glibc/sysdeps/x86_64/multiarch/wcscpy-ssse3.S

553 lines
9.6 KiB
ArmAsm

/* wcscpy with SSSE3
Copyright (C) 2011-2013 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/>. */
#ifndef NOT_IN_libc
# include <sysdep.h>
.section .text.ssse3,"ax",@progbits
ENTRY (__wcscpy_ssse3)
mov %rsi, %rcx
mov %rdi, %rdx
cmpl $0, (%rcx)
jz L(Exit4)
cmpl $0, 4(%rcx)
jz L(Exit8)
cmpl $0, 8(%rcx)
jz L(Exit12)
cmpl $0, 12(%rcx)
jz L(Exit16)
lea 16(%rcx), %rsi
and $-16, %rsi
pxor %xmm0, %xmm0
mov (%rcx), %r9
mov %r9, (%rdx)
pcmpeqd (%rsi), %xmm0
mov 8(%rcx), %r9
mov %r9, 8(%rdx)
pmovmskb %xmm0, %rax
sub %rcx, %rsi
test %rax, %rax
jnz L(CopyFrom1To16Bytes)
mov %rdx, %rax
lea 16(%rdx), %rdx
and $-16, %rdx
sub %rdx, %rax
sub %rax, %rcx
mov %rcx, %rax
and $0xf, %rax
mov $0, %rsi
/* case: rcx_offset == rdx_offset */
jz L(Align16Both)
cmp $4, %rax
je L(Shl4)
cmp $8, %rax
je L(Shl8)
jmp L(Shl12)
L(Align16Both):
movaps (%rcx), %xmm1
movaps 16(%rcx), %xmm2
movaps %xmm1, (%rdx)
pcmpeqd %xmm2, %xmm0
pmovmskb %xmm0, %rax
lea 16(%rsi), %rsi
test %rax, %rax
jnz L(CopyFrom1To16Bytes)
movaps 16(%rcx, %rsi), %xmm3
movaps %xmm2, (%rdx, %rsi)
pcmpeqd %xmm3, %xmm0
pmovmskb %xmm0, %rax
lea 16(%rsi), %rsi
test %rax, %rax
jnz L(CopyFrom1To16Bytes)
movaps 16(%rcx, %rsi), %xmm4
movaps %xmm3, (%rdx, %rsi)
pcmpeqd %xmm4, %xmm0
pmovmskb %xmm0, %rax
lea 16(%rsi), %rsi
test %rax, %rax
jnz L(CopyFrom1To16Bytes)
movaps 16(%rcx, %rsi), %xmm1
movaps %xmm4, (%rdx, %rsi)
pcmpeqd %xmm1, %xmm0
pmovmskb %xmm0, %rax
lea 16(%rsi), %rsi
test %rax, %rax
jnz L(CopyFrom1To16Bytes)
movaps 16(%rcx, %rsi), %xmm2
movaps %xmm1, (%rdx, %rsi)
pcmpeqd %xmm2, %xmm0
pmovmskb %xmm0, %rax
lea 16(%rsi), %rsi
test %rax, %rax
jnz L(CopyFrom1To16Bytes)
movaps 16(%rcx, %rsi), %xmm3
movaps %xmm2, (%rdx, %rsi)
pcmpeqd %xmm3, %xmm0
pmovmskb %xmm0, %rax
lea 16(%rsi), %rsi
test %rax, %rax
jnz L(CopyFrom1To16Bytes)
movaps %xmm3, (%rdx, %rsi)
mov %rcx, %rax
lea 16(%rcx, %rsi), %rcx
and $-0x40, %rcx
sub %rcx, %rax
sub %rax, %rdx
mov $-0x40, %rsi
.p2align 4
L(Aligned64Loop):
movaps (%rcx), %xmm2
movaps %xmm2, %xmm4
movaps 16(%rcx), %xmm5
movaps 32(%rcx), %xmm3
movaps %xmm3, %xmm6
movaps 48(%rcx), %xmm7
