| Bruce Beare | 8ff1a27 | 2010-03-04 11:03:37 -0800 | [diff] [blame] | 1 | /* | 
|  | 2 | Copyright (c) 2010, Intel Corporation | 
|  | 3 | All rights reserved. | 
|  | 4 |  | 
|  | 5 | Redistribution and use in source and binary forms, with or without | 
|  | 6 | modification, are permitted provided that the following conditions are met: | 
|  | 7 |  | 
|  | 8 | * Redistributions of source code must retain the above copyright notice, | 
|  | 9 | * this list of conditions and the following disclaimer. | 
|  | 10 |  | 
|  | 11 | * Redistributions in binary form must reproduce the above copyright notice, | 
|  | 12 | * this list of conditions and the following disclaimer in the documentation | 
|  | 13 | * and/or other materials provided with the distribution. | 
|  | 14 |  | 
|  | 15 | * Neither the name of Intel Corporation nor the names of its contributors | 
|  | 16 | * may be used to endorse or promote products derived from this software | 
|  | 17 | * without specific prior written permission. | 
|  | 18 |  | 
|  | 19 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND | 
|  | 20 | ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | 
|  | 21 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | 
|  | 22 | DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR | 
|  | 23 | ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 
|  | 24 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 
|  | 25 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | 
|  | 26 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 
|  | 27 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | 
|  | 28 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 
|  | 29 | */ | 
|  | 30 |  | 
|  | 31 | #ifndef L | 
|  | 32 | # define L(label)	.L##label | 
|  | 33 | #endif | 
|  | 34 |  | 
|  | 35 | #ifndef cfi_startproc | 
|  | 36 | # define cfi_startproc			.cfi_startproc | 
|  | 37 | #endif | 
|  | 38 |  | 
|  | 39 | #ifndef cfi_endproc | 
|  | 40 | # define cfi_endproc			.cfi_endproc | 
|  | 41 | #endif | 
|  | 42 |  | 
|  | 43 | #ifndef cfi_rel_offset | 
|  | 44 | # define cfi_rel_offset(reg, off)	.cfi_rel_offset reg, off | 
|  | 45 | #endif | 
|  | 46 |  | 
|  | 47 | #ifndef cfi_restore | 
| Bruce Beare | 124a542 | 2010-10-11 12:24:41 -0700 | [diff] [blame] | 48 | # define cfi_restore(reg)		.cfi_restore reg | 
| Bruce Beare | 8ff1a27 | 2010-03-04 11:03:37 -0800 | [diff] [blame] | 49 | #endif | 
|  | 50 |  | 
|  | 51 | #ifndef cfi_adjust_cfa_offset | 
|  | 52 | # define cfi_adjust_cfa_offset(off)	.cfi_adjust_cfa_offset off | 
|  | 53 | #endif | 
|  | 54 |  | 
| Bruce Beare | 124a542 | 2010-10-11 12:24:41 -0700 | [diff] [blame] | 55 | #ifndef cfi_remember_state | 
|  | 56 | # define cfi_remember_state		.cfi_remember_state | 
|  | 57 | #endif | 
|  | 58 |  | 
|  | 59 | #ifndef cfi_restore_state | 
|  | 60 | # define cfi_restore_state		.cfi_restore_state | 
|  | 61 | #endif | 
|  | 62 |  | 
| Bruce Beare | 8ff1a27 | 2010-03-04 11:03:37 -0800 | [diff] [blame] | 63 | #ifndef ENTRY | 
|  | 64 | # define ENTRY(name)			\ | 
|  | 65 | .type name,  @function; 	\ | 
|  | 66 | .globl name;			\ | 
|  | 67 | .p2align 4;			\ | 
|  | 68 | name:					\ | 
|  | 69 | cfi_startproc | 
|  | 70 | #endif | 
|  | 71 |  | 
|  | 72 | #ifndef END | 
|  | 73 | # define END(name)			\ | 
|  | 74 | cfi_endproc;			\ | 
|  | 75 | .size name, .-name | 
|  | 76 | #endif | 
|  | 77 |  | 
|  | 78 | #define CFI_PUSH(REG)						\ | 
|  | 79 | cfi_adjust_cfa_offset (4);					\ | 
|  | 80 | cfi_rel_offset (REG, 0) | 
|  | 81 |  | 
|  | 82 | #define CFI_POP(REG)						\ | 
|  | 83 | cfi_adjust_cfa_offset (-4);					\ | 
|  | 84 | cfi_restore (REG) | 
|  | 85 |  | 
|  | 86 | #define PUSH(REG)	pushl REG; CFI_PUSH (REG) | 
|  | 87 | #define POP(REG)	popl REG; CFI_POP (REG) | 
|  | 88 |  | 
|  | 89 | #ifndef USE_AS_STRNCMP | 
|  | 90 | # define STR1		4 | 
|  | 91 | # define STR2		STR1+4 | 
|  | 92 | # define RETURN		ret | 
|  | 93 |  | 
|  | 94 | # define UPDATE_STRNCMP_COUNTER | 
|  | 95 | #else | 
|  | 96 | # define STR1		8 | 
|  | 97 | # define STR2		STR1+4 | 
|  | 98 | # define CNT		STR2+4 | 
|  | 99 | # define RETURN		POP (%ebp); ret; CFI_PUSH (%ebp) | 
|  | 100 |  | 
|  | 101 | # define UPDATE_STRNCMP_COUNTER				\ | 
|  | 102 | /* calculate left number to compare */		\ | 
|  | 103 | mov	$16, %esi;				\ | 
|  | 104 | sub	%ecx, %esi;				\ | 
|  | 105 | cmp	%esi, %ebp;				\ | 
|  | 106 | jbe	L(more8byteseq);			\ | 
|  | 107 | sub	%esi, %ebp | 
|  | 108 | #endif | 
|  | 109 |  | 
|  | 110 | .section .text.ssse3,"ax",@progbits | 
|  | 111 | ENTRY (ssse3_strcmp_latest) | 
|  | 112 | #ifdef USE_AS_STRNCMP | 
|  | 113 | PUSH	(%ebp) | 
|  | 114 | #endif | 
|  | 115 | movl	STR1(%esp), %edx | 
|  | 116 | movl	STR2(%esp), %eax | 
|  | 117 | #ifdef USE_AS_STRNCMP | 
|  | 118 | movl	CNT(%esp), %ebp | 
|  | 119 | cmp	$16, %ebp | 
|  | 120 | jb	L(less16bytes_sncmp) | 
|  | 121 | jmp	L(more16bytes) | 
|  | 122 | #endif | 
|  | 123 |  | 
|  | 124 | movzbl	(%eax), %ecx | 
|  | 125 | cmpb	%cl, (%edx) | 
|  | 126 | jne	L(neq) | 
|  | 127 | cmpl	$0, %ecx | 
|  | 128 | je	L(eq) | 
|  | 129 |  | 
|  | 130 | movzbl	1(%eax), %ecx | 
|  | 131 | cmpb	%cl, 1(%edx) | 
|  | 132 | jne	L(neq) | 
|  | 133 | cmpl	$0, %ecx | 
|  | 134 | je	L(eq) | 
|  | 135 |  | 
|  | 136 | movzbl	2(%eax), %ecx | 
|  | 137 | cmpb	%cl, 2(%edx) | 
|  | 138 | jne	L(neq) | 
|  | 139 | cmpl	$0, %ecx | 
|  | 140 | je	L(eq) | 
|  | 141 |  | 
|  | 142 | movzbl	3(%eax), %ecx | 
|  | 143 | cmpb	%cl, 3(%edx) | 
|  | 144 | jne	L(neq) | 
|  | 145 | cmpl	$0, %ecx | 
|  | 146 | je	L(eq) | 
|  | 147 |  | 
|  | 148 | movzbl	4(%eax), %ecx | 
|  | 149 | cmpb	%cl, 4(%edx) | 
|  | 150 | jne	L(neq) | 
|  | 151 | cmpl	$0, %ecx | 
|  | 152 | je	L(eq) | 
|  | 153 |  | 
|  | 154 | movzbl	5(%eax), %ecx | 
|  | 155 | cmpb	%cl, 5(%edx) | 
|  | 156 | jne	L(neq) | 
|  | 157 | cmpl	$0, %ecx | 
|  | 158 | je	L(eq) | 
|  | 159 |  | 
|  | 160 | movzbl	6(%eax), %ecx | 
|  | 161 | cmpb	%cl, 6(%edx) | 
|  | 162 | jne	L(neq) | 
|  | 163 | cmpl	$0, %ecx | 
|  | 164 | je	L(eq) | 
|  | 165 |  | 
|  | 166 | movzbl	7(%eax), %ecx | 
|  | 167 | cmpb	%cl, 7(%edx) | 
|  | 168 | jne	L(neq) | 
|  | 169 | cmpl	$0, %ecx | 
|  | 170 | je	L(eq) | 
|  | 171 |  | 
|  | 172 | add	$8, %edx | 
|  | 173 | add	$8, %eax | 
|  | 174 | #ifdef USE_AS_STRNCMP | 
|  | 175 | cmp	$8, %ebp | 
|  | 176 | lea	-8(%ebp), %ebp | 
|  | 177 | je	L(eq) | 
|  | 178 | L(more16bytes): | 
|  | 179 | #endif | 
|  | 180 | movl	%edx, %ecx | 
|  | 181 | and	$0xfff, %ecx | 
|  | 182 | cmp	$0xff0, %ecx | 
|  | 183 | ja	L(crosspage) | 
|  | 184 | mov	%eax, %ecx | 
|  | 185 | and	$0xfff, %ecx | 
|  | 186 | cmp	$0xff0, %ecx | 
|  | 187 | ja	L(crosspage) | 
|  | 188 | pxor	%xmm0, %xmm0 | 
|  | 189 | movlpd	(%eax), %xmm1 | 
|  | 190 | movlpd	(%edx), %xmm2 | 
|  | 191 | movhpd	8(%eax), %xmm1 | 
|  | 192 | movhpd	8(%edx), %xmm2 | 
|  | 193 | pcmpeqb	%xmm1, %xmm0 | 
|  | 194 | pcmpeqb	%xmm2, %xmm1 | 
|  | 195 | psubb	%xmm0, %xmm1 | 
|  | 196 | pmovmskb %xmm1, %ecx | 
|  | 197 | sub	$0xffff, %ecx | 
|  | 198 | jnz	L(less16bytes) | 
|  | 199 | #ifdef USE_AS_STRNCMP | 
|  | 200 | cmp	$16, %ebp | 
|  | 201 | lea	-16(%ebp), %ebp | 
|  | 202 | jbe	L(eq) | 
|  | 203 | #endif | 
|  | 204 | add	$16, %eax | 
|  | 205 | add	$16, %edx | 
|  | 206 |  | 
|  | 207 | L(crosspage): | 
|  | 208 |  | 
|  | 209 | PUSH	(%ebx) | 
|  | 210 | PUSH	(%edi) | 
|  | 211 | PUSH	(%esi) | 
| Bruce Beare | 124a542 | 2010-10-11 12:24:41 -0700 | [diff] [blame] | 212 | #ifdef USE_AS_STRNCMP | 
|  | 213 | cfi_remember_state | 
|  | 214 | #endif | 
| Bruce Beare | 8ff1a27 | 2010-03-04 11:03:37 -0800 | [diff] [blame] | 215 |  | 
|  | 216 | movl	%edx, %edi | 
|  | 217 | movl	%eax, %ecx | 
|  | 218 | and	$0xf, %ecx | 
|  | 219 | and	$0xf, %edi | 
|  | 220 | xor	%ecx, %eax | 
|  | 221 | xor	%edi, %edx | 
|  | 222 | xor	%ebx, %ebx | 
|  | 223 | cmp	%edi, %ecx | 
|  | 224 | je	L(ashr_0) | 
|  | 225 | ja	L(bigger) | 
|  | 226 | or	$0x20, %ebx | 
|  | 227 | xchg	%edx, %eax | 
|  | 228 | xchg	%ecx, %edi | 
|  | 229 | L(bigger): | 
|  | 230 | lea	15(%edi), %edi | 
|  | 231 | sub	%ecx, %edi | 
|  | 232 | cmp	$8, %edi | 
|  | 233 | jle	L(ashr_less_8) | 
|  | 234 | cmp	$14, %edi | 
|  | 235 | je	L(ashr_15) | 
|  | 236 | cmp	$13, %edi | 
|  | 237 | je	L(ashr_14) | 
|  | 238 | cmp	$12, %edi | 
|  | 239 | je	L(ashr_13) | 
|  | 240 | cmp	$11, %edi | 
|  | 241 | je	L(ashr_12) | 
|  | 242 | cmp	$10, %edi | 
|  | 243 | je	L(ashr_11) | 
|  | 244 | cmp	$9, %edi | 
|  | 245 | je	L(ashr_10) | 
|  | 246 | L(ashr_less_8): | 
|  | 247 | je	L(ashr_9) | 
|  | 248 | cmp	$7, %edi | 
|  | 249 | je	L(ashr_8) | 
|  | 250 | cmp	$6, %edi | 
|  | 251 | je	L(ashr_7) | 
|  | 252 | cmp	$5, %edi | 
|  | 253 | je	L(ashr_6) | 
|  | 254 | cmp	$4, %edi | 
|  | 255 | je	L(ashr_5) | 
|  | 256 | cmp	$3, %edi | 
|  | 257 | je	L(ashr_4) | 
|  | 258 | cmp	$2, %edi | 
|  | 259 | je	L(ashr_3) | 
|  | 260 | cmp	$1, %edi | 
|  | 261 | je	L(ashr_2) | 
|  | 262 | cmp	$0, %edi | 
|  | 263 | je	L(ashr_1) | 
|  | 264 |  | 
|  | 265 | /* | 
