/* strcpy with SSE2 and unaligned load Copyright (C) 2011-2018 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 . */ #if IS_IN (libc) # include # 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) # ifndef STRCPY # define STRCPY __strcpy_sse2 # endif # define STR1 PARMS # define STR2 STR1+4 # define LEN STR2+4 # ifdef USE_AS_STRNCPY # define PARMS 16 # define ENTRANCE PUSH(%ebx); PUSH(%esi); PUSH(%edi) # define RETURN POP(%edi); POP(%esi); POP(%ebx); ret; \ CFI_PUSH(%ebx); CFI_PUSH(%esi); CFI_PUSH(%edi); # ifdef PIC # define JMPTBL(I, B) I - B /* Load an entry in a jump table into ECX 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 ECX. */ \ SETUP_PIC_REG(cx); \ /* Get the address of the jump table. */ \ addl $(TABLE - .), %ecx; \ /* Get the entry and convert the relative offset to the \ absolute address. */ \ addl (%ecx,INDEX,SCALE), %ecx; \ /* We loaded the jump table and adjusted ECX. Go. */ \ _CET_NOTRACK jmp *%ecx # else # 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) # endif .text ENTRY (STRCPY) ENTRANCE mov STR1(%esp), %edi mov STR2(%esp), %esi movl LEN(%esp), %ebx test %ebx, %ebx jz L(ExitZero) mov %esi, %ecx # ifndef USE_AS_STPCPY mov %edi, %eax /* save result */ # endif and $15, %ecx jz L(SourceStringAlignmentZero) and $-16, %esi pxor %xmm0, %xmm0 pxor %xmm1, %xmm1 pcmpeqb (%esi), %xmm1 add %ecx, %ebx pmovmskb %xmm1, %edx shr %cl, %edx # ifdef USE_AS_STPCPY cmp $16, %ebx jbe L(CopyFrom1To16BytesTailCase2OrCase3) # else cmp $17, %ebx jbe L(CopyFrom1To16BytesTailCase2OrCase3) # endif test %edx, %edx jnz L(CopyFrom1To16BytesTail) pcmpeqb 16(%esi), %xmm0 pmovmskb %xmm0, %edx # ifdef USE_AS_STPCPY cmp $32, %ebx jbe L(CopyFrom1To32BytesCase2OrCase3) # else cmp $33, %ebx jbe L(CopyFrom1To32BytesCase2OrCase3) # endif test %edx, %edx jnz L(CopyFrom1To32Bytes) movdqu (%esi, %ecx), %xmm1 /* copy 16 bytes */ movdqu %xmm1, (%edi) sub %ecx, %edi /* If source address alignment != destination address alignment */ .p2align 4 L(Unalign16Both): mov $16, %ecx movdqa (%esi, %ecx), %xmm1 movaps 16(%esi, %ecx), %xmm2 movdqu %xmm1, (%edi, %ecx) pcmpeqb %xmm2, %xmm0 pmovmskb %xmm0, %edx add $16, %ecx sub $48, %ebx jbe L(CopyFrom1To16BytesCase2OrCase3) test %edx, %edx jnz L(CopyFrom1To16BytesUnalignedXmm2) movaps 16(%esi, %ecx), %xmm3 movdqu %xmm2, (%edi, %ecx) pcmpeqb %xmm3, %xmm0 pmovmskb %xmm0, %edx add $16, %ecx sub $16, %ebx jbe L(CopyFrom1To16BytesCase2OrCase3) test %edx, %edx jnz L(CopyFrom1To16BytesUnalignedXmm3) movaps 16(%esi, %ecx), %xmm4 movdqu %xmm3, (%edi, %ecx) pcmpeqb %xmm4, %xmm0 pmovmskb %xmm0, %edx add $16, %ecx sub $16, %ebx jbe L(CopyFrom1To16BytesCase2OrCase3) test %edx, %edx jnz L(CopyFrom1To16BytesUnalignedXmm4) movaps 16(%esi, %ecx), %xmm1 movdqu %xmm4, (%edi, %ecx) pcmpeqb %xmm1, %xmm0 pmovmskb %xmm0, %edx add $16, %ecx sub $16, %ebx jbe L(CopyFrom1To16BytesCase2OrCase3) test %edx, %edx jnz L(CopyFrom1To16BytesUnalignedXmm1) movaps 16(%esi, %ecx), %xmm2 movdqu %xmm1, (%edi, %ecx) pcmpeqb %xmm2, %xmm0 pmovmskb %xmm0, %edx add $16, %ecx sub $16, %ebx jbe L(CopyFrom1To16BytesCase2OrCase3) test %edx, %edx jnz L(CopyFrom1To16BytesUnalignedXmm2) movaps 16(%esi, %ecx), %xmm3 movdqu %xmm2, (%edi, %ecx) pcmpeqb %xmm3, %xmm0 pmovmskb %xmm0, %edx add $16, %ecx sub $16, %ebx jbe L(CopyFrom1To16BytesCase2OrCase3) test %edx, %edx jnz L(CopyFrom1To16BytesUnalignedXmm3) movdqu %xmm3, (%edi, %ecx) mov %esi, %edx lea 16(%esi, %ecx), %esi and $-0x40, %esi sub %esi, %edx sub %edx, %edi lea 128(%ebx, %edx), %ebx L(Unaligned64Loop): movaps (%esi), %xmm2 movaps %xmm2, %xmm4 movaps 16(%esi), %xmm5 movaps 32(%esi), %xmm3 movaps %xmm3, %xmm6 movaps 48(%esi), %xmm7 pminub %xmm5, %xmm2 pminub %xmm7, %xmm3 pminub %xmm2, %xmm3 pcmpeqb %xmm0, %xmm3 pmovmskb %xmm3, %edx sub $64, %ebx jbe L(UnalignedLeaveCase2OrCase3) test %edx, %edx jnz L(Unaligned64Leave) L(Unaligned64Loop_start): add $64, %edi add $64, %esi movdqu %xmm4, -64(%edi) movaps (%esi), %xmm2 movdqa %xmm2, %xmm4 movdqu %xmm5, -48(%edi) movaps 16(%esi), %xmm5 pminub %xmm5, %xmm2 movaps 32(%esi), %xmm3 movdqu %xmm6, -32(%edi) movaps %xmm3, %xmm6 movdqu %xmm7, -16(%edi) movaps 48(%esi), %xmm7 pminub %xmm7, %xmm3 pminub %xmm2, %xmm3 pcmpeqb %xmm0, %xmm3 pmovmskb %xmm3, %edx sub $64, %ebx jbe L(UnalignedLeaveCase2OrCase3) test %edx, %edx jz L(Unaligned64Loop_start) L(Unaligned64Leave): pxor %xmm1, %xmm1 pcmpeqb %xmm4, %xmm0 pcmpeqb %xmm5, %xmm1 pmovmskb %xmm0, %edx pmovmskb %xmm1, %ecx test %edx, %edx jnz L(CopyFrom1To16BytesUnaligned_0) test %ecx, %ecx jnz L(CopyFrom1To16BytesUnaligned_16) pcmpeqb %xmm6, %xmm0 pcmpeqb %xmm7, %xmm1 pmovmskb %xmm0, %edx pmovmskb %xmm1, %ecx test %edx, %edx jnz L(CopyFrom1To16BytesUnaligned_32) bsf %ecx, %edx movdqu %xmm4, (%edi) movdqu %xmm5, 16(%edi) movdqu %xmm6, 32(%edi) # ifdef