pminub %xmm5, %xmm2
pminub %xmm7, %xmm3
pminub %xmm2, %xmm3
pcmpeqd %xmm0, %xmm3
pmovmskb %xmm3, %rax
lea 64(%rdx), %rdx
lea 64(%rcx), %rcx
test %rax, %rax
jnz L(Aligned64Leave)
movaps %xmm4, -64(%rdx)
movaps %xmm5, -48(%rdx)
movaps %xmm6, -32(%rdx)
movaps %xmm7, -16(%rdx)
jmp L(Aligned64Loop)
L(Aligned64Leave):
pcmpeqd %xmm4, %xmm0
pmovmskb %xmm0, %rax
test %rax, %rax
jnz L(CopyFrom1To16Bytes)
pcmpeqd %xmm5, %xmm0
pmovmskb %xmm0, %rax
movaps %xmm4, -64(%rdx)
test %rax, %rax
lea 16(%rsi), %rsi
jnz L(CopyFrom1To16Bytes)
pcmpeqd %xmm6, %xmm0
pmovmskb %xmm0, %rax
movaps %xmm5, -48(%rdx)
test %rax, %rax
lea 16(%rsi), %rsi
jnz L(CopyFrom1To16Bytes)
movaps %xmm6, -32(%rdx)
pcmpeqd %xmm7, %xmm0
pmovmskb %xmm0, %rax
lea 16(%rsi), %rsi
test %rax, %rax
jnz L(CopyFrom1To16Bytes)
mov $-0x40, %rsi
movaps %xmm7, -16(%rdx)
jmp L(Aligned64Loop)
.p2align 4
L(Shl4):
movaps -4(%rcx), %xmm1
movaps 12(%rcx), %xmm2
L(Shl4Start):
pcmpeqd %xmm2, %xmm0
pmovmskb %xmm0, %rax
movaps %xmm2, %xmm3
test %rax, %rax
jnz L(Shl4LoopExit)
palignr $4, %xmm1, %xmm2
movaps %xmm2, (%rdx)
movaps 28(%rcx), %xmm2
pcmpeqd %xmm2, %xmm0
lea 16(%rdx), %rdx
pmovmskb %xmm0, %rax
lea 16(%rcx), %rcx
movaps %xmm2, %xmm1
test %rax, %rax
jnz L(Shl4LoopExit)
palignr $4, %xmm3, %xmm2
movaps %xmm2, (%rdx)
movaps 28(%rcx), %xmm2
pcmpeqd %xmm2, %xmm0
lea 16(%rdx), %rdx
pmovmskb %xmm0, %rax
lea 16(%rcx), %rcx
movaps %xmm2, %xmm3
test %rax, %rax
jnz L(Shl4LoopExit)
palignr $4, %xmm1, %xmm2
movaps %xmm2, (%rdx)
movaps 28(%rcx), %xmm2
pcmpeqd %xmm2, %xmm0
lea 16(%rdx), %rdx
pmovmskb %xmm0, %rax
lea 16(%rcx), %rcx
test %rax, %rax
jnz L(Shl4LoopExit)
palignr $4, %xmm3, %xmm2
movaps %xmm2, (%rdx)
lea 28(%rcx), %rcx
lea 16(%rdx), %rdx
mov %rcx, %rax
and $-0x40, %rcx
sub %rcx, %rax
lea -12(%rcx), %rcx
sub %rax, %rdx
movaps -4(%rcx), %xmm1
.p2align 4
L(Shl4LoopStart):
movaps 12(%rcx), %xmm2
movaps 28(%rcx), %xmm3
movaps %xmm3, %xmm6
movaps 44(%rcx), %xmm4
movaps %xmm4, %xmm7
movaps 60(%rcx), %xmm5
pminub %xmm2, %xmm6
pminub %xmm5, %xmm7
pminub %xmm6, %xmm7
pcmpeqd %xmm0, %xmm7
pmovmskb %xmm7, %rax
movaps %xmm5, %xmm7
palignr $4, %xmm4, %xmm5
test %rax, %rax
palignr $4, %xmm3, %xmm4
jnz L(Shl4Start)
