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authorfxcoudert <fxcoudert@138bc75d-0d04-0410-961f-82ee72b054a4>2005-10-03 07:22:20 +0000
committerfxcoudert <fxcoudert@138bc75d-0d04-0410-961f-82ee72b054a4>2005-10-03 07:22:20 +0000
commit920e54ef4976f86f653c39104b54f82d7a38ff31 (patch)
tree8bb857b1bc8bb03e3ba5509a8bba4513942fff4a /libgfortran/generated/pow_c10_i8.c
parente1e3944758567303042726f87a25bf01e369dea1 (diff)
downloadgcc-920e54ef4976f86f653c39104b54f82d7a38ff31.tar.gz
PR libfortran/19308
PR fortran/20120 PR libfortran/22437 * Makefile.am: Add generated files for large real and integers kinds. Add a rule to create the kinds.inc c99_protos.inc files. Use kinds.inc to preprocess Fortran generated files. * libgfortran.h: Add macro definitions for GFC_INTEGER_16_HUGE, GFC_REAL_10_HUGE and GFC_REAL_16_HUGE. Add types gfc_array_i16, gfc_array_r10, gfc_array_r16, gfc_array_c10, gfc_array_c16, gfc_array_l16. * mk-kinds-h.sh: Define macros HAVE_GFC_LOGICAL_* and HAVE_GFC_COMPLEX_* when these types are available. * intrinsics/ishftc.c (ishftc16): New function for GFC_INTEGER_16. * m4/all.m4, m4/any.m4, m4/count.m4, m4/cshift1.m4, m4/dotprod.m4, m4/dotprodc.m4, m4/dotprodl.m4, m4/eoshift1.m4, m4/eoshift3.m4, m4/exponent.m4, m4/fraction.m4, m4/in_pack.m4, m4/in_unpack.m4, m4/matmul.m4, m4/matmull.m4, m4/maxloc0.m4, m4/maxloc1.m4, m4/maxval.m4, m4/minloc0.m4, m4/minloc1.m4, m4/minval.m4, m4/mtype.m4, m4/nearest.m4, m4/pow.m4, m4/product.m4, m4/reshape.m4, m4/set_exponent.m4, m4/shape.m4, m4/specific.m4, m4/specific2.m4, m4/sum.m4, m4/transpose.m4: Protect generated functions with appropriate "#if defined (HAVE_GFC_type_kind)" preprocessor directives. * Makefile.in: Regenerate. * all files in generated/: Regenerate. * f95-lang.c (DO_DEFINE_MATH_BUILTIN): Add support for long double builtin function. (gfc_init_builtin_functions): Add mfunc_longdouble, mfunc_clongdouble and func_clongdouble_longdouble trees. Build them for round, trunc, cabs, copysign and pow functions. * iresolve.c (gfc_resolve_reshape, gfc_resolve_transpose): Add case for kind 10 and 16. * trans-decl.c: Add trees for cpowl10, cpowl16, ishftc16, exponent10 and exponent16. (gfc_build_intrinsic_function_decls): Build nodes for int16, real10, real16, complex10 and complex16 types. Build all possible combinations for function _gfortran_pow_?n_?n. Build function calls cpowl10, cpowl16, ishftc16, exponent10 and exponent16. * trans-expr.c (gfc_conv_power_op): Add case for integer(16), real(10) and real(16). * trans-intrinsic.c: Add suppport for long double builtin functions in BUILT_IN_FUNCTION, LIBM_FUNCTION and LIBF_FUNCTION macros. (gfc_conv_intrinsic_aint): Add case for integer(16), real(10) and real(16) kinds. (gfc_build_intrinsic_lib_fndecls): Add support for real10_decl and real16_decl in library functions. (gfc_get_intrinsic_lib_fndecl): Add cases for real and complex kinds 10 and 16. (gfc_conv_intrinsic_exponent): Add cases for real(10) and real(16) kinds. (gfc_conv_intrinsic_sign): Likewise. (gfc_conv_intrinsic_ishftc): Add case for integer(16) kind. * trans-types.c (gfc_get_int_type, gfc_get_real_type, gfc_get_complex_type, gfc_get_logical_type): Doesn't error out in the case of kinds not available. * trans.h: Declare trees for cpowl10, cpowl16, ishftc16, exponent10 and exponent16. * gfortran.dg/large_real_kind_2.F90: New test. * gfortran.dg/large_integer_kind_2.f90: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@104889 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libgfortran/generated/pow_c10_i8.c')
-rw-r--r--libgfortran/generated/pow_c10_i8.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/libgfortran/generated/pow_c10_i8.c b/libgfortran/generated/pow_c10_i8.c
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+/* Support routines for the intrinsic power (**) operator.
+ Copyright 2004 Free Software Foundation, Inc.
+ Contributed by Paul Brook
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran 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 of the License, or (at your option) any later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file. (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public
+License along with libgfortran; see the file COPYING. If not,
+write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
+
+#include "config.h"
+#include "libgfortran.h"
+
+/* Use Binary Method to calculate the powi. This is not an optimal but
+ a simple and reasonable arithmetic. See section 4.6.3, "Evaluation of
+ Powers" of Donald E. Knuth, "Seminumerical Algorithms", Vol. 2, "The Art
+ of Computer Programming", 3rd Edition, 1998. */
+
+#if defined (HAVE_GFC_COMPLEX_10) && defined (HAVE_GFC_INTEGER_8)
+
+GFC_COMPLEX_10 pow_c10_i8 (GFC_COMPLEX_10 a, GFC_INTEGER_8 b);
+export_proto(pow_c10_i8);
+
+GFC_COMPLEX_10
+pow_c10_i8 (GFC_COMPLEX_10 a, GFC_INTEGER_8 b)
+{
+ GFC_COMPLEX_10 pow, x;
+ GFC_INTEGER_8 n, u;
+
+ n = b;
+ x = a;
+ pow = 1;
+ if (n != 0)
+ {
+ if (n < 0)
+ {
+
+ n = -n;
+ x = pow / x;
+ }
+ u = n;
+ for (;;)
+ {
+ if (u & 1)
+ pow *= x;
+ u >>= 1;
+ if (u)
+ x *= x;
+ else
+ break;
+ }
+ }
+ return pow;
+}
+
+#endif