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Diffstat (limited to 'gmp/mpn/generic/toom8_sqr.c')
| -rw-r--r-- | gmp/mpn/generic/toom8_sqr.c | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/gmp/mpn/generic/toom8_sqr.c b/gmp/mpn/generic/toom8_sqr.c deleted file mode 100644 index 0c93678815..0000000000 --- a/gmp/mpn/generic/toom8_sqr.c +++ /dev/null @@ -1,226 +0,0 @@ -/* Implementation of the squaring algorithm with Toom-Cook 8.5-way. - - Contributed to the GNU project by Marco Bodrato. - - THE FUNCTION IN THIS FILE IS INTERNAL WITH A MUTABLE INTERFACE. IT IS ONLY - SAFE TO REACH IT THROUGH DOCUMENTED INTERFACES. IN FACT, IT IS ALMOST - GUARANTEED THAT IT WILL CHANGE OR DISAPPEAR IN A FUTURE GNU MP RELEASE. - -Copyright 2009, 2012 Free Software Foundation, Inc. - -This file is part of the GNU MP Library. - -The GNU MP Library is free software; you can redistribute it and/or modify -it under the terms of either: - - * the GNU Lesser General Public License as published by the Free - Software Foundation; either version 3 of the License, or (at your - option) any later version. - -or - - * 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. - -or both in parallel, as here. - -The GNU MP Library 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 copies of the GNU General Public License and the -GNU Lesser General Public License along with the GNU MP Library. If not, -see https://www.gnu.org/licenses/. */ - - -#include "gmp.h" -#include "gmp-impl.h" - -#if GMP_NUMB_BITS < 29 -#error Not implemented. -#endif - -#if GMP_NUMB_BITS < 43 -#define BIT_CORRECTION 1 -#define CORRECTION_BITS GMP_NUMB_BITS -#else -#define BIT_CORRECTION 0 -#define CORRECTION_BITS 0 -#endif - -#ifndef SQR_TOOM8_THRESHOLD -#define SQR_TOOM8_THRESHOLD MUL_TOOM8H_THRESHOLD -#endif - -#ifndef SQR_TOOM6_THRESHOLD -#define SQR_TOOM6_THRESHOLD MUL_TOOM6H_THRESHOLD -#endif - -#if TUNE_PROGRAM_BUILD -#define MAYBE_sqr_basecase 1 -#define MAYBE_sqr_above_basecase 1 -#define MAYBE_sqr_toom2 1 -#define MAYBE_sqr_above_toom2 1 -#define MAYBE_sqr_toom3 1 -#define MAYBE_sqr_above_toom3 1 -#define MAYBE_sqr_toom4 1 -#define MAYBE_sqr_above_toom4 1 -#define MAYBE_sqr_above_toom6 1 -#else -#define SQR_TOOM8_MAX \ - ((SQR_FFT_THRESHOLD <= MP_SIZE_T_MAX - (8*2-1+7)) ? \ - ((SQR_FFT_THRESHOLD+8*2-1+7)/8) \ - : MP_SIZE_T_MAX ) -#define MAYBE_sqr_basecase \ - (SQR_TOOM8_THRESHOLD < 8 * SQR_TOOM2_THRESHOLD) -#define MAYBE_sqr_above_basecase \ - (SQR_TOOM8_MAX >= SQR_TOOM2_THRESHOLD) -#define MAYBE_sqr_toom2 \ - (SQR_TOOM8_THRESHOLD < 8 * SQR_TOOM3_THRESHOLD) -#define MAYBE_sqr_above_toom2 \ - (SQR_TOOM8_MAX >= SQR_TOOM3_THRESHOLD) -#define MAYBE_sqr_toom3 \ - (SQR_TOOM8_THRESHOLD < 8 * SQR_TOOM4_THRESHOLD) -#define MAYBE_sqr_above_toom3 \ - (SQR_TOOM8_MAX >= SQR_TOOM4_THRESHOLD) -#define MAYBE_sqr_toom4 \ - (SQR_TOOM8_THRESHOLD < 8 * SQR_TOOM6_THRESHOLD) -#define MAYBE_sqr_above_toom4 \ - (SQR_TOOM8_MAX >= SQR_TOOM6_THRESHOLD) -#define MAYBE_sqr_above_toom6 \ - (SQR_TOOM8_MAX >= SQR_TOOM8_THRESHOLD) -#endif - -#define TOOM8_SQR_REC(p, a, f, p2, a2, n, ws) \ - do { \ - if (MAYBE_sqr_basecase && ( !MAYBE_sqr_above_basecase \ - || BELOW_THRESHOLD (n, SQR_TOOM2_THRESHOLD))) { \ - mpn_sqr_basecase (p, a, n); \ - if (f) mpn_sqr_basecase (p2, a2, n); \ - } else if (MAYBE_sqr_toom2 && ( !MAYBE_sqr_above_toom2 \ - || BELOW_THRESHOLD (n, SQR_TOOM3_THRESHOLD))) { \ - mpn_toom2_sqr (p, a, n, ws); \ - if (f) mpn_toom2_sqr (p2, a2, n, ws); \ - } else if (MAYBE_sqr_toom3 && ( !MAYBE_sqr_above_toom3 \ - || BELOW_THRESHOLD (n, SQR_TOOM4_THRESHOLD))) { \ - mpn_toom3_sqr (p, a, n, ws); \ - if (f) mpn_toom3_sqr (p2, a2, n, ws); \ - } else if (MAYBE_sqr_toom4 && ( !MAYBE_sqr_above_toom4 \ - || BELOW_THRESHOLD (n, SQR_TOOM6_THRESHOLD))) { \ - mpn_toom4_sqr (p, a, n, ws); \ - if (f) mpn_toom4_sqr (p2, a2, n, ws); \ - } else if (! MAYBE_sqr_above_toom6 \ - || BELOW_THRESHOLD (n, SQR_TOOM8_THRESHOLD)) { \ - mpn_toom6_sqr (p, a, n, ws); \ - if (f) mpn_toom6_sqr (p2, a2, n, ws); \ - } else { \ - mpn_toom8_sqr (p, a, n, ws); \ - if (f) mpn_toom8_sqr (p2, a2, n, ws); \ - } \ - } while (0) - -void -mpn_toom8_sqr (mp_ptr pp, mp_srcptr ap, mp_size_t an, mp_ptr scratch) -{ - mp_size_t n, s; - - /***************************** decomposition *******************************/ - - ASSERT ( an >= 40 ); - - n = 1 + ((an - 1)>>3); - - s = an - 7 * n; - - ASSERT (0 < s && s <= n); - ASSERT ( s + s > 3 ); - -#define r6 (pp + 3 * n) /* 3n+1 */ -#define r4 (pp + 7 * n) /* 3n+1 */ -#define r2 (pp +11 * n) /* 3n+1 */ -#define r0 (pp +15 * n) /* s+t <= 2*n */ -#define r7 (scratch) /* 3n+1 */ -#define r5 (scratch + 3 * n + 1) /* 3n+1 */ -#define r3 (scratch + 6 * n + 2) /* 3n+1 */ -#define r1 (scratch + 9 * n + 3) /* 3n+1 */ -#define v0 (pp +11 * n) /* n+1 */ -#define v2 (pp +13 * n+2) /* n+1 */ -#define wse (scratch +12 * n + 4) /* 3n+1 */ - - /* Alloc also 3n+1 limbs for ws... toom_interpolate_16pts may - need all of them, when DO_mpn_sublsh_n usea a scratch */ -/* if (scratch == NULL) */ -/* scratch = TMP_SALLOC_LIMBS (30 * n + 6); */ - - /********************** evaluation and recursive calls *********************/ - /* $\pm1/8$ */ - mpn_toom_eval_pm2rexp (v2, v0, 7, ap, n, s, 3, pp); - /* A(-1/8)*B(-1/8)*8^. */ /* A(+1/8)*B(+1/8)*8^. */ - TOOM8_SQR_REC(pp, v0, 2, r7, v2, n + 1, wse); - mpn_toom_couple_handling (r7, 2 * n + 1 + BIT_CORRECTION, pp, 0, n, 3, 0); - - /* $\pm1/4$ */ - mpn_toom_eval_pm2rexp (v2, v0, 7, ap, n, s, 2, pp); - /* A(-1/4)*B(-1/4)*4^. */ /* A(+1/4)*B(+1/4)*4^. */ - TOOM8_SQR_REC(pp, v0, 2, r5, v2, n + 1, wse); - mpn_toom_couple_handling (r5, 2 * n + 1, pp, 0, n, 2, 0); - - /* $\pm2$ */ - mpn_toom_eval_pm2 (v2, v0, 7, ap, n, s, pp); - /* A(-2)*B(-2) */ /* A(+2)*B(+2) */ - TOOM8_SQR_REC(pp, v0, 2, r3, v2, n + 1, wse); - mpn_toom_couple_handling (r3, 2 * n + 1, pp, 0, n, 1, 2); - - /* $\pm8$ */ - mpn_toom_eval_pm2exp (v2, v0, 7, ap, n, s, 3, pp); - /* A(-8)*B(-8) */ /* A(+8)*B(+8) */ - TOOM8_SQR_REC(pp, v0, 2, r1, v2, n + 1, wse); - mpn_toom_couple_handling (r1, 2 * n + 1 + BIT_CORRECTION, pp, 0, n, 3, 6); - - /* $\pm1/2$ */ - mpn_toom_eval_pm2rexp (v2, v0, 7, ap, n, s, 1, pp); - /* A(-1/2)*B(-1/2)*2^. */ /* A(+1/2)*B(+1/2)*2^. */ - TOOM8_SQR_REC(pp, v0, 2, r6, v2, n + 1, wse); - mpn_toom_couple_handling (r6, 2 * n + 1, pp, 0, n, 1, 0); - - /* $\pm1$ */ - mpn_toom_eval_pm1 (v2, v0, 7, ap, n, s, pp); - /* A(-1)*B(-1) */ /* A(1)*B(1) */ - TOOM8_SQR_REC(pp, v0, 2, r4, v2, n + 1, wse); - mpn_toom_couple_handling (r4, 2 * n + 1, pp, 0, n, 0, 0); - - /* $\pm4$ */ - mpn_toom_eval_pm2exp (v2, v0, 7, ap, n, s, 2, pp); - /* A(-4)*B(-4) */ /* A(+4)*B(+4) */ - TOOM8_SQR_REC(pp, v0, 2, r2, v2, n + 1, wse); - mpn_toom_couple_handling (r2, 2 * n + 1, pp, 0, n, 2, 4); - -#undef v0 -#undef v2 - - /* A(0)*B(0) */ - TOOM8_SQR_REC(pp, ap, 0, pp, ap, n, wse); - - mpn_toom_interpolate_16pts (pp, r1, r3, r5, r7, n, 2 * s, 0, wse); - -#undef r0 -#undef r1 -#undef r2 -#undef r3 -#undef r4 -#undef r5 -#undef r6 -#undef wse - -} - -#undef TOOM8_SQR_REC -#undef MAYBE_sqr_basecase -#undef MAYBE_sqr_above_basecase -#undef MAYBE_sqr_toom2 -#undef MAYBE_sqr_above_toom2 -#undef MAYBE_sqr_toom3 -#undef MAYBE_sqr_above_toom3 -#undef MAYBE_sqr_above_toom4 |