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228 lines
6.2 KiB
C
228 lines
6.2 KiB
C
/* Stub for defining degree-valued trigonometric functions in libgfortran.
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Copyright (C) 2020-2024 Free Software Foundation, Inc.
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Contributed by Steven G. Kargl <kargl@gcc.gnu.org>
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and Fritz Reese <foreese@gcc.gnu.org>
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This file is part of the GNU Fortran runtime library (libgfortran).
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Libgfortran is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 3 of the License, or (at your option) any later version.
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Libgfortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/*
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This replaces all GMP/MPFR functions used by trigd.inc with native versions.
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The precision is defined by FTYPE defined before including this file.
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The module which includes this file must define the following:
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KIND -- floating point kind (4, 8, 10, 16)
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HAVE_INFINITY_KIND -- defined iff the platform has GFC_REAL_<KIND>_INFINITY
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TINY [optional] -- subtract from 1 under the above condition if set
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COSD_SMALL [optional] -- for x <= COSD_SMALL, COSD(x) = 1 if set
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SIND_SMALL [optional] -- for x <= SIND_SMALL, SIND(x) = D2R(x) if set
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COSD30 -- literal value of COSD(30) to the precision of FTYPE
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PIO180H -- upper bits of pi/180 for FMA
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PIO180L -- lower bits of pi/180 for FMA
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*/
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/* FTYPE := GFC_REAL_<K> */
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#define FTYPE CONCAT_EXPAND(GFC_REAL_,KIND)
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/* LITERAL_SUFFIX := GFC_REAL_<K>_LITERAL_SUFFIX */
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#define LITERAL_SUFFIX CONCAT_EXPAND(FTYPE,_LITERAL_SUFFIX)
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/* LITERAL(X) := GFC_REAL_<K>_LITERAL(X) */
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#define LITERAL(x) CONCAT_EXPAND(x,LITERAL_SUFFIX)
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#define SIND CONCAT_EXPAND(sind_r, KIND)
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#define COSD CONCAT_EXPAND(cosd_r, KIND)
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#define TAND CONCAT_EXPAND(tand_r, KIND)
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#ifdef HAVE_INFINITY_KIND
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/* GFC_REAL_X_INFINITY */
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#define INFINITY_KIND CONCAT_EXPAND(FTYPE, _INFINITY)
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#else
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/* GFC_REAL_X_HUGE */
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#define INFINITY_KIND CONCAT_EXPAND(FTYPE, _HUGE)
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#endif
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#define CONCAT(x,y) x ## y
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#define CONCAT_EXPAND(x,y) CONCAT(x,y)
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#ifndef COPYSIGN
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#define COPYSIGN LITERAL(copysign)
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#define FMOD LITERAL(fmod)
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#define FABS LITERAL(fabs)
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#define FMA LITERAL(fma)
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#define SIN LITERAL(sin)
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#define COS LITERAL(cos)
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#define TAN LITERAL(tan)
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#endif
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#ifdef TINY
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#define TINY_LITERAL LITERAL(TINY)
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#endif
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#ifdef COSD_SMALL
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#define COSD_SMALL_LITERAL LITERAL(COSD_SMALL)
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#endif
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#ifdef SIND_SMALL
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#define SIND_SMALL_LITERAL LITERAL(SIND_SMALL)
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#endif
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#define COSD30_LITERAL LITERAL(COSD30)
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#define PIO180H_LITERAL LITERAL(PIO180H)
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#define PIO180L_LITERAL LITERAL(PIO180L)
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#define ITYPE int
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#define GFC_RND_MODE 0
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#define RETTYPE FTYPE
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#define RETURN(x) return (x)
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#define ISFINITE(x) isfinite(x)
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#define mpfr_init(x) do { } while (0)
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#define mpfr_init_set_ui(x, v, rnd) (x = (v))
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#define mpfr_clear(x) do { } while (0)
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#define mpfr_swap(x, y) do { FTYPE z = y; y = x; x = z; } while (0)
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#define mpfr_copysign(rop, op1, op2, rnd) rop = COPYSIGN((op1), (op2))
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#define mpfr_fmod(rop, x, d, rnd) (rop = FMOD((x), (d)))
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#define mpfr_abs(rop, op, rnd) (rop = FABS(op))
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#define mpfr_cmp_ld(x, y) ((x) - (y))
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#define mpfr_cmp_ui(x, n) ((x) - (n))
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#define mpfr_zero_p(x) ((x) == 0)
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#define mpfr_set(rop, x, rnd) (rop = (x))
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#define mpfr_set_zero(rop, s) (rop = COPYSIGN(0, (s)))
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#define mpfr_set_inf(rop, s) (rop = ((s)*-2 + 1) * INFINITY_KIND)
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#define mpfr_set_ui(rop, n, rnd) (rop = (n))
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#define mpfr_set_si(rop, n, rnd) (rop = (n))
