/* Compiler arithmetic
- Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+ 2009, 2010
Free Software Foundation, Inc.
Contributed by Andy Vaught
#include "gfortran.h"
#include "arith.h"
#include "target-memory.h"
+#include "constructor.h"
/* MPFR does not have a direct replacement for mpz_set_f() from GMP.
It's easily implemented with a few calls though. */
for (rp = gfc_real_kinds; rp->kind; rp++)
mpfr_clears (rp->epsilon, rp->huge, rp->tiny, rp->subnormal, NULL);
+
+ mpfr_free_cache ();
}
}
-/* Function to return a constant expression node of a given type and kind. */
-
-gfc_expr *
-gfc_constant_result (bt type, int kind, locus *where)
-{
- gfc_expr *result;
-
- if (!where)
- gfc_internal_error ("gfc_constant_result(): locus 'where' cannot be NULL");
-
- result = gfc_get_expr ();
-
- result->expr_type = EXPR_CONSTANT;
- result->ts.type = type;
- result->ts.kind = kind;
- result->where = *where;
-
- switch (type)
- {
- case BT_INTEGER:
- mpz_init (result->value.integer);
- break;
-
- case BT_REAL:
- gfc_set_model_kind (kind);
- mpfr_init (result->value.real);
- break;
-
- case BT_COMPLEX:
- gfc_set_model_kind (kind);
- mpc_init2 (result->value.complex, mpfr_get_default_prec());
- break;
-
- default:
- break;
- }
-
- return result;
-}
-
-
/* Low-level arithmetic functions. All of these subroutines assume
that all operands are of the same type and return an operand of the
same type. The other thing about these subroutines is that they
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, op1->ts.kind, &op1->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, op1->ts.kind, &op1->where);
result->value.logical = !op1->value.logical;
*resultp = result;
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, gfc_kind_max (op1, op2),
- &op1->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, gfc_kind_max (op1, op2),
+ &op1->where);
result->value.logical = op1->value.logical && op2->value.logical;
*resultp = result;
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, gfc_kind_max (op1, op2),
- &op1->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, gfc_kind_max (op1, op2),
+ &op1->where);
result->value.logical = op1->value.logical || op2->value.logical;
*resultp = result;
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, gfc_kind_max (op1, op2),
- &op1->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, gfc_kind_max (op1, op2),
+ &op1->where);
result->value.logical = op1->value.logical == op2->value.logical;
*resultp = result;
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, gfc_kind_max (op1, op2),
- &op1->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, gfc_kind_max (op1, op2),
+ &op1->where);
result->value.logical = op1->value.logical != op2->value.logical;
*resultp = result;
gfc_expr *result;
arith rc;
- result = gfc_constant_result (op1->ts.type, op1->ts.kind, &op1->where);
+ result = gfc_get_constant_expr (op1->ts.type, op1->ts.kind, &op1->where);
switch (op1->ts.type)
{
gfc_expr *result;
arith rc;
- result = gfc_constant_result (op1->ts.type, op1->ts.kind, &op1->where);
+ result = gfc_get_constant_expr (op1->ts.type, op1->ts.kind, &op1->where);
switch (op1->ts.type)
{
gfc_expr *result;
arith rc;
- result = gfc_constant_result (op1->ts.type, op1->ts.kind, &op1->where);
+ result = gfc_get_constant_expr (op1->ts.type, op1->ts.kind, &op1->where);
switch (op1->ts.type)
{
