/* Simplify intrinsic functions at compile-time.
- Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Free Software Foundation, Inc.
Contributed by Andy Vaught & Katherine Holcomb
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/>. */
#include "config.h"
#include "system.h"
#include "gfortran.h"
#include "arith.h"
#include "intrinsic.h"
+#include "target-memory.h"
gfc_expr gfc_bad_expr;
everything is reasonably straight-forward. The Standard, chapter 13
is the best comment you'll find for this file anyway. */
-/* Static table for converting non-ascii character sets to ascii.
- The xascii_table[] is the inverse table. */
-
-static int ascii_table[256] = {
- '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
- '\b', '\t', '\n', '\v', '\0', '\r', '\0', '\0',
- '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
- '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
- ' ', '!', '"', '#', '$', '%', '&', '\'',
- '(', ')', '*', '+', ',', '-', '.', '/',
- '0', '1', '2', '3', '4', '5', '6', '7',
- '8', '9', ':', ';', '<', '=', '>', '?',
- '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
- 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
- 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
- 'X', 'Y', 'Z', '[', '\\', ']', '^', '_',
- '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
- 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
- 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
- 'x', 'y', 'z', '{', '|', '}', '~', '\?'
-};
-
-static int xascii_table[256];
-
-
/* Range checks an expression node. If all goes well, returns the
node, otherwise returns &gfc_bad_expr and frees the node. */
static gfc_expr *
-range_check (gfc_expr * result, const char *name)
+range_check (gfc_expr *result, const char *name)
{
-
switch (gfc_range_check (result))
{
case ARITH_OK:
return result;
case ARITH_OVERFLOW:
- gfc_error ("Result of %s overflows its kind at %L", name, &result->where);
+ gfc_error ("Result of %s overflows its kind at %L", name,
+ &result->where);
break;
case ARITH_UNDERFLOW:
- gfc_error ("Result of %s underflows its kind at %L", name, &result->where);
+ gfc_error ("Result of %s underflows its kind at %L", name,
+ &result->where);
break;
case ARITH_NAN:
break;
default:
- gfc_error ("Result of %s gives range error for its kind at %L", name, &result->where);
+ gfc_error ("Result of %s gives range error for its kind at %L", name,
+ &result->where);
break;
}
kind parameter. Returns the kind, -1 if something went wrong. */
static int
-get_kind (bt type, gfc_expr * k, const char *name, int default_kind)
+get_kind (bt type, gfc_expr *k, const char *name, int default_kind)
{
int kind;
{
gfc_error ("KIND parameter of %s at %L must be an initialization "
"expression", name, &k->where);
-
return -1;
}
if (gfc_extract_int (k, &kind) != NULL
|| gfc_validate_kind (type, kind, true) < 0)
{
-
gfc_error ("Invalid KIND parameter of %s at %L", name, &k->where);
return -1;
}
}
-/* Checks if X, which is assumed to represent a two's complement
- integer of binary width BITSIZE, has the signbit set. If so, makes
- X the corresponding negative number. */
+/* Helper function to get an integer constant with a kind number given
+ by an integer constant expression. */
+static gfc_expr *
+int_expr_with_kind (int i, gfc_expr *kind, const char *name)
+{
+ gfc_expr *res = gfc_int_expr (i);
+ res->ts.kind = get_kind (BT_INTEGER, kind, name, gfc_default_integer_kind);
+ if (res->ts.kind == -1)
+ return NULL;
+ else
+ return res;
+}
+
+
+/* Converts an mpz_t signed variable into an unsigned one, assuming
+ two's complement representations and a binary width of bitsize.
+ The conversion is a no-op unless x is negative; otherwise, it can
+ be accomplished by masking out the high bits. */
+
+static void
+convert_mpz_to_unsigned (mpz_t x, int bitsize)
+{
+ mpz_t mask;
+
+ if (mpz_sgn (x) < 0)
+ {
+ /* Confirm that no bits above the signed range are unset. */
+ gcc_assert (mpz_scan0 (x, bitsize-1) == ULONG_MAX);
+
+ mpz_init_set_ui (mask, 1);
+ mpz_mul_2exp (mask, mask, bitsize);
+ mpz_sub_ui (mask, mask, 1);
+
+ mpz_and (x, x, mask);
+
+ mpz_clear (mask);
+ }
+ else
+ {
+ /* Confirm that no bits above the signed range are set. */
+ gcc_assert (mpz_scan1 (x, bitsize-1) == ULONG_MAX);
+ }
+}
+
+
+/* Converts an mpz_t unsigned variable into a signed one, assuming
+ two's complement representations and a binary width of bitsize.
+ If the bitsize-1 bit is set, this is taken as a sign bit and
+ the number is converted to the corresponding negative number. */
static void
-twos_complement (mpz_t x, int bitsize)
+convert_mpz_to_signed (mpz_t x, int bitsize)
{
mpz_t mask;
+ /* Confirm that no bits above the unsigned range are set. */
+ gcc_assert (mpz_scan1 (x, bitsize) == ULONG_MAX);
+
if (mpz_tstbit (x, bitsize - 1) == 1)
{
- mpz_init_set_ui(mask, 1);
- mpz_mul_2exp(mask, mask, bitsize);
- mpz_sub_ui(mask, mask, 1);
+ mpz_init_set_ui (mask, 1);
+ mpz_mul_2exp (mask, mask, bitsize);
+ mpz_sub_ui (mask, mask, 1);
/* We negate the number by hand, zeroing the high bits, that is
- make it the corresponding positive number, and then have it
- negated by GMP, giving the correct representation of the
- negative number. */
+ make it the corresponding positive number, and then have it
+ negated by GMP, giving the correct representation of the
+ negative number. */
mpz_com (x, x);
mpz_add_ui (x, x, 1);
mpz_and (x, x, mask);
/********************** Simplification functions *****************************/
gfc_expr *
-gfc_simplify_abs (gfc_expr * e)
+gfc_simplify_abs (gfc_expr *e)
{
gfc_expr *result;
return result;
}
+/* We use the processor's collating sequence, because all
+ systems that gfortran currently works on are ASCII. */
gfc_expr *
-gfc_simplify_achar (gfc_expr * e)
+gfc_simplify_achar (gfc_expr *e, gfc_expr *k)
{
gfc_expr *result;
- int index;
+ int c, kind;
+ const char *ch;
if (e->expr_type != EXPR_CONSTANT)
return NULL;
- /* We cannot assume that the native character set is ASCII in this
- function. */
- if (gfc_extract_int (e, &index) != NULL || index < 0 || index > 127)
- {
- gfc_error ("Extended ASCII not implemented: argument of ACHAR at %L "
- "must be between 0 and 127", &e->where);
- return &gfc_bad_expr;
- }
+ kind = get_kind (BT_CHARACTER, k, "ACHAR", gfc_default_character_kind);
+ if (kind == -1)
+ return &gfc_bad_expr;
- result = gfc_constant_result (BT_CHARACTER, gfc_default_character_kind,
- &e->where);
+ ch = gfc_extract_int (e, &c);
+
+ if (ch != NULL)
+ gfc_internal_error ("gfc_simplify_achar: %s", ch);
+
+ if (gfc_option.warn_surprising && (c < 0 || c > 127))
+ gfc_warning ("Argument of ACHAR function at %L outside of range [0,127]",
+ &e->where);
+
+ result = gfc_constant_result (BT_CHARACTER, kind, &e->where);
result->value.character.string = gfc_getmem (2);
result->value.character.length = 1;
- result->value.character.string[0] = ascii_table[index];
+ result->value.character.string[0] = c;
result->value.character.string[1] = '\0'; /* For debugger */
return result;
}
gfc_expr *
-gfc_simplify_acos (gfc_expr * x)
+gfc_simplify_acos (gfc_expr *x)
{
gfc_expr *result;
if (x->expr_type != EXPR_CONSTANT)
return NULL;
- if (mpfr_cmp_si (x->value.real, 1) > 0 || mpfr_cmp_si (x->value.real, -1) < 0)
+ if (mpfr_cmp_si (x->value.real, 1) > 0
+ || mpfr_cmp_si (x->value.real, -1) < 0)
{
gfc_error ("Argument of ACOS at %L must be between -1 and 1",
&x->where);
}
gfc_expr *
-gfc_simplify_acosh (gfc_expr * x)
+gfc_simplify_acosh (gfc_expr *x)
{
gfc_expr *result;
}
gfc_expr *
-gfc_simplify_adjustl (gfc_expr * e)
+gfc_simplify_adjustl (gfc_expr *e)
{
gfc_expr *result;
int count, i, len;
}
for (i = 0; i < len - count; ++i)
- {
- result->value.character.string[i] =
- e->value.character.string[count + i];
- }
+ result->value.character.string[i] = e->value.character.string[count + i];
for (i = len - count; i < len; ++i)
