* *
* C Implementation File *
* *
- * Copyright (C) 1992-2008, Free Software Foundation, Inc. *
+ * Copyright (C) 1992-2009, Free Software Foundation, Inc. *
* *
* GNAT is free software; you can redistribute it and/or modify it under *
* terms of the GNU General Public License as published by the Free Soft- *
- * ware Foundation; either version 2, or (at your option) any later ver- *
+ * ware Foundation; either version 3, or (at your option) any later ver- *
* sion. GNAT is distributed in the hope that it will be useful, but WITH- *
* OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
* for more details. You should have received a copy of the GNU General *
- * Public License distributed with GNAT; see file COPYING. If not, write *
- * to the Free Software Foundation, 51 Franklin Street, Fifth Floor, *
- * Boston, MA 02110-1301, USA. *
- * *
- * As a special exception, if you link this file with other files to *
- * produce an executable, this file does not by itself cause the resulting *
- * executable to be covered by the GNU General Public License. This except- *
- * ion does not however invalidate any other reasons why the executable *
- * file might be covered by the GNU Public License. *
+ * Public License distributed with GNAT; see file COPYING3. If not see *
+ * <http://www.gnu.org/licenses/>. *
* *
* GNAT was originally developed by the GNAT team at New York University. *
* Extensive contributions were provided by Ada Core Technologies Inc. *
#include "coretypes.h"
#include "tm.h"
#include "tree.h"
-#include "real.h"
-#include "rtl.h"
#include "diagnostic.h"
+#include "target.h"
#include "expr.h"
#include "libfuncs.h"
#include "ggc.h"
#include "flags.h"
#include "debug.h"
#include "cgraph.h"
-#include "tree-inline.h"
-#include "insn-codes.h"
-#include "insn-flags.h"
-#include "insn-config.h"
#include "optabs.h"
-#include "recog.h"
#include "toplev.h"
-#include "output.h"
#include "except.h"
-#include "tm_p.h"
#include "langhooks.h"
#include "langhooks-def.h"
-#include "target.h"
+#include "opts.h"
+#include "options.h"
+#include "tree-inline.h"
#include "ada.h"
+#include "adadecode.h"
#include "types.h"
#include "atree.h"
#include "elists.h"
#include "einfo.h"
#include "ada-tree.h"
#include "gigi.h"
-#include "adadecode.h"
-#include "opts.h"
-#include "options.h"
-
-extern FILE *asm_out_file;
-
-/* The largest alignment, in bits, that is needed for using the widest
- move instruction. */
-unsigned int largest_move_alignment;
static bool gnat_init (void);
-static void gnat_finish_incomplete_decl (tree);
static unsigned int gnat_init_options (unsigned int, const char **);
static int gnat_handle_option (size_t, const char *, int);
static bool gnat_post_options (const char **);
static tree gnat_return_tree (tree);
static int gnat_eh_type_covers (tree, tree);
static void gnat_parse_file (int);
-static rtx gnat_expand_expr (tree, rtx, enum machine_mode, int,
- rtx *);
static void internal_error_function (const char *, va_list *);
static tree gnat_type_max_size (const_tree);
#define LANG_HOOKS_PUSHDECL gnat_return_tree
#undef LANG_HOOKS_WRITE_GLOBALS
#define LANG_HOOKS_WRITE_GLOBALS gnat_write_global_declarations
-#undef LANG_HOOKS_FINISH_INCOMPLETE_DECL
-#define LANG_HOOKS_FINISH_INCOMPLETE_DECL gnat_finish_incomplete_decl
#undef LANG_HOOKS_GET_ALIAS_SET
#define LANG_HOOKS_GET_ALIAS_SET gnat_get_alias_set
-#undef LANG_HOOKS_EXPAND_EXPR
-#define LANG_HOOKS_EXPAND_EXPR gnat_expand_expr
#undef LANG_HOOKS_MARK_ADDRESSABLE
#define LANG_HOOKS_MARK_ADDRESSABLE gnat_mark_addressable
#undef LANG_HOOKS_PRINT_DECL
are incompatible with regular GDB versions, so we must make sure to only
produce them on explicit request. This is eventually reflected into the
use_gnu_debug_info_extensions common flag for later processing. */
-
static int gnat_dwarf_extensions = 0;
-/* Command-line argc and argv.
- These variables are global, since they are imported and used in
- back_end.adb */
-
+/* Command-line argc and argv. These variables are global
+ since they are imported in back_end.adb. */
unsigned int save_argc;
const char **save_argv;
-/* gnat standard argc argv */
-
+/* GNAT argc and argv. */
extern int gnat_argc;
extern char **gnat_argv;
/* Decode all the language specific options that cannot be decoded by GCC.
