hamdist.asm
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上传日期:2022-08-06
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- dnl IA-64 mpn_hamdist -- mpn hamming distance.
- dnl Copyright 2003, 2004, 2005 Free Software Foundation, Inc.
- dnl
- dnl This file is part of the GNU MP Library.
- dnl The GNU MP Library is free software; you can redistribute it and/or modify
- dnl it under the terms of the GNU Lesser General Public License as published
- dnl by the Free Software Foundation; either version 3 of the License, or (at
- dnl your option) any later version.
- dnl The GNU MP Library is distributed in the hope that it will be useful, but
- dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
- dnl License for more details.
- dnl You should have received a copy of the GNU Lesser General Public License
- dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/.
- include(`../config.m4')
- C cycles/limb
- C Itanium: 2
- C Itanium 2: 1
- C INPUT PARAMETERS
- define(`up', `r32')
- define(`vp', `r33')
- define(`n', `r34')
- define(`u0',`r16') define(`u1',`r17') define(`u2',`r18') define(`u3',`r19')
- define(`v0',`r20') define(`v1',`r21') define(`v2',`r22') define(`v3',`r23')
- define(`x0',`r24') define(`x1',`r25') define(`x2',`r26') define(`x3',`r27')
- define(`c0',`r28') define(`c1',`r29') define(`c2',`r30') define(`c3',`r31')
- define(`s',`r8')
- ASM_START()
- PROLOGUE(mpn_hamdist)
- .prologue
- ifdef(`HAVE_ABI_32',
- ` addp4 up = 0, up C M I
- addp4 vp = 0, vp C M I
- zxt4 n = n C I
- ;;
- ')
- {.mmi; ld8 r10 = [up], 8 C load first ulimb M01
- ld8 r11 = [vp], 8 C load first vlimb M01
- mov.i r2 = ar.lc C save ar.lc I0
- }{.mmi; and r14 = 3, n C M I
- cmp.lt p15, p0 = 4, n C small count? M I
- add n = -5, n C M I
- ;;
- }{.mmi; cmp.eq p6, p0 = 1, r14 C M I
- cmp.eq p7, p0 = 2, r14 C M I
- cmp.eq p8, p0 = 3, r14 C M I
- }{.bbb
- (p6) br.dptk .Lb01 C B
- (p7) br.dptk .Lb10 C B
- (p8) br.dptk .Lb11 C B
- }
- .Lb00: ld8 u1 = [up], 8 C M01
- ld8 v1 = [vp], 8 C M01
- shr.u n = n, 2 C I0
- xor x0 = r10, r11 C M I
- ;;
- ld8 u2 = [up], 8 C M01
- ld8 v2 = [vp], 8 C M01
- mov.i ar.lc = n C I0
- xor x1 = u1, v1 C M I
- ;;
- ld8 u3 = [up], 8 C M01
- ld8 v3 = [vp], 8 C M01
- xor x2 = u2, v2 C M I
- mov s = 0 C M I
- (p15) br.cond.dptk .grt4 C B
- ;;
- popcnt c0 = x0 C I0
- xor x3 = u3, v3 C M I
- ;;
- popcnt c1 = x1 C I0
- ;;
- popcnt c2 = x2 C I0
- br .Lcj4 C B
- .grt4: ld8 u0 = [up], 8 C M01
- ld8 v0 = [vp], 8 C M01