gfc_expr *result;
arith rc;
- result = gfc_constant_result (op1->ts.type, op1->ts.kind, &op1->where);
+ result = gfc_get_constant_expr (op1->ts.type, op1->ts.kind, &op1->where);
switch (op1->ts.type)
{
rc = ARITH_OK;
- result = gfc_constant_result (op1->ts.type, op1->ts.kind, &op1->where);
+ result = gfc_get_constant_expr (op1->ts.type, op1->ts.kind, &op1->where);
switch (op1->ts.type)
{
int power_sign;
gfc_expr *result;
arith rc;
- extern bool init_flag;
rc = ARITH_OK;
- result = gfc_constant_result (op1->ts.type, op1->ts.kind, &op1->where);
+ result = gfc_get_constant_expr (op1->ts.type, op1->ts.kind, &op1->where);
switch (op2->ts.type)
{
case BT_REAL:
- if (init_flag)
+ if (gfc_init_expr_flag)
{
if (gfc_notify_std (GFC_STD_F2003,"Fortran 2003: Noninteger "
"exponent in an initialization "
{
gfc_error ("Raising a negative REAL at %L to "
"a REAL power is prohibited", &op1->where);
- gfc_free (result);
+ gfc_free_expr (result);
return ARITH_PROHIBIT;
}
case BT_COMPLEX:
{
- if (init_flag)
+ if (gfc_init_expr_flag)
{
if (gfc_notify_std (GFC_STD_F2003,"Fortran 2003: Noninteger "
"exponent in an initialization "
int len;
gcc_assert (op1->ts.kind == op2->ts.kind);
- result = gfc_constant_result (BT_CHARACTER, op1->ts.kind,
- &op1->where);
+ result = gfc_get_constant_expr (BT_CHARACTER, op1->ts.kind,
+ &op1->where);
len = op1->value.character.length + op2->value.character.length;
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, gfc_default_logical_kind,
- &op1->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
+ &op1->where);
result->value.logical = (op1->ts.type == BT_COMPLEX)
? compare_complex (op1, op2)
: (gfc_compare_expr (op1, op2, INTRINSIC_EQ) == 0);
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, gfc_default_logical_kind,
- &op1->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
+ &op1->where);
result->value.logical = (op1->ts.type == BT_COMPLEX)
? !compare_complex (op1, op2)
: (gfc_compare_expr (op1, op2, INTRINSIC_EQ) != 0);
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, gfc_default_logical_kind,
- &op1->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
+ &op1->where);
result->value.logical = (gfc_compare_expr (op1, op2, INTRINSIC_GT) > 0);
*resultp = result;
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, gfc_default_logical_kind,
- &op1->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
+ &op1->where);
result->value.logical = (gfc_compare_expr (op1, op2, INTRINSIC_GE) >= 0);
*resultp = result;
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, gfc_default_logical_kind,
- &op1->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
+ &op1->where);
result->value.logical = (gfc_compare_expr (op1, op2, INTRINSIC_LT) < 0);
*resultp = result;
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, gfc_default_logical_kind,
- &op1->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
+ &op1->where);
result->value.logical = (gfc_compare_expr (op1, op2, INTRINSIC_LE) <= 0);
*resultp = result;
reduce_unary (arith (*eval) (gfc_expr *, gfc_expr **), gfc_expr *op,
gfc_expr **result)
{
- gfc_constructor *c, *head;
+ gfc_constructor_base head;
+ gfc_constructor *c;
gfc_expr *r;
arith rc;
return eval (op, result);
rc = ARITH_OK;
- head = gfc_copy_constructor (op->value.constructor);
-
- for (c = head; c; c = c->next)
+ head = gfc_constructor_copy (op->value.constructor);
