/* memcpy with SSSE3 and REP string. Copyright (C) 2010-2019 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 . */ #include #if IS_IN (libc) \ && (defined SHARED \ || defined USE_AS_MEMMOVE \ || !defined USE_MULTIARCH) #include "asm-syntax.h" #ifndef MEMCPY # define MEMCPY __memcpy_ssse3_rep # define MEMCPY_CHK __memcpy_chk_ssse3_rep #endif #ifdef USE_AS_BCOPY # define SRC PARMS # define DEST SRC+4 # define LEN DEST+4 #else # define DEST PARMS # define SRC DEST+4 # define LEN SRC+4 #endif #define CFI_PUSH(REG) \ cfi_adjust_cfa_offset (4); \ cfi_rel_offset (REG, 0) #define CFI_POP(REG) \ cfi_adjust_cfa_offset (-4); \ cfi_restore (REG) #define PUSH(REG) pushl REG; CFI_PUSH (REG) #define POP(REG) popl REG; CFI_POP (REG) #ifdef PIC # define PARMS 8 /* Preserve EBX. */ # define ENTRANCE PUSH (%ebx); # define RETURN_END POP (%ebx); ret # define RETURN RETURN_END; CFI_PUSH (%ebx) # define JMPTBL(I, B) I - B /* Load an entry in a jump table into EBX and branch to it. TABLE is a jump table with relative offsets. INDEX is a register contains the index into the jump table. SCALE is the scale of INDEX. */ # define BRANCH_TO_JMPTBL_ENTRY(TABLE, INDEX, SCALE) \ /* We first load PC into EBX. */ \ SETUP_PIC_REG(bx); \ /* Get the address of the jump table. */ \ addl $(TABLE - .), %ebx; \ /* Get the entry and convert the relative offset to the \ absolute address. */ \ addl (%ebx,INDEX,SCALE), %ebx; \ /* We loaded the jump table. Go. */ \ _CET_NOTRACK jmp *%ebx # define BRANCH_TO_JMPTBL_ENTRY_VALUE(TABLE) \ addl $(TABLE - .), %ebx # define BRANCH_TO_JMPTBL_ENTRY_TAIL(TABLE, INDEX, SCALE) \ addl (%ebx,INDEX,SCALE), %ebx; \ /* We loaded the jump table. Go. */ \ _CET_NOTRACK jmp *%ebx #else # define PARMS 4 # define ENTRANCE # define RETURN_END ret # define RETURN RETURN_END # define JMPTBL(I, B) I /* Branch to an entry in a jump table. TABLE is a jump table with absolute offsets. INDEX is a register contains the index into the jump table. SCALE is the scale of INDEX. */ # define BRANCH_TO_JMPTBL_ENTRY(TABLE, INDEX, SCALE) \ _CET_NOTRACK jmp *TABLE(,INDEX,SCALE) # define BRANCH_TO_JMPTBL_ENTRY_VALUE(TABLE) # define BRANCH_TO_JMPTBL_ENTRY_TAIL(TABLE, INDEX, SCALE) \ _CET_NOTRACK jmp *TABLE(,INDEX,SCALE) #endif .section .text.ssse3,"ax",@progbits #if !defined USE_AS_BCOPY && defined SHARED ENTRY (MEMCPY_CHK) movl 12(%esp), %eax cmpl %eax, 16(%esp) jb HIDDEN_JUMPTARGET (__chk_fail) END (MEMCPY_CHK) #endif ENTRY (MEMCPY) ENTRANCE movl LEN(%esp), %ecx movl SRC(%esp), %eax movl DEST(%esp), %edx #ifdef USE_AS_MEMMOVE cmp %eax, %edx jb L(copy_forward) je L(fwd_write_0bytes) cmp $48, %ecx jb L(bk_write_less48bytes) add %ecx, %eax cmp %eax, %edx movl SRC(%esp), %eax jb L(copy_backward) L(copy_forward): #endif cmp $48, %ecx jae L(48bytesormore) L(fwd_write_less32bytes): #ifndef USE_AS_MEMMOVE cmp %dl, %al jb L(bk_write) #endif add %ecx, %edx add %ecx, %eax BRANCH_TO_JMPTBL_ENTRY (L(table_48bytes_fwd), %ecx, 4) #ifndef USE_AS_MEMMOVE L(bk_write): BRANCH_TO_JMPTBL_ENTRY (L(table_48_bytes_bwd), %ecx, 4) #endif ALIGN (4) /* ECX > 32 and EDX is 4 byte aligned. */ L(48bytesormore): movdqu (%eax), %xmm0 PUSH (%edi) movl %edx, %edi and $-16, %edx PUSH (%esi) cfi_remember_state add $16, %edx movl %edi, %esi sub %edx, %edi add %edi, %ecx sub %edi, %eax #ifdef SHARED_CACHE_SIZE_HALF cmp $SHARED_CACHE_SIZE_HALF, %ecx #else # ifdef PIC SETUP_PIC_REG(bx) add $_GLOBAL_OFFSET_TABLE_, %ebx cmp __x86_shared_cache_size_half@GOTOFF(%ebx), %ecx # else cmp __x86_shared_cache_size_half, %ecx # endif #endif mov %eax, %edi jae L(large_page) and $0xf, %edi jz L(shl_0) BRANCH_TO_JMPTBL_ENTRY (L(shl_table), %edi, 4) ALIGN (4) L(shl_0): movdqu %xmm0, (%esi) xor %edi, %edi cmp $127, %ecx ja L(shl_0_gobble) lea -32(%ecx), %ecx L(shl_0_loop): movdqa (%eax, %edi), %xmm0 movdqa 16(%eax, %edi), %xmm1 sub $32, %ecx movdqa %xmm0, (%edx, %edi) movdqa %xmm1, 16(%edx, %edi) lea 32(%edi), %edi jb L(shl_0_end) movdqa (%eax, %edi), %xmm0 movdqa 16(%eax, %edi), %xmm1 sub $32, %ecx movdqa %xmm0, (%edx, %edi) movdqa %xmm1, 16(%edx, %edi) lea 32(%edi), %edi jb L(shl_0_end) movdqa (%eax, %edi), %xmm0 movdqa 16(%eax, %edi), %xmm1 sub $32, %ecx movdqa %xmm0, (%edx, %edi) movdqa %xmm1, 16(%edx, %edi) lea 32(%edi), %edi jb L(shl_0_end) movdqa (%eax, %edi), %xmm0 movdqa 16(%eax, %edi), %xmm1 sub $32, %ecx movdqa %xmm0, (%edx, %edi) movdqa %xmm1, 16(%edx, %edi) lea 32(%edi), %edi L(shl_0_end): lea 32(%ecx), %ecx add %ecx, %edi add %edi, %edx add %edi, %eax POP (%esi) POP (%edi) BRANCH_TO_JMPTBL_ENTRY (L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state L(shl_0_gobble): #ifdef DATA_CACHE_SIZE_HALF cmp $DATA_CACHE_SIZE_HALF, %ecx #else # ifdef PIC SETUP_PIC_REG(bx) add $_GLOBAL_OFFSET_TABLE_, %ebx mov __x86_data_cache_size_half@GOTOFF(%ebx), %edi # else mov __x86_data_cache_size_half, %edi # endif #endif mov %edi, %esi shr $3, %esi sub %esi, %edi cmp %edi, %ecx jae L(shl_0_gobble_mem_start) sub $128, %ecx ALIGN (4) L(shl_0_gobble_cache_loop): movdqa (%eax), %xmm0 movaps 0x10(%eax), %xmm1 movaps 0x20(%eax), %xmm2 movaps 0x30(%eax), %xmm3 movaps 0x40(%eax), %xmm4 movaps 0x50(%eax), %xmm5 movaps 0x60(%eax), %xmm6 movaps 0x70(%eax), %xmm7 lea 0x80(%eax), %eax sub $128, %ecx movdqa %xmm0, (%edx) movaps %xmm1, 0x10(%edx) movaps %xmm2, 0x20(%edx) movaps %xmm3, 0x30(%edx) movaps %xmm4, 0x40(%edx) movaps %xmm5, 0x50(%edx) movaps %xmm6, 0x60(%edx) movaps %xmm7, 0x70(%edx) lea 0x80(%edx), %edx jae L(shl_0_gobble_cache_loop) add $0x80, %ecx cmp $0x40, %ecx jb L(shl_0_cache_less_64bytes) movdqa (%eax), %xmm0 sub $0x40, %ecx movdqa 0x10(%eax), %xmm1 movdqa %xmm0, (%edx) movdqa %xmm1, 0x10(%edx) movdqa 0x20(%eax), %xmm0 movdqa 0x30(%eax), %xmm1 add $0x40, %eax movdqa %xmm0, 0x20(%edx) movdqa %xmm1, 0x30(%edx) add $0x40, %edx L(shl_0_cache_less_64bytes): cmp $0x20, %ecx jb L(shl_0_cache_less_32bytes) movdqa (%eax), %xmm0 sub $0x20, %ecx movdqa 0x10(%eax), %xmm1 add $0x20, %eax movdqa %xmm0, (%edx) movdqa %xmm1, 0x10(%edx) add $0x20, %edx L(shl_0_cache_less_32bytes): cmp $0x10, %ecx jb L(shl_0_cache_less_16bytes) sub $0x10, %ecx movdqa (%eax), %xmm0 add $0x10, %eax movdqa %xmm0, (%edx) add $0x10, %edx L(shl_0_cache_less_16bytes): add %ecx, %edx add %ecx, %eax POP (%esi) POP (%edi) BRANCH_TO_JMPTBL_ENTRY (L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_0_gobble_mem_start): cmp %al, %dl je L(copy_page_by_rep) sub $128, %ecx L(shl_0_gobble_mem_loop): prefetchnta 0x1c0(%eax) prefetchnta 0x280(%eax) prefetchnta 0x1c0(%edx) prefetchnta 0x280(%edx) movdqa (%eax), %xmm0 movaps 0x10(%eax), %xmm1 movaps 0x20(%eax), %xmm2 movaps 0x30(%eax), %xmm3 movaps 0x40(%eax), %xmm4 movaps 0x50(%eax), %xmm5 movaps 0x60(%eax), %xmm6 movaps 0x70(%eax), %xmm7 lea 0x80(%eax), %eax sub $0x80, %ecx movdqa %xmm0, (%edx) movaps %xmm1, 0x10(%edx) movaps %xmm2, 0x20(%edx) movaps %xmm3, 0x30(%edx) movaps %xmm4, 0x40(%edx) movaps %xmm5, 0x50(%edx) movaps %xmm6, 0x60(%edx) movaps %xmm7, 0x70(%edx) lea 0x80(%edx), %edx jae L(shl_0_gobble_mem_loop) add $0x80, %ecx cmp $0x40, %ecx jb L(shl_0_mem_less_64bytes) movdqa (%eax), %xmm0 sub $0x40, %ecx movdqa 0x10(%eax), %xmm1 movdqa %xmm0, (%edx) movdqa %xmm1, 0x10(%edx) movdqa 0x20(%eax), %xmm0 movdqa 0x30(%eax), %xmm1 add $0x40, %eax movdqa %xmm0, 0x20(%edx) movdqa %xmm1, 0x30(%edx) add $0x40, %edx L(shl_0_mem_less_64bytes): cmp $0x20, %ecx jb L(shl_0_mem_less_32bytes) movdqa (%eax), %xmm0 sub $0x20, %ecx movdqa 0x10(%eax), %xmm1 add $0x20, %eax movdqa %xmm0, (%edx) movdqa %xmm1, 0x10(%edx) add $0x20, %edx L(shl_0_mem_less_32bytes): cmp $0x10, %ecx jb L(shl_0_mem_less_16bytes) sub $0x10, %ecx movdqa (%eax), %xmm0 add $0x10, %eax movdqa %xmm0, (%edx) add $0x10, %edx L(shl_0_mem_less_16bytes): add %ecx, %edx add %ecx, %eax POP (%esi) POP (%edi) BRANCH_TO_JMPTBL_ENTRY (L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_1): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $1, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_1_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $1, %xmm2, %xmm3 palignr $1, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_1_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $1, %xmm2, %xmm3 palignr $1, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_1_loop) L(shl_1_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 