/* Copyright (c) 2011, Intel Corporation All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * Neither the name of Intel Corporation nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #define USE_AS_STRNCPY #define STRCPY strlcpy #define STRLEN strlcpy #define USE_AS_STRLCPY #include "ssse3-strcpy-atom.S" .p2align 4 L(CopyFrom1To16Bytes): add %esi, %edx add %esi, %ecx POP (%esi) test %al, %al jz L(ExitHigh8) L(CopyFrom1To16BytesLess8): mov %al, %ah and $15, %ah jz L(ExitHigh4) test $0x01, %al jnz L(Exit1) test $0x02, %al jnz L(Exit2) test $0x04, %al jnz L(Exit3) L(Exit4): movl (%ecx), %eax movl %eax, (%edx) lea 3(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(ExitHigh4): test $0x10, %al jnz L(Exit5) test $0x20, %al jnz L(Exit6) test $0x40, %al jnz L(Exit7) L(Exit8): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) lea 7(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(ExitHigh8): mov %ah, %al and $15, %al jz L(ExitHigh12) test $0x01, %ah jnz L(Exit9) test $0x02, %ah jnz L(Exit10) test $0x04, %ah jnz L(Exit11) L(Exit12): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movl 8(%ecx), %eax movl %eax, 8(%edx) lea 11(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(ExitHigh12): test $0x10, %ah jnz L(Exit13) test $0x20, %ah jnz L(Exit14) test $0x40, %ah jnz L(Exit15) L(Exit16): movlpd (%ecx), %xmm0 movlpd 8(%ecx), %xmm1 movlpd %xmm0, (%edx) movlpd %xmm1, 8(%edx) lea 15(%ecx), %eax sub %edi, %eax RETURN1 CFI_PUSH(%esi) .p2align 4 L(CopyFrom1To16BytesCase2): add $16, %ebx add %esi, %ecx add %esi, %edx POP (%esi) test %al, %al jz L(ExitHighCase2) cmp $8, %ebx ja L(CopyFrom1To16BytesLess8) test $0x01, %al jnz L(Exit1) cmp $1, %ebx je L(StrlcpyExit1) test $0x02, %al jnz L(Exit2) cmp $2, %ebx je L(StrlcpyExit2) test $0x04, %al jnz L(Exit3) cmp $3, %ebx je L(StrlcpyExit3) test $0x08, %al jnz L(Exit4) cmp $4, %ebx je L(StrlcpyExit4) test $0x10, %al jnz L(Exit5) cmp $5, %ebx je L(StrlcpyExit5) test $0x20, %al jnz L(Exit6) cmp $6, %ebx je L(StrlcpyExit6) test $0x40, %al jnz L(Exit7) cmp $7, %ebx je L(StrlcpyExit7) test $0x80, %al jnz L(Exit8) jmp L(StrlcpyExit8) .p2align 4 L(ExitHighCase2): cmp $8, %ebx jbe L(CopyFrom1To16BytesLess8Case3) test $0x01, %ah jnz L(Exit9) cmp $9, %ebx je L(StrlcpyExit9) test $0x02, %ah jnz L(Exit10) cmp $10, %ebx je L(StrlcpyExit10) test $0x04, %ah jnz L(Exit11) cmp $11, %ebx je L(StrlcpyExit11) test $0x8, %ah jnz L(Exit12) cmp $12, %ebx je L(StrlcpyExit12) test $0x10, %ah jnz L(Exit13) cmp $13, %ebx je L(StrlcpyExit13) test $0x20, %ah jnz L(Exit14) cmp $14, %ebx je L(StrlcpyExit14) test $0x40, %ah jnz L(Exit15) cmp $15, %ebx je L(StrlcpyExit15) test $0x80, %ah jnz L(Exit16) jmp L(StrlcpyExit16) CFI_PUSH(%esi) .p2align 4 L(CopyFrom1To16BytesCase2OrCase3): test %eax, %eax jnz L(CopyFrom1To16BytesCase2) .p2align 4 L(CopyFrom1To16BytesCase3): add $16, %ebx add %esi, %edx add %esi, %ecx POP (%esi) cmp $8, %ebx ja L(ExitHigh8Case3) L(CopyFrom1To16BytesLess8Case3): cmp $4, %ebx ja L(ExitHigh4Case3) cmp $1, %ebx je L(StrlcpyExit1) cmp $2, %ebx je L(StrlcpyExit2) cmp $3, %ebx je L(StrlcpyExit3) L(StrlcpyExit4): movb %bh, 3(%edx) movw (%ecx), %ax movw %ax, (%edx) movb 2(%ecx), %al movb %al, 2(%edx) lea 4(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(ExitHigh4Case3): cmp $5, %ebx je L(StrlcpyExit5) cmp $6, %ebx je L(StrlcpyExit6) cmp $7, %ebx je L(StrlcpyExit7) L(StrlcpyExit8): movb %bh, 7(%edx) movl (%ecx), %eax movl %eax, (%edx) movl 3(%ecx), %eax movl %eax, 3(%edx) lea 8(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(ExitHigh8Case3): cmp $12, %ebx ja L(ExitHigh12Case3) cmp $9, %ebx je L(StrlcpyExit9) cmp $10, %ebx je L(StrlcpyExit10) cmp $11, %ebx je L(StrlcpyExit11) L(StrlcpyExit12): movb %bh, 11(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movl 7(%ecx), %eax movl %eax, 7(%edx) lea 12(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(ExitHigh12Case3): cmp $13, %ebx je L(StrlcpyExit13) cmp $14, %ebx je L(StrlcpyExit14) cmp $15, %ebx je L(StrlcpyExit15) L(StrlcpyExit16): movb %bh, 15(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 7(%ecx), %xmm0 movlpd %xmm0, 7(%edx) lea 16(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(StrlcpyExit1): movb %bh, (%edx) lea 1(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit1): movb (%ecx), %al movb %al, (%edx) mov %ecx, %eax sub %edi, %eax RETURN1 .p2align 4 L(StrlcpyExit2): movb %bh, 1(%edx) movb (%ecx), %al movb %al, (%edx) lea 2(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit2): movw (%ecx), %ax movw %ax, (%edx) movl %edi, %eax lea 1(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(StrlcpyExit3): movb %bh, 2(%edx) movw (%ecx), %ax movw %ax, (%edx) lea 3(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit3): movw (%ecx), %ax movw %ax, (%edx) movb 2(%ecx), %al movb %al, 2(%edx) lea 2(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(StrlcpyExit5): movb %bh, 4(%edx) movl (%ecx), %eax movl %eax, (%edx) movl %edi, %eax lea 5(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit5): movl (%ecx), %eax movl %eax, (%edx) movb 4(%ecx), %al movb %al, 4(%edx) lea 4(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(StrlcpyExit6): movb %bh, 5(%edx) movl (%ecx), %eax movl %eax, (%edx) movb 4(%ecx), %al movb %al, 4(%edx) lea 6(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit6): movl (%ecx), %eax movl %eax, (%edx) movw 4(%ecx), %ax movw %ax, 4(%edx) lea 5(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(StrlcpyExit7): movb %bh, 6(%edx) movl (%ecx), %eax movl %eax, (%edx) movw 4(%ecx), %ax movw %ax, 4(%edx) lea 7(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit7): movl (%ecx), %eax movl %eax, (%edx) movl 3(%ecx), %eax movl %eax, 3(%edx) lea 6(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(StrlcpyExit9): movb %bh, 8(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) lea 9(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit9): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movb 8(%ecx), %al movb %al, 8(%edx) lea 8(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(StrlcpyExit10): movb %bh, 9(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movb 8(%ecx), %al movb %al, 8(%edx) lea 10(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit10): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movw 8(%ecx), %ax movw %ax, 8(%edx) lea 9(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(StrlcpyExit11): movb %bh, 10(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movw 8(%ecx), %ax movw %ax, 8(%edx) lea 11(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit11): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movl 7(%ecx), %eax movl %eax, 7(%edx) lea 10(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(StrlcpyExit13): movb %bh, 12(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movl 8(%ecx), %eax movl %eax, 8(%edx) lea 13(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit13): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 5(%ecx), %xmm0 movlpd %xmm0, 5(%edx) lea 12(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(StrlcpyExit14): movb %bh, 13(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 5(%ecx), %xmm0 movlpd %xmm0, 5(%edx) lea 14(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit14): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 