USE_AS_STPCPY lea 48(%edi, %edx), %eax # endif movdqu %xmm7, 48(%edi) add $15, %ebx sub %edx, %ebx lea 49(%edi, %edx), %edi jmp L(StrncpyFillTailWithZero) /* If source address alignment == destination address alignment */ L(SourceStringAlignmentZero): pxor %xmm0, %xmm0 movdqa (%esi), %xmm1 pcmpeqb %xmm1, %xmm0 pmovmskb %xmm0, %edx # ifdef USE_AS_STPCPY cmp $16, %ebx jbe L(CopyFrom1To16BytesTail1Case2OrCase3) # else cmp $17, %ebx jbe L(CopyFrom1To16BytesTail1Case2OrCase3) # endif test %edx, %edx jnz L(CopyFrom1To16BytesTail1) pcmpeqb 16(%esi), %xmm0 movdqu %xmm1, (%edi) pmovmskb %xmm0, %edx # ifdef USE_AS_STPCPY cmp $32, %ebx jbe L(CopyFrom1To32Bytes1Case2OrCase3) # else cmp $33, %ebx jbe L(CopyFrom1To32Bytes1Case2OrCase3) # endif test %edx, %edx jnz L(CopyFrom1To32Bytes1) jmp L(Unalign16Both) /*-----------------End of main part---------------------------*/ /* Case1 */ .p2align 4 L(CopyFrom1To16BytesTail): sub %ecx, %ebx add %ecx, %esi bsf %edx, %edx BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %edx, 4) .p2align 4 L(CopyFrom1To32Bytes1): add $16, %esi add $16, %edi sub $16, %ebx L(CopyFrom1To16BytesTail1): bsf %edx, %edx BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %edx, 4) .p2align 4 L(CopyFrom1To32Bytes): sub %ecx, %ebx bsf %edx, %edx add %ecx, %esi add $16, %edx sub %ecx, %edx BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %edx, 4) .p2align 4 L(CopyFrom1To16BytesUnaligned_0): bsf %edx, %edx # ifdef USE_AS_STPCPY lea (%edi, %edx), %eax # endif movdqu %xmm4, (%edi) add $63, %ebx sub %edx, %ebx lea 1(%edi, %edx), %edi jmp L(StrncpyFillTailWithZero) .p2align 4 L(CopyFrom1To16BytesUnaligned_16): bsf %ecx, %edx movdqu %xmm4, (%edi) # ifdef USE_AS_STPCPY lea 16(%edi, %edx), %eax # endif movdqu %xmm5, 16(%edi) add $47, %ebx sub %edx, %ebx lea 17(%edi, %edx), %edi jmp L(StrncpyFillTailWithZero) .p2align 4 L(CopyFrom1To16BytesUnaligned_32): bsf %edx, %edx movdqu %xmm4, (%edi) movdqu %xmm5, 16(%edi) # ifdef USE_AS_STPCPY lea 32(%edi, %edx), %eax # endif movdqu %xmm6, 32(%edi) add $31, %ebx sub %edx, %ebx lea 33(%edi, %edx), %edi jmp L(StrncpyFillTailWithZero) .p2align 4 L(CopyFrom1To16BytesUnalignedXmm6): movdqu %xmm6, (%edi, %ecx) jmp L(CopyFrom1To16BytesXmmExit) .p2align 4 L(CopyFrom1To16BytesUnalignedXmm5): movdqu %xmm5, (%edi, %ecx) jmp L(CopyFrom1To16BytesXmmExit) .p2align 4 L(CopyFrom1To16BytesUnalignedXmm4): movdqu %xmm4, (%edi, %ecx) jmp L(CopyFrom1To16BytesXmmExit) .p2align 4 L(CopyFrom1To16BytesUnalignedXmm3): movdqu %xmm3, (%edi, %ecx) jmp L(CopyFrom1To16BytesXmmExit) .p2align 4 L(CopyFrom1To16BytesUnalignedXmm1): movdqu %xmm1, (%edi, %ecx) jmp L(CopyFrom1To16BytesXmmExit) .p2align 4 L(CopyFrom1To16BytesExit): BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %edx, 4) /* Case2 */ .p2align 4 L(CopyFrom1To16BytesCase2): add $16, %ebx add %ecx, %edi add %ecx, %esi bsf %edx, %edx cmp %ebx, %edx jb L(CopyFrom1To16BytesExit) BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %ebx, 4) .p2align 4 L(CopyFrom1To32BytesCase2): sub %ecx, %ebx add %ecx, %esi bsf %edx, %edx add $16, %edx sub %ecx, %edx cmp %ebx, %edx jb L(CopyFrom1To16BytesExit) BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %ebx, 4) L(CopyFrom1To16BytesTailCase2): sub %ecx, %ebx add %ecx, %esi bsf %edx, %edx cmp %ebx, %edx jb L(CopyFrom1To16BytesExit) BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %ebx, 4) L(CopyFrom1To16BytesTail1Case2): bsf %edx, %edx cmp %ebx, %edx jb L(CopyFrom1To16BytesExit) BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %ebx, 4) /* Case2 or Case3, Case3 */ .p2align 4 L(CopyFrom1To16BytesCase2OrCase3): test %edx, %edx jnz L(CopyFrom1To16BytesCase2) L(CopyFrom1To16BytesCase3): add $16, %ebx add %ecx, %edi add %ecx, %esi BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %ebx, 4) .p2align 4 L(CopyFrom1To32BytesCase2OrCase3): test %edx, %edx jnz L(CopyFrom1To32BytesCase2) sub %ecx, %ebx add %ecx, %esi BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %ebx, 4) .p2align 4 L(CopyFrom1To16BytesTailCase2OrCase3): test %edx, %edx jnz L(CopyFrom1To16BytesTailCase2) sub %ecx, %ebx add %ecx, %esi BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %ebx, 4) .p2align 4 L(CopyFrom1To32Bytes1Case2OrCase3): add $16, %edi add $16, %esi sub $16, %ebx L(CopyFrom1To16BytesTail1Case2OrCase3): test %edx, %edx jnz L(CopyFrom1To16BytesTail1Case2) BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %ebx, 4) .p2align 4 L(Exit0): # ifdef USE_AS_STPCPY mov %edi, %eax # endif RETURN .p2align 4 L(Exit1): movb %dh, (%edi) # ifdef USE_AS_STPCPY lea (%edi), %eax # endif sub $1, %ebx lea 1(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit2): movw (%esi), %dx movw %dx, (%edi) # ifdef USE_AS_STPCPY lea 1(%edi), %eax # endif sub $2, %ebx lea 