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git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/poly1305/asm/poly1305-x86.pl
2 # Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
4 # Licensed under the OpenSSL license (the "License"). You may not use
5 # this file except in compliance with the License. You can obtain a copy
6 # in the file LICENSE in the source distribution or at
7 # https://www.openssl.org/source/license.html
10 # ====================================================================
11 # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
12 # project. The module is, however, dual licensed under OpenSSL and
13 # CRYPTOGAMS licenses depending on where you obtain it. For further
14 # details see http://www.openssl.org/~appro/cryptogams/.
15 # ====================================================================
17 # This module implements Poly1305 hash for x86.
21 # Numbers are cycles per processed byte with poly1305_blocks alone,
22 # measured with rdtsc at fixed clock frequency.
24 # IALU/gcc-3.4(*) SSE2(**) AVX2
28 # Core 2 4.85/+90% 1.80
29 # Westmere 4.58/+100% 1.43
30 # Sandy Bridge 3.90/+100% 1.36
31 # Haswell 3.88/+70% 1.18 0.72
32 # Skylake 3.10/+60% 1.14 0.62
33 # Silvermont 11.0/+40% 4.80
34 # Goldmont 4.10/+200% 2.10
35 # VIA Nano 6.71/+90% 2.47
36 # Sledgehammer 3.51/+180% 4.27
37 # Bulldozer 4.53/+140% 1.31
39 # (*) gcc 4.8 for some reason generated worse code;
40 # (**) besides SSE2 there are floating-point and AVX options; FP
41 # is deemed unnecessary, because pre-SSE2 processor are too
42 # old to care about, while it's not the fastest option on
43 # SSE2-capable ones; AVX is omitted, because it doesn't give
44 # a lot of improvement, 5-10% depending on processor;
46 $0 =~ m/(.*[\/\\])[^\
/\\]+$/; $dir=$1;
47 push(@INC,"${dir}","${dir}../../perlasm");
51 open STDOUT
,">$output";
53 &asm_init
($ARGV[0],$ARGV[$#ARGV] eq "386");
56 for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
59 &static_label
("const_sse2");
60 &static_label
("enter_blocks");
61 &static_label
("enter_emit");
62 &external_label
("OPENSSL_ia32cap_P");
64 if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
65 =~ /GNU assembler version ([2-9]\.[0-9]+)/) {
66 $avx = ($1>=2.19) + ($1>=2.22);
69 if (!$avx && $ARGV[0] eq "win32n" &&
70 `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/) {
71 $avx = ($1>=2.09) + ($1>=2.10);
74 if (!$avx && `$ENV{CC} -v 2>&1` =~ /((?:^clang|LLVM) version|based on LLVM) ([3-9]\.[0-9]+)/) {
75 $avx = ($2>=3.0) + ($2>3.0);
79 ########################################################################
80 # Layout of opaque area is following.
82 # unsigned __int32 h[5]; # current hash value base 2^32
83 # unsigned __int32 pad; # is_base2_26 in vector context
84 # unsigned __int32 r[4]; # key value base 2^32
87 &function_begin
("poly1305_init");
88 &mov
("edi",&wparam
(0)); # context
89 &mov
("esi",&wparam
(1)); # key
90 &mov
("ebp",&wparam
(2)); # function table
93 &mov
(&DWP
(4*0,"edi"),"eax"); # zero hash value
94 &mov
(&DWP
(4*1,"edi"),"eax");
95 &mov
(&DWP
(4*2,"edi"),"eax");
96 &mov
(&DWP
(4*3,"edi"),"eax");
97 &mov
(&DWP
(4*4,"edi"),"eax");
98 &mov
(&DWP
(4*5,"edi"),"eax"); # is_base2_26
101 &je
(&label
("nokey"));
104 &call
(&label
("pic_point"));
105 &set_label
("pic_point");
108 &lea
("eax",&DWP
("poly1305_blocks-".&label
("pic_point"),"ebx"));
109 &lea
("edx",&DWP
("poly1305_emit-".&label
("pic_point"),"ebx"));
111 &picmeup
("edi","OPENSSL_ia32cap_P","ebx",&label
("pic_point"));
112 &mov
("ecx",&DWP
(0,"edi"));
113 &and ("ecx",1<<26|1<<24);
114 &cmp ("ecx",1<<26|1<<24); # SSE2 and XMM?
115 &jne
(&label
("no_sse2"));
117 &lea
("eax",&DWP
("_poly1305_blocks_sse2-".&label
("pic_point"),"ebx"));
118 &lea
("edx",&DWP
("_poly1305_emit_sse2-".&label
("pic_point"),"ebx"));
121 &mov
("ecx",&DWP
(8,"edi"));
122 &test
("ecx",1<<5); # AVX2?
123 &jz
(&label
("no_sse2"));
125 &lea
("eax",&DWP
("_poly1305_blocks_avx2-".&label
("pic_point"),"ebx"));
127 &set_label
("no_sse2");
128 &mov
("edi",&wparam
(0)); # reload context
129 &mov
(&DWP
(0,"ebp"),"eax"); # fill function table
130 &mov
(&DWP
(4,"ebp"),"edx");
133 &mov
("eax",&DWP
(4*0,"esi")); # load input key
134 &mov
("ebx",&DWP
(4*1,"esi"));
135 &mov
("ecx",&DWP
(4*2,"esi"));
136 &mov
("edx",&DWP
(4*3,"esi"));
137 &and ("eax",0x0fffffff);
138 &and ("ebx",0x0ffffffc);
139 &and ("ecx",0x0ffffffc);
140 &and ("edx",0x0ffffffc);
141 &mov
(&DWP
(4*6,"edi"),"eax");
142 &mov
(&DWP
(4*7,"edi"),"ebx");
143 &mov
(&DWP
(4*8,"edi"),"ecx");
144 &mov
(&DWP
(4*9,"edi"),"edx");
148 &function_end
("poly1305_init");
150 ($h0,$h1,$h2,$h3,$h4,
153 $s1,$s2,$s3)=map(4*$_,(0..15));
155 &function_begin
("poly1305_blocks");
156 &mov
("edi",&wparam
(0)); # ctx
157 &mov
("esi",&wparam
(1)); # inp
158 &mov
("ecx",&wparam
(2)); # len
159 &set_label
("enter_blocks");
161 &jz
(&label
("nodata"));
164 &mov
("eax",&DWP
(4*6,"edi")); # r0
165 &mov
("ebx",&DWP
(4*7,"edi")); # r1
166 &lea
("ebp",&DWP
(0,"esi","ecx")); # end of input
167 &mov
("ecx",&DWP
(4*8,"edi")); # r2
168 &mov
("edx",&DWP
(4*9,"edi")); # r3
170 &mov
(&wparam
(2),"ebp");
173 &mov
(&DWP
($r0,"esp"),"eax"); # r0
176 &mov
(&DWP
($r1,"esp"),"ebx"); # r1
177 &add
("eax","ebx"); # s1
180 &mov
(&DWP
($r2,"esp"),"ecx"); # r2
181 &add
("ebx","ecx"); # s2
184 &mov
(&DWP
($r3,"esp"),"edx"); # r3
185 &add
("ecx","edx"); # s3
186 &mov
(&DWP
($s1,"esp"),"eax"); # s1
187 &mov
(&DWP
($s2,"esp"),"ebx"); # s2
188 &mov
(&DWP
($s3,"esp"),"ecx"); # s3
190 &mov
("eax",&DWP
(4*0,"edi")); # load hash value
191 &mov
("ebx",&DWP
(4*1,"edi"));
192 &mov
("ecx",&DWP
(4*2,"edi"));
193 &mov
("esi",&DWP
(4*3,"edi"));
194 &mov
("edi",&DWP
(4*4,"edi"));
195 &jmp
(&label
("loop"));
197 &set_label
("loop",32);
198 &add
("eax",&DWP
(4*0,"ebp")); # accumulate input
199 &adc
("ebx",&DWP
(4*1,"ebp"));
200 &adc
("ecx",&DWP
(4*2,"ebp"));
201 &adc
("esi",&DWP
(4*3,"ebp"));
202 &lea
("ebp",&DWP
(4*4,"ebp"));
203 &adc
("edi",&wparam
(3)); # padbit
205 &mov
(&DWP
($h0,"esp"),"eax"); # put aside hash[+inp]
206 &mov
(&DWP
($h3,"esp"),"esi");
208 &mul
(&DWP
($r0,"esp")); # h0*r0
209 &mov
