_VARIANT (TREE_TYPE (gnu_task_old)),
TREE_TYPE (gnu_new));
}
}
static tree
assoc_to_constructor (gnat_assoc, gnu_type)
Node_Id gnat_assoc;
tree gnu_type;
{
tree gnu_field, gnu_list, gnu_result;
for (gnu_list = NULL_TREE; Present (gnat_assoc);
gnat_assoc = Next (gnat_assoc))
{
Node_Id gnat_field = First (Choices (gnat_assoc));
tree gnu_field = gnat_to_gnu_entity (Entity (gnat_field), NULL_TREE, 0);
tree gnu_expr = gnat_to_gnu (Expression (gnat_assoc));
if (Next (gnat_field))
gigi_abort (328);
if (Do_Range_Check (Expression (gnat_assoc)))
gnu_expr = emit_range_check (gnu_expr, Etype (gnat_field));
gnu_expr = convert (TREE_TYPE (gnu_field), gnu_expr);
gnu_list = tree_cons (gnu_field, gnu_expr, gnu_list);
}
gnu_result = extract_values (gnu_list, gnu_type);
for (gnu_field = gnu_list; gnu_field; gnu_field = TREE_CHAIN (gnu_field))
if (! TREE_ADDRESSABLE (gnu_field))
gigi_abort (311);
return gnu_result;
}
static tree
pos_to_constructor (gnat_expr, gnu_array_type, gnat_component_type)
Node_Id gnat_expr;
tree gnu_array_type;
Entity_Id gnat_component_type;
{
tree gnu_expr;
tree gnu_expr_list = NULL_TREE;
for ( ; Present (gnat_expr); gnat_expr = Next (gnat_expr))
{
if (Nkind (gnat_expr) == N_Aggregate
&& TREE_CODE (TREE_TYPE (gnu_array_type)) == ARRAY_TYPE
&& TYPE_MULTI_ARRAY_P (TREE_TYPE (gnu_array_type)))
gnu_expr = pos_to_constructor (First (Expressions (gnat_expr)),
TREE_TYPE (gnu_array_type),
gnat_component_type);
else
{
gnu_expr = gnat_to_gnu (gnat_expr);
if (Do_Range_Check (gnat_expr))
gnu_expr = emit_range_check (gnu_expr, gnat_component_type);
}
gnu_expr_list
= tree_cons (NULL_TREE, convert (TREE_TYPE (gnu_array_type), gnu_expr),
gnu_expr_list);
}
return build_constructor (gnu_array_type, nreverse (gnu_expr_list));
}
static tree
extract_values (values, record_type)
tree values;
tree record_type;
{
tree result = NULL_TREE;
tree field, tem;
for (field = TYPE_FIELDS (record_type); field; field = TREE_CHAIN (field))
{
tree value = 0;
if ((tem = purpose_member (field, values)) != 0)
{
value = TREE_VALUE (tem);
TREE_ADDRESSABLE (tem) = 1;
}
else if (DECL_INTERNAL_P (field))
{
value = extract_values (values, TREE_TYPE (field));
if (TREE_CODE (value) == CONSTRUCTOR
&& CONSTRUCTOR_ELTS (value) == 0)
value = 0;
}
else
for (tem = values; tem; tem = TREE_CHAIN (tem))
if (DECL_NAME (TREE_PURPOSE (tem)) == DECL_NAME (field))
{
value = convert (TREE_TYPE (field), TREE_VALUE (tem));
TREE_ADDRESSABLE (tem) = 1;
}
if (value == 0)
continue;
result = tree_cons (field, value, result);
}
return build_constructor (record_type, nreverse (result));
}
static tree
maybe_implicit_deref (exp)
tree exp;
{
if (POINTER_TYPE_P (TREE_TYPE (exp)) || TYPE_FAT_POINTER_P (TREE_TYPE (exp)))
exp = build_unary_op (INDIRECT_REF, NULL_TREE, exp);
if (TREE_CODE (TREE_TYPE (exp)) == RECORD_TYPE
&& TYPE_IS_PADDING_P (TREE_TYPE (exp)))
exp = convert (TREE_TYPE (TYPE_FIELDS (TREE_TYPE (exp))), exp);
return exp;
}
tree
protect_multiple_eval (exp)
tree exp;
{
tree type = TREE_TYPE (exp);
if (! TREE_SIDE_EFFECTS (exp))
return exp;
else if (TREE_CODE (exp) == NON_LVALUE_EXPR
|| TREE_CODE (exp) == NOP_EXPR || TREE_CODE (exp) == CONVERT_EXPR
|| TREE_CODE (exp) == VIEW_CONVERT_EXPR
|| TREE_CODE (exp) == INDIRECT_REF
|| TREE_CODE (exp) == UNCONSTRAINED_ARRAY_REF)