2(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit3): movw (%esi), %cx movw %cx, (%edi) movb %dh, 2(%edi) # ifdef USE_AS_STPCPY lea 2(%edi), %eax # endif sub $3, %ebx lea 3(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit4): movl (%esi), %edx movl %edx, (%edi) # ifdef USE_AS_STPCPY lea 3(%edi), %eax # endif sub $4, %ebx lea 4(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit5): movl (%esi), %ecx movb %dh, 4(%edi) movl %ecx, (%edi) # ifdef USE_AS_STPCPY lea 4(%edi), %eax # endif sub $5, %ebx lea 5(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit6): movl (%esi), %ecx movw 4(%esi), %dx movl %ecx, (%edi) movw %dx, 4(%edi) # ifdef USE_AS_STPCPY lea 5(%edi), %eax # endif sub $6, %ebx lea 6(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit7): movl (%esi), %ecx movl 3(%esi), %edx movl %ecx, (%edi) movl %edx, 3(%edi) # ifdef USE_AS_STPCPY lea 6(%edi), %eax # endif sub $7, %ebx lea 7(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit8): movlpd (%esi), %xmm0 movlpd %xmm0, (%edi) # ifdef USE_AS_STPCPY lea 7(%edi), %eax # endif sub $8, %ebx lea 8(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit9): movlpd (%esi), %xmm0 movb %dh, 8(%edi) movlpd %xmm0, (%edi) # ifdef USE_AS_STPCPY lea 8(%edi), %eax # endif sub $9, %ebx lea 9(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit10): movlpd (%esi), %xmm0 movw 8(%esi), %dx movlpd %xmm0, (%edi) movw %dx, 8(%edi) # ifdef USE_AS_STPCPY lea 9(%edi), %eax # endif sub $10, %ebx lea 10(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit11): movlpd (%esi), %xmm0 movl 7(%esi), %edx movlpd %xmm0, (%edi) movl %edx, 7(%edi) # ifdef USE_AS_STPCPY lea 10(%edi), %eax # endif sub $11, %ebx lea 11(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit12): movlpd (%esi), %xmm0 movl 8(%esi), %edx movlpd %xmm0, (%edi) movl %edx, 8(%edi) # ifdef USE_AS_STPCPY lea 11(%edi), %eax # endif sub $12, %ebx lea 12(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit13): movlpd (%esi), %xmm0 movlpd 5(%esi), %xmm1 movlpd %xmm0, (%edi) movlpd %xmm1, 5(%edi) # ifdef USE_AS_STPCPY lea 12(%edi), %eax # endif sub $13, %ebx lea 13(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit14): movlpd (%esi), %xmm0 movlpd 6(%esi), %xmm1 movlpd %xmm0, (%edi) movlpd %xmm1, 6(%edi) # ifdef USE_AS_STPCPY lea 13(%edi), %eax # endif sub $14, %ebx lea 14(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit15): movlpd (%esi), %xmm0 movlpd 7(%esi), %xmm1 movlpd %xmm0, (%edi) movlpd %xmm1, 7(%edi) # ifdef USE_AS_STPCPY lea 14(%edi), %eax # endif sub $15, %ebx lea 15(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit16): movdqu (%esi), %xmm0 movdqu %xmm0, (%edi) # ifdef USE_AS_STPCPY lea 15(%edi), %eax # endif sub $16, %ebx lea 16(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit17): movdqu (%esi), %xmm0 movdqu %xmm0, (%edi) movb %dh, 16(%edi) # ifdef USE_AS_STPCPY lea 16(%edi), %eax # endif sub $17, %ebx lea 17(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit18): movdqu (%esi), %xmm0 movw 16(%esi), %cx movdqu %xmm0, (%edi) movw %cx, 16(%edi) # ifdef USE_AS_STPCPY lea 17(%edi), %eax # endif sub $18, %ebx lea 18(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit19): movdqu (%esi), %xmm0 movl 15(%esi), %ecx movdqu %xmm0, (%edi) movl %ecx, 15(%edi) # ifdef USE_AS_STPCPY lea 18(%edi), %eax # endif sub $19, %ebx lea 19(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit20): movdqu (%esi), %xmm0 movl 16(%esi), %ecx movdqu %xmm0, (%edi) movl %ecx, 16(%edi) # ifdef USE_AS_STPCPY lea 19(%edi), %eax # endif sub $20, %ebx lea 20(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit21): movdqu (%esi), %xmm0 movl 16(%esi), %ecx movdqu %xmm0, (%edi) movl %ecx, 16(%edi) movb %dh, 20(%edi) # ifdef USE_AS_STPCPY lea 20(%edi), %eax # endif sub $21, %ebx lea 21(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit22): movdqu (%esi), %xmm0 movlpd 14(%esi), %xmm3 movdqu %xmm0, (%edi) movlpd %xmm3, 14(%edi) # ifdef USE_AS_STPCPY lea 21(%edi), %eax # endif sub $22, %ebx lea 22(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit23): movdqu (%esi), %xmm0 movlpd 15(%esi), %xmm3 movdqu %xmm0, (%edi) movlpd %xmm3, 15(%edi) # ifdef USE_AS_STPCPY lea 22(%edi), %eax # endif sub $23, %ebx lea 23(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit24): movdqu (%esi), %xmm0 movlpd 16(%esi), %xmm2 movdqu %xmm0, (%edi) movlpd %xmm2, 16(%edi) # ifdef USE_AS_STPCPY lea 23(%edi), %eax # endif sub $24, %ebx lea 24(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit25): movdqu (%esi), %xmm0 movlpd 16(%esi), %xmm2 movdqu %xmm0, (%edi) movlpd %xmm2, 16(%edi) movb %dh, 24(%edi) # ifdef USE_AS_STPCPY lea 24(%edi), %eax # endif sub $25, %ebx lea 25(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit26): movdqu (%esi), %xmm0 movlpd 16(%esi), %xmm2 movw 