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-rw-r--r--sysdeps/powerpc/powerpc64/strpbrk.S135
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diff --git a/sysdeps/powerpc/powerpc64/strpbrk.S b/sysdeps/powerpc/powerpc64/strpbrk.S
deleted file mode 100644
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-/* Optimized strpbrk implementation for PowerPC64.
- Copyright (C) 2014-2016 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- 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>
-
-/* char [r3] *strpbrk(const char [r4] *s, const char [r5] *accept) */
-
-EALIGN (strpbrk, 4, 0)
- CALL_MCOUNT 3
-
- lbz r10,0(r4)
- cmpdi cr7,r10,0 /* accept[0] == '\0' ? */
- beq cr7,L(nullfound)
-
- /* The idea to speed up the algorithm is to create a lookup table
- for fast check if input character should be considered. For ASCII
- or ISO-8859-X character sets it has 256 positions. */
-
- /* PPC64 ELF ABI stack is aligned to 16 bytes. */
- addi r9,r1,-256
- /* Clear the table with 0 values */
- li r6, 0
- li r7, 4
- mtctr r7
- mr r8, r9
- .align 4
-L(zerohash):
- std r6, 0(r8)
- std r6, 8(r8)
- std r6, 16(r8)
- std r6, 24(r8)
- std r6, 32(r8)
- std r6, 40(r8)
- std r6, 48(r8)
- std r6, 56(r8)
- addi r8, r8, 64
- bdnz L(zerohash)
-
- /* Initialize the table as:
- for (i=0; accept[i]; i++
- table[accept[i]]] = 1 */
- li r0,1
- .align 4
-L(init_table):
- stbx r0,r9,r10
- lbzu r10,1(r4)
- cmpdi r0,r10,0
- bne cr0,L(init_table)
-L(finish_table):
- /* set table[0] = 1 */
- li r4,1
- stb r4,0(r9)
- b L(mainloop)
-
- /* Unrool the loop 4 times and check using the table as:
- i = 0;
- while (1)
- {
- if (table[input[i++]] == 1)
- return (s[i -1] ? s + i - 1: NULL);
- if (table[input[i++]] == 1)
- return (s[i -1] ? s + i - 1: NULL);
- if (table[input[i++]] == 1)
- return (s[i -1] ? s + i - 1: NULL);
- if (table[input[i++]] == 1)
- return (s[i -1] ? s + i - 1: NULL);
- } */
- .align 4
-L(unroll):
- lbz r0,1(r3)
- lbzx r8,r9,r0
- cmpwi cr6,r8,1
- beq cr6,L(checkend2)
- lbz r10,2(r3)
- lbzx r4,r9,r10
- cmpwi cr7,r4,1
- beq cr7,L(checkend3)
- lbz r12,3(r3)
- addi r3,r3,4
- lbzx r11,r9,r12
- cmpwi cr0,r11,1
- beq cr0,L(checkend)
-L(mainloop):
- lbz r12,0(r3)
- addi r11,r3,1
- addi r5,r3,2
- addi r7,r3,3
- lbzx r6,r9,r12
- cmpwi cr1,r6,1
- bne cr1,L(unroll)
- cmpdi cr0,r12,0
- beq cr0,L(nullfound)
-L(end):
- blr
-
- .align 4
-L(checkend):
- cmpdi cr1,r12,0
- mr r3,r7
- bne cr1,L(end)
-L(nullfound):
- /* return NULL */
- li 3,0
- blr
-
- .align 4
-L(checkend2):
- cmpdi cr7,r0,0
- mr r3,r11
- beq cr7,L(nullfound)
- blr
-
- .align 4
-L(checkend3):
- cmpdi cr6,r10,0
- mr r3,r5
- beq cr6,L(nullfound)
- blr
-END (strpbrk)
-libc_hidden_builtin_def (strpbrk)