(&DWP
($h4,"esp"),"edi");
211 &mov
("eax","ebx"); # h1
213 &mul
(&DWP
($s3,"esp")); # h1*s3
215 &mov
("eax","ecx"); # h2
217 &mul
(&DWP
($s2,"esp")); # h2*s2
219 &mov
("eax",&DWP
($h3,"esp"));
221 &mul
(&DWP
($s1,"esp")); # h3*s1
223 &mov
("eax",&DWP
($h0,"esp"));
226 &mul
(&DWP
($r1,"esp")); # h0*r1
227 &mov
(&DWP
($d0,"esp"),"edi");
230 &mov
("eax","ebx"); # h1
232 &mul
(&DWP
($r0,"esp")); # h1*r0
234 &mov
("eax","ecx"); # h2
236 &mul
(&DWP
($s3,"esp")); # h2*s3
238 &mov
("eax",&DWP
($h3,"esp"));
240 &mul
(&DWP
($s2,"esp")); # h3*s2
242 &mov
("eax",&DWP
($h4,"esp"));
244 &imul
("eax",&DWP
($s1,"esp")); # h4*s1
246 &mov
("eax",&DWP
($h0,"esp"));
249 &mul
(&DWP
($r2,"esp")); # h0*r2
250 &mov
(&DWP
($d1,"esp"),"esi");
253 &mov
("eax","ebx"); # h1
255 &mul
(&DWP
($r1,"esp")); # h1*r1
257 &mov
("eax","ecx"); # h2
259 &mul
(&DWP
($r0,"esp")); # h2*r0
261 &mov
("eax",&DWP
($h3,"esp"));
263 &mul
(&DWP
($s3,"esp")); # h3*s3
265 &mov
("eax",&DWP
($h4,"esp"));
267 &imul
("eax",&DWP
($s2,"esp")); # h4*s2
269 &mov
("eax",&DWP
($h0,"esp"));
272 &mul
(&DWP
($r3,"esp")); # h0*r3
273 &mov
(&DWP
($d2,"esp"),"edi");
276 &mov
("eax","ebx"); # h1
278 &mul
(&DWP
($r2,"esp")); # h1*r2
280 &mov
("eax","ecx"); # h2
282 &mul
(&DWP
($r1,"esp")); # h2*r1
284 &mov
("eax",&DWP
($h3,"esp"));
286 &mul
(&DWP
($r0,"esp")); # h3*r0
288 &mov
("ecx",&DWP
($h4,"esp"));
292 &imul
("ecx",&DWP
($s3,"esp")); # h4*s3
294 &mov
("eax",&DWP
($d0,"esp"));
297 &imul
("edx",&DWP
($r0,"esp")); # h4*r0
300 &mov
("ebx",&DWP
($d1,"esp"));
301 &mov
("ecx",&DWP
($d2,"esp"));
303 &mov
("edi","edx"); # last reduction step
306 &lea
("edx",&DWP
(0,"edx","edx",4)); # *5
313 &cmp ("ebp",&wparam
(2)); # done yet?
314 &jne
(&label
("loop"));
316 &mov
("edx",&wparam
(0)); # ctx
318 &mov
(&DWP
(4*0,"edx"),"eax"); # store hash value
319 &mov
(&DWP
(4*1,"edx"),"ebx");
320 &mov
(&DWP
(4*2,"edx"),"ecx");
321 &mov
(&DWP
(4*3,"edx"),"esi");
322 &mov
(&DWP
(4*4,"edx"),"edi");
323 &set_label
("nodata");
324 &function_end
("poly1305_blocks");
326 &function_begin
("poly1305_emit");
327 &mov
("ebp",&wparam
(0)); # context
328 &set_label
("enter_emit");
329 &mov
("edi",&wparam
(1)); # output
330 &mov
("eax",&DWP
(4*0,"ebp")); # load hash value
331 &mov
("ebx",&DWP
(4*1,"ebp"));
332 &mov
("ecx",&DWP
(4*2,"ebp"));
333 &mov
("edx",&DWP
(4*3,"ebp"));
334 &mov
("esi",&DWP
(4*4,"ebp"));
336 &add
("eax",5); # compare to modulus
341 &shr
("esi",2); # did it carry/borrow?
342 &neg
("esi"); # do we choose hash-modulus?
348 &mov
(&DWP
(4*0,"edi"),"eax");
349 &mov
(&DWP
(4*1,"edi"),"ebx");
350 &mov
(&DWP
(4*2,"edi"),"ecx");
351 &mov
(&DWP
(4*3,"edi"),"edx");
353 ¬ ("esi"); # or original hash value?
354 &mov
("eax",&DWP
(4*0,"ebp"));
355 &mov
("ebx",&DWP
(4*1,"ebp"));
356 &mov
("ecx",&DWP
(4*2,"ebp"));
357 &mov
("edx",&DWP
(4*3,"ebp"));
358 &mov
("ebp",&wparam
(2));
363 &or ("eax",&DWP
(4*0,"edi"));
364 &or ("ebx",&DWP
(4*1,"edi"));
365 &or ("ecx",&DWP
(4*2,"edi"));
366 &or ("edx",&DWP
(4*3,"edi"));
368 &add
("eax",&DWP
(4*0,"ebp")); # accumulate key
369 &adc
("ebx",&DWP
(4*1,"ebp"));
370 &adc
("ecx",&DWP
(4*2,"ebp"));
371 &adc
("edx",&DWP
(4*3,"ebp"));
373 &mov
(&DWP
(4*0,"edi"),"eax");
374 &mov
(&DWP
(4*1,"edi"),"ebx");
375 &mov
(&DWP
(4*2,"edi"),"ecx");
376 &mov
(&DWP
(4*3,"edi"),"edx");
377 &function_end
("poly1305_emit");
380 ########################################################################
381 # Layout of opaque area is following.
383 # unsigned __int32 h[5]; # current hash value base 2^26
384 # unsigned __int32 is_base2_26;
385 # unsigned __int32 r[4]; # key value base 2^32
386 # unsigned __int32 pad[2];
387 # struct { unsigned __int32 r^4, r^3, r^2, r^1; } r[9];
389 # where r^n are base 2^26 digits of degrees of multiplier key. There are
390 # 5 digits, but last four are interleaved with multiples of 5, totalling
391 # in 9 elements: r0, r1, 5*r1, r2, 5*r2, r3, 5*r3, r4, 5*r4.
393 my ($D0,$D1,$D2,$D3,$D4,$T0,$T1,$T2)=map("xmm$_",(0..7));
394 my $MASK=$T2; # borrow and keep in mind
397 &function_begin_B
("_poly1305_init_sse2");
398 &movdqu
($D4,&QWP
(4*6,"edi")); # key base 2^32
399 &lea
("edi",&DWP
(16*3,"edi")); # size optimization
401 &sub ("esp",16*(9+5));
404 #&pand ($D4,&QWP(96,"ebx")); # magic mask
405 &movq
($MASK,&QWP
(64,"ebx"));
411 &pand
($D0,$MASK); # -> base 2^26
422 &lea
("edx",&DWP
(16*9,"esp")); # size optimization
424 &set_label
("square");
425 &movdqa
(&QWP
(16*0,"esp"),$D0);
426 &movdqa
(&QWP
(16*1,"esp"),$D1);
427 &movdqa
(&QWP
(16*2,"esp"),$D2);
428 &movdqa
(&QWP
(16*3,"esp"),$D3);
429 &movdqa
(&QWP
(16*4,"esp"),$D4);
435 &paddd
($T1,$D1); # *5
436 &paddd
($T0,$D2); # *5
437 &movdqa
(&QWP
(16*5,"esp"),$T1);
438 &movdqa
(&QWP
(16*6,"esp"),$T0);
443 &paddd
($T1,$D3); # *5
444 &paddd
($T0,$D4); # *5
445 &movdqa
(&QWP
(16*7,"esp"),$T1);
446 &movdqa
(&QWP
(16*8,"esp"),$T0);
448 &pshufd
($T1,$D0,0b01000100
);
450 &pshufd
($D1,$D1,0b01000100
);
451 &pshufd
($D2,$D2,0b01000100
);
452 &pshufd
($D3,$D3,0b01000100
);
453 &pshufd
($D4,$D4,0b01000100
);
454 &movdqa
(&QWP
(16*0,"edx"),$T1);
455 &movdqa
(&QWP
(16*1,"edx"),$D1);
456 &movdqa
(&QWP
(16*2,"edx"),$D2);
457 &movdqa
(&QWP
(16*3,"edx"),$D3);
458 &movdqa
(&QWP
(16*4,"edx"),$D4);
460 ################################################################
461 # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
462 # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
463 # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
464 # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
465 # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
467 &pmuludq
($D4,$D0); # h4*r0
468 &pmuludq
($D3,$D0); # h3*r0
469 &pmuludq
($D2,$D0); # h2*r0
470 &pmuludq
($D1,$D0); # h1*r0
471 &pmuludq
($D0,$T1); # h0*r0
475 my $base = shift; $base = "esp" if (!defined($base));
477 ################################################################
478 # As for choice to "rotate" $T0-$T2 in order to move paddq
479 # past next multiplication. While it makes code harder to read
480 # and doesn't have significant effect on most processors, it
481 # makes a lot of difference on Atom, up to 30% improvement.
