1 #!/usr/bin/env perl 2 3 # ==================================================================== 4 # [Re]written by Andy Polyakov <appro (at] openssl.org> for the OpenSSL 5 # project. The module is, however, dual licensed under OpenSSL and 6 # CRYPTOGAMS licenses depending on where you obtain it. For further 7 # details see http://www.openssl.org/~appro/cryptogams/. 8 # ==================================================================== 9 10 # "[Re]written" was achieved in two major overhauls. In 2004 BODY_* 11 # functions were re-implemented to address P4 performance issue [see 12 # commentary below], and in 2006 the rest was rewritten in order to 13 # gain freedom to liberate licensing terms. 14 15 # January, September 2004. 16 # 17 # It was noted that Intel IA-32 C compiler generates code which 18 # performs ~30% *faster* on P4 CPU than original *hand-coded* 19 # SHA1 assembler implementation. To address this problem (and 20 # prove that humans are still better than machines:-), the 21 # original code was overhauled, which resulted in following 22 # performance changes: 23 # 24 # compared with original compared with Intel cc 25 # assembler impl. generated code 26 # Pentium -16% +48% 27 # PIII/AMD +8% +16% 28 # P4 +85%(!) +45% 29 # 30 # As you can see Pentium came out as looser:-( Yet I reckoned that 31 # improvement on P4 outweights the loss and incorporate this 32 # re-tuned code to 0.9.7 and later. 33 # ---------------------------------------------------------------- 34 # <appro (at] fy.chalmers.se> 35 36 # August 2009. 37 # 38 # George Spelvin has tipped that F_40_59(b,c,d) can be rewritten as 39 # '(c&d) + (b&(c^d))', which allows to accumulate partial results 40 # and lighten "pressure" on scratch registers. This resulted in 41 # >12% performance improvement on contemporary AMD cores (with no 42 # degradation on other CPUs:-). Also, the code was revised to maximize 43 # "distance" between instructions producing input to 'lea' instruction 44 # and the 'lea' instruction itself, which is essential for Intel Atom 45 # core and resulted in ~15% improvement. 46 47 # October 2010. 48 # 49 # Add SSSE3, Supplemental[!] SSE3, implementation. The idea behind it 50 # is to offload message schedule denoted by Wt in NIST specification, 51 # or Xupdate in OpenSSL source, to SIMD unit. The idea is not novel, 52 # and in SSE2 context was first explored by Dean Gaudet in 2004, see 53 # http://arctic.org/~dean/crypto/sha1.html. Since then several things 54 # have changed that made it interesting again: 55 # 56 # a) XMM units became faster and wider; 57 # b) instruction set became more versatile; 58 # c) an important observation was made by Max Locktykhin, which made 59 # it possible to reduce amount of instructions required to perform 60 # the operation in question, for further details see 61 # http://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1/. 62 63 # April 2011. 64 # 65 # Add AVX code path, probably most controversial... The thing is that 66 # switch to AVX alone improves performance by as little as 4% in 67 # comparison to SSSE3 code path. But below result doesn't look like 68 # 4% improvement... Trouble is that Sandy Bridge decodes 'ro[rl]' as 69 # pair of -ops, and it's the additional -ops, two per round, that 70 # make it run slower than Core2 and Westmere. But 'sh[rl]d' is decoded 71 # as single -op by Sandy Bridge and it's replacing 'ro[rl]' with 72 # equivalent 'sh[rl]d' that is responsible for the impressive 5.1 73 # cycles per processed byte. But 'sh[rl]d' is not something that used 74 # to be fast, nor does it appear to be fast in upcoming Bulldozer 75 # [according to its optimization manual]. Which is why AVX code path 76 # is guarded by *both* AVX and synthetic bit denoting Intel CPUs. 77 # One can argue that it's unfair to AMD, but without 'sh[rl]d' it 78 # makes no sense to keep the AVX code path. If somebody feels that 79 # strongly, it's probably more appropriate to discuss possibility of 80 # using vector rotate XOP on AMD... 81 82 # March 2014. 83 # 84 # Add support for Intel SHA Extensions. 85 86 ###################################################################### 87 # Current performance is summarized in following table. Numbers are 88 # CPU clock cycles spent to process single byte (less is better). 89 # 90 # x86 SSSE3 AVX 91 # Pentium 15.7 - 92 # PIII 11.5 - 93 # P4 10.6 - 94 # AMD K8 7.1 - 95 # Core2 7.3 6.0/+22% - 96 # Atom 12.5 9.3(*)/+35% - 97 # Westmere 7.3 5.5/+33% - 98 # Sandy Bridge 8.8 6.2/+40% 5.1(**)/+73% 99 # Ivy Bridge 7.2 4.8/+51% 4.7(**)/+53% 100 # Haswell 6.5 4.3/+51% 4.1(**)/+58% 101 # Bulldozer 11.6 6.0/+92% 102 # VIA Nano 10.6 7.5/+41% 103 # 104 # (*) Loop is 1056 instructions long and expected result is ~8.25. 105 # It remains mystery [to me] why ILP is limited to 1.7. 106 # 107 # (**) As per above comment, the result is for AVX *plus* sh[rl]d. 108 109 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; 110 push(@INC,"${dir}","${dir}../../perlasm"); 111 require "x86asm.pl"; 112 113 &asm_init($ARGV[0],"sha1-586.pl",$ARGV[$#ARGV] eq "386"); 114 115 $xmm=$ymm=0; 116 for (@ARGV) { $xmm=1 if (/-DOPENSSL_IA32_SSE2/); } 117 118 $ymm=1 if ($xmm && 119 `$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1` 120 =~ /GNU assembler version ([2-9]\.[0-9]+)/ && 121 $1>=2.19); # first version supporting AVX 122 123 $ymm=1 if ($xmm && !$ymm && $ARGV[0] eq "win32n" && 124 `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/ && 125 $1>=2.03); # first version supporting AVX 126 127 $ymm=1 if ($xmm && !$ymm && $ARGV[0] eq "win32" && 128 `ml 2>&1` =~ /Version ([0-9]+)\./ && 129 $1>=10); # first version supporting AVX 130 131 $ymm=1 if ($xmm && !$ymm && `$ENV{CC} -v 2>&1` =~ /(^clang version|based on LLVM) ([3-9]\.[0-9]+)/ && 132 $2>=3.0); # first version supporting AVX 133 134 $shaext=$xmm; ### set to zero if compiling for 1.0.1 135 136 &external_label("OPENSSL_ia32cap_P") if ($xmm); 137 138 139 $A="eax"; 140 $B="ebx"; 141 $C="ecx"; 142 $D="edx"; 143 $E="edi"; 144 $T="esi"; 145 $tmp1="ebp"; 146 147 @V=($A,$B,$C,$D,$E,$T); 148 149 $alt=0; # 1 denotes alternative IALU implementation, which performs 150 # 8% *worse* on P4, same on Westmere and Atom, 2% better on 151 # Sandy Bridge... 