return build1 (TREE_CODE (exp), type,
protect_multiple_eval (TREE_OPERAND (exp, 0)));
if (TYPE_FAT_POINTER_P (type) || TYPE_MODE (type) != BLKmode)
return save_expr (exp);
else
return
build_unary_op (INDIRECT_REF, type,
save_expr (build_unary_op (ADDR_EXPR,
build_reference_type (type),
exp)));
}
tree
gnat_stabilize_reference (ref, force)
tree ref;
int force;
{
register tree type = TREE_TYPE (ref);
register enum tree_code code = TREE_CODE (ref);
register tree result;
switch (code)
{
case VAR_DECL:
case PARM_DECL:
case RESULT_DECL:
return ref;
case NOP_EXPR:
case CONVERT_EXPR:
case FLOAT_EXPR:
case FIX_TRUNC_EXPR:
case FIX_FLOOR_EXPR:
case FIX_ROUND_EXPR:
case FIX_CEIL_EXPR:
case VIEW_CONVERT_EXPR:
case ADDR_EXPR:
result
= build1 (code, type,
gnat_stabilize_reference (TREE_OPERAND (ref, 0), force));
break;
case INDIRECT_REF:
case UNCONSTRAINED_ARRAY_REF:
result = build1 (code, type,
gnat_stabilize_reference_1 (TREE_OPERAND (ref, 0),
force));
break;
case COMPONENT_REF:
result = build (COMPONENT_REF, type,
gnat_stabilize_reference (TREE_OPERAND (ref, 0),
force),
TREE_OPERAND (ref, 1));
break;
case BIT_FIELD_REF:
result = build (BIT_FIELD_REF, type,
gnat_stabilize_reference (TREE_OPERAND (ref, 0), force),
gnat_stabilize_reference_1 (TREE_OPERAND (ref, 1),
force),
gnat_stabilize_reference_1 (TREE_OPERAND (ref, 2),
force));
break;
case ARRAY_REF:
result = build (ARRAY_REF, type,
gnat_stabilize_reference (TREE_OPERAND (ref, 0), force),
gnat_stabilize_reference_1 (TREE_OPERAND (ref, 1),
force));
break;
case ARRAY_RANGE_REF:
result = build (ARRAY_RANGE_REF, type,
gnat_stabilize_reference (TREE_OPERAND (ref, 0), force),
gnat_stabilize_reference_1 (TREE_OPERAND (ref, 1),
force));
break;
case COMPOUND_EXPR:
result = build (COMPOUND_EXPR, type,
gnat_stabilize_reference_1 (TREE_OPERAND (ref, 0),
force),
gnat_stabilize_reference (TREE_OPERAND (ref, 1),
force));
break;
case RTL_EXPR:
result = build1 (INDIRECT_REF, type,
save_expr (build1 (ADDR_EXPR,
build_reference_type (type), ref)));
break;
default:
return ref;
case ERROR_MARK:
return error_mark_node;
}
TREE_READONLY (result) = TREE_READONLY (ref);
return result;
}
static tree
gnat_stabilize_reference_1 (e, force)
tree e;
int force;
{
register enum tree_code code = TREE_CODE (e);
register tree type = TREE_TYPE (e);
register tree result;
if (TREE_CONSTANT (e) || code == SAVE_EXPR)
return e;
switch (TREE_CODE_CLASS (code))
{
case 'x':
case 't':
case 'd':
case 'b':
case '<':
case 's':
case 'e':
case 'r':
if (TREE_SIDE_EFFECTS (e) || force)
return save_expr (e);
return e;
case 'c':
return e;
case '2':
result = build (code, type,
gnat_stabilize_reference_1 (TREE_OPERAND (e, 0), force),
gnat_stabilize_reference_1 (TREE_OPERAND (e, 1), force));
break;
case '1':
result = build1 (code, type,
gnat_stabilize_reference_1 (TREE_OPERAND (e, 0),
force));
break;
default:
abort ();
}
TREE_READONLY (result) = TREE_READONLY (e);
return result;
}
static int
build_unit_elab (gnat_unit, body_p, gnu_elab_list)
Entity_Id gnat_unit;
int body_p;
tree gnu_elab_list;
{
tree gnu_decl;
rtx insn;
int result = 1;
if (gnu_elab_list == 0)
return 1;
gnu_pending_elaboration_lists = chainon (gnu_pending_elaboration_lists,
gnu_elab_list);
gnu_decl = create_subprog_decl (create_concat_name (gnat_unit,
body_p ?
