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-rw-r--r--sysdeps/powerpc/powerpc64/strcspn.S127
-rw-r--r--sysdeps/powerpc/powerpc64/strpbrk.S135
-rw-r--r--sysdeps/powerpc/powerpc64/strspn.S144
3 files changed, 0 insertions, 406 deletions
diff --git a/sysdeps/powerpc/powerpc64/strcspn.S b/sysdeps/powerpc/powerpc64/strcspn.S
deleted file mode 100644
index 31e619d..0000000
--- a/sysdeps/powerpc/powerpc64/strcspn.S
+++ /dev/null
@@ -1,127 +0,0 @@
-/* Optimized strcspn 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>
-
-/* size_t [r3] strcspn (const char [r4] *s, const char [r5] *reject) */
-
-EALIGN (strcspn, 4, 0)
- CALL_MCOUNT 3
-
- /* 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 r8, 4
- mtctr r8
- mr r10, r9
- .align 4
-L(zerohash):
- std r6, 0(r10)
- std r6, 8(r10)
- std r6, 16(r10)
- std r6, 24(r10)
- std r6, 32(r10)
- std r6, 40(r10)
- std r6, 48(r10)
- std r6, 56(r10)
- addi r10, r10, 64
- bdnz L(zerohash)
-
- lbz r10,0(r4)
- cmpdi cr7,r10,0 /* reject[0] == '\0' ? */
- li r8,1
- beq cr7,L(finish_table) /* If reject[0] == '\0' skip */
-
- /* Initialize the table as:
- for (i=0; reject[i]; i++
- table[reject[i]]] = 1 */
- .align 4
-L(init_table):
- stbx r8,r9,r10
- lbzu r10,1(r4)
- cmpdi cr7,r10,0 /* If reject[0] == '\0' finish */
- bne cr7,L(init_table)
-L(finish_table):
- /* set table[0] = 1 */
- li r10,1
- stb r10,0(r9)
- li r10,0
- b L(mainloop)
-
- /* Unrool the loop 4 times and check using the table as:
- i = 0;
- while (1)
- {
- if (table[input[i++]] == 1)
- return i - 1;
- if (table[input[i++]] == 1)
- return i - 1;
- if (table[input[i++]] == 1)
- return i - 1;
- if (table[input[i++]] == 1)
- return i - 1;
- } */
- .align 4
-L(unroll):
- lbz r8,1(r3)
- addi r10,r10,4
- lbzx r8,r9,r8
- cmpwi r7,r8,1
- beq cr7,L(end)
- lbz r8,2(r3)
- addi r3,r3,4
- lbzx r8,r9,r8
- cmpwi cr7,r8,1
- beq cr7,L(end2)
- lbz r8,3(r7)
- lbzx r8,r9,r8
- cmpwi cr7,r8,1
- beq cr7,L(end3)
-L(mainloop):
- lbz r8,0(r3)
- mr r7,r3
- addi r6,r10,1
- addi r4,r10,2
- addi r5,r10,3
- lbzx r8,r9,8
- cmpwi cr7,r8,1
- bne cr7,L(unroll)
- mr r3,r10
- blr
-
- .align 4
-L(end):
- mr r3,r6
- blr
-
- .align 4
-L(end2):
- mr r3,r4
- blr
-
- .align 4
-L(end3):
- mr r3,r5
- blr
-END (strcspn)
-libc_hidden_builtin_def (strcspn)
diff --git a/sysdeps/powerpc/powerpc64/strpbrk.S b/sysdeps/powerpc/powerpc64/strpbrk.S
deleted file mode 100644
index 5e9d1a6..0000000
--- a/sysdeps/powerpc/powerpc64/strpbrk.S
+++ /dev/null
@@ -1,135 +0,0 @@
-/* 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)
diff --git a/sysdeps/powerpc/powerpc64/strspn.S b/sysdeps/powerpc/powerpc64/strspn.S
deleted file mode 100644
index cf10da1..0000000
--- a/sysdeps/powerpc/powerpc64/strspn.S
+++ /dev/null
@@ -1,144 +0,0 @@
-/* Optimized strspn 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/>. */
-
-/* size_t [r3] strspn (const char *string [r3],
- const char *needleAccept [r4] */
-
-/* Performance gains are grabbed through following techniques:
-
- > hashing of needle.
- > hashing avoids scanning of duplicate entries in needle
- across the string.