1(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_2): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $2, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_2_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $2, %xmm2, %xmm3 palignr $2, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_2_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $2, %xmm2, %xmm3 palignr $2, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_2_loop) L(shl_2_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 2(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_3): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $3, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_3_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $3, %xmm2, %xmm3 palignr $3, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_3_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $3, %xmm2, %xmm3 palignr $3, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_3_loop) L(shl_3_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 3(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_4): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $4, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_4_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $4, %xmm2, %xmm3 palignr $4, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_4_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $4, %xmm2, %xmm3 palignr $4, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_4_loop) L(shl_4_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 4(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_5): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $5, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_5_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $5, %xmm2, %xmm3 palignr $5, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_5_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $5, %xmm2, %xmm3 palignr $5, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_5_loop) L(shl_5_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 5(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_6): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $6, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_6_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $6, %xmm2, %xmm3 palignr $6, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_6_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $6, %xmm2, %xmm3 palignr $6, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_6_loop) L(shl_6_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 6(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_7): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $7, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_7_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $7, %xmm2, %xmm3 palignr $7, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_7_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $7, %xmm2, %xmm3 palignr $7, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_7_loop) L(shl_7_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 7(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_8): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $8, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_8_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $8, %xmm2, %xmm3 palignr $8, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_8_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $8, %xmm2, %xmm3 palignr $8, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_8_loop) L(shl_8_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 8(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_9): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $9, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_9_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $9, %xmm2, %xmm3 palignr $9, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_9_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $9, %xmm2, %xmm3 palignr $9, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_9_loop) L(shl_9_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 9(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_10): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $10, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_10_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $10, %xmm2, %xmm3 