- {
- result->value.character.string[i] = ' ';
- }
+ result->value.character.string[i] = ' ';
result->value.character.string[len] = '\0'; /* For debugger */
gfc_expr *
-gfc_simplify_adjustr (gfc_expr * e)
+gfc_simplify_adjustr (gfc_expr *e)
{
gfc_expr *result;
int count, i, len;
}
for (i = 0; i < count; ++i)
- {
- result->value.character.string[i] = ' ';
- }
+ result->value.character.string[i] = ' ';
for (i = count; i < len; ++i)
- {
- result->value.character.string[i] =
- e->value.character.string[i - count];
- }
+ result->value.character.string[i] = e->value.character.string[i - count];
result->value.character.string[len] = '\0'; /* For debugger */
gfc_expr *
-gfc_simplify_aimag (gfc_expr * e)
+gfc_simplify_aimag (gfc_expr *e)
{
-
gfc_expr *result;
if (e->expr_type != EXPR_CONSTANT)
gfc_expr *
-gfc_simplify_aint (gfc_expr * e, gfc_expr * k)
+gfc_simplify_aint (gfc_expr *e, gfc_expr *k)
{
gfc_expr *rtrunc, *result;
int kind;
gfc_expr *
-gfc_simplify_dint (gfc_expr * e)
+gfc_simplify_dint (gfc_expr *e)
{
gfc_expr *rtrunc, *result;
gfc_expr *
-gfc_simplify_anint (gfc_expr * e, gfc_expr * k)
+gfc_simplify_anint (gfc_expr *e, gfc_expr *k)
{
gfc_expr *result;
int kind;
gfc_expr *
-gfc_simplify_and (gfc_expr * x, gfc_expr * y)
+gfc_simplify_and (gfc_expr *x, gfc_expr *y)
{
gfc_expr *result;
int kind;
gfc_expr *
-gfc_simplify_dnint (gfc_expr * e)
+gfc_simplify_dnint (gfc_expr *e)
{
gfc_expr *result;
gfc_expr *
-gfc_simplify_asin (gfc_expr * x)
+gfc_simplify_asin (gfc_expr *x)
{
gfc_expr *result;
if (x->expr_type != EXPR_CONSTANT)
return NULL;
- if (mpfr_cmp_si (x->value.real, 1) > 0 || mpfr_cmp_si (x->value.real, -1) < 0)
+ if (mpfr_cmp_si (x->value.real, 1) > 0
+ || mpfr_cmp_si (x->value.real, -1) < 0)
{
gfc_error ("Argument of ASIN at %L must be between -1 and 1",
&x->where);
result = gfc_constant_result (x->ts.type, x->ts.kind, &x->where);
- mpfr_asin(result->value.real, x->value.real, GFC_RND_MODE);
+ mpfr_asin (result->value.real, x->value.real, GFC_RND_MODE);
return range_check (result, "ASIN");
}
gfc_expr *
-gfc_simplify_asinh (gfc_expr * x)
+gfc_simplify_asinh (gfc_expr *x)
{
gfc_expr *result;
result = gfc_constant_result (x->ts.type, x->ts.kind, &x->where);
- mpfr_asinh(result->value.real, x->value.real, GFC_RND_MODE);
+ mpfr_asinh (result->value.real, x->value.real, GFC_RND_MODE);
return range_check (result, "ASINH");
}
gfc_expr *
-gfc_simplify_atan (gfc_expr * x)
+gfc_simplify_atan (gfc_expr *x)
{
gfc_expr *result;
result = gfc_constant_result (x->ts.type, x->ts.kind, &x->where);
- mpfr_atan(result->value.real, x->value.real, GFC_RND_MODE);
+ mpfr_atan (result->value.real, x->value.real, GFC_RND_MODE);
return range_check (result, "ATAN");
}
gfc_expr *
-gfc_simplify_atanh (gfc_expr * x)
+gfc_simplify_atanh (gfc_expr *x)
{
gfc_expr *result;
if (x->expr_type != EXPR_CONSTANT)
return NULL;
- if (mpfr_cmp_si (x->value.real, 1) >= 0 ||
- mpfr_cmp_si (x->value.real, -1) <= 0)
+ if (mpfr_cmp_si (x->value.real, 1) >= 0
+ || mpfr_cmp_si (x->value.real, -1) <= 0)
{
gfc_error ("Argument of ATANH at %L must be inside the range -1 to 1",
&x->where);
result = gfc_constant_result (x->ts.type, x->ts.kind, &x->where);
- mpfr_atanh(result->value.real, x->value.real, GFC_RND_MODE);
+ mpfr_atanh (result->value.real, x->value.real, GFC_RND_MODE);
return range_check (result, "ATANH");
}
gfc_expr *
-gfc_simplify_atan2 (gfc_expr * y, gfc_expr * x)
+gfc_simplify_atan2 (gfc_expr *y, gfc_expr *x)
{
gfc_expr *result;
if (mpfr_sgn (y->value.real) == 0 && mpfr_sgn (x->value.real) == 0)
{
- gfc_error
- ("If first argument of ATAN2 %L is zero, then the second argument "
- "must not be zero", &x->where);
+ gfc_error ("If first argument of ATAN2 %L is zero, then the "
+ "second argument must not be zero", &x->where);
gfc_free_expr (result);
return &gfc_bad_expr;
}
-#if defined(GFC_MPFR_TOO_OLD)
- arctangent2 (y->value.real, x->value.real, result->value.real);
-#else
mpfr_atan2 (result->value.real, y->value.real, x->value.real, GFC_RND_MODE);
-#endif
return range_check (result, "ATAN2");
}
gfc_expr *
-gfc_simplify_bit_size (gfc_expr * e)
+gfc_simplify_bit_size (gfc_expr *e)
{
gfc_expr *result;
int i;
gfc_expr *
-gfc_simplify_btest (gfc_expr * e, gfc_expr * bit)
+gfc_simplify_btest (gfc_expr *e, gfc_expr *bit)
{
int b;
gfc_expr *
-gfc_simplify_ceiling (gfc_expr * e, gfc_expr * k)
+gfc_simplify_ceiling (gfc_expr *e, gfc_expr *k)
{
gfc_expr *ceil, *result;
int kind;
ceil = gfc_copy_expr (e);
mpfr_ceil (ceil->value.real, e->value.real);
- gfc_mpfr_to_mpz(result->value.integer, ceil->value.real);
+ gfc_mpfr_to_mpz (result->value.integer, ceil->value.real);
gfc_free_expr (ceil);
gfc_expr *
-gfc_simplify_char (gfc_expr * e, gfc_expr * k)
+gfc_simplify_char (gfc_expr *e, gfc_expr *k)
{
gfc_expr *result;
int c, kind;
+ const char *ch;
kind = get_kind (BT_CHARACTER, k, "CHAR", gfc_default_character_kind);
if (kind == -1)
if (e->expr_type != EXPR_CONSTANT)
return NULL;
- if (gfc_extract_int (e, &c) != NULL || c < 0 || c > UCHAR_MAX)
- {
- gfc_error ("Bad character in CHAR function at %L", &e->where);
- return &gfc_bad_expr;
- }
+ ch = gfc_extract_int (e, &c);
+
+ if (ch != NULL)
+ gfc_internal_error ("gfc_simplify_char: %s", ch);
+
+ if (c < 0 || c > UCHAR_MAX)
+ gfc_error ("Argument of CHAR function at %L outside of range [0,255]",
+ &e->where);
result = gfc_constant_result (BT_CHARACTER, kind, &e->where);
/* Common subroutine for simplifying CMPLX and DCMPLX. */
static gfc_expr *
-simplify_cmplx (const char *name, gfc_expr * x, gfc_expr * y, int kind)
+simplify_cmplx (const char *name, gfc_expr *x, gfc_expr *y, int kind)
{
gfc_expr *result;
gfc_expr *
-gfc_simplify_cmplx (gfc_expr * x, gfc_expr * y, gfc_expr * k)
+gfc_simplify_cmplx (gfc_expr *x, gfc_expr *y, gfc_expr *k)
{
int kind;
gfc_expr *
-gfc_simplify_complex (gfc_expr * x, gfc_expr * y)
+gfc_simplify_complex (gfc_expr *x, gfc_expr *y)
{
int kind;
gfc_expr *
-gfc_simplify_conjg (gfc_expr * e)
+gfc_simplify_conjg (gfc_expr *e)
{
gfc_expr *result;
gfc_expr *
-gfc_simplify_cos (gfc_expr * x)
+gfc_simplify_cos (gfc_expr *x)
{
gfc_expr *result;
mpfr_t xp, xq;
mpfr_cos (xp, x->value.complex.r, GFC_RND_MODE);
mpfr_cosh (xq, x->value.complex.i, GFC_RND_MODE);
- mpfr_mul(result->value.complex.r, xp, xq, GFC_RND_MODE);
+ mpfr_mul (result->value.complex.r, xp, xq, GFC_RND_MODE);
mpfr_sin (xp, x->value.complex.r, GFC_RND_MODE);
mpfr_sinh (xq, x->value.complex.i, GFC_RND_MODE);
gfc_expr *
-gfc_simplify_cosh (gfc_expr * x)
+gfc_simplify_cosh (gfc_expr *x)
{
gfc_expr *result;
gfc_expr *
-gfc_simplify_dcmplx (gfc_expr * x, gfc_expr * y)
+gfc_simplify_dcmplx (gfc_expr *x, gfc_expr *y)
{
if (x->expr_type != EXPR_CONSTANT
gfc_expr *
-gfc_simplify_dble (gfc_expr * e)
+gfc_simplify_dble (gfc_expr *e)
{
gfc_expr *result;
gfc_expr *
-gfc_simplify_digits (gfc_expr * x)
+gfc_simplify_digits (gfc_expr *x)
{
int i, digits;
gfc_expr *
-gfc_simplify_dim (gfc_expr * x, gfc_expr * y)
+gfc_simplify_dim (gfc_expr *x, gfc_expr *y)
{
gfc_expr *result;
int kind;
case BT_REAL:
if (mpfr_cmp (x->value.real, y->value.real) > 0)
- mpfr_sub (result->value.real, x->value.real, y->value.real, GFC_RND_MODE);
+ mpfr_sub (result->value.real, x->value.real, y->value.real,
+ GFC_RND_MODE);
else
mpfr_set_ui (result->value.real, 0, GFC_RND_MODE);
gfc_expr *
-gfc_simplify_dprod (gfc_expr * x, gfc_expr * y)
+gfc_simplify_dprod (gfc_expr *x, gfc_expr *y)
{
gfc_expr *a1, *a2, *result;
if (x->expr_type != EXPR_CONSTANT || y->expr_type != EXPR_CONSTANT)
return NULL;
- result =
- gfc_constant_result (BT_REAL, gfc_default_double_kind, &x->where);
+ result = gfc_constant_result (BT_REAL, gfc_default_double_kind, &x->where);
a1 = gfc_real2real (x, gfc_default_double_kind);
a2 = gfc_real2real (y, gfc_default_double_kind);
gfc_expr *
-gfc_simplify_epsilon (gfc_expr * e)
+gfc_simplify_epsilon (gfc_expr *e)
{
gfc_expr *result;