palignr $4, %xmm2, %xmm3
lea 64(%rcx), %rcx
palignr $4, %xmm1, %xmm2
movaps %xmm7, %xmm1
movaps %xmm5, 48(%rdx)
movaps %xmm4, 32(%rdx)
movaps %xmm3, 16(%rdx)
movaps %xmm2, (%rdx)
lea 64(%rdx), %rdx
jmp L(Shl4LoopStart)
L(Shl4LoopExit):
movdqu -4(%rcx), %xmm1
mov $12, %rsi
movdqu %xmm1, -4(%rdx)
jmp L(CopyFrom1To16Bytes)
.p2align 4
L(Shl8):
movaps -8(%rcx), %xmm1
movaps 8(%rcx), %xmm2
L(Shl8Start):
pcmpeqd %xmm2, %xmm0
pmovmskb %xmm0, %rax
movaps %xmm2, %xmm3
test %rax, %rax
jnz L(Shl8LoopExit)
palignr $8, %xmm1, %xmm2
movaps %xmm2, (%rdx)
movaps 24(%rcx), %xmm2
pcmpeqd %xmm2, %xmm0
lea 16(%rdx), %rdx
pmovmskb %xmm0, %rax
lea 16(%rcx), %rcx
movaps %xmm2, %xmm1
test %rax, %rax
jnz L(Shl8LoopExit)
palignr $8, %xmm3, %xmm2
movaps %xmm2, (%rdx)
movaps 24(%rcx), %xmm2
pcmpeqd %xmm2, %xmm0
lea 16(%rdx), %rdx
pmovmskb %xmm0, %rax
lea 16(%rcx), %rcx
movaps %xmm2, %xmm3
test %rax, %rax
jnz L(Shl8LoopExit)
palignr $8, %xmm1, %xmm2
movaps %xmm2, (%rdx)
movaps 24(%rcx), %xmm2
pcmpeqd %xmm2, %xmm0
lea 16(%rdx), %rdx
pmovmskb %xmm0, %rax
lea 16(%rcx), %rcx
test %rax, %rax
jnz L(Shl8LoopExit)
palignr $8, %xmm3, %xmm2
movaps %xmm2, (%rdx)
lea 24(%rcx), %rcx
lea 16(%rdx), %rdx
mov %rcx, %rax
and $-0x40, %rcx
sub %rcx, %rax
lea -8(%rcx), %rcx
sub %rax, %rdx
movaps -8(%rcx), %xmm1
.p2align 4
L(Shl8LoopStart):
movaps 8(%rcx), %xmm2
movaps 24(%rcx), %xmm3
movaps %xmm3, %xmm6
movaps 40(%rcx), %xmm4
movaps %xmm4, %xmm7
movaps 56(%rcx), %xmm5
pminub %xmm2, %xmm6
pminub %xmm5, %xmm7
pminub %xmm6, %xmm7
pcmpeqd %xmm0, %xmm7
pmovmskb %xmm7, %rax
movaps %xmm5, %xmm7
palignr $8, %xmm4, %xmm5
test %rax, %rax
palignr $8, %xmm3, %xmm4
jnz L(Shl8Start)
palignr $8, %xmm2, %xmm3
lea 64(%rcx), %rcx
palignr $8, %xmm1, %xmm2
movaps %xmm7, %xmm1
movaps %xmm5, 48(%rdx)
movaps %xmm4, 32(%rdx)
movaps %xmm3, 16(%rdx)
movaps %xmm2, (%rdx)
lea 64(%rdx), %rdx
jmp L(Shl8LoopStart)
L(Shl8LoopExit):
mov (%rcx), %r9
mov $8, %rsi
mov %r9, (%rdx)
jmp L(CopyFrom1To16Bytes)
.p2align 4
L(Shl12):
movaps -12(%rcx), %xmm1
movaps 4(%rcx), %xmm2
L(Shl12Start):
pcmpeqd %xmm2, %xmm0
pmovmskb %xmm0, %rax
movaps %xmm2, %xmm3
test %rax, %rax
jnz L(Shl12LoopExit)
palignr $12, %xmm1, %xmm2