- xor x1 = u1, v1 C M I
- ;;
- ld8 u1 = [up], 8 C M01
- ld8 v1 = [vp], 8 C M01
- xor x2 = u2, v2 C M I
- ;;
- ld8 u2 = [up], 8 C M01
- ld8 v2 = [vp], 8 C M01
- popcnt c0 = x0 C I0
- xor x3 = u3, v3 C M I
- ;;
- ld8 u3 = [up], 8 C M01
- ld8 v3 = [vp], 8 C M01
- popcnt c1 = x1 C I0
- xor x0 = u0, v0 C M I
- br.cloop.dpnt .grt8 C B
- popcnt c2 = x2 C I0
- xor x1 = u1, v1 C M I
- br .Lcj8 C B
- .grt8: ld8 u0 = [up], 8 C M01
- ld8 v0 = [vp], 8 C M01
- popcnt c2 = x2 C I0
- xor x1 = u1, v1 C M I
- br .LL00 C B
- .Lb01: xor x3 = r10, r11 C M I
- shr.u n = n, 2 C I0
- (p15) br.cond.dptk .grt1 C B
- ;;
- popcnt r8 = x3 C I0
- br.ret.sptk.many b0 C B
- .grt1: ld8 u0 = [up], 8 C M01
- ld8 v0 = [vp], 8 C M01
- mov.i ar.lc = n C I0
- ;;
- ld8 u1 = [up], 8 C M01
- ld8 v1 = [vp], 8 C M01
- mov s = 0 C M I
- ;;
- ld8 u2 = [up], 8 C M01
- ld8 v2 = [vp], 8 C M01
- ;;
- ld8 u3 = [up], 8 C M01
- ld8 v3 = [vp], 8 C M01
- xor x0 = u0, v0 C M I
- br.cloop.dpnt .grt5 C B
- xor x1 = u1, v1 C M I
- ;;
- popcnt c3 = x3 C I0
- xor x2 = u2, v2 C M I
- ;;
- popcnt c0 = x0 C I0
- xor x3 = u3, v3 C M I
- ;;
- popcnt c1 = x1 C I0
- br .Lcj5 C B
- .grt5: ld8 u0 = [up], 8 C M01
- ld8 v0 = [vp], 8 C M01
- xor x1 = u1, v1 C M I
- ;;
- ld8 u1 = [up], 8 C M01
- ld8 v1 = [vp], 8 C M01
- popcnt c3 = x3 C I0
- xor x2 = u2, v2 C M I
- ;;
- ld8 u2 = [up], 8 C M01
- ld8 v2 = [vp], 8 C M01
- popcnt c0 = x0 C I0
- xor x3 = u3, v3 C M I
- ;;
- ld8 u3 = [up], 8 C M01
- ld8 v3 = [vp], 8 C M01
- popcnt c1 = x1 C I0
- xor x0 = u0, v0 C M I
- br.cloop.dpnt .Loop C B
- br .Lend C B
- .Lb10: ld8 u3 = [up], 8 C M01
- ld8 v3 = [vp], 8 C M01
- xor x2 = r10, r11 C M I
- (p15) br.cond.dptk .grt2 C B
- ;;
- xor x3 = u3, v3 C M I
- ;;
- popcnt c2 = x2 C I0
- ;;
- popcnt c3 = x3 C I0
- ;;
- add s = c2, c3 C M I
- br.ret.sptk.many b0 C B
- .grt2: ld8 u0 = [up], 8 C M01
- ld8 v0 = [vp], 8 C M01
- shr.u n = n, 2 C I0
- ;;
- ld8 u1 = [up], 8 C M01
- ld8 v1 = [vp], 8 C M01
- mov.i ar.lc = n C I0
- mov s = 0 C M I
- ;;
- ld8 u2 = [up], 8 C M01
- ld8 v2 = [vp], 8 C M01
- xor x3 = u3, v3 C M I
- ;;
- ld8 u3 = [up], 8 C M01
- ld8 v3 = [vp], 8 C M01
- xor x0 = u0, v0 C M I
- br.cloop.dptk .grt6 C B
- popcnt c2 = x2 C I0
- xor x1 = u1, v1 C M I
- ;;
- popcnt c3 = x3 C I0
- xor x2 = u2, v2 C M I
- ;;
- popcnt c0 = x0 C I0
- xor x3 = u3, v3 C M I
- br .Lcj6 C B
- .grt6: ld8 u0 = [up], 8 C M01
- ld8 v0 = [vp], 8 C M01
- popcnt c2 = x2 C I0
- xor x1 = u1, v1 C M I
- ;;
- ld8 u1 = [up], 8 C M01