int i;
gfc_expr *
-gfc_simplify_exp (gfc_expr * x)
+gfc_simplify_exp (gfc_expr *x)
{
gfc_expr *result;
mpfr_t xp, xq;
switch (x->ts.type)
{
case BT_REAL:
- mpfr_exp(result->value.real, x->value.real, GFC_RND_MODE);
+ mpfr_exp (result->value.real, x->value.real, GFC_RND_MODE);
break;
case BT_COMPLEX:
return range_check (result, "EXP");
}
-/* FIXME: MPFR should be able to do this better */
gfc_expr *
-gfc_simplify_exponent (gfc_expr * x)
+gfc_simplify_exponent (gfc_expr *x)
{
int i;
gfc_expr *result;
-#if defined(GFC_MPFR_TOO_OLD)
- mpfr_t tmp;
-#endif
-
if (x->expr_type != EXPR_CONSTANT)
return NULL;
return result;
}
-#if defined(GFC_MPFR_TOO_OLD)
- /* PR fortran/28276 suffers from a buggy MPFR, and this block of code
- does not function correctly. */
- mpfr_init (tmp);
-
- mpfr_abs (tmp, x->value.real, GFC_RND_MODE);
- mpfr_log2 (tmp, tmp, GFC_RND_MODE);
-
- gfc_mpfr_to_mpz (result->value.integer, tmp);
-
- /* The model number for tiny(x) is b**(emin - 1) where b is the base and emin
- is the smallest exponent value. So, we need to add 1 if x is tiny(x). */
- i = gfc_validate_kind (x->ts.type, x->ts.kind, false);
- if (mpfr_cmp (x->value.real, gfc_real_kinds[i].tiny) == 0)
- mpz_add_ui (result->value.integer,result->value.integer, 1);
-
- mpfr_clear (tmp);
-#else
i = (int) mpfr_get_exp (x->value.real);
mpz_set_si (result->value.integer, i);
-#endif
return range_check (result, "EXPONENT");
}
gfc_expr *
-gfc_simplify_float (gfc_expr * a)
+gfc_simplify_float (gfc_expr *a)
{
gfc_expr *result;
gfc_expr *
-gfc_simplify_floor (gfc_expr * e, gfc_expr * k)
+gfc_simplify_floor (gfc_expr *e, gfc_expr *k)
{
gfc_expr *result;
mpfr_t floor;
gfc_expr *
-gfc_simplify_fraction (gfc_expr * x)
+gfc_simplify_fraction (gfc_expr *x)
{
gfc_expr *result;
mpfr_t absv, exp, pow2;
gfc_expr *
-gfc_simplify_huge (gfc_expr * e)
+gfc_simplify_gamma (gfc_expr *x)
+{
+ gfc_expr *result;
+
+ if (x->expr_type != EXPR_CONSTANT)
+ return NULL;
+
+ result = gfc_constant_result (x->ts.type, x->ts.kind, &x->where);
+
+ gfc_set_model_kind (x->ts.kind);
+
+ mpfr_gamma (result->value.real, x->value.real, GFC_RND_MODE);
+
+ return range_check (result, "GAMMA");
+}
+
+
+gfc_expr *
+gfc_simplify_huge (gfc_expr *e)
{
gfc_expr *result;
int i;
return result;
}
+/* We use the processor's collating sequence, because all
+ systems that gfortran currently works on are ASCII. */
gfc_expr *
-gfc_simplify_iachar (gfc_expr * e)
+gfc_simplify_iachar (gfc_expr *e, gfc_expr *kind)
{
gfc_expr *result;
int index;
return &gfc_bad_expr;
}
- index = xascii_table[(int) e->value.character.string[0] & 0xFF];
+ index = (unsigned char) e->value.character.string[0];
+
+ if (gfc_option.warn_surprising && index > 127)
+ gfc_warning ("Argument of IACHAR function at %L outside of range 0..127",
+ &e->where);
+
+ if ((result = int_expr_with_kind (index, kind, "IACHAR")) == NULL)
+ return &gfc_bad_expr;
- result = gfc_int_expr (index);
result->where = e->where;
return range_check (result, "IACHAR");
gfc_expr *
-gfc_simplify_iand (gfc_expr * x, gfc_expr * y)
+gfc_simplify_iand (gfc_expr *x, gfc_expr *y)
{
gfc_expr *result;
gfc_expr *
-gfc_simplify_ibclr (gfc_expr * x, gfc_expr * y)
+gfc_simplify_ibclr (gfc_expr *x, gfc_expr *y)
{
gfc_expr *result;
int k, pos;
k = gfc_validate_kind (x->ts.type, x->ts.kind, false);
- if (pos > gfc_integer_kinds[k].bit_size)
+ if (pos >= gfc_integer_kinds[k].bit_size)
{
gfc_error ("Second argument of IBCLR exceeds bit size at %L",
&y->where);
result = gfc_copy_expr (x);
+ convert_mpz_to_unsigned (result->value.integer,
+ gfc_integer_kinds[k].bit_size);
+
mpz_clrbit (result->value.integer, pos);
+
+ convert_mpz_to_signed (result->value.integer,
+ gfc_integer_kinds[k].bit_size);
+
return range_check (result, "IBCLR");
}
gfc_expr *
-gfc_simplify_ibits (gfc_expr * x, gfc_expr * y, gfc_expr * z)
+gfc_simplify_ibits (gfc_expr *x, gfc_expr *y, gfc_expr *z)
{
gfc_expr *result;
int pos, len;
if (pos + len > bitsize)
{
- gfc_error
- ("Sum of second and third arguments of IBITS exceeds bit size "
- "at %L", &y->where);
+ gfc_error ("Sum of second and third arguments of IBITS exceeds "
+ "bit size at %L", &y->where);
return &gfc_bad_expr;
}
for (i = 0; i < bitsize; i++)
{
if (bits[i] == 0)
- {
- mpz_clrbit (result->value.integer, i);
- }
+ mpz_clrbit (result->value.integer, i);
else if (bits[i] == 1)
- {
- mpz_setbit (result->value.integer, i);
- }
+ mpz_setbit (result->value.integer, i);
else
- {
- gfc_internal_error ("IBITS: Bad bit");
- }
+ gfc_internal_error ("IBITS: Bad bit");
}
gfc_free (bits);
gfc_expr *
-gfc_simplify_ibset (gfc_expr * x, gfc_expr * y)
+gfc_simplify_ibset (gfc_expr *x, gfc_expr *y)
{
gfc_expr *result;
int k, pos;
k = gfc_validate_kind (x->ts.type, x->ts.kind, false);
- if (pos > gfc_integer_kinds[k].bit_size)
+ if (pos >= gfc_integer_kinds[k].bit_size)
{
gfc_error ("Second argument of IBSET exceeds bit size at %L",
&y->where);
result = gfc_copy_expr (x);
+ convert_mpz_to_unsigned (result->value.integer,
+ gfc_integer_kinds[k].bit_size);
+
mpz_setbit (result->value.integer, pos);
- twos_complement (result->value.integer, gfc_integer_kinds[k].bit_size);
+ convert_mpz_to_signed (result->value.integer,
+ gfc_integer_kinds[k].bit_size);
return range_check (result, "IBSET");
}
gfc_expr *
-gfc_simplify_ichar (gfc_expr * e)
+gfc_simplify_ichar (gfc_expr *e, gfc_expr *kind)
{
gfc_expr *result;
int index;
index = (unsigned char) e->value.character.string[0];
if (index < 0 || index > UCHAR_MAX)
- {
- gfc_error ("Argument of ICHAR at %L out of range of this processor",
- &e->where);
- return &gfc_bad_expr;
- }
+ gfc_internal_error("Argument of ICHAR at %L out of range", &e->where);
+
+ if ((result = int_expr_with_kind (index, kind, "ICHAR")) == NULL)
+ return &gfc_bad_expr;
- result = gfc_int_expr (index);
result->where = e->where;
return range_check (result, "ICHAR");
}
gfc_expr *
-gfc_simplify_ieor (gfc_expr * x, gfc_expr * y)
+gfc_simplify_ieor (gfc_expr *x, gfc_expr *y)
{
gfc_expr *result;
gfc_expr *
-gfc_simplify_index (gfc_expr * x, gfc_expr * y, gfc_expr * b)
+gfc_simplify_index (gfc_expr *x, gfc_expr *y, gfc_expr *b, gfc_expr *kind)
{
gfc_expr *result;
int back, len, lensub;
else
back = 0;
- result = gfc_constant_result (BT_INTEGER, gfc_default_integer_kind,
- &x->where);
+ k = get_kind (BT_INTEGER, kind, "INDEX", gfc_default_integer_kind);
+ if (k == -1)
+ return &gfc_bad_expr;
+
+ result = gfc_constant_result (BT_INTEGER, k, &x->where);
len = x->value.character.length;
lensub = y->value.character.length;
if (back == 0)
{
-
if (lensub == 0)
{
mpz_set_si (result->value.integer, 1);
{
for (j = 0; j < lensub; j++)
{
- if (y->value.character.string[j] ==
- x->value.character.string[i])
+ if (y->value.character.string[j]
+ == x->value.character.string[i])
{
index = i + 1;
goto done;
{
for (j = 0; j < lensub; j++)
{
- if (y->value.character.string[j] ==
- x->value.character.string[i])
+ if (y->value.character.string[j]
+ == x->value.character.string[i])
{
start = i;
count = 0;
for (k = 0; k < lensub; k++)
{
- if (y->value.character.string[k] ==
- x->value.character.string[k + start])
+ if (y->value.character.string[k]
+ == x->value.character.string[k + start])
count++;
}
}
else
{
-
if (lensub == 0)
{
mpz_set_si (result->value.integer, len + 1);
{
for (j = 0; j < lensub; j++)
{
- if (y->value.character.string[j] ==
- x->value.character.string[len - i])
+ if (y->value.character.string[j]
+ == x->value.character.string[len - i])
{
index = len - i + 1;
goto done;
{
for (j = 0; j < lensub; j++)
{
- if (y->value.character.string[j] ==
- x->value.character.string[len - i])
+ if (y->value.character.string[j]
+ == x->value.character.string[len - i])
{
start = len - i;
if (start <= len - lensub)
{
count = 0;
for (k = 0; k < lensub; k++)
- if (y->value.character.string[k] ==
- x->value.character.string[k + start])
+ if (y->value.character.string[k]