484 &pmuludq
($T0,&QWP
(16*3,$base)); # r1*h3
486 &pmuludq
($T1,&QWP
(16*2,$base)); # r1*h2
489 &pmuludq
($T2,&QWP
(16*1,$base)); # r1*h1
492 &pmuludq
($T0,&QWP
(16*0,$base)); # r1*h0
494 &pmuludq
($T1,&QWP
(16*4,$base)); # s1*h4
495 &$load ($T2,2); # r2^n
499 &pmuludq
($T2,&QWP
(16*2,$base)); # r2*h2
502 &pmuludq
($T0,&QWP
(16*1,$base)); # r2*h1
504 &$load ($T2,6); # s2^n
505 &pmuludq
($T1,&QWP
(16*0,$base)); # r2*h0
508 &pmuludq
($T2,&QWP
(16*4,$base)); # s2*h4
510 &pmuludq
($T0,&QWP
(16*3,$base)); # s2*h3
511 &$load ($T1,3); # r3^n
515 &pmuludq
($T1,&QWP
(16*1,$base)); # r3*h1
517 &$load ($T0,7); # s3^n
518 &pmuludq
($T2,&QWP
(16*0,$base)); # r3*h0
521 &pmuludq
($T0,&QWP
(16*4,$base)); # s3*h4
524 &pmuludq
($T1,&QWP
(16*3,$base)); # s3*h3
526 &pmuludq
($T2,&QWP
(16*2,$base)); # s3*h2
527 &$load ($T0,4); # r4^n
530 &$load ($T1,8); # s4^n
531 &pmuludq
($T0,&QWP
(16*0,$base)); # r4*h0
534 &pmuludq
($T1,&QWP
(16*4,$base)); # s4*h4
537 &pmuludq
($T2,&QWP
(16*1,$base)); # s4*h1
540 &pmuludq
($T0,&QWP
(16*2,$base)); # s4*h2
542 &pmuludq
($T1,&QWP
(16*3,$base)); # s4*h3
543 &movdqa
($MASK,&QWP
(64,"ebx"));
547 &pmuladd
(sub { my ($reg,$i)=@_;
548 &movdqa
($reg,&QWP
(16*$i,"esp"));
554 ################################################################
555 # lazy reduction as discussed in "NEON crypto" by D.J. Bernstein
558 # [(*) see discussion in poly1305-armv4 module]
563 &$extra () if (defined($extra));
564 &paddq
($T0,$D4); # h3 -> h4
569 &paddq
($T1,$D1); # h0 -> h1
574 &paddd
($D0,$T0); # favour paddd when
579 &paddq
($T1,$D2); # h1 -> h2
580 &paddq
($T0,$D0); # h4 -> h0 (*)
585 &paddd
($T1,$D3); # h2 -> h3
591 &paddd
($D1,$T0); # h0 -> h1
593 &paddd
($D4,$T1); # h3 -> h4
598 &jz
(&label
("square_break"));
600 &punpcklqdq
($D0,&QWP
(16*0,"esp")); # 0:r^1:0:r^2
601 &punpcklqdq
($D1,&QWP
(16*1,"esp"));
602 &punpcklqdq
($D2,&QWP
(16*2,"esp"));
603 &punpcklqdq
($D3,&QWP
(16*3,"esp"));
604 &punpcklqdq
($D4,&QWP
(16*4,"esp"));
605 &jmp
(&label
("square"));
607 &set_label
("square_break");
608 &psllq
($D0,32); # -> r^3:0:r^4:0
613 &por
($D0,&QWP
(16*0,"esp")); # r^3:r^1:r^4:r^2
614 &por
($D1,&QWP
(16*1,"esp"));
615 &por
($D2,&QWP
(16*2,"esp"));
616 &por
($D3,&QWP
(16*3,"esp"));
617 &por
($D4,&QWP
(16*4,"esp"));
619 &pshufd
($D0,$D0,0b10001101
); # -> r^1:r^2:r^3:r^4
620 &pshufd
($D1,$D1,0b10001101
);
621 &pshufd
($D2,$D2,0b10001101
);
622 &pshufd
($D3,$D3,0b10001101
);
623 &pshufd
($D4,$D4,0b10001101
);
625 &movdqu
(&QWP
(16*0,"edi"),$D0); # save the table
626 &movdqu
(&QWP
(16*1,"edi"),$D1);
627 &movdqu
(&QWP
(16*2,"edi"),$D2);
628 &movdqu
(&QWP
(16*3,"edi"),$D3);
629 &movdqu
(&QWP
(16*4,"edi"),$D4);
635 &paddd
($T1,$D1); # *5
636 &paddd
($T0,$D2); # *5
637 &movdqu
(&QWP
(16*5,"edi"),$T1);
638 &movdqu
(&QWP
(16*6,"edi"),$T0);
643 &paddd
($T1,$D3); # *5
644 &paddd
($T0,$D4); # *5
645 &movdqu
(&QWP
(16*7,"edi"),$T1);
646 &movdqu
(&QWP
(16*8,"edi"),$T0);
649 &lea
("edi",&DWP
(-16*3,"edi")); # size de-optimization
651 &function_end_B
("_poly1305_init_sse2");
654 &function_begin
("_poly1305_blocks_sse2");
655 &mov
("edi",&wparam
(0)); # ctx
656 &mov
("esi",&wparam
(1)); # inp
657 &mov
("ecx",&wparam
(2)); # len
659 &mov
("eax",&DWP
(4*5,"edi")); # is_base2_26
661 &jz
(&label
("nodata"));
663 &jae
(&label
("enter_sse2"));
664 &test
("eax","eax"); # is_base2_26?
665 &jz
(&label
("enter_blocks"));
667 &set_label
("enter_sse2",16);
668 &call
(&label
("pic_point"));
669 &set_label
("pic_point");
671 &lea
("ebx",&DWP
(&label
("const_sse2")."-".&label
("pic_point"),"ebx"));
673 &test
("eax","eax"); # is_base2_26?
674 &jnz
(&label
("base2_26"));
676 &call
("_poly1305_init_sse2");
678 ################################################# base 2^32 -> base 2^26
679 &mov
("eax",&DWP
(0,"edi"));
680 &mov
("ecx",&DWP
(3,"edi"));
681 &mov
("edx",&DWP
(6,"edi"));
682 &mov
("esi",&DWP
(9,"edi"));
683 &mov
("ebp",&DWP
(13,"edi"));
684 &mov
(&DWP
(4*5,"edi"),1); # is_base2_26
687 &and ("eax",0x3ffffff);
689 &and ("ecx",0x3ffffff);
691 &and ("edx",0x3ffffff);
699 &mov
("esi",&wparam
(1)); # [reload] inp
700 &mov
("ecx",&wparam
(2)); # [reload] len
701 &jmp
(&label
("base2_32"));
703 &set_label
("base2_26",16);
704 &movd
($D0,&DWP
(4*0,"edi")); # load hash value
705 &movd
($D1,&DWP
(4*1,"edi"));
706 &movd
($D2,&DWP
(4*2,"edi"));
707 &movd
($D3,&DWP
(4*3,"edi"));
708 &movd
($D4,&DWP
(4*4,"edi"));
709 &movdqa
($MASK,&QWP
(64,"ebx"));
711 &set_label
("base2_32");
712 &mov
("eax",&wparam
(3)); # padbit
715 &sub ("esp",16*(5+5+5+9+9));
718 &lea
("edi",&DWP
(16*3,"edi")); # size optimization
719 &shl
("eax",24); # padbit
722 &jz
(&label
("even"));
724 ################################################################
725 # process single block, with SSE2, because it's still faster
726 # even though half of result is discarded
728 &movdqu
($T1,&QWP
(0,"esi")); # input
729 &lea
("esi",&DWP
(16,"esi"));
731 &movdqa
($T0,$T1); # -> base 2^26 ...