+ for (c = gfc_constructor_first (head); c; c = gfc_constructor_next (c))
{
rc = reduce_unary (eval, c->expr, &r);
}
if (rc != ARITH_OK)
- gfc_free_constructor (head);
+ gfc_constructor_free (head);
else
{
- r = gfc_get_expr ();
- r->expr_type = EXPR_ARRAY;
- r->value.constructor = head;
+ gfc_constructor *c = gfc_constructor_first (head);
+ r = gfc_get_array_expr (c->expr->ts.type, c->expr->ts.kind,
+ &op->where);
r->shape = gfc_copy_shape (op->shape, op->rank);
-
- r->ts = head->expr->ts;
- r->where = op->where;
r->rank = op->rank;
-
+ r->value.constructor = head;
*result = r;
}
reduce_binary_ac (arith (*eval) (gfc_expr *, gfc_expr *, gfc_expr **),
gfc_expr *op1, gfc_expr *op2, gfc_expr **result)
{
- gfc_constructor *c, *head;
+ gfc_constructor_base head;
+ gfc_constructor *c;
gfc_expr *r;
- arith rc;
+ arith rc = ARITH_OK;
- head = gfc_copy_constructor (op1->value.constructor);
- rc = ARITH_OK;
-
- for (c = head; c; c = c->next)
+ head = gfc_constructor_copy (op1->value.constructor);
+ for (c = gfc_constructor_first (head); c; c = gfc_constructor_next (c))
{
if (c->expr->expr_type == EXPR_CONSTANT)
rc = eval (c->expr, op2, &r);
}
if (rc != ARITH_OK)
- gfc_free_constructor (head);
+ gfc_constructor_free (head);
else
{
- r = gfc_get_expr ();
- r->expr_type = EXPR_ARRAY;
- r->value.constructor = head;
+ gfc_constructor *c = gfc_constructor_first (head);
+ r = gfc_get_array_expr (c->expr->ts.type, c->expr->ts.kind,
+ &op1->where);
r->shape = gfc_copy_shape (op1->shape, op1->rank);
-
- r->ts = head->expr->ts;
- r->where = op1->where;
r->rank = op1->rank;
-
+ r->value.constructor = head;
*result = r;
}
reduce_binary_ca (arith (*eval) (gfc_expr *, gfc_expr *, gfc_expr **),
gfc_expr *op1, gfc_expr *op2, gfc_expr **result)
{
- gfc_constructor *c, *head;
+ gfc_constructor_base head;
+ gfc_constructor *c;
gfc_expr *r;
- arith rc;
-
- head = gfc_copy_constructor (op2->value.constructor);
- rc = ARITH_OK;
+ arith rc = ARITH_OK;
- for (c = head; c; c = c->next)
+ head = gfc_constructor_copy (op2->value.constructor);
+ for (c = gfc_constructor_first (head); c; c = gfc_constructor_next (c))
{
if (c->expr->expr_type == EXPR_CONSTANT)
rc = eval (op1, c->expr, &r);
}
if (rc != ARITH_OK)
- gfc_free_constructor (head);
+ gfc_constructor_free (head);
else
{
- r = gfc_get_expr ();
- r->expr_type = EXPR_ARRAY;
- r->value.constructor = head;
+ gfc_constructor *c = gfc_constructor_first (head);
+ r = gfc_get_array_expr (c->expr->ts.type, c->expr->ts.kind,
+ &op2->where);
r->shape = gfc_copy_shape (op2->shape, op2->rank);
-
- r->ts = head->expr->ts;
- r->where = op2->where;
r->rank = op2->rank;
-
+ r->value.constructor = head;
*result = r;
}
reduce_binary_aa (arith (*eval) (gfc_expr *, gfc_expr *, gfc_expr **),
gfc_expr *op1, gfc_expr *op2, gfc_expr **result)
{
- gfc_constructor *c, *d, *head;
+ gfc_constructor_base head;
+ gfc_constructor *c, *d;
gfc_expr *r;
- arith rc;
+ arith rc = ARITH_OK;
- head = gfc_copy_constructor (op1->value.constructor);
+ if (gfc_check_conformance (op1, op2,
+ "elemental binary operation") != SUCCESS)
+ return ARITH_INCOMMENSURATE;
- rc = ARITH_OK;
- d = op2->value.constructor;
-
- if (gfc_check_conformance (op1, op2, "elemental binary operation")
- != SUCCESS)
- rc = ARITH_INCOMMENSURATE;
- else
+ head = gfc_constructor_copy (op1->value.constructor);
+ for (c = gfc_constructor_first (head),
