| /* |
| 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. |
| */ |
| |
| /* Optimized strlcat with SSSE3 */ |
| |
| #ifndef cfi_startproc |
| # define cfi_startproc .cfi_startproc |
| #endif |
| |
| #ifndef cfi_endproc |
| # define cfi_endproc .cfi_endproc |
| #endif |
| |
| #ifndef cfi_rel_offset |
| # define cfi_rel_offset(reg, off) .cfi_rel_offset reg, off |
| #endif |
| |
| #ifndef cfi_restore |
| # define cfi_restore(reg) .cfi_restore reg |
| #endif |
| |
| #ifndef cfi_adjust_cfa_offset |
| # define cfi_adjust_cfa_offset(off) .cfi_adjust_cfa_offset off |
| #endif |
| |
| #ifndef ENTRY |
| # define ENTRY(name) \ |
| .type name, @function; \ |
| .globl name; \ |
| .p2align 4; \ |
| name: \ |
| cfi_startproc |
| #endif |
| |
| #ifndef END |
| # define END(name) \ |
| cfi_endproc; \ |
| .size name, .-name |
| #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) |
| #define L(label) .L##Prolog_##label |
| |
| #define DST 4 |
| #define SRC DST+8 |
| #define LEN SRC+4 |
| |
| .text |
| ENTRY (strlcat) |
| mov DST(%esp), %edx |
| PUSH (%ebx) |
| mov LEN(%esp), %ebx |
| sub $4, %ebx |
| jbe L(len_less4_prolog) |
| |
| #define RETURN jmp L(StrcpyStep) |
| #define edi ebx |
| |
| #define USE_AS_STRNLEN |
| #define USE_AS_STRCAT |
| #define USE_AS_STRLCAT |
| |
| #include "sse2-strlen-atom.S" |
| |
| .p2align 4 |
| L(StrcpyStep): |
| |
| #undef edi |
| #undef L |
| #define L(label) .L##label |
| #undef RETURN |
| #define RETURN POP (%ebx); ret; CFI_PUSH (%ebx); |
| #define RETURN1 POP (%edi); POP (%ebx); ret; CFI_PUSH (%ebx); CFI_PUSH (%edi) |
| |
| movl SRC(%esp), %ecx |
| movl LEN(%esp), %ebx |
| |
| cmp %eax, %ebx |
| je L(CalculateLengthOfSrcProlog) |
| sub %eax, %ebx |
| |
| test %ebx, %ebx |
| jz L(CalculateLengthOfSrcProlog) |
| |
| mov DST + 4(%esp), %edx |
| |
| PUSH (%edi) |
| add %eax, %edx |
| mov %ecx, %edi |
| sub %eax, %edi |
| |
| cmp $8, %ebx |
| jbe L(StrncpyExit8Bytes) |
| |
| cmpb $0, (%ecx) |
| jz L(Exit1) |
| cmpb $0, 1(%ecx) |
| jz L(Exit2) |
| cmpb $0, 2(%ecx) |
| jz L(Exit3) |
| cmpb $0, 3(%ecx) |
| jz L(Exit4) |
| cmpb $0, 4(%ecx) |
| jz L(Exit5) |
| cmpb $0, 5(%ecx) |
| jz L(Exit6) |
| cmpb $0, 6(%ecx) |
| jz L(Exit7) |
| cmpb $0, 7(%ecx) |
| jz L(Exit8) |
| cmp $16, %ebx |
| jb L(StrncpyExit15Bytes) |
| cmpb $0, 8(%ecx) |
| jz L(Exit9) |
| cmpb $0, 9(%ecx) |
| jz L(Exit10) |
| cmpb $0, 10(%ecx) |
| jz L(Exit11) |