733 &paddd
($D0,$T1); # ... and accumulate
752 &movd
($T0,"eax"); # padbit
754 &movd
($T1,&DWP
(16*0+12,"edi")); # r0
757 &movdqa
(&QWP
(16*0,"esp"),$D0);
758 &movdqa
(&QWP
(16*1,"esp"),$D1);
759 &movdqa
(&QWP
(16*2,"esp"),$D2);
760 &movdqa
(&QWP
(16*3,"esp"),$D3);
761 &movdqa
(&QWP
(16*4,"esp"),$D4);
763 ################################################################
764 # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
765 # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
766 # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
767 # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
768 # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
770 &pmuludq
($D0,$T1); # h4*r0
771 &pmuludq
($D1,$T1); # h3*r0
772 &pmuludq
($D2,$T1); # h2*r0
773 &movd
($T0,&DWP
(16*1+12,"edi")); # r1
774 &pmuludq
($D3,$T1); # h1*r0
775 &pmuludq
($D4,$T1); # h0*r0
777 &pmuladd
(sub { my ($reg,$i)=@_;
778 &movd
($reg,&DWP
(16*$i+12,"edi"));
784 &jz
(&label
("done"));
787 &lea
("edx",&DWP
(16*(5+5+5+9),"esp"));# size optimization
788 &lea
("eax",&DWP
(-16*2,"esi"));
791 ################################################################
792 # expand and copy pre-calculated table to stack
794 &movdqu
($T0,&QWP
(16*0,"edi")); # r^1:r^2:r^3:r^4
795 &pshufd
($T1,$T0,0b01000100
); # duplicate r^3:r^4
796 &cmovb
("esi","eax");
797 &pshufd
($T0,$T0,0b11101110
); # duplicate r^1:r^2
798 &movdqa
(&QWP
(16*0,"edx"),$T1);
799 &lea
("eax",&DWP
(16*10,"esp"));
800 &movdqu
($T1,&QWP
(16*1,"edi"));
801 &movdqa
(&QWP
(16*(0-9),"edx"),$T0);
802 &pshufd
($T0,$T1,0b01000100
);
803 &pshufd
($T1,$T1,0b11101110
);
804 &movdqa
(&QWP
(16*1,"edx"),$T0);
805 &movdqu
($T0,&QWP
(16*2,"edi"));
806 &movdqa
(&QWP
(16*(1-9),"edx"),$T1);
807 &pshufd
($T1,$T0,0b01000100
);
808 &pshufd
($T0,$T0,0b11101110
);
809 &movdqa
(&QWP
(16*2,"edx"),$T1);
810 &movdqu
($T1,&QWP
(16*3,"edi"));
811 &movdqa
(&QWP
(16*(2-9),"edx"),$T0);
812 &pshufd
($T0,$T1,0b01000100
);
813 &pshufd
($T1,$T1,0b11101110
);
814 &movdqa
(&QWP
(16*3,"edx"),$T0);
815 &movdqu
($T0,&QWP
(16*4,"edi"));
816 &movdqa
(&QWP
(16*(3-9),"edx"),$T1);
817 &pshufd
($T1,$T0,0b01000100
);
818 &pshufd
($T0,$T0,0b11101110
);
819 &movdqa
(&QWP
(16*4,"edx"),$T1);
820 &movdqu
($T1,&QWP
(16*5,"edi"));
821 &movdqa
(&QWP
(16*(4-9),"edx"),$T0);
822 &pshufd
($T0,$T1,0b01000100
);
823 &pshufd
($T1,$T1,0b11101110
);
824 &movdqa
(&QWP
(16*5,"edx"),$T0);
825 &movdqu
($T0,&QWP
(16*6,"edi"));
826 &movdqa
(&QWP
(16*(5-9),"edx"),$T1);
827 &pshufd
($T1,$T0,0b01000100
);
828 &pshufd
($T0,$T0,0b11101110
);
829 &movdqa
(&QWP
(16*6,"edx"),$T1);
830 &movdqu
($T1,&QWP
(16*7,"edi"));
831 &movdqa
(&QWP
(16*(6-9),"edx"),$T0);
832 &pshufd
($T0,$T1,0b01000100
);
833 &pshufd
($T1,$T1,0b11101110
);
834 &movdqa
(&QWP
(16*7,"edx"),$T0);
835 &movdqu
($T0,&QWP
(16*8,"edi"));
836 &movdqa
(&QWP
(16*(7-9),"edx"),$T1);
837 &pshufd
($T1,$T0,0b01000100
);
838 &pshufd
($T0,$T0,0b11101110
);
839 &movdqa
(&QWP
(16*8,"edx"),$T1);
840 &movdqa
(&QWP
(16*(8-9),"edx"),$T0);
843 my ($inpbase,$offbase)=@_;
845 &movdqu
($T0,&QWP
($inpbase+0,"esi")); # load input
846 &movdqu
($T1,&QWP
($inpbase+16,"esi"));
847 &lea
("esi",&DWP
(16*2,"esi"));
849 &movdqa
(&QWP
($offbase+16*2,"esp"),$D2);
850 &movdqa
(&QWP
($offbase+16*3,"esp"),$D3);
851 &movdqa
(&QWP
($offbase+16*4,"esp"),$D4);
853 &movdqa
($D2,$T0); # splat input
858 &punpcklqdq
($D2,$D3); # 2:3
859 &punpckhqdq
($D4,$T1); # 4
860 &punpcklqdq
($T0,$T1); # 0:1
868 &pand
($T0,$MASK); # 0
869 &pand
($T1,$MASK); # 1
870 &pand
($D2,$MASK); # 2
871 &pand
($D3,$MASK); # 3
872 &por
($D4,&QWP
(0,"ebx")); # padbit, yes, always
874 &movdqa
(&QWP
($offbase+16*0,"esp"),$D0) if ($offbase);
875 &movdqa
(&QWP
($offbase+16*1,"esp"),$D1) if ($offbase);
877 &load_input
(16*2,16*5);
879 &jbe
(&label
("skip_loop"));
880 &jmp
(&label
("loop"));
882 &set_label
("loop",32);
883 ################################################################
884 # ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2
885 # ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^3+inp[7]*r
886 # \___________________/
887 # ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2+inp[8])*r^2
888 # ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^4+inp[7]*r^2+inp[9])*r
889 # \___________________/ \____________________/
890 ################################################################
892 &movdqa
($T2,&QWP
(16*(0-9),"edx")); # r0^2
893 &movdqa
(&QWP
(16*1,"eax"),$T1);
894 &movdqa
(&QWP
(16*2,"eax"),$D2);
895 &movdqa
(&QWP
(16*3,"eax"),$D3);
896 &movdqa
(&QWP
(16*4,"eax"),$D4);
898 ################################################################
899 # d4 = h4*r0 + h0*r4 + h1*r3 + h2*r2 + h3*r1
900 # d3 = h3*r0 + h0*r3 + h1*r2 + h2*r1 + h4*5*r4
901 # d2 = h2*r0 + h0*r2 + h1*r1 + h3*5*r4 + h4*5*r3
902 # d1 = h1*r0 + h0*r1 + h2*5*r4 + h3*5*r3 + h4*5*r2
903 # d0 = h0*r0 + h1*5*r4 + h2*5*r3 + h3*5*r2 + h4*5*r1
906 &pmuludq
($T0,$T2); # h0*r0
908 &pmuludq
($T1,$T2); # h1*r0
909 &pmuludq
($D2,$T2); # h2*r0
910 &pmuludq
($D3,$T2); # h3*r0
911 &pmuludq
($D4,$T2); # h4*r0
916 &pmuludq
($D0,&$addr(8)); # h1*s4
918 &pmuludq
($D1,&$addr(1)); # h0*r1
921 &pmuludq
($T2,&$addr(2)); # h0*r2
924 &pmuludq
($T0,&$addr(3)); # h0*r3
926 &movdqa
($T2,&QWP
(16*1,"eax")); # pull h1
927 &pmuludq
($T1,&$addr(4)); # h0*r4
931 &pmuludq
($T2,&$addr(1)); # h1*r1
934 &pmuludq
($T0,&$addr(2)); # h1*r2
936 &movdqa
($T2,&QWP
(16*2,"eax")); # pull h2
937 &pmuludq
($T1,&$addr(3)); # h1*r3
940 &pmuludq
($T2,&$addr(7)); # h2*s3
943 &pmuludq
($T0,&$addr(8)); # h2*s4
947 &pmuludq
($T1,&$addr(1)); # h2*r1
949 &movdqa
($T0,&QWP
(16*3,"eax")); # pull h3
950 &pmuludq