152 153 sub BODY_00_15 154 { 155 local($n,$a,$b,$c,$d,$e,$f)=@_; 156 157 &comment("00_15 $n"); 158 159 &mov($f,$c); # f to hold F_00_19(b,c,d) 160 if ($n==0) { &mov($tmp1,$a); } 161 else { &mov($a,$tmp1); } 162 &rotl($tmp1,5); # tmp1=ROTATE(a,5) 163 &xor($f,$d); 164 &add($tmp1,$e); # tmp1+=e; 165 &mov($e,&swtmp($n%16)); # e becomes volatile and is loaded 166 # with xi, also note that e becomes 167 # f in next round... 168 &and($f,$b); 169 &rotr($b,2); # b=ROTATE(b,30) 170 &xor($f,$d); # f holds F_00_19(b,c,d) 171 &lea($tmp1,&DWP(0x5a827999,$tmp1,$e)); # tmp1+=K_00_19+xi 172 173 if ($n==15) { &mov($e,&swtmp(($n+1)%16));# pre-fetch f for next round 174 &add($f,$tmp1); } # f+=tmp1 175 else { &add($tmp1,$f); } # f becomes a in next round 176 &mov($tmp1,$a) if ($alt && $n==15); 177 } 178 179 sub BODY_16_19 180 { 181 local($n,$a,$b,$c,$d,$e,$f)=@_; 182 183 &comment("16_19 $n"); 184 185 if ($alt) { 186 &xor($c,$d); 187 &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd) 188 &and($tmp1,$c); # tmp1 to hold F_00_19(b,c,d), b&=c^d 189 &xor($f,&swtmp(($n+8)%16)); 190 &xor($tmp1,$d); # tmp1=F_00_19(b,c,d) 191 &xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd 192 &rotl($f,1); # f=ROTATE(f,1) 193 &add($e,$tmp1); # e+=F_00_19(b,c,d) 194 &xor($c,$d); # restore $c 195 &mov($tmp1,$a); # b in next round 196 &rotr($b,$n==16?2:7); # b=ROTATE(b,30) 197 &mov(&swtmp($n%16),$f); # xi=f 198 &rotl($a,5); # ROTATE(a,5) 199 &lea($f,&DWP(0x5a827999,$f,$e));# f+=F_00_19(b,c,d)+e 200 &mov($e,&swtmp(($n+1)%16)); # pre-fetch f for next round 201 &add($f,$a); # f+=ROTATE(a,5) 202 } else { 203 &mov($tmp1,$c); # tmp1 to hold F_00_19(b,c,d) 204 &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd) 205 &xor($tmp1,$d); 206 &xor($f,&swtmp(($n+8)%16)); 207 &and($tmp1,$b); 208 &xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd 209 &rotl($f,1); # f=ROTATE(f,1) 210 &xor($tmp1,$d); # tmp1=F_00_19(b,c,d) 211 &add($e,$tmp1); # e+=F_00_19(b,c,d) 212 &mov($tmp1,$a); 213 &rotr($b,2); # b=ROTATE(b,30) 214 &mov(&swtmp($n%16),$f); # xi=f 215 &rotl($tmp1,5); # ROTATE(a,5) 216 &lea($f,&DWP(0x5a827999,$f,$e));# f+=F_00_19(b,c,d)+e 217 &mov($e,&swtmp(($n+1)%16)); # pre-fetch f for next round 218 &add($f,$tmp1); # f+=ROTATE(a,5) 219 } 220 } 221 222 sub BODY_20_39 223 { 224 local($n,$a,$b,$c,$d,$e,$f)=@_; 225 local $K=($n<40)?0x6ed9eba1:0xca62c1d6; 226 227 &comment("20_39 $n"); 228 229 if ($alt) { 230 &xor($tmp1,$c); # tmp1 to hold F_20_39(b,c,d), b^=c 231 &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd) 232 &xor($tmp1,$d); # tmp1 holds F_20_39(b,c,d) 233 &xor($f,&swtmp(($n+8)%16)); 234 &add($e,$tmp1); # e+=F_20_39(b,c,d) 235 &xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd 236 &rotl($f,1); # f=ROTATE(f,1) 237 &mov($tmp1,$a); # b in next round 238 &rotr($b,7); # b=ROTATE(b,30) 239 &mov(&swtmp($n%16),$f) if($n<77);# xi=f 240 &rotl($a,5); # ROTATE(a,5) 241 &xor($b,$c) if($n==39);# warm up for BODY_40_59 242 &and($tmp1,$b) if($n==39); 243 &lea($f,&DWP($K,$f,$e)); # f+=e+K_XX_YY 244 &mov($e,&swtmp(($n+1)%16)) if($n<79);# pre-fetch f for next round 245 &add($f,$a); # f+=ROTATE(a,5) 246 &rotr($a,5) if ($n==79); 247 } else { 248 &mov($tmp1,$b); # tmp1 to hold F_20_39(b,c,d) 249 &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd) 250 &xor($tmp1,$c); 251 &xor($f,&swtmp(($n+8)%16)); 252 &xor($tmp1,$d); # tmp1 holds F_20_39(b,c,d) 253 &xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd 254 &rotl($f,1); # f=ROTATE(f,1) 255 &add($e,$tmp1); # e+=F_20_39(b,c,d) 256 &rotr($b,2); # b=ROTATE(b,30) 257 &mov($tmp1,$a); 258 &rotl($tmp1,5); # ROTATE(a,5) 259 &mov(&swtmp($n%16),$f) if($n<77);# xi=f 260 &lea($f,&DWP($K,$f,$e)); # f+=e+K_XX_YY 261 &mov($e,&swtmp(($n+1)%16)) if($n<79);# pre-fetch f for next round 262 &add($f,$tmp1); # f+=ROTATE(a,5) 263 } 264 } 265 266 sub BODY_40_59 267 { 268 local($n,$a,$b,$c,$d,$e,$f)=@_; 269 270 &comment("40_59 $n"); 271 272 if ($alt) { 273 &add($e,$tmp1); # e+=b&(c^d) 274 &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd) 275 &mov($tmp1,$d); 276 &xor($f,&swtmp(($n+8)%16)); 277 &xor($c,$d); # restore $c 278 &xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd 279 &rotl($f,1); # f=ROTATE(f,1) 280 &and($tmp1,$c); 281 &rotr($b,7); # b=ROTATE(b,30) 282 &add($e,$tmp1); # e+=c&d 283 &mov($tmp1,$a); # b in next round 284 &mov(&swtmp($n%16),$f); # xi=f 285 &rotl($a,5); # ROTATE(a,5) 286 &xor($b,$c) if ($n<59); 287 &and($tmp1,$b) if ($n<59);# tmp1 to hold F_40_59(b,c,d) 288 &lea($f,&DWP(0x8f1bbcdc,$f,$e));# f+=K_40_59+e+(b&(c^d)) 289 &mov($e,&swtmp(($n+1)%16)); # pre-fetch f for next round 290 &add($f,$a); # f+=ROTATE(a,5) 291 } else { 292 &mov($tmp1,$c); # tmp1 to hold F_40_59(b,c,d) 293 &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd) 294 &xor($tmp1,$d); 295 &xor($f,&swtmp(($n+8)%16)); 296 &and($tmp1,$b); 297 &xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd 298 &rotl($f,1); # f=ROTATE(f,1) 299 &add($tmp1,$e); # b&(c^d)+=e 300 &rotr($b,2); # b=ROTATE(b,30) 301 &mov($e,$a); # e becomes volatile 302 &rotl($e,5); # ROTATE(a,5) 303 &mov(&swtmp($n%16),$f); # xi=f 304 &lea($f,&DWP(0x8f1bbcdc,$f,$tmp1));# f+=K_40_59+e+(b&(c^d)) 305 &mov($tmp1,$c); 306 &add($f,$e); # f+=ROTATE(a,5) 307 &and($tmp1,$d); 308 &mov($e,&swtmp(($n+1)%16)); # pre-fetch f for next round 309 &add($f,$tmp1); # f+=c&d 310 } 311 } 312 313 &function_begin("sha1_block_data_order"); 314 if ($xmm) { 315 &static_label("shaext_shortcut") if ($shaext); 316 &static_label("ssse3_shortcut"); 317 &static_label("avx_shortcut") if ($ymm); 318 &static_label("K_XX_XX"); 319 320 &call (&label("pic_point")); # make it PIC! 321 &set_label("pic_point"); 322 &blindpop($tmp1); 323 &picmeup($T,"OPENSSL_ia32cap_P",$tmp1,&label("pic_point")); 324 &lea ($tmp1,&DWP(&label("K_XX_XX")."-".