+ == x->value.character.string[k + start])
count++;
if (count == lensub)
gfc_expr *
-gfc_simplify_int (gfc_expr * e, gfc_expr * k)
+gfc_simplify_int (gfc_expr *e, gfc_expr *k)
{
gfc_expr *rpart, *rtrunc, *result;
int kind;
static gfc_expr *
-gfc_simplify_intconv (gfc_expr * e, int kind, const char *name)
+gfc_simplify_intconv (gfc_expr *e, int kind, const char *name)
{
gfc_expr *rpart, *rtrunc, *result;
return range_check (result, name);
}
+
gfc_expr *
-gfc_simplify_int2 (gfc_expr * e)
+gfc_simplify_int2 (gfc_expr *e)
{
return gfc_simplify_intconv (e, 2, "INT2");
}
+
gfc_expr *
-gfc_simplify_int8 (gfc_expr * e)
+gfc_simplify_int8 (gfc_expr *e)
{
return gfc_simplify_intconv (e, 8, "INT8");
}
+
gfc_expr *
-gfc_simplify_long (gfc_expr * e)
+gfc_simplify_long (gfc_expr *e)
{
return gfc_simplify_intconv (e, 4, "LONG");
}
gfc_expr *
-gfc_simplify_ifix (gfc_expr * e)
+gfc_simplify_ifix (gfc_expr *e)
{
gfc_expr *rtrunc, *result;
gfc_expr *
-gfc_simplify_idint (gfc_expr * e)
+gfc_simplify_idint (gfc_expr *e)
{
gfc_expr *rtrunc, *result;
gfc_expr *
-gfc_simplify_ior (gfc_expr * x, gfc_expr * y)
+gfc_simplify_ior (gfc_expr *x, gfc_expr *y)
{
gfc_expr *result;
gfc_expr *
-gfc_simplify_ishft (gfc_expr * e, gfc_expr * s)
+gfc_simplify_ishft (gfc_expr *e, gfc_expr *s)
{
gfc_expr *result;
int shift, ashift, isize, k, *bits, i;
if (ashift > isize)
{
- gfc_error
- ("Magnitude of second argument of ISHFT exceeds bit size at %L",
- &s->where);
+ gfc_error ("Magnitude of second argument of ISHFT exceeds bit size "
+ "at %L", &s->where);
return &gfc_bad_expr;
}
}
}
- twos_complement (result->value.integer, isize);
+ convert_mpz_to_signed (result->value.integer, isize);
gfc_free (bits);
return result;
gfc_expr *
-gfc_simplify_ishftc (gfc_expr * e, gfc_expr * s, gfc_expr * sz)
+gfc_simplify_ishftc (gfc_expr *e, gfc_expr *s, gfc_expr *sz)
{
gfc_expr *result;
- int shift, ashift, isize, delta, k;
+ int shift, ashift, isize, ssize, delta, k;
int i, *bits;
if (e->expr_type != EXPR_CONSTANT || s->expr_type != EXPR_CONSTANT)
}
k = gfc_validate_kind (e->ts.type, e->ts.kind, false);
+ isize = gfc_integer_kinds[k].bit_size;
if (sz != NULL)
{
- if (gfc_extract_int (sz, &isize) != NULL || isize < 0)
+ if (sz->expr_type != EXPR_CONSTANT)
+ return NULL;
+
+ if (gfc_extract_int (sz, &ssize) != NULL || ssize <= 0)
{
gfc_error ("Invalid third argument of ISHFTC at %L", &sz->where);
return &gfc_bad_expr;
}
+
+ if (ssize > isize)
+ {
+ gfc_error ("Magnitude of third argument of ISHFTC exceeds "
+ "BIT_SIZE of first argument at %L", &s->where);
+ return &gfc_bad_expr;
+ }
}
else
- isize = gfc_integer_kinds[k].bit_size;
+ ssize = isize;
if (shift >= 0)
ashift = shift;
else
ashift = -shift;
- if (ashift > isize)
+ if (ashift > ssize)
{
- gfc_error
- ("Magnitude of second argument of ISHFTC exceeds third argument "
- "at %L", &s->where);
+ if (sz != NULL)
+ gfc_error ("Magnitude of second argument of ISHFTC exceeds "
+ "third argument at %L", &s->where);
+ else
+ gfc_error ("Magnitude of second argument of ISHFTC exceeds "
+ "BIT_SIZE of first argument at %L", &s->where);
return &gfc_bad_expr;
}
result = gfc_constant_result (e->ts.type, e->ts.kind, &e->where);
+ mpz_set (result->value.integer, e->value.integer);
+
if (shift == 0)
- {
- mpz_set (result->value.integer, e->value.integer);
- return result;
- }
+ return result;
- bits = gfc_getmem (isize * sizeof (int));
+ convert_mpz_to_unsigned (result->value.integer, isize);
- for (i = 0; i < isize; i++)
+ bits = gfc_getmem (ssize * sizeof (int));
+
+ for (i = 0; i < ssize; i++)
bits[i] = mpz_tstbit (e->value.integer, i);
- delta = isize - ashift;
+ delta = ssize - ashift;
if (shift > 0)
{
mpz_setbit (result->value.integer, i + shift);
}
- for (i = delta; i < isize; i++)
+ for (i = delta; i < ssize; i++)
{
if (bits[i] == 0)
mpz_clrbit (result->value.integer, i - delta);
mpz_setbit (result->value.integer, i + delta);
}
- for (i = ashift; i < isize; i++)
+ for (i = ashift; i < ssize; i++)
{
if (bits[i] == 0)
mpz_clrbit (result->value.integer, i + shift);
}
}
- twos_complement (result->value.integer, isize);
+ convert_mpz_to_signed (result->value.integer, isize);
gfc_free (bits);
return result;
gfc_expr *
-gfc_simplify_kind (gfc_expr * e)
+gfc_simplify_kind (gfc_expr *e)
{
if (e->ts.type == BT_DERIVED)
static gfc_expr *
-simplify_bound (gfc_expr * array, gfc_expr * dim, int upper)
+simplify_bound_dim (gfc_expr *array, gfc_expr *kind, int d, int upper,
+ gfc_array_spec *as)
+{
+ gfc_expr *l, *u, *result;
+ int k;
+
+ /* The last dimension of an assumed-size array is special. */
+ if (d == as->rank && as->type == AS_ASSUMED_SIZE && !upper)
+ {
+ if (as->lower[d-1]->expr_type == EXPR_CONSTANT)
+ return gfc_copy_expr (as->lower[d-1]);
+ else
+ return NULL;
+ }
+
+ /* Then, we need to know the extent of the given dimension. */
+ l = as->lower[d-1];
+ u = as->upper[d-1];
+
+ if (l->expr_type != EXPR_CONSTANT || u->expr_type != EXPR_CONSTANT)
+ return NULL;
+
+ k = get_kind (BT_INTEGER, kind, upper ? "UBOUND" : "LBOUND",
+ gfc_default_integer_kind);
+ if (k == -1)
+ return &gfc_bad_expr;
+
+ result = gfc_constant_result (BT_INTEGER, k, &array->where);
+
+ if (mpz_cmp (l->value.integer, u->value.integer) > 0)
+ {
+ /* Zero extent. */
+ if (upper)
+ mpz_set_si (result->value.integer, 0);
+ else
+ mpz_set_si (result->value.integer, 1);
+ }
+ else
+ {
+ /* Nonzero extent. */
+ if (upper)
+ mpz_set (result->value.integer, u->value.integer);
+ else
+ mpz_set (result->value.integer, l->value.integer);
+ }
+
+ return range_check (result, upper ? "UBOUND" : "LBOUND");
+}
+
+
+static gfc_expr *
+simplify_bound (gfc_expr *array, gfc_expr *dim, gfc_expr *kind, int upper)
{
gfc_ref *ref;
gfc_array_spec *as;
- gfc_expr *e;
int d;
if (array->expr_type != EXPR_VARIABLE)
return NULL;
- if (dim == NULL)
- /* TODO: Simplify constant multi-dimensional bounds. */
- return NULL;
-
- if (dim->expr_type != EXPR_CONSTANT)
- return NULL;
-
/* Follow any component references. */
as = array->symtree->n.sym->as;
for (ref = array->ref; ref; ref = ref->next)
gcc_unreachable ();
done:
+
if (as->type == AS_DEFERRED || as->type == AS_ASSUMED_SHAPE)
return NULL;
- d = mpz_get_si (dim->value.integer);
-
- if (d < 1 || d > as->rank
- || (d == as->rank && as->type == AS_ASSUMED_SIZE && upper))
+ if (dim == NULL)
{
- gfc_error ("DIM argument at %L is out of bounds", &dim->where);
- return &gfc_bad_expr;
+ /* Multi-dimensional bounds. */
+ gfc_expr *bounds[GFC_MAX_DIMENSIONS];
+ gfc_expr *e;
+ gfc_constructor *head, *tail;
+ int k;
+
+ /* UBOUND(ARRAY) is not valid for an assumed-size array. */
+ if (upper && as->type == AS_ASSUMED_SIZE)
+ {
+ /* An error message will be emitted in
+ check_assumed_size_reference (resolve.c). */
+ return &gfc_bad_expr;
+ }
+
+ /* Simplify the bounds for each dimension. */
+ for (d = 0; d < array->rank; d++)
+ {
+ bounds[d] = simplify_bound_dim (array, kind, d + 1, upper, as);
+ if (bounds[d] == NULL || bounds[d] == &gfc_bad_expr)
+ {
+ int j;
+
+ for (j = 0; j < d; j++)
+ gfc_free_expr (bounds[j]);
+ return bounds[d];
+ }
+ }
+
+ /* Allocate the result expression. */
+ e = gfc_get_expr ();
+ e->where = array->where;
+ e->expr_type = EXPR_ARRAY;
+ e->ts.type = BT_INTEGER;
+ k = get_kind (BT_INTEGER, kind, upper ? "UBOUND" : "LBOUND",
+ gfc_default_integer_kind);
+ if (k == -1)
+ return &gfc_bad_expr;
+ e->ts.kind = k;
+
+ /* The result is a rank 1 array; its size is the rank of the first
+ argument to {L,U}BOUND. */
+ e->rank = 1;
+ e->shape = gfc_get_shape (1);
+ mpz_init_set_ui (e->shape[0], array->rank);
+
+ /* Create the constructor for this array. */
+ head = tail = NULL;
+ for (d = 0; d < array->rank; d++)
+ {
+ /* Get a new constructor element. */
+ if (head == NULL)
+ head = tail = gfc_get_constructor ();
+ else
+ {
+ tail->next = gfc_get_constructor ();
+ tail = tail->next;
+ }
+
+ tail->where = e->where;