"elabb" : "elabs"),
NULL_TREE, void_ftype, NULL_TREE, 0, 1, 0,
0);
DECL_ELABORATION_PROC_P (gnu_decl) = 1;
begin_subprog_body (gnu_decl);
set_lineno (gnat_unit, 1);
pushlevel (0);
gnu_block_stack = tree_cons (NULL_TREE, NULL_TREE, gnu_block_stack);
expand_start_bindings (0);
insn = get_last_insn ();
for (; gnu_elab_list; gnu_elab_list = TREE_CHAIN (gnu_elab_list))
if (TREE_PURPOSE (gnu_elab_list) == NULL_TREE)
{
if (TREE_VALUE (gnu_elab_list) != 0)
expand_expr_stmt (TREE_VALUE (gnu_elab_list));
}
else
{
tree lhs = TREE_PURPOSE (gnu_elab_list);
input_filename = DECL_SOURCE_FILE (lhs);
lineno = DECL_SOURCE_LINE (lhs);
if (TREE_CODE (TREE_TYPE (lhs)) == RECORD_TYPE
&& TYPE_IS_PADDING_P (TREE_TYPE (lhs)))
lhs = convert (TREE_TYPE (TYPE_FIELDS (TREE_TYPE (lhs))), lhs);
emit_line_note (input_filename, lineno);
expand_expr_stmt (build_binary_op (MODIFY_EXPR, NULL_TREE,
TREE_PURPOSE (gnu_elab_list),
TREE_VALUE (gnu_elab_list)));
}
for (insn = NEXT_INSN (insn); insn; insn = NEXT_INSN (insn))
if (GET_RTX_CLASS (GET_CODE (insn)) == 'i')
{
result = 0;
break;
}
expand_end_bindings (getdecls (), kept_level_p (), 0);
poplevel (kept_level_p (), 1, 0);
gnu_block_stack = TREE_CHAIN (gnu_block_stack);
end_subprog_body ();
gnu_pending_elaboration_lists = TREE_CHAIN (gnu_pending_elaboration_lists);
return result;
}
extern char *__gnat_to_canonical_file_spec PARAMS ((char *));
void
set_lineno (gnat_node, write_note_p)
Node_Id gnat_node;
int write_note_p;
{
Source_Ptr source_location = Sloc (gnat_node);
if (source_location < 0)
return;
input_filename
= IDENTIFIER_POINTER
(get_identifier
(__gnat_to_canonical_file_spec
(Get_Name_String
(Debug_Source_Name (Get_Source_File_Index (source_location))))));
ref_filename
= IDENTIFIER_POINTER
(get_identifier
(Get_Name_String
(Reference_Name (Get_Source_File_Index (source_location)))));;
lineno = Get_Logical_Line_Number (source_location);
if (write_note_p)
emit_line_note (input_filename, lineno);
}
void
post_error (msg, node)
const char *msg;
Node_Id node;
{
String_Template temp;
Fat_Pointer fp;
temp.Low_Bound = 1, temp.High_Bound = strlen (msg);
fp.Array = msg, fp.Bounds = &temp;
if (Present (node))
Error_Msg_N (fp, node);
}
void
post_error_ne (msg, node, ent)
const char *msg;
Node_Id node;
Entity_Id ent;
{
String_Template temp;
Fat_Pointer fp;
temp.Low_Bound = 1, temp.High_Bound = strlen (msg);
fp.Array = msg, fp.Bounds = &temp;
if (Present (node))
Error_Msg_NE (fp, node, ent);
}
void
post_error_ne_num (msg, node, ent, n)
const char *msg;
Node_Id node;
Entity_Id ent;