|  | 266 | * The following cases will be handled by ashr_0 | 
|  | 267 | *  ecx(offset of esi)  eax(offset of edi)  relative offset  corresponding case | 
|  | 268 | *        n(0~15)            n(0~15)           15(15+ n-n)         ashr_0 | 
|  | 269 | */ | 
|  | 270 | .p2align 4 | 
|  | 271 | L(ashr_0): | 
|  | 272 | mov	$0xffff, %esi | 
|  | 273 | movdqa	(%eax), %xmm1 | 
|  | 274 | pxor	%xmm0, %xmm0 | 
|  | 275 | pcmpeqb	%xmm1, %xmm0 | 
|  | 276 | pcmpeqb	(%edx), %xmm1 | 
|  | 277 | psubb	%xmm0, %xmm1 | 
|  | 278 | pmovmskb %xmm1, %edi | 
|  | 279 | shr	%cl, %esi | 
|  | 280 | shr	%cl, %edi | 
|  | 281 | sub	%edi, %esi | 
|  | 282 | mov	%ecx, %edi | 
|  | 283 | jne	L(less32bytes) | 
|  | 284 | UPDATE_STRNCMP_COUNTER | 
|  | 285 | mov	$0x10, %ebx | 
|  | 286 | mov	$0x10, %ecx | 
|  | 287 | pxor	%xmm0, %xmm0 | 
|  | 288 | .p2align 4 | 
|  | 289 | L(loop_ashr_0): | 
|  | 290 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 291 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 292 |  | 
|  | 293 | pcmpeqb	%xmm1, %xmm0 | 
|  | 294 | pcmpeqb	%xmm2, %xmm1 | 
|  | 295 | psubb	%xmm0, %xmm1 | 
|  | 296 | pmovmskb %xmm1, %esi | 
|  | 297 | sub	$0xffff, %esi | 
|  | 298 | jnz	L(exit) | 
|  | 299 | #ifdef USE_AS_STRNCMP | 
|  | 300 | cmp	$16, %ebp | 
|  | 301 | lea	-16(%ebp), %ebp | 
|  | 302 | jbe	L(more8byteseq) | 
|  | 303 | #endif | 
|  | 304 | add	$16, %ecx | 
|  | 305 | jmp	L(loop_ashr_0) | 
|  | 306 |  | 
|  | 307 | /* | 
|  | 308 | * The following cases will be handled by ashr_1 | 
|  | 309 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 310 | *        n(15)            n -15            0(15 +(n-15) - n)         ashr_1 | 
|  | 311 | */ | 
|  | 312 | .p2align 4 | 
|  | 313 | L(ashr_1): | 
|  | 314 | mov	$0xffff, %esi | 
|  | 315 | pxor	%xmm0, %xmm0 | 
|  | 316 | movdqa	(%edx), %xmm2 | 
|  | 317 | movdqa	(%eax), %xmm1 | 
|  | 318 | pcmpeqb	%xmm1, %xmm0 | 
|  | 319 | pslldq	$15, %xmm2 | 
|  | 320 | pcmpeqb	%xmm1, %xmm2 | 
|  | 321 | psubb	%xmm0, %xmm2 | 
|  | 322 | pmovmskb %xmm2, %edi | 
|  | 323 | shr	%cl, %esi | 
|  | 324 | shr	%cl, %edi | 
|  | 325 | sub	%edi, %esi | 
|  | 326 | lea	-15(%ecx), %edi | 
|  | 327 | jnz	L(less32bytes) | 
|  | 328 |  | 
|  | 329 | UPDATE_STRNCMP_COUNTER | 
|  | 330 |  | 
|  | 331 | movdqa	(%edx), %xmm3 | 
|  | 332 | pxor	%xmm0, %xmm0 | 
|  | 333 | mov	$16, %ecx | 
|  | 334 | or	$1, %ebx | 
|  | 335 | lea	1(%edx), %edi | 
|  | 336 | and	$0xfff, %edi | 
|  | 337 | sub	$0x1000, %edi | 
|  | 338 |  | 
|  | 339 | .p2align 4 | 
|  | 340 | L(loop_ashr_1): | 
|  | 341 | add	$16, %edi | 
|  | 342 | jg	L(nibble_ashr_1) | 
|  | 343 |  | 
|  | 344 | L(gobble_ashr_1): | 
|  | 345 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 346 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 347 | movdqa	%xmm2, %xmm4 | 
|  | 348 |  | 
|  | 349 | palignr	$1, %xmm3, %xmm2 | 
|  | 350 |  | 
|  | 351 | pcmpeqb	%xmm1, %xmm0 | 
|  | 352 | pcmpeqb	%xmm2, %xmm1 | 
|  | 353 | psubb	%xmm0, %xmm1 | 
|  | 354 | pmovmskb %xmm1, %esi | 
|  | 355 | sub	$0xffff, %esi | 
|  | 356 | jnz	L(exit) | 
|  | 357 | #ifdef USE_AS_STRNCMP | 
|  | 358 | cmp	$16, %ebp | 
|  | 359 | lea	-16(%ebp), %ebp | 
|  | 360 | jbe	L(more8byteseq) | 
|  | 361 | #endif | 
|  | 362 |  | 
|  | 363 | add	$16, %ecx | 
|  | 364 | movdqa	%xmm4, %xmm3 | 
|  | 365 |  | 
|  | 366 | add	$16, %edi | 
|  | 367 | jg	L(nibble_ashr_1) | 
|  | 368 |  | 
|  | 369 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 370 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 371 | movdqa	%xmm2, %xmm4 | 
|  | 372 |  | 
|  | 373 | palignr	$1, %xmm3, %xmm2 | 
|  | 374 |  | 
|  | 375 | pcmpeqb	%xmm1, %xmm0 | 
|  | 376 | pcmpeqb	%xmm2, %xmm1 | 
|  | 377 | psubb	%xmm0, %xmm1 | 
|  | 378 | pmovmskb %xmm1, %esi | 
|  | 379 | sub	$0xffff, %esi | 
|  | 380 | jnz	L(exit) | 
|  | 381 |  | 
|  | 382 | #ifdef USE_AS_STRNCMP | 
|  | 383 | cmp	$16, %ebp | 
|  | 384 | lea	-16(%ebp), %ebp | 
|  | 385 | jbe	L(more8byteseq) | 
|  | 386 | #endif | 
|  | 387 | add	$16, %ecx | 
|  | 388 | movdqa	%xmm4, %xmm3 | 
|  | 389 | jmp	L(loop_ashr_1) | 
|  | 390 |  | 
|  | 391 | .p2align 4 | 
|  | 392 | L(nibble_ashr_1): | 
|  | 393 | pcmpeqb	%xmm3, %xmm0 | 
|  | 394 | pmovmskb %xmm0, %esi | 
|  | 395 | test	$0xfffe, %esi | 
|  | 396 | jnz	L(ashr_1_exittail) | 
|  | 397 |  | 
|  | 398 | #ifdef USE_AS_STRNCMP | 
|  | 399 | cmp	$15, %ebp | 
|  | 400 | jbe	L(ashr_1_exittail) | 
|  | 401 | #endif | 
|  | 402 | pxor	%xmm0, %xmm0 | 
|  | 403 | sub	$0x1000, %edi | 
|  | 404 | jmp	L(gobble_ashr_1) | 
|  | 405 |  | 
|  | 406 | .p2align 4 | 
|  | 407 | L(ashr_1_exittail): | 
|  | 408 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 409 | psrldq	$1, %xmm0 | 
|  | 410 | psrldq	$1, %xmm3 | 
|  | 411 | jmp	L(aftertail) | 
|  | 412 |  | 
|  | 413 | /* | 
|  | 414 | * The following cases will be handled by ashr_2 | 
|  | 415 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 416 | *        n(14~15)            n -14            1(15 +(n-14) - n)         ashr_2 | 
|  | 417 | */ | 
|  | 418 | .p2align 4 | 
|  | 419 | L(ashr_2): | 
|  | 420 | mov	$0xffff, %esi | 
|  | 421 | pxor	%xmm0, %xmm0 | 
|  | 422 | movdqa	(%edx), %xmm2 | 
|  | 423 | movdqa	(%eax), %xmm1 | 
|  | 424 | pcmpeqb	%xmm1, %xmm0 | 
|  | 425 | pslldq	$14, %xmm2 | 
|  | 426 | pcmpeqb	%xmm1, %xmm2 | 
|  | 427 | psubb	%xmm0, %xmm2 | 
|  | 428 | pmovmskb %xmm2, %edi | 
|  | 429 | shr	%cl, %esi | 
|  | 430 | shr	%cl, %edi | 
|  | 431 | sub	%edi, %esi | 
|  | 432 | lea	-14(%ecx), %edi | 
|  | 433 | jnz	L(less32bytes) | 
|  | 434 |  | 
|  | 435 | UPDATE_STRNCMP_COUNTER | 
|  | 436 |  | 
|  | 437 | movdqa	(%edx), %xmm3 | 
|  | 438 | pxor	%xmm0, %xmm0 | 
|  | 439 | mov	$16, %ecx | 
|  | 440 | or	$2, %ebx | 
|  | 441 | lea	2(%edx), %edi | 
|  | 442 | and	$0xfff, %edi | 
|  | 443 | sub	$0x1000, %edi | 
|  | 444 |  | 
|  | 445 | .p2align 4 | 
|  | 446 | L(loop_ashr_2): | 
|  | 447 | add	$16, %edi | 
|  | 448 | jg	L(nibble_ashr_2) | 
|  | 449 |  | 
|  | 450 | L(gobble_ashr_2): | 
|  | 451 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 452 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 453 | movdqa	%xmm2, %xmm4 | 
|  | 454 |  | 
|  | 455 | palignr	$2, %xmm3, %xmm2 | 
|  | 456 |  | 
|  | 457 | pcmpeqb	%xmm1, %xmm0 | 
|  | 458 | pcmpeqb	%xmm2, %xmm1 | 
|  | 459 | psubb	%xmm0, %xmm1 | 
|  | 460 | pmovmskb %xmm1, %esi | 
|  | 461 | sub	$0xffff, %esi | 
|  | 462 | jnz	L(exit) | 
|  | 463 |  | 
|  | 464 | #ifdef USE_AS_STRNCMP | 
|  | 465 | cmp	$16, %ebp | 
|  | 466 | lea	-16(%ebp), %ebp | 
|  | 467 | jbe	L(more8byteseq) | 
|  | 468 | #endif | 
|  | 469 | add	$16, %ecx | 
|  | 470 | movdqa	%xmm4, %xmm3 | 
|  | 471 |  | 
|  | 472 | add	$16, %edi | 
|  | 473 | jg	L(nibble_ashr_2) | 
|  | 474 |  | 
|  | 475 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 476 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 477 | movdqa	%xmm2, %xmm4 | 
|  | 478 |  | 
|  | 479 | palignr	$2, %xmm3, %xmm2 | 
|  | 480 |  | 
|  | 481 | pcmpeqb	%xmm1, %xmm0 | 
|  | 482 | pcmpeqb	%xmm2, %xmm1 | 
|  | 483 | psubb	%xmm0, %xmm1 | 
|  | 484 | pmovmskb %xmm1, %esi | 
|  | 485 | sub	$0xffff, %esi | 
|  | 486 | jnz	L(exit) | 
|  | 487 |  | 
|  | 488 | #ifdef USE_AS_STRNCMP | 
|  | 489 | cmp	$16, %ebp | 
|  | 490 | lea	-16(%ebp), %ebp | 
|  | 491 | jbe	L(more8byteseq) | 
|  | 492 | #endif | 
|  | 493 | add	$16, %ecx | 
|  | 494 | movdqa	%xmm4, %xmm3 | 
|  | 495 | jmp	L(loop_ashr_2) | 
|  | 496 |  | 
|  | 497 | .p2align 4 | 
|  | 498 | L(nibble_ashr_2): | 
|  | 499 | pcmpeqb	%xmm3, %xmm0 | 
|  | 500 | pmovmskb %xmm0, %esi | 
|  | 501 | test	$0xfffc, %esi | 
|  | 502 | jnz	L(ashr_2_exittail) | 
|  | 503 |  | 
|  | 504 | #ifdef USE_AS_STRNCMP | 
|  | 505 | cmp	$14, %ebp | 
|  | 506 | jbe	L(ashr_2_exittail) | 
|  | 507 | #endif | 
|  | 508 |  | 
|  | 509 | pxor	%xmm0, %xmm0 | 
|  | 510 | sub	$0x1000, %edi | 
|  | 511 | jmp	L(gobble_ashr_2) | 
|  | 512 |  | 
|  | 513 | .p2align 4 | 
|  | 514 | L(ashr_2_exittail): | 
|  | 515 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 516 | psrldq	$2, %xmm0 | 
|  | 517 | psrldq	$2, %xmm3 | 
|  | 518 | jmp	L(aftertail) | 
|  | 519 |  | 
|  | 520 | /* | 
|  | 521 | * The following cases will be handled by ashr_3 | 
|  | 522 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 523 | *        n(13~15)            n -13            2(15 +(n-13) - n)         ashr_3 | 
|  | 524 | */ | 
|  | 525 | .p2align 4 | 
|  | 526 | L(ashr_3): | 
|  | 527 | mov	$0xffff, %esi | 
|  | 528 | pxor	%xmm0, %xmm0 | 
|  | 529 | movdqa	(%edx), %xmm2 | 
|  | 530 | movdqa	(%eax), %xmm1 | 
|  | 531 | pcmpeqb	%xmm1, %xmm0 | 
|  | 532 | pslldq	$13, %xmm2 | 
|  | 533 | pcmpeqb	%xmm1, %xmm2 | 
|  | 534 | psubb	%xmm0, %xmm2 | 
|  | 535 | pmovmskb %xmm2, %edi | 
|  | 536 | shr	%cl, %esi | 
|  | 537 | shr	%cl, %edi | 
|  | 538 | sub	%edi, %esi | 
|  | 539 | lea	-13(%ecx), %edi | 
|  | 540 | jnz	L(less32bytes) | 
|  | 541 |  | 
|  | 542 | UPDATE_STRNCMP_COUNTER | 
|  | 543 |  | 
|  | 544 | movdqa	(%edx), %xmm3 | 
|  | 545 | pxor	%xmm0, %xmm0 | 
|  | 546 | mov	$16, %ecx | 
|  | 547 | or	$3, %ebx | 
