/* Support sysdeps/x86_64/multiarch/memmove_chk.S. */
IFUNC_IMPL (i, name, __memmove_chk,
+ IFUNC_IMPL_ADD (array, i, __memmove_chk, HAS_AVX,
+ __memmove_chk_avx_unaligned)
IFUNC_IMPL_ADD (array, i, __memmove_chk, HAS_SSSE3,
__memmove_chk_ssse3_back)
IFUNC_IMPL_ADD (array, i, __memmove_chk, HAS_SSSE3,
/* Support sysdeps/x86_64/multiarch/memmove.S. */
IFUNC_IMPL (i, name, memmove,
+ IFUNC_IMPL_ADD (array, i, memmove, HAS_AVX,
+ __memmove_avx_unaligned)
IFUNC_IMPL_ADD (array, i, memmove, HAS_SSSE3,
__memmove_ssse3_back)
IFUNC_IMPL_ADD (array, i, memmove, HAS_SSSE3,
#ifdef SHARED
/* Support sysdeps/x86_64/multiarch/memcpy_chk.S. */
IFUNC_IMPL (i, name, __memcpy_chk,
+ IFUNC_IMPL_ADD (array, i, __memcpy_chk, HAS_AVX,
+ __memcpy_chk_avx_unaligned)
IFUNC_IMPL_ADD (array, i, __memcpy_chk, HAS_SSSE3,
__memcpy_chk_ssse3_back)
IFUNC_IMPL_ADD (array, i, __memcpy_chk, HAS_SSSE3,
/* Support sysdeps/x86_64/multiarch/memcpy.S. */
IFUNC_IMPL (i, name, memcpy,
+ IFUNC_IMPL_ADD (array, i, memcpy, HAS_AVX,
+ __memcpy_avx_unaligned)
IFUNC_IMPL_ADD (array, i, memcpy, HAS_SSSE3,
__memcpy_ssse3_back)
IFUNC_IMPL_ADD (array, i, memcpy, HAS_SSSE3, __memcpy_ssse3)
/* Support sysdeps/x86_64/multiarch/mempcpy_chk.S. */
IFUNC_IMPL (i, name, __mempcpy_chk,
+ IFUNC_IMPL_ADD (array, i, __mempcpy_chk, HAS_AVX,
+ __mempcpy_chk_avx_unaligned)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk, HAS_SSSE3,
__mempcpy_chk_ssse3_back)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk, HAS_SSSE3,
/* Support sysdeps/x86_64/multiarch/mempcpy.S. */
IFUNC_IMPL (i, name, mempcpy,
+ IFUNC_IMPL_ADD (array, i, mempcpy, HAS_AVX,
+ __mempcpy_avx_unaligned)
IFUNC_IMPL_ADD (array, i, mempcpy, HAS_SSSE3,
__mempcpy_ssse3_back)
IFUNC_IMPL_ADD (array, i, mempcpy, HAS_SSSE3,
--- /dev/null
+/* memcpy with AVX
+ Copyright (C) 2014 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/>. */
+
+#include <sysdep.h>
+
+#if !defined NOT_IN_libc \
+ && (defined SHARED \
+ || defined USE_AS_MEMMOVE \
+ || !defined USE_MULTIARCH)
+
+#include "asm-syntax.h"
+#ifndef MEMCPY
+# define MEMCPY __memcpy_avx_unaligned
+# define MEMCPY_CHK __memcpy_chk_avx_unaligned
+#endif
+
+ .section .text.avx,"ax",@progbits
+#if !defined USE_AS_BCOPY
+ENTRY (MEMCPY_CHK)
+ cmpq %rdx, %rcx
+ jb HIDDEN_JUMPTARGET (__chk_fail)
+END (MEMCPY_CHK)
+#endif
+
+ENTRY (MEMCPY)
+ mov %rdi, %rax
+#ifdef USE_AS_MEMPCPY
+ add %rdx, %rax
+#endif
+ cmp $256, %rdx
+ jae L(256bytesormore)
+ cmp $16, %dl
+ jb L(less_16bytes)
+ cmp $128, %dl