($T2,&$addr(2)); # h2*r2
953 &pmuludq
($T0,&$addr(6)); # h3*s2
956 &pmuludq
($T1,&$addr(7)); # h3*s3
959 &pmuludq
($T2,&$addr(8)); # h3*s4
962 &movdqa
($T1,&QWP
(16*4,"eax")); # pull h4
963 &pmuludq
($T0,&$addr(1)); # h3*r1
966 &pmuludq
($T1,&$addr(8)); # h4*s4
969 &pmuludq
($T2,&$addr(5)); # h4*s1
972 &pmuludq
($T0,&$addr(6)); # h4*s2
974 &movdqa
($MASK,&QWP
(64,"ebx"));
975 &pmuludq
($T1,&$addr(7)); # h4*s3
979 &pmuladd_alt
(sub { my $i=shift; &QWP
(16*($i-9),"edx"); });
981 &load_input
(-16*2,0);
982 &lea
("eax",&DWP
(-16*2,"esi"));
985 &paddd
($T0,&QWP
(16*(5+0),"esp")); # add hash value
986 &paddd
($T1,&QWP
(16*(5+1),"esp"));
987 &paddd
($D2,&QWP
(16*(5+2),"esp"));
988 &paddd
($D3,&QWP
(16*(5+3),"esp"));
989 &paddd
($D4,&QWP
(16*(5+4),"esp"));
991 &cmovb
("esi","eax");
992 &lea
("eax",&DWP
(16*10,"esp"));
994 &movdqa
($T2,&QWP
(16*0,"edx")); # r0^4
995 &movdqa
(&QWP
(16*1,"esp"),$D1);
996 &movdqa
(&QWP
(16*1,"eax"),$T1);
997 &movdqa
(&QWP
(16*2,"eax"),$D2);
998 &movdqa
(&QWP
(16*3,"eax"),$D3);
999 &movdqa
(&QWP
(16*4,"eax"),$D4);
1001 ################################################################
1002 # d4 += h4*r0 + h0*r4 + h1*r3 + h2*r2 + h3*r1
1003 # d3 += h3*r0 + h0*r3 + h1*r2 + h2*r1 + h4*5*r4
1004 # d2 += h2*r0 + h0*r2 + h1*r1 + h3*5*r4 + h4*5*r3
1005 # d1 += h1*r0 + h0*r1 + h2*5*r4 + h3*5*r3 + h4*5*r2
1006 # d0 += h0*r0 + h1*5*r4 + h2*5*r3 + h3*5*r2 + h4*5*r1
1009 &pmuludq
($T0,$T2); # h0*r0
1012 &pmuludq
($T1,$T2); # h1*r0
1013 &pmuludq
($D2,$T2); # h2*r0
1014 &pmuludq
($D3,$T2); # h3*r0
1015 &pmuludq
($D4,$T2); # h4*r0
1017 &paddq
($T1,&QWP
(16*1,"esp"));
1018 &paddq
($D2,&QWP
(16*2,"esp"));
1019 &paddq
($D3,&QWP
(16*3,"esp"));
1020 &paddq
($D4,&QWP
(16*4,"esp"));
1022 &pmuladd_alt
(sub { my $i=shift; &QWP
(16*$i,"edx"); });
1026 &load_input
(16*2,16*5);
1028 &ja
(&label
("loop"));
1030 &set_label
("skip_loop");
1031 ################################################################
1032 # multiply (inp[0:1]+hash) or inp[2:3] by r^2:r^1
1034 &pshufd
($T2,&QWP
(16*(0-9),"edx"),0x10);# r0^n
1036 &jnz
(&label
("long_tail"));
1038 &paddd
($T0,$D0); # add hash value
1040 &paddd
($D2,&QWP
(16*7,"esp"));
1041 &paddd
($D3,&QWP
(16*8,"esp"));
1042 &paddd
($D4,&QWP
(16*9,"esp"));
1044 &set_label
("long_tail");
1046 &movdqa
(&QWP
(16*0,"eax"),$T0);
1047 &movdqa
(&QWP
(16*1,"eax"),$T1);
1048 &movdqa
(&QWP
(16*2,"eax"),$D2);
1049 &movdqa
(&QWP
(16*3,"eax"),$D3);
1050 &movdqa
(&QWP
(16*4,"eax"),$D4);
1052 ################################################################
1053 # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
1054 # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
1055 # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
1056 # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
1057 # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
1059 &pmuludq
($T0,$T2); # h0*r0
1060 &pmuludq
($T1,$T2); # h1*r0
1061 &pmuludq
($D2,$T2); # h2*r0
1063 &pshufd
($T0,&QWP
(16*(1-9),"edx"),0x10);# r1^n
1064 &pmuludq
($D3,$T2); # h3*r0
1066 &pmuludq
($D4,$T2); # h4*r0
1068 &pmuladd
(sub { my ($reg,$i)=@_;
1069 &pshufd
($reg,&QWP
(16*($i-9),"edx"),0x10);
1072 &jz
(&label
("short_tail"));
1074 &load_input
(-16*2,0);
1076 &pshufd
($T2,&QWP
(16*0,"edx"),0x10); # r0^n
1077 &paddd
($T0,&QWP
(16*5,"esp")); # add hash value
1078 &paddd
($T1,&QWP
(16*6,"esp"));
1079 &paddd
($D2,&QWP
(16*7,"esp"));
1080 &paddd
($D3,&QWP
(16*8,"esp"));
1081 &paddd
($D4,&QWP
(16*9,"esp"));
1083 ################################################################
1084 # multiply inp[0:1] by r^4:r^3 and accumulate
1086 &movdqa
(&QWP
(16*0,"esp"),$T0);
1087 &pmuludq
($T0,$T2); # h0*r0
1088 &movdqa
(&QWP
(16*1,"esp"),$T1);
1089 &pmuludq
($T1,$T2); # h1*r0
1092 &pmuludq
($D2,$T2); # h2*r0
1095 &pmuludq
($D3,$T2); # h3*r0
1096 &paddq
($D2,&QWP
(16*2,"esp"));
1097 &movdqa
(&QWP
(16*2,"esp"),$T0);
1098 &pshufd
($T0,&QWP
(16*1,"edx"),0x10); # r1^n
1099 &paddq
($D3,&QWP
(16*3,"esp"));
1100 &movdqa
(&QWP
(16*3,"esp"),$T1);
1102 &pmuludq
($D4,$T2); # h4*r0
1103 &paddq
($D4,&QWP
(16*4,"esp"));
1104 &movdqa
(&QWP
(16*4,"esp"),$T1);
1106 &pmuladd
(sub { my ($reg,$i)=@_;
1107 &pshufd
($reg,&QWP
(16*$i,"edx"),0x10);
1110 &set_label
("short_tail");
1112 ################################################################
1113 # horizontal addition
1115 &pshufd
($T1,$D4,0b01001110
);
1116 &pshufd
($T0,$D3,0b01001110
);
1119 &pshufd
($T1,$D0,0b01001110
);
1120 &pshufd
($T0,$D1,0b01001110
);
1123 &pshufd
($T1,$D2,0b01001110
);
1126 &lazy_reduction
(sub { &paddq
($D2,$T1) });
1129 &movd
(&DWP
(-16*3+4*0,"edi"),$D0); # store hash value
1130 &movd
(&DWP
(-16*3+4*1,"edi"),$D1);
1131 &movd
(&DWP
(-16*3+4*2,"edi"),$D2);
1132 &movd
(&DWP
(-16*3+4*3,"edi"),$D3);
1133 &movd
(&DWP
(-16*3+4*4,"edi"),$D4);
1135 &set_label
("nodata");
1136 &function_end
("_poly1305_blocks_sse2");
1139 &function_begin
("_poly1305_emit_sse2");
1140 &mov
("ebp",&wparam
(0)); # context
1142 &cmp (&DWP
(4*5,"ebp"),0); # is_base2_26?
1143 &je
(&label
("enter_emit"));
1145 &mov
("eax",&DWP
(4*0,"ebp")); # load hash value
1146 &mov
("edi",&DWP
(4*1,"ebp"));
1147 &mov
("ecx",&DWP
(4*2,"ebp"));
1148 &mov
("edx",&DWP
(4*3,"ebp"));
1149 &mov
("esi",&DWP
(4*4,"ebp"));
1151 &mov
("ebx","edi"); # base 2^26 -> base 2^32
1173 &adc
("esi",0); # can be partially reduced
1175 &mov
("edi","esi"); # final reduction
1178 &lea
("ebp",&DWP
(0,"edi","edi",4)); # *5
1179 &mov
("edi",&wparam
(1)); # output
1181 &mov
("ebp",&wparam
(2)); # key
1187 &movd
($D0,"eax"); # offload original hash value
1188 &add
("eax",5); # compare to modulus
1196 &shr
("esi",2); # did it carry/borrow?