6(%ecx), %xmm0 movlpd %xmm0, 6(%edx) lea 13(%ecx), %eax sub %edi, %eax RETURN1 .p2align 4 L(StrlcpyExit15): movb %bh, 14(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 6(%ecx), %xmm0 movlpd %xmm0, 6(%edx) lea 15(%ecx), %edx mov %edi, %ecx POP (%edi) jmp L(CalculateLengthOfSrc) CFI_PUSH (%edi) .p2align 4 L(Exit15): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 7(%ecx), %xmm0 movlpd %xmm0, 7(%edx) lea 14(%ecx), %eax sub %edi, %eax RETURN1 CFI_POP (%edi) .p2align 4 L(StrlcpyExit0): movl $0, %eax RETURN .p2align 4 L(StrncpyExit15Bytes): cmp $12, %ebx ja L(StrncpyExit15Bytes1) cmpb $0, 8(%ecx) jz L(ExitTail9) cmp $9, %ebx je L(StrlcpyExitTail9) cmpb $0, 9(%ecx) jz L(ExitTail10) cmp $10, %ebx je L(StrlcpyExitTail10) cmpb $0, 10(%ecx) jz L(ExitTail11) cmp $11, %ebx je L(StrlcpyExitTail11) cmpb $0, 11(%ecx) jz L(ExitTail12) movb %bh, 11(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movl 7(%ecx), %eax movl %eax, 7(%edx) lea 12(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(StrncpyExit15Bytes1): 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) cmp $13, %ebx je L(StrlcpyExitTail13) cmpb $0, 13(%ecx) jz L(ExitTail14) cmp $14, %ebx je L(StrlcpyExitTail14) cmpb $0, 14(%ecx) jz L(ExitTail15) movb %bh, 14(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 6(%ecx), %xmm0 movlpd %xmm0, 6(%edx) lea 15(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(StrncpyExit8Bytes): cmp $4, %ebx ja L(StrncpyExit8Bytes1) test %ebx, %ebx jz L(StrlcpyExitTail0) cmpb $0, (%ecx) jz L(ExitTail1) cmp $1, %ebx je L(StrlcpyExitTail1) cmpb $0, 1(%ecx) jz L(ExitTail2) cmp $2, %ebx je L(StrlcpyExitTail2) cmpb $0, 2(%ecx) jz L(ExitTail3) cmp $3, %ebx je L(StrlcpyExitTail3) cmpb $0, 3(%ecx) jz L(ExitTail4) movb %bh, 3(%edx) movw (%ecx), %ax movw %ax, (%edx) movb 2(%ecx), %al movb %al, 2(%edx) lea 4(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(StrncpyExit8Bytes1): 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) cmp $5, %ebx je L(StrlcpyExitTail5) cmpb $0, 5(%ecx) jz L(ExitTail6) cmp $6, %ebx je L(StrlcpyExitTail6) cmpb $0, 6(%ecx) jz L(ExitTail7) cmp $7, %ebx je L(StrlcpyExitTail7) cmpb $0, 7(%ecx) jz L(ExitTail8) movb %bh, 7(%edx) movl (%ecx), %eax movl %eax, (%edx) movl 3(%ecx), %eax movl %eax, 3(%edx) lea 8(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(StrlcpyExitTail0): mov %ecx, %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(StrlcpyExitTail1): movb %bh, (%edx) lea 1(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail1): movb (%ecx), %al movb %al, (%edx) mov $0, %eax RETURN .p2align 4 L(StrlcpyExitTail2): movb %bh, 1(%edx) movb (%ecx), %al movb %al, (%edx) lea 2(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail2): movw (%ecx), %ax movw %ax, (%edx) movl %edx, %eax mov $1, %eax RETURN .p2align 4 L(StrlcpyExitTail3): movb %bh, 2(%edx) movw (%ecx), %ax movw %ax, (%edx) lea 3(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail3): movw (%ecx), %ax movw %ax, (%edx) movb 2(%ecx), %al movb %al, 2(%edx) mov $2, %eax RETURN .p2align 4 L(ExitTail4): movl (%ecx), %eax movl %eax, (%edx) mov $3, %eax RETURN .p2align 4 L(StrlcpyExitTail5): movb %bh, 4(%edx) movl (%ecx), %eax movl %eax, (%edx) movl %edx, %eax lea 5(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail5): movl (%ecx), %eax movl %eax, (%edx) movb 4(%ecx), %al movb %al, 4(%edx) mov $4, %eax RETURN .p2align 4 L(StrlcpyExitTail6): movb %bh, 5(%edx) movl (%ecx), %eax movl %eax, (%edx) movb 4(%ecx), %al movb %al, 4(%edx) lea 6(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail6): movl (%ecx), %eax