vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/* mpn_sqr -- square natural numbers.
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Copyright 1991, 1993, 1994, 1996-2003, 2005, 2008, 2009 Free Software
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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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#include "longlong.h"
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void
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mpn_sqr (mp_ptr p, mp_srcptr a, mp_size_t n)
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{
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ASSERT (n >= 1);
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ASSERT (! MPN_OVERLAP_P (p, 2 * n, a, n));
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if (BELOW_THRESHOLD (n, SQR_BASECASE_THRESHOLD))
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{ /* mul_basecase is faster than sqr_basecase on small sizes sometimes */
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mpn_mul_basecase (p, a, n, a, n);
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}
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else if (BELOW_THRESHOLD (n, SQR_TOOM2_THRESHOLD))
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{
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mpn_sqr_basecase (p, a, n);
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}
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else if (BELOW_THRESHOLD (n, SQR_TOOM3_THRESHOLD))
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{
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/* Allocate workspace of fixed size on stack: fast! */
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mp_limb_t ws[mpn_toom2_sqr_itch (SQR_TOOM3_THRESHOLD_LIMIT-1)];
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ASSERT (SQR_TOOM3_THRESHOLD <= SQR_TOOM3_THRESHOLD_LIMIT);
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mpn_toom2_sqr (p, a, n, ws);
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}
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else if (BELOW_THRESHOLD (n, SQR_TOOM4_THRESHOLD))
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{
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mp_ptr ws;
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TMP_SDECL;
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TMP_SMARK;
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ws = TMP_SALLOC_LIMBS (mpn_toom3_sqr_itch (n));
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mpn_toom3_sqr (p, a, n, ws);
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TMP_SFREE;
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}
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else if (BELOW_THRESHOLD (n, SQR_TOOM6_THRESHOLD))
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{
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mp_ptr ws;
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TMP_SDECL;
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TMP_SMARK;
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ws = TMP_SALLOC_LIMBS (mpn_toom4_sqr_itch (n));
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mpn_toom4_sqr (p, a, n, ws);
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TMP_SFREE;
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}
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else if (BELOW_THRESHOLD (n, SQR_TOOM8_THRESHOLD))
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{
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mp_ptr ws;
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TMP_SDECL;
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TMP_SMARK;
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ws = TMP_SALLOC_LIMBS (mpn_toom6_sqr_itch (n));
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mpn_toom6_sqr (p, a, n, ws);
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TMP_SFREE;
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}
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else if (BELOW_THRESHOLD (n, SQR_FFT_THRESHOLD))
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{
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mp_ptr ws;
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TMP_DECL;
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TMP_MARK;
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ws = TMP_ALLOC_LIMBS (mpn_toom8_sqr_itch (n));
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mpn_toom8_sqr (p, a, n, ws);
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TMP_FREE;
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}
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else
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{
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/* The current FFT code allocates its own space. That should probably
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change. */
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mpn_fft_mul (p, a, n, a, n);
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}
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}
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