|  | 548 | lea	3(%edx), %edi | 
|  | 549 | and	$0xfff, %edi | 
|  | 550 | sub	$0x1000, %edi | 
|  | 551 |  | 
|  | 552 | .p2align 4 | 
|  | 553 | L(loop_ashr_3): | 
|  | 554 | add	$16, %edi | 
|  | 555 | jg	L(nibble_ashr_3) | 
|  | 556 |  | 
|  | 557 | L(gobble_ashr_3): | 
|  | 558 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 559 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 560 | movdqa	%xmm2, %xmm4 | 
|  | 561 |  | 
|  | 562 | palignr	$3, %xmm3, %xmm2 | 
|  | 563 |  | 
|  | 564 | pcmpeqb	%xmm1, %xmm0 | 
|  | 565 | pcmpeqb	%xmm2, %xmm1 | 
|  | 566 | psubb	%xmm0, %xmm1 | 
|  | 567 | pmovmskb %xmm1, %esi | 
|  | 568 | sub	$0xffff, %esi | 
|  | 569 | jnz	L(exit) | 
|  | 570 |  | 
|  | 571 | #ifdef USE_AS_STRNCMP | 
|  | 572 | cmp	$16, %ebp | 
|  | 573 | lea	-16(%ebp), %ebp | 
|  | 574 | jbe	L(more8byteseq) | 
|  | 575 | #endif | 
|  | 576 | add	$16, %ecx | 
|  | 577 | movdqa	%xmm4, %xmm3 | 
|  | 578 |  | 
|  | 579 | add	$16, %edi | 
|  | 580 | jg	L(nibble_ashr_3) | 
|  | 581 |  | 
|  | 582 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 583 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 584 | movdqa	%xmm2, %xmm4 | 
|  | 585 |  | 
|  | 586 | palignr	$3, %xmm3, %xmm2 | 
|  | 587 |  | 
|  | 588 | pcmpeqb	%xmm1, %xmm0 | 
|  | 589 | pcmpeqb	%xmm2, %xmm1 | 
|  | 590 | psubb	%xmm0, %xmm1 | 
|  | 591 | pmovmskb %xmm1, %esi | 
|  | 592 | sub	$0xffff, %esi | 
|  | 593 | jnz	L(exit) | 
|  | 594 |  | 
|  | 595 | #ifdef USE_AS_STRNCMP | 
|  | 596 | cmp	$16, %ebp | 
|  | 597 | lea	-16(%ebp), %ebp | 
|  | 598 | jbe	L(more8byteseq) | 
|  | 599 | #endif | 
|  | 600 | add	$16, %ecx | 
|  | 601 | movdqa	%xmm4, %xmm3 | 
|  | 602 | jmp	L(loop_ashr_3) | 
|  | 603 |  | 
|  | 604 | .p2align 4 | 
|  | 605 | L(nibble_ashr_3): | 
|  | 606 | pcmpeqb	%xmm3, %xmm0 | 
|  | 607 | pmovmskb %xmm0, %esi | 
|  | 608 | test	$0xfff8, %esi | 
|  | 609 | jnz	L(ashr_3_exittail) | 
|  | 610 |  | 
|  | 611 | #ifdef USE_AS_STRNCMP | 
|  | 612 | cmp	$13, %ebp | 
|  | 613 | jbe	L(ashr_3_exittail) | 
|  | 614 | #endif | 
|  | 615 | pxor	%xmm0, %xmm0 | 
|  | 616 | sub	$0x1000, %edi | 
|  | 617 | jmp	L(gobble_ashr_3) | 
|  | 618 |  | 
|  | 619 | .p2align 4 | 
|  | 620 | L(ashr_3_exittail): | 
|  | 621 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 622 | psrldq	$3, %xmm0 | 
|  | 623 | psrldq	$3, %xmm3 | 
|  | 624 | jmp	L(aftertail) | 
|  | 625 |  | 
|  | 626 | /* | 
|  | 627 | * The following cases will be handled by ashr_4 | 
|  | 628 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 629 | *        n(12~15)            n -12            3(15 +(n-12) - n)         ashr_4 | 
|  | 630 | */ | 
|  | 631 | .p2align 4 | 
|  | 632 | L(ashr_4): | 
|  | 633 | mov	$0xffff, %esi | 
|  | 634 | pxor	%xmm0, %xmm0 | 
|  | 635 | movdqa	(%edx), %xmm2 | 
|  | 636 | movdqa	(%eax), %xmm1 | 
|  | 637 | pcmpeqb	%xmm1, %xmm0 | 
|  | 638 | pslldq	$12, %xmm2 | 
|  | 639 | pcmpeqb	%xmm1, %xmm2 | 
|  | 640 | psubb	%xmm0, %xmm2 | 
|  | 641 | pmovmskb %xmm2, %edi | 
|  | 642 | shr	%cl, %esi | 
|  | 643 | shr	%cl, %edi | 
|  | 644 | sub	%edi, %esi | 
|  | 645 | lea	-12(%ecx), %edi | 
|  | 646 | jnz	L(less32bytes) | 
|  | 647 |  | 
|  | 648 | UPDATE_STRNCMP_COUNTER | 
|  | 649 |  | 
|  | 650 | movdqa	(%edx), %xmm3 | 
|  | 651 | pxor	%xmm0, %xmm0 | 
|  | 652 | mov	$16, %ecx | 
|  | 653 | or	$4, %ebx | 
|  | 654 | lea	4(%edx), %edi | 
|  | 655 | and	$0xfff, %edi | 
|  | 656 | sub	$0x1000, %edi | 
|  | 657 |  | 
|  | 658 | .p2align 4 | 
|  | 659 | L(loop_ashr_4): | 
|  | 660 | add	$16, %edi | 
|  | 661 | jg	L(nibble_ashr_4) | 
|  | 662 |  | 
|  | 663 | L(gobble_ashr_4): | 
|  | 664 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 665 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 666 | movdqa	%xmm2, %xmm4 | 
|  | 667 |  | 
|  | 668 | palignr	$4, %xmm3, %xmm2 | 
|  | 669 |  | 
|  | 670 | pcmpeqb	%xmm1, %xmm0 | 
|  | 671 | pcmpeqb	%xmm2, %xmm1 | 
|  | 672 | psubb	%xmm0, %xmm1 | 
|  | 673 | pmovmskb %xmm1, %esi | 
|  | 674 | sub	$0xffff, %esi | 
|  | 675 | jnz	L(exit) | 
|  | 676 |  | 
|  | 677 | #ifdef USE_AS_STRNCMP | 
|  | 678 | cmp	$16, %ebp | 
|  | 679 | lea	-16(%ebp), %ebp | 
|  | 680 | jbe	L(more8byteseq) | 
|  | 681 | #endif | 
|  | 682 |  | 
|  | 683 | add	$16, %ecx | 
|  | 684 | movdqa	%xmm4, %xmm3 | 
|  | 685 |  | 
|  | 686 | add	$16, %edi | 
|  | 687 | jg	L(nibble_ashr_4) | 
|  | 688 |  | 
|  | 689 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 690 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 691 | movdqa	%xmm2, %xmm4 | 
|  | 692 |  | 
|  | 693 | palignr	$4, %xmm3, %xmm2 | 
|  | 694 |  | 
|  | 695 | pcmpeqb	%xmm1, %xmm0 | 
|  | 696 | pcmpeqb	%xmm2, %xmm1 | 
|  | 697 | psubb	%xmm0, %xmm1 | 
|  | 698 | pmovmskb %xmm1, %esi | 
|  | 699 | sub	$0xffff, %esi | 
|  | 700 | jnz	L(exit) | 
|  | 701 |  | 
|  | 702 | #ifdef USE_AS_STRNCMP | 
|  | 703 | cmp	$16, %ebp | 
|  | 704 | lea	-16(%ebp), %ebp | 
|  | 705 | jbe	L(more8byteseq) | 
|  | 706 | #endif | 
|  | 707 |  | 
|  | 708 | add	$16, %ecx | 
|  | 709 | movdqa	%xmm4, %xmm3 | 
|  | 710 | jmp	L(loop_ashr_4) | 
|  | 711 |  | 
|  | 712 | .p2align 4 | 
|  | 713 | L(nibble_ashr_4): | 
|  | 714 | pcmpeqb	%xmm3, %xmm0 | 
|  | 715 | pmovmskb %xmm0, %esi | 
|  | 716 | test	$0xfff0, %esi | 
|  | 717 | jnz	L(ashr_4_exittail) | 
|  | 718 |  | 
|  | 719 | #ifdef USE_AS_STRNCMP | 
|  | 720 | cmp	$12, %ebp | 
|  | 721 | jbe	L(ashr_4_exittail) | 
|  | 722 | #endif | 
|  | 723 |  | 
|  | 724 | pxor	%xmm0, %xmm0 | 
|  | 725 | sub	$0x1000, %edi | 
|  | 726 | jmp	L(gobble_ashr_4) | 
|  | 727 |  | 
|  | 728 | .p2align 4 | 
|  | 729 | L(ashr_4_exittail): | 
|  | 730 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 731 | psrldq	$4, %xmm0 | 
|  | 732 | psrldq	$4, %xmm3 | 
|  | 733 | jmp	L(aftertail) | 
|  | 734 |  | 
|  | 735 | /* | 
|  | 736 | * The following cases will be handled by ashr_5 | 
|  | 737 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 738 | *        n(11~15)            n -11            4(15 +(n-11) - n)         ashr_5 | 
|  | 739 | */ | 
|  | 740 | .p2align 4 | 
|  | 741 | L(ashr_5): | 
|  | 742 | mov	$0xffff, %esi | 
|  | 743 | pxor	%xmm0, %xmm0 | 
|  | 744 | movdqa	(%edx), %xmm2 | 
|  | 745 | movdqa	(%eax), %xmm1 | 
|  | 746 | pcmpeqb	%xmm1, %xmm0 | 
|  | 747 | pslldq	$11, %xmm2 | 
|  | 748 | pcmpeqb	%xmm1, %xmm2 | 
|  | 749 | psubb	%xmm0, %xmm2 | 
|  | 750 | pmovmskb %xmm2, %edi | 
|  | 751 | shr	%cl, %esi | 
|  | 752 | shr	%cl, %edi | 
|  | 753 | sub	%edi, %esi | 
|  | 754 | lea	-11(%ecx), %edi | 
|  | 755 | jnz	L(less32bytes) | 
|  | 756 |  | 
|  | 757 | UPDATE_STRNCMP_COUNTER | 
|  | 758 |  | 
|  | 759 | movdqa	(%edx), %xmm3 | 
|  | 760 | pxor	%xmm0, %xmm0 | 
|  | 761 | mov	$16, %ecx | 
|  | 762 | or	$5, %ebx | 
|  | 763 | lea	5(%edx), %edi | 
|  | 764 | and	$0xfff, %edi | 
|  | 765 | sub	$0x1000, %edi | 
|  | 766 |  | 
|  | 767 | .p2align 4 | 
|  | 768 | L(loop_ashr_5): | 
|  | 769 | add	$16, %edi | 
|  | 770 | jg	L(nibble_ashr_5) | 
|  | 771 |  | 
|  | 772 | L(gobble_ashr_5): | 
|  | 773 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 774 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 775 | movdqa	%xmm2, %xmm4 | 
|  | 776 |  | 
|  | 777 | palignr	$5, %xmm3, %xmm2 | 
|  | 778 |  | 
|  | 779 | pcmpeqb	%xmm1, %xmm0 | 
|  | 780 | pcmpeqb	%xmm2, %xmm1 | 
|  | 781 | psubb	%xmm0, %xmm1 | 
|  | 782 | pmovmskb %xmm1, %esi | 
|  | 783 | sub	$0xffff, %esi | 
|  | 784 | jnz	L(exit) | 
|  | 785 |  | 
|  | 786 | #ifdef USE_AS_STRNCMP | 
|  | 787 | cmp	$16, %ebp | 
|  | 788 | lea	-16(%ebp), %ebp | 
|  | 789 | jbe	L(more8byteseq) | 
|  | 790 | #endif | 
|  | 791 | add	$16, %ecx | 
|  | 792 | movdqa	%xmm4, %xmm3 | 
|  | 793 |  | 
|  | 794 | add	$16, %edi | 
|  | 795 | jg	L(nibble_ashr_5) | 
|  | 796 |  | 
|  | 797 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 798 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 799 | movdqa	%xmm2, %xmm4 | 
|  | 800 |  | 
|  | 801 | palignr	$5, %xmm3, %xmm2 | 
|  | 802 |  | 
|  | 803 | pcmpeqb	%xmm1, %xmm0 | 
|  | 804 | pcmpeqb	%xmm2, %xmm1 | 
|  | 805 | psubb	%xmm0, %xmm1 | 
|  | 806 | pmovmskb %xmm1, %esi | 
|  | 807 | sub	$0xffff, %esi | 
|  | 808 | jnz	L(exit) | 
|  | 809 |  | 
|  | 810 | #ifdef USE_AS_STRNCMP | 
|  | 811 | cmp	$16, %ebp | 
|  | 812 | lea	-16(%ebp), %ebp | 
|  | 813 | jbe	L(more8byteseq) | 
|  | 814 | #endif | 
|  | 815 | add	$16, %ecx | 
|  | 816 | movdqa	%xmm4, %xmm3 | 
|  | 817 | jmp	L(loop_ashr_5) | 
|  | 818 |  | 
|  | 819 | .p2align 4 | 
|  | 820 | L(nibble_ashr_5): | 
|  | 821 | pcmpeqb	%xmm3, %xmm0 | 
|  | 822 | pmovmskb %xmm0, %esi | 
|  | 823 | test	$0xffe0, %esi | 
|  | 824 | jnz	L(ashr_5_exittail) | 
|  | 825 |  | 
|  | 826 | #ifdef USE_AS_STRNCMP | 
|  | 827 | cmp	$11, %ebp | 
|  | 828 | jbe	L(ashr_5_exittail) | 
|  | 829 | #endif | 
|  | 830 | pxor	%xmm0, %xmm0 | 
|  | 831 | sub	$0x1000, %edi | 
|  | 832 | jmp	L(gobble_ashr_5) | 
|  | 833 |  | 
|  | 834 | .p2align 4 | 
|  | 835 | L(ashr_5_exittail): | 
|  | 836 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 837 | psrldq	$5, %xmm0 | 
|  | 838 | psrldq	$5, %xmm3 | 