24(%esi), %cx movdqu %xmm0, (%edi) movlpd %xmm2, 16(%edi) movw %cx, 24(%edi) # ifdef USE_AS_STPCPY lea 25(%edi), %eax # endif sub $26, %ebx lea 26(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit27): movdqu (%esi), %xmm0 movlpd 16(%esi), %xmm2 movl 23(%esi), %ecx movdqu %xmm0, (%edi) movlpd %xmm2, 16(%edi) movl %ecx, 23(%edi) # ifdef USE_AS_STPCPY lea 26(%edi), %eax # endif sub $27, %ebx lea 27(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit28): movdqu (%esi), %xmm0 movlpd 16(%esi), %xmm2 movl 24(%esi), %ecx movdqu %xmm0, (%edi) movlpd %xmm2, 16(%edi) movl %ecx, 24(%edi) # ifdef USE_AS_STPCPY lea 27(%edi), %eax # endif sub $28, %ebx lea 28(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit29): movdqu (%esi), %xmm0 movdqu 13(%esi), %xmm2 movdqu %xmm0, (%edi) movdqu %xmm2, 13(%edi) # ifdef USE_AS_STPCPY lea 28(%edi), %eax # endif sub $29, %ebx lea 29(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit30): movdqu (%esi), %xmm0 movdqu 14(%esi), %xmm2 movdqu %xmm0, (%edi) movdqu %xmm2, 14(%edi) # ifdef USE_AS_STPCPY lea 29(%edi), %eax # endif sub $30, %ebx lea 30(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit31): movdqu (%esi), %xmm0 movdqu 15(%esi), %xmm2 movdqu %xmm0, (%edi) movdqu %xmm2, 15(%edi) # ifdef USE_AS_STPCPY lea 30(%edi), %eax # endif sub $31, %ebx lea 31(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(Exit32): movdqu (%esi), %xmm0 movdqu 16(%esi), %xmm2 movdqu %xmm0, (%edi) movdqu %xmm2, 16(%edi) # ifdef USE_AS_STPCPY lea 31(%edi), %eax # endif sub $32, %ebx lea 32(%edi), %edi jnz L(StrncpyFillTailWithZero) RETURN .p2align 4 L(StrncpyExit1): movb (%esi), %dl movb %dl, (%edi) # ifdef USE_AS_STPCPY lea 1(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit2): movw (%esi), %dx movw %dx, (%edi) # ifdef USE_AS_STPCPY lea 2(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit3): movw (%esi), %cx movb 2(%esi), %dl movw %cx, (%edi) movb %dl, 2(%edi) # ifdef USE_AS_STPCPY lea 3(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit4): movl (%esi), %edx movl %edx, (%edi) # ifdef USE_AS_STPCPY lea 4(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit5): movl (%esi), %ecx movb 4(%esi), %dl movl %ecx, (%edi) movb %dl, 4(%edi) # ifdef USE_AS_STPCPY lea 5(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit6): movl (%esi), %ecx movw 4(%esi), %dx movl %ecx, (%edi) movw %dx, 4(%edi) # ifdef USE_AS_STPCPY lea 6(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit7): movl (%esi), %ecx movl 3(%esi), %edx movl %ecx, (%edi) movl %edx, 3(%edi) # ifdef USE_AS_STPCPY lea 7(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit8): movlpd (%esi), %xmm0 movlpd %xmm0, (%edi) # ifdef USE_AS_STPCPY lea 8(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit9): movlpd (%esi), %xmm0 movb 8(%esi), %dl movlpd %xmm0, (%edi) movb %dl, 8(%edi) # ifdef USE_AS_STPCPY lea 9(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit10): movlpd (%esi), %xmm0 movw 8(%esi), %dx movlpd %xmm0, (%edi) movw %dx, 8(%edi) # ifdef USE_AS_STPCPY lea 10(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit11): movlpd (%esi), %xmm0 movl 7(%esi), %edx movlpd %xmm0, (%edi) movl %edx, 7(%edi) # ifdef USE_AS_STPCPY lea 11(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit12): movlpd (%esi), %xmm0 movl 8(%esi), %edx movlpd %xmm0, (%edi) movl %edx, 8(%edi) # ifdef USE_AS_STPCPY lea 12(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit13): movlpd (%esi), %xmm0 movlpd 5(%esi), %xmm1 movlpd %xmm0, (%edi) movlpd %xmm1, 5(%edi) # ifdef USE_AS_STPCPY lea 13(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit14): movlpd (%esi), %xmm0 movlpd 6(%esi), %xmm1 movlpd %xmm0, (%edi) movlpd %xmm1, 6(%edi) # ifdef USE_AS_STPCPY lea 14(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit15): movlpd (%esi), %xmm0 movlpd 7(%esi), %xmm1 movlpd %xmm0, (%edi) movlpd %xmm1, 7(%edi) # ifdef USE_AS_STPCPY lea 15(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit16): movdqu (%esi), %xmm0 movdqu %xmm0, (%edi) # ifdef USE_AS_STPCPY lea 16(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit17): movdqu (%esi), %xmm0 movb 16(%esi), %cl movdqu %xmm0, (%edi) movb %cl, 16(%edi) # ifdef USE_AS_STPCPY lea 17(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit18): movdqu (%esi), %xmm0 movw 16(%esi), %cx movdqu %xmm0, (%edi) movw %cx, 16(%edi) # ifdef USE_AS_STPCPY lea 18(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit19): movdqu (%esi), %xmm0 movl 15(%esi), %ecx movdqu %xmm0, (%edi) movl %ecx, 15(%edi) # ifdef USE_AS_STPCPY lea 19(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit20): movdqu (%esi), %xmm0 movl 16(%esi), %ecx movdqu %xmm0, (%edi) movl %ecx, 16(%edi) # ifdef USE_AS_STPCPY lea 20(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit21): movdqu (%esi), %xmm0 