1198 &neg
("esi"); # do we choose (hash-modulus) ...
1203 &mov
(&DWP
(4*0,"edi"),"eax");
1205 &mov
(&DWP
(4*1,"edi"),"ebx");
1207 &mov
(&DWP
(4*2,"edi"),"ecx");
1209 &mov
(&DWP
(4*3,"edi"),"edx");
1212 ¬ ("esi"); # ... or original hash value?
1215 &or ("eax",&DWP
(4*0,"edi"));
1217 &or ("ebx",&DWP
(4*1,"edi"));
1219 &or ("ecx",&DWP
(4*2,"edi"));
1220 &or ("edx",&DWP
(4*3,"edi"));
1222 &add
("eax",&DWP
(4*0,"ebp")); # accumulate key
1223 &adc
("ebx",&DWP
(4*1,"ebp"));
1224 &mov
(&DWP
(4*0,"edi"),"eax");
1225 &adc
("ecx",&DWP
(4*2,"ebp"));
1226 &mov
(&DWP
(4*1,"edi"),"ebx");
1227 &adc
("edx",&DWP
(4*3,"ebp"));
1228 &mov
(&DWP
(4*2,"edi"),"ecx");
1229 &mov
(&DWP
(4*3,"edi"),"edx");
1230 &function_end
("_poly1305_emit_sse2");
1233 ########################################################################
1234 # Note that poly1305_init_avx2 operates on %xmm, I could have used
1235 # poly1305_init_sse2...
1238 &function_begin_B
("_poly1305_init_avx2");
1239 &vmovdqu
($D4,&QWP
(4*6,"edi")); # key base 2^32
1240 &lea
("edi",&DWP
(16*3,"edi")); # size optimization
1242 &sub ("esp",16*(9+5));
1245 #&vpand ($D4,$D4,&QWP(96,"ebx")); # magic mask
1246 &vmovdqa
($MASK,&QWP
(64,"ebx"));
1248 &vpand
($D0,$D4,$MASK); # -> base 2^26
1249 &vpsrlq
($D1,$D4,26);
1250 &vpsrldq
($D3,$D4,6);
1251 &vpand
($D1,$D1,$MASK);
1253 &vpsrlq
($D3,$D3,30);
1254 &vpand
($D2,$D2,$MASK);
1255 &vpand
($D3,$D3,$MASK);
1256 &vpsrldq
($D4,$D4,13);
1258 &lea
("edx",&DWP
(16*9,"esp")); # size optimization
1260 &set_label
("square");
1261 &vmovdqa
(&QWP
(16*0,"esp"),$D0);
1262 &vmovdqa
(&QWP
(16*1,"esp"),$D1);
1263 &vmovdqa
(&QWP
(16*2,"esp"),$D2);
1264 &vmovdqa
(&QWP
(16*3,"esp"),$D3);
1265 &vmovdqa
(&QWP
(16*4,"esp"),$D4);
1267 &vpslld
($T1,$D1,2);
1268 &vpslld
($T0,$D2,2);
1269 &vpaddd
($T1,$T1,$D1); # *5
1270 &vpaddd
($T0,$T0,$D2); # *5
1271 &vmovdqa
(&QWP
(16*5,"esp"),$T1);
1272 &vmovdqa
(&QWP
(16*6,"esp"),$T0);
1273 &vpslld
($T1,$D3,2);
1274 &vpslld
($T0,$D4,2);
1275 &vpaddd
($T1,$T1,$D3); # *5
1276 &vpaddd
($T0,$T0,$D4); # *5
1277 &vmovdqa
(&QWP
(16*7,"esp"),$T1);
1278 &vmovdqa
(&QWP
(16*8,"esp"),$T0);
1280 &vpshufd
($T0,$D0,0b01000100
);
1282 &vpshufd
($D1,$D1,0b01000100
);
1283 &vpshufd
($D2,$D2,0b01000100
);
1284 &vpshufd
($D3,$D3,0b01000100
);
1285 &vpshufd
($D4,$D4,0b01000100
);
1286 &vmovdqa
(&QWP
(16*0,"edx"),$T0);
1287 &vmovdqa
(&QWP
(16*1,"edx"),$D1);
1288 &vmovdqa
(&QWP
(16*2,"edx"),$D2);
1289 &vmovdqa
(&QWP
(16*3,"edx"),$D3);
1290 &vmovdqa
(&QWP
(16*4,"edx"),$D4);
1292 ################################################################
1293 # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
1294 # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
1295 # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
1296 # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
1297 # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
1299 &vpmuludq
($D4,$D4,$D0); # h4*r0
1300 &vpmuludq
($D3,$D3,$D0); # h3*r0
1301 &vpmuludq
($D2,$D2,$D0); # h2*r0
1302 &vpmuludq
($D1,$D1,$D0); # h1*r0
1303 &vpmuludq
($D0,$T0,$D0); # h0*r0
1305 &vpmuludq
($T0,$T1,&QWP
(16*3,"edx")); # r1*h3
1306 &vpaddq
($D4,$D4,$T0);
1307 &vpmuludq
($T2,$T1,&QWP
(16*2,"edx")); # r1*h2
1308 &vpaddq
($D3,$D3,$T2);
1309 &vpmuludq
($T0,$T1,&QWP
(16*1,"edx")); # r1*h1
1310 &vpaddq
($D2,$D2,$T0);
1311 &vmovdqa
($T2,&QWP
(16*5,"esp")); # s1
1312 &vpmuludq
($T1,$T1,&QWP
(16*0,"edx")); # r1*h0
1313 &vpaddq
($D1,$D1,$T1);
1314 &vmovdqa
($T0,&QWP
(16*2,"esp")); # r2
1315 &vpmuludq
($T2,$T2,&QWP
(16*4,"edx")); # s1*h4
1316 &vpaddq
($D0,$D0,$T2);
1318 &vpmuludq
($T1,$T0,&QWP
(16*2,"edx")); # r2*h2
1319 &vpaddq
($D4,$D4,$T1);
1320 &vpmuludq
($T2,$T0,&QWP
(16*1,"edx")); # r2*h1
1321 &vpaddq
($D3,$D3,$T2);
1322 &vmovdqa
($T1,&QWP
(16*6,"esp")); # s2
1323 &vpmuludq
($T0,$T0,&QWP
(16*0,"edx")); # r2*h0
1324 &vpaddq
($D2,$D2,$T0);
1325 &vpmuludq
($T2,$T1,&QWP
(16*4,"edx")); # s2*h4
1326 &vpaddq
($D1,$D1,$T2);
1327 &vmovdqa
($T0,&QWP
(16*3,"esp")); # r3
1328 &vpmuludq
($T1,$T1,&QWP
(16*3,"edx")); # s2*h3
1329 &vpaddq
($D0,$D0,$T1);
1331 &vpmuludq
($T2,$T0,&QWP
(16*1,"edx")); # r3*h1
1332 &vpaddq
($D4,$D4,$T2);
1333 &vmovdqa
($T1,&QWP
(16*7,"esp")); # s3
1334 &vpmuludq
($T0,$T0,&QWP
(16*0,"edx")); # r3*h0
1335 &vpaddq
($D3,$D3,$T0);
1336 &vpmuludq
($T2,$T1,&QWP
(16*4,"edx")); # s3*h4
1337 &vpaddq
($D2,$D2,$T2);
1338 &vpmuludq
($T0,$T1,&QWP
(16*3,"edx")); # s3*h3
1339 &vpaddq
($D1,$D1,$T0);
1340 &vmovdqa
($T2,&QWP
(16*4,"esp")); # r4
1341 &vpmuludq
($T1,$T1,&QWP
(16*2,"edx")); # s3*h2
1342 &vpaddq
($D0,$D0,$T1);
1344 &vmovdqa
($T0,&QWP
(16*8,"esp")); # s4
1345 &vpmuludq
($T2,$T2,&QWP
(16*0,"edx")); # r4*h0
1346 &vpaddq
($D4,$D4,$T2);
1347 &vpmuludq
($T1,$T0,&QWP
(16*4,"edx")); # s4*h4
1348 &vpaddq
($D3,$D3,$T1);
1349 &vpmuludq
($T2,$T0,&QWP
(16*1,"edx")); # s4*h1
1350 &vpaddq
($D0,$D0,$T2);
1351 &vpmuludq
($T1,$T0,&QWP
(16*2,"edx")); # s4*h2
1352 &vpaddq
($D1,$D1,$T1);
1353 &vmovdqa
($MASK,&QWP
(64,"ebx"));
1354 &vpmuludq
($T0,$T0,&QWP
(16*3,"edx")); # s4*h3