movl %eax, (%edx) movw 4(%ecx), %ax movw %ax, 4(%edx) mov $5, %eax RETURN .p2align 4 L(StrlcpyExitTail7): movb %bh, 6(%edx) movl (%ecx), %eax movl %eax, (%edx) movw 4(%ecx), %ax movw %ax, 4(%edx) lea 7(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail7): movl (%ecx), %eax movl %eax, (%edx) movl 3(%ecx), %eax movl %eax, 3(%edx) mov $6, %eax RETURN .p2align 4 L(ExitTail8): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) mov $7, %eax RETURN .p2align 4 L(StrlcpyExitTail9): movb %bh, 8(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) lea 9(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail9): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movb 8(%ecx), %al movb %al, 8(%edx) mov $8, %eax RETURN .p2align 4 L(StrlcpyExitTail10): movb %bh, 9(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movb 8(%ecx), %al movb %al, 8(%edx) lea 10(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail10): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movw 8(%ecx), %ax movw %ax, 8(%edx) mov $9, %eax RETURN .p2align 4 L(StrlcpyExitTail11): movb %bh, 10(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movw 8(%ecx), %ax movw %ax, 8(%edx) lea 11(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail11): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movl 7(%ecx), %eax movl %eax, 7(%edx) mov $10, %eax RETURN .p2align 4 L(ExitTail12): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movl 8(%ecx), %eax movl %eax, 8(%edx) mov $11, %eax RETURN .p2align 4 L(StrlcpyExitTail13): movb %bh, 12(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movl 8(%ecx), %eax movl %eax, 8(%edx) lea 13(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail13): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 5(%ecx), %xmm0 movlpd %xmm0, 5(%edx) mov $12, %eax RETURN .p2align 4 L(StrlcpyExitTail14): movb %bh, 13(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 5(%ecx), %xmm0 movlpd %xmm0, 5(%edx) lea 14(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail14): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 6(%ecx), %xmm0 movlpd %xmm0, 6(%edx) mov $13, %eax RETURN .p2align 4 L(ExitTail15): movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 7(%ecx), %xmm0 movlpd %xmm0, 7(%edx) mov $14, %eax RETURN .p2align 4 L(StrlcpyExitTail16): movb %bh, 15(%edx) movlpd (%ecx), %xmm0 movlpd %xmm0, (%edx) movlpd 7(%ecx), %xmm0 movlpd %xmm0, 7(%edx) lea 16(%ecx), %edx jmp L(CalculateLengthOfSrc) .p2align 4 L(ExitTail16): movlpd (%ecx), %xmm0 movlpd 8(%ecx), %xmm1 movlpd %xmm0, (%edx) movlpd %xmm1, 8(%edx) mov $15, %eax RETURN .p2align 4 L(CalculateLengthOfSrc): xor %eax, %eax cmpb $0, (%edx) jz L(exit_tail0) cmpb $0, 1(%edx) jz L(exit_tail1) cmpb $0, 2(%edx) jz L(exit_tail2) cmpb $0, 3(%edx) jz L(exit_tail3) cmpb $0, 4(%edx) jz L(exit_tail4) cmpb $0, 5(%edx) jz L(exit_tail5) cmpb $0, 6(%edx) jz L(exit_tail6) cmpb $0, 7(%edx) jz L(exit_tail7) cmpb $0, 8(%edx) jz L(exit_tail8) cmpb $0, 9(%edx) jz L(exit_tail9) cmpb $0, 10(%edx) jz L(exit_tail10) cmpb $0, 11(%edx) jz L(exit_tail11) cmpb $0, 12(%edx) jz L(exit_tail12) cmpb $0, 13(%edx) jz L(exit_tail13) cmpb $0, 14(%edx) jz L(exit_tail14) cmpb $0, 15(%edx) jz L(exit_tail15) pxor %xmm0, %xmm0 lea 16(%edx), %eax add $16, %ecx and $-16, %eax pcmpeqb (%eax), %xmm0 pmovmskb %xmm0, %edx pxor %xmm1, %xmm1 lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm1 pmovmskb %xmm1, %edx pxor %xmm2, %xmm2 lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm2 pmovmskb %xmm2, %edx pxor %xmm3, %xmm3 lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm3 pmovmskb %xmm3, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm0 