&label("pic_point"),$tmp1)); 325 326 &mov ($A,&DWP(0,$T)); 327 &mov ($D,&DWP(4,$T)); 328 &test ($D,1<<9); # check SSSE3 bit 329 &jz (&label("x86")); 330 &mov ($C,&DWP(8,$T)); 331 &test ($A,1<<24); # check FXSR bit 332 &jz (&label("x86")); 333 if ($shaext) { 334 &test ($C,1<<29); # check SHA bit 335 &jnz (&label("shaext_shortcut")); 336 } 337 if ($ymm) { 338 &and ($D,1<<28); # mask AVX bit 339 &and ($A,1<<30); # mask "Intel CPU" bit 340 &or ($A,$D); 341 &cmp ($A,1<<28|1<<30); 342 &je (&label("avx_shortcut")); 343 } 344 &jmp (&label("ssse3_shortcut")); 345 &set_label("x86",16); 346 } 347 &mov($tmp1,&wparam(0)); # SHA_CTX *c 348 &mov($T,&wparam(1)); # const void *input 349 &mov($A,&wparam(2)); # size_t num 350 &stack_push(16+3); # allocate X[16] 351 &shl($A,6); 352 &add($A,$T); 353 &mov(&wparam(2),$A); # pointer beyond the end of input 354 &mov($E,&DWP(16,$tmp1));# pre-load E 355 &jmp(&label("loop")); 356 357 &set_label("loop",16); 358 359 # copy input chunk to X, but reversing byte order! 360 for ($i=0; $i<16; $i+=4) 361 { 362 &mov($A,&DWP(4*($i+0),$T)); 363 &mov($B,&DWP(4*($i+1),$T)); 364 &mov($C,&DWP(4*($i+2),$T)); 365 &mov($D,&DWP(4*($i+3),$T)); 366 &bswap($A); 367 &bswap($B); 368 &bswap($C); 369 &bswap($D); 370 &mov(&swtmp($i+0),$A); 371 &mov(&swtmp($i+1),$B); 372 &mov(&swtmp($i+2),$C); 373 &mov(&swtmp($i+3),$D); 374 } 375 &mov(&wparam(1),$T); # redundant in 1st spin 376 377 &mov($A,&DWP(0,$tmp1)); # load SHA_CTX 378 &mov($B,&DWP(4,$tmp1)); 379 &mov($C,&DWP(8,$tmp1)); 380 &mov($D,&DWP(12,$tmp1)); 381 # E is pre-loaded 382 383 for($i=0;$i<16;$i++) { &BODY_00_15($i,@V); unshift(@V,pop(@V)); } 384 for(;$i<20;$i++) { &BODY_16_19($i,@V); unshift(@V,pop(@V)); } 385 for(;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } 386 for(;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); } 387 for(;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } 388 389 (($V[5] eq $D) and ($V[0] eq $E)) or die; # double-check 390 391 &mov($tmp1,&wparam(0)); # re-load SHA_CTX* 392 &mov($D,&wparam(1)); # D is last "T" and is discarded 393 394 &add($E,&DWP(0,$tmp1)); # E is last "A"... 395 &add($T,&DWP(4,$tmp1)); 396 &add($A,&DWP(8,$tmp1)); 397 &add($B,&DWP(12,$tmp1)); 398 &add($C,&DWP(16,$tmp1)); 399 400 &mov(&DWP(0,$tmp1),$E); # update SHA_CTX 401 &add($D,64); # advance input pointer 402 &mov(&DWP(4,$tmp1),$T); 403 &cmp($D,&wparam(2)); # have we reached the end yet? 404 &mov(&DWP(8,$tmp1),$A); 405 &mov($E,$C); # C is last "E" which needs to be "pre-loaded" 406 &mov(&DWP(12,$tmp1),$B); 407 &mov($T,$D); # input pointer 408 &mov(&DWP(16,$tmp1),$C); 409 &jb(&label("loop")); 410 411 &stack_pop(16+3); 412 &function_end("sha1_block_data_order"); 413 414 if ($xmm) { 415 if ($shaext) { 416 ###################################################################### 417 # Intel SHA Extensions implementation of SHA1 update function. 418 # 419 my ($ctx,$inp,$num)=("edi","esi","ecx"); 420 my ($ABCD,$E,$E_,$BSWAP)=map("xmm$_",(0..3)); 421 my @MSG=map("xmm$_",(4..7)); 422 423 sub sha1rnds4 { 424 my ($dst,$src,$imm)=@_; 425 if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/) 426 { &data_byte(0x0f,0x3a,0xcc,0xc0|($1<<3)|$2,$imm); } 427 } 428 sub sha1op38 { 429 my ($opcodelet,$dst,$src)=@_; 430 if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/) 431 { &data_byte(0x0f,0x38,$opcodelet,0xc0|($1<<3)|$2); } 432 } 433 sub sha1nexte { sha1op38(0xc8,@_); } 434 sub sha1msg1 { sha1op38(0xc9,@_); } 435 sub sha1msg2 { sha1op38(0xca,@_); } 436 437 &function_begin("_sha1_block_data_order_shaext"); 438 &call (&label("pic_point")); # make it PIC! 439 &set_label("pic_point"); 440 &blindpop($tmp1); 441 &lea ($tmp1,&DWP(&label("K_XX_XX")."-".&label("pic_point"),$tmp1)); 442 &set_label("shaext_shortcut"); 443 &mov ($ctx,&wparam(0)); 444 &mov ("ebx","esp"); 445 &mov ($inp,&wparam(1)); 446 &mov ($num,&wparam(2)); 447 &sub ("esp",32); 448 449 &movdqu ($ABCD,&QWP(0,$ctx)); 450 &movd ($E,&QWP(16,$ctx)); 451 &and ("esp",-32); 452 &movdqa ($BSWAP,&QWP(0x50,$tmp1)); # byte-n-word swap 453 454 &movdqu (@MSG[0],&QWP(0,$inp)); 455 &pshufd ($ABCD,$ABCD,0b00011011); # flip word order 456 &movdqu (@MSG[1],&QWP(0x10,$inp)); 457 &pshufd ($E,$E,0b00011011); # flip word order 458 &movdqu (@MSG[2],&QWP(0x20,$inp)); 459 &pshufb (@MSG[0],$BSWAP); 460 &movdqu (@MSG[3],&QWP(0x30,$inp)); 461 &pshufb (@MSG[1],$BSWAP); 462 &pshufb (@MSG[2],$BSWAP); 463 &pshufb (@MSG[3],$BSWAP); 464 &jmp (&label("loop_shaext")); 465 466 &set_label("loop_shaext",16); 467 &dec ($num); 468 &lea ("eax",&DWP(0x40,$inp)); 469 &movdqa (&QWP(0,"esp"),$E); # offload $E 470 &paddd ($E,@MSG[0]); 471 &cmovne ($inp,"eax"); 472 &movdqa (&QWP(16,"esp"),$ABCD); # offload $ABCD 473 474 for($i=0;$i<20-4;$i+=2) { 475 &sha1msg1 (@MSG[0],@MSG[1]); 476 &movdqa ($E_,$ABCD); 477 &sha1rnds4 ($ABCD,$E,int($i/5)); # 0-3... 478 &sha1nexte ($E_,@MSG[1]); 479 &pxor (@MSG[0],@MSG[2]); 480 &sha1msg1 (@MSG[1],@MSG[2]); 481 &sha1msg2 (@MSG[0],@MSG[3]); 482 483 &movdqa ($E,$ABCD); 484 &sha1rnds4 ($ABCD,$E_,int(($i+1)/5)); 485 &sha1nexte ($E,@MSG[2]); 486 &pxor (@MSG[1],@MSG[3]); 487 &sha1msg2 (@MSG[1],@MSG[0]); 488 489 push(@MSG,shift(@MSG)); push(@MSG,shift(@MSG)); 490 } 491 &movdqu (@MSG[0],&QWP(0,$inp)); 492 &movdqa ($E_,$ABCD); 493 &sha1rnds4 ($ABCD,$E,3); # 64-67 494 &sha1nexte ($E_,@MSG[1]); 495 &movdqu (@MSG[1],&QWP(0x10,$inp)); 496 &pshufb (@MSG[0],$BSWAP); 497 498 &movdqa ($E,$ABCD); 499 &sha1rnds4 ($ABCD,$E_,3); # 68-71 500 &sha1nexte ($E,@MSG[2]); 501 &movdqu (@MSG[2],&QWP(0x20,$inp)); 502 &pshufb (@MSG[1],$BSWAP); 503 504 &movdqa ($E_,$ABCD); 505 &sha1rnds4 ($ABCD,$E,3); # 72-75 506 &sha1nexte ($E_,@MSG[3]); 507 &movdqu (@MSG[3],&QWP(0x30,$inp)); 508 &pshufb (@MSG[2],$BSWAP); 509 510 &movdqa ($E,$ABCD); 511 &sha1rnds4 ($ABCD,$E_,3); # 76-79 512 &movdqa ($E_,&QWP(0,"esp")); 513 &pshufb (@MSG[3],$BSWAP); 514 &sha1nexte ($E,$E_); 515 &paddd ($ABCD,&QWP(16,"esp")); 516 517 &jnz (&label("loop_shaext")); 518 519 &pshufd ($ABCD,$ABCD,0b00011011); 520 &pshufd ($E,$E,0b00011011); 521 &movdqu (&QWP(0,$ctx),$ABCD) 522 &movd (&DWP(16,$ctx),$E); 523 &mov ("esp","ebx"); 524 &function_end("_sha1_block_data_order_shaext"); 525 } 526 ###################################################################### 527 # The SSSE3 implementation. 