diff options
Diffstat (limited to 'sysdeps/x86_64/wcsrchr.S')
| -rw-r--r-- | sysdeps/x86_64/wcsrchr.S | 282 |
1 files changed, 0 insertions, 282 deletions
diff --git a/sysdeps/x86_64/wcsrchr.S b/sysdeps/x86_64/wcsrchr.S deleted file mode 100644 index a6c385c511..0000000000 --- a/sysdeps/x86_64/wcsrchr.S +++ /dev/null @@ -1,282 +0,0 @@ -/* wcsrchr with SSSE3 - Copyright (C) 2011-2017 Free Software Foundation, Inc. - Contributed by Intel Corporation. - 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> - - .text -ENTRY (wcsrchr) - - movd %rsi, %xmm1 - mov %rdi, %rcx - punpckldq %xmm1, %xmm1 - pxor %xmm2, %xmm2 - punpckldq %xmm1, %xmm1 - and $63, %rcx - cmp $48, %rcx - ja L(crosscache) - - movdqu (%rdi), %xmm0 - pcmpeqd %xmm0, %xmm2 - pcmpeqd %xmm1, %xmm0 - pmovmskb %xmm2, %rcx - pmovmskb %xmm0, %rax - add $16, %rdi - - test %rax, %rax - jnz L(unaligned_match1) - - test %rcx, %rcx - jnz L(return_null) - - and $-16, %rdi - xor %r8, %r8 - jmp L(loop) - - .p2align 4 -L(unaligned_match1): - test %rcx, %rcx - jnz L(prolog_find_zero_1) - - mov %rax, %r8 - mov %rdi, %rsi - and $-16, %rdi - jmp L(loop) - - .p2align 4 -L(crosscache): - and $15, %rcx - and $-16, %rdi - pxor %xmm3, %xmm3 - movdqa (%rdi), %xmm0 - pcmpeqd %xmm0, %xmm3 - pcmpeqd %xmm1, %xmm0 - pmovmskb %xmm3, %rdx - pmovmskb %xmm0, %rax - shr %cl, %rdx - shr %cl, %rax - add $16, %rdi - - test %rax, %rax - jnz L(unaligned_match) - - test %rdx, %rdx - jnz L(return_null) - - xor %r8, %r8 - jmp L(loop) - - .p2align 4 -L(unaligned_match): - test %rdx, %rdx - jnz L(prolog_find_zero) - - mov %rax, %r8 - lea (%rdi, %rcx), %rsi - -/* Loop start on aligned string. */ - .p2align 4 -L(loop): - movdqa (%rdi), %xmm0 - pcmpeqd %xmm0, %xmm2 - add $16, %rdi - pcmpeqd %xmm1, %xmm0 - pmovmskb %xmm2, %rcx - pmovmskb %xmm0, %rax - or %rax, %rcx - jnz L(matches) - - movdqa (%rdi), %xmm3 - pcmpeqd %xmm3, %xmm2 - add $16, %rdi - pcmpeqd %xmm1, %xmm3 - pmovmskb %xmm2, %rcx - pmovmskb %xmm3, %rax - or %rax, %rcx - jnz L(matches) - - movdqa (%rdi), %xmm4 - pcmpeqd %xmm4, %xmm2 - add $16, %rdi - pcmpeqd %xmm1, %xmm4 - pmovmskb %xmm2, %rcx - pmovmskb %xmm4, %rax - or %rax, %rcx - jnz L(matches) - - movdqa (%rdi), %xmm5 - pcmpeqd %xmm5, %xmm2 - add $16, %rdi - pcmpeqd %xmm1, %xmm5 - pmovmskb %xmm2, %rcx - pmovmskb %xmm5, %rax - or %rax, %rcx - jz L(loop) - - .p2align 4 -L(matches): - test %rax, %rax - jnz L(match) -L(return_value): - test %r8, %r8 - jz L(return_null) - mov %r8, %rax - mov %rsi, %rdi - - test $15 << 4, %ah - jnz L(match_fourth_wchar) - test %ah, %ah - jnz L(match_third_wchar) - test $15 << 4, %al - jnz L(match_second_wchar) - lea -16(%rdi), %rax - ret - - .p2align 4 -L(match): - pmovmskb %xmm2, %rcx - test %rcx, %rcx - jnz L(find_zero) - mov %rax, %r8 - mov %rdi, %rsi - jmp L(loop) - - .p2align 4 -L(find_zero): - test $15, %cl - jnz L(find_zero_in_first_wchar) - test %cl, %cl - jnz L(find_zero_in_second_wchar) - test $15, %ch - jnz L(find_zero_in_third_wchar) - - and $1 << 13 - 1, %rax - jz L(return_value) - - test $15 << 4, %ah - jnz L(match_fourth_wchar) - test %ah, %ah - jnz L(match_third_wchar) - test $15 << 4, %al - jnz L(match_second_wchar) - lea -16(%rdi), %rax - ret - - .p2align 4 -L(find_zero_in_first_wchar): - test $1, %rax - jz L(return_value) - lea -16(%rdi), %rax - ret - - .p2align 4 -L(find_zero_in_second_wchar): - and $1 << 5 - 1, %rax - jz L(return_value) - - test $15 << 4, %al - jnz L(match_second_wchar) - lea -16(%rdi), %rax - ret - - .p2align 4 -L(find_zero_in_third_wchar): - and $1 << 9 - 1, %rax - jz L(return_value) - - test %ah, %ah - jnz L(match_third_wchar) - test $15 << 4, %al - jnz L(match_second_wchar) - lea -16(%rdi), %rax - ret - - .p2align 4 -L(prolog_find_zero): - add %rcx, %rdi - mov %rdx, %rcx -L(prolog_find_zero_1): - test $15, %cl - jnz L(prolog_find_zero_in_first_wchar) - test %cl, %cl - jnz L(prolog_find_zero_in_second_wchar) - test $15, %ch - jnz L(prolog_find_zero_in_third_wchar) - - and $1 << 13 - 1, %rax - jz L(return_null) - - test $15 << 4, %ah - jnz L(match_fourth_wchar) - test %ah, %ah - jnz L(match_third_wchar) - test $15 << 4, %al - jnz L(match_second_wchar) - lea -16(%rdi), %rax - ret - - .p2align 4 -L(prolog_find_zero_in_first_wchar): - test $1, %rax - jz L(return_null) - lea -16(%rdi), %rax - ret - - .p2align 4 -L(prolog_find_zero_in_second_wchar): - and $1 << 5 - 1, %rax - jz L(return_null) - - test $15 << 4, %al - jnz L(match_second_wchar) - lea -16(%rdi), %rax - ret - - .p2align 4 -L(prolog_find_zero_in_third_wchar): - and $1 << 9 - 1, %rax - jz L(return_null) - - test %ah, %ah - jnz L(match_third_wchar) - test $15 << 4, %al - jnz L(match_second_wchar) - lea -16(%rdi), %rax - ret - - .p2align 4 -L(match_second_wchar): - lea -12(%rdi), %rax - ret - - .p2align 4 -L(match_third_wchar): - lea -8(%rdi), %rax - ret - - .p2align 4 -L(match_fourth_wchar): - lea -4(%rdi), %rax - ret - - .p2align 4 -L(return_null): - xor %rax, %rax - ret - -END (wcsrchr) |