movl 16(%esi), %ecx movb 20(%esi), %dl movdqu %xmm0, (%edi) movl %ecx, 16(%edi) movb %dl, 20(%edi) # ifdef USE_AS_STPCPY lea 21(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit22): movdqu (%esi), %xmm0 movlpd 14(%esi), %xmm3 movdqu %xmm0, (%edi) movlpd %xmm3, 14(%edi) # ifdef USE_AS_STPCPY lea 22(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit23): movdqu (%esi), %xmm0 movlpd 15(%esi), %xmm3 movdqu %xmm0, (%edi) movlpd %xmm3, 15(%edi) # ifdef USE_AS_STPCPY lea 23(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit24): movdqu (%esi), %xmm0 movlpd 16(%esi), %xmm2 movdqu %xmm0, (%edi) movlpd %xmm2, 16(%edi) # ifdef USE_AS_STPCPY lea 24(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit25): movdqu (%esi), %xmm0 movlpd 16(%esi), %xmm2 movb 24(%esi), %cl movdqu %xmm0, (%edi) movlpd %xmm2, 16(%edi) movb %cl, 24(%edi) # ifdef USE_AS_STPCPY lea 25(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit26): movdqu (%esi), %xmm0 movlpd 16(%esi), %xmm2 movw 24(%esi), %cx movdqu %xmm0, (%edi) movlpd %xmm2, 16(%edi) movw %cx, 24(%edi) # ifdef USE_AS_STPCPY lea 26(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit27): movdqu (%esi), %xmm0 movlpd 16(%esi), %xmm2 movl 23(%esi), %ecx movdqu %xmm0, (%edi) movlpd %xmm2, 16(%edi) movl %ecx, 23(%edi) # ifdef USE_AS_STPCPY lea 27(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit28): movdqu (%esi), %xmm0 movlpd 16(%esi), %xmm2 movl 24(%esi), %ecx movdqu %xmm0, (%edi) movlpd %xmm2, 16(%edi) movl %ecx, 24(%edi) # ifdef USE_AS_STPCPY lea 28(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit29): movdqu (%esi), %xmm0 movdqu 13(%esi), %xmm2 movdqu %xmm0, (%edi) movdqu %xmm2, 13(%edi) # ifdef USE_AS_STPCPY lea 29(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit30): movdqu (%esi), %xmm0 movdqu 14(%esi), %xmm2 movdqu %xmm0, (%edi) movdqu %xmm2, 14(%edi) # ifdef USE_AS_STPCPY lea 30(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit31): movdqu (%esi), %xmm0 movdqu 15(%esi), %xmm2 movdqu %xmm0, (%edi) movdqu %xmm2, 15(%edi) # ifdef USE_AS_STPCPY lea 31(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit32): movdqu (%esi), %xmm0 movdqu 16(%esi), %xmm2 movdqu %xmm0, (%edi) movdqu %xmm2, 16(%edi) # ifdef USE_AS_STPCPY lea 32(%edi), %eax # endif RETURN .p2align 4 L(StrncpyExit33): movdqu (%esi), %xmm0 movdqu 16(%esi), %xmm2 movb 32(%esi), %cl movdqu %xmm0, (%edi) movdqu %xmm2, 16(%edi) movb %cl, 32(%edi) RETURN .p2align 4 L(Fill0): RETURN .p2align 4 L(Fill1): movb %dl, (%edi) RETURN .p2align 4 L(Fill2): movw %dx, (%edi) RETURN .p2align 4 L(Fill3): movl %edx, -1(%edi) RETURN .p2align 4 L(Fill4): movl %edx, (%edi) RETURN .p2align 4 L(Fill5): movl %edx, (%edi) movb %dl, 4(%edi) RETURN .p2align 4 L(Fill6): movl %edx, (%edi) movw %dx, 4(%edi) RETURN .p2align 4 L(Fill7): movlpd %xmm0, -1(%edi) RETURN .p2align 4 L(Fill8): movlpd %xmm0, (%edi) RETURN .p2align 4 L(Fill9): movlpd %xmm0, (%edi) movb %dl, 8(%edi) RETURN .p2align 4 L(Fill10): movlpd %xmm0, (%edi) movw %dx, 8(%edi) RETURN .p2align 4 L(Fill11): movlpd %xmm0, (%edi) movl %edx, 7(%edi) RETURN .p2align 4 L(Fill12): movlpd %xmm0, (%edi) movl %edx, 8(%edi) RETURN .p2align 4 L(Fill13): movlpd %xmm0, (%edi) movlpd %xmm0, 5(%edi) RETURN .p2align 4 L(Fill14): movlpd %xmm0, (%edi) movlpd %xmm0, 6(%edi) RETURN .p2align 4 L(Fill15): movdqu %xmm0, -1(%edi) RETURN .p2align 4 L(Fill16): movdqu %xmm0, (%edi) RETURN .p2align 4 L(CopyFrom1To16BytesUnalignedXmm2): movdqu %xmm2, (%edi, %ecx) .p2align 4 L(CopyFrom1To16BytesXmmExit): bsf %edx, %edx add $15, %ebx add %ecx, %edi # ifdef USE_AS_STPCPY lea (%edi, %edx), %eax # endif sub %edx, %ebx lea 1(%edi, %edx), %edi .p2align 4 L(StrncpyFillTailWithZero): pxor %xmm0, %xmm0 xor %edx, %edx sub $16, %ebx jbe L(StrncpyFillExit) movdqu %xmm0, (%edi) add $16, %edi mov %edi, %esi and $0xf, %esi sub %esi, %edi add %esi, %ebx sub $64, %ebx jb L(StrncpyFillLess64) L(StrncpyFillLoopMovdqa): movdqa %xmm0, (%edi) movdqa %xmm0, 16(%edi) movdqa %xmm0, 32(%edi) movdqa %xmm0, 48(%edi) add $64, %edi sub $64, %ebx jae L(StrncpyFillLoopMovdqa) L(StrncpyFillLess64): add $32, %ebx jl L(StrncpyFillLess32) movdqa %xmm0, (%edi) movdqa %xmm0, 16(%edi) add $32, %edi sub $16, %ebx jl L(StrncpyFillExit) movdqa %xmm0, (%edi) add $16, %edi BRANCH_TO_JMPTBL_ENTRY (L(FillTable), %ebx, 4) L(StrncpyFillLess32): add $16, %ebx jl L(StrncpyFillExit) movdqa %xmm0, (%edi) add $16, %edi BRANCH_TO_JMPTBL_ENTRY (L(FillTable), %ebx, 4) L(StrncpyFillExit): add $16, %ebx BRANCH_TO_JMPTBL_ENTRY (L(FillTable), %ebx, 4) .p2align 4 L(UnalignedLeaveCase2OrCase3): test %edx, %edx jnz L(Unaligned64LeaveCase2) L(Unaligned64LeaveCase3): lea 64(%ebx), %ecx and $-16, %ecx add $48, %ebx jl L(CopyFrom1To16BytesCase3) movdqu %xmm4, (%edi) sub $16, %ebx jb L(CopyFrom1To16BytesCase3) movdqu %xmm5, 16(%edi) sub $16, %ebx jb L(CopyFrom1To16BytesCase3) movdqu %xmm6, 32(%edi) sub $16, %ebx jb L(CopyFrom1To16BytesCase3) movdqu %xmm7, 48(%edi) # ifdef USE_AS_STPCPY lea 64(%edi), %eax # endif RETURN .p2align 4 L(Unaligned64LeaveCase2): xor %ecx, %ecx pcmpeqb %xmm4, %xmm0 pmovmskb %xmm0, %edx add $48, %ebx jle L(CopyFrom1To16BytesCase2OrCase3) test %edx, %edx jnz L(CopyFrom1To16BytesUnalignedXmm4) pcmpeqb %xmm5, %xmm0 pmovmskb %xmm0, %edx movdqu %xmm4, (%edi) add $16, %ecx sub $16, %ebx jbe L(CopyFrom1To16BytesCase2OrCase3) test %edx, %edx jnz L(CopyFrom1To16BytesUnalignedXmm5) pcmpeqb %xmm6, %xmm0 pmovmskb %xmm0, %edx movdqu %xmm5, 16(%edi) add $16, %ecx sub $16, %ebx jbe L(CopyFrom1To16BytesCase2OrCase3) test %edx, %edx jnz L(CopyFrom1To16BytesUnalignedXmm6) pcmpeqb %xmm7, %xmm0 pmovmskb %xmm0, %edx movdqu %xmm6, 32(%edi) lea 16(%edi, %ecx), %edi lea 16(%esi, %ecx), %esi bsf %edx, %edx cmp %ebx, %edx jb L(CopyFrom1To16BytesExit) BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %ebx, 4) .p2align 4 L(ExitZero): movl %edi, %eax RETURN END (STRCPY) .p2align 4 .section .rodata L(ExitTable): .int JMPTBL(L(Exit1), L(ExitTable)) .int JMPTBL(L(Exit2), L(ExitTable)) .int JMPTBL(L(Exit3), L(ExitTable)) .int JMPTBL(L(Exit4), L(ExitTable)) .int JMPTBL(L(Exit5), L(ExitTable)) .int JMPTBL(L(Exit6), L(ExitTable)) .int JMPTBL(L(Exit7), L(ExitTable)) .int JMPTBL(L(Exit8), L(ExitTable)) .int JMPTBL(L(Exit9), L(ExitTable)) .int JMPTBL(L(Exit10), L(ExitTable)) .int JMPTBL(L(Exit11), L(ExitTable)) .int JMPTBL(L(Exit12), L(ExitTable)) .int JMPTBL(L(Exit13), L(ExitTable)) .int JMPTBL(L(Exit14), L(ExitTable)) .int JMPTBL(L(Exit15), L(ExitTable)) .int JMPTBL(L(Exit16), L(ExitTable)) .int JMPTBL(L(Exit17), L(ExitTable)) .int JMPTBL(L(Exit18), L(ExitTable)) .int JMPTBL(L(Exit19), L(ExitTable)) .int JMPTBL(L(Exit20), L(ExitTable)) .int JMPTBL(L(Exit21), L(ExitTable)) .int JMPTBL(L(Exit22), L(ExitTable)) .int JMPTBL(L(Exit23), L(ExitTable)) .int JMPTBL(L(Exit24), L(ExitTable)) .int JMPTBL(L(Exit25), L(ExitTable)) .int JMPTBL(L(Exit26), L(ExitTable)) .int JMPTBL(L(Exit27), L(ExitTable)) .int JMPTBL(L(Exit28), L(ExitTable)) .int JMPTBL(L(Exit29), L(ExitTable)) .int JMPTBL(L(Exit30), L(ExitTable)) .int JMPTBL(L(Exit31), L(ExitTable)) .int JMPTBL(L(Exit32), L(ExitTable)) L(ExitStrncpyTable): .int JMPTBL(L(Exit0), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit1), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit2), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit3), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit4), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit5), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit6), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit7), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit8), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit9), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit10), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit11), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit12), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit13), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit14), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit15), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit16), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit17), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit18), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit19), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit20), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit21), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit22), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit23), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit24), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit25), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit26), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit27), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit28), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit29), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit30), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit31), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit32), L(ExitStrncpyTable)) .int JMPTBL(L(StrncpyExit33), L(ExitStrncpyTable)) .p2align 4 L(FillTable): .int JMPTBL(L(Fill0), L(FillTable)) .int JMPTBL(L(Fill1), L(FillTable)) .int JMPTBL(L(Fill2), L(FillTable)) .int JMPTBL(L(Fill3), L(FillTable)) .int JMPTBL(L(Fill4), L(FillTable)) .int JMPTBL(L(Fill5), L(FillTable)) .int JMPTBL(L(Fill6), L(FillTable)) .int JMPTBL(L(Fill7), L(FillTable)) .int JMPTBL(L(Fill8), L(FillTable)) .int JMPTBL(L(Fill9), L(FillTable)) .int JMPTBL(L(Fill10), L(FillTable)) .int JMPTBL(L(Fill11), L(FillTable)) .int