528 # 529 # %xmm[0-7] are used as ring @X[] buffer containing quadruples of last 530 # 32 elements of the message schedule or Xupdate outputs. First 4 531 # quadruples are simply byte-swapped input, next 4 are calculated 532 # according to method originally suggested by Dean Gaudet (modulo 533 # being implemented in SSSE3). Once 8 quadruples or 32 elements are 534 # collected, it switches to routine proposed by Max Locktyukhin. 535 # 536 # Calculations inevitably require temporary reqisters, and there are 537 # no %xmm registers left to spare. For this reason part of the ring 538 # buffer, X[2..4] to be specific, is offloaded to 3 quadriples ring 539 # buffer on the stack. Keep in mind that X[2] is alias X[-6], X[3] - 540 # X[-5], and X[4] - X[-4]... 541 # 542 # Another notable optimization is aggressive stack frame compression 543 # aiming to minimize amount of 9-byte instructions... 544 # 545 # Yet another notable optimization is "jumping" $B variable. It means 546 # that there is no register permanently allocated for $B value. This 547 # allowed to eliminate one instruction from body_20_39... 548 # 549 my $Xi=4; # 4xSIMD Xupdate round, start pre-seeded 550 my @X=map("xmm$_",(4..7,0..3)); # pre-seeded for $Xi=4 551 my @V=($A,$B,$C,$D,$E); 552 my $j=0; # hash round 553 my $rx=0; 554 my @T=($T,$tmp1); 555 my $inp; 556 557 my $_rol=sub { &rol(@_) }; 558 my $_ror=sub { &ror(@_) }; 559 560 &function_begin("_sha1_block_data_order_ssse3"); 561 &call (&label("pic_point")); # make it PIC! 562 &set_label("pic_point"); 563 &blindpop($tmp1); 564 &lea ($tmp1,&DWP(&label("K_XX_XX")."-".&label("pic_point"),$tmp1)); 565 &set_label("ssse3_shortcut"); 566 567 &movdqa (@X[3],&QWP(0,$tmp1)); # K_00_19 568 &movdqa (@X[4],&QWP(16,$tmp1)); # K_20_39 569 &movdqa (@X[5],&QWP(32,$tmp1)); # K_40_59 570 &movdqa (@X[6],&QWP(48,$tmp1)); # K_60_79 571 &movdqa (@X[2],&QWP(64,$tmp1)); # pbswap mask 572 573 &mov ($E,&wparam(0)); # load argument block 574 &mov ($inp=@T[1],&wparam(1)); 575 &mov ($D,&wparam(2)); 576 &mov (@T[0],"esp"); 577 578 # stack frame layout 579 # 580 # +0 X[0]+K X[1]+K X[2]+K X[3]+K # XMM->IALU xfer area 581 # X[4]+K X[5]+K X[6]+K X[7]+K 582 # X[8]+K X[9]+K X[10]+K X[11]+K 583 # X[12]+K X[13]+K X[14]+K X[15]+K 584 # 585 # +64 X[0] X[1] X[2] X[3] # XMM->XMM backtrace area 586 # X[4] X[5] X[6] X[7] 587 # X[8] X[9] X[10] X[11] # even borrowed for K_00_19 588 # 589 # +112 K_20_39 K_20_39 K_20_39 K_20_39 # constants 590 # K_40_59 K_40_59 K_40_59 K_40_59 591 # K_60_79 K_60_79 K_60_79 K_60_79 592 # K_00_19 K_00_19 K_00_19 K_00_19 593 # pbswap mask 594 # 595 # +192 ctx # argument block 596 # +196 inp 597 # +200 end 598 # +204 esp 599 &sub ("esp",208); 600 &and ("esp",-64); 601 602 &movdqa (&QWP(112+0,"esp"),@X[4]); # copy constants 603 &movdqa (&QWP(112+16,"esp"),@X[5]); 604 &movdqa (&QWP(112+32,"esp"),@X[6]); 605 &shl ($D,6); # len*64 606 &movdqa (&QWP(112+48,"esp"),@X[3]); 607 &add ($D,$inp); # end of input 608 &movdqa (&QWP(112+64,"esp"),@X[2]); 609 &add ($inp,64); 610 &mov (&DWP(192+0,"esp"),$E); # save argument block 611 &mov (&DWP(192+4,"esp"),$inp); 612 &mov (&DWP(192+8,"esp"),$D); 613 &mov (&DWP(192+12,"esp"),@T[0]); # save original %esp 614 615 &mov ($A,&DWP(0,$E)); # load context 616 &mov ($B,&DWP(4,$E)); 617 &mov ($C,&DWP(8,$E)); 618 &mov ($D,&DWP(12,$E)); 619 &mov ($E,&DWP(16,$E)); 620 &mov (@T[0],$B); # magic seed 621 622 &movdqu (@X[-4&7],&QWP(-64,$inp)); # load input to %xmm[0-3] 623 &movdqu (@X[-3&7],&QWP(-48,$inp)); 624 &movdqu (@X[-2&7],&QWP(-32,$inp)); 625 &movdqu (@X[-1&7],&QWP(-16,$inp)); 626 &pshufb (@X[-4&7],@X[2]); # byte swap 627 &pshufb (@X[-3&7],@X[2]); 628 &pshufb (@X[-2&7],@X[2]); 629 &movdqa (&QWP(112-16,"esp"),@X[3]); # borrow last backtrace slot 630 &pshufb (@X[-1&7],@X[2]); 631 &paddd (@X[-4&7],@X[3]); # add K_00_19 632 &paddd (@X[-3&7],@X[3]); 633 &paddd (@X[-2&7],@X[3]); 634 &movdqa (&QWP(0,"esp"),@X[-4&7]); # X[]+K xfer to IALU 635 &psubd (@X[-4&7],@X[3]); # restore X[] 636 &movdqa (&QWP(0+16,"esp"),@X[-3&7]); 637 &psubd (@X[-3&7],@X[3]); 638 &movdqa (&QWP(0+32,"esp"),@X[-2&7]); 639 &mov (@T[1],$C); 640 &psubd (@X[-2&7],@X[3]); 641 &xor (@T[1],$D); 642 &pshufd (@X[0],@X[-4&7],0xee); # was &movdqa (@X[0],@X[-3&7]); 643 &and (@T[0],@T[1]); 644 &jmp (&label("loop")); 645 646 ###################################################################### 647 # SSE instruction sequence is first broken to groups of indepentent 648 # instructions, independent in respect to their inputs and shifter 649 # (not all architectures have more than one). Then IALU instructions 650 # are "knitted in" between the SSE groups. Distance is maintained for 651 # SSE latency of 2 in hope that it fits better upcoming AMD Bulldozer 652 # [which allegedly also implements SSSE3]... 653 # 654 # Temporary registers usage. X[2] is volatile at the entry and at the 655 # end is restored from backtrace ring buffer. X[3] is expected to 656 # contain current K_XX_XX constant and is used to caclulate X[-1]+K 657 # from previous round, it becomes volatile the moment the value is 658 # saved to stack for transfer to IALU. X[4] becomes volatile whenever 659 # X[-4] is accumulated and offloaded to backtrace ring buffer, at the 660 # end it is loaded with next K_XX_XX [which becomes X[3] in next 661 # round]... 