palignr $10, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_10_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $10, %xmm2, %xmm3 palignr $10, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_10_loop) L(shl_10_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 10(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_11): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $11, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_11_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $11, %xmm2, %xmm3 palignr $11, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_11_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $11, %xmm2, %xmm3 palignr $11, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_11_loop) L(shl_11_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 11(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_12): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $12, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_12_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $12, %xmm2, %xmm3 palignr $12, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_12_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $12, %xmm2, %xmm3 palignr $12, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_12_loop) L(shl_12_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 12(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_13): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $13, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_13_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $13, %xmm2, %xmm3 palignr $13, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_13_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $13, %xmm2, %xmm3 palignr $13, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_13_loop) L(shl_13_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 13(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_14): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $14, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_14_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $14, %xmm2, %xmm3 palignr $14, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_14_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $14, %xmm2, %xmm3 palignr $14, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_14_loop) L(shl_14_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 14(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(shl_15): BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd)) sub $15, %eax movaps (%eax), %xmm1 xor %edi, %edi sub $32, %ecx movdqu %xmm0, (%esi) POP (%esi) L(shl_15_loop): movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm4 palignr $15, %xmm2, %xmm3 palignr $15, %xmm1, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jb L(shl_15_end) movdqa 16(%eax, %edi), %xmm2 sub $32, %ecx movdqa 32(%eax, %edi), %xmm3 movdqa %xmm3, %xmm1 palignr $15, %xmm2, %xmm3 palignr $15, %xmm4, %xmm2 lea 32(%edi), %edi movdqa %xmm2, -32(%edx, %edi) movdqa %xmm3, -16(%edx, %edi) jae L(shl_15_loop) L(shl_15_end): add $32, %ecx add %ecx, %edi add %edi, %edx lea 15(%edi, %eax), %eax POP (%edi) BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4) ALIGN (4) L(fwd_write_44bytes): movl -44(%eax), %ecx movl %ecx, -44(%edx) L(fwd_write_40bytes): movl -40(%eax), %ecx movl %ecx, -40(%edx) L(fwd_write_36bytes): movl -36(%eax), %ecx movl %ecx, -36(%edx) L(fwd_write_32bytes): movl -32(%eax), %ecx movl %ecx, -32(%edx) L(fwd_write_28bytes): movl -28(%eax), %ecx movl %ecx, -28(%edx) L(fwd_write_24bytes): movl -24(%eax), %ecx movl %ecx, -24(%edx) L(fwd_write_20bytes): movl -20(%eax), %ecx movl %ecx, -20(%edx) L(fwd_write_16bytes): movl -16(%eax), %ecx movl %ecx, -16(%edx) L(fwd_write_12bytes): movl -12(%eax), %ecx movl %ecx, -12(%edx) L(fwd_write_8bytes): movl -8(%eax), %ecx movl %ecx, -8(%edx) L(fwd_write_4bytes): movl -4(%eax), %ecx movl %ecx, -4(%edx) L(fwd_write_0bytes): #ifndef USE_AS_BCOPY # ifdef USE_AS_MEMPCPY movl %edx, %eax # else movl DEST(%esp), %eax # endif #endif RETURN ALIGN (4) L(fwd_write_5bytes): movl -5(%eax), %ecx