+ tail->expr = bounds[d];
+ }
+ e->value.constructor = head;
+
+ return e;
}
+ else
+ {
+ /* A DIM argument is specified. */
+ if (dim->expr_type != EXPR_CONSTANT)
+ return NULL;
- e = upper ? as->upper[d-1] : as->lower[d-1];
+ d = mpz_get_si (dim->value.integer);
- if (e->expr_type != EXPR_CONSTANT)
- return NULL;
+ if (d < 1 || d > as->rank
+ || (d == as->rank && as->type == AS_ASSUMED_SIZE && upper))
+ {
+ gfc_error ("DIM argument at %L is out of bounds", &dim->where);
+ return &gfc_bad_expr;
+ }
- return gfc_copy_expr (e);
+ return simplify_bound_dim (array, kind, d, upper, as);
+ }
}
gfc_expr *
-gfc_simplify_lbound (gfc_expr * array, gfc_expr * dim)
+gfc_simplify_lbound (gfc_expr *array, gfc_expr *dim, gfc_expr *kind)
{
- return simplify_bound (array, dim, 0);
+ return simplify_bound (array, dim, kind, 0);
}
gfc_expr *
-gfc_simplify_len (gfc_expr * e)
+gfc_simplify_len (gfc_expr *e, gfc_expr *kind)
{
gfc_expr *result;
+ int k = get_kind (BT_INTEGER, kind, "LEN", gfc_default_integer_kind);
+
+ if (k == -1)
+ return &gfc_bad_expr;
if (e->expr_type == EXPR_CONSTANT)
{
- result = gfc_constant_result (BT_INTEGER, gfc_default_integer_kind,
- &e->where);
+ result = gfc_constant_result (BT_INTEGER, k, &e->where);
mpz_set_si (result->value.integer, e->value.character.length);
return range_check (result, "LEN");
}
if (e->ts.cl != NULL && e->ts.cl->length != NULL
- && e->ts.cl->length->expr_type == EXPR_CONSTANT)
+ && e->ts.cl->length->expr_type == EXPR_CONSTANT
+ && e->ts.cl->length->ts.type == BT_INTEGER)
{
- result = gfc_constant_result (BT_INTEGER, gfc_default_integer_kind,
- &e->where);
+ result = gfc_constant_result (BT_INTEGER, k, &e->where);
mpz_set (result->value.integer, e->ts.cl->length->value.integer);
return range_check (result, "LEN");
}
-
+
return NULL;
}
gfc_expr *
-gfc_simplify_len_trim (gfc_expr * e)
+gfc_simplify_len_trim (gfc_expr *e, gfc_expr *kind)
{
gfc_expr *result;
int count, len, lentrim, i;
+ int k = get_kind (BT_INTEGER, kind, "LEN_TRIM", gfc_default_integer_kind);
+
+ if (k == -1)
+ return &gfc_bad_expr;
if (e->expr_type != EXPR_CONSTANT)
return NULL;
- result = gfc_constant_result (BT_INTEGER, gfc_default_integer_kind,
- &e->where);
-
+ result = gfc_constant_result (BT_INTEGER, k, &e->where);
len = e->value.character.length;
for (count = 0, i = 1; i <= len; i++)
return range_check (result, "LEN_TRIM");
}
-
gfc_expr *
-gfc_simplify_lge (gfc_expr * a, gfc_expr * b)
+gfc_simplify_lgamma (gfc_expr *x __attribute__((unused)))
{
+#if MPFR_VERSION >= MPFR_VERSION_NUM(2,3,0)
+ gfc_expr *result;
+ int sg;
- if (a->expr_type != EXPR_CONSTANT || b->expr_type != EXPR_CONSTANT)
+ if (x->expr_type != EXPR_CONSTANT)
return NULL;
- return gfc_logical_expr (gfc_compare_string (a, b, xascii_table) >= 0,
- &a->where);
+ result = gfc_constant_result (x->ts.type, x->ts.kind, &x->where);
+
+ gfc_set_model_kind (x->ts.kind);
+
+ mpfr_lgamma (result->value.real, &sg, x->value.real, GFC_RND_MODE);
+
+ return range_check (result, "LGAMMA");
+#else
+ return NULL;
+#endif
}
gfc_expr *
-gfc_simplify_lgt (gfc_expr * a, gfc_expr * b)
+gfc_simplify_lge (gfc_expr *a, gfc_expr *b)
{
-
if (a->expr_type != EXPR_CONSTANT || b->expr_type != EXPR_CONSTANT)
return NULL;
- return gfc_logical_expr (gfc_compare_string (a, b, xascii_table) > 0,
- &a->where);
+ return gfc_logical_expr (gfc_compare_string (a, b) >= 0, &a->where);
}
gfc_expr *
-gfc_simplify_lle (gfc_expr * a, gfc_expr * b)
+gfc_simplify_lgt (gfc_expr *a, gfc_expr *b)
{
-
if (a->expr_type != EXPR_CONSTANT || b->expr_type != EXPR_CONSTANT)
return NULL;
- return gfc_logical_expr (gfc_compare_string (a, b, xascii_table) <= 0,
+ return gfc_logical_expr (gfc_compare_string (a, b) > 0,
&a->where);
}
gfc_expr *
-gfc_simplify_llt (gfc_expr * a, gfc_expr * b)
+gfc_simplify_lle (gfc_expr *a, gfc_expr *b)
{
+ if (a->expr_type != EXPR_CONSTANT || b->expr_type != EXPR_CONSTANT)
+ return NULL;
+
+ return gfc_logical_expr (gfc_compare_string (a, b) <= 0, &a->where);
+}
+
+gfc_expr *
+gfc_simplify_llt (gfc_expr *a, gfc_expr *b)
+{
if (a->expr_type != EXPR_CONSTANT || b->expr_type != EXPR_CONSTANT)
return NULL;
- return gfc_logical_expr (gfc_compare_string (a, b, xascii_table) < 0,
- &a->where);
+ return gfc_logical_expr (gfc_compare_string (a, b) < 0, &a->where);
}
gfc_expr *
-gfc_simplify_log (gfc_expr * x)
+gfc_simplify_log (gfc_expr *x)
{
gfc_expr *result;
mpfr_t xr, xi;
case BT_REAL:
if (mpfr_sgn (x->value.real) <= 0)
{
- gfc_error
- ("Argument of LOG at %L cannot be less than or equal to zero",
- &x->where);
+ gfc_error ("Argument of LOG at %L cannot be less than or equal "
+ "to zero", &x->where);
gfc_free_expr (result);
return &gfc_bad_expr;
}
- mpfr_log(result->value.real, x->value.real, GFC_RND_MODE);
+ mpfr_log (result->value.real, x->value.real, GFC_RND_MODE);
break;
case BT_COMPLEX:
mpfr_init (xr);
mpfr_init (xi);
-#if defined(GFC_MPFR_TOO_OLD)
- arctangent2 (x->value.complex.i, x->value.complex.r, result->value.complex.i);
-#else
- mpfr_atan2 (result->value.complex.i, x->value.complex.i, x->value.complex.r,
- GFC_RND_MODE);
-#endif
-
+ mpfr_atan2 (result->value.complex.i, x->value.complex.i,
+ x->value.complex.r, GFC_RND_MODE);
mpfr_mul (xr, x->value.complex.r, x->value.complex.r, GFC_RND_MODE);
mpfr_mul (xi, x->value.complex.i, x->value.complex.i, GFC_RND_MODE);
gfc_expr *
-gfc_simplify_log10 (gfc_expr * x)
+gfc_simplify_log10 (gfc_expr *x)
{
gfc_expr *result;
if (mpfr_sgn (x->value.real) <= 0)
{
- gfc_error
- ("Argument of LOG10 at %L cannot be less than or equal to zero",
- &x->where);
+ gfc_error ("Argument of LOG10 at %L cannot be less than or equal "
+ "to zero", &x->where);
return &gfc_bad_expr;
}
gfc_expr *
-gfc_simplify_logical (gfc_expr * e, gfc_expr * k)
+gfc_simplify_logical (gfc_expr *e, gfc_expr *k)
{
gfc_expr *result;
int kind;
MAX(), -1 for MIN(). */
static gfc_expr *
-simplify_min_max (gfc_expr * expr, int sign)
+simplify_min_max (gfc_expr *expr, int sign)
{
gfc_actual_arglist *arg, *last, *extremum;
gfc_intrinsic_sym * specific;
if (mpz_cmp (arg->expr->value.integer,
extremum->expr->value.integer) * sign > 0)
mpz_set (extremum->expr->value.integer, arg->expr->value.integer);
-
break;
case BT_REAL:
- if (mpfr_cmp (arg->expr->value.real, extremum->expr->value.real) *
- sign > 0)
+ if (mpfr_cmp (arg->expr->value.real, extremum->expr->value.real)
+ * sign > 0)
mpfr_set (extremum->expr->value.real, arg->expr->value.real,
- GFC_RND_MODE);
+ GFC_RND_MODE);
+ break;
+ case BT_CHARACTER:
+#define LENGTH(x) ((x)->expr->value.character.length)
+#define STRING(x) ((x)->expr->value.character.string)
+ if (LENGTH(extremum) < LENGTH(arg))
+ {
+ char * tmp = STRING(extremum);
+
+ STRING(extremum) = gfc_getmem (LENGTH(arg) + 1);
+ memcpy (STRING(extremum), tmp, LENGTH(extremum));
+ memset (&STRING(extremum)[LENGTH(extremum)], ' ',
+ LENGTH(arg) - LENGTH(extremum));
+ STRING(extremum)[LENGTH(arg)] = '\0'; /* For debugger */
+ LENGTH(extremum) = LENGTH(arg);
+ gfc_free (tmp);
+ }
+
+ if (gfc_compare_string (arg->expr, extremum->expr) * sign > 0)
+ {
+ gfc_free (STRING(extremum));
+ STRING(extremum) = gfc_getmem (LENGTH(extremum) + 1);
+ memcpy (STRING(extremum), STRING(arg), LENGTH(arg));
+ memset (&STRING(extremum)[LENGTH(arg)], ' ',
+ LENGTH(extremum) - LENGTH(arg));
+ STRING(extremum)[LENGTH(extremum)] = '\0'; /* For debugger */
+ }
+#undef LENGTH
+#undef STRING
break;
+
default:
- gfc_internal_error ("gfc_simplify_max(): Bad type in arglist");
+ gfc_internal_error ("simplify_min_max(): Bad type in arglist");
}
/* Delete the extra constant argument. */
gfc_expr *
-gfc_simplify_min (gfc_expr * e)
+gfc_simplify_min (gfc_expr *e)
{
return simplify_min_max (e, -1);
}
gfc_expr *
-gfc_simplify_max (gfc_expr * e)
+gfc_simplify_max (gfc_expr *e)
{
return simplify_min_max (e, 1);
}
gfc_expr *
-gfc_simplify_maxexponent (gfc_expr * x)