- > unrolling when scanning for character in string
- across hash table. */
-
-/* Algorithm is as below:
- 1. A empty hash table/dictionary is created comprising of
- 256 ascii character set
- 2. When hash entry is found in needle , the hash index
- is initialized to 1
- 3. The string is scanned until end and for every character,
- its corresponding hash index is compared.
- 4. initial length of string (count) until first hit of
- accept needle to be found is set to 0
- 4. If hash index is set to 1 for the index of string,
- count is returned.
- 5. Otherwise count is incremented and scanning continues
- until end of string. */
-
-#include <sysdep.h>
-
-EALIGN(strspn, 4, 0)
- CALL_MCOUNT 3
-
- /* PPC64 ELF ABI stack is aligned to 16 bytes. */
- addi r9,r1,-256
- /* Clear the table with 0 values */
- li r6, 0
- li r8, 4
- mtctr r8
- mr r10, r9
- .align 4
-L(zerohash):
- std r6, 0(r10)
- std r6, 8(r10)
- std r6, 16(r10)
- std r6, 24(r10)
- std r6, 32(r10)
- std r6, 40(r10)
- std r6, 48(r10)
- std r6, 56(r10)
- addi r10, r10, 64
- bdnz L(zerohash)
-
- lbz r10,0(r4)
- li r8, 1 /* r8=1, marker into hash if found in
- needle */
- cmpdi cr7, r10, 0 /* accept needle is NULL */
- beq cr7, L(skipHashing) /* if needle is NULL, skip hashing */
-
- .align 4 /* align section to 16 byte boundary */
-L(hashing):
- stbx r8, r9, r10 /* update hash with marker for the pivot of
- the needle */
- lbzu r10, 1(r4) /* load needle into r10 and update to next */
- cmpdi cr7, r10, 0 /* if needle is has reached NULL, continue */
- bne cr7, L(hashing) /* loop to hash the needle */
-
-L(skipHashing):
- li r10, 0 /* load counter = 0 */
- b L(beginScan)
-
- .align 4 /* align section to 16 byte boundary */
-L(scanUnroll):
- lbzx r8, r9, r8 /* load r8 with hash value at index */
- cmpwi cr7, r8, 0 /* if we hit marker in hash, we have found
- accept needle */
- beq cr7, L(ret1stIndex) /* we have hit accept needle, return the
- count */
-
- lbz r8, 1(r3) /* load string[1] into r8 */
- addi r10, r10, 4 /* increment counter */
- lbzx r8, r9, r8 /* load r8 with hash value at index */
- cmpwi cr7, r8, 0 /* if we hit marker in hash, we have found
- accept needle */
- beq cr7, L(ret2ndIndex) /* we have hit accept needle, return the
- count */
-
- lbz r8, 2(r3) /* load string[2] into r8 */
- lbzx r8, r9, r8 /* load r8 with hash value at index */
- cmpwi cr7, r8, 0 /* if we hit marker in hash, we have found
- accept needle */
- beq cr7, L(ret3rdIndex) /* we have hit accept needle, return the
- count */
-
- lbz r8, 3(r3) /* load string[3] into r8 */
- lbzx r8, r9, r8 /* load r8 with hash value at index */
- addi r3, r3, 4 /* unroll factor , increment string by 4 */
- cmpwi cr7, r8, 0 /* if we hit marker in hash, we have found
- accept needle */
- beq cr7,L(ret4thIndex) /* we have hit accept needle, return the
- count */
-
-L(beginScan):
- lbz r8, 0(r3) /* load string[0] into r8 */
- addi r6, r10, 1 /* place holder for counter + 1 */
- addi r5, r10, 2 /* place holder for counter + 2 */
- addi r4, r10, 3 /* place holder for counter + 3 */
- cmpdi cr7, r8, 0 /* if we hit marker in hash, we have found
- accept needle */
- bne cr7, L(scanUnroll) /* continue scanning */
-
-L(ret1stIndex):
- mr r3, r10 /* update r3 for return */
- blr /* return */
-
-L(ret2ndIndex):
- mr r3, r6 /* update r3 for return */
- blr /* return */
-
-L(ret3rdIndex):
- mr r3, r5 /* update r3 for return */
- blr /* return */
-
-L(ret4thIndex):
- mr r3, r4 /* update r3 for return */
- blr /* done */
-END(strspn)
-libc_hidden_builtin_def (strspn)
generated by cgit v1.1 at 2024-12-25 04:59:21 +0000