movl -4(%eax), %eax movl %ecx, -5(%edx) movl %eax, -4(%edx) #ifndef USE_AS_BCOPY # ifdef USE_AS_MEMPCPY movl %edx, %eax # else movl DEST(%esp), %eax # endif #endif RETURN ALIGN (4) L(fwd_write_45bytes): movl -45(%eax), %ecx movl %ecx, -45(%edx) L(fwd_write_41bytes): movl -41(%eax), %ecx movl %ecx, -41(%edx) L(fwd_write_37bytes): movl -37(%eax), %ecx movl %ecx, -37(%edx) L(fwd_write_33bytes): movl -33(%eax), %ecx movl %ecx, -33(%edx) L(fwd_write_29bytes): movl -29(%eax), %ecx movl %ecx, -29(%edx) L(fwd_write_25bytes): movl -25(%eax), %ecx movl %ecx, -25(%edx) L(fwd_write_21bytes): movl -21(%eax), %ecx movl %ecx, -21(%edx) L(fwd_write_17bytes): movl -17(%eax), %ecx movl %ecx, -17(%edx) L(fwd_write_13bytes): movl -13(%eax), %ecx movl %ecx, -13(%edx) L(fwd_write_9bytes): movl -9(%eax), %ecx movl %ecx, -9(%edx) movl -5(%eax), %ecx movl %ecx, -5(%edx) L(fwd_write_1bytes): movzbl -1(%eax), %ecx movb %cl, -1(%edx) #ifndef USE_AS_BCOPY # ifdef USE_AS_MEMPCPY movl %edx, %eax # else movl DEST(%esp), %eax # endif #endif RETURN ALIGN (4) L(fwd_write_46bytes): movl -46(%eax), %ecx movl %ecx, -46(%edx) L(fwd_write_42bytes): movl -42(%eax), %ecx movl %ecx, -42(%edx) L(fwd_write_38bytes): movl -38(%eax), %ecx movl %ecx, -38(%edx) L(fwd_write_34bytes): movl -34(%eax), %ecx movl %ecx, -34(%edx) L(fwd_write_30bytes): movl -30(%eax), %ecx movl %ecx, -30(%edx) L(fwd_write_26bytes): movl -26(%eax), %ecx movl %ecx, -26(%edx) L(fwd_write_22bytes): movl -22(%eax), %ecx movl %ecx, -22(%edx) L(fwd_write_18bytes): movl -18(%eax), %ecx movl %ecx, -18(%edx) L(fwd_write_14bytes): movl -14(%eax), %ecx movl %ecx, -14(%edx) L(fwd_write_10bytes): movl -10(%eax), %ecx movl %ecx, -10(%edx) L(fwd_write_6bytes): movl -6(%eax), %ecx movl %ecx, -6(%edx) L(fwd_write_2bytes): movzwl -2(%eax), %ecx movw %cx, -2(%edx) #ifndef USE_AS_BCOPY # ifdef USE_AS_MEMPCPY movl %edx, %eax # else movl DEST(%esp), %eax # endif #endif RETURN ALIGN (4) L(fwd_write_47bytes): movl -47(%eax), %ecx movl %ecx, -47(%edx) L(fwd_write_43bytes): movl -43(%eax), %ecx movl %ecx, -43(%edx) L(fwd_write_39bytes): movl -39(%eax), %ecx movl %ecx, -39(%edx) L(fwd_write_35bytes): movl -35(%eax), %ecx movl %ecx, -35(%edx) L(fwd_write_31bytes): movl -31(%eax), %ecx movl %ecx, -31(%edx) L(fwd_write_27bytes): movl -27(%eax), %ecx movl %ecx, -27(%edx) L(fwd_write_23bytes): movl -23(%eax), %ecx movl %ecx, -23(%edx) L(fwd_write_19bytes): movl -19(%eax), %ecx movl %ecx, -19(%edx) L(fwd_write_15bytes): movl -15(%eax), %ecx movl %ecx, -15(%edx) L(fwd_write_11bytes): movl -11(%eax), %ecx movl %ecx, -11(%edx) L(fwd_write_7bytes): movl -7(%eax), %ecx movl %ecx, -7(%edx) L(fwd_write_3bytes): movzwl -3(%eax), %ecx movzbl -1(%eax), %eax movw %cx, -3(%edx) movb %al, -1(%edx) #ifndef USE_AS_BCOPY # ifdef USE_AS_MEMPCPY movl %edx, %eax # else movl DEST(%esp), %eax # endif #endif RETURN_END cfi_restore_state cfi_remember_state ALIGN (4) L(large_page): movdqu (%eax), %xmm1 movdqu %xmm0, (%esi) movntdq %xmm1, (%edx) add $0x10, %eax add $0x10, %edx sub $0x10, %ecx cmp %al, %dl je L(copy_page_by_rep) L(large_page_loop_init): POP (%esi) sub $0x80, %ecx POP (%edi) L(large_page_loop): prefetchnta 0x1c0(%eax) prefetchnta 0x280(%eax) movdqu (%eax), %xmm0 movdqu 0x10(%eax), %xmm1 movdqu 0x20(%eax), %xmm2 movdqu 0x30(%eax), %xmm3 movdqu 0x40(%eax), %xmm4 movdqu 0x50(%eax), %xmm5 movdqu 0x60(%eax), %xmm6 movdqu 0x70(%eax), %xmm7 lea 0x80(%eax), %eax lfence sub $0x80, %ecx movntdq %xmm0, (%edx) movntdq %xmm1, 0x10(%edx) movntdq %xmm2, 0x20(%edx) movntdq %xmm3, 0x30(%edx) movntdq %xmm4, 0x40(%edx) movntdq %xmm5, 0x50(%edx) movntdq %xmm6, 0x60(%edx) movntdq %xmm7, 0x70(%edx) lea 0x80(%edx), %edx jae L(large_page_loop) add $0x80, %ecx cmp $0x40, %ecx jb L(large_page_less_64bytes) movdqu (%eax), %xmm0 movdqu 0x10(%eax), %xmm1 movdqu 0x20(%eax), %xmm2 movdqu 0x30(%eax), %xmm3 lea 0x40(%eax), %eax movntdq %xmm0, (%edx) movntdq %xmm1, 0x10(%edx) movntdq %xmm2, 0x20(%edx) movntdq %xmm3, 0x30(%edx) lea 0x40(%edx), %edx sub $0x40, %ecx L(large_page_less_64bytes): cmp $32, %ecx jb L(large_page_less_32bytes) movdqu (%eax), %xmm0 movdqu 0x10(%eax), %xmm1 lea 0x20(%eax), %eax movntdq %xmm0, (%edx) movntdq %xmm1, 