662 # 663 sub Xupdate_ssse3_16_31() # recall that $Xi starts wtih 4 664 { use integer; 665 my $body = shift; 666 my @insns = (&$body,&$body,&$body,&$body); # 40 instructions 667 my ($a,$b,$c,$d,$e); 668 669 eval(shift(@insns)); # ror 670 eval(shift(@insns)); 671 eval(shift(@insns)); 672 &punpcklqdq(@X[0],@X[-3&7]); # compose "X[-14]" in "X[0]", was &palignr(@X[0],@X[-4&7],8); 673 &movdqa (@X[2],@X[-1&7]); 674 eval(shift(@insns)); 675 eval(shift(@insns)); 676 677 &paddd (@X[3],@X[-1&7]); 678 &movdqa (&QWP(64+16*(($Xi-4)%3),"esp"),@X[-4&7]);# save X[] to backtrace buffer 679 eval(shift(@insns)); # rol 680 eval(shift(@insns)); 681 &psrldq (@X[2],4); # "X[-3]", 3 dwords 682 eval(shift(@insns)); 683 eval(shift(@insns)); 684 &pxor (@X[0],@X[-4&7]); # "X[0]"^="X[-16]" 685 eval(shift(@insns)); 686 eval(shift(@insns)); # ror 687 688 &pxor (@X[2],@X[-2&7]); # "X[-3]"^"X[-8]" 689 eval(shift(@insns)); 690 eval(shift(@insns)); 691 eval(shift(@insns)); 692 693 &pxor (@X[0],@X[2]); # "X[0]"^="X[-3]"^"X[-8]" 694 eval(shift(@insns)); 695 eval(shift(@insns)); # rol 696 &movdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer to IALU 697 eval(shift(@insns)); 698 eval(shift(@insns)); 699 700 &movdqa (@X[4],@X[0]); 701 eval(shift(@insns)); 702 eval(shift(@insns)); 703 eval(shift(@insns)); # ror 704 &movdqa (@X[2],@X[0]); 705 eval(shift(@insns)); 706 707 &pslldq (@X[4],12); # "X[0]"<<96, extract one dword 708 &paddd (@X[0],@X[0]); 709 eval(shift(@insns)); 710 eval(shift(@insns)); 711 712 &psrld (@X[2],31); 713 eval(shift(@insns)); 714 eval(shift(@insns)); # rol 715 &movdqa (@X[3],@X[4]); 716 eval(shift(@insns)); 717 eval(shift(@insns)); 718 eval(shift(@insns)); 719 720 &psrld (@X[4],30); 721 eval(shift(@insns)); 722 eval(shift(@insns)); # ror 723 &por (@X[0],@X[2]); # "X[0]"<<<=1 724 eval(shift(@insns)); 725 &movdqa (@X[2],&QWP(64+16*(($Xi-6)%3),"esp")) if ($Xi>5); # restore X[] from backtrace buffer 726 eval(shift(@insns)); 727 eval(shift(@insns)); 728 729 &pslld (@X[3],2); 730 eval(shift(@insns)); 731 eval(shift(@insns)); # rol 732 &pxor (@X[0],@X[4]); 733 &movdqa (@X[4],&QWP(112-16+16*(($Xi)/5),"esp")); # K_XX_XX 734 eval(shift(@insns)); 735 eval(shift(@insns)); 736 737 &pxor (@X[0],@X[3]); # "X[0]"^=("X[0]"<<96)<<<2 738 &pshufd (@X[1],@X[-3&7],0xee) if ($Xi<7); # was &movdqa (@X[1],@X[-2&7]) 739 &pshufd (@X[3],@X[-1&7],0xee) if ($Xi==7); 740 eval(shift(@insns)); 741 eval(shift(@insns)); 742 743 foreach (@insns) { eval; } # remaining instructions [if any] 744 745 $Xi++; push(@X,shift(@X)); # "rotate" X[] 746 } 747 748 sub Xupdate_ssse3_32_79() 749 { use integer; 750 my $body = shift; 751 my @insns = (&$body,&$body,&$body,&$body); # 32 to 44 instructions 752 my ($a,$b,$c,$d,$e); 753 754 eval(shift(@insns)); # body_20_39 755 &pxor (@X[0],@X[-4&7]); # "X[0]"="X[-32]"^"X[-16]" 756 &punpcklqdq(@X[2],@X[-1&7]); # compose "X[-6]", was &palignr(@X[2],@X[-2&7],8) 757 eval(shift(@insns)); 758 eval(shift(@insns)); 759 eval(shift(@insns)); # rol 760 761 &pxor (@X[0],@X[-7&7]); # "X[0]"^="X[-28]" 762 &movdqa (&QWP(64+16*(($Xi-4)%3),"esp"),@X[-4&7]); # save X[] to backtrace buffer 763 eval(shift(@insns)); 764 eval(shift(@insns)); 765 eval(shift(@insns)) if (@insns[0] =~ /_rol/); 766 if ($Xi%5) { 767 &movdqa (@X[4],@X[3]); # "perpetuate" K_XX_XX... 768 } else { # ... or load next one 769 &movdqa (@X[4],&QWP(112-16+16*($Xi/5),"esp")); 770 } 771 eval(shift(@insns)); # ror 772 &paddd (@X[3],@X[-1&7]); 773 eval(shift(@insns)); 774 775 &pxor (@X[0],@X[2]); # "X[0]"^="X[-6]" 776 eval(shift(@insns)); # body_20_39 777 eval(shift(@insns)); 778 eval(shift(@insns)); 779 eval(shift(@insns)); # rol 780 781 &movdqa (@X[2],@X[0]); 782 &movdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer to IALU 783 eval(shift(@insns)); 784 eval(shift(@insns)); 785 eval(shift(@insns)); # ror 786 eval(shift(@insns)); 787 eval(shift(@insns)) if (@insns[0] =~ /_rol/); 788 789 &pslld (@X[0],2); 790 eval(shift(@insns)); # body_20_39 791 eval(shift(@insns)); 792 &psrld (@X[2],30); 793 eval(shift(@insns)); 794 eval(shift(@insns)); # rol 795 eval(shift(@insns)); 796 eval(shift(@insns)); 797 eval(shift(@insns)); # ror 798 eval(shift(@insns)); 799 eval(shift(@insns)) if (@insns[1] =~ /_rol/); 800 eval(shift(@insns)) if (@insns[0] =~ /_rol/); 801 802 &por (@X[0],@X[2]); # "X[0]"<<<=2 803 eval(shift(@insns)); # body_20_39 804 eval(shift(@insns)); 805 &movdqa (@X[2],&QWP(64+16*(($Xi-6)%3),"esp")) if($Xi<19); # restore X[] from backtrace buffer 806 eval(shift(@insns)); 807 eval(shift(@insns)); # rol 808 eval(shift(@insns)); 809 eval(shift(@insns)); 810 eval(shift(@insns)); # ror 811 &pshufd (@X[3],@X[-1],0xee) if ($Xi<19); # was &movdqa (@X[3],@X[0]) 812 eval(shift(@insns)); 813 814 foreach (@insns) { eval; } # remaining instructions 815 816 $Xi++; push(@X,shift(@X)); # "rotate" X[] 817 } 818 819 sub Xuplast_ssse3_80() 820 { use integer; 821 my $body = shift; 822 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions 823 my ($a,$b,$c,$d,$e); 824 825 eval(shift(@insns)); 826 eval(shift(@insns)); 827 eval(shift(@insns)); 828 eval(shift(@insns)); 829 eval(shift(@insns)); 830 eval(shift(@insns)); 831 eval(shift(@insns)); 832 &paddd (@X[3],@X[-1&7]); 833 eval(shift(@insns)); 834 eval(shift(@insns)); 835 eval(shift(@insns)); 836 eval(shift(@insns)); 837 838 &movdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer IALU 839 840 foreach (@insns) { eval; } # remaining instructions 841 842 &mov ($inp=@T[1],&DWP(192+4,"esp")); 843 &cmp ($inp,&DWP(192+8,"esp")); 844 &je (&label("done")); 845 846 &movdqa (@X[3],&QWP(112+48,"esp")); # K_00_19 847 &movdqa (@X[2],&QWP(112+64,"esp")); # pbswap mask 848 &movdqu (@X[-4&7],&QWP(0,$inp)); # load input 849 &movdqu (@X[-3&7],&QWP(16,$inp)); 850 &movdqu (@X[-2&7],&QWP(32,$inp)); 851 &movdqu (@X[-1&7],&QWP(48,$inp)); 852 &add ($inp,64); 853 &pshufb (@X[-4&7],@X[2]); # byte swap 854 &mov (&DWP(192+4,"esp"),$inp); 855 &movdqa (&QWP(112-16,"esp"),@X[3]); # borrow last backtrace slot 856 857 $Xi=0; 858 } 859 860 sub Xloop_ssse3() 861 { use integer; 862 my $body = shift; 863 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions 864 my ($a,$b,$c,$d,$e); 865 866 eval(shift(@insns)); 867 eval(shift(@insns)); 868 eval(shift(@insns)); 869 eval(shift(@insns)); 870 eval(shift(@insns)); 871 eval(shift(@insns)); 872 eval(shift(@insns)); 873 &pshufb (@X[($Xi-3)&7],@X[2]); 874 eval(shift(@insns)); 875 eval(shift(@insns)); 876 eval(shift(@insns)); 877 eval(shift(@insns)); 878 &paddd (@X[($Xi-4)&7],@X[3]); 879 eval(shift(@insns)); 880 eval(shift(@insns)); 881 eval(shift(@insns)); 882 eval(shift(@insns)); 883 &movdqa (&QWP(0+16*$Xi,"esp"),@X[($Xi-4)&7]); # X[]+K xfer to IALU 884 eval(shift(@insns)); 885 eval(shift(@insns)); 886 eval(shift(@insns)); 887 eval(shift(@insns)); 888 &psubd (@X[($Xi-4)&7],@X[3]); 889 890 foreach (@insns) { eval; } 891 $Xi++; 892 } 893 894 sub Xtail_ssse3() 895 { use integer; 896 my $body = shift; 897 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions 898 my ($a,$b,$c,$d,$e); 899 900 foreach (@insns) { eval; } 901 } 902 903 sub body_00_19 () { # ((c^d)&b)^d 904 # on start @T[0]=(c^d)&b 905 return &body_20_39() if ($rx==19); $rx++; 906 ( 907 '($a,$b,$c,$d,$e)=@V;'. 