movaps %xmm2, (%rdx)
movaps 20(%rcx), %xmm2
pcmpeqd %xmm2, %xmm0
lea 16(%rdx), %rdx
pmovmskb %xmm0, %rax
lea 16(%rcx), %rcx
movaps %xmm2, %xmm1
test %rax, %rax
jnz L(Shl12LoopExit)
palignr $12, %xmm3, %xmm2
movaps %xmm2, (%rdx)
movaps 20(%rcx), %xmm2
pcmpeqd %xmm2, %xmm0
lea 16(%rdx), %rdx
pmovmskb %xmm0, %rax
lea 16(%rcx), %rcx
movaps %xmm2, %xmm3
test %rax, %rax
jnz L(Shl12LoopExit)
palignr $12, %xmm1, %xmm2
movaps %xmm2, (%rdx)
movaps 20(%rcx), %xmm2
pcmpeqd %xmm2, %xmm0
lea 16(%rdx), %rdx
pmovmskb %xmm0, %rax
lea 16(%rcx), %rcx
test %rax, %rax
jnz L(Shl12LoopExit)
palignr $12, %xmm3, %xmm2
movaps %xmm2, (%rdx)
lea 20(%rcx), %rcx
lea 16(%rdx), %rdx
mov %rcx, %rax
and $-0x40, %rcx
sub %rcx, %rax
lea -4(%rcx), %rcx
sub %rax, %rdx
movaps -12(%rcx), %xmm1
.p2align 4
L(Shl12LoopStart):
movaps 4(%rcx), %xmm2
movaps 20(%rcx), %xmm3
movaps %xmm3, %xmm6
movaps 36(%rcx), %xmm4
movaps %xmm4, %xmm7
movaps 52(%rcx), %xmm5
pminub %xmm2, %xmm6
pminub %xmm5, %xmm7
pminub %xmm6, %xmm7
pcmpeqd %xmm0, %xmm7
pmovmskb %xmm7, %rax
movaps %xmm5, %xmm7
palignr $12, %xmm4, %xmm5
test %rax, %rax
palignr $12, %xmm3, %xmm4
jnz L(Shl12Start)
palignr $12, %xmm2, %xmm3
lea 64(%rcx), %rcx
palignr $12, %xmm1, %xmm2
movaps %xmm7, %xmm1
movaps %xmm5, 48(%rdx)
movaps %xmm4, 32(%rdx)
movaps %xmm3, 16(%rdx)
movaps %xmm2, (%rdx)
lea 64(%rdx), %rdx
jmp L(Shl12LoopStart)
L(Shl12LoopExit):
mov (%rcx), %r9d
mov $4, %rsi
mov %r9d, (%rdx)
jmp L(CopyFrom1To16Bytes)
.p2align 4
L(CopyFrom1To16Bytes):
add %rsi, %rdx
add %rsi, %rcx
test %al, %al
jz L(ExitHigh)
test $0x01, %al
jnz L(Exit4)
mov (%rcx), %rax
mov %rax, (%rdx)
mov %rdi, %rax
ret
.p2align 4
L(ExitHigh):
test $0x01, %ah
jnz L(Exit12)
mov (%rcx), %rax
mov %rax, (%rdx)
mov 8(%rcx), %rax
mov %rax, 8(%rdx)
mov %rdi, %rax
ret
.p2align 4
L(Exit4):
movl (%rcx), %eax
movl %eax, (%rdx)
mov %rdi, %rax
ret
.p2align 4
L(Exit8):
mov (%rcx), %rax
mov %rax, (%rdx)
mov %rdi, %rax
ret
.p2align 4
L(Exit12):
mov (%rcx), %rax
mov %rax, (%rdx)
mov 8(%rcx), %eax
mov %eax, 8(%rdx)
mov %rdi, %rax
ret
.p2align 4
L(Exit16):
mov (%rcx), %rax
mov %rax, (%rdx)
mov 8(%rcx), %rax
mov %rax, 8(%rdx)
mov %rdi, %rax
ret
END(__wcscpy_ssse3)
#endif