0x10(%edx) lea 0x20(%edx), %edx sub $0x20, %ecx L(large_page_less_32bytes): add %ecx, %edx add %ecx, %eax sfence BRANCH_TO_JMPTBL_ENTRY (L(table_48bytes_fwd), %ecx, 4) cfi_restore_state cfi_remember_state ALIGN (4) L(copy_page_by_rep): mov %eax, %esi mov %edx, %edi mov %ecx, %edx shr $2, %ecx and $3, %edx rep movsl jz L(copy_page_by_rep_exit) cmp $2, %edx jb L(copy_page_by_rep_left_1) movzwl (%esi), %eax movw %ax, (%edi) add $2, %esi add $2, %edi sub $2, %edx jz L(copy_page_by_rep_exit) L(copy_page_by_rep_left_1): movzbl (%esi), %eax movb %al, (%edi) L(copy_page_by_rep_exit): POP (%esi) POP (%edi) #ifndef USE_AS_BCOPY movl DEST(%esp), %eax # ifdef USE_AS_MEMPCPY movl LEN(%esp), %ecx add %ecx, %eax # endif #endif RETURN ALIGN (4) L(bk_write_44bytes): movl 40(%eax), %ecx movl %ecx, 40(%edx) L(bk_write_40bytes): movl 36(%eax), %ecx movl %ecx, 36(%edx) L(bk_write_36bytes): movl 32(%eax), %ecx movl %ecx, 32(%edx) L(bk_write_32bytes): movl 28(%eax), %ecx movl %ecx, 28(%edx) L(bk_write_28bytes): movl 24(%eax), %ecx movl %ecx, 24(%edx) L(bk_write_24bytes): movl 20(%eax), %ecx movl %ecx, 20(%edx) L(bk_write_20bytes): movl 16(%eax), %ecx movl %ecx, 16(%edx) L(bk_write_16bytes): movl 12(%eax), %ecx movl %ecx, 12(%edx) L(bk_write_12bytes): movl 8(%eax), %ecx movl %ecx, 8(%edx) L(bk_write_8bytes): movl 4(%eax), %ecx movl %ecx, 4(%edx) L(bk_write_4bytes): movl (%eax), %ecx movl %ecx, (%edx) L(bk_write_0bytes): #ifndef USE_AS_BCOPY movl DEST(%esp), %eax # ifdef USE_AS_MEMPCPY movl LEN(%esp), %ecx add %ecx, %eax # endif #endif RETURN ALIGN (4) L(bk_write_45bytes): movl 41(%eax), %ecx movl %ecx, 41(%edx) L(bk_write_41bytes): movl 37(%eax), %ecx movl %ecx, 37(%edx) L(bk_write_37bytes): movl 33(%eax), %ecx movl %ecx, 33(%edx) L(bk_write_33bytes): movl 29(%eax), %ecx movl %ecx, 29(%edx) L(bk_write_29bytes): movl 25(%eax), %ecx movl %ecx, 25(%edx) L(bk_write_25bytes): movl 21(%eax), %ecx movl %ecx, 21(%edx) L(bk_write_21bytes): movl 17(%eax), %ecx movl %ecx, 17(%edx) L(bk_write_17bytes): movl 13(%eax), %ecx movl %ecx, 13(%edx) L(bk_write_13bytes): movl 9(%eax), %ecx movl %ecx, 9(%edx) L(bk_write_9bytes): movl 5(%eax), %ecx movl %ecx, 5(%edx) L(bk_write_5bytes): movl 1(%eax), %ecx movl %ecx, 1(%edx) L(bk_write_1bytes): movzbl (%eax), %ecx movb %cl, (%edx) #ifndef USE_AS_BCOPY movl DEST(%esp), %eax # ifdef USE_AS_MEMPCPY movl LEN(%esp), %ecx add %ecx, %eax # endif #endif RETURN ALIGN (4) L(bk_write_46bytes): movl 42(%eax), %ecx movl %ecx, 42(%edx) L(bk_write_42bytes): movl 38(%eax), %ecx movl %ecx, 38(%edx) L(bk_write_38bytes): movl 34(%eax), %ecx movl %ecx, 34(%edx) L(bk_write_34bytes): movl 30(%eax), %ecx movl %ecx, 30(%edx) L(bk_write_30bytes): movl 26(%eax), %ecx movl %ecx, 26(%edx) L(bk_write_26bytes): movl 22(%eax), %ecx movl %ecx, 22(%edx) L(bk_write_22bytes): movl 18(%eax), %ecx movl %ecx, 18(%edx) L(bk_write_18bytes): movl 14(%eax), %ecx movl %ecx, 14(%edx) L(bk_write_14bytes): movl 10(%eax), %ecx movl %ecx, 10(%edx) L(bk_write_10bytes): movl 6(%eax), %ecx movl %ecx, 6(%edx) L(bk_write_6bytes): movl 2(%eax), %ecx movl %ecx, 2(%edx) L(bk_write_2bytes): movzwl (%eax), %ecx movw %cx, (%edx) #ifndef USE_AS_BCOPY movl DEST(%esp), %eax # ifdef USE_AS_MEMPCPY movl LEN(%esp), %ecx add %ecx, %eax # endif #endif RETURN ALIGN (4) L(bk_write_47bytes): movl 43(%eax), %ecx movl %ecx, 43(%edx) L(bk_write_43bytes): movl 39(%eax), %ecx movl %ecx, 39(%edx) L(bk_write_39bytes): movl 35(%eax), %ecx movl %ecx, 35(%edx) L(bk_write_35bytes): movl 31(%eax), %ecx movl %ecx, 31(%edx) L(bk_write_31bytes): movl 27(%eax), %ecx movl %ecx, 27(%edx) L(bk_write_27bytes): movl 23(%eax), %ecx movl %ecx, 23(%edx) L(bk_write_23bytes): movl 19(%eax), %ecx movl %ecx, 19(%edx) L(bk_write_19bytes): movl 15(%eax), %ecx movl %ecx, 15(%edx) L(bk_write_15bytes): movl 11(%eax), %ecx movl %ecx, 11(%edx) L(bk_write_11bytes): movl 7(%eax), %ecx movl %ecx, 7(%edx) L(bk_write_7bytes): movl 3(%eax), %ecx movl %ecx, 3(%edx) L(bk_write_3bytes): movzwl 1(%eax), %ecx movw %cx, 1(%edx) movzbl (%eax), %eax movb %al, (%edx) #ifndef USE_AS_BCOPY movl DEST(%esp), %eax # ifdef USE_AS_MEMPCPY movl LEN(%esp), %ecx add %ecx, %eax # endif #endif RETURN_END .pushsection .rodata.ssse3,"a",@progbits ALIGN (2) L(table_48bytes_fwd): .int JMPTBL (L(fwd_write_0bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_1bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_2bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_3bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_4bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_5bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_6bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_7bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_8bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_9bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_10bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_11bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_12bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_13bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_14bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_15bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_16bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_17bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_18bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_19bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_20bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_21bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_22bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_23bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_24bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_25bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_26bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_27bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_28bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_29bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_30bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_31bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_32bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_33bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_34bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_35bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_36bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_37bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_38bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_39bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_40bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_41bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_42bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_43bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_44bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_45bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_46bytes), L(table_48bytes_fwd)) .int JMPTBL (L(fwd_write_47bytes), L(table_48bytes_fwd)) ALIGN (2) L(shl_table): .int JMPTBL (L(shl_0), L(shl_table)) .int JMPTBL (L(shl_1), L(shl_table)) .int JMPTBL (L(shl_2), L(shl_table)) .int JMPTBL (L(shl_3), L(shl_table)) .int JMPTBL (L(shl_4), L(shl_table)) .int JMPTBL (L(shl_5), L(shl_table)) .int JMPTBL (L(shl_6), L(shl_table)) .int JMPTBL (L(shl_7), L(shl_table)) .int JMPTBL (L(shl_8), L(shl_table)) .int JMPTBL (L(shl_9), L(shl_table)) .int JMPTBL (L(shl_10), L(shl_table)) .int JMPTBL (L(shl_11), L(shl_table)) .int JMPTBL (L(shl_12), L(shl_table)) .int JMPTBL (L(shl_13), L(shl_table)) .int JMPTBL (L(shl_14), L(shl_table)) .int JMPTBL (L(shl_15), L(shl_table)) ALIGN (2) L(table_48_bytes_bwd): .int JMPTBL (L(bk_write_0bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_1bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_2bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_3bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_4bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_5bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_6bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_7bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_8bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_9bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_10bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_11bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_12bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