From 6d550ddd129b18cf800eab604f74536754526cd8 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Mon, 1 Sep 2014 20:44:20 +0200 Subject: sparc: remove sparc64/sparcv9 code The sparc64/sparcv9 code is incomplete. Furthermore there is no real embedded hardware for sparc64 available, so better remove it until someone comes up with a complete port. Signed-off-by: Waldemar Brodkorb Signed-off-by: Bernhard Reutner-Fischer --- libc/string/sparc/sparc64/strcmp.S | 278 ------------------------------------- 1 file changed, 278 deletions(-) delete mode 100644 libc/string/sparc/sparc64/strcmp.S (limited to 'libc/string/sparc/sparc64/strcmp.S') diff --git a/libc/string/sparc/sparc64/strcmp.S b/libc/string/sparc/sparc64/strcmp.S deleted file mode 100644 index 7b8500714..000000000 --- a/libc/string/sparc/sparc64/strcmp.S +++ /dev/null @@ -1,278 +0,0 @@ -/* Compare two strings for differences. - For SPARC v9. - Copyright (C) 1997, 1999, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jan Vondrak and - Jakub Jelinek . - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#ifndef XCC - .register %g2, #scratch - .register %g3, #scratch - .register %g6, #scratch -#endif - - /* Normally, this uses - ((xword - 0x0101010101010101) & 0x8080808080808080) test - to find out if any byte in xword could be zero. This is fast, but - also gives false alarm for any byte in range 0x81-0xff. It does - not matter for correctness, as if this test tells us there could - be some zero byte, we check it byte by byte, but if bytes with - high bits set are common in the strings, then this will give poor - performance. You can #define EIGHTBIT_NOT_RARE and the algorithm - will use one tick slower, but more precise test - ((xword - 0x0101010101010101) & (~xword) & 0x8080808080808080), - which does not give any false alarms (but if some bits are set, - one cannot assume from it which bytes are zero and which are not). - It is yet to be measured, what is the correct default for glibc - in these days for an average user. - */ - - .text - .align 32 -ENTRY(strcmp) - sethi %hi(0x01010101), %g1 /* IEU0 Group */ - andcc %o0, 7, %g0 /* IEU1 */ - bne,pn %icc, 7f /* CTI */ - or %g1, %lo(0x01010101), %g1 /* IEU0 Group */ - - andcc %o1, 7, %g3 /* IEU1 */ - bne,pn %icc, 9f /* CTI */ - sllx %g1, 32, %g2 /* IEU0 Group */ - ldx [%o0], %o2 /* Load */ - - or %g1, %g2, %g1 /* IEU0 Group */ -1: ldx [%o1], %o3 /* Load */ - sub %o1, %o0, %o1 /* IEU1 */ - sllx %g1, 7, %g2 /* IEU0 Group */ - -2: add %o0, 8, %o0 /* IEU1 */ - sub %o2, %g1, %g3 /* IEU0 Group */ - subcc %o2, %o3, %g0 /* IEU1 */ - bne,pn %xcc, 13f /* CTI */ - -#ifdef EIGHTBIT_NOT_RARE - andn %g3, %o2, %g4 /* IEU0 Group */ - ldxa [%o0] ASI_PNF, %o2 /* Load */ - andcc %g4, %g2, %g0 /* IEU1 Group */ -#else - ldxa [%o0] ASI_PNF, %o2 /* Load Group */ - andcc %g3, %g2, %g0 /* IEU1 */ -#endif - be,a,pt %xcc, 2b /* CTI */ - ldxa [%o1 + %o0] ASI_PNF, %o3 /* Load Group */ - - addcc %g3, %g1, %o4 /* IEU1 */ - srlx %g3, 32, %g3 /* IEU0 */ - andcc %g3, %g2, %g0 /* IEU1 Group */ - be,pt %xcc, 3f /* CTI */ - - srlx %o4, 56, %o5 /* IEU0 */ - andcc %o5, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 4f /* CTI */ - srlx %o4, 48, %o5 /* IEU0 */ - - andcc %o5, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 4f /* CTI */ - srlx %o4, 40, %o5 /* IEU0 */ - andcc %o5, 0xff, %g0 /* IEU1 Group */ - - be,pn %icc, 4f /* CTI */ - srlx %o4, 32, %o5 /* IEU0 */ - andcc %o5, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 4f /* CTI */ - -3: srlx %o4, 24, %o5 /* IEU0 */ - andcc %o5, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 4f /* CTI */ - srlx %o4, 16, %o5 /* IEU0 */ - - andcc %o5, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 4f /* CTI */ - srlx %o4, 8, %o5 /* IEU0 */ - andcc %o5, 0xff, %g0 /* IEU1 Group */ - - be,pn %icc, 4f /* CTI */ - andcc %o4, 0xff, %g0 /* IEU1 Group */ - bne,a,pn %icc, 2b /* CTI */ - ldxa [%o1 + %o0] ASI_PNF, %o3 /* Load */ - -4: retl /* CTI+IEU1 Group */ - clr %o0 /* IEU0 */ - - .align 32 -13: mov 0xff, %g6 /* IEU0 Group */ -#ifdef EIGHTBIT_NOT_RARE - andcc %g4, %g2, %g0 /* IEU1 */ -#else - andcc %g3, %g2, %g0 /* IEU1 */ -#endif - be,pt %xcc, 25f /* CTI */ - addcc %g3, %g1, %o4 /* IEU1 Group */ - - srlx %g3, 32, %g3 /* IEU0 */ - andcc %g3, %g2, %g0 /* IEU1 Group */ - be,pt %xcc, 23f /* CTI */ - sllx %g6, 56, %o5 /* IEU0 */ - - andcc %o4, %o5, %g0 /* IEU1 Group */ - be,pn %xcc, 24f /* CTI */ - sllx %g6, 48, %o5 /* IEU0 */ - andcc %o4, %o5, %g0 /* IEU1 Group */ - - be,pn %xcc, 24f /* CTI */ - sllx %g6, 40, %o5 /* IEU0 */ - andcc %o4, %o5, %g0 /* IEU1 Group */ - be,pn %xcc, 24f /* CTI */ - - sllx %g6, 32, %o5 /* IEU0 */ - andcc %o4, %o5, %g0 /* IEU1 Group */ - be,pn %xcc, 24f /* CTI */ -23: sllx %g6, 24, %o5 /* IEU0 */ - - andcc %o4, %o5, %g0 /* IEU1 Group */ - be,pn %icc, 24f /* CTI */ - sllx %g6, 16, %o5 /* IEU0 */ - andcc %o4, %o5, %g0 /* IEU1 Group */ - - be,pn %icc, 24f /* CTI */ - sllx %g6, 8, %o5 /* IEU0 */ - andcc %o4, %o5, %g0 /* IEU1 Group */ - be,pn %icc, 24f /* CTI */ - - mov %g6, %o5 /* IEU0 */ -25: cmp %o4, %o3 /* IEU1 Group */ -5: mov -1, %o0 /* IEU0 */ - retl /* CTI+IEU1 Group */ - - movgu %xcc, 1, %o0 /* Single Group */ - - .align 16 -24: sub %o5, 1, %g6 /* IEU0 Group */ - clr %o0 /* IEU1 */ - or %o5, %g6, %o5 /* IEU0 Group */ - andn %o4, %o5, %o4 /* IEU0 Group */ - - andn %o3, %o5, %o3 /* IEU1 */ - cmp %o4, %o3 /* IEU1 Group */ - movgu %xcc, 1, %o0 /* Single Group */ - retl /* CTI+IEU1 Group */ - - movlu %xcc, -1, %o0 /* Single Group */ -6: retl /* CTI+IEU1 Group */ - mov %o4, %o0 /* IEU0 */ - - .align 16 -7: ldub [%o0], %o2 /* Load */ - add %o0, 1, %o0 /* IEU1 */ - ldub [%o1], %o3 /* Load Group */ - sllx %g1, 32, %g2 /* IEU0 */ - -8: add %o1, 1, %o1 /* IEU1 */ - subcc %o2, %o3, %o4 /* IEU1 Group */ - bne,pn %xcc, 6b /* CTI */ - lduba [%o0] ASI_PNF, %o2 /* Load */ - - brz,pn %o3, 4b /* CTI+IEU1 Group */ - lduba [%o1] ASI_PNF, %o3 /* Load */ - andcc %o0, 7, %g0 /* IEU1 Group */ - bne,a,pn %icc, 8b /* CTI */ - - add %o0, 1, %o0 /* IEU0 */ - or %g1, %g2, %g1 /* IEU0 Group */ - andcc %o1, 7, %g3 /* IEU1 */ - be,a,pn %icc, 1b /* CTI */ - - ldxa [%o0] ASI_PNF, %o2 /* Load Group */ -9: sllx %g3, 3, %g5 /* IEU0 */ - mov 64, %o5 /* IEU1 */ - sub %o1, %g3, %o1 /* IEU0 Group */ - - sub %o5, %g5, %o5 /* IEU1 */ - ldxa [%o1] ASI_PNF, %g6 /* Load Group */ - or %g1, %g2, %g1 /* IEU0 */ - sub %o1, %o0, %o1 /* IEU1 */ - - sllx %g1, 7, %g2 /* IEU0 Group */ - add %o1, 8, %o1 /* IEU1 */ - /* %g1 = 0101010101010101 - * %g2 = 8080808080800880 - * %g5 = number of bits to shift left - * %o5 = number of bits to shift right */ -10: sllx %g6, %g5, %o3 /* IEU0 Group */ - ldxa [%o1 + %o0] ASI_PNF, %g6 /* Load */ - -11: srlx %g6, %o5, %o4 /* IEU0 Group */ - ldxa [%o0] ASI_PNF, %o2 /* Load */ - or %o3, %o4, %o3 /* IEU1 */ - add %o0, 8, %o0 /* IEU0 Group */ - - subcc %o2, %o3, %g0 /* IEU1 */ -#ifdef EIGHTBIT_NOT_RARE - sub %o2, %g1, %g3 /* IEU0 Group */ - bne,pn %xcc, 13b /* CTI */ - andn %g3, %o2, %g4 /* IEU0 Group */ - - andcc %g4, %g2, %g0 /* IEU1 Group */ - be,pt %xcc, 10b /* CTI */ - srlx %g4, 32, %g4 /* IEU0 */ - andcc %g4, %g2, %g0 /* IEU1 Group */ -#else - bne,pn %xcc, 13b /* CTI */ - sub %o2, %g1, %g3 /* IEU0 Group */ - andcc %g3, %g2, %g0 /* IEU1 Group */ - - be,pt %xcc, 10b /* CTI */ - srlx %g3, 32, %g3 /* IEU0 */ - andcc %g3, %g2, %g0 /* IEU1 Group */ -#endif - be,pt %xcc, 12f /* CTI */ - - srlx %o2, 56, %g3 /* IEU0 */ - andcc %g3, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 4b /* CTI */ - srlx %o2, 48, %g3 /* IEU0 */ - - andcc %g3, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 4b /* CTI */ - srlx %o2, 40, %g3 /* IEU0 */ - andcc %g3, 0xff, %g0 /* IEU1 Group */ - - be,pn %icc, 4b /* CTI */ - srlx %o2, 32, %g3 /* IEU0 */ - andcc %g3, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 4b /* CTI */ - -12: srlx %o2, 24, %g3 /* IEU0 */ - andcc %g3, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 4b /* CTI */ - srlx %o2, 16, %g3 /* IEU0 */ - - andcc %g3, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 4b /* CTI */ - srlx %o2, 8, %g3 /* IEU0 */ - andcc %g3, 0xff, %g0 /* IEU1 Group */ - - be,pn %icc, 4b /* CTI */ - andcc %o2, 0xff, %g0 /* IEU1 Group */ - be,pn %icc, 4b /* CTI */ - sllx %g6, %g5, %o3 /* IEU0 */ - - ba,pt %xcc, 11b /* CTI Group */ - ldxa [%o1 + %o0] ASI_PNF, %g6 /* Load */ -END(strcmp) -libc_hidden_def(strcmp) -- cgit v1.2.3