JMPTBL(L(Fill12), L(FillTable)) .int JMPTBL(L(Fill13), L(FillTable)) .int JMPTBL(L(Fill14), L(FillTable)) .int JMPTBL(L(Fill15), L(FillTable)) .int JMPTBL(L(Fill16), L(FillTable)) # else # define PARMS 4 # define ENTRANCE # define RETURN POP (%edi); ret; CFI_PUSH (%edi) # define RETURN1 ret .text ENTRY (STRCPY) ENTRANCE mov STR1(%esp), %edx mov STR2(%esp), %ecx cmpb $0, (%ecx) jz L(ExitTail1) cmpb $0, 1(%ecx) jz L(ExitTail2) cmpb $0, 2(%ecx) jz L(ExitTail3) cmpb $0, 3(%ecx) jz L(ExitTail4) cmpb $0, 4(%ecx) jz L(ExitTail5) cmpb $0, 5(%ecx) jz L(ExitTail6) cmpb $0, 6(%ecx) jz L(ExitTail7) cmpb $0, 7(%ecx) jz L(ExitTail8) cmpb $0, 8(%ecx) jz L(ExitTail9) cmpb $0, 9(%ecx) jz L(ExitTail10) cmpb $0, 10(%ecx) jz L(ExitTail11) cmpb $0, 11(%ecx) jz L(ExitTail12) cmpb $0, 12(%ecx) jz L(ExitTail13) cmpb $0, 13(%ecx) jz L(ExitTail14) cmpb $0, 14(%ecx) jz L(ExitTail15) cmpb $0, 15(%ecx) jz L(ExitTail16) PUSH (%edi) PUSH (%ebx) mov %edx, %edi lea 16(%ecx), %ebx and $-16, %ebx pxor %xmm0, %xmm0 movdqu (%ecx), %xmm1 movdqu %xmm1, (%edx) pcmpeqb (%ebx), %xmm0 pmovmskb %xmm0, %eax sub %ecx, %ebx test %eax, %eax jnz L(CopyFrom1To16Bytes) mov %ecx, %eax lea 16(%ecx), %ecx and $-16, %ecx sub %ecx, %eax sub %eax, %edx xor %ebx, %ebx .p2align 4 movdqa (%ecx), %xmm1 movaps 16(%ecx), %xmm2 movdqu %xmm1, (%edx) pcmpeqb %xmm2, %xmm0 pmovmskb %xmm0, %eax add $16, %ebx test %eax, %eax jnz L(CopyFrom1To16Bytes) movaps 16(%ecx, %ebx), %xmm3 movdqu %xmm2, (%edx, %ebx) pcmpeqb %xmm3, %xmm0 pmovmskb %xmm0, %eax add $16, %ebx test %eax, %eax jnz L(CopyFrom1To16Bytes) movaps 16(%ecx, %ebx), %xmm4 movdqu %xmm3, (%edx, %ebx) pcmpeqb %xmm4, %xmm0 pmovmskb %xmm0, %eax add $16, %ebx test %eax, %eax jnz L(CopyFrom1To16Bytes) movaps 16(%ecx, %ebx), %xmm1 movdqu %xmm4, (%edx, %ebx) pcmpeqb %xmm1, %xmm0 pmovmskb %xmm0, %eax add $16, %ebx test %eax, %eax jnz L(CopyFrom1To16Bytes) movaps 16(%ecx, %ebx), %xmm2 movdqu %xmm1, (%edx, %ebx) pcmpeqb %xmm2, %xmm0 pmovmskb %xmm0, %eax add $16, %ebx test %eax, %eax jnz L(CopyFrom1To16Bytes) movaps 16(%ecx, %ebx), %xmm3 movdqu %xmm2, (%edx, %ebx) pcmpeqb %xmm3, %xmm0 pmovmskb %xmm0, %eax add $16, %ebx test %eax, %eax jnz L(CopyFrom1To16Bytes) movdqu %xmm3, (%edx, %ebx) mov %ecx, %eax lea 16(%ecx, %ebx), %ecx and $-0x40, %ecx sub %ecx, %eax sub %eax, %edx L(Aligned64Loop): movaps (%ecx), %xmm2 movaps %xmm2, %xmm4 movaps 16(%ecx), %xmm5 movaps 32(%ecx), %xmm3 movaps %xmm3, %xmm6 movaps 48(%ecx), %xmm7 pminub %xmm5, %xmm2 add $64, %ecx pminub %xmm7, %xmm3 add $64, %edx pminub %xmm2, %xmm3 pcmpeqb %xmm0, %xmm3 pmovmskb %xmm3, %eax test %eax, %eax jnz L(Aligned64Leave) L(Aligned64Loop_start): movdqu %xmm4, -64(%edx) movaps (%ecx), %xmm2 movdqa %xmm2, %xmm4 movdqu %xmm5, -48(%edx) movaps 16(%ecx), %xmm5 pminub %xmm5, %xmm2 movaps 32(%ecx), %xmm3 movdqu %xmm6, -32(%edx) movaps %xmm3, %xmm6 movdqu %xmm7, -16(%edx) movaps 48(%ecx), %xmm7 pminub %xmm7, %xmm3 pminub %xmm2, %xmm3 pcmpeqb %xmm3, %xmm0 pmovmskb %xmm0, %eax add $64, %edx add $64, %ecx test %eax, %eax jz L(Aligned64Loop_start) L(Aligned64Leave): sub $0xa0, %ebx pxor %xmm0, %xmm0 pcmpeqb %xmm4, %xmm0 pmovmskb %xmm0, %eax test %eax, %eax jnz L(CopyFrom1To16Bytes) pcmpeqb %xmm5, %xmm0 pmovmskb %xmm0, %eax movdqu %xmm4, -64(%edx) test %eax, %eax lea 16(%ebx), %ebx jnz L(CopyFrom1To16Bytes) pcmpeqb %xmm6, %xmm0 pmovmskb %xmm0, %eax movdqu %xmm5, -48(%edx) test %eax, %eax lea 16(%ebx), %ebx jnz L(CopyFrom1To16Bytes) movdqu %xmm6, -32(%edx) pcmpeqb %xmm7, %xmm0 pmovmskb %xmm0, %eax lea 16(%ebx), %ebx /*-----------------End of main part---------------------------*/ .p2align 4 L(CopyFrom1To16Bytes): add %ebx, %edx add %ebx, %ecx POP (%ebx) test %al, %al jz L(ExitHigh) test $0x01, %al jnz L(Exit1) test $0x02, %al jnz L(Exit2) test $0x04, %al jnz L(Exit3) test $0x08, %al jnz L(Exit4) test $0x10, %al jnz L(Exit5) test $0x20, %al jnz L(Exit6) test $0x40, %al jnz L(Exit7) /* Exit 8 */ movl (%ecx), %eax movl %eax, (%edx) movl 4(%ecx), %eax movl %eax, 4(%edx) # ifdef USE_AS_STPCPY lea 7(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(ExitHigh): test $0x01, %ah jnz L(Exit9) test $0x02, %ah jnz L(Exit10) test $0x04, %ah jnz L(Exit11) test $0x08, %ah jnz L(Exit12) test $0x10, %ah jnz L(Exit13) test $0x20, %ah jnz L(Exit14) test $0x40, %ah jnz L(Exit15) /* Exit 16 */ movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 8(%ecx), %xmm0 movlpd %xmm0, 8(%edx) # ifdef USE_AS_STPCPY lea 15(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit1): movb (%ecx), %al movb %al, (%edx) # ifdef USE_AS_STPCPY lea (%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit2): movw (%ecx), %ax movw %ax, (%edx) # ifdef USE_AS_STPCPY lea 1(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit3): movw (%ecx), %ax movw %ax, (%edx) movb 2(%ecx), %al movb %al, 