908 '&$_ror ($b,$j?7:2);', # $b>>>2 909 '&xor (@T[0],$d);', 910 '&mov (@T[1],$a);', # $b in next round 911 912 '&add ($e,&DWP(4*($j&15),"esp"));', # X[]+K xfer 913 '&xor ($b,$c);', # $c^$d for next round 914 915 '&$_rol ($a,5);', 916 '&add ($e,@T[0]);', 917 '&and (@T[1],$b);', # ($b&($c^$d)) for next round 918 919 '&xor ($b,$c);', # restore $b 920 '&add ($e,$a);' .'$j++; unshift(@V,pop(@V)); unshift(@T,pop(@T));' 921 ); 922 } 923 924 sub body_20_39 () { # b^d^c 925 # on entry @T[0]=b^d 926 return &body_40_59() if ($rx==39); $rx++; 927 ( 928 '($a,$b,$c,$d,$e)=@V;'. 929 '&add ($e,&DWP(4*($j&15),"esp"));', # X[]+K xfer 930 '&xor (@T[0],$d) if($j==19);'. 931 '&xor (@T[0],$c) if($j> 19);', # ($b^$d^$c) 932 '&mov (@T[1],$a);', # $b in next round 933 934 '&$_rol ($a,5);', 935 '&add ($e,@T[0]);', 936 '&xor (@T[1],$c) if ($j< 79);', # $b^$d for next round 937 938 '&$_ror ($b,7);', # $b>>>2 939 '&add ($e,$a);' .'$j++; unshift(@V,pop(@V)); unshift(@T,pop(@T));' 940 ); 941 } 942 943 sub body_40_59 () { # ((b^c)&(c^d))^c 944 # on entry @T[0]=(b^c), (c^=d) 945 $rx++; 946 ( 947 '($a,$b,$c,$d,$e)=@V;'. 948 '&add ($e,&DWP(4*($j&15),"esp"));', # X[]+K xfer 949 '&and (@T[0],$c) if ($j>=40);', # (b^c)&(c^d) 950 '&xor ($c,$d) if ($j>=40);', # restore $c 951 952 '&$_ror ($b,7);', # $b>>>2 953 '&mov (@T[1],$a);', # $b for next round 954 '&xor (@T[0],$c);', 955 956 '&$_rol ($a,5);', 957 '&add ($e,@T[0]);', 958 '&xor (@T[1],$c) if ($j==59);'. 959 '&xor (@T[1],$b) if ($j< 59);', # b^c for next round 960 961 '&xor ($b,$c) if ($j< 59);', # c^d for next round 962 '&add ($e,$a);' .'$j++; unshift(@V,pop(@V)); unshift(@T,pop(@T));' 963 ); 964 } 965 ###### 966 sub bodyx_00_19 () { # ((c^d)&b)^d 967 # on start @T[0]=(b&c)^(~b&d), $e+=X[]+K 968 return &bodyx_20_39() if ($rx==19); $rx++; 969 ( 970 '($a,$b,$c,$d,$e)=@V;'. 971 972 '&rorx ($b,$b,2) if ($j==0);'. # $b>>>2 973 '&rorx ($b,@T[1],7) if ($j!=0);', # $b>>>2 974 '&lea ($e,&DWP(0,$e,@T[0]));', 975 '&rorx (@T[0],$a,5);', 976 977 '&andn (@T[1],$a,$c);', 978 '&and ($a,$b)', 979 '&add ($d,&DWP(4*(($j+1)&15),"esp"));', # X[]+K xfer 980 981 '&xor (@T[1],$a)', 982 '&add ($e,@T[0]);' .'$j++; unshift(@V,pop(@V)); unshift(@T,pop(@T));' 983 ); 984 } 985 986 sub bodyx_20_39 () { # b^d^c 987 # on start $b=b^c^d 988 return &bodyx_40_59() if ($rx==39); $rx++; 989 ( 990 '($a,$b,$c,$d,$e)=@V;'. 991 992 '&add ($e,($j==19?@T[0]:$b))', 993 '&rorx ($b,@T[1],7);', # $b>>>2 994 '&rorx (@T[0],$a,5);', 995 996 '&xor ($a,$b) if ($j<79);', 997 '&add ($d,&DWP(4*(($j+1)&15),"esp")) if ($j<79);', # X[]+K xfer 998 '&xor ($a,$c) if ($j<79);', 999 '&add ($e,@T[0]);' .'$j++; unshift(@V,pop(@V)); unshift(@T,pop(@T));' 1000 ); 1001 } 1002 1003 sub bodyx_40_59 () { # ((b^c)&(c^d))^c 1004 # on start $b=((b^c)&(c^d))^c 1005 return &bodyx_20_39() if ($rx==59); $rx++; 1006 ( 1007 '($a,$b,$c,$d,$e)=@V;'. 1008 1009 '&rorx (@T[0],$a,5)', 1010 '&lea ($e,&DWP(0,$e,$b))', 1011 '&rorx ($b,@T[1],7)', # $b>>>2 1012 '&add ($d,&DWP(4*(($j+1)&15),"esp"))', # X[]+K xfer 1013 1014 '&mov (@T[1],$c)', 1015 '&xor ($a,$b)', # b^c for next round 1016 '&xor (@T[1],$b)', # c^d for next round 1017 1018 '&and ($a,@T[1])', 1019 '&add ($e,@T[0])', 1020 '&xor ($a,$b)' .'$j++; unshift(@V,pop(@V)); unshift(@T,pop(@T));' 1021 ); 1022 } 1023 1024 &set_label("loop",16); 1025 &Xupdate_ssse3_16_31(\&body_00_19); 1026 &Xupdate_ssse3_16_31(\&body_00_19); 1027 &Xupdate_ssse3_16_31(\&body_00_19); 1028 &Xupdate_ssse3_16_31(\&body_00_19); 1029 &Xupdate_ssse3_32_79(\&body_00_19); 1030 &Xupdate_ssse3_32_79(\&body_20_39); 1031 &Xupdate_ssse3_32_79(\&body_20_39); 1032 &Xupdate_ssse3_32_79(\&body_20_39); 1033 &Xupdate_ssse3_32_79(\&body_20_39); 1034 &Xupdate_ssse3_32_79(\&body_20_39); 1035 &Xupdate_ssse3_32_79(\&body_40_59); 1036 &Xupdate_ssse3_32_79(\&body_40_59); 1037 &Xupdate_ssse3_32_79(\&body_40_59); 1038 &Xupdate_ssse3_32_79(\&body_40_59); 1039 &Xupdate_ssse3_32_79(\&body_40_59); 1040 &Xupdate_ssse3_32_79(\&body_20_39); 1041 &Xuplast_ssse3_80(\&body_20_39); # can jump to "done" 1042 1043 $saved_j=$j; @saved_V=@V; 1044 1045 &Xloop_ssse3(\&body_20_39); 1046 &Xloop_ssse3(\&body_20_39); 1047 &Xloop_ssse3(\&body_20_39); 1048 1049 &mov (@T[1],&DWP(192,"esp")); # update context 1050 &add ($A,&DWP(0,@T[1])); 1051 &add (@T[0],&DWP(4,@T[1])); # $b 1052 &add ($C,&DWP(8,@T[1])); 1053 &mov (&DWP(0,@T[1]),$A); 1054 &add ($D,&DWP(12,@T[1])); 1055 &mov (&DWP(4,@T[1]),@T[0]); 1056 &add ($E,&DWP(16,@T[1])); 1057 &mov (&DWP(8,@T[1]),$C); 1058 &mov ($B,$C); 1059 &mov (&DWP(12,@T[1]),$D); 1060 &xor ($B,$D); 1061 &mov (&DWP(16,@T[1]),$E); 1062 &mov (@T[1],@T[0]); 1063 &pshufd (@X[0],@X[-4&7],0xee); # was &movdqa (@X[0],@X[-3&7]); 1064 &and (@T[0],$B); 1065 &mov ($B,$T[1]); 1066 1067 &jmp (&label("loop")); 1068 1069 &set_label("done",16); $j=$saved_j; @V=@saved_V; 1070 1071 &Xtail_ssse3(\&body_20_39); 1072 &Xtail_ssse3(\&body_20_39); 1073 &Xtail_ssse3(\&body_20_39); 1074 1075 &mov (@T[1],&DWP(192,"esp")); # update context 1076 &add ($A,&DWP(0,@T[1])); 1077 &mov ("esp",&DWP(192+12,"esp")); # restore %esp 1078 &add (@T[0],&DWP(4,@T[1])); # $b 1079 &add ($C,&DWP(8,@T[1])); 1080 &mov (&DWP(0,@T[1]),$A); 1081 &add ($D,&DWP(12,@T[1])); 1082 &mov (&DWP(4,@T[1]),@T[0]); 1083 &add ($E,&DWP(16,@T[1])); 1084 &mov (&DWP(8,@T[1]),$C); 1085 &mov (&DWP(12,@T[1]),$D); 1086 &mov (&DWP(16,@T[1]),$E); 1087 1088 &function_end("_sha1_block_data_order_ssse3"); 1089 1090 $rx=0; # reset 1091 1092 if ($ymm) { 1093 my $Xi=4; # 4xSIMD Xupdate round, start pre-seeded 1094 my @X=map("xmm$_",(4..7,0..3)); # pre-seeded for $Xi=4 1095 my @V=($A,$B,$C,$D,$E); 1096 my $j=0; # hash round 1097 my @T=($T,$tmp1); 1098 my $inp; 1099 1100 my $_rol=sub { &shld(@_[0],@_) }; 1101 my $_ror=sub { &shrd(@_[0],@_) }; 1102 1103 &function_begin("_sha1_block_data_order_avx"); 1104 &call (&label("pic_point")); # make it PIC! 1105 &set_label("pic_point"); 1106 &blindpop($tmp1); 1107 &lea ($tmp1,&DWP(&label("K_XX_XX")."