|  | 839 | jmp	L(aftertail) | 
|  | 840 |  | 
|  | 841 | /* | 
|  | 842 | * The following cases will be handled by ashr_6 | 
|  | 843 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 844 | *        n(10~15)            n -10            5(15 +(n-10) - n)         ashr_6 | 
|  | 845 | */ | 
|  | 846 |  | 
|  | 847 | .p2align 4 | 
|  | 848 | L(ashr_6): | 
|  | 849 | mov	$0xffff, %esi | 
|  | 850 | pxor	%xmm0, %xmm0 | 
|  | 851 | movdqa	(%edx), %xmm2 | 
|  | 852 | movdqa	(%eax), %xmm1 | 
|  | 853 | pcmpeqb	%xmm1, %xmm0 | 
|  | 854 | pslldq	$10, %xmm2 | 
|  | 855 | pcmpeqb	%xmm1, %xmm2 | 
|  | 856 | psubb	%xmm0, %xmm2 | 
|  | 857 | pmovmskb %xmm2, %edi | 
|  | 858 | shr	%cl, %esi | 
|  | 859 | shr	%cl, %edi | 
|  | 860 | sub	%edi, %esi | 
|  | 861 | lea	-10(%ecx), %edi | 
|  | 862 | jnz	L(less32bytes) | 
|  | 863 |  | 
|  | 864 | UPDATE_STRNCMP_COUNTER | 
|  | 865 |  | 
|  | 866 | movdqa	(%edx), %xmm3 | 
|  | 867 | pxor	%xmm0, %xmm0 | 
|  | 868 | mov	$16, %ecx | 
|  | 869 | or	$6, %ebx | 
|  | 870 | lea	6(%edx), %edi | 
|  | 871 | and	$0xfff, %edi | 
|  | 872 | sub	$0x1000, %edi | 
|  | 873 |  | 
|  | 874 | .p2align 4 | 
|  | 875 | L(loop_ashr_6): | 
|  | 876 | add	$16, %edi | 
|  | 877 | jg	L(nibble_ashr_6) | 
|  | 878 |  | 
|  | 879 | L(gobble_ashr_6): | 
|  | 880 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 881 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 882 | movdqa	%xmm2, %xmm4 | 
|  | 883 |  | 
|  | 884 | palignr	$6, %xmm3, %xmm2 | 
|  | 885 |  | 
|  | 886 | pcmpeqb	%xmm1, %xmm0 | 
|  | 887 | pcmpeqb	%xmm2, %xmm1 | 
|  | 888 | psubb	%xmm0, %xmm1 | 
|  | 889 | pmovmskb %xmm1, %esi | 
|  | 890 | sub	$0xffff, %esi | 
|  | 891 | jnz	L(exit) | 
|  | 892 |  | 
|  | 893 | #ifdef USE_AS_STRNCMP | 
|  | 894 | cmp	$16, %ebp | 
|  | 895 | lea	-16(%ebp), %ebp | 
|  | 896 | jbe	L(more8byteseq) | 
|  | 897 | #endif | 
|  | 898 |  | 
|  | 899 | add	$16, %ecx | 
|  | 900 | movdqa	%xmm4, %xmm3 | 
|  | 901 |  | 
|  | 902 | add	$16, %edi | 
|  | 903 | jg	L(nibble_ashr_6) | 
|  | 904 |  | 
|  | 905 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 906 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 907 | movdqa	%xmm2, %xmm4 | 
|  | 908 |  | 
|  | 909 | palignr	$6, %xmm3, %xmm2 | 
|  | 910 |  | 
|  | 911 | pcmpeqb	%xmm1, %xmm0 | 
|  | 912 | pcmpeqb	%xmm2, %xmm1 | 
|  | 913 | psubb	%xmm0, %xmm1 | 
|  | 914 | pmovmskb %xmm1, %esi | 
|  | 915 | sub	$0xffff, %esi | 
|  | 916 | jnz	L(exit) | 
|  | 917 | #ifdef USE_AS_STRNCMP | 
|  | 918 | cmp	$16, %ebp | 
|  | 919 | lea	-16(%ebp), %ebp | 
|  | 920 | jbe	L(more8byteseq) | 
|  | 921 | #endif | 
|  | 922 |  | 
|  | 923 | add	$16, %ecx | 
|  | 924 | movdqa	%xmm4, %xmm3 | 
|  | 925 | jmp	L(loop_ashr_6) | 
|  | 926 |  | 
|  | 927 | .p2align 4 | 
|  | 928 | L(nibble_ashr_6): | 
|  | 929 | pcmpeqb	%xmm3, %xmm0 | 
|  | 930 | pmovmskb %xmm0, %esi | 
|  | 931 | test	$0xffc0, %esi | 
|  | 932 | jnz	L(ashr_6_exittail) | 
|  | 933 |  | 
|  | 934 | #ifdef USE_AS_STRNCMP | 
|  | 935 | cmp	$10, %ebp | 
|  | 936 | jbe	L(ashr_6_exittail) | 
|  | 937 | #endif | 
|  | 938 | pxor	%xmm0, %xmm0 | 
|  | 939 | sub	$0x1000, %edi | 
|  | 940 | jmp	L(gobble_ashr_6) | 
|  | 941 |  | 
|  | 942 | .p2align 4 | 
|  | 943 | L(ashr_6_exittail): | 
|  | 944 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 945 | psrldq	$6, %xmm0 | 
|  | 946 | psrldq	$6, %xmm3 | 
|  | 947 | jmp	L(aftertail) | 
|  | 948 |  | 
|  | 949 | /* | 
|  | 950 | * The following cases will be handled by ashr_7 | 
|  | 951 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 952 | *        n(9~15)            n - 9            6(15 +(n-9) - n)         ashr_7 | 
|  | 953 | */ | 
|  | 954 |  | 
|  | 955 | .p2align 4 | 
|  | 956 | L(ashr_7): | 
|  | 957 | mov	$0xffff, %esi | 
|  | 958 | pxor	%xmm0, %xmm0 | 
|  | 959 | movdqa	(%edx), %xmm2 | 
|  | 960 | movdqa	(%eax), %xmm1 | 
|  | 961 | pcmpeqb	%xmm1, %xmm0 | 
|  | 962 | pslldq	$9, %xmm2 | 
|  | 963 | pcmpeqb	%xmm1, %xmm2 | 
|  | 964 | psubb	%xmm0, %xmm2 | 
|  | 965 | pmovmskb %xmm2, %edi | 
|  | 966 | shr	%cl, %esi | 
|  | 967 | shr	%cl, %edi | 
|  | 968 | sub	%edi, %esi | 
|  | 969 | lea	-9(%ecx), %edi | 
|  | 970 | jnz	L(less32bytes) | 
|  | 971 |  | 
|  | 972 | UPDATE_STRNCMP_COUNTER | 
|  | 973 |  | 
|  | 974 | movdqa	(%edx), %xmm3 | 
|  | 975 | pxor	%xmm0, %xmm0 | 
|  | 976 | mov	$16, %ecx | 
|  | 977 | or	$7, %ebx | 
|  | 978 | lea	8(%edx), %edi | 
|  | 979 | and	$0xfff, %edi | 
|  | 980 | sub	$0x1000, %edi | 
|  | 981 |  | 
|  | 982 | .p2align 4 | 
|  | 983 | L(loop_ashr_7): | 
|  | 984 | add	$16, %edi | 
|  | 985 | jg	L(nibble_ashr_7) | 
|  | 986 |  | 
|  | 987 | L(gobble_ashr_7): | 
|  | 988 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 989 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 990 | movdqa	%xmm2, %xmm4 | 
|  | 991 |  | 
|  | 992 | palignr	$7, %xmm3, %xmm2 | 
|  | 993 |  | 
|  | 994 | pcmpeqb	%xmm1, %xmm0 | 
|  | 995 | pcmpeqb	%xmm2, %xmm1 | 
|  | 996 | psubb	%xmm0, %xmm1 | 
|  | 997 | pmovmskb %xmm1, %esi | 
|  | 998 | sub	$0xffff, %esi | 
|  | 999 | jnz	L(exit) | 
|  | 1000 |  | 
|  | 1001 | #ifdef USE_AS_STRNCMP | 
|  | 1002 | cmp	$16, %ebp | 
|  | 1003 | lea	-16(%ebp), %ebp | 
|  | 1004 | jbe	L(more8byteseq) | 
|  | 1005 | #endif | 
|  | 1006 |  | 
|  | 1007 | add	$16, %ecx | 
|  | 1008 | movdqa	%xmm4, %xmm3 | 
|  | 1009 |  | 
|  | 1010 | add	$16, %edi | 
|  | 1011 | jg	L(nibble_ashr_7) | 
|  | 1012 |  | 
|  | 1013 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1014 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1015 | movdqa	%xmm2, %xmm4 | 
|  | 1016 |  | 
|  | 1017 | palignr	$7, %xmm3, %xmm2 | 
|  | 1018 |  | 
|  | 1019 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1020 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1021 | psubb	%xmm0, %xmm1 | 
|  | 1022 | pmovmskb %xmm1, %esi | 
|  | 1023 | sub	$0xffff, %esi | 
|  | 1024 | jnz	L(exit) | 
|  | 1025 |  | 
|  | 1026 | #ifdef USE_AS_STRNCMP | 
|  | 1027 | cmp	$16, %ebp | 
|  | 1028 | lea	-16(%ebp), %ebp | 
|  | 1029 | jbe	L(more8byteseq) | 
|  | 1030 | #endif | 
|  | 1031 |  | 
|  | 1032 | add	$16, %ecx | 
|  | 1033 | movdqa	%xmm4, %xmm3 | 
|  | 1034 | jmp	L(loop_ashr_7) | 
|  | 1035 |  | 
|  | 1036 | .p2align 4 | 
|  | 1037 | L(nibble_ashr_7): | 
|  | 1038 | pcmpeqb	%xmm3, %xmm0 | 
|  | 1039 | pmovmskb %xmm0, %esi | 
|  | 1040 | test	$0xff80, %esi | 
|  | 1041 | jnz	L(ashr_7_exittail) | 
|  | 1042 |  | 
|  | 1043 | #ifdef USE_AS_STRNCMP | 
|  | 1044 | cmp	$9, %ebp | 
|  | 1045 | jbe	L(ashr_7_exittail) | 
|  | 1046 | #endif | 
|  | 1047 | pxor	%xmm0, %xmm0 | 
|  | 1048 | pxor	%xmm0, %xmm0 | 
|  | 1049 | sub	$0x1000, %edi | 
|  | 1050 | jmp	L(gobble_ashr_7) | 
|  | 1051 |  | 
|  | 1052 | .p2align 4 | 
|  | 1053 | L(ashr_7_exittail): | 
|  | 1054 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1055 | psrldq	$7, %xmm0 | 
|  | 1056 | psrldq	$7, %xmm3 | 
|  | 1057 | jmp	L(aftertail) | 
|  | 1058 |  | 
|  | 1059 | /* | 
|  | 1060 | * The following cases will be handled by ashr_8 | 
|  | 1061 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 1062 | *        n(8~15)            n - 8            7(15 +(n-8) - n)         ashr_8 | 
|  | 1063 | */ | 
|  | 1064 | .p2align 4 | 
|  | 1065 | L(ashr_8): | 
|  | 1066 | mov	$0xffff, %esi | 
|  | 1067 | pxor	%xmm0, %xmm0 | 
|  | 1068 | movdqa	(%edx), %xmm2 | 
|  | 1069 | movdqa	(%eax), %xmm1 | 
|  | 1070 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1071 | pslldq	$8, %xmm2 | 
|  | 1072 | pcmpeqb	%xmm1, %xmm2 | 
|  | 1073 | psubb	%xmm0, %xmm2 | 
|  | 1074 | pmovmskb %xmm2, %edi | 
|  | 1075 | shr	%cl, %esi | 
|  | 1076 | shr	%cl, %edi | 
|  | 1077 | sub	%edi, %esi | 
|  | 1078 | lea	-8(%ecx), %edi | 
|  | 1079 | jnz	L(less32bytes) | 
|  | 1080 |  | 
|  | 1081 | UPDATE_STRNCMP_COUNTER | 
|  | 1082 |  | 
|  | 1083 | movdqa	(%edx), %xmm3 | 
|  | 1084 | pxor	%xmm0, %xmm0 | 
|  | 1085 | mov	$16, %ecx | 
|  | 1086 | or	$8, %ebx | 
|  | 1087 | lea	8(%edx), %edi | 
|  | 1088 | and	$0xfff, %edi | 
|  | 1089 | sub	$0x1000, %edi | 
|  | 1090 |  | 
|  | 1091 | .p2align 4 | 
|  | 1092 | L(loop_ashr_8): | 
|  | 1093 | add	$16, %edi | 
|  | 1094 | jg	L(nibble_ashr_8) | 
|  | 1095 |  | 
|  | 1096 | L(gobble_ashr_8): | 
|  | 1097 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1098 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1099 | movdqa	%xmm2, %xmm4 | 
|  | 1100 |  | 
|  | 1101 | palignr	$8, %xmm3, %xmm2 | 
|  | 1102 |  | 
|  | 1103 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1104 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1105 | psubb	%xmm0, %xmm1 | 
|  | 1106 | pmovmskb %xmm1, %esi | 
|  | 1107 | sub	$0xffff, %esi | 
|  | 1108 | jnz	L(exit) | 
|  | 1109 |  | 
|  | 1110 | #ifdef USE_AS_STRNCMP | 
|  | 1111 | cmp	$16, %ebp | 
|  | 1112 | lea	-16(%ebp), %ebp | 
|  | 1113 | jbe	L(more8byteseq) | 
|  | 1114 | #endif | 
|  | 1115 | add	$16, %ecx | 
|  | 1116 | movdqa	%xmm4, %xmm3 | 
|  | 1117 |  | 
|  | 1118 | add	$16, %edi | 
|  | 1119 | jg	L(nibble_ashr_8) | 
|  | 1120 |  | 