+ jb L(less_128bytes)
+ vmovdqu (%rsi), %xmm0
+ lea (%rsi, %rdx), %rcx
+ vmovdqu 0x10(%rsi), %xmm1
+ vmovdqu 0x20(%rsi), %xmm2
+ vmovdqu 0x30(%rsi), %xmm3
+ vmovdqu 0x40(%rsi), %xmm4
+ vmovdqu 0x50(%rsi), %xmm5
+ vmovdqu 0x60(%rsi), %xmm6
+ vmovdqu 0x70(%rsi), %xmm7
+ vmovdqu -0x80(%rcx), %xmm8
+ vmovdqu -0x70(%rcx), %xmm9
+ vmovdqu -0x60(%rcx), %xmm10
+ vmovdqu -0x50(%rcx), %xmm11
+ vmovdqu -0x40(%rcx), %xmm12
+ vmovdqu -0x30(%rcx), %xmm13
+ vmovdqu -0x20(%rcx), %xmm14
+ vmovdqu -0x10(%rcx), %xmm15
+ lea (%rdi, %rdx), %rdx
+ vmovdqu %xmm0, (%rdi)
+ vmovdqu %xmm1, 0x10(%rdi)
+ vmovdqu %xmm2, 0x20(%rdi)
+ vmovdqu %xmm3, 0x30(%rdi)
+ vmovdqu %xmm4, 0x40(%rdi)
+ vmovdqu %xmm5, 0x50(%rdi)
+ vmovdqu %xmm6, 0x60(%rdi)
+ vmovdqu %xmm7, 0x70(%rdi)
+ vmovdqu %xmm8, -0x80(%rdx)
+ vmovdqu %xmm9, -0x70(%rdx)
+ vmovdqu %xmm10, -0x60(%rdx)
+ vmovdqu %xmm11, -0x50(%rdx)
+ vmovdqu %xmm12, -0x40(%rdx)
+ vmovdqu %xmm13, -0x30(%rdx)
+ vmovdqu %xmm14, -0x20(%rdx)
+ vmovdqu %xmm15, -0x10(%rdx)
+ ret
+ .p2align 4
+L(less_128bytes):
+ cmp $64, %dl
+ jb L(less_64bytes)
+ vmovdqu (%rsi), %xmm0
+ lea (%rsi, %rdx), %rcx
+ vmovdqu 0x10(%rsi), %xmm1
+ vmovdqu 0x20(%rsi), %xmm2
+ lea (%rdi, %rdx), %rdx
+ vmovdqu 0x30(%rsi), %xmm3
+ vmovdqu -0x40(%rcx), %xmm4
+ vmovdqu -0x30(%rcx), %xmm5
+ vmovdqu -0x20(%rcx), %xmm6
+ vmovdqu -0x10(%rcx), %xmm7
+ vmovdqu %xmm0, (%rdi)
+ vmovdqu %xmm1, 0x10(%rdi)
+ vmovdqu %xmm2, 0x20(%rdi)
+ vmovdqu %xmm3, 0x30(%rdi)
+ vmovdqu %xmm4, -0x40(%rdx)
+ vmovdqu %xmm5, -0x30(%rdx)
+ vmovdqu %xmm6, -0x20(%rdx)
+ vmovdqu %xmm7, -0x10(%rdx)
+ ret
+
+ .p2align 4
+L(less_64bytes):
+ cmp $32, %dl
+ jb L(less_32bytes)
+ vmovdqu (%rsi), %xmm0
+ vmovdqu 0x10(%rsi), %xmm1
+ vmovdqu -0x20(%rsi, %rdx), %xmm6
+ vmovdqu -0x10(%rsi, %rdx), %xmm7
+ vmovdqu %xmm0, (%rdi)
+ vmovdqu %xmm1, 0x10(%rdi)
+ vmovdqu %xmm6, -0x20(%rdi, %rdx)
+ vmovdqu %xmm7, -0x10(%rdi, %rdx)
+ ret
+
+ .p2align 4
+L(less_32bytes):
+ vmovdqu (%rsi), %xmm0
+ vmovdqu -0x10(%rsi, %rdx), %xmm7
+ vmovdqu %xmm0, (%rdi)
+ vmovdqu %xmm7, -0x10(%rdi, %rdx)
+ ret
+
+ .p2align 4
+L(less_16bytes):
+ cmp $8, %dl
+ jb L(less_8bytes)
+ movq -0x08(%rsi, %rdx), %rcx
+ movq (%rsi), %rsi
+ movq %rsi, (%rdi)
+ movq %rcx, -0x08(%rdi, %rdx)
+ ret
+
+ .p2align 4
+L(less_8bytes):
+ cmp $4, %dl
+ jb L(less_4bytes)
+ mov -0x04(%rsi, %rdx), %ecx
+ mov (%rsi), %esi
+ mov %esi, (%rdi)
+ mov %ecx, -0x04(%rdi, %rdx)
+ ret
+
+L(less_4bytes):
+ cmp $1, %dl
+ jbe L(less_2bytes)
+ mov -0x02(%rsi, %rdx), %cx
+ mov (%rsi), %si