+gfc_simplify_maxexponent (gfc_expr *x)
{
gfc_expr *result;
int i;
gfc_expr *
-gfc_simplify_minexponent (gfc_expr * x)
+gfc_simplify_minexponent (gfc_expr *x)
{
gfc_expr *result;
int i;
gfc_expr *
-gfc_simplify_mod (gfc_expr * a, gfc_expr * p)
+gfc_simplify_mod (gfc_expr *a, gfc_expr *p)
{
gfc_expr *result;
mpfr_t quot, iquot, term;
gfc_expr *
-gfc_simplify_modulo (gfc_expr * a, gfc_expr * p)
+gfc_simplify_modulo (gfc_expr *a, gfc_expr *p)
{
gfc_expr *result;
mpfr_t quot, iquot, term;
if (mpz_cmp_ui (p->value.integer, 0) == 0)
{
/* Result is processor-dependent. This processor just opts
- to not handle it at all. */
+ to not handle it at all. */
gfc_error ("Second argument of MODULO at %L is zero", &a->where);
gfc_free_expr (result);
return &gfc_bad_expr;
/* Exists for the sole purpose of consistency with other intrinsics. */
gfc_expr *
-gfc_simplify_mvbits (gfc_expr * f ATTRIBUTE_UNUSED,
- gfc_expr * fp ATTRIBUTE_UNUSED,
- gfc_expr * l ATTRIBUTE_UNUSED,
- gfc_expr * to ATTRIBUTE_UNUSED,
- gfc_expr * tp ATTRIBUTE_UNUSED)
+gfc_simplify_mvbits (gfc_expr *f ATTRIBUTE_UNUSED,
+ gfc_expr *fp ATTRIBUTE_UNUSED,
+ gfc_expr *l ATTRIBUTE_UNUSED,
+ gfc_expr *to ATTRIBUTE_UNUSED,
+ gfc_expr *tp ATTRIBUTE_UNUSED)
{
return NULL;
}
gfc_expr *
-gfc_simplify_nearest (gfc_expr * x, gfc_expr * s)
+gfc_simplify_nearest (gfc_expr *x, gfc_expr *s)
{
gfc_expr *result;
mpfr_t tmp;
int sgn;
-#if defined(GFC_MPFR_TOO_OLD)
- int direction;
-#endif
if (x->expr_type != EXPR_CONSTANT || s->expr_type != EXPR_CONSTANT)
return NULL;
if (mpfr_sgn (s->value.real) == 0)
{
- gfc_error ("Second argument of NEAREST at %L shall not be zero", &s->where);
+ gfc_error ("Second argument of NEAREST at %L shall not be zero",
+ &s->where);
return &gfc_bad_expr;
}
gfc_set_model_kind (x->ts.kind);
result = gfc_copy_expr (x);
-#if defined(GFC_MPFR_TOO_OLD)
-
- direction = mpfr_sgn (s->value.real);
- sgn = mpfr_sgn (x->value.real);
-
- if (sgn == 0)
- {
- int k = gfc_validate_kind (BT_REAL, x->ts.kind, 0);
-
- if (direction > 0)
- mpfr_add (result->value.real,
- x->value.real, gfc_real_kinds[k].subnormal, GFC_RND_MODE);
- else
- mpfr_sub (result->value.real,
- x->value.real, gfc_real_kinds[k].subnormal, GFC_RND_MODE);
- }
- else
- {
- if (sgn < 0)
- {
- direction = -direction;
- mpfr_neg (result->value.real, result->value.real, GFC_RND_MODE);
- }
-
- if (direction > 0)
- mpfr_add_one_ulp (result->value.real, GFC_RND_MODE);
- else
- {
- /* In this case the exponent can shrink, which makes us skip
- over one number because we subtract one ulp with the
- larger exponent. Thus we need to compensate for this. */
- mpfr_init_set (tmp, result->value.real, GFC_RND_MODE);
-
- mpfr_sub_one_ulp (result->value.real, GFC_RND_MODE);
- mpfr_add_one_ulp (result->value.real, GFC_RND_MODE);
-
- /* If we're back to where we started, the spacing is one
- ulp, and we get the correct result by subtracting. */
- if (mpfr_cmp (tmp, result->value.real) == 0)
- mpfr_sub_one_ulp (result->value.real, GFC_RND_MODE);
-
- mpfr_clear (tmp);
- }
-
- if (sgn < 0)
- mpfr_neg (result->value.real, result->value.real, GFC_RND_MODE);
- }
-#else
sgn = mpfr_sgn (s->value.real);
mpfr_init (tmp);
mpfr_set_inf (tmp, sgn);
mpfr_nexttoward (result->value.real, tmp);
- mpfr_clear(tmp);
-#endif
+ mpfr_clear (tmp);
return range_check (result, "NEAREST");
}
static gfc_expr *
-simplify_nint (const char *name, gfc_expr * e, gfc_expr * k)
+simplify_nint (const char *name, gfc_expr *e, gfc_expr *k)
{
gfc_expr *itrunc, *result;
int kind;
itrunc = gfc_copy_expr (e);
- mpfr_round(itrunc->value.real, e->value.real);
+ mpfr_round (itrunc->value.real, e->value.real);
gfc_mpfr_to_mpz (result->value.integer, itrunc->value.real);
gfc_expr *
-gfc_simplify_new_line (gfc_expr * e)
+gfc_simplify_new_line (gfc_expr *e)
{
gfc_expr *result;
- if (e->expr_type != EXPR_CONSTANT)
- return NULL;
-
result = gfc_constant_result (BT_CHARACTER, e->ts.kind, &e->where);
-
result->value.character.string = gfc_getmem (2);
-
result->value.character.length = 1;
result->value.character.string[0] = '\n';
result->value.character.string[1] = '\0'; /* For debugger */
gfc_expr *
-gfc_simplify_nint (gfc_expr * e, gfc_expr * k)
+gfc_simplify_nint (gfc_expr *e, gfc_expr *k)
{
return simplify_nint ("NINT", e, k);
}
gfc_expr *
-gfc_simplify_idnint (gfc_expr * e)
+gfc_simplify_idnint (gfc_expr *e)
{
return simplify_nint ("IDNINT", e, NULL);
}
gfc_expr *
-gfc_simplify_not (gfc_expr * e)
+gfc_simplify_not (gfc_expr *e)
{
gfc_expr *result;
- int i;
- mpz_t mask;
if (e->expr_type != EXPR_CONSTANT)
return NULL;
mpz_com (result->value.integer, e->value.integer);
- /* Because of how GMP handles numbers, the result must be ANDed with
- a mask. For radices <> 2, this will require change. */
-
- i = gfc_validate_kind (BT_INTEGER, e->ts.kind, false);
-
- mpz_init (mask);
- mpz_add (mask, gfc_integer_kinds[i].huge, gfc_integer_kinds[i].huge);
- mpz_add_ui (mask, mask, 1);
-
- mpz_and (result->value.integer, result->value.integer, mask);
-
- twos_complement (result->value.integer, gfc_integer_kinds[i].bit_size);
-
- mpz_clear (mask);
-
return range_check (result, "NOT");
}
gfc_expr *
-gfc_simplify_null (gfc_expr * mold)
+gfc_simplify_null (gfc_expr *mold)
{
gfc_expr *result;
gfc_expr *
-gfc_simplify_or (gfc_expr * x, gfc_expr * y)
+gfc_simplify_or (gfc_expr *x, gfc_expr *y)
{
gfc_expr *result;
int kind;
gfc_expr *
-gfc_simplify_precision (gfc_expr * e)
+gfc_simplify_precision (gfc_expr *e)
{
gfc_expr *result;
int i;
gfc_expr *
-gfc_simplify_radix (gfc_expr * e)
+gfc_simplify_radix (gfc_expr *e)
{
gfc_expr *result;
int i;
gfc_expr *
-gfc_simplify_range (gfc_expr * e)
+gfc_simplify_range (gfc_expr *e)
{
gfc_expr *result;
int i;
gfc_expr *
-gfc_simplify_real (gfc_expr * e, gfc_expr * k)
+gfc_simplify_real (gfc_expr *e, gfc_expr *k)
{
gfc_expr *result;
int kind;
gfc_expr *
-gfc_simplify_realpart (gfc_expr * e)
+gfc_simplify_realpart (gfc_expr *e)
{
gfc_expr *result;
}
gfc_expr *
-gfc_simplify_repeat (gfc_expr * e, gfc_expr * n)
+gfc_simplify_repeat (gfc_expr *e, gfc_expr *n)
{
gfc_expr *result;
- int i, j, len, ncopies, nlen;
+ int i, j, len, ncop, nlen;
+ mpz_t ncopies;
+ bool have_length = false;
- if (e->expr_type != EXPR_CONSTANT || n->expr_type != EXPR_CONSTANT)
+ /* If NCOPIES isn't a constant, there's nothing we can do. */
+ if (n->expr_type != EXPR_CONSTANT)
return NULL;
- if (n != NULL && (gfc_extract_int (n, &ncopies) != NULL || ncopies < 0))
+ /* If NCOPIES is negative, it's an error. */
+ if (mpz_sgn (n->value.integer) < 0)
{
- gfc_error ("Invalid second argument of REPEAT at %L", &n->where);
+ gfc_error ("Argument NCOPIES of REPEAT intrinsic is negative at %L",
+ &n->where);
return &gfc_bad_expr;
}
+ /* If we don't know the character length, we can do no more. */
+ if (e->ts.cl && e->ts.cl->length
+ && e->ts.cl->length->expr_type == EXPR_CONSTANT)
+ {
+ len = mpz_get_si (e->ts.cl->length->value.integer);
+ have_length = true;
+ }
+ else if (e->expr_type == EXPR_CONSTANT
+ && (e->ts.cl == NULL || e->ts.cl->length == NULL))
+ {
+ len = e->value.character.length;
+ }
+ else
+ return NULL;
+
+ /* If the source length is 0, any value of NCOPIES is valid
+ and everything behaves as if NCOPIES == 0. */
+ mpz_init (ncopies);
+ if (len == 0)
+ mpz_set_ui (ncopies, 0);
+ else
+ mpz_set (ncopies, n->value.integer);
+
+ /* Check that NCOPIES isn't too large. */
+ if (len)
+ {
+ mpz_t max, mlen;
+ int i;
+
+ /* Compute the maximum value allowed for NCOPIES: huge(cl) / len. */
+ mpz_init (max);
+ i = gfc_validate_kind (BT_INTEGER, gfc_charlen_int_kind, false);
+
+ if (have_length)
+ {
+ mpz_tdiv_q (max, gfc_integer_kinds[i].huge,
+ e->ts.cl->length->value.integer);
+ }
+ else
+ {
+ mpz_init_set_si (mlen, len);
+ mpz_tdiv_q (max, gfc_integer_kinds[i].huge, mlen);
+ mpz_clear (mlen);
+ }
+
+ /* The check itself. */
+ if (mpz_cmp (ncopies, max) > 0)
+ {
+ mpz_clear (max);