|  | 1121 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1122 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1123 | movdqa	%xmm2, %xmm4 | 
|  | 1124 |  | 
|  | 1125 | palignr	$8, %xmm3, %xmm2 | 
|  | 1126 |  | 
|  | 1127 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1128 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1129 | psubb	%xmm0, %xmm1 | 
|  | 1130 | pmovmskb %xmm1, %esi | 
|  | 1131 | sub	$0xffff, %esi | 
|  | 1132 | jnz	L(exit) | 
|  | 1133 |  | 
|  | 1134 | #ifdef USE_AS_STRNCMP | 
|  | 1135 | cmp	$16, %ebp | 
|  | 1136 | lea	-16(%ebp), %ebp | 
|  | 1137 | jbe	L(more8byteseq) | 
|  | 1138 | #endif | 
|  | 1139 | add	$16, %ecx | 
|  | 1140 | movdqa	%xmm4, %xmm3 | 
|  | 1141 | jmp	L(loop_ashr_8) | 
|  | 1142 |  | 
|  | 1143 | .p2align 4 | 
|  | 1144 | L(nibble_ashr_8): | 
|  | 1145 | pcmpeqb	%xmm3, %xmm0 | 
|  | 1146 | pmovmskb %xmm0, %esi | 
|  | 1147 | test	$0xff00, %esi | 
|  | 1148 | jnz	L(ashr_8_exittail) | 
|  | 1149 |  | 
|  | 1150 | #ifdef USE_AS_STRNCMP | 
|  | 1151 | cmp	$8, %ebp | 
|  | 1152 | jbe	L(ashr_8_exittail) | 
|  | 1153 | #endif | 
|  | 1154 | pxor	%xmm0, %xmm0 | 
|  | 1155 | pxor	%xmm0, %xmm0 | 
|  | 1156 | sub	$0x1000, %edi | 
|  | 1157 | jmp	L(gobble_ashr_8) | 
|  | 1158 |  | 
|  | 1159 | .p2align 4 | 
|  | 1160 | L(ashr_8_exittail): | 
|  | 1161 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1162 | psrldq	$8, %xmm0 | 
|  | 1163 | psrldq	$8, %xmm3 | 
|  | 1164 | jmp	L(aftertail) | 
|  | 1165 |  | 
|  | 1166 | /* | 
|  | 1167 | * The following cases will be handled by ashr_9 | 
|  | 1168 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 1169 | *        n(7~15)            n - 7            8(15 +(n-7) - n)         ashr_9 | 
|  | 1170 | */ | 
|  | 1171 | .p2align 4 | 
|  | 1172 | L(ashr_9): | 
|  | 1173 | mov	$0xffff, %esi | 
|  | 1174 | pxor	%xmm0, %xmm0 | 
|  | 1175 | movdqa	(%edx), %xmm2 | 
|  | 1176 | movdqa	(%eax), %xmm1 | 
|  | 1177 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1178 | pslldq	$7, %xmm2 | 
|  | 1179 | pcmpeqb	%xmm1, %xmm2 | 
|  | 1180 | psubb	%xmm0, %xmm2 | 
|  | 1181 | pmovmskb %xmm2, %edi | 
|  | 1182 | shr	%cl, %esi | 
|  | 1183 | shr	%cl, %edi | 
|  | 1184 | sub	%edi, %esi | 
|  | 1185 | lea	-7(%ecx), %edi | 
|  | 1186 | jnz	L(less32bytes) | 
|  | 1187 |  | 
|  | 1188 | UPDATE_STRNCMP_COUNTER | 
|  | 1189 |  | 
|  | 1190 | movdqa	(%edx), %xmm3 | 
|  | 1191 | pxor	%xmm0, %xmm0 | 
|  | 1192 | mov	$16, %ecx | 
|  | 1193 | or	$9, %ebx | 
|  | 1194 | lea	9(%edx), %edi | 
|  | 1195 | and	$0xfff, %edi | 
|  | 1196 | sub	$0x1000, %edi | 
|  | 1197 |  | 
|  | 1198 | .p2align 4 | 
|  | 1199 | L(loop_ashr_9): | 
|  | 1200 | add	$16, %edi | 
|  | 1201 | jg	L(nibble_ashr_9) | 
|  | 1202 |  | 
|  | 1203 | L(gobble_ashr_9): | 
|  | 1204 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1205 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1206 | movdqa	%xmm2, %xmm4 | 
|  | 1207 |  | 
|  | 1208 | palignr	$9, %xmm3, %xmm2 | 
|  | 1209 |  | 
|  | 1210 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1211 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1212 | psubb	%xmm0, %xmm1 | 
|  | 1213 | pmovmskb %xmm1, %esi | 
|  | 1214 | sub	$0xffff, %esi | 
|  | 1215 | jnz	L(exit) | 
|  | 1216 |  | 
|  | 1217 | #ifdef USE_AS_STRNCMP | 
|  | 1218 | cmp	$16, %ebp | 
|  | 1219 | lea	-16(%ebp), %ebp | 
|  | 1220 | jbe	L(more8byteseq) | 
|  | 1221 | #endif | 
|  | 1222 | add	$16, %ecx | 
|  | 1223 | movdqa	%xmm4, %xmm3 | 
|  | 1224 |  | 
|  | 1225 | add	$16, %edi | 
|  | 1226 | jg	L(nibble_ashr_9) | 
|  | 1227 |  | 
|  | 1228 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1229 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1230 | movdqa	%xmm2, %xmm4 | 
|  | 1231 |  | 
|  | 1232 | palignr	$9, %xmm3, %xmm2 | 
|  | 1233 |  | 
|  | 1234 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1235 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1236 | psubb	%xmm0, %xmm1 | 
|  | 1237 | pmovmskb %xmm1, %esi | 
|  | 1238 | sub	$0xffff, %esi | 
|  | 1239 | jnz	L(exit) | 
|  | 1240 |  | 
|  | 1241 | #ifdef USE_AS_STRNCMP | 
|  | 1242 | cmp	$16, %ebp | 
|  | 1243 | lea	-16(%ebp), %ebp | 
|  | 1244 | jbe	L(more8byteseq) | 
|  | 1245 | #endif | 
|  | 1246 | add	$16, %ecx | 
|  | 1247 | movdqa	%xmm4, %xmm3 | 
|  | 1248 | jmp	L(loop_ashr_9) | 
|  | 1249 |  | 
|  | 1250 | .p2align 4 | 
|  | 1251 | L(nibble_ashr_9): | 
|  | 1252 | pcmpeqb	%xmm3, %xmm0 | 
|  | 1253 | pmovmskb %xmm0, %esi | 
|  | 1254 | test	$0xfe00, %esi | 
|  | 1255 | jnz	L(ashr_9_exittail) | 
|  | 1256 |  | 
|  | 1257 | #ifdef USE_AS_STRNCMP | 
|  | 1258 | cmp	$7, %ebp | 
|  | 1259 | jbe	L(ashr_9_exittail) | 
|  | 1260 | #endif | 
|  | 1261 | pxor	%xmm0, %xmm0 | 
|  | 1262 | sub	$0x1000, %edi | 
|  | 1263 | jmp	L(gobble_ashr_9) | 
|  | 1264 |  | 
|  | 1265 | .p2align 4 | 
|  | 1266 | L(ashr_9_exittail): | 
|  | 1267 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1268 | psrldq	$9, %xmm0 | 
|  | 1269 | psrldq	$9, %xmm3 | 
|  | 1270 | jmp	L(aftertail) | 
|  | 1271 |  | 
|  | 1272 | /* | 
|  | 1273 | * The following cases will be handled by ashr_10 | 
|  | 1274 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 1275 | *        n(6~15)            n - 6            9(15 +(n-6) - n)         ashr_10 | 
|  | 1276 | */ | 
|  | 1277 | .p2align 4 | 
|  | 1278 | L(ashr_10): | 
|  | 1279 | mov	$0xffff, %esi | 
|  | 1280 | pxor	%xmm0, %xmm0 | 
|  | 1281 | movdqa	(%edx), %xmm2 | 
|  | 1282 | movdqa	(%eax), %xmm1 | 
|  | 1283 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1284 | pslldq	$6, %xmm2 | 
|  | 1285 | pcmpeqb	%xmm1, %xmm2 | 
|  | 1286 | psubb	%xmm0, %xmm2 | 
|  | 1287 | pmovmskb %xmm2, %edi | 
|  | 1288 | shr	%cl, %esi | 
|  | 1289 | shr	%cl, %edi | 
|  | 1290 | sub	%edi, %esi | 
|  | 1291 | lea	-6(%ecx), %edi | 
|  | 1292 | jnz	L(less32bytes) | 
|  | 1293 |  | 
|  | 1294 | UPDATE_STRNCMP_COUNTER | 
|  | 1295 |  | 
|  | 1296 | movdqa	(%edx), %xmm3 | 
|  | 1297 | pxor	%xmm0, %xmm0 | 
|  | 1298 | mov	$16, %ecx | 
|  | 1299 | or	$10, %ebx | 
|  | 1300 | lea	10(%edx), %edi | 
|  | 1301 | and	$0xfff, %edi | 
|  | 1302 | sub	$0x1000, %edi | 
|  | 1303 |  | 
|  | 1304 | .p2align 4 | 
|  | 1305 | L(loop_ashr_10): | 
|  | 1306 | add	$16, %edi | 
|  | 1307 | jg	L(nibble_ashr_10) | 
|  | 1308 |  | 
|  | 1309 | L(gobble_ashr_10): | 
|  | 1310 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1311 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1312 | movdqa	%xmm2, %xmm4 | 
|  | 1313 |  | 
|  | 1314 | palignr	$10, %xmm3, %xmm2 | 
|  | 1315 |  | 
|  | 1316 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1317 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1318 | psubb	%xmm0, %xmm1 | 
|  | 1319 | pmovmskb %xmm1, %esi | 
|  | 1320 | sub	$0xffff, %esi | 
|  | 1321 | jnz	L(exit) | 
|  | 1322 |  | 
|  | 1323 | #ifdef USE_AS_STRNCMP | 
|  | 1324 | cmp	$16, %ebp | 
|  | 1325 | lea	-16(%ebp), %ebp | 
|  | 1326 | jbe	L(more8byteseq) | 
|  | 1327 | #endif | 
|  | 1328 | add	$16, %ecx | 
|  | 1329 | movdqa	%xmm4, %xmm3 | 
|  | 1330 |  | 
|  | 1331 | add	$16, %edi | 
|  | 1332 | jg	L(nibble_ashr_10) | 
|  | 1333 |  | 
|  | 1334 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1335 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1336 | movdqa	%xmm2, %xmm4 | 
|  | 1337 |  | 
|  | 1338 | palignr	$10, %xmm3, %xmm2 | 
|  | 1339 |  | 
|  | 1340 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1341 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1342 | psubb	%xmm0, %xmm1 | 
|  | 1343 | pmovmskb %xmm1, %esi | 
|  | 1344 | sub	$0xffff, %esi | 
|  | 1345 | jnz	L(exit) | 
|  | 1346 |  | 
|  | 1347 | #ifdef USE_AS_STRNCMP | 
|  | 1348 | cmp	$16, %ebp | 
|  | 1349 | lea	-16(%ebp), %ebp | 
|  | 1350 | jbe	L(more8byteseq) | 
|  | 1351 | #endif | 
|  | 1352 | add	$16, %ecx | 
|  | 1353 | movdqa	%xmm4, %xmm3 | 
|  | 1354 | jmp	L(loop_ashr_10) | 
|  | 1355 |  | 
|  | 1356 | .p2align 4 | 
|  | 1357 | L(nibble_ashr_10): | 
|  | 1358 | pcmpeqb	%xmm3, %xmm0 | 
|  | 1359 | pmovmskb %xmm0, %esi | 
|  | 1360 | test	$0xfc00, %esi | 
|  | 1361 | jnz	L(ashr_10_exittail) | 
|  | 1362 |  | 
|  | 1363 | #ifdef USE_AS_STRNCMP | 
|  | 1364 | cmp	$6, %ebp | 
|  | 1365 | jbe	L(ashr_10_exittail) | 
|  | 1366 | #endif | 
|  | 1367 | pxor	%xmm0, %xmm0 | 
|  | 1368 | sub	$0x1000, %edi | 
|  | 1369 | jmp	L(gobble_ashr_10) | 
|  | 1370 |  | 
|  | 1371 | .p2align 4 | 
|  | 1372 | L(ashr_10_exittail): | 
|  | 1373 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1374 | psrldq	$10, %xmm0 | 
|  | 1375 | psrldq	$10, %xmm3 | 
|  | 1376 | jmp	L(aftertail) | 
|  | 1377 |  | 
|  | 1378 | /* | 
|  | 1379 | * The following cases will be handled by ashr_11 | 
|  | 1380 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 1381 | *        n(5~15)            n - 5            10(15 +(n-5) - n)         ashr_11 | 
|  | 1382 | */ | 
|  | 1383 | .p2align 4 | 
|  | 1384 | L(ashr_11): | 
|  | 1385 | mov	$0xffff, %esi | 
|  | 1386 | pxor	%xmm0, %xmm0 | 
|  | 1387 | movdqa	(%edx), %xmm2 | 
|  | 1388 | movdqa	(%eax), %xmm1 | 
|  | 1389 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1390 | pslldq	$5, %xmm2 | 