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#define mpfr_set_ld(rop, x, rnd) (rop = (x))
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#define mpfr_set_si_2exp(rop, op, exp, rnd) (rop = (0x1.p##exp))
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#define mpfr_get_z(rop, x, rnd) ((rop = (int)(x)), (rop - (x)))
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#define mpfr_mul(rop, op1, op2, rnd) (rop = ((op1) * (op2)))
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#define mpfr_sub_d(rop, op1, op2, rnd) (rop = ((op1) - (op2)))
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#define mpfr_sub_ui(rop, op1, op2, rnd) (rop = ((op1) - (op2)))
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#define mpfr_sub(rop, op1, op2, rnd) (rop = ((op1) - (op2)))
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#define mpfr_ui_sub(rop, op1, op2, rnd) (rop = ((op1) - (op2)))
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#define mpfr_neg(rop, op, rnd) (rop = -(op))
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#define mpfr_sin(rop, x, rnd) (rop = SIN(x))
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#define mpfr_cos(rop, x, rnd) (rop = COS(x))
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#define mpfr_tan(rop, x, rnd) (rop = TAN(x))
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#define mpz_init(n) do { } while (0)
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#define mpz_clear(x) do { } while (0)
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#define mpz_cmp_ui(x, y) ((x) - (y))
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#define mpz_divisible_ui_p(n, d) ((n) % (d) == 0)
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#define D2R(x) (x = FMA((x), PIO180H_LITERAL, (x) * PIO180L_LITERAL))
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#define SET_COSD30(x) (x = COSD30_LITERAL)
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#ifdef SIND
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extern FTYPE SIND (FTYPE);
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export_proto (SIND);
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#endif
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#ifdef COSD
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extern FTYPE COSD (FTYPE);
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export_proto (COSD);
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#endif
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#ifdef TAND
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extern FTYPE TAND (FTYPE);
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export_proto (TAND);
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#endif
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#include "trigd.inc"
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#undef FTYPE
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#undef LITERAL_SUFFIX
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#undef LITERAL
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#undef CONCAT3
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#undef CONCAT3_EXPAND
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#undef CONCAT
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#undef CONCAT_EXPAND
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#undef SIND
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#undef COSD
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#undef TAND
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#undef INFINITY_KIND
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#undef COPYSIGN
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#undef FMOD
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#undef FABS
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#undef FMA
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#undef SIN
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#undef COS
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#undef TAN
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#undef TINY_LITERAL
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#undef COSD_SMALL_LITERAL
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#undef SIND_SMALL_LITERAL
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#undef COSD30_LITERAL
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#undef PIO180H_LITERAL
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#undef PIO180L_LITERAL
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#undef ITYPE
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#undef GFC_RND_MODE
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#undef RETTYPE
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#undef RETURN
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#undef ISFINITE
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#undef mpfr_signbit
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#undef mpfr_init
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#undef mpfr_init_set_ui
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#undef mpfr_clear
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#undef mpfr_swap
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#undef mpfr_fmod
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#undef mpfr_abs
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#undef mpfr_cmp_ld
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#undef mpfr_cmp_ui
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#undef mpfr_zero_p
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#undef mpfr_set
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#undef mpfr_set_zero
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#undef mpfr_set_inf
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#undef mpfr_set_ui
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#undef mpfr_set_si
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#undef mpfr_set_ld
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#undef mpfr_set_si_2exp
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#undef mpfr_get_z
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#undef mpfr_mul_si
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#undef mpfr_sub_d
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#undef mpfr_sub_ui
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#undef mpfr_sub
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#undef mpfr_ui_sub
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#undef mpfr_neg
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#undef mpfr_sin
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#undef mpfr_cos
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#undef mpfr_tan
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#undef mpz_init
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#undef mpz_clear
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#undef mpz_cmp_ui
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#undef mpz_divisible_ui_p
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#undef FMA
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#undef D2R
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#undef SET_COSD30
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/* vim: set ft=c: */
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