- ld8 v1 = [vp], 8 C M01
- popcnt c3 = x3 C I0
- xor x2 = u2, v2 C M I
- ;;
- ld8 u2 = [up], 8 C M01
- ld8 v2 = [vp], 8 C M01
- popcnt c0 = x0 C I0
- xor x3 = u3, v3 C M I
- br .LL10 C B
- .Lb11: ld8 u2 = [up], 8 C M01
- ld8 v2 = [vp], 8 C M01
- shr.u n = n, 2 C I0
- xor x1 = r10, r11 C M I
- ;;
- ld8 u3 = [up], 8 C M01
- ld8 v3 = [vp], 8 C M01
- xor x2 = u2, v2 C M I
- (p15) br.cond.dptk .grt3 C B
- ;;
- xor x3 = u3, v3 C M I
- ;;
- popcnt c1 = x1 C I0
- ;;
- popcnt c2 = x2 C I0
- ;;
- popcnt c3 = x3 C I0
- ;;
- add s = c1, c2 C M I
- ;;
- add s = s, c3 C M I
- br.ret.sptk.many b0 C B
- .grt3: ld8 u0 = [up], 8 C M01
- ld8 v0 = [vp], 8 C M01
- mov.i ar.lc = n C I0
- ;;
- ld8 u1 = [up], 8 C M01
- ld8 v1 = [vp], 8 C M01
- mov s = 0 C M I
- ;;
- ld8 u2 = [up], 8 C M01
- ld8 v2 = [vp], 8 C M01
- xor x3 = u3, v3 C M I
- ;;
- ld8 u3 = [up], 8 C M01
- ld8 v3 = [vp], 8 C M01
- popcnt c1 = x1 C I0
- xor x0 = u0, v0 C M I
- br.cloop.dptk .grt7 C B
- popcnt c2 = x2 C I0
- xor x1 = u1, v1 C M I
- ;;
- popcnt c3 = x3 C I0
- xor x2 = u2, v2 C M I
- br .Lcj7 C B
- .grt7: ld8 u0 = [up], 8 C M01
- ld8 v0 = [vp], 8 C M01
- popcnt c2 = x2 C I0
- xor x1 = u1, v1 C M I
- ;;
- ld8 u1 = [up], 8 C M01
- ld8 v1 = [vp], 8 C M01
- popcnt c3 = x3 C I0
- xor x2 = u2, v2 C M I
- br .LL11 C B
- ALIGN(32)
- .Loop: ld8 u0 = [up], 8 C M01
- ld8 v0 = [vp], 8 C M01
- popcnt c2 = x2 C I0
- add s = s, c3 C M I
- xor x1 = u1, v1 C M I
- nop.b 1 C -
- ;;
- .LL00: ld8 u1 = [up], 8 C M01
- ld8 v1 = [vp], 8 C M01
- popcnt c3 = x3 C I0
- add s = s, c0 C M I
- xor x2 = u2, v2 C M I
- nop.b 1 C -
- ;;
- .LL11: ld8 u2 = [up], 8 C M01
- ld8 v2 = [vp], 8 C M01
- popcnt c0 = x0 C I0
- add s = s, c1 C M I
- xor x3 = u3, v3 C M I
- nop.b 1 C -
- ;;
- .LL10: ld8 u3 = [up], 8 C M01
- ld8 v3 = [vp], 8 C M01
- popcnt c1 = x1 C I0
- add s = s, c2 C M I
- xor x0 = u0, v0 C M I
- br.cloop.dptk .Loop C B
- ;;
- .Lend: popcnt c2 = x2 C I0
- add s = s, c3 C M I
- xor x1 = u1, v1 C M I
- ;;
- .Lcj8: popcnt c3 = x3 C I0
- add s = s, c0 C M I
- xor x2 = u2, v2 C M I
- ;;
- .Lcj7: popcnt c0 = x0 C I0
- add s = s, c1 C M I
- xor x3 = u3, v3 C M I
- ;;
- .Lcj6: popcnt c1 = x1 C I0
- add s = s, c2 C M I
- ;;
- .Lcj5: popcnt c2 = x2 C I0
- add s = s, c3 C M I
- ;;
- .Lcj4: popcnt c3 = x3 C I0
- add s = s, c0 C M I
- ;;
- add s = s, c1 C M I
- ;;
- add s = s, c2 C M I
- ;;
- add s = s, c3 C M I
- mov.i ar.lc = r2 C I0
- br.ret.sptk.many b0 C B
- EPILOGUE()
- ASM_END()