|  | 1391 | pcmpeqb	%xmm1, %xmm2 | 
|  | 1392 | psubb	%xmm0, %xmm2 | 
|  | 1393 | pmovmskb %xmm2, %edi | 
|  | 1394 | shr	%cl, %esi | 
|  | 1395 | shr	%cl, %edi | 
|  | 1396 | sub	%edi, %esi | 
|  | 1397 | lea	-5(%ecx), %edi | 
|  | 1398 | jnz	L(less32bytes) | 
|  | 1399 |  | 
|  | 1400 | UPDATE_STRNCMP_COUNTER | 
|  | 1401 |  | 
|  | 1402 | movdqa	(%edx), %xmm3 | 
|  | 1403 | pxor	%xmm0, %xmm0 | 
|  | 1404 | mov	$16, %ecx | 
|  | 1405 | or	$11, %ebx | 
|  | 1406 | lea	11(%edx), %edi | 
|  | 1407 | and	$0xfff, %edi | 
|  | 1408 | sub	$0x1000, %edi | 
|  | 1409 |  | 
|  | 1410 | .p2align 4 | 
|  | 1411 | L(loop_ashr_11): | 
|  | 1412 | add	$16, %edi | 
|  | 1413 | jg	L(nibble_ashr_11) | 
|  | 1414 |  | 
|  | 1415 | L(gobble_ashr_11): | 
|  | 1416 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1417 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1418 | movdqa	%xmm2, %xmm4 | 
|  | 1419 |  | 
|  | 1420 | palignr	$11, %xmm3, %xmm2 | 
|  | 1421 |  | 
|  | 1422 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1423 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1424 | psubb	%xmm0, %xmm1 | 
|  | 1425 | pmovmskb %xmm1, %esi | 
|  | 1426 | sub	$0xffff, %esi | 
|  | 1427 | jnz	L(exit) | 
|  | 1428 |  | 
|  | 1429 | #ifdef USE_AS_STRNCMP | 
|  | 1430 | cmp	$16, %ebp | 
|  | 1431 | lea	-16(%ebp), %ebp | 
|  | 1432 | jbe	L(more8byteseq) | 
|  | 1433 | #endif | 
|  | 1434 | add	$16, %ecx | 
|  | 1435 | movdqa	%xmm4, %xmm3 | 
|  | 1436 |  | 
|  | 1437 | add	$16, %edi | 
|  | 1438 | jg	L(nibble_ashr_11) | 
|  | 1439 |  | 
|  | 1440 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1441 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1442 | movdqa	%xmm2, %xmm4 | 
|  | 1443 |  | 
|  | 1444 | palignr	$11, %xmm3, %xmm2 | 
|  | 1445 |  | 
|  | 1446 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1447 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1448 | psubb	%xmm0, %xmm1 | 
|  | 1449 | pmovmskb %xmm1, %esi | 
|  | 1450 | sub	$0xffff, %esi | 
|  | 1451 | jnz	L(exit) | 
|  | 1452 |  | 
|  | 1453 | #ifdef USE_AS_STRNCMP | 
|  | 1454 | cmp	$16, %ebp | 
|  | 1455 | lea	-16(%ebp), %ebp | 
|  | 1456 | jbe	L(more8byteseq) | 
|  | 1457 | #endif | 
|  | 1458 | add	$16, %ecx | 
|  | 1459 | movdqa	%xmm4, %xmm3 | 
|  | 1460 | jmp	L(loop_ashr_11) | 
|  | 1461 |  | 
|  | 1462 | .p2align 4 | 
|  | 1463 | L(nibble_ashr_11): | 
|  | 1464 | pcmpeqb	%xmm3, %xmm0 | 
|  | 1465 | pmovmskb %xmm0, %esi | 
|  | 1466 | test	$0xf800, %esi | 
|  | 1467 | jnz	L(ashr_11_exittail) | 
|  | 1468 |  | 
|  | 1469 | #ifdef USE_AS_STRNCMP | 
|  | 1470 | cmp	$5, %ebp | 
|  | 1471 | jbe	L(ashr_11_exittail) | 
|  | 1472 | #endif | 
|  | 1473 | pxor	%xmm0, %xmm0 | 
|  | 1474 | sub	$0x1000, %edi | 
|  | 1475 | jmp	L(gobble_ashr_11) | 
|  | 1476 |  | 
|  | 1477 | .p2align 4 | 
|  | 1478 | L(ashr_11_exittail): | 
|  | 1479 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1480 | psrldq	$11, %xmm0 | 
|  | 1481 | psrldq	$11, %xmm3 | 
|  | 1482 | jmp	L(aftertail) | 
|  | 1483 |  | 
|  | 1484 | /* | 
|  | 1485 | * The following cases will be handled by ashr_12 | 
|  | 1486 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 1487 | *        n(4~15)            n - 4            11(15 +(n-4) - n)         ashr_12 | 
|  | 1488 | */ | 
|  | 1489 | .p2align 4 | 
|  | 1490 | L(ashr_12): | 
|  | 1491 | mov	$0xffff, %esi | 
|  | 1492 | pxor	%xmm0, %xmm0 | 
|  | 1493 | movdqa	(%edx), %xmm2 | 
|  | 1494 | movdqa	(%eax), %xmm1 | 
|  | 1495 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1496 | pslldq	$4, %xmm2 | 
|  | 1497 | pcmpeqb	%xmm1, %xmm2 | 
|  | 1498 | psubb	%xmm0, %xmm2 | 
|  | 1499 | pmovmskb %xmm2, %edi | 
|  | 1500 | shr	%cl, %esi | 
|  | 1501 | shr	%cl, %edi | 
|  | 1502 | sub	%edi, %esi | 
|  | 1503 | lea	-4(%ecx), %edi | 
|  | 1504 | jnz	L(less32bytes) | 
|  | 1505 |  | 
|  | 1506 | UPDATE_STRNCMP_COUNTER | 
|  | 1507 |  | 
|  | 1508 | movdqa	(%edx), %xmm3 | 
|  | 1509 | pxor	%xmm0, %xmm0 | 
|  | 1510 | mov	$16, %ecx | 
|  | 1511 | or	$12, %ebx | 
|  | 1512 | lea	12(%edx), %edi | 
|  | 1513 | and	$0xfff, %edi | 
|  | 1514 | sub	$0x1000, %edi | 
|  | 1515 |  | 
|  | 1516 | .p2align 4 | 
|  | 1517 | L(loop_ashr_12): | 
|  | 1518 | add	$16, %edi | 
|  | 1519 | jg	L(nibble_ashr_12) | 
|  | 1520 |  | 
|  | 1521 | L(gobble_ashr_12): | 
|  | 1522 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1523 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1524 | movdqa	%xmm2, %xmm4 | 
|  | 1525 |  | 
|  | 1526 | palignr	$12, %xmm3, %xmm2 | 
|  | 1527 |  | 
|  | 1528 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1529 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1530 | psubb	%xmm0, %xmm1 | 
|  | 1531 | pmovmskb %xmm1, %esi | 
|  | 1532 | sub	$0xffff, %esi | 
|  | 1533 | jnz	L(exit) | 
|  | 1534 |  | 
| Bruce Beare | 124a542 | 2010-10-11 12:24:41 -0700 | [diff] [blame] | 1535 | #ifdef USE_AS_STRNCMP | 
|  | 1536 | cmp	$16, %ebp | 
|  | 1537 | lea	-16(%ebp), %ebp | 
|  | 1538 | jbe	L(more8byteseq) | 
|  | 1539 | #endif | 
|  | 1540 |  | 
| Bruce Beare | 8ff1a27 | 2010-03-04 11:03:37 -0800 | [diff] [blame] | 1541 | add	$16, %ecx | 
|  | 1542 | movdqa	%xmm4, %xmm3 | 
|  | 1543 |  | 
|  | 1544 | add	$16, %edi | 
|  | 1545 | jg	L(nibble_ashr_12) | 
|  | 1546 |  | 
| Bruce Beare | 8ff1a27 | 2010-03-04 11:03:37 -0800 | [diff] [blame] | 1547 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1548 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1549 | movdqa	%xmm2, %xmm4 | 
|  | 1550 |  | 
|  | 1551 | palignr	$12, %xmm3, %xmm2 | 
|  | 1552 |  | 
|  | 1553 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1554 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1555 | psubb	%xmm0, %xmm1 | 
|  | 1556 | pmovmskb %xmm1, %esi | 
|  | 1557 | sub	$0xffff, %esi | 
|  | 1558 | jnz	L(exit) | 
|  | 1559 |  | 
|  | 1560 | #ifdef USE_AS_STRNCMP | 
|  | 1561 | cmp	$16, %ebp | 
|  | 1562 | lea	-16(%ebp), %ebp | 
|  | 1563 | jbe	L(more8byteseq) | 
|  | 1564 | #endif | 
|  | 1565 | add	$16, %ecx | 
|  | 1566 | movdqa	%xmm4, %xmm3 | 
|  | 1567 | jmp	L(loop_ashr_12) | 
|  | 1568 |  | 
|  | 1569 | .p2align 4 | 
|  | 1570 | L(nibble_ashr_12): | 
|  | 1571 | pcmpeqb	%xmm3, %xmm0 | 
|  | 1572 | pmovmskb %xmm0, %esi | 
|  | 1573 | test	$0xf000, %esi | 
|  | 1574 | jnz	L(ashr_12_exittail) | 
|  | 1575 |  | 
|  | 1576 | #ifdef USE_AS_STRNCMP | 
|  | 1577 | cmp	$4, %ebp | 
|  | 1578 | jbe	L(ashr_12_exittail) | 
|  | 1579 | #endif | 
|  | 1580 | pxor	%xmm0, %xmm0 | 
|  | 1581 | sub	$0x1000, %edi | 
|  | 1582 | jmp	L(gobble_ashr_12) | 
|  | 1583 |  | 
|  | 1584 | .p2align 4 | 
|  | 1585 | L(ashr_12_exittail): | 
|  | 1586 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1587 | psrldq	$12, %xmm0 | 
|  | 1588 | psrldq	$12, %xmm3 | 
|  | 1589 | jmp	L(aftertail) | 
|  | 1590 |  | 
|  | 1591 | /* | 
|  | 1592 | * The following cases will be handled by ashr_13 | 
|  | 1593 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 1594 | *        n(3~15)            n - 3            12(15 +(n-3) - n)         ashr_13 | 
|  | 1595 | */ | 
|  | 1596 | .p2align 4 | 
|  | 1597 | L(ashr_13): | 
|  | 1598 | mov	$0xffff, %esi | 
|  | 1599 | pxor	%xmm0, %xmm0 | 
|  | 1600 | movdqa	(%edx), %xmm2 | 
|  | 1601 | movdqa	(%eax), %xmm1 | 
|  | 1602 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1603 | pslldq	$3, %xmm2 | 
|  | 1604 | pcmpeqb	%xmm1, %xmm2 | 
|  | 1605 | psubb	%xmm0, %xmm2 | 
|  | 1606 | pmovmskb %xmm2, %edi | 
|  | 1607 | shr	%cl, %esi | 
|  | 1608 | shr	%cl, %edi | 
|  | 1609 | sub	%edi, %esi | 
|  | 1610 | lea	-3(%ecx), %edi | 
|  | 1611 | jnz	L(less32bytes) | 
|  | 1612 |  | 
|  | 1613 | UPDATE_STRNCMP_COUNTER | 
|  | 1614 |  | 
|  | 1615 | movdqa	(%edx), %xmm3 | 
|  | 1616 | pxor	%xmm0, %xmm0 | 
|  | 1617 | mov	$16, %ecx | 
|  | 1618 | or	$13, %ebx | 
|  | 1619 | lea	13(%edx), %edi | 
|  | 1620 | and	$0xfff, %edi | 
|  | 1621 | sub	$0x1000, %edi | 
|  | 1622 |  | 
|  | 1623 | .p2align 4 | 
|  | 1624 | L(loop_ashr_13): | 
|  | 1625 | add	$16, %edi | 
|  | 1626 | jg	L(nibble_ashr_13) | 
|  | 1627 |  | 
|  | 1628 | L(gobble_ashr_13): | 
|  | 1629 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1630 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1631 | movdqa	%xmm2, %xmm4 | 
|  | 1632 |  | 
|  | 1633 | palignr	$13, %xmm3, %xmm2 | 
|  | 1634 |  | 
|  | 1635 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1636 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1637 | psubb	%xmm0, %xmm1 | 
|  | 1638 | pmovmskb %xmm1, %esi | 
|  | 1639 | sub	$0xffff, %esi | 
|  | 1640 | jnz	L(exit) | 
|  | 1641 |  | 
|  | 1642 | #ifdef USE_AS_STRNCMP | 
|  | 1643 | cmp	$16, %ebp | 
|  | 1644 | lea	-16(%ebp), %ebp | 
|  | 1645 | jbe	L(more8byteseq) | 
|  | 1646 | #endif | 
|  | 1647 | add	$16, %ecx | 
|  | 1648 | movdqa	%xmm4, %xmm3 | 
|  | 1649 |  | 
|  | 1650 | add	$16, %edi | 
|  | 1651 | jg	L(nibble_ashr_13) | 
|  | 1652 |  | 
|  | 1653 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1654 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1655 | movdqa	%xmm2, %xmm4 | 
|  | 1656 |  | 
