diff options
Diffstat (limited to 'gcc/config/spu/divmodti4.c')
| -rw-r--r-- | gcc/config/spu/divmodti4.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/gcc/config/spu/divmodti4.c b/gcc/config/spu/divmodti4.c deleted file mode 100644 index 57c975c6b3c..00000000000 --- a/gcc/config/spu/divmodti4.c +++ /dev/null @@ -1,188 +0,0 @@ -/* Copyright (C) 2008, 2009 Free Software Foundation, Inc. - - This file 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 3 of the License, or (at your option) - any later version. - - This file 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. - - Under Section 7 of GPL version 3, you are granted additional - permissions described in the GCC Runtime Library Exception, version - 3.1, as published by the Free Software Foundation. - - You should have received a copy of the GNU General Public License and - a copy of the GCC Runtime Library Exception along with this program; - see the files COPYING3 and COPYING.RUNTIME respectively. If not, see - <http://www.gnu.org/licenses/>. */ - -#include <spu_intrinsics.h> - -typedef unsigned int UTItype __attribute__ ((mode (TI))); -typedef int TItype __attribute__ ((mode (TI))); -TItype __divti3 (TItype u, TItype v); -TItype __modti3 (TItype u, TItype v); -UTItype __udivti3 (UTItype u, UTItype v); -UTItype __umodti3 (UTItype u, UTItype v); -UTItype __udivmodti4 (UTItype u, UTItype v, UTItype *w); - -union qword_UTItype - { - qword q; - UTItype t; - }; - -inline static qword -si_from_UTItype (UTItype t) -{ - union qword_UTItype u; - u.t = t; - return u.q; -} - -inline static UTItype -si_to_UTItype (qword q) -{ - union qword_UTItype u; - u.q = q; - return u.t; -} - -inline static unsigned int -count_leading_zeros (UTItype x) -{ - qword c = si_clz (*(qword *) & x); - qword cmp0 = si_cgti (c, 31); - qword cmp1 = si_and (cmp0, si_shlqbyi (cmp0, 4)); - qword cmp2 = si_and (cmp1, si_shlqbyi (cmp0, 8)); - qword s = si_a (c, si_and (cmp0, si_shlqbyi (c, 4))); - s = si_a (s, si_and (cmp1, si_shlqbyi (c, 8))); - s = si_a (s, si_and (cmp2, si_shlqbyi (c, 12))); - return si_to_uint (s); -} - -/* Based on implementation of udivmodsi4, which is essentially - * an optimized version of gcc/config/udivmodsi4.c - clz %7,%2 - clz %4,%1 - il %5,1 - fsmbi %0,0 - sf %7,%4,%7 - ori %3,%1,0 - shl %5,%5,%7 - shl %4,%2,%7 -1: or %8,%0,%5 - rotmi %5,%5,-1 - clgt %6,%4,%3 - sf %7,%4,%3 - rotmi %4,%4,-1 - selb %0,%8,%0,%6 - selb %3,%7,%3,%6 -3: brnz %5,1b - */ - -UTItype -__udivmodti4 (UTItype num, UTItype den, UTItype * rp) -{ - qword shift = - si_from_uint (count_leading_zeros (den) - count_leading_zeros (num)); - qword n0 = si_from_UTItype (num); - qword d0 = si_from_UTItype (den); - qword bit = si_andi (si_fsmbi (1), 1); - qword r0 = si_il (0); - qword m1 = si_fsmbi (0x000f); - qword mask, r1, n1; - - d0 = si_shlqbybi (si_shlqbi (d0, shift), shift); - bit = si_shlqbybi (si_shlqbi (bit, shift), shift); - - do - { - r1 = si_or (r0, bit); - - // n1 = n0 - d0 in TImode - n1 = si_bg (d0, n0); - n1 = si_shlqbyi (n1, 4); - n1 = si_sf (m1, n1); - n1 = si_bgx (d0, n0, n1); - n1 = si_shlqbyi (n1, 4); - n1 = si_sf (m1, n1); - n1 = si_bgx (d0, n0, n1); - n1 = si_shlqbyi (n1, 4); - n1 = si_sf (m1, n1); - n1 = si_sfx (d0, n0, n1); - - mask = si_fsm (si_cgti (n1, -1)); - r0 = si_selb (r0, r1, mask); - n0 = si_selb (n0, n1, mask); - bit = si_rotqmbii (bit, -1); - d0 = si_rotqmbii (d0, -1); - } - while (si_to_uint (si_orx (bit))); - if (rp) - *rp = si_to_UTItype (n0); - return si_to_UTItype (r0); -} - -UTItype -__udivti3 (UTItype n, UTItype d) -{ - return __udivmodti4 (n, d, (UTItype *)0); -} - -UTItype -__umodti3 (UTItype n, UTItype d) -{ - UTItype w; - __udivmodti4 (n, d, &w); - return w; -} - -TItype -__divti3 (TItype n, TItype d) -{ - int c = 0; - TItype w; - - if (n < 0) - { - c = ~c; - n = -n; - } - if (d < 0) - { - c = ~c; - d = -d; - } - - w = __udivmodti4 (n, d, (UTItype *)0); - if (c) - w = -w; - return w; -} - -TItype -__modti3 (TItype n, TItype d) -{ - int c = 0; - TItype w; - - if (n < 0) - { - c = ~c; - n = -n; - } - if (d < 0) - { - c = ~c; - d = -d; - } - - __udivmodti4 (n, d, (UTItype *) &w); - if (c) - w = -w; - return w; -} |
