/* Translation of constants
- Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software
- Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
Contributed by Paul Brook
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
/* trans-const.c -- convert constant values */
#include "system.h"
#include "coretypes.h"
#include "tree.h"
-#include "ggc.h"
+#include "realmpfr.h"
#include "toplev.h"
-#include "real.h"
#include "double-int.h"
#include "gfortran.h"
#include "trans.h"
#include "trans-const.h"
#include "trans-types.h"
+#include "target-memory.h"
tree gfc_rank_cst[GFC_MAX_DIMENSIONS + 1];
return val;
}
+/* Build a string constant with C char type. */
+
tree
gfc_build_string_const (int length, const char *s)
{
return str;
}
+
+/* Build a string constant with a type given by its kind; take care of
+ non-default character kinds. */
+
+tree
+gfc_build_wide_string_const (int kind, int length, const gfc_char_t *string)
+{
+ int i;
+ tree str, len;
+ size_t size;
+ char *s;
+
+ i = gfc_validate_kind (BT_CHARACTER, kind, false);
+ size = length * gfc_character_kinds[i].bit_size / 8;
+
+ s = XCNEWVAR (char, size);
+ gfc_encode_character (kind, length, string, (unsigned char *) s, size);
+
+ str = build_string (size, s);
+ gfc_free (s);
+
+ len = build_int_cst (NULL_TREE, length);
+ TREE_TYPE (str) =
+ build_array_type (gfc_get_char_type (kind),
+ build_range_type (gfc_charlen_type_node,
+ integer_one_node, len));
+ return str;
+}
+
+
/* Build a Fortran character constant from a zero-terminated string.
- Since this is mainly used for error messages, the string will get
- translated. */
+ There a two version of this function, one that translates the string
+ and one that doesn't. */
tree
-gfc_build_cstring_const (const char *msgid)
+gfc_build_cstring_const (const char *string)
{
- return gfc_build_string_const (strlen (msgid) + 1, _(msgid));
+ return gfc_build_string_const (strlen (string) + 1, string);
}
+tree
+gfc_build_localized_cstring_const (const char *msgid)
+{
+ const char *localized = _(msgid);
+ return gfc_build_string_const (strlen (localized) + 1, localized);
+}
+
+
/* Return a string constant with the given length. Used for static
initializers. The constant will be padded or truncated to match
length. */
tree
gfc_conv_string_init (tree length, gfc_expr * expr)
{
- char *s;
+ gfc_char_t *s;
HOST_WIDE_INT len;
int slen;
tree str;
+ bool free_s = false;
gcc_assert (expr->expr_type == EXPR_CONSTANT);
- gcc_assert (expr->ts.type == BT_CHARACTER && expr->ts.kind == 1);
+ gcc_assert (expr->ts.type == BT_CHARACTER);
gcc_assert (INTEGER_CST_P (length));
gcc_assert (TREE_INT_CST_HIGH (length) == 0);
if (len > slen)
{
- s = gfc_getmem (len);
- memcpy (s, expr->value.character.string, slen);
- memset (&s[slen], ' ', len - slen);
- str = gfc_build_string_const (len, s);
- gfc_free (s);
+ s = gfc_get_wide_string (len);
+ memcpy (s, expr->value.character.string, slen * sizeof (gfc_char_t));
+ gfc_wide_memset (&s[slen], ' ', len - slen);
+ free_s = true;
}
else
- str = gfc_build_string_const (len, expr->value.character.string);
+ s = expr->value.character.string;
+
+ str = gfc_build_wide_string_const (expr->ts.kind, len, s);
+
+ if (free_s)
+ gfc_free (s);
return str;
}
void
gfc_conv_const_charlen (gfc_charlen * cl)
{
- if (cl->backend_decl)
+ if (!cl || cl->backend_decl)
return;
if (cl->length && cl->length->expr_type == EXPR_CONSTANT)
/* Converts a real constant into backend form. */
tree
-gfc_conv_mpfr_to_tree (mpfr_t f, int kind)
+gfc_conv_mpfr_to_tree (mpfr_t f, int kind, int is_snan)
{
tree type;
int n;
gcc_assert (gfc_real_kinds[n].radix == 2);
type = gfc_get_real_type (kind);
- real_from_mpfr (&real, f, type, GFC_RND_MODE);
+ if (mpfr_nan_p (f) && is_snan)
+ real_from_string (&real, "SNaN");
+ else
+ real_from_mpfr (&real, f, type, GFC_RND_MODE);
+
return build_real (type, real);
}
tree
gfc_conv_constant_to_tree (gfc_expr * expr)
{
+ tree res;
+
gcc_assert (expr->expr_type == EXPR_CONSTANT);
/* If it is has a prescribed memory representation, we build a string