pmovmskb %xmm0, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm1 pmovmskb %xmm1, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm2 pmovmskb %xmm2, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm3 pmovmskb %xmm3, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm0 pmovmskb %xmm0, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm1 pmovmskb %xmm1, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm2 pmovmskb %xmm2, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm3 pmovmskb %xmm3, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm0 pmovmskb %xmm0, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm1 pmovmskb %xmm1, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm2 pmovmskb %xmm2, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) pcmpeqb (%eax), %xmm3 pmovmskb %xmm3, %edx lea 16(%eax), %eax test %edx, %edx jnz L(exit) and $-0x40, %eax .p2align 4 L(aligned_64_loop): movaps (%eax), %xmm0 movaps 16(%eax), %xmm1 movaps 32(%eax), %xmm2 movaps 48(%eax), %xmm6 pminub %xmm1, %xmm0 pminub %xmm6, %xmm2 pminub %xmm0, %xmm2 pcmpeqb %xmm3, %xmm2 pmovmskb %xmm2, %edx lea 64(%eax), %eax test %edx, %edx jz L(aligned_64_loop) pcmpeqb -64(%eax), %xmm3 pmovmskb %xmm3, %edx lea 48(%ecx), %ecx test %edx, %edx jnz L(exit) pcmpeqb %xmm1, %xmm3 pmovmskb %xmm3, %edx lea -16(%ecx), %ecx test %edx, %edx jnz L(exit) pcmpeqb -32(%eax), %xmm3 pmovmskb %xmm3, %edx lea -16(%ecx), %ecx test %edx, %edx jnz L(exit) pcmpeqb %xmm6, %xmm3 pmovmskb %xmm3, %edx lea -16(%ecx), %ecx .p2align 4 L(exit): sub %ecx, %eax test %dl, %dl jz L(exit_more_8) mov %dl, %cl and $15, %cl jz L(exit_more_4) test $0x01, %dl jnz L(exit_0) test $0x02, %dl jnz L(exit_1) test $0x04, %dl jnz L(exit_2) add $3, %eax RETURN .p2align 4 L(exit_more_4): test $0x10, %dl jnz L(exit_4) test $0x20, %dl jnz L(exit_5) test $0x40, %dl jnz L(exit_6) add $7, %eax RETURN .p2align 4 L(exit_more_8): mov %dh, %ch and $15, %ch jz L(exit_more_12) test $0x01, %dh jnz L(exit_8) test $0x02, %dh jnz L(exit_9) test $0x04, %dh jnz L(exit_10) add $11, %eax RETURN .p2align 4 L(exit_more_12): test $0x10, %dh jnz L(exit_12) test $0x20, %dh jnz L(exit_13) test $0x40, %dh jnz L(exit_14) add $15, %eax L(exit_0): RETURN .p2align 4 L(exit_1): add $1, %eax RETURN L(exit_2): add $2, %eax RETURN L(exit_3): add $3, %eax RETURN L(exit_4): add $4, %eax RETURN L(exit_5): add $5, %eax RETURN L(exit_6): add $6, %eax RETURN L(exit_7): add $7, %eax RETURN L(exit_8): add $8, %eax RETURN L(exit_9): add $9, %eax RETURN L(exit_10): add $10, %eax RETURN L(exit_11): add $11, %eax RETURN L(exit_12): add $12, %eax RETURN L(exit_13): add $13, %eax RETURN L(exit_14): add $14, %eax RETURN L(exit_15): add $15, %eax RETURN L(exit_tail0): mov %edx, %eax sub %ecx, %eax RETURN .p2align 4 L(exit_tail1): lea 1(%edx), %eax sub %ecx, %eax RETURN L(exit_tail2): lea 2(%edx), %eax sub %ecx, %eax RETURN L(exit_tail3): lea 3(%edx), %eax sub %ecx, %eax RETURN L(exit_tail4): lea 4(%edx), %eax sub %ecx, %eax RETURN L(exit_tail5): lea 5(%edx), %eax sub %ecx, %eax RETURN L(exit_tail6): lea 6(%edx), %eax sub %ecx, %eax RETURN L(exit_tail7): lea 7(%edx), %eax sub %ecx, %eax RETURN L(exit_tail8): lea 8(%edx), %eax sub %ecx, %eax RETURN L(exit_tail9): lea 9(%edx), %eax sub %ecx, %eax RETURN L(exit_tail10): lea 10(%edx), %eax sub %ecx, %eax RETURN L(exit_tail11): lea 11(%edx), %eax sub %ecx, %eax RETURN L(exit_tail12): lea 12(%edx), %eax sub %ecx, %eax RETURN L(exit_tail13): lea 13(%edx), %eax sub %ecx, %eax RETURN L(exit_tail14): lea 14(%edx), %eax sub %ecx, %eax RETURN L(exit_tail15): lea 15(%edx), %eax sub %ecx, %eax RETURN END (STRCPY)