+ mpz_clear (ncopies);
+ gfc_error ("Argument NCOPIES of REPEAT intrinsic is too large at %L",
+ &n->where);
+ return &gfc_bad_expr;
+ }
+
+ mpz_clear (max);
+ }
+ mpz_clear (ncopies);
+
+ /* For further simplification, we need the character string to be
+ constant. */
+ if (e->expr_type != EXPR_CONSTANT)
+ return NULL;
+
+ if (len || mpz_sgn (e->ts.cl->length->value.integer) != 0)
+ {
+ const char *res = gfc_extract_int (n, &ncop);
+ gcc_assert (res == NULL);
+ }
+ else
+ ncop = 0;
+
len = e->value.character.length;
- nlen = ncopies * len;
+ nlen = ncop * len;
result = gfc_constant_result (BT_CHARACTER, e->ts.kind, &e->where);
- if (ncopies == 0)
+ if (ncop == 0)
{
result->value.character.string = gfc_getmem (1);
result->value.character.length = 0;
result->value.character.length = nlen;
result->value.character.string = gfc_getmem (nlen + 1);
- for (i = 0; i < ncopies; i++)
+ for (i = 0; i < ncop; i++)
for (j = 0; j < len; j++)
- result->value.character.string[j + i * len] =
- e->value.character.string[j];
+ result->value.character.string[j + i * len]
+ = e->value.character.string[j];
result->value.character.string[nlen] = '\0'; /* For debugger */
return result;
/* This one is a bear, but mainly has to do with shuffling elements. */
gfc_expr *
-gfc_simplify_reshape (gfc_expr * source, gfc_expr * shape_exp,
- gfc_expr * pad, gfc_expr * order_exp)
+gfc_simplify_reshape (gfc_expr *source, gfc_expr *shape_exp,
+ gfc_expr *pad, gfc_expr *order_exp)
{
-
int order[GFC_MAX_DIMENSIONS], shape[GFC_MAX_DIMENSIONS];
int i, rank, npad, x[GFC_MAX_DIMENSIONS];
gfc_constructor *head, *tail;
return NULL;
if (pad != NULL
- && (pad->expr_type != EXPR_ARRAY
- || !gfc_is_constant_expr (pad)))
+ && (pad->expr_type != EXPR_ARRAY || !gfc_is_constant_expr (pad)))
return NULL;
if (order_exp != NULL
{
for (i = 0; i < rank; i++)
order[i] = i;
-
}
else
{
-
for (i = 0; i < rank; i++)
x[i] = 0;
e = gfc_get_array_element (order_exp, i);
if (e == NULL)
{
- gfc_error
- ("ORDER parameter of RESHAPE at %L is not the same size "
- "as SHAPE parameter", &order_exp->where);
+ gfc_error ("ORDER parameter of RESHAPE at %L is not the same "
+ "size as SHAPE parameter", &order_exp->where);
goto bad_reshape;
}
if (npad == 0)
{
- gfc_error
- ("PAD parameter required for short SOURCE parameter at %L",
- &source->where);
+ gfc_error ("PAD parameter required for short SOURCE parameter "
+ "at %L", &source->where);
goto bad_reshape;
}
}
-#if defined(GFC_MPFR_TOO_OLD)
gfc_expr *
-gfc_simplify_rrspacing (gfc_expr * x)
-{
- gfc_expr *result;
- mpfr_t absv, log2, exp, frac, pow2;
- int i, p;
-
- if (x->expr_type != EXPR_CONSTANT)
- return NULL;
-
- i = gfc_validate_kind (x->ts.type, x->ts.kind, false);
-
- result = gfc_constant_result (BT_REAL, x->ts.kind, &x->where);
-
- p = gfc_real_kinds[i].digits;
-
- gfc_set_model_kind (x->ts.kind);
-
- if (mpfr_sgn (x->value.real) == 0)
- {
- mpfr_set_ui (result->value.real, 0, GFC_RND_MODE);
- return result;
- }
-
- mpfr_init (log2);
- mpfr_init (absv);
- mpfr_init (frac);
- mpfr_init (pow2);
- mpfr_init (exp);
-
- mpfr_abs (absv, x->value.real, GFC_RND_MODE);
- mpfr_log2 (log2, absv, GFC_RND_MODE);
-
- mpfr_trunc (log2, log2);
- mpfr_add_ui (exp, log2, 1, GFC_RND_MODE);
-
- mpfr_ui_pow (pow2, 2, exp, GFC_RND_MODE);
- mpfr_div (frac, absv, pow2, GFC_RND_MODE);
-
- mpfr_mul_2exp (result->value.real, frac, (unsigned long)p, GFC_RND_MODE);
-
- mpfr_clear (log2);
- mpfr_clear (absv);
- mpfr_clear (frac);
- mpfr_clear (pow2);
- mpfr_clear (exp);
-
- return range_check (result, "RRSPACING");
-}
-#else
-gfc_expr *
-gfc_simplify_rrspacing (gfc_expr * x)
+gfc_simplify_rrspacing (gfc_expr *x)
{
gfc_expr *result;
int i;
mpfr_abs (result->value.real, x->value.real, GFC_RND_MODE);
- /* Special case x = 0 and 0. */
+ /* Special case x = -0 and 0. */
if (mpfr_sgn (result->value.real) == 0)
{
mpfr_set_ui (result->value.real, 0, GFC_RND_MODE);
return range_check (result, "RRSPACING");
}
-#endif
+
gfc_expr *
-gfc_simplify_scale (gfc_expr * x, gfc_expr * i)
+gfc_simplify_scale (gfc_expr *x, gfc_expr *i)
{
int k, neg_flag, power, exp_range;
mpfr_t scale, radix;
gfc_expr *
-gfc_simplify_scan (gfc_expr * e, gfc_expr * c, gfc_expr * b)
+gfc_simplify_scan (gfc_expr *e, gfc_expr *c, gfc_expr *b, gfc_expr *kind)
{
gfc_expr *result;
int back;
size_t i;
size_t indx, len, lenc;
+ int k = get_kind (BT_INTEGER, kind, "SCAN", gfc_default_integer_kind);
+
+ if (k == -1)
+ return &gfc_bad_expr;
if (e->expr_type != EXPR_CONSTANT || c->expr_type != EXPR_CONSTANT)
return NULL;
else
back = 0;
- result = gfc_constant_result (BT_INTEGER, gfc_default_integer_kind,
- &e->where);
+ result = gfc_constant_result (BT_INTEGER, k, &e->where);
len = e->value.character.length;
lenc = c->value.character.length;
else
{
if (back == 0)
- {
- indx =
- strcspn (e->value.character.string, c->value.character.string) + 1;
- if (indx > len)
- indx = 0;
- }
+ {
+ indx = strcspn (e->value.character.string, c->value.character.string)
+ + 1;
+ if (indx > len)
+ indx = 0;
+ }
else
- {
- i = 0;
- for (indx = len; indx > 0; indx--)
- {
- for (i = 0; i < lenc; i++)
- {
- if (c->value.character.string[i]
- == e->value.character.string[indx - 1])
- break;
- }
- if (i < lenc)
- break;
- }
- }
+ {
+ i = 0;
+ for (indx = len; indx > 0; indx--)
+ {
+ for (i = 0; i < lenc; i++)
+ {
+ if (c->value.character.string[i]
+ == e->value.character.string[indx - 1])
+ break;
+ }
+ if (i < lenc)
+ break;
+ }
+ }
}
mpz_set_ui (result->value.integer, indx);
return range_check (result, "SCAN");
gfc_expr *
-gfc_simplify_selected_int_kind (gfc_expr * e)
+gfc_simplify_selected_int_kind (gfc_expr *e)
{
int i, kind, range;
gfc_expr *result;
gfc_expr *
-gfc_simplify_selected_real_kind (gfc_expr * p, gfc_expr * q)
+gfc_simplify_selected_real_kind (gfc_expr *p, gfc_expr *q)
{
int range, precision, i, kind, found_precision, found_range;
gfc_expr *result;
gfc_expr *
-gfc_simplify_set_exponent (gfc_expr * x, gfc_expr * i)
+gfc_simplify_set_exponent (gfc_expr *x, gfc_expr *i)
{
gfc_expr *result;
mpfr_t exp, absv, log2, pow2, frac;
gfc_expr *
-gfc_simplify_shape (gfc_expr * source)
+gfc_simplify_shape (gfc_expr *source)
{
mpz_t shape[GFC_MAX_DIMENSIONS];
gfc_expr *result, *e, *f;
{
mpz_set_ui (e->value.integer, n + 1);
- f = gfc_simplify_size (source, e);
+ f = gfc_simplify_size (source, e, NULL);
gfc_free_expr (e);
if (f == NULL)
{
gfc_expr *
-gfc_simplify_size (gfc_expr * array, gfc_expr * dim)
+gfc_simplify_size (gfc_expr *array, gfc_expr *dim, gfc_expr *kind)
{
mpz_t size;
gfc_expr *result;
int d;
+ int k = get_kind (BT_INTEGER, kind, "SCAN", gfc_default_integer_kind);
+
+ if (k == -1)
+ return &gfc_bad_expr;
if (dim == NULL)
{
return NULL;
}
- result = gfc_constant_result (BT_INTEGER, gfc_default_integer_kind,
- &array->where);
-
+ result = gfc_constant_result (BT_INTEGER, k, &array->where);
mpz_set (result->value.integer, size);
-
return result;
}
gfc_expr *
-gfc_simplify_sign (gfc_expr * x, gfc_expr * y)
+gfc_simplify_sign (gfc_expr *x, gfc_expr *y)
{
gfc_expr *result;
case BT_REAL:
/* TODO: Handle -0.0 and +0.0 correctly on machines that support
- it. */
+ it. */
mpfr_abs (result->value.real, x->value.real, GFC_RND_MODE);
if (mpfr_sgn (y->value.real) < 0)
mpfr_neg (result->value.real, result->value.real, GFC_RND_MODE);
gfc_expr *
-gfc_simplify_sin (gfc_expr * x)
+gfc_simplify_sin (gfc_expr *x)
{
gfc_expr *result;
mpfr_t xp, xq;
gfc_expr *
-gfc_simplify_sinh (gfc_expr * x)
+gfc_simplify_sinh (gfc_expr *x)
{
gfc_expr *result;
result = gfc_constant_result (x->ts.type, x->ts.kind, &x->where);
- mpfr_sinh(result->value.real, x->value.real, GFC_RND_MODE);
+ mpfr_sinh (result->value.real, x->value.real, GFC_RND_MODE);
return range_check (result, "SINH");
}
single precision. TODO: Rounding! */
gfc_expr *
-gfc_simplify_sngl (gfc_expr * a)
+gfc_simplify_sngl (gfc_expr *a)
{
gfc_expr *result;
