diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S b/sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S deleted file mode 100644 index c4509831fa..0000000000 --- a/sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S +++ /dev/null @@ -1,175 +0,0 @@ -/* memcpy with unaliged loads - Copyright (C) 2013-2016 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/>. */ - -#if IS_IN (libc) - -#include <sysdep.h> - -#include "asm-syntax.h" - - -ENTRY(__memcpy_sse2_unaligned) - movq %rsi, %rax - leaq (%rdx,%rdx), %rcx - subq %rdi, %rax - subq %rdx, %rax - cmpq %rcx, %rax - jb L(overlapping) - cmpq $16, %rdx - jbe L(less_16) - movdqu (%rsi), %xmm8 - cmpq $32, %rdx - movdqu %xmm8, (%rdi) - movdqu -16(%rsi,%rdx), %xmm8 - movdqu %xmm8, -16(%rdi,%rdx) - ja .L31 -L(return): - movq %rdi, %rax - ret - .p2align 4,,10 - .p2align 4 -.L31: - movdqu 16(%rsi), %xmm8 - cmpq $64, %rdx - movdqu %xmm8, 16(%rdi) - movdqu -32(%rsi,%rdx), %xmm8 - movdqu %xmm8, -32(%rdi,%rdx) - jbe L(return) - movdqu 32(%rsi), %xmm8 - cmpq $128, %rdx - movdqu %xmm8, 32(%rdi) - movdqu -48(%rsi,%rdx), %xmm8 - movdqu %xmm8, -48(%rdi,%rdx) - movdqu 48(%rsi), %xmm8 - movdqu %xmm8, 48(%rdi) - movdqu -64(%rsi,%rdx), %xmm8 - movdqu %xmm8, -64(%rdi,%rdx) - jbe L(return) - leaq 64(%rdi), %rcx - addq %rdi, %rdx - andq $-64, %rdx - andq $-64, %rcx - movq %rcx, %rax - subq %rdi, %rax - addq %rax, %rsi - cmpq %rdx, %rcx - je L(return) - movq %rsi, %r10 - subq %rcx, %r10 - leaq 16(%r10), %r9 - leaq 32(%r10), %r8 - leaq 48(%r10), %rax - .p2align 4,,10 - .p2align 4 -L(loop): - movdqu (%rcx,%r10), %xmm8 - movdqa %xmm8, (%rcx) - movdqu (%rcx,%r9), %xmm8 - movdqa %xmm8, 16(%rcx) - movdqu (%rcx,%r8), %xmm8 - movdqa %xmm8, 32(%rcx) - movdqu (%rcx,%rax), %xmm8 - movdqa %xmm8, 48(%rcx) - addq $64, %rcx - cmpq %rcx, %rdx - jne L(loop) - jmp L(return) -L(overlapping): - cmpq %rsi, %rdi - jae .L3 - testq %rdx, %rdx - .p2align 4,,5 - je L(return) - movq %rdx, %r9 - leaq 16(%rsi), %rcx - leaq 16(%rdi), %r8 - shrq $4, %r9 - movq %r9, %rax - salq $4, %rax - cmpq %rcx, %rdi - setae %cl - cmpq %r8, %rsi - setae %r8b - orl %r8d, %ecx - cmpq $15, %rdx - seta %r8b - testb %r8b, %cl - je .L16 - testq %rax, %rax - je .L16 - xorl %ecx, %ecx - xorl %r8d, %r8d -.L7: - movdqu (%rsi,%rcx), %xmm8 - addq $1, %r8 - movdqu %xmm8, (%rdi,%rcx) - addq $16, %rcx - cmpq %r8, %r9 - ja .L7 - cmpq %rax, %rdx - je L(return) -.L21: - movzbl (%rsi,%rax), %ecx - movb %cl, (%rdi,%rax) - addq $1, %rax - cmpq %rax, %rdx - ja .L21 - jmp L(return) -L(less_16): - testb $24, %dl - jne L(between_9_16) - testb $4, %dl - .p2align 4,,5 - jne L(between_5_8) - testq %rdx, %rdx - .p2align 4,,2 - je L(return) - movzbl (%rsi), %eax - testb $2, %dl - movb %al, (%rdi) - je L(return) - movzwl -2(%rsi,%rdx), %eax - movw %ax, -2(%rdi,%rdx) - jmp L(return) -.L3: - leaq -1(%rdx), %rax - .p2align 4,,10 - .p2align 4 -.L11: - movzbl (%rsi,%rax), %edx - movb %dl, (%rdi,%rax) - subq $1, %rax - jmp .L11 -L(between_9_16): - movq (%rsi), %rax - movq %rax, (%rdi) - movq -8(%rsi,%rdx), %rax - movq %rax, -8(%rdi,%rdx) - jmp L(return) -.L16: - xorl %eax, %eax - jmp .L21 -L(between_5_8): - movl (%rsi), %eax - movl %eax, (%rdi) - movl -4(%rsi,%rdx), %eax - movl %eax, -4(%rdi,%rdx) - jmp L(return) -END(__memcpy_sse2_unaligned) - -#endif |