| cmpb $0, 11(%ecx) |
| jz L(Exit12) |
| cmpb $0, 12(%ecx) |
| jz L(Exit13) |
| cmpb $0, 13(%ecx) |
| jz L(Exit14) |
| cmpb $0, 14(%ecx) |
| jz L(Exit15) |
| cmpb $0, 15(%ecx) |
| jz L(Exit16) |
| cmp $16, %ebx |
| je L(StrlcpyExit16) |
| |
| #define USE_AS_STRNCPY |
| #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 |
| |
| .p2align 4 |
| L(StrncpyExit15Bytes): |
| cmp $12, %ebx |
| ja L(StrncpyExit15Bytes1) |
| |
| cmpb $0, 8(%ecx) |
| jz L(Exit9) |
| cmp $9, %ebx |
| je L(StrlcpyExit9) |
| |
| cmpb $0, 9(%ecx) |
| jz L(Exit10) |
| cmp $10, %ebx |
| je L(StrlcpyExit10) |
| |
| cmpb $0, 10(%ecx) |
| jz L(Exit11) |
| cmp $11, %ebx |
| je L(StrlcpyExit11) |
| |
| cmpb $0, 11(%ecx) |
| jz L(Exit12) |
| jmp L(StrlcpyExit12) |
| |
| .p2align 4 |
| L(StrncpyExit15Bytes1): |
| cmpb $0, 8(%ecx) |
| jz L(Exit9) |
| cmpb $0, 9(%ecx) |
| jz L(Exit10) |
| cmpb $0, 10(%ecx) |
| jz L(Exit11) |
| cmpb $0, 11(%ecx) |
| jz L(Exit12) |
| |
| cmpb $0, 12(%ecx) |
| jz L(Exit13) |
| cmp $13, %ebx |
| je L(StrlcpyExit13) |
| |
| cmpb $0, 13(%ecx) |
| jz L(Exit14) |
| cmp $14, %ebx |
| je L(StrlcpyExit14) |
| |
| cmpb $0, 14(%ecx) |
| jz L(Exit15) |
| jmp L(StrlcpyExit15) |
| |
| .p2align 4 |
| L(StrncpyExit8Bytes): |
| cmp $4, %ebx |
| ja L(StrncpyExit8Bytes1) |
| |
| cmpb $0, (%ecx) |
| jz L(Exit1) |
| cmp $1, %ebx |
| je L(StrlcpyExit1) |
| |
| cmpb $0, 1(%ecx) |
| jz L(Exit2) |
| cmp $2, %ebx |
| je L(StrlcpyExit2) |
| |
| cmpb $0, 2(%ecx) |
| jz L(Exit3) |
| cmp $3, %ebx |
| je L(StrlcpyExit3) |
| |
| cmpb $0, 3(%ecx) |
| jz L(Exit4) |
| jmp L(StrlcpyExit4) |
| |
| .p2align 4 |
| L(StrncpyExit8Bytes1): |
| cmpb $0, (%ecx) |
| jz L(Exit1) |
| cmpb $0, 1(%ecx) |
| jz L(Exit2) |
| cmpb $0, 2(%ecx) |
| jz L(Exit3) |
| cmpb $0, 3(%ecx) |
| jz L(Exit4) |
| |
| cmpb $0, 4(%ecx) |
| jz L(Exit5) |
| cmp $5, %ebx |
| je L(StrlcpyExit5) |
| |
| cmpb $0, 5(%ecx) |
| jz L(Exit6) |
| cmp $6, %ebx |
| je L(StrlcpyExit6) |
| |
| cmpb $0, 6(%ecx) |
| jz L(Exit7) |
| cmp $7, %ebx |
| je L(StrlcpyExit7) |
| |
| cmpb $0, 7(%ecx) |
| jz L(Exit8) |
| jmp L(StrlcpyExit8) |
| |
| CFI_POP (%edi) |
| |
| |
| .p2align 4 |
| L(Prolog_return_start_len): |
| movl LEN(%esp), %ebx |
| movl SRC(%esp), %ecx |
| L(CalculateLengthOfSrcProlog): |
| mov %ecx, %edx |
| sub %ebx, %ecx |
| |
| .p2align 4 |
| L(CalculateLengthOfSrc): |
| 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 (strlcat) |