|  | 1657 | palignr	$13, %xmm3, %xmm2 | 
|  | 1658 |  | 
|  | 1659 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1660 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1661 | psubb	%xmm0, %xmm1 | 
|  | 1662 | pmovmskb %xmm1, %esi | 
|  | 1663 | sub	$0xffff, %esi | 
|  | 1664 | jnz	L(exit) | 
|  | 1665 |  | 
|  | 1666 | #ifdef USE_AS_STRNCMP | 
|  | 1667 | cmp	$16, %ebp | 
|  | 1668 | lea	-16(%ebp), %ebp | 
|  | 1669 | jbe	L(more8byteseq) | 
|  | 1670 | #endif | 
|  | 1671 | add	$16, %ecx | 
|  | 1672 | movdqa	%xmm4, %xmm3 | 
|  | 1673 | jmp	L(loop_ashr_13) | 
|  | 1674 |  | 
|  | 1675 | .p2align 4 | 
|  | 1676 | L(nibble_ashr_13): | 
|  | 1677 | pcmpeqb	%xmm3, %xmm0 | 
|  | 1678 | pmovmskb %xmm0, %esi | 
|  | 1679 | test	$0xe000, %esi | 
|  | 1680 | jnz	L(ashr_13_exittail) | 
|  | 1681 |  | 
|  | 1682 | #ifdef USE_AS_STRNCMP | 
|  | 1683 | cmp	$3, %ebp | 
|  | 1684 | jbe	L(ashr_13_exittail) | 
|  | 1685 | #endif | 
|  | 1686 | pxor	%xmm0, %xmm0 | 
|  | 1687 | sub	$0x1000, %edi | 
|  | 1688 | jmp	L(gobble_ashr_13) | 
|  | 1689 |  | 
|  | 1690 | .p2align 4 | 
|  | 1691 | L(ashr_13_exittail): | 
|  | 1692 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1693 | psrldq	$13, %xmm0 | 
|  | 1694 | psrldq	$13, %xmm3 | 
|  | 1695 | jmp	L(aftertail) | 
|  | 1696 |  | 
|  | 1697 | /* | 
|  | 1698 | * The following cases will be handled by ashr_14 | 
|  | 1699 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 1700 | *        n(2~15)            n - 2            13(15 +(n-2) - n)         ashr_14 | 
|  | 1701 | */ | 
|  | 1702 | .p2align 4 | 
|  | 1703 | L(ashr_14): | 
|  | 1704 | mov	$0xffff, %esi | 
|  | 1705 | pxor	%xmm0, %xmm0 | 
|  | 1706 | movdqa	(%edx), %xmm2 | 
|  | 1707 | movdqa	(%eax), %xmm1 | 
|  | 1708 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1709 | pslldq	$2, %xmm2 | 
|  | 1710 | pcmpeqb	%xmm1, %xmm2 | 
|  | 1711 | psubb	%xmm0, %xmm2 | 
|  | 1712 | pmovmskb %xmm2, %edi | 
|  | 1713 | shr	%cl, %esi | 
|  | 1714 | shr	%cl, %edi | 
|  | 1715 | sub	%edi, %esi | 
|  | 1716 | lea	-2(%ecx), %edi | 
|  | 1717 | jnz	L(less32bytes) | 
|  | 1718 |  | 
|  | 1719 | UPDATE_STRNCMP_COUNTER | 
|  | 1720 |  | 
|  | 1721 | movdqa	(%edx), %xmm3 | 
|  | 1722 | pxor	%xmm0, %xmm0 | 
|  | 1723 | mov	$16, %ecx | 
|  | 1724 | or	$14, %ebx | 
|  | 1725 | lea	14(%edx), %edi | 
|  | 1726 | and	$0xfff, %edi | 
|  | 1727 | sub	$0x1000, %edi | 
|  | 1728 |  | 
|  | 1729 | .p2align 4 | 
|  | 1730 | L(loop_ashr_14): | 
|  | 1731 | add	$16, %edi | 
|  | 1732 | jg	L(nibble_ashr_14) | 
|  | 1733 |  | 
|  | 1734 | L(gobble_ashr_14): | 
|  | 1735 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1736 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1737 | movdqa	%xmm2, %xmm4 | 
|  | 1738 |  | 
|  | 1739 | palignr	$14, %xmm3, %xmm2 | 
|  | 1740 |  | 
|  | 1741 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1742 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1743 | psubb	%xmm0, %xmm1 | 
|  | 1744 | pmovmskb %xmm1, %esi | 
|  | 1745 | sub	$0xffff, %esi | 
|  | 1746 | jnz	L(exit) | 
|  | 1747 |  | 
|  | 1748 | #ifdef USE_AS_STRNCMP | 
|  | 1749 | cmp	$16, %ebp | 
|  | 1750 | lea	-16(%ebp), %ebp | 
|  | 1751 | jbe	L(more8byteseq) | 
|  | 1752 | #endif | 
|  | 1753 | add	$16, %ecx | 
|  | 1754 | movdqa	%xmm4, %xmm3 | 
|  | 1755 |  | 
|  | 1756 | add	$16, %edi | 
|  | 1757 | jg	L(nibble_ashr_14) | 
|  | 1758 |  | 
|  | 1759 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1760 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1761 | movdqa	%xmm2, %xmm4 | 
|  | 1762 |  | 
|  | 1763 | palignr	$14, %xmm3, %xmm2 | 
|  | 1764 |  | 
|  | 1765 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1766 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1767 | psubb	%xmm0, %xmm1 | 
|  | 1768 | pmovmskb %xmm1, %esi | 
|  | 1769 | sub	$0xffff, %esi | 
|  | 1770 | jnz	L(exit) | 
|  | 1771 |  | 
|  | 1772 | #ifdef USE_AS_STRNCMP | 
|  | 1773 | cmp	$16, %ebp | 
|  | 1774 | lea	-16(%ebp), %ebp | 
|  | 1775 | jbe	L(more8byteseq) | 
|  | 1776 | #endif | 
|  | 1777 | add	$16, %ecx | 
|  | 1778 | movdqa	%xmm4, %xmm3 | 
|  | 1779 | jmp	L(loop_ashr_14) | 
|  | 1780 |  | 
|  | 1781 | .p2align 4 | 
|  | 1782 | L(nibble_ashr_14): | 
|  | 1783 | pcmpeqb	%xmm3, %xmm0 | 
|  | 1784 | pmovmskb %xmm0, %esi | 
|  | 1785 | test	$0xc000, %esi | 
|  | 1786 | jnz	L(ashr_14_exittail) | 
|  | 1787 |  | 
|  | 1788 | #ifdef USE_AS_STRNCMP | 
|  | 1789 | cmp	$2, %ebp | 
|  | 1790 | jbe	L(ashr_14_exittail) | 
|  | 1791 | #endif | 
|  | 1792 | pxor	%xmm0, %xmm0 | 
|  | 1793 | sub	$0x1000, %edi | 
|  | 1794 | jmp	L(gobble_ashr_14) | 
|  | 1795 |  | 
|  | 1796 | .p2align 4 | 
|  | 1797 | L(ashr_14_exittail): | 
|  | 1798 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1799 | psrldq	$14, %xmm0 | 
|  | 1800 | psrldq	$14, %xmm3 | 
|  | 1801 | jmp	L(aftertail) | 
|  | 1802 |  | 
|  | 1803 | /* | 
|  | 1804 | * The following cases will be handled by ashr_14 | 
|  | 1805 | * ecx(offset of esi)  eax(offset of edi)   relative offset   	corresponding case | 
|  | 1806 | *        n(1~15)            n - 1            14(15 +(n-1) - n)         ashr_15 | 
|  | 1807 | */ | 
|  | 1808 |  | 
|  | 1809 | .p2align 4 | 
|  | 1810 | L(ashr_15): | 
|  | 1811 | mov	$0xffff, %esi | 
|  | 1812 | pxor	%xmm0, %xmm0 | 
|  | 1813 | movdqa	(%edx), %xmm2 | 
|  | 1814 | movdqa	(%eax), %xmm1 | 
|  | 1815 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1816 | pslldq	$1, %xmm2 | 
|  | 1817 | pcmpeqb	%xmm1, %xmm2 | 
|  | 1818 | psubb	%xmm0, %xmm2 | 
|  | 1819 | pmovmskb %xmm2, %edi | 
|  | 1820 | shr	%cl, %esi | 
|  | 1821 | shr	%cl, %edi | 
|  | 1822 | sub	%edi, %esi | 
|  | 1823 | lea	-1(%ecx), %edi | 
|  | 1824 | jnz	L(less32bytes) | 
|  | 1825 |  | 
|  | 1826 | UPDATE_STRNCMP_COUNTER | 
|  | 1827 |  | 
|  | 1828 | movdqa	(%edx), %xmm3 | 
|  | 1829 | pxor	%xmm0, %xmm0 | 
|  | 1830 | mov	$16, %ecx | 
|  | 1831 | or	$15, %ebx | 
|  | 1832 | lea	15(%edx), %edi | 
|  | 1833 | and	$0xfff, %edi | 
|  | 1834 | sub	$0x1000, %edi | 
|  | 1835 |  | 
|  | 1836 | .p2align 4 | 
|  | 1837 | L(loop_ashr_15): | 
|  | 1838 | add	$16, %edi | 
|  | 1839 | jg	L(nibble_ashr_15) | 
|  | 1840 |  | 
|  | 1841 | L(gobble_ashr_15): | 
|  | 1842 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1843 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1844 | movdqa	%xmm2, %xmm4 | 
|  | 1845 |  | 
|  | 1846 | palignr	$15, %xmm3, %xmm2 | 
|  | 1847 |  | 
|  | 1848 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1849 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1850 | psubb	%xmm0, %xmm1 | 
|  | 1851 | pmovmskb %xmm1, %esi | 
|  | 1852 | sub	$0xffff, %esi | 
|  | 1853 | jnz	L(exit) | 
|  | 1854 |  | 
|  | 1855 | #ifdef USE_AS_STRNCMP | 
|  | 1856 | cmp	$16, %ebp | 
|  | 1857 | lea	-16(%ebp), %ebp | 
|  | 1858 | jbe	L(more8byteseq) | 
|  | 1859 | #endif | 
|  | 1860 | add	$16, %ecx | 
|  | 1861 | movdqa	%xmm4, %xmm3 | 
|  | 1862 |  | 
|  | 1863 | add	$16, %edi | 
|  | 1864 | jg	L(nibble_ashr_15) | 
|  | 1865 |  | 
|  | 1866 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1867 | movdqa	(%edx, %ecx), %xmm2 | 
|  | 1868 | movdqa	%xmm2, %xmm4 | 
|  | 1869 |  | 
|  | 1870 | palignr	$15, %xmm3, %xmm2 | 
|  | 1871 |  | 
|  | 1872 | pcmpeqb	%xmm1, %xmm0 | 
|  | 1873 | pcmpeqb	%xmm2, %xmm1 | 
|  | 1874 | psubb	%xmm0, %xmm1 | 
|  | 1875 | pmovmskb %xmm1, %esi | 
|  | 1876 | sub	$0xffff, %esi | 
|  | 1877 | jnz	L(exit) | 
|  | 1878 |  | 
|  | 1879 | #ifdef USE_AS_STRNCMP | 
|  | 1880 | cmp	$16, %ebp | 
|  | 1881 | lea	-16(%ebp), %ebp | 
|  | 1882 | jbe	L(more8byteseq) | 
|  | 1883 | #endif | 
|  | 1884 | add	$16, %ecx | 
|  | 1885 | movdqa	%xmm4, %xmm3 | 
|  | 1886 | jmp	L(loop_ashr_15) | 
|  | 1887 |  | 
|  | 1888 | .p2align 4 | 
|  | 1889 | L(nibble_ashr_15): | 
|  | 1890 | pcmpeqb	%xmm3, %xmm0 | 
|  | 1891 | pmovmskb %xmm0, %esi | 
|  | 1892 | test	$0x8000, %esi | 
|  | 1893 | jnz	L(ashr_15_exittail) | 
|  | 1894 |  | 
|  | 1895 | #ifdef USE_AS_STRNCMP | 
|  | 1896 | cmp	$1, %ebp | 
|  | 1897 | jbe	L(ashr_15_exittail) | 
|  | 1898 | #endif | 
|  | 1899 | pxor	%xmm0, %xmm0 | 
|  | 1900 | sub	$0x1000, %edi | 
|  | 1901 | jmp	L(gobble_ashr_15) | 
|  | 1902 |  | 
|  | 1903 | .p2align 4 | 
|  | 1904 | L(ashr_15_exittail): | 
|  | 1905 | movdqa	(%eax, %ecx), %xmm1 | 
|  | 1906 | psrldq	$15, %xmm0 | 
|  | 1907 | psrldq	$15, %xmm3 | 
|  | 1908 | jmp	L(aftertail) | 
|  | 1909 |  | 
|  | 1910 | .p2align 4 | 
|  | 1911 | L(aftertail): | 
|  | 1912 | pcmpeqb	%xmm3, %xmm1 | 
|  | 1913 | psubb	%xmm0, %xmm1 | 
|  | 1914 | pmovmskb %xmm1, %esi | 
|  | 1915 | not	%esi | 
|  | 1916 | L(exit): | 
|  | 1917 | mov	%ebx, %edi | 
|  | 1918 | and	$0x1f, %edi | 
|  | 1919 | lea	-16(%edi, %ecx), %edi | 
|  | 1920 | L(less32bytes): | 
|  | 1921 | add	%edi, %edx | 
|  | 1922 | add	%ecx, %eax | 
|  | 1923 | test	$0x20, %ebx | 
|  | 1924 | jz	L(ret2) | 
|  | 1925 | xchg	%eax, %edx | 
|  | 1926 |  | 
|  | 1927 | .p2align 4 | 
|  | 1928 | L(ret2): | 
|  | 1929 | mov	%esi, %ecx | 
|  | 1930 | POP	(%esi) | 
|  | 1931 | POP	(%edi) | 
|  | 1932 | POP	(%ebx) | 
