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4c74403188
Change-Id: Iae65e95cfa0d92091b8b0a424ae36d88efa76aa9 Reviewed-on: https://review.haiku-os.org/c/buildtools/+/3020 Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/* mpn_sec_sqr.
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Contributed to the GNU project by Torbjörn Granlund.
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Copyright 2013, 2014 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of either:
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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or
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* the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any
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later version.
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or both in parallel, as here.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received copies of the GNU General Public License and the
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GNU Lesser General Public License along with the GNU MP Library. If not,
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see https://www.gnu.org/licenses/. */
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#include "gmp-impl.h"
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#if ! HAVE_NATIVE_mpn_sqr_basecase
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/* The limit of the generic code is SQR_TOOM2_THRESHOLD. */
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#define SQR_BASECASE_LIM SQR_TOOM2_THRESHOLD
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#endif
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#if HAVE_NATIVE_mpn_sqr_basecase
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#ifdef TUNE_SQR_TOOM2_MAX
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/* We slightly abuse TUNE_SQR_TOOM2_MAX here. If it is set for an assembly
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mpn_sqr_basecase, it comes from SQR_TOOM2_THRESHOLD_MAX in the assembly
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file. An assembly mpn_sqr_basecase that does not define it should allow
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any size. */
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#define SQR_BASECASE_LIM SQR_TOOM2_THRESHOLD
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#endif
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#endif
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#ifdef WANT_FAT_BINARY
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/* For fat builds, we use SQR_TOOM2_THRESHOLD which will expand to a read from
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__gmpn_cpuvec. Perhaps any possible sqr_basecase.asm allow any size, and we
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limit the use unnecessarily. We cannot tell, so play it safe. FIXME. */
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#define SQR_BASECASE_LIM SQR_TOOM2_THRESHOLD
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#endif
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void
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mpn_sec_sqr (mp_ptr rp,
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mp_srcptr ap, mp_size_t an,
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mp_ptr tp)
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{
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#ifndef SQR_BASECASE_LIM
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/* If SQR_BASECASE_LIM is now not defined, use mpn_sqr_basecase for any operand
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size. */
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mpn_sqr_basecase (rp, ap, an);
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#else
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/* Else use mpn_mul_basecase. */
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mpn_mul_basecase (rp, ap, an, ap, an);
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#endif
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}
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mp_size_t
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mpn_sec_sqr_itch (mp_size_t an)
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{
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return 0;
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}
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