1355 &vpaddq
($D2,$D2,$T0);
1357 ################################################################
1359 &vpsrlq
($T0,$D3,26);
1360 &vpand
($D3,$D3,$MASK);
1361 &vpsrlq
($T1,$D0,26);
1362 &vpand
($D0,$D0,$MASK);
1363 &vpaddq
($D4,$D4,$T0); # h3 -> h4
1364 &vpaddq
($D1,$D1,$T1); # h0 -> h1
1365 &vpsrlq
($T0,$D4,26);
1366 &vpand
($D4,$D4,$MASK);
1367 &vpsrlq
($T1,$D1,26);
1368 &vpand
($D1,$D1,$MASK);
1369 &vpaddq
($D2,$D2,$T1); # h1 -> h2
1370 &vpaddd
($D0,$D0,$T0);
1371 &vpsllq
($T0,$T0,2);
1372 &vpsrlq
($T1,$D2,26);
1373 &vpand
($D2,$D2,$MASK);
1374 &vpaddd
($D0,$D0,$T0); # h4 -> h0
1375 &vpaddd
($D3,$D3,$T1); # h2 -> h3
1376 &vpsrlq
($T1,$D3,26);
1377 &vpsrlq
($T0,$D0,26);
1378 &vpand
($D0,$D0,$MASK);
1379 &vpand
($D3,$D3,$MASK);
1380 &vpaddd
($D1,$D1,$T0); # h0 -> h1
1381 &vpaddd
($D4,$D4,$T1); # h3 -> h4
1384 &jz
(&label
("square_break"));
1386 &vpunpcklqdq
($D0,$D0,&QWP
(16*0,"esp")); # 0:r^1:0:r^2
1387 &vpunpcklqdq
($D1,$D1,&QWP
(16*1,"esp"));
1388 &vpunpcklqdq
($D2,$D2,&QWP
(16*2,"esp"));
1389 &vpunpcklqdq
($D3,$D3,&QWP
(16*3,"esp"));
1390 &vpunpcklqdq
($D4,$D4,&QWP
(16*4,"esp"));
1391 &jmp
(&label
("square"));
1393 &set_label
("square_break");
1394 &vpsllq
($D0,$D0,32); # -> r^3:0:r^4:0
1395 &vpsllq
($D1,$D1,32);
1396 &vpsllq
($D2,$D2,32);
1397 &vpsllq
($D3,$D3,32);
1398 &vpsllq
($D4,$D4,32);
1399 &vpor
($D0,$D0,&QWP
(16*0,"esp")); # r^3:r^1:r^4:r^2
1400 &vpor
($D1,$D1,&QWP
(16*1,"esp"));
1401 &vpor
($D2,$D2,&QWP
(16*2,"esp"));
1402 &vpor
($D3,$D3,&QWP
(16*3,"esp"));
1403 &vpor
($D4,$D4,&QWP
(16*4,"esp"));
1405 &vpshufd
($D0,$D0,0b10001101
); # -> r^1:r^2:r^3:r^4
1406 &vpshufd
($D1,$D1,0b10001101
);
1407 &vpshufd
($D2,$D2,0b10001101
);
1408 &vpshufd
($D3,$D3,0b10001101
);
1409 &vpshufd
($D4,$D4,0b10001101
);
1411 &vmovdqu
(&QWP
(16*0,"edi"),$D0); # save the table
1412 &vmovdqu
(&QWP
(16*1,"edi"),$D1);
1413 &vmovdqu
(&QWP
(16*2,"edi"),$D2);
1414 &vmovdqu
(&QWP
(16*3,"edi"),$D3);
1415 &vmovdqu
(&QWP
(16*4,"edi"),$D4);
1417 &vpslld
($T1,$D1,2);
1418 &vpslld
($T0,$D2,2);
1419 &vpaddd
($T1,$T1,$D1); # *5
1420 &vpaddd
($T0,$T0,$D2); # *5
1421 &vmovdqu
(&QWP
(16*5,"edi"),$T1);
1422 &vmovdqu
(&QWP
(16*6,"edi"),$T0);
1423 &vpslld
($T1,$D3,2);
1424 &vpslld
($T0,$D4,2);
1425 &vpaddd
($T1,$T1,$D3); # *5
1426 &vpaddd
($T0,$T0,$D4); # *5
1427 &vmovdqu
(&QWP
(16*7,"edi"),$T1);
1428 &vmovdqu
(&QWP
(16*8,"edi"),$T0);
1431 &lea
("edi",&DWP
(-16*3,"edi")); # size de-optimization
1433 &function_end_B
("_poly1305_init_avx2");
1435 ########################################################################
1436 # now it's time to switch to %ymm
1438 my ($D0,$D1,$D2,$D3,$D4,$T0,$T1,$T2)=map("ymm$_",(0..7));
1441 sub X
{ my $reg=shift; $reg=~s/^ymm/xmm/; $reg; }
1444 &function_begin
("_poly1305_blocks_avx2");
1445 &mov
("edi",&wparam
(0)); # ctx
1446 &mov
("esi",&wparam
(1)); # inp
1447 &mov
("ecx",&wparam
(2)); # len
1449 &mov
("eax",&DWP
(4*5,"edi")); # is_base2_26
1451 &jz
(&label
("nodata"));
1453 &jae
(&label
("enter_avx2"));
1454 &test
("eax","eax"); # is_base2_26?
1455 &jz
(&label
("enter_blocks"));
1457 &set_label
("enter_avx2");
1460 &call
(&label
("pic_point"));
1461 &set_label
("pic_point");
1463 &lea
("ebx",&DWP
(&label
("const_sse2")."-".&label
("pic_point"),"ebx"));
1465 &test
("eax","eax"); # is_base2_26?
1466 &jnz
(&label
("base2_26"));
1468 &call
("_poly1305_init_avx2");
1470 ################################################# base 2^32 -> base 2^26
1471 &mov
("eax",&DWP
(0,"edi"));
1472 &mov
("ecx",&DWP
(3,"edi"));
1473 &mov
("edx",&DWP
(6,"edi"));
1474 &mov
("esi",&DWP
(9,"edi"));
1475 &mov
("ebp",&DWP
(13,"edi"));
1478 &and ("eax",0x3ffffff);
1480 &and ("ecx",0x3ffffff);
1482 &and ("edx",0x3ffffff);
1484 &mov
(&DWP
(4*0,"edi"),"eax");
1485 &mov
(&DWP
(4*1,"edi"),"ecx");
1486 &mov
(&DWP
(4*2,"edi"),"edx");
1487 &mov
(&DWP
(4*3,"edi"),"esi");
1488 &mov
(&DWP
(4*4,"edi"),"ebp");
1489 &mov
(&DWP
(4*5,"edi"),1); # is_base2_26
1491 &mov
("esi",&wparam
(1)); # [reload] inp
1492 &mov
("ecx",&wparam
(2)); # [reload] len
1494 &set_label
("base2_26");
1495 &mov
("eax",&wparam
(3)); # padbit
1498 &sub ("esp",32*(5+9));
1499 &and ("esp",-512); # ensure that frame
1500 # doesn't cross page
1501 # boundary, which is
1503 # misaligned 32-byte
1506 ################################################################
1507 # expand and copy pre-calculated table to stack
1509 &vmovdqu
(&X
($D0),&QWP
(16*(3+0),"edi"));
1510 &lea
("edx",&DWP
(32*5+128,"esp")); # +128 size optimization
1511 &vmovdqu
(&X
($D1),&QWP
(16*(3+1),"edi"));
1512 &vmovdqu
(&X
($D2),&QWP
(16*(3+2),"edi"));
1513 &vmovdqu
(&X
($D3),&QWP
(16*(3+3),"edi"));
1514 &vmovdqu
(&X
($D4),&QWP
(16*(3+4),"edi"));
1515 &lea
("edi",&DWP
(16*3,"edi")); # size optimization
1516 &vpermq
($D0,$D0,0b01000000
); # 00001234 -> 12343434
1517 &vpermq
($D1,$D1,0b01000000
);
1518 &vpermq
($D2,$D2,0b01000000
);
1519 &vpermq
($D3,$D3,0b01000000
);
1520 &vpermq
($D4,$D4,0b01000000
);
1521 &vpshufd
($D0,$D0,0b11001000
); # 12343434 -> 14243444
1522 &vpshufd
