diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/strlen-sse4.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strlen-sse4.S | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/sysdeps/x86_64/multiarch/strlen-sse4.S b/sysdeps/x86_64/multiarch/strlen-sse4.S deleted file mode 100644 index 8d685df0cf..0000000000 --- a/sysdeps/x86_64/multiarch/strlen-sse4.S +++ /dev/null @@ -1,84 +0,0 @@ -/* strlen with SSE4 - Copyright (C) 2009-2013 Free Software Foundation, Inc. - Contributed by Ulrich Drepper <drepper@redhat.com>. - 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/>. */ - -#if defined SHARED && !defined NOT_IN_libc - -#include <sysdep.h> - - .section .text.sse4.2,"ax",@progbits -ENTRY (__strlen_sse42) - pxor %xmm1, %xmm1 - movl %edi, %ecx - movq %rdi, %r8 - andq $~15, %rdi - xor %edi, %ecx - pcmpeqb (%rdi), %xmm1 - pmovmskb %xmm1, %edx - shrl %cl, %edx - shll %cl, %edx - andl %edx, %edx - jnz L(less16bytes) - pxor %xmm1, %xmm1 - - .p2align 4 -L(more64bytes_loop): - pcmpistri $0x08, 16(%rdi), %xmm1 - jz L(more32bytes) - - pcmpistri $0x08, 32(%rdi), %xmm1 - jz L(more48bytes) - - pcmpistri $0x08, 48(%rdi), %xmm1 - jz L(more64bytes) - - add $64, %rdi - pcmpistri $0x08, (%rdi), %xmm1 - jnz L(more64bytes_loop) - leaq (%rdi,%rcx), %rax - subq %r8, %rax - ret - - .p2align 4 -L(more32bytes): - leaq 16(%rdi,%rcx, 1), %rax - subq %r8, %rax - ret - - .p2align 4 -L(more48bytes): - leaq 32(%rdi,%rcx, 1), %rax - subq %r8, %rax - ret - - .p2align 4 -L(more64bytes): - leaq 48(%rdi,%rcx, 1), %rax - subq %r8, %rax - ret - - .p2align 4 -L(less16bytes): - subq %r8, %rdi - bsfl %edx, %eax - addq %rdi, %rax - ret - -END (__strlen_sse42) - -#endif |