+ mov %si, (%rdi)
+ mov %cx, -0x02(%rdi, %rdx)
+ ret
+
+L(less_2bytes):
+ jb L(less_0bytes)
+ mov (%rsi), %cl
+ mov %cl, (%rdi)
+L(less_0bytes):
+ ret
+
+ .p2align 4
+L(256bytesormore):
+#ifdef USE_AS_MEMMOVE
+ mov %rdi, %rcx
+ sub %rsi, %rcx
+ cmp %rdx, %rcx
+ jc L(copy_backward)
+#endif
+ cmp $2048, %rdx
+ jae L(gobble_data_movsb)
+ mov %rax, %r8
+ lea (%rsi, %rdx), %rcx
+ mov %rdi, %r10
+ vmovdqu -0x80(%rcx), %xmm5
+ vmovdqu -0x70(%rcx), %xmm6
+ mov $0x80, %rax
+ and $-32, %rdi
+ add $32, %rdi
+ vmovdqu -0x60(%rcx), %xmm7
+ vmovdqu -0x50(%rcx), %xmm8
+ mov %rdi, %r11
+ sub %r10, %r11
+ vmovdqu -0x40(%rcx), %xmm9
+ vmovdqu -0x30(%rcx), %xmm10
+ sub %r11, %rdx
+ vmovdqu -0x20(%rcx), %xmm11
+ vmovdqu -0x10(%rcx), %xmm12
+ vmovdqu (%rsi), %ymm4
+ add %r11, %rsi
+ sub %eax, %edx
+L(goble_128_loop):
+ vmovdqu (%rsi), %ymm0
+ vmovdqu 0x20(%rsi), %ymm1
+ vmovdqu 0x40(%rsi), %ymm2
+ vmovdqu 0x60(%rsi), %ymm3
+ add %rax, %rsi
+ vmovdqa %ymm0, (%rdi)
+ vmovdqa %ymm1, 0x20(%rdi)
+ vmovdqa %ymm2, 0x40(%rdi)
+ vmovdqa %ymm3, 0x60(%rdi)
+ add %rax, %rdi
+ sub %eax, %edx
+ jae L(goble_128_loop)
+ add %eax, %edx
+ add %rdi, %rdx
+ vmovdqu %ymm4, (%r10)
+ vzeroupper
+ vmovdqu %xmm5, -0x80(%rdx)
+ vmovdqu %xmm6, -0x70(%rdx)
+ vmovdqu %xmm7, -0x60(%rdx)
+ vmovdqu %xmm8, -0x50(%rdx)
+ vmovdqu %xmm9, -0x40(%rdx)
+ vmovdqu %xmm10, -0x30(%rdx)
+ vmovdqu %xmm11, -0x20(%rdx)
+ vmovdqu %xmm12, -0x10(%rdx)
+ mov %r8, %rax
+ ret
+
+ .p2align 4
+L(gobble_data_movsb):
+#ifdef SHARED_CACHE_SIZE_HALF
+ mov $SHARED_CACHE_SIZE_HALF, %rcx
+#else
+ mov __x86_shared_cache_size_half(%rip), %rcx
+#endif
+ shl $3, %rcx
+ cmp %rcx, %rdx
+ jae L(gobble_big_data_fwd)
+ mov %rdx, %rcx
+ mov %rdx, %rcx
+ rep movsb
+ ret
+
+ .p2align 4
+L(gobble_big_data_fwd):
+ lea (%rsi, %rdx), %rcx
+ vmovdqu (%rsi), %ymm4
+ vmovdqu -0x80(%rsi,%rdx), %xmm5
+ vmovdqu -0x70(%rcx), %xmm6
+ vmovdqu -0x60(%rcx), %xmm7
+ vmovdqu -0x50(%rcx), %xmm8
+ vmovdqu -0x40(%rcx), %xmm9
+ vmovdqu -0x30(%rcx), %xmm10
+ vmovdqu -0x20(%rcx), %xmm11
+ vmovdqu -0x10(%rcx), %xmm12
+ mov %rdi, %r8
+ and $-32, %rdi
+ add $32, %rdi
+ mov %rdi, %r10
+ sub %r8, %r10
+ sub %r10, %rdx
+ add %r10, %rsi
+ lea (%rdi, %rdx), %rcx
+ add $-0x80, %rdx
+L(gobble_mem_fwd_loop):
+ prefetchnta 0x1c0(%rsi)
+ prefetchnta 0x280(%rsi)
+ vmovdqu (%rsi), %ymm0
+ vmovdqu 0x20(%rsi), %ymm1
+ vmovdqu 0x40(%rsi), %ymm2
+ vmovdqu 0x60(%rsi), %ymm3
+ sub $-0x80, %rsi
+ vmovntdq %ymm0, (%rdi)
+ vmovntdq %ymm1, 0x20(%rdi)
+ vmovntdq %ymm2, 0x40(%rdi)