+ d = gfc_constructor_first (op2->value.constructor);
+ c && d;
+ c = gfc_constructor_next (c), d = gfc_constructor_next (d))
{
- for (c = head; c; c = c->next, d = d->next)
- {
- if (d == NULL)
- {
- rc = ARITH_INCOMMENSURATE;
- break;
- }
-
- rc = reduce_binary (eval, c->expr, d->expr, &r);
- if (rc != ARITH_OK)
- break;
-
- gfc_replace_expr (c->expr, r);
- }
+ rc = reduce_binary (eval, c->expr, d->expr, &r);
+ if (rc != ARITH_OK)
+ break;
- if (d != NULL)
- rc = ARITH_INCOMMENSURATE;
+ gfc_replace_expr (c->expr, r);
}
+ if (c || d)
+ rc = ARITH_INCOMMENSURATE;
+
if (rc != ARITH_OK)
- gfc_free_constructor (head);
+ gfc_constructor_free (head);
else
{
- r = gfc_get_expr ();
- r->expr_type = EXPR_ARRAY;
- r->value.constructor = head;
+ gfc_constructor *c = gfc_constructor_first (head);
+ r = gfc_get_array_expr (c->expr->ts.type, c->expr->ts.kind,
+ &op1->where);
r->shape = gfc_copy_shape (op1->shape, op1->rank);
-
- r->ts = head->expr->ts;
- r->where = op1->where;
r->rank = op1->rank;
-
+ r->value.constructor = head;
*result = r;
}
temp.value.op.op1 = op1;
temp.value.op.op2 = op2;
- gfc_type_convert_binary (&temp);
+ gfc_type_convert_binary (&temp, 0);
if (op == INTRINSIC_EQ || op == INTRINSIC_NE
|| op == INTRINSIC_GE || op == INTRINSIC_GT
runtime:
/* Create a run-time expression. */
- result = gfc_get_expr ();
+ result = gfc_get_operator_expr (&op1->where, op, op1, op2);
result->ts = temp.ts;
- result->expr_type = EXPR_OP;
- result->value.op.op = op;
-
- result->value.op.op1 = op1;
- result->value.op.op2 = op2;
-
- result->where = op1->where;
-
return result;
}
gfc_expr *e;
const char *t;
- e = gfc_constant_result (BT_INTEGER, kind, where);
+ e = gfc_get_constant_expr (BT_INTEGER, kind, where);
/* A leading plus is allowed, but not by mpz_set_str. */
if (buffer[0] == '+')
t = buffer + 1;
{
gfc_expr *e;
- e = gfc_constant_result (BT_REAL, kind, where);
+ e = gfc_get_constant_expr (BT_REAL, kind, where);
mpfr_set_str (e->value.real, buffer, 10, GFC_RND_MODE);
return e;
{
gfc_expr *e;
- e = gfc_constant_result (BT_COMPLEX, kind, &real->where);
+ e = gfc_get_constant_expr (BT_COMPLEX, kind, &real->where);
mpc_set_fr_fr (e->value.complex, real->value.real, imag->value.real,
GFC_MPC_RND_MODE);
gfc_expr *result;
arith rc;
- result = gfc_constant_result (BT_INTEGER, kind, &src->where);
+ result = gfc_get_constant_expr (BT_INTEGER, kind, &src->where);
mpz_set (result->value.integer, src->value.integer);
gfc_expr *result;
arith rc;
- result = gfc_constant_result (BT_REAL, kind, &src->where);
+ result = gfc_get_constant_expr (BT_REAL, kind, &src->where);
mpfr_set_z (result->value.real, src->value.integer, GFC_RND_MODE);
gfc_expr *result;
arith rc;
- result = gfc_constant_result (BT_COMPLEX, kind, &src->where);
+ result = gfc_get_constant_expr (BT_COMPLEX, kind, &src->where);
mpc_set_z (result->value.complex, src->value.integer, GFC_MPC_RND_MODE);
gfc_expr *result;
arith rc;
- result = gfc_constant_result (BT_INTEGER, kind, &src->where);
+ result = gfc_get_constant_expr (BT_INTEGER, kind, &src->where);
gfc_mpfr_to_mpz (result->value.integer, src->value.real, &src->where);
gfc_expr *result;
arith rc;
- result = gfc_constant_result (BT_REAL, kind, &src->where);
+ result = gfc_get_constant_expr (BT_REAL, kind, &src->where);
mpfr_set (result->value.real, src->value.real, GFC_RND_MODE);
gfc_expr *result;
arith rc;
- result = gfc_constant_result (BT_COMPLEX, kind, &src->where);