{
case BT_INTEGER:
if (expr->representation.string)
- return build1 (VIEW_CONVERT_EXPR,
- gfc_get_int_type (expr->ts.kind),
- gfc_build_string_const (expr->representation.length,
- expr->representation.string));
+ return fold_build1 (VIEW_CONVERT_EXPR,
+ gfc_get_int_type (expr->ts.kind),
+ gfc_build_string_const (expr->representation.length,
+ expr->representation.string));
else
return gfc_conv_mpz_to_tree (expr->value.integer, expr->ts.kind);
case BT_REAL:
if (expr->representation.string)
- return build1 (VIEW_CONVERT_EXPR,
- gfc_get_real_type (expr->ts.kind),
- gfc_build_string_const (expr->representation.length,
- expr->representation.string));
+ return fold_build1 (VIEW_CONVERT_EXPR,
+ gfc_get_real_type (expr->ts.kind),
+ gfc_build_string_const (expr->representation.length,
+ expr->representation.string));
else
- return gfc_conv_mpfr_to_tree (expr->value.real, expr->ts.kind);
+ return gfc_conv_mpfr_to_tree (expr->value.real, expr->ts.kind, expr->is_snan);
case BT_LOGICAL:
if (expr->representation.string)
- return build1 (VIEW_CONVERT_EXPR,
- gfc_get_logical_type (expr->ts.kind),
- gfc_build_string_const (expr->representation.length,
- expr->representation.string));
+ {
+ tree tmp = fold_build1 (VIEW_CONVERT_EXPR,
+ gfc_get_int_type (expr->ts.kind),
+ gfc_build_string_const (expr->representation.length,
+ expr->representation.string));
+ if (!integer_zerop (tmp) && !integer_onep (tmp))
+ gfc_warning ("Assigning value other than 0 or 1 to LOGICAL"
+ " has undefined result at %L", &expr->where);
+ return fold_convert (gfc_get_logical_type (expr->ts.kind), tmp);
+ }
else
return build_int_cst (gfc_get_logical_type (expr->ts.kind),
- expr->value.logical);
+ expr->value.logical);
case BT_COMPLEX:
if (expr->representation.string)
- return build1 (VIEW_CONVERT_EXPR,
- gfc_get_complex_type (expr->ts.kind),
- gfc_build_string_const (expr->representation.length,
- expr->representation.string));
+ return fold_build1 (VIEW_CONVERT_EXPR,
+ gfc_get_complex_type (expr->ts.kind),
+ gfc_build_string_const (expr->representation.length,
+ expr->representation.string));
else
{
- tree real = gfc_conv_mpfr_to_tree (expr->value.complex.r,
- expr->ts.kind);
- tree imag = gfc_conv_mpfr_to_tree (expr->value.complex.i,
- expr->ts.kind);
+ tree real = gfc_conv_mpfr_to_tree (mpc_realref (expr->value.complex),
+ expr->ts.kind, expr->is_snan);
+ tree imag = gfc_conv_mpfr_to_tree (mpc_imagref (expr->value.complex),
+ expr->ts.kind, expr->is_snan);
return build_complex (gfc_typenode_for_spec (&expr->ts),
real, imag);
}
case BT_CHARACTER:
- return gfc_build_string_const (expr->value.character.length,
- expr->value.character.string);
+ res = gfc_build_wide_string_const (expr->ts.kind,
+ expr->value.character.length,
+ expr->value.character.string);
+ return res;
case BT_HOLLERITH:
return gfc_build_string_const (expr->representation.length,
gfc_conv_constant (gfc_se * se, gfc_expr * expr)
{
/* We may be receiving an expression for C_NULL_PTR or C_NULL_FUNPTR. If
- so, they expr_type will not yet be an EXPR_CONSTANT. We need to make
+ so, the expr_type will not yet be an EXPR_CONSTANT. We need to make
it so here. */
- if (expr->ts.type == BT_DERIVED && expr->ts.derived
- && expr->ts.derived->attr.is_iso_c)
+ if (expr->ts.type == BT_DERIVED && expr->ts.u.derived
+ && expr->ts.u.derived->attr.is_iso_c)
{
if (expr->symtree->n.sym->intmod_sym_id == ISOCBINDING_NULL_PTR
|| expr->symtree->n.sym->intmod_sym_id == ISOCBINDING_NULL_FUNPTR)
{
/* Create a new EXPR_CONSTANT expression for our local uses. */
- expr = gfc_int_expr (0);
+ expr = gfc_get_int_expr (gfc_default_integer_kind, NULL, 0);
}
}
- gcc_assert (expr->expr_type == EXPR_CONSTANT);
+ if (expr->expr_type != EXPR_CONSTANT)
+ {
+ gfc_expr *e = gfc_get_int_expr (gfc_default_integer_kind, NULL, 0);
+ gfc_error ("non-constant initialization expression at %L", &expr->where);
+ se->expr = gfc_conv_constant_to_tree (e);
+ return;
+ }
if (se->ss != NULL)
{
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