2(%edx) # ifdef USE_AS_STPCPY lea 2(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit4): movl (%ecx), %eax movl %eax, (%edx) # ifdef USE_AS_STPCPY lea 3(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit5): movl (%ecx), %eax movl %eax, (%edx) movb 4(%ecx), %al movb %al, 4(%edx) # ifdef USE_AS_STPCPY lea 4(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit6): movl (%ecx), %eax movl %eax, (%edx) movw 4(%ecx), %ax movw %ax, 4(%edx) # ifdef USE_AS_STPCPY lea 5(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit7): movl (%ecx), %eax movl %eax, (%edx) movl 3(%ecx), %eax movl %eax, 3(%edx) # ifdef USE_AS_STPCPY lea 6(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit9): movl (%ecx), %eax movl %eax, (%edx) movl 4(%ecx), %eax movl %eax, 4(%edx) movb 8(%ecx), %al movb %al, 8(%edx) # ifdef USE_AS_STPCPY lea 8(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit10): movl (%ecx), %eax movl %eax, (%edx) movl 4(%ecx), %eax movl %eax, 4(%edx) movw 8(%ecx), %ax movw %ax, 8(%edx) # ifdef USE_AS_STPCPY lea 9(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit11): movl (%ecx), %eax movl %eax, (%edx) movl 4(%ecx), %eax movl %eax, 4(%edx) movl 7(%ecx), %eax movl %eax, 7(%edx) # ifdef USE_AS_STPCPY lea 10(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit12): movl (%ecx), %eax movl %eax, (%edx) movl 4(%ecx), %eax movl %eax, 4(%edx) movl 8(%ecx), %eax movl %eax, 8(%edx) # ifdef USE_AS_STPCPY lea 11(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit13): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 5(%ecx), %xmm0 movlpd %xmm0, 5(%edx) # ifdef USE_AS_STPCPY lea 12(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit14): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 6(%ecx), %xmm0 movlpd %xmm0, 6(%edx) # ifdef USE_AS_STPCPY lea 13(%edx), %eax # else movl %edi, %eax # endif RETURN .p2align 4 L(Exit15): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 7(%ecx), %xmm0 movlpd %xmm0, 7(%edx) # ifdef USE_AS_STPCPY lea 14(%edx), %eax # else movl %edi, %eax # endif RETURN CFI_POP (%edi) .p2align 4 L(ExitTail1): movb (%ecx), %al movb %al, (%edx) movl %edx, %eax RETURN1 .p2align 4 L(ExitTail2): movw (%ecx), %ax movw %ax, (%edx) # ifdef USE_AS_STPCPY lea 1(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail3): movw (%ecx), %ax movw %ax, (%edx) movb 2(%ecx), %al movb %al, 2(%edx) # ifdef USE_AS_STPCPY lea 2(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail4): movl (%ecx), %eax movl %eax, (%edx) # ifdef USE_AS_STPCPY lea 3(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail5): movl (%ecx), %eax movl %eax, (%edx) movb 4(%ecx), %al movb %al, 4(%edx) # ifdef USE_AS_STPCPY lea 4(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail6): movl (%ecx), %eax movl %eax, (%edx) movw 4(%ecx), %ax movw %ax, 4(%edx) # ifdef USE_AS_STPCPY lea 5(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail7): movl (%ecx), %eax movl %eax, (%edx) movl 3(%ecx), %eax movl %eax, 3(%edx) # ifdef USE_AS_STPCPY lea 6(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail8): movl (%ecx), %eax movl %eax, (%edx) movl 4(%ecx), %eax movl %eax, 4(%edx) # ifdef USE_AS_STPCPY lea 7(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail9): movl (%ecx), %eax movl %eax, (%edx) movl 4(%ecx), %eax movl %eax, 4(%edx) movb 8(%ecx), %al movb %al, 8(%edx) # ifdef USE_AS_STPCPY lea 8(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail10): movl (%ecx), %eax movl %eax, (%edx) movl 4(%ecx), %eax movl %eax, 4(%edx) movw 8(%ecx), %ax movw %ax, 8(%edx) # ifdef USE_AS_STPCPY lea 9(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail11): movl (%ecx), %eax movl %eax, (%edx) movl 4(%ecx), %eax movl %eax, 4(%edx) movl 7(%ecx), %eax movl %eax, 7(%edx) # ifdef USE_AS_STPCPY lea 10(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail12): movl (%ecx), %eax movl %eax, (%edx) movl 4(%ecx), %eax movl %eax, 4(%edx) movl 8(%ecx), %eax movl %eax, 8(%edx) # ifdef USE_AS_STPCPY lea 11(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail13): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 5(%ecx), %xmm0 movlpd %xmm0, 5(%edx) # ifdef USE_AS_STPCPY lea 12(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail14): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 6(%ecx), %xmm0 movlpd %xmm0, 6(%edx) # ifdef USE_AS_STPCPY lea 13(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail15): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 7(%ecx), %xmm0 movlpd %xmm0, 7(%edx) # ifdef USE_AS_STPCPY lea 14(%edx), %eax # else movl %edx, %eax # endif RETURN1 .p2align 4 L(ExitTail16): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 8(%ecx), %xmm0 movlpd %xmm0, 8(%edx) # ifdef USE_AS_STPCPY lea 15(%edx), %eax # else movl %edx, %eax # endif RETURN1 END (STRCPY) # endif #endif