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Diffstat (limited to 'sysdeps/sparc/sparc32/memchr.S')
| -rw-r--r-- | sysdeps/sparc/sparc32/memchr.S | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/sysdeps/sparc/sparc32/memchr.S b/sysdeps/sparc/sparc32/memchr.S deleted file mode 100644 index d00e2fef46..0000000000 --- a/sysdeps/sparc/sparc32/memchr.S +++ /dev/null @@ -1,142 +0,0 @@ -/* memchr (str, ch, n) -- Return pointer to first occurrence of CH in STR less - than N. - For SPARC v7. - Copyright (C) 1996-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jj@ultra.linux.cz> and - David S. Miller <davem@caip.rutgers.edu>. - This version is developed using the same algorithm as the fast C - version which carries the following introduction: - Based on strlen implementation by Torbjorn Granlund (tege@sics.se), - with help from Dan Sahlin (dan@sics.se) and - commentary by Jim Blandy (jimb@ai.mit.edu); - adaptation to memchr suggested by Dick Karpinski (dick@cca.ucsf.edu), - and implemented by Roland McGrath (roland@ai.mit.edu). - - 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> - - .text - .align 4 -ENTRY(__memchr) - andcc %o1, 0xff, %o1 - sll %o1, 8, %g6 - andcc %o0, 3, %g0 - or %o1, %g6, %g6 - sll %g6, 16, %o3 - be 10f - or %o3, %g6, %g2 - cmp %o2, 0 - be 9f - sethi %hi(0x80808080), %o4 - ldub [%o0], %g4 - cmp %g4, %o1 - be 1f - add %o0, 1, %o0 - subcc %o2, 1, %o2 - be 9f - andcc %o0, 3, %g0 - be 4f - or %o4, %lo(0x80808080), %o3 - ldub [%o0], %g4 - cmp %g4, %o1 - be 1f - add %o0, 1, %o0 - subcc %o2, 1, %o2 - be 9f - andcc %o0, 3, %g0 - be 5f - sethi %hi(0x01010101), %o5 - ldub [%o0], %g4 - cmp %g4, %o1 - be 1f - add %o0, 1, %o0 - subcc %o2, 1, %o2 - bne,a 7f - and %o2, 3, %g1 - retl - clr %o0 -1: retl - sub %o0, 1, %o0 -10: sethi %hi(0x80808080), %o4 - or %o4, %lo(0x80808080), %o3 -4: sethi %hi(0x01010101), %o5 -5: and %o2, 3, %g1 -7: andcc %o2, 0xfffffffc, %o2 - be 0f - or %o5, %lo(0x01010101), %g6 - ld [%o0], %g4 -6: xor %g4, %g2, %g5 - add %o0, 4, %o0 - sub %g5, %g6, %g5 - andcc %g5, %o3, %g0 - bne 8f - subcc %o2, 4, %o2 - bne,a 6b - ld [%o0], %g4 -0: cmp %g1, 0 -1: be 9f - add %o0, 4, %o0 - ldub [%o0 - 4], %g4 - cmp %g4, %o1 - be 4f - cmp %g1, 1 - be 9f - ldub [%o0 - 3], %g4 - cmp %g4, %o1 - be 3f - cmp %g1, 2 - be 9f - ldub [%o0 - 2], %g4 - cmp %g4, %o1 - be 2f - nop -9: retl - clr %o0 - - /* Check every byte. */ -8: srl %g4, 24, %g5 - and %g5, 0xff, %g5 - cmp %g5, %o1 - be 4f - srl %g4, 16, %g5 - and %g5, 0xff, %g5 - cmp %g5, %o1 - be 3f - srl %g4, 8, %g5 - and %g5, 0xff, %g5 - cmp %g5, %o1 - be 2f - and %g4, 0xff, %g5 - cmp %g5, %o1 - be 1f - cmp %o2, 0 - bne,a 6b - ld [%o0], %g4 - b 1b - cmp %g1, 0 -1: retl - sub %o0, 1, %o0 -2: retl - sub %o0, 2, %o0 -3: retl - sub %o0, 3, %o0 -4: retl - sub %o0, 4, %o0 -END(__memchr) - -weak_alias (__memchr, memchr) -libc_hidden_builtin_def (memchr) |