diff options
Diffstat (limited to 'sysdeps/x86_64/wcslen.S')
| -rw-r--r-- | sysdeps/x86_64/wcslen.S | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/sysdeps/x86_64/wcslen.S b/sysdeps/x86_64/wcslen.S deleted file mode 100644 index c6081a482f..0000000000 --- a/sysdeps/x86_64/wcslen.S +++ /dev/null @@ -1,238 +0,0 @@ -/* Optimized wcslen for x86-64 with SSE2. - 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 (__wcslen) - cmpl $0, (%rdi) - jz L(exit_tail0) - cmpl $0, 4(%rdi) - jz L(exit_tail1) - cmpl $0, 8(%rdi) - jz L(exit_tail2) - cmpl $0, 12(%rdi) - jz L(exit_tail3) - cmpl $0, 16(%rdi) - jz L(exit_tail4) - cmpl $0, 20(%rdi) - jz L(exit_tail5) - cmpl $0, 24(%rdi) - jz L(exit_tail6) - cmpl $0, 28(%rdi) - jz L(exit_tail7) - - pxor %xmm0, %xmm0 - - lea 32(%rdi), %rax - lea 16(%rdi), %rcx - and $-16, %rax - - pcmpeqd (%rax), %xmm0 - pmovmskb %xmm0, %edx - pxor %xmm1, %xmm1 - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - pcmpeqd (%rax), %xmm1 - pmovmskb %xmm1, %edx - pxor %xmm2, %xmm2 - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - pcmpeqd (%rax), %xmm2 - pmovmskb %xmm2, %edx - pxor %xmm3, %xmm3 - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - pcmpeqd (%rax), %xmm3 - pmovmskb %xmm3, %edx - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - pcmpeqd (%rax), %xmm0 - pmovmskb %xmm0, %edx - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - pcmpeqd (%rax), %xmm1 - pmovmskb %xmm1, %edx - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - pcmpeqd (%rax), %xmm2 - pmovmskb %xmm2, %edx - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - pcmpeqd (%rax), %xmm3 - pmovmskb %xmm3, %edx - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - pcmpeqd (%rax), %xmm0 - pmovmskb %xmm0, %edx - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - pcmpeqd (%rax), %xmm1 - pmovmskb %xmm1, %edx - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - pcmpeqd (%rax), %xmm2 - pmovmskb %xmm2, %edx - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - pcmpeqd (%rax), %xmm3 - pmovmskb %xmm3, %edx - test %edx, %edx - lea 16(%rax), %rax - jnz L(exit) - - and $-0x40, %rax - - .p2align 4 -L(aligned_64_loop): - movaps (%rax), %xmm0 - movaps 16(%rax), %xmm1 - movaps 32(%rax), %xmm2 - movaps 48(%rax), %xmm6 - - pminub %xmm1, %xmm0 - pminub %xmm6, %xmm2 - pminub %xmm0, %xmm2 - pcmpeqd %xmm3, %xmm2 - pmovmskb %xmm2, %edx - test %edx, %edx - lea 64(%rax), %rax - jz L(aligned_64_loop) - - pcmpeqd -64(%rax), %xmm3 - pmovmskb %xmm3, %edx - test %edx, %edx - lea 48(%rcx), %rcx - jnz L(exit) - - pcmpeqd %xmm1, %xmm3 - pmovmskb %xmm3, %edx - test %edx, %edx - lea -16(%rcx), %rcx - jnz L(exit) - - pcmpeqd -32(%rax), %xmm3 - pmovmskb %xmm3, %edx - test %edx, %edx - lea -16(%rcx), %rcx - jnz L(exit) - - pcmpeqd %xmm6, %xmm3 - pmovmskb %xmm3, %edx - test %edx, %edx - lea -16(%rcx), %rcx - jnz L(exit) - - jmp L(aligned_64_loop) - - .p2align 4 -L(exit): - sub %rcx, %rax - shr $2, %rax - test %dl, %dl - jz L(exit_high) - - mov %dl, %cl - and $15, %cl - jz L(exit_1) - ret - - .p2align 4 -L(exit_high): - mov %dh, %ch - and $15, %ch - jz L(exit_3) - add $2, %rax - ret - - .p2align 4 -L(exit_1): - add $1, %rax - ret - - .p2align 4 -L(exit_3): - add $3, %rax - ret - - .p2align 4 -L(exit_tail0): - xor %rax, %rax - ret - - .p2align 4 -L(exit_tail1): - mov $1, %rax - ret - - .p2align 4 -L(exit_tail2): - mov $2, %rax - ret - - .p2align 4 -L(exit_tail3): - mov $3, %rax - ret - - .p2align 4 -L(exit_tail4): - mov $4, %rax - ret - - .p2align 4 -L(exit_tail5): - mov $5, %rax - ret - - .p2align 4 -L(exit_tail6): - mov $6, %rax - ret - - .p2align 4 -L(exit_tail7): - mov $7, %rax - ret - -END (__wcslen) - -weak_alias(__wcslen, wcslen) |