+ result = gfc_get_constant_expr (BT_COMPLEX, kind, &src->where);
mpc_set_fr (result->value.complex, src->value.real, GFC_MPC_RND_MODE);
gfc_expr *result;
arith rc;
- result = gfc_constant_result (BT_INTEGER, kind, &src->where);
+ result = gfc_get_constant_expr (BT_INTEGER, kind, &src->where);
gfc_mpfr_to_mpz (result->value.integer, mpc_realref (src->value.complex),
&src->where);
gfc_expr *result;
arith rc;
- result = gfc_constant_result (BT_REAL, kind, &src->where);
+ result = gfc_get_constant_expr (BT_REAL, kind, &src->where);
mpc_real (result->value.real, src->value.complex, GFC_RND_MODE);
gfc_expr *result;
arith rc;
- result = gfc_constant_result (BT_COMPLEX, kind, &src->where);
+ result = gfc_get_constant_expr (BT_COMPLEX, kind, &src->where);
mpc_set (result->value.complex, src->value.complex, GFC_MPC_RND_MODE);
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, kind, &src->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, kind, &src->where);
result->value.logical = src->value.logical;
return result;
{
gfc_expr *result;
- result = gfc_constant_result (BT_INTEGER, kind, &src->where);
+ result = gfc_get_constant_expr (BT_INTEGER, kind, &src->where);
mpz_set_si (result->value.integer, src->value.logical);
return result;
{
gfc_expr *result;
- result = gfc_constant_result (BT_LOGICAL, kind, &src->where);
+ result = gfc_get_constant_expr (BT_LOGICAL, kind, &src->where);
result->value.logical = (mpz_cmp_si (src->value.integer, 0) != 0);
return result;
{
int src_len, result_len;
- src_len = src->representation.length;
+ src_len = src->representation.length - src->ts.u.pad;
result_len = gfc_target_expr_size (result);
if (src_len > result_len)
gfc_hollerith2int (gfc_expr *src, int kind)
{
gfc_expr *result;
-
- result = gfc_get_expr ();
- result->expr_type = EXPR_CONSTANT;
- result->ts.type = BT_INTEGER;
- result->ts.kind = kind;
- result->where = src->where;
+ result = gfc_get_constant_expr (BT_INTEGER, kind, &src->where);
hollerith2representation (result, src);
gfc_interpret_integer (kind, (unsigned char *) result->representation.string,
gfc_hollerith2real (gfc_expr *src, int kind)
{
gfc_expr *result;
-
- result = gfc_get_expr ();
- result->expr_type = EXPR_CONSTANT;
- result->ts.type = BT_REAL;
- result->ts.kind = kind;
- result->where = src->where;
+ result = gfc_get_constant_expr (BT_REAL, kind, &src->where);
hollerith2representation (result, src);
gfc_interpret_float (kind, (unsigned char *) result->representation.string,
gfc_hollerith2complex (gfc_expr *src, int kind)
{
gfc_expr *result;
-
- result = gfc_get_expr ();
- result->expr_type = EXPR_CONSTANT;
- result->ts.type = BT_COMPLEX;
- result->ts.kind = kind;
- result->where = src->where;
+ result = gfc_get_constant_expr (BT_COMPLEX, kind, &src->where);
hollerith2representation (result, src);
gfc_interpret_complex (kind, (unsigned char *) result->representation.string,
gfc_hollerith2logical (gfc_expr *src, int kind)
{
gfc_expr *result;
-
- result = gfc_get_expr ();
- result->expr_type = EXPR_CONSTANT;
- result->ts.type = BT_LOGICAL;
- result->ts.kind = kind;
- result->where = src->where;
+ result = gfc_get_constant_expr (BT_LOGICAL, kind, &src->where);
hollerith2representation (result, src);
gfc_interpret_logical (kind, (unsigned char *) result->representation.string,
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