return range_check (result, "SNGL");
}
-#if defined(GFC_MPFR_TOO_OLD)
-gfc_expr *
-gfc_simplify_spacing (gfc_expr * x)
-{
- gfc_expr *result;
- mpfr_t absv, log2;
- long diff;
- int i, p;
-
- if (x->expr_type != EXPR_CONSTANT)
- return NULL;
-
- i = gfc_validate_kind (x->ts.type, x->ts.kind, false);
-
- p = gfc_real_kinds[i].digits;
-
- result = gfc_constant_result (BT_REAL, x->ts.kind, &x->where);
-
- gfc_set_model_kind (x->ts.kind);
-
- /* Special case x = 0 and -0. */
- mpfr_init (absv);
- mpfr_abs (absv, x->value.real, GFC_RND_MODE);
- if (mpfr_sgn (absv) == 0)
- {
- mpfr_set (result->value.real, gfc_real_kinds[i].tiny, GFC_RND_MODE);
- return result;
- }
-
- mpfr_init (log2);
- mpfr_log2 (log2, absv, GFC_RND_MODE);
- mpfr_trunc (log2, log2);
-
- mpfr_add_ui (log2, log2, 1, GFC_RND_MODE);
-
- /* FIXME: We should be using mpfr_get_si here, but this function is
- not available with the version of mpfr distributed with gmp (as of
- 2004-09-17). Replace once mpfr has been imported into the gcc cvs
- tree. */
- diff = (long)mpfr_get_d (log2, GFC_RND_MODE) - (long)p;
- mpfr_set_ui (result->value.real, 1, GFC_RND_MODE);
- mpfr_mul_2si (result->value.real, result->value.real, diff, GFC_RND_MODE);
-
- mpfr_clear (log2);
- mpfr_clear (absv);
- if (mpfr_cmp (result->value.real, gfc_real_kinds[i].tiny) < 0)
- mpfr_set (result->value.real, gfc_real_kinds[i].tiny, GFC_RND_MODE);
-
- return range_check (result, "SPACING");
-}
-#else
gfc_expr *
-gfc_simplify_spacing (gfc_expr * x)
+gfc_simplify_spacing (gfc_expr *x)
{
gfc_expr *result;
int i;
return range_check (result, "SPACING");
}
-#endif
+
gfc_expr *
-gfc_simplify_sqrt (gfc_expr * e)
+gfc_simplify_sqrt (gfc_expr *e)
{
gfc_expr *result;
mpfr_t ac, ad, s, t, w;
case BT_COMPLEX:
/* Formula taken from Numerical Recipes to avoid over- and
- underflow. */
+ underflow. */
gfc_set_model (e->value.real);
mpfr_init (ac);
if (mpfr_cmp_ui (e->value.complex.r, 0) == 0
&& mpfr_cmp_ui (e->value.complex.i, 0) == 0)
{
-
mpfr_set_ui (result->value.complex.r, 0, GFC_RND_MODE);
mpfr_set_ui (result->value.complex.i, 0, GFC_RND_MODE);
break;
gfc_expr *
-gfc_simplify_tan (gfc_expr * x)
+gfc_simplify_tan (gfc_expr *x)
{
int i;
gfc_expr *result;
gfc_expr *
-gfc_simplify_tanh (gfc_expr * x)
+gfc_simplify_tanh (gfc_expr *x)
{
gfc_expr *result;
gfc_expr *
-gfc_simplify_tiny (gfc_expr * e)
+gfc_simplify_tiny (gfc_expr *e)
{
gfc_expr *result;
int i;
gfc_expr *
-gfc_simplify_transfer (gfc_expr * source, gfc_expr *mold, gfc_expr * size)
+gfc_simplify_transfer (gfc_expr *source, gfc_expr *mold, gfc_expr *size)
{
+ gfc_expr *result;
+ gfc_expr *mold_element;
+ size_t source_size;
+ size_t result_size;
+ size_t result_elt_size;
+ size_t buffer_size;
+ mpz_t tmp;
+ unsigned char *buffer;
+
+ if (!gfc_is_constant_expr (source)
+ || !gfc_is_constant_expr (size))
+ return NULL;
- /* Reference mold and size to suppress warning. */
- if (gfc_init_expr && (mold || size))
- gfc_error ("TRANSFER intrinsic not implemented for initialization at %L",
- &source->where);
+ /* Calculate the size of the source. */
+ if (source->expr_type == EXPR_ARRAY
+ && gfc_array_size (source, &tmp) == FAILURE)
+ gfc_internal_error ("Failure getting length of a constant array.");
- return NULL;
+ source_size = gfc_target_expr_size (source);
+
+ /* Create an empty new expression with the appropriate characteristics. */
+ result = gfc_constant_result (mold->ts.type, mold->ts.kind,
+ &source->where);
+ result->ts = mold->ts;
+
+ mold_element = mold->expr_type == EXPR_ARRAY
+ ? mold->value.constructor->expr
+ : mold;
+
+ /* Set result character length, if needed. Note that this needs to be
+ set even for array expressions, in order to pass this information into
+ gfc_target_interpret_expr. */
+ if (result->ts.type == BT_CHARACTER)
+ result->value.character.length = mold_element->value.character.length;
+
+ /* Set the number of elements in the result, and determine its size. */
+ result_elt_size = gfc_target_expr_size (mold_element);
+ if (mold->expr_type == EXPR_ARRAY || mold->rank || size)
+ {
+ int result_length;
+
+ result->expr_type = EXPR_ARRAY;
+ result->rank = 1;
+
+ if (size)
+ result_length = (size_t)mpz_get_ui (size->value.integer);
+ else
+ {
+ result_length = source_size / result_elt_size;
+ if (result_length * result_elt_size < source_size)
+ result_length += 1;
+ }
+
+ result->shape = gfc_get_shape (1);
+ mpz_init_set_ui (result->shape[0], result_length);
+
+ result_size = result_length * result_elt_size;
+ }
+ else
+ {
+ result->rank = 0;
+ result_size = result_elt_size;
+ }
+
+ /* Allocate the buffer to store the binary version of the source. */
+ buffer_size = MAX (source_size, result_size);
+ buffer = (unsigned char*)alloca (buffer_size);
+
+ /* Now write source to the buffer. */
+ gfc_target_encode_expr (source, buffer, buffer_size);
+
+ /* And read the buffer back into the new expression. */
+ gfc_target_interpret_expr (buffer, buffer_size, result);
+
+ return result;
}
gfc_expr *
-gfc_simplify_trim (gfc_expr * e)
+gfc_simplify_trim (gfc_expr *e)
{
gfc_expr *result;
int count, i, len, lentrim;
gfc_expr *
-gfc_simplify_ubound (gfc_expr * array, gfc_expr * dim)
+gfc_simplify_ubound (gfc_expr *array, gfc_expr *dim, gfc_expr *kind)
{
- return simplify_bound (array, dim, 1);
+ return simplify_bound (array, dim, kind, 1);
}
gfc_expr *
-gfc_simplify_verify (gfc_expr * s, gfc_expr * set, gfc_expr * b)
+gfc_simplify_verify (gfc_expr *s, gfc_expr *set, gfc_expr *b, gfc_expr *kind)
{
gfc_expr *result;
int back;
size_t index, len, lenset;
size_t i;
+ int k = get_kind (BT_INTEGER, kind, "VERIFY", gfc_default_integer_kind);
+
+ if (k == -1)
+ return &gfc_bad_expr;
if (s->expr_type != EXPR_CONSTANT || set->expr_type != EXPR_CONSTANT)
return NULL;
else
back = 0;
- result = gfc_constant_result (BT_INTEGER, gfc_default_integer_kind,
- &s->where);
+ result = gfc_constant_result (BT_INTEGER, k, &s->where);
len = s->value.character.length;
lenset = set->value.character.length;
return result;
}
- index =
- strspn (s->value.character.string, set->value.character.string) + 1;
+ index = strspn (s->value.character.string, set->value.character.string)
+ + 1;
if (index > len)
index = 0;
return result;
}
for (index = len; index > 0; index --)
- {
- for (i = 0; i < lenset; i++)
- {
- if (s->value.character.string[index - 1]
- == set->value.character.string[i])
- break;
- }
- if (i == lenset)
- break;
- }
+ {
+ for (i = 0; i < lenset; i++)
+ {
+ if (s->value.character.string[index - 1]
+ == set->value.character.string[i])
+ break;
+ }
+ if (i == lenset)
+ break;
+ }
}
mpz_set_ui (result->value.integer, index);
gfc_expr *
-gfc_simplify_xor (gfc_expr * x, gfc_expr * y)
+gfc_simplify_xor (gfc_expr *x, gfc_expr *y)
{
gfc_expr *result;
int kind;
else /* BT_LOGICAL */
{
result = gfc_constant_result (BT_LOGICAL, kind, &x->where);
- result->value.logical = (x->value.logical && ! y->value.logical)
- || (! x->value.logical && y->value.logical);
+ result->value.logical = (x->value.logical && !y->value.logical)
+ || (!x->value.logical && y->value.logical);
}
return range_check (result, "XOR");
}
-
/****************** Constant simplification *****************/
/* Master function to convert one constant to another. While this is
do_simplify(). */
gfc_expr *
-gfc_convert_constant (gfc_expr * e, bt type, int kind)
+gfc_convert_constant (gfc_expr *e, bt type, int kind)
{
gfc_expr *g, *result, *(*f) (gfc_expr *, int);
gfc_constructor *head, *c, *tail = NULL;
return result;
}
-
-
-/****************** Helper functions ***********************/
-
-/* Given a collating table, create the inverse table. */
-
-static void
-invert_table (const int *table, int *xtable)
-{
- int i;
-
- for (i = 0; i < 256; i++)
- xtable[i] = 0;
-
- for (i = 0; i < 256; i++)
- xtable[table[i]] = i;
-}
-
-
-void
-gfc_simplify_init_1 (void)
-{
-
- invert_table (ascii_table, xascii_table);
-}