int n;
{
String_Template temp;
Fat_Pointer fp;
temp.Low_Bound = 1, temp.High_Bound = strlen (msg);
fp.Array = msg, fp.Bounds = &temp;
Error_Msg_Uint_1 = UI_From_Int (n);
if (Present (node))
Error_Msg_NE (fp, node, ent);
}
void
post_error_ne_tree (msg, node, ent, t)
const char *msg;
Node_Id node;
Entity_Id ent;
tree t;
{
char *newmsg = alloca (strlen (msg) + 1);
String_Template temp = {1, 0};
Fat_Pointer fp;
char start_yes, end_yes, start_no, end_no;
const char *p;
char *q;
fp.Array = newmsg, fp.Bounds = &temp;
if (host_integerp (t, 1)
#if HOST_BITS_PER_WIDE_INT > HOST_BITS_PER_INT
&& compare_tree_int (t, 1 << (HOST_BITS_PER_INT - 2)) < 0
#endif
)
{
Error_Msg_Uint_1 = UI_From_Int (tree_low_cst (t, 1));
start_yes = '{', end_yes = '}', start_no = '[', end_no = ']';
}
else
start_yes = '[', end_yes = ']', start_no = '{', end_no = '}';
for (p = msg, q = newmsg; *p != 0; p++)
{
if (*p == start_yes)
for (p++; *p != end_yes; p++)
*q++ = *p;
else if (*p == start_no)
for (p++; *p != end_no; p++)
;
else
*q++ = *p;
}
*q = 0;
temp.High_Bound = strlen (newmsg);
if (Present (node))
Error_Msg_NE (fp, node, ent);
}
void
post_error_ne_tree_2 (msg, node, ent, t, num)
const char *msg;
Node_Id node;
Entity_Id ent;
tree t;
int num;
{
Error_Msg_Uint_2 = UI_From_Int (num);
post_error_ne_tree (msg, node, ent, t);
}
void
set_second_error_entity (e)
Entity_Id e;
{
Error_Msg_Node_2 = e;
}
void
gigi_abort (code)
int code;
{
String_Template temp = {1, 10};
Fat_Pointer fp;
fp.Array = "Gigi abort", fp.Bounds = &temp;
Current_Error_Node = error_gnat_node;
Compiler_Abort (fp, code);
}
void
init_code_table ()
{
gnu_codes[N_And_Then] = TRUTH_ANDIF_EXPR;
gnu_codes[N_Or_Else] = TRUTH_ORIF_EXPR;
gnu_codes[N_Op_And] = TRUTH_AND_EXPR;
gnu_codes[N_Op_Or] = TRUTH_OR_EXPR;
gnu_codes[N_Op_Xor] = TRUTH_XOR_EXPR;
gnu_codes[N_Op_Eq] = EQ_EXPR;
gnu_codes[N_Op_Ne] = NE_EXPR;
gnu_codes[N_Op_Lt] = LT_EXPR;
gnu_codes[N_Op_Le] = LE_EXPR;
gnu_codes[N_Op_Gt] = GT_EXPR;
gnu_codes[N_Op_Ge] = GE_EXPR;
gnu_codes[N_Op_Add] = PLUS_EXPR;
gnu_codes[N_Op_Subtract] = MINUS_EXPR;
gnu_codes[N_Op_Multiply] = MULT_EXPR;
gnu_codes[N_Op_Mod] = FLOOR_MOD_EXPR;
gnu_codes[N_Op_Rem] = TRUNC_MOD_EXPR;
gnu_codes[N_Op_Minus] = NEGATE_EXPR;
gnu_codes[N_Op_Abs] = ABS_EXPR;
gnu_codes[N_Op_Not] = TRUTH_NOT_EXPR;
gnu_codes[N_Op_Rotate_Left] = LROTATE_EXPR;
gnu_codes[N_Op_Rotate_Right] = RROTATE_EXPR;
gnu_codes[N_Op_Shift_Left] = LSHIFT_EXPR;
gnu_codes[N_Op_Shift_Right] = RSHIFT_EXPR;
gnu_codes[N_Op_Shift_Right_Arithmetic] = RSHIFT_EXPR;
}
#include "gt-ada-trans.h"