_13bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_14bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_15bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_16bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_17bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_18bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_19bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_20bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_21bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_22bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_23bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_24bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_25bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_26bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_27bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_28bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_29bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_30bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_31bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_32bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_33bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_34bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_35bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_36bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_37bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_38bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_39bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_40bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_41bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_42bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_43bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_44bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_45bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_46bytes), L(table_48_bytes_bwd)) .int JMPTBL (L(bk_write_47bytes), L(table_48_bytes_bwd)) .popsection #ifdef USE_AS_MEMMOVE ALIGN (4) L(copy_backward): PUSH (%esi) movl %eax, %esi add %ecx, %edx add %ecx, %esi testl $0x3, %edx jnz L(bk_align) L(bk_aligned_4): cmp $64, %ecx jae L(bk_write_more64bytes) L(bk_write_64bytesless): cmp $32, %ecx jb L(bk_write_less32bytes) L(bk_write_more32bytes): /* Copy 32 bytes at a time. */ sub $32, %ecx movl -4(%esi), %eax movl %eax, -4(%edx) movl -8(%esi), %eax movl %eax, -8(%edx) movl -12(%esi), %eax movl %eax, -12(%edx) movl -16(%esi), %eax movl %eax, -16(%edx) movl -20(%esi), %eax movl %eax, -20(%edx) movl -24(%esi), %eax movl %eax, -24(%edx) movl -28(%esi), %eax movl %eax, -28(%edx) movl -32(%esi), %eax movl %eax, -32(%edx) sub $32, %edx sub $32, %esi L(bk_write_less32bytes): movl %esi, %eax sub %ecx, %edx sub %ecx, %eax POP (%esi) L(bk_write_less48bytes): BRANCH_TO_JMPTBL_ENTRY (L(table_48_bytes_bwd), %ecx, 4) CFI_PUSH (%esi) ALIGN (4) L(bk_align): cmp $8, %ecx jbe L(bk_write_less32bytes) testl $1, %edx /* We get here only if (EDX & 3 ) != 0 so if (EDX & 1) ==0, then (EDX & 2) must be != 0. */ jz L(bk_got2) sub $1, %esi sub $1, %ecx sub $1, %edx movzbl (%esi), %eax movb %al, (%edx) testl $2, %edx jz L(bk_aligned_4) L(bk_got2): sub $2, %esi sub $2, %ecx sub $2, %edx movzwl (%esi), %eax movw %ax, (%edx) jmp L(bk_aligned_4) ALIGN (4) L(bk_write_more64bytes): /* Check alignment of last byte. */ testl $15, %edx jz L(bk_ssse3_cpy_pre) /* EDX is aligned 4 bytes, but not 16 bytes. */ L(bk_ssse3_align): sub $4, %esi sub $4, %ecx sub $4, %edx movl (%esi), %eax movl %eax, (%edx) testl $15, %edx jz L(bk_ssse3_cpy_pre) sub $4, %esi sub $4, %ecx sub $4, %edx movl (%esi), %eax movl %eax, (%edx) testl $15, %edx jz L(bk_ssse3_cpy_pre) sub $4, %esi sub $4, %ecx sub $4, %edx movl (%esi), %eax movl %eax, (%edx) L(bk_ssse3_cpy_pre): cmp $64, %ecx jb L(bk_write_more32bytes) L(bk_ssse3_cpy): sub $64, %esi sub $64, %ecx sub $64, %edx movdqu 0x30(%esi), %xmm3 movdqa %xmm3, 0x30(%edx) movdqu 0x20(%esi), %xmm2 movdqa %xmm2, 0x20(%edx) movdqu 0x10(%esi), %xmm1 movdqa %xmm1, 0x10(%edx) movdqu (%esi), %xmm0 movdqa %xmm0, (%edx) cmp $64, %ecx jae L(bk_ssse3_cpy) jmp L(bk_write_64bytesless) #endif END (MEMCPY) #endif