+ vmovntdq %ymm3, 0x60(%rdi)
+ sub $-0x80, %rdi
+ add $-0x80, %rdx
+ jb L(gobble_mem_fwd_loop)
+ sfence
+ vmovdqu %ymm4, (%r8)
+ vzeroupper
+ vmovdqu %xmm5, -0x80(%rcx)
+ vmovdqu %xmm6, -0x70(%rcx)
+ vmovdqu %xmm7, -0x60(%rcx)
+ vmovdqu %xmm8, -0x50(%rcx)
+ vmovdqu %xmm9, -0x40(%rcx)
+ vmovdqu %xmm10, -0x30(%rcx)
+ vmovdqu %xmm11, -0x20(%rcx)
+ vmovdqu %xmm12, -0x10(%rcx)
+ ret
+
+#ifdef USE_AS_MEMMOVE
+ .p2align 4
+L(copy_backward):
+#ifdef SHARED_CACHE_SIZE_HALF
+ mov $SHARED_CACHE_SIZE_HALF, %rcx
+#else
+ mov __x86_shared_cache_size_half(%rip), %rcx
+#endif
+ shl $3, %rcx
+ vmovdqu (%rsi), %xmm5
+ vmovdqu 0x10(%rsi), %xmm6
+ add %rdx, %rdi
+ vmovdqu 0x20(%rsi), %xmm7
+ vmovdqu 0x30(%rsi), %xmm8
+ lea -0x20(%rdi), %r10
+ mov %rdi, %r11
+ vmovdqu 0x40(%rsi), %xmm9
+ vmovdqu 0x50(%rsi), %xmm10
+ and $0x1f, %r11
+ vmovdqu 0x60(%rsi), %xmm11
+ vmovdqu 0x70(%rsi), %xmm12
+ xor %r11, %rdi
+ add %rdx, %rsi
+ vmovdqu -0x20(%rsi), %ymm4
+ sub %r11, %rsi
+ sub %r11, %rdx
+ cmp %rcx, %rdx
+ ja L(gobble_big_data_bwd)
+ add $-0x80, %rdx
+L(gobble_mem_bwd_llc):
+ vmovdqu -0x20(%rsi), %ymm0
+ vmovdqu -0x40(%rsi), %ymm1
+ vmovdqu -0x60(%rsi), %ymm2
+ vmovdqu -0x80(%rsi), %ymm3
+ lea -0x80(%rsi), %rsi
+ vmovdqa %ymm0, -0x20(%rdi)
+ vmovdqa %ymm1, -0x40(%rdi)
+ vmovdqa %ymm2, -0x60(%rdi)
+ vmovdqa %ymm3, -0x80(%rdi)
+ lea -0x80(%rdi), %rdi
+ add $-0x80, %rdx
+ jb L(gobble_mem_bwd_llc)
+ vmovdqu %ymm4, (%r10)
+ vzeroupper
+ vmovdqu %xmm5, (%rax)
+ vmovdqu %xmm6, 0x10(%rax)
+ vmovdqu %xmm7, 0x20(%rax)
+ vmovdqu %xmm8, 0x30(%rax)
+ vmovdqu %xmm9, 0x40(%rax)
+ vmovdqu %xmm10, 0x50(%rax)
+ vmovdqu %xmm11, 0x60(%rax)
+ vmovdqu %xmm12, 0x70(%rax)
+ ret
+
+ .p2align 4
+L(gobble_big_data_bwd):
+ add $-0x80, %rdx
+L(gobble_mem_bwd_loop):
+ prefetchnta -0x1c0(%rsi)
+ prefetchnta -0x280(%rsi)
+ vmovdqu -0x20(%rsi), %ymm0
+ vmovdqu -0x40(%rsi), %ymm1
+ vmovdqu -0x60(%rsi), %ymm2
+ vmovdqu -0x80(%rsi), %ymm3
+ lea -0x80(%rsi), %rsi
+ vmovntdq %ymm0, -0x20(%rdi)
+ vmovntdq %ymm1, -0x40(%rdi)
+ vmovntdq %ymm2, -0x60(%rdi)
+ vmovntdq %ymm3, -0x80(%rdi)
+ lea -0x80(%rdi), %rdi
+ add $-0x80, %rdx
+ jb L(gobble_mem_bwd_loop)
+ sfence
+ vmovdqu %ymm4, (%r10)
+ vzeroupper
+ vmovdqu %xmm5, (%rax)
+ vmovdqu %xmm6, 0x10(%rax)
+ vmovdqu %xmm7, 0x20(%rax)
+ vmovdqu %xmm8, 0x30(%rax)
+ vmovdqu %xmm9, 0x40(%rax)
+ vmovdqu %xmm10, 0x50(%rax)
+ vmovdqu %xmm11, 0x60(%rax)
+ vmovdqu %xmm12, 0x70(%rax)
+ ret
+#endif
+END (MEMCPY)
+#endif
projects / external / glibc.git / commitdiff