-".&label("pic_point"),$tmp1)); 1108 &set_label("avx_shortcut"); 1109 &vzeroall(); 1110 1111 &vmovdqa(@X[3],&QWP(0,$tmp1)); # K_00_19 1112 &vmovdqa(@X[4],&QWP(16,$tmp1)); # K_20_39 1113 &vmovdqa(@X[5],&QWP(32,$tmp1)); # K_40_59 1114 &vmovdqa(@X[6],&QWP(48,$tmp1)); # K_60_79 1115 &vmovdqa(@X[2],&QWP(64,$tmp1)); # pbswap mask 1116 1117 &mov ($E,&wparam(0)); # load argument block 1118 &mov ($inp=@T[1],&wparam(1)); 1119 &mov ($D,&wparam(2)); 1120 &mov (@T[0],"esp"); 1121 1122 # stack frame layout 1123 # 1124 # +0 X[0]+K X[1]+K X[2]+K X[3]+K # XMM->IALU xfer area 1125 # X[4]+K X[5]+K X[6]+K X[7]+K 1126 # X[8]+K X[9]+K X[10]+K X[11]+K 1127 # X[12]+K X[13]+K X[14]+K X[15]+K 1128 # 1129 # +64 X[0] X[1] X[2] X[3] # XMM->XMM backtrace area 1130 # X[4] X[5] X[6] X[7] 1131 # X[8] X[9] X[10] X[11] # even borrowed for K_00_19 1132 # 1133 # +112 K_20_39 K_20_39 K_20_39 K_20_39 # constants 1134 # K_40_59 K_40_59 K_40_59 K_40_59 1135 # K_60_79 K_60_79 K_60_79 K_60_79 1136 # K_00_19 K_00_19 K_00_19 K_00_19 1137 # pbswap mask 1138 # 1139 # +192 ctx # argument block 1140 # +196 inp 1141 # +200 end 1142 # +204 esp 1143 &sub ("esp",208); 1144 &and ("esp",-64); 1145 1146 &vmovdqa(&QWP(112+0,"esp"),@X[4]); # copy constants 1147 &vmovdqa(&QWP(112+16,"esp"),@X[5]); 1148 &vmovdqa(&QWP(112+32,"esp"),@X[6]); 1149 &shl ($D,6); # len*64 1150 &vmovdqa(&QWP(112+48,"esp"),@X[3]); 1151 &add ($D,$inp); # end of input 1152 &vmovdqa(&QWP(112+64,"esp"),@X[2]); 1153 &add ($inp,64); 1154 &mov (&DWP(192+0,"esp"),$E); # save argument block 1155 &mov (&DWP(192+4,"esp"),$inp); 1156 &mov (&DWP(192+8,"esp"),$D); 1157 &mov (&DWP(192+12,"esp"),@T[0]); # save original %esp 1158 1159 &mov ($A,&DWP(0,$E)); # load context 1160 &mov ($B,&DWP(4,$E)); 1161 &mov ($C,&DWP(8,$E)); 1162 &mov ($D,&DWP(12,$E)); 1163 &mov ($E,&DWP(16,$E)); 1164 &mov (@T[0],$B); # magic seed 1165 1166 &vmovdqu(@X[-4&7],&QWP(-64,$inp)); # load input to %xmm[0-3] 1167 &vmovdqu(@X[-3&7],&QWP(-48,$inp)); 1168 &vmovdqu(@X[-2&7],&QWP(-32,$inp)); 1169 &vmovdqu(@X[-1&7],&QWP(-16,$inp)); 1170 &vpshufb(@X[-4&7],@X[-4&7],@X[2]); # byte swap 1171 &vpshufb(@X[-3&7],@X[-3&7],@X[2]); 1172 &vpshufb(@X[-2&7],@X[-2&7],@X[2]); 1173 &vmovdqa(&QWP(112-16,"esp"),@X[3]); # borrow last backtrace slot 1174 &vpshufb(@X[-1&7],@X[-1&7],@X[2]); 1175 &vpaddd (@X[0],@X[-4&7],@X[3]); # add K_00_19 1176 &vpaddd (@X[1],@X[-3&7],@X[3]); 1177 &vpaddd (@X[2],@X[-2&7],@X[3]); 1178 &vmovdqa(&QWP(0,"esp"),@X[0]); # X[]+K xfer to IALU 1179 &mov (@T[1],$C); 1180 &vmovdqa(&QWP(0+16,"esp"),@X[1]); 1181 &xor (@T[1],$D); 1182 &vmovdqa(&QWP(0+32,"esp"),@X[2]); 1183 &and (@T[0],@T[1]); 1184 &jmp (&label("loop")); 1185 1186 sub Xupdate_avx_16_31() # recall that $Xi starts wtih 4 1187 { use integer; 1188 my $body = shift; 1189 my @insns = (&$body,&$body,&$body,&$body); # 40 instructions 1190 my ($a,$b,$c,$d,$e); 1191 1192 eval(shift(@insns)); 1193 eval(shift(@insns)); 1194 &vpalignr(@X[0],@X[-3&7],@X[-4&7],8); # compose "X[-14]" in "X[0]" 1195 eval(shift(@insns)); 1196 eval(shift(@insns)); 1197 1198 &vpaddd (@X[3],@X[3],@X[-1&7]); 1199 &vmovdqa (&QWP(64+16*(($Xi-4)%3),"esp"),@X[-4&7]);# save X[] to backtrace buffer 1200 eval(shift(@insns)); 1201 eval(shift(@insns)); 1202 &vpsrldq(@X[2],@X[-1&7],4); # "X[-3]", 3 dwords 1203 eval(shift(@insns)); 1204 eval(shift(@insns)); 1205 &vpxor (@X[0],@X[0],@X[-4&7]); # "X[0]"^="X[-16]" 1206 eval(shift(@insns)); 1207 eval(shift(@insns)); 1208 1209 &vpxor (@X[2],@X[2],@X[-2&7]); # "X[-3]"^"X[-8]" 1210 eval(shift(@insns)); 1211 eval(shift(@insns)); 1212 &vmovdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer to IALU 1213 eval(shift(@insns)); 1214 eval(shift(@insns)); 1215 1216 &vpxor (@X[0],@X[0],@X[2]); # "X[0]"^="X[-3]"^"X[-8]" 1217 eval(shift(@insns)); 1218 eval(shift(@insns)); 1219 eval(shift(@insns)); 1220 eval(shift(@insns)); 1221 1222 &vpsrld (@X[2],@X[0],31); 1223 eval(shift(@insns)); 1224 eval(shift(@insns)); 1225 eval(shift(@insns)); 1226 eval(shift(@insns)); 1227 1228 &vpslldq(@X[4],@X[0],12); # "X[0]"<<96, extract one dword 1229 &vpaddd (@X[0],@X[0],@X[0]); 1230 eval(shift(@insns)); 1231 eval(shift(@insns)); 1232 eval(shift(@insns)); 1233 eval(shift(@insns)); 1234 1235 &vpsrld (@X[3],@X[4],30); 1236 &vpor (@X[0],@X[0],@X[2]); # "X[0]"<<<=1 1237 eval(shift(@insns)); 1238 eval(shift(@insns)); 1239 eval(shift(@insns)); 1240 eval(shift(@insns)); 1241 1242 &vpslld (@X[4],@X[4],2); 1243 &vmovdqa (@X[2],&QWP(64+16*(($Xi-6)%3),"esp")) if ($Xi>5); # restore X[] from backtrace buffer 1244 eval(shift(@insns)); 1245 eval(shift(@insns)); 1246 &vpxor (@X[0],@X[0],@X[3]); 1247 eval(shift(@insns)); 1248 eval(shift(@insns)); 1249 eval(shift(@insns)); 1250 eval(shift(@insns)); 1251 1252 &vpxor (@X[0],@X[0],@X[4]); # "X[0]"^=("X[0]"<<96)<<<2 1253 eval(shift(@insns)); 1254 eval(shift(@insns)); 1255 &vmovdqa (@X[4],&QWP(112-16+16*(($Xi)/5),"esp")); # K_XX_XX 1256 eval(shift(@insns)); 1257 eval(shift(@insns)); 1258 1259 foreach (@insns) { eval; } # remaining instructions [if any] 1260 1261 $Xi++; push(@X,shift(@X)); # "rotate" X[] 1262 } 1263 1264 sub Xupdate_avx_32_79() 1265 { use integer; 1266 my $body = shift; 1267 my @insns = (&$body,&$body,&$body,&$body); # 32 to 44 instructions 1268 my ($a,$b,$c,$d,$e); 1269 1270 &vpalignr(@X[2],@X[-1&7],@X[-2&7],8); # compose "X[-6]" 1271 &vpxor (@X[0],@X[0],@X[-4&7]); # "X[0]"="X[-32]"^"X[-16]" 1272 eval(shift(@insns)); # body_20_39 1273 eval(shift(@insns)); 1274 eval(shift(@insns)); 1275 eval(shift(@insns)); # rol 1276 1277 &vpxor (@X[0],@X[0],@X[-7&7]); # "X[0]"^="X[-28]" 1278 &vmovdqa (&QWP(64+16*(($Xi-4)%3),"esp"),@X[-4&7]); # save X[] to backtrace buffer 1279 