|  | 1933 | L(less16bytes): | 
|  | 1934 | test	%cl, %cl | 
|  | 1935 | jz	L(2next_8_bytes) | 
|  | 1936 |  | 
|  | 1937 | test	$0x01, %cl | 
|  | 1938 | jnz	L(Byte0) | 
|  | 1939 |  | 
|  | 1940 | test	$0x02, %cl | 
|  | 1941 | jnz	L(Byte1) | 
|  | 1942 |  | 
|  | 1943 | test	$0x04, %cl | 
|  | 1944 | jnz	L(Byte2) | 
|  | 1945 |  | 
|  | 1946 | test	$0x08, %cl | 
|  | 1947 | jnz	L(Byte3) | 
|  | 1948 |  | 
|  | 1949 | test	$0x10, %cl | 
|  | 1950 | jnz	L(Byte4) | 
|  | 1951 |  | 
|  | 1952 | test	$0x20, %cl | 
|  | 1953 | jnz	L(Byte5) | 
|  | 1954 |  | 
|  | 1955 | test	$0x40, %cl | 
|  | 1956 | jnz	L(Byte6) | 
|  | 1957 | #ifdef USE_AS_STRNCMP | 
|  | 1958 | cmp	$7, %ebp | 
|  | 1959 | jbe	L(eq) | 
|  | 1960 | #endif | 
|  | 1961 |  | 
|  | 1962 | movzx	7(%eax), %ecx | 
|  | 1963 | movzx	7(%edx), %eax | 
|  | 1964 |  | 
|  | 1965 | sub	%ecx, %eax | 
|  | 1966 | RETURN | 
|  | 1967 |  | 
|  | 1968 | .p2align 4 | 
|  | 1969 | L(Byte0): | 
|  | 1970 | #ifdef USE_AS_STRNCMP | 
|  | 1971 | cmp	$0, %ebp | 
|  | 1972 | jbe	L(eq) | 
|  | 1973 | #endif | 
|  | 1974 | movzx	(%eax), %ecx | 
|  | 1975 | movzx	(%edx), %eax | 
|  | 1976 |  | 
|  | 1977 | sub	%ecx, %eax | 
|  | 1978 | RETURN | 
|  | 1979 |  | 
|  | 1980 | .p2align 4 | 
|  | 1981 | L(Byte1): | 
|  | 1982 | #ifdef USE_AS_STRNCMP | 
|  | 1983 | cmp	$1, %ebp | 
|  | 1984 | jbe	L(eq) | 
|  | 1985 | #endif | 
|  | 1986 | movzx	1(%eax), %ecx | 
|  | 1987 | movzx	1(%edx), %eax | 
|  | 1988 |  | 
|  | 1989 | sub	%ecx, %eax | 
|  | 1990 | RETURN | 
|  | 1991 |  | 
|  | 1992 | .p2align 4 | 
|  | 1993 | L(Byte2): | 
|  | 1994 | #ifdef USE_AS_STRNCMP | 
|  | 1995 | cmp	$2, %ebp | 
|  | 1996 | jbe	L(eq) | 
|  | 1997 | #endif | 
|  | 1998 | movzx	2(%eax), %ecx | 
|  | 1999 | movzx	2(%edx), %eax | 
|  | 2000 |  | 
|  | 2001 | sub	%ecx, %eax | 
|  | 2002 | RETURN | 
|  | 2003 |  | 
|  | 2004 | .p2align 4 | 
|  | 2005 | L(Byte3): | 
|  | 2006 | #ifdef USE_AS_STRNCMP | 
|  | 2007 | cmp	$3, %ebp | 
|  | 2008 | jbe	L(eq) | 
|  | 2009 | #endif | 
|  | 2010 | movzx	3(%eax), %ecx | 
|  | 2011 | movzx	3(%edx), %eax | 
|  | 2012 |  | 
|  | 2013 | sub	%ecx, %eax | 
|  | 2014 | RETURN | 
|  | 2015 |  | 
|  | 2016 | .p2align 4 | 
|  | 2017 | L(Byte4): | 
|  | 2018 | #ifdef USE_AS_STRNCMP | 
|  | 2019 | cmp	$4, %ebp | 
|  | 2020 | jbe	L(eq) | 
|  | 2021 | #endif | 
|  | 2022 | movzx	4(%eax), %ecx | 
|  | 2023 | movzx	4(%edx), %eax | 
|  | 2024 |  | 
|  | 2025 | sub	%ecx, %eax | 
|  | 2026 | RETURN | 
|  | 2027 |  | 
|  | 2028 | .p2align 4 | 
|  | 2029 | L(Byte5): | 
|  | 2030 | #ifdef USE_AS_STRNCMP | 
|  | 2031 | cmp	$5, %ebp | 
|  | 2032 | jbe	L(eq) | 
|  | 2033 | #endif | 
|  | 2034 | movzx	5(%eax), %ecx | 
|  | 2035 | movzx	5(%edx), %eax | 
|  | 2036 |  | 
|  | 2037 | sub	%ecx, %eax | 
|  | 2038 | RETURN | 
|  | 2039 |  | 
|  | 2040 | .p2align 4 | 
|  | 2041 | L(Byte6): | 
|  | 2042 | #ifdef USE_AS_STRNCMP | 
|  | 2043 | cmp	$6, %ebp | 
|  | 2044 | jbe	L(eq) | 
|  | 2045 | #endif | 
|  | 2046 | movzx	6(%eax), %ecx | 
|  | 2047 | movzx	6(%edx), %eax | 
|  | 2048 |  | 
|  | 2049 | sub	%ecx, %eax | 
|  | 2050 | RETURN | 
|  | 2051 |  | 
|  | 2052 | .p2align 4 | 
|  | 2053 | L(2next_8_bytes): | 
|  | 2054 | add	$8, %eax | 
|  | 2055 | add	$8, %edx | 
|  | 2056 | #ifdef USE_AS_STRNCMP | 
|  | 2057 | cmp	$8, %ebp | 
|  | 2058 | lea	-8(%ebp), %ebp | 
|  | 2059 | jbe	L(eq) | 
|  | 2060 | #endif | 
|  | 2061 |  | 
|  | 2062 | test	$0x01, %ch | 
|  | 2063 | jnz	L(Byte0) | 
|  | 2064 |  | 
|  | 2065 | test	$0x02, %ch | 
|  | 2066 | jnz	L(Byte1) | 
|  | 2067 |  | 
|  | 2068 | test	$0x04, %ch | 
|  | 2069 | jnz	L(Byte2) | 
|  | 2070 |  | 
|  | 2071 | test	$0x08, %ch | 
|  | 2072 | jnz	L(Byte3) | 
|  | 2073 |  | 
|  | 2074 | test	$0x10, %ch | 
|  | 2075 | jnz	L(Byte4) | 
|  | 2076 |  | 
|  | 2077 | test	$0x20, %ch | 
|  | 2078 | jnz	L(Byte5) | 
|  | 2079 |  | 
|  | 2080 | test	$0x40, %ch | 
|  | 2081 | jnz	L(Byte6) | 
|  | 2082 |  | 
|  | 2083 | #ifdef USE_AS_STRNCMP | 
|  | 2084 | cmp	$7, %ebp | 
|  | 2085 | jbe	L(eq) | 
|  | 2086 | #endif | 
|  | 2087 | movzx	7(%eax), %ecx | 
|  | 2088 | movzx	7(%edx), %eax | 
|  | 2089 |  | 
|  | 2090 | sub	%ecx, %eax | 
|  | 2091 | RETURN | 
|  | 2092 |  | 
|  | 2093 | .p2align 4 | 
|  | 2094 | L(neq): | 
|  | 2095 | mov	$1, %eax | 
|  | 2096 | ja	L(neq_bigger) | 
|  | 2097 | neg	%eax | 
|  | 2098 | L(neq_bigger): | 
|  | 2099 | RETURN | 
|  | 2100 |  | 
|  | 2101 | #ifdef USE_AS_STRNCMP | 
| Bruce Beare | 124a542 | 2010-10-11 12:24:41 -0700 | [diff] [blame] | 2102 | cfi_restore_state | 
| Bruce Beare | 8ff1a27 | 2010-03-04 11:03:37 -0800 | [diff] [blame] | 2103 | .p2align 4 | 
|  | 2104 | L(more8byteseq): | 
|  | 2105 | POP	(%esi) | 
|  | 2106 | POP	(%edi) | 
|  | 2107 | POP	(%ebx) | 
|  | 2108 | #endif | 
|  | 2109 |  | 
|  | 2110 | L(eq): | 
|  | 2111 |  | 
|  | 2112 | #ifdef USE_AS_STRNCMP | 
|  | 2113 | POP	(%ebp) | 
|  | 2114 | #endif | 
|  | 2115 | xorl	%eax, %eax | 
|  | 2116 | ret | 
|  | 2117 |  | 
|  | 2118 | #ifdef USE_AS_STRNCMP | 
|  | 2119 | CFI_PUSH (%ebp) | 
|  | 2120 |  | 
|  | 2121 | .p2align 4 | 
|  | 2122 | L(less16bytes_sncmp): | 
|  | 2123 | test	%ebp, %ebp | 
|  | 2124 | jz	L(eq) | 
|  | 2125 |  | 
|  | 2126 | movzbl	(%eax), %ecx | 
|  | 2127 | cmpb	%cl, (%edx) | 
|  | 2128 | jne	L(neq) | 
|  | 2129 | test	%cl, %cl | 
|  | 2130 | je	L(eq) | 
|  | 2131 |  | 
|  | 2132 | cmp	$1, %ebp | 
|  | 2133 | je	L(eq) | 
|  | 2134 |  | 
|  | 2135 | movzbl	1(%eax), %ecx | 
|  | 2136 | cmpb	%cl, 1(%edx) | 
|  | 2137 | jne	L(neq) | 
|  | 2138 | test	%cl, %cl | 
|  | 2139 | je	L(eq) | 
|  | 2140 |  | 
|  | 2141 | cmp	$2, %ebp | 
|  | 2142 | je	L(eq) | 
|  | 2143 |  | 
|  | 2144 | movzbl	2(%eax), %ecx | 
|  | 2145 | cmpb	%cl, 2(%edx) | 
|  | 2146 | jne	L(neq) | 
|  | 2147 | test	%cl, %cl | 
|  | 2148 | je	L(eq) | 
|  | 2149 |  | 
|  | 2150 | cmp	$3, %ebp | 
|  | 2151 | je	L(eq) | 
|  | 2152 |  | 
|  | 2153 | movzbl	3(%eax), %ecx | 
|  | 2154 | cmpb	%cl, 3(%edx) | 
|  | 2155 | jne	L(neq) | 
|  | 2156 | test	%cl, %cl | 
|  | 2157 | je	L(eq) | 
|  | 2158 |  | 
|  | 2159 | cmp	$4, %ebp | 
|  | 2160 | je	L(eq) | 
|  | 2161 |  | 
|  | 2162 | movzbl	4(%eax), %ecx | 
|  | 2163 | cmpb	%cl, 4(%edx) | 
|  | 2164 | jne	L(neq) | 
|  | 2165 | test	%cl, %cl | 
|  | 2166 | je	L(eq) | 
|  | 2167 |  | 
|  | 2168 | cmp	$5, %ebp | 
|  | 2169 | je	L(eq) | 
|  | 2170 |  | 
|  | 2171 | movzbl	5(%eax), %ecx | 
|  | 2172 | cmpb	%cl, 5(%edx) | 
|  | 2173 | jne	L(neq) | 
|  | 2174 | test	%cl, %cl | 
|  | 2175 | je	L(eq) | 
|  | 2176 |  | 
|  | 2177 | cmp	$6, %ebp | 
|  | 2178 | je	L(eq) | 
|  | 2179 |  | 
|  | 2180 | movzbl	6(%eax), %ecx | 
|  | 2181 | cmpb	%cl, 6(%edx) | 
|  | 2182 | jne	L(neq) | 
|  | 2183 | test	%cl, %cl | 
|  | 2184 | je	L(eq) | 
|  | 2185 |  | 
|  | 2186 | cmp	$7, %ebp | 
|  | 2187 | je	L(eq) | 
|  | 2188 |  | 
|  | 2189 | movzbl	7(%eax), %ecx | 
|  | 2190 | cmpb	%cl, 7(%edx) | 
|  | 2191 | jne	L(neq) | 
|  | 2192 | test	%cl, %cl | 
|  | 2193 | je	L(eq) | 
|  | 2194 |  | 
|  | 2195 |  | 
|  | 2196 | cmp	$8, %ebp | 
|  | 2197 | je	L(eq) | 
|  | 2198 |  | 
|  | 2199 | movzbl	8(%eax), %ecx | 
|  | 2200 | cmpb	%cl, 8(%edx) | 
|  | 2201 | jne	L(neq) | 
|  | 2202 | test	%cl, %cl | 
|  | 2203 | je	L(eq) | 
|  | 2204 |  | 
|  | 2205 | cmp	$9, %ebp | 
|  | 2206 | je	L(eq) | 
|  | 2207 |  | 
|  | 2208 | movzbl	9(%eax), %ecx | 
|  | 2209 | cmpb	%cl, 9(%edx) | 
|  | 2210 | jne	L(neq) | 
|  | 2211 | test	%cl, %cl | 
|  | 2212 | je	L(eq) | 
|  | 2213 |  | 
|  | 2214 | cmp	$10, %ebp | 
|  | 2215 | je	L(eq) | 
|  | 2216 |  | 
|  | 2217 | movzbl	10(%eax), %ecx | 
|  | 2218 | cmpb	%cl, 10(%edx) | 
|  | 2219 | jne	L(neq) | 
|  | 2220 | test	%cl, %cl | 
|  | 2221 | je	L(eq) | 
|  | 2222 |  | 
|  | 2223 | cmp	$11, %ebp | 
|  | 2224 | je	L(eq) | 
|  | 2225 |  | 
|  | 2226 | movzbl	11(%eax), %ecx | 
|  | 2227 | cmpb	%cl, 11(%edx) | 
|  | 2228 | jne	L(neq) | 
|  | 2229 | test	%cl, %cl | 
|  | 2230 | je	L(eq) | 
|  | 2231 |  | 
|  | 2232 |  | 
|  | 2233 | cmp	$12, %ebp | 
|  | 2234 | je	L(eq) | 
|  | 2235 |  | 
|  | 2236 | movzbl	12(%eax), %ecx | 
|  | 2237 | cmpb	%cl, 12(%edx) | 
|  | 2238 | jne	L(neq) | 
|  | 2239 | test	%cl, %cl | 
|  | 2240 | je	L(eq) | 
|  | 2241 |  | 
|  | 2242 | cmp	$13, %ebp | 
|  | 2243 | je	L(eq) | 
|  | 2244 |  | 
|  | 2245 | movzbl	13(%eax), %ecx | 
|  | 2246 | cmpb	%cl, 13(%edx) | 
|  | 2247 | jne	L(neq) | 
|  | 2248 | test	%cl, %cl | 
|  | 2249 | je	L(eq) | 
|  | 2250 |  | 
|  | 2251 | cmp	$14, %ebp | 
|  | 2252 | je	L(eq) | 
|  | 2253 |  | 
|  | 2254 | movzbl	14(%eax), %ecx | 
|  | 2255 | cmpb	%cl, 14(%edx) | 
|  | 2256 | jne	L(neq) | 
|  | 2257 | test	%cl, %cl | 
|  | 2258 | je	L(eq) | 
|  | 2259 |  | 
|  | 2260 | cmp	$15, %ebp | 
|  | 2261 | je	L(eq) | 
|  | 2262 |  | 
|  | 2263 | movzbl	15(%eax), %ecx | 
|  | 2264 | cmpb	%cl, 15(%edx) | 
|  | 2265 | jne	L(neq) | 
|  | 2266 | test	%cl, %cl | 
|  | 2267 | je	L(eq) | 
|  | 2268 |  | 
|  | 2269 | POP	(%ebp) | 
|  | 2270 | xor	%eax, %eax | 
|  | 2271 | ret | 
|  | 2272 | #endif | 
|  | 2273 |  | 
|  | 2274 | END (ssse3_strcmp_latest) |