The option decoding phase of GCC calls this routine on the flags that
- it cannot decode. This routine returns the number of consecutive arguments
- from ARGV that it successfully decoded; 0 indicates failure. */
+ it cannot decode. Return the number of consecutive arguments from ARGV
+ that have been successfully decoded or 0 on failure. */
static int
gnat_handle_option (size_t scode, const char *arg, int value)
bool
gnat_post_options (const char **pfilename ATTRIBUTE_UNUSED)
{
+ /* Excess precision other than "fast" requires front-end
+ support. */
+ if (flag_excess_precision_cmdline == EXCESS_PRECISION_STANDARD
+ && TARGET_FLT_EVAL_METHOD_NON_DEFAULT)
+ sorry ("-fexcess-precision=standard for Ada");
+ flag_excess_precision_cmdline = EXCESS_PRECISION_FAST;
+
/* ??? The warning machinery is outsmarted by Ada. */
warn_unused_parameter = 0;
+ /* No psABI change warnings for Ada. */
+ warn_psabi = 0;
+
/* Force eliminate_unused_debug_types to 0 unless an explicit positive
-f has been passed. This forces the default to 0 for Ada, which might
differ from the common default. */
return true;
}
-/* This function is called indirectly from toplev.c to handle incomplete
- declarations, i.e. VAR_DECL nodes whose DECL_SIZE is zero. To be precise,
- compile_file in toplev.c makes an indirect call through the function pointer
- incomplete_decl_finalize_hook which is initialized to this routine in
- init_decl_processing. */
-
-static void
-gnat_finish_incomplete_decl (tree dont_care ATTRIBUTE_UNUSED)
-{
- gcc_unreachable ();
-}
-\f
-/* Compute the alignment of the largest mode that can be used for copying
- objects. */
-
-void
-gnat_compute_largest_alignment (void)
-{
- enum machine_mode mode;
-
- for (mode = GET_CLASS_NARROWEST_MODE (MODE_INT); mode != VOIDmode;
- mode = GET_MODE_WIDER_MODE (mode))
- if (optab_handler (mov_optab, mode)->insn_code != CODE_FOR_nothing)
- largest_move_alignment = MIN (BIGGEST_ALIGNMENT,
- MAX (largest_move_alignment,
- GET_MODE_ALIGNMENT (mode)));
-}
-
/* If we are using the GCC mechanism to process exception handling, we
have to register the personality routine for Ada and to initialize
various language dependent hooks. */
#endif
}
-/* Language hooks, first one to print language-specific items in a DECL. */
+/* Print language-specific items in declaration NODE. */
static void
gnat_print_decl (FILE *file, tree node, int indent)
}
}
+/* Print language-specific items in type NODE. */
+
static void
gnat_print_type (FILE *file, tree node, int indent)
{
print_node (file, "ci_co_list", TYPE_CI_CO_LIST (node), indent + 4);
break;
- case ENUMERAL_TYPE:
- case BOOLEAN_TYPE:
- print_node (file, "RM size", TYPE_RM_SIZE_NUM (node), indent + 4);
- break;
-
case INTEGER_TYPE:
if (TYPE_MODULAR_P (node))
- print_node (file, "modulus", TYPE_MODULUS (node), indent + 4);
+ print_node_brief (file, "modulus", TYPE_MODULUS (node), indent + 4);
else if (TYPE_HAS_ACTUAL_BOUNDS_P (node))
print_node (file, "actual bounds", TYPE_ACTUAL_BOUNDS (node),
indent + 4);
else
print_node (file, "index type", TYPE_INDEX_TYPE (node), indent + 4);
- print_node (file, "RM size", TYPE_RM_SIZE_NUM (node), indent + 4);
+ /* ... fall through ... */
+
+ case ENUMERAL_TYPE:
+ case BOOLEAN_TYPE:
+ print_node_brief (file, "RM size", TYPE_RM_SIZE (node), indent + 4);
break;
case ARRAY_TYPE:
}
}
-static const char *
-gnat_dwarf_name (tree t, int verbosity ATTRIBUTE_UNUSED)
-{
- gcc_assert (DECL_P (t));
-
- return (const char *) IDENTIFIER_POINTER (DECL_NAME (t));
-}
+/* Return the name to be printed for DECL. */
static const char *
gnat_printable_name (tree decl, int verbosity)
__gnat_decode (coded_name, ada_name, 0);
- if (verbosity == 2)
+ if (verbosity == 2 && !DECL_IS_BUILTIN (decl))
{
Set_Identifier_Casing (ada_name, (char *) DECL_SOURCE_FILE (decl));
- ada_name = Name_Buffer;
+ return ggc_strdup (Name_Buffer);
}
- return (const char *) ada_name;
+ return ada_name;
}
-/* Expands GNAT-specific GCC tree nodes. The only ones we support
- here are and NULL_EXPR. */
+/* Return the name to be used in DWARF debug info for DECL. */
-static rtx
-gnat_expand_expr (tree exp, rtx target, enum machine_mode tmode,
- int modifier, rtx *alt_rtl)
+static const char *
+gnat_dwarf_name (tree decl, int verbosity ATTRIBUTE_UNUSED)
{
- tree type = TREE_TYPE (exp);
- tree new;
-
- /* Update EXP to be the new expression to expand. */
- switch (TREE_CODE (exp))
- {
-#if 0
- case ALLOCATE_EXPR:
- return
- allocate_dynamic_stack_space
- (expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, TYPE_MODE (sizetype),
- EXPAND_NORMAL),
- NULL_RTX, tree_low_cst (TREE_OPERAND (exp, 1), 1));
-#endif
-
- case UNCONSTRAINED_ARRAY_REF:
- /* If we are evaluating just for side-effects, just evaluate our
- operand. Otherwise, abort since this code should never appear
- in a tree to be evaluated (objects aren't unconstrained). */
- if (target == const0_rtx || TREE_CODE (type) == VOID_TYPE)
- return expand_expr (TREE_OPERAND (exp, 0), const0_rtx,
- VOIDmode, modifier);
-
- /* ... fall through ... */
-
- default:
- gcc_unreachable ();
- }
-
- return expand_expr_real (new, target, tmode, modifier, alt_rtl);
+ gcc_assert (DECL_P (decl));
+ return (const char *) IDENTIFIER_POINTER (DECL_NAME (decl));
}
/* Do nothing (return the tree node passed). */
}
}
+/* Return the size of the FP mode with precision PREC. */
+
int
fp_prec_to_size (int prec)
{
gcc_unreachable ();
}
+/* Return the precision of the FP mode with size SIZE. */
+
int
fp_size_to_prec (int size)
{
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