eval(shift(@insns)); 1280 eval(shift(@insns)); 1281 if ($Xi%5) { 1282 &vmovdqa (@X[4],@X[3]); # "perpetuate" K_XX_XX... 1283 } else { # ... or load next one 1284 &vmovdqa (@X[4],&QWP(112-16+16*($Xi/5),"esp")); 1285 } 1286 &vpaddd (@X[3],@X[3],@X[-1&7]); 1287 eval(shift(@insns)); # ror 1288 eval(shift(@insns)); 1289 1290 &vpxor (@X[0],@X[0],@X[2]); # "X[0]"^="X[-6]" 1291 eval(shift(@insns)); # body_20_39 1292 eval(shift(@insns)); 1293 eval(shift(@insns)); 1294 eval(shift(@insns)); # rol 1295 1296 &vpsrld (@X[2],@X[0],30); 1297 &vmovdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer to IALU 1298 eval(shift(@insns)); 1299 eval(shift(@insns)); 1300 eval(shift(@insns)); # ror 1301 eval(shift(@insns)); 1302 1303 &vpslld (@X[0],@X[0],2); 1304 eval(shift(@insns)); # body_20_39 1305 eval(shift(@insns)); 1306 eval(shift(@insns)); 1307 eval(shift(@insns)); # rol 1308 eval(shift(@insns)); 1309 eval(shift(@insns)); 1310 eval(shift(@insns)); # ror 1311 eval(shift(@insns)); 1312 1313 &vpor (@X[0],@X[0],@X[2]); # "X[0]"<<<=2 1314 eval(shift(@insns)); # body_20_39 1315 eval(shift(@insns)); 1316 &vmovdqa (@X[2],&QWP(64+16*(($Xi-6)%3),"esp")) if($Xi<19); # restore X[] from backtrace buffer 1317 eval(shift(@insns)); 1318 eval(shift(@insns)); # rol 1319 eval(shift(@insns)); 1320 eval(shift(@insns)); 1321 eval(shift(@insns)); # ror 1322 eval(shift(@insns)); 1323 1324 foreach (@insns) { eval; } # remaining instructions 1325 1326 $Xi++; push(@X,shift(@X)); # "rotate" X[] 1327 } 1328 1329 sub Xuplast_avx_80() 1330 { use integer; 1331 my $body = shift; 1332 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions 1333 my ($a,$b,$c,$d,$e); 1334 1335 eval(shift(@insns)); 1336 &vpaddd (@X[3],@X[3],@X[-1&7]); 1337 eval(shift(@insns)); 1338 eval(shift(@insns)); 1339 eval(shift(@insns)); 1340 eval(shift(@insns)); 1341 1342 &vmovdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer IALU 1343 1344 foreach (@insns) { eval; } # remaining instructions 1345 1346 &mov ($inp=@T[1],&DWP(192+4,"esp")); 1347 &cmp ($inp,&DWP(192+8,"esp")); 1348 &je (&label("done")); 1349 1350 &vmovdqa(@X[3],&QWP(112+48,"esp")); # K_00_19 1351 &vmovdqa(@X[2],&QWP(112+64,"esp")); # pbswap mask 1352 &vmovdqu(@X[-4&7],&QWP(0,$inp)); # load input 1353 &vmovdqu(@X[-3&7],&QWP(16,$inp)); 1354 &vmovdqu(@X[-2&7],&QWP(32,$inp)); 1355 &vmovdqu(@X[-1&7],&QWP(48,$inp)); 1356 &add ($inp,64); 1357 &vpshufb(@X[-4&7],@X[-4&7],@X[2]); # byte swap 1358 &mov (&DWP(192+4,"esp"),$inp); 1359 &vmovdqa(&QWP(112-16,"esp"),@X[3]); # borrow last backtrace slot 1360 1361 $Xi=0; 1362 } 1363 1364 sub Xloop_avx() 1365 { use integer; 1366 my $body = shift; 1367 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions 1368 my ($a,$b,$c,$d,$e); 1369 1370 eval(shift(@insns)); 1371 eval(shift(@insns)); 1372 &vpshufb (@X[($Xi-3)&7],@X[($Xi-3)&7],@X[2]); 1373 eval(shift(@insns)); 1374 eval(shift(@insns)); 1375 &vpaddd (@X[$Xi&7],@X[($Xi-4)&7],@X[3]); 1376 eval(shift(@insns)); 1377 eval(shift(@insns)); 1378 eval(shift(@insns)); 1379 eval(shift(@insns)); 1380 &vmovdqa (&QWP(0+16*$Xi,"esp"),@X[$Xi&7]); # X[]+K xfer to IALU 1381 eval(shift(@insns)); 1382 eval(shift(@insns)); 1383 1384 foreach (@insns) { eval; } 1385 $Xi++; 1386 } 1387 1388 sub Xtail_avx() 1389 { use integer; 1390 my $body = shift; 1391 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions 1392 my ($a,$b,$c,$d,$e); 1393 1394 foreach (@insns) { eval; } 1395 } 1396 1397 &set_label("loop",16); 1398 &Xupdate_avx_16_31(\&body_00_19); 1399 &Xupdate_avx_16_31(\&body_00_19); 1400 &Xupdate_avx_16_31(\&body_00_19); 1401 &Xupdate_avx_16_31(\&body_00_19); 1402 &Xupdate_avx_32_79(\&body_00_19); 1403 &Xupdate_avx_32_79(\&body_20_39); 1404 &Xupdate_avx_32_79(\&body_20_39); 1405 &Xupdate_avx_32_79(\&body_20_39); 1406 &Xupdate_avx_32_79(\&body_20_39); 1407 &Xupdate_avx_32_79(\&body_20_39); 1408 &Xupdate_avx_32_79(\&body_40_59); 1409 &Xupdate_avx_32_79(\&body_40_59); 1410 &Xupdate_avx_32_79(\&body_40_59); 1411 &Xupdate_avx_32_79(\&body_40_59); 1412 &Xupdate_avx_32_79(\&body_40_59); 1413 &Xupdate_avx_32_79(\&body_20_39); 1414 &Xuplast_avx_80(\&body_20_39); # can jump to "done" 1415 1416 $saved_j=$j; @saved_V=@V; 1417 1418 &Xloop_avx(\&body_20_39); 1419 &Xloop_avx(\&body_20_39); 1420 &Xloop_avx(\&body_20_39); 1421 1422 &mov (@T[1],&DWP(192,"esp")); # update context 1423 &add ($A,&DWP(0,@T[1])); 1424 &add (@T[0],&DWP(4,@T[1])); # $b 1425 &add ($C,&DWP(8,@T[1])); 1426 &mov (&DWP(0,@T[1]),$A); 1427 &add ($D,&DWP(12,@T[1])); 1428 &mov (&DWP(4,@T[1]),@T[0]); 1429 &add ($E,&DWP(16,@T[1])); 1430 &mov ($B,$C); 1431 &mov (&DWP(8,@T[1]),$C); 1432 &xor ($B,$D); 1433 &mov (&DWP(12,@T[1]),$D); 1434 &mov (&DWP(16,@T[1]),$E); 1435 &mov (@T[1],@T[0]); 1436 &and (@T[0],$B); 1437 &mov ($B,@T[1]); 1438 1439 &jmp (&label("loop")); 1440 1441 &set_label("done",16); $j=$saved_j; @V=@saved_V; 1442 1443 &Xtail_avx(\&body_20_39); 1444 &Xtail_avx(\&body_20_39); 1445 &Xtail_avx(\&body_20_39); 1446 1447 &vzeroall(); 1448 1449 &mov (@T[1],&DWP(192,"esp")); # update context 1450 &add ($A,&DWP(0,@T[1])); 1451 &mov ("esp",&DWP(192+12,"esp")); # restore %esp 1452 &add (@T[0],&DWP(4,@T[1])); # $b 1453 &add ($C,&DWP(8,@T[1])); 1454 &mov (&DWP(0,@T[1]),$A); 1455 &add ($D,&DWP(12,@T[1])); 1456 &mov (&DWP(4,@T[1]),@T[0]); 1457 &add ($E,&DWP(16,@T[1])); 1458 &mov (&DWP(8,@T[1]),$C); 1459 &mov (&DWP(12,@T[1]),$D); 1460 &mov (&DWP(16,@T[1]),$E); 1461 &function_end("_sha1_block_data_order_avx"); 1462 } 1463 &set_label("K_XX_XX",64); 1464 &data_word(0x5a827999,0x5a827999,0x5a827999,0x5a827999); # K_00_19 1465 &data_word(0x6ed9eba1,0x6ed9eba1,0x6ed9eba1,0x6ed9eba1); # K_20_39 1466 &data_word(0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc); # K_40_59 1467 &data_word(0xca62c1d6,0xca62c1d6,0xca62c1d6,0xca62c1d6); # K_60_79 1468 &data_word(0x00010203,0x04050607,0x08090a0b,0x0c0d0e0f); # pbswap mask 1469 &data_byte(0xf,0xe,0xd,0xc,0xb,0xa,0x9,0x8,0x7,0x6,0x5,0x4,0x3,0x2,0x1,0x0); 1470 } 1471 &asciz("SHA1 block transform for x86, CRYPTOGAMS by <appro\@openssl.org>"); 1472 1473 &asm_finish(); 1474
