1 dnl Alpha mpn_sec_tabselect. 2 3 dnl Contributed to the GNU project by Torbjrn Granlund. 4 5 dnl Copyright 2011-2013 Free Software Foundation, Inc. 6 7 dnl This file is part of the GNU MP Library. 8 dnl 9 dnl The GNU MP Library is free software; you can redistribute it and/or modify 10 dnl it under the terms of either: 11 dnl 12 dnl * the GNU Lesser General Public License as published by the Free 13 dnl Software Foundation; either version 3 of the License, or (at your 14 dnl option) any later version. 15 dnl 16 dnl or 17 dnl 18 dnl * the GNU General Public License as published by the Free Software 19 dnl Foundation; either version 2 of the License, or (at your option) any 20 dnl later version. 21 dnl 22 dnl or both in parallel, as here. 23 dnl 24 dnl The GNU MP Library is distributed in the hope that it will be useful, but 25 dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 26 dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 27 dnl for more details. 28 dnl 29 dnl You should have received copies of the GNU General Public License and the 30 dnl GNU Lesser General Public License along with the GNU MP Library. If not, 31 dnl see https://www.gnu.org/licenses/. 32 33 include(`../config.m4') 34 35 C cycles/limb 36 C EV4: ? 37 C EV5: 2.25 38 C EV6: 1.64 39 40 define(`rp', `r16') 41 define(`tp', `r17') 42 define(`n', `r18') 43 define(`nents', `r19') 44 define(`which', `r20') 45 46 define(`i', `r21') 47 define(`j', `r22') 48 define(`stride', `r23') 49 define(`mask', `r24') 50 define(`k', `r25') 51 52 53 ASM_START() 54 PROLOGUE(mpn_sec_tabselect) 55 subq n, 4, j C outer loop induction variable 56 57 blt j, L(outer_end) 58 L(outer_top): 59 mov tp, r8 60 lda r0, 0(r31) 61 lda r1, 0(r31) 62 lda r2, 0(r31) 63 lda r3, 0(r31) 64 subq j, 4, j C outer loop induction variable 65 subq nents, which, k 66 mov nents, i 67 68 ALIGN(16) 69 L(top): ldq r4, 0(tp) 70 ldq r5, 8(tp) 71 cmpeq k, i, mask 72 subq i, 1, i 73 subq r31, mask, mask 74 ldq r6, 16(tp) 75 ldq r7, 24(tp) 76 and r4, mask, r4 77 and r5, mask, r5 78 or r0, r4, r0 79 or r1, r5, r1 80 and r6, mask, r6 81 and r7, mask, r7 82 or r2, r6, r2 83 or r3, r7, r3 84 s8addq n, tp, tp 85 bne i, L(top) 86 87 stq r0, 0(rp) 88 stq r1, 8(rp) 89 stq r2, 16(rp) 90 stq r3, 24(rp) 91 addq r8, 32, tp 92 addq rp, 32, rp 93 bge j, L(outer_top) 94 L(outer_end): 95 96 and n, 2, r0 97 beq r0, L(b0x) 98 L(b1x): mov tp, r8 99 lda r0, 0(r31) 100 lda r1, 0(r31) 101 subq nents, which, k 102 mov nents, i 103 ALIGN(16) 104 L(tp2): ldq r4, 0(tp) 105 ldq r5, 8(tp) 106 cmpeq k, i, mask 107 subq i, 1, i 108 subq r31, mask, mask 109 and r4, mask, r4 110 and r5, mask, r5 111 or r0, r4, r0 112 or r1, r5, r1 113 s8addq n, tp, tp 114 bne i, L(tp2) 115 stq r0, 0(rp) 116 stq r1, 8(rp) 117 addq r8, 16, tp 118 addq rp, 16, rp 119 120 L(b0x): and n, 1, r0 121 beq r0, L(b00) 122 L(b01): lda r0, 0(r31) 123 subq nents, which, k 124 mov nents, i 125 ALIGN(16) 126 L(tp1): ldq r4, 0(tp) 127 cmpeq k, i, mask 128 subq i, 1, i 129 subq r31, mask, mask 130 and r4, mask, r4 131 or r0, r4, r0 132 s8addq n, tp, tp 133 bne i, L(tp1) 134 stq r0, 0(rp) 135 136 L(b00): ret r31, (r26), 1 137 EPILOGUE() 138
Indexes created Wed Mar 04 05:31:52 UTC 2026