($D1,$D1,0b11001000
);
1523 &vpshufd
($D2,$D2,0b11001000
);
1524 &vpshufd
($D3,$D3,0b11001000
);
1525 &vpshufd
($D4,$D4,0b11001000
);
1526 &vmovdqa
(&QWP
(32*0-128,"edx"),$D0);
1527 &vmovdqu
(&X
($D0),&QWP
(16*5,"edi"));
1528 &vmovdqa
(&QWP
(32*1-128,"edx"),$D1);
1529 &vmovdqu
(&X
($D1),&QWP
(16*6,"edi"));
1530 &vmovdqa
(&QWP
(32*2-128,"edx"),$D2);
1531 &vmovdqu
(&X
($D2),&QWP
(16*7,"edi"));
1532 &vmovdqa
(&QWP
(32*3-128,"edx"),$D3);
1533 &vmovdqu
(&X
($D3),&QWP
(16*8,"edi"));
1534 &vmovdqa
(&QWP
(32*4-128,"edx"),$D4);
1535 &vpermq
($D0,$D0,0b01000000
);
1536 &vpermq
($D1,$D1,0b01000000
);
1537 &vpermq
($D2,$D2,0b01000000
);
1538 &vpermq
($D3,$D3,0b01000000
);
1539 &vpshufd
($D0,$D0,0b11001000
);
1540 &vpshufd
($D1,$D1,0b11001000
);
1541 &vpshufd
($D2,$D2,0b11001000
);
1542 &vpshufd
($D3,$D3,0b11001000
);
1543 &vmovdqa
(&QWP
(32*5-128,"edx"),$D0);
1544 &vmovd
(&X
($D0),&DWP
(-16*3+4*0,"edi"));# load hash value
1545 &vmovdqa
(&QWP
(32*6-128,"edx"),$D1);
1546 &vmovd
(&X
($D1),&DWP
(-16*3+4*1,"edi"));
1547 &vmovdqa
(&QWP
(32*7-128,"edx"),$D2);
1548 &vmovd
(&X
($D2),&DWP
(-16*3+4*2,"edi"));
1549 &vmovdqa
(&QWP
(32*8-128,"edx"),$D3);
1550 &vmovd
(&X
($D3),&DWP
(-16*3+4*3,"edi"));
1551 &vmovd
(&X
($D4),&DWP
(-16*3+4*4,"edi"));
1552 &vmovdqa
($MASK,&QWP
(64,"ebx"));
1553 &neg
("eax"); # padbit
1556 &jz
(&label
("even"));
1562 &vmovdqu
(&X
($T0),&QWP
(16*0,"esi"));
1564 &jb
(&label
("one"));
1566 &vmovdqu
(&X
($T1),&QWP
(16*1,"esi"));
1567 &je
(&label
("two"));
1569 &vinserti128
($T0,$T0,&QWP
(16*2,"esi"),1);
1570 &lea
("esi",&DWP
(16*3,"esi"));
1571 &lea
("ebx",&DWP
(8,"ebx")); # three padbits
1572 &lea
("edx",&DWP
(32*5+128+8,"esp")); # --:r^1:r^2:r^3 (*)
1573 &jmp
(&label
("tail"));
1576 &lea
("esi",&DWP
(16*2,"esi"));
1577 &lea
("ebx",&DWP
(16,"ebx")); # two padbits
1578 &lea
("edx",&DWP
(32*5+128+16,"esp"));# --:--:r^1:r^2 (*)
1579 &jmp
(&label
("tail"));
1582 &lea
("esi",&DWP
(16*1,"esi"));
1583 &vpxor
($T1,$T1,$T1);
1584 &lea
("ebx",&DWP
(32,"ebx","eax",8)); # one or no padbits
1585 &lea
("edx",&DWP
(32*5+128+24,"esp"));# --:--:--:r^1 (*)
1586 &jmp
(&label
("tail"));
1588 # (*) spots marked with '--' are data from next table entry, but they
1589 # are multiplied by 0 and therefore rendered insignificant
1591 &set_label
("even",32);
1592 &vmovdqu
(&X
($T0),&QWP
(16*0,"esi")); # load input
1593 &vmovdqu
(&X
($T1),&QWP
(16*1,"esi"));
1594 &vinserti128
($T0,$T0,&QWP
(16*2,"esi"),1);
1595 &vinserti128
($T1,$T1,&QWP
(16*3,"esi"),1);
1596 &lea
("esi",&DWP
(16*4,"esi"));
1598 &jz
(&label
("tail"));
1601 ################################################################
1602 # ((inp[0]*r^4+r[4])*r^4+r[8])*r^4
1603 # ((inp[1]*r^4+r[5])*r^4+r[9])*r^3
1604 # ((inp[2]*r^4+r[6])*r^4+r[10])*r^2
1605 # ((inp[3]*r^4+r[7])*r^4+r[11])*r^1
1606 # \________/ \_______/
1607 ################################################################
1610 &vmovdqa
(&QWP
(32*2,"esp"),$D2);
1611 &vpsrldq
($D2,$T0,6); # splat input
1612 &vmovdqa
(&QWP
(32*0,"esp"),$D0);
1613 &vpsrldq
($D0,$T1,6);
1614 &vmovdqa
(&QWP
(32*1,"esp"),$D1);
1615 &vpunpckhqdq
($D1,$T0,$T1); # 4
1616 &vpunpcklqdq
($T0,$T0,$T1); # 0:1
1617 &vpunpcklqdq
($D2,$D2,$D0); # 2:3
1619 &vpsrlq
($D0,$D2,30);
1620 &vpsrlq
($D2,$D2,4);
1621 &vpsrlq
($T1,$T0,26);
1622 &vpsrlq
($D1,$D1,40); # 4
1623 &vpand
($D2,$D2,$MASK); # 2
1624 &vpand
($T0,$T0,$MASK); # 0
1625 &vpand
($T1,$T1,$MASK); # 1
1626 &vpand
($D0,$D0,$MASK); # 3 (*)
1627 &vpor
($D1,$D1,&QWP
(0,"ebx")); # padbit, yes, always
1629 # (*) note that output is counterintuitive, inp[3:4] is
1630 # returned in $D1-2, while $D3-4 are preserved;
1637 &vpaddq
($D2,$D2,&QWP
(32*2,"esp")); # add hash value
1638 &vpaddq
($T0,$T0,&QWP
(32*0,"esp"));
1639 &vpaddq
($T1,$T1,&QWP
(32*1,"esp"));
1640 &vpaddq
($D0,$D0,$D3);
1641 &vpaddq
($D1,$D1,$D4);
1643 ################################################################
1644 # d3 = h2*r1 + h0*r3 + h1*r2 + h3*r0 + h4*5*r4
1645 # d4 = h2*r2 + h0*r4 + h1*r3 + h3*r1 + h4*r0
1646 # d0 = h2*5*r3 + h0*r0 + h1*5*r4 + h3*5*r2 + h4*5*r1
1647 # d1 = h2*5*r4 + h0*r1 + h1*r0 + h3*5*r3 + h4*5*r2
1648 # d2 = h2*r0 + h0*r2 + h1*r1 + h3*5*r4 + h4*5*r3
1650 &vpmuludq
($D3,$D2,&$addr(1)); # d3 = h2*r1
1651 &vmovdqa
(QWP
(32*1,"esp"),$T1);
1652 &vpmuludq
($D4,$D2,&$addr(2)); # d4 = h2*r2
1653 &vmovdqa
(QWP
(32*3,"esp"),$D0);
1654 &vpmuludq
($D0,$D2,&$addr(7)); # d0 = h2*s3
1655 &vmovdqa
(QWP
(32*4,"esp"),$D1);
1656 &vpmuludq
($D1,$D2,&$addr(8)); # d1 = h2*s4
1657 &vpmuludq
($D2,$D2,&$addr(0)); # d2 = h2*r0
1659 &vpmuludq
($T2,$T0,&$addr(3)); # h0*r3
1660 &vpaddq
($D3,$D3,$T2); # d3 += h0*r3
1661 &vpmuludq
($T1,$T0,&$addr(4)); # h0*r4
1662 &vpaddq
($D4,$D4,$T1); # d4 + h0*r4
1663 &vpmuludq
($T2,$T0,&$addr(0)); # h0*r0
1664 &vpaddq
($D0,$D0,$T2); # d0 + h0*r0
1665 &vmovdqa
($T2,&QWP
(32*1,"esp")); # h1
1666 &vpmuludq
($T1,$T0,&$addr(1)); # h0*r1
1667 &vpaddq
($D1,$D1,$T1); # d1 += h0*r1
1668 &vpmuludq
($T0,$T0,&$addr(2)); # h0*r2
1669 &vpaddq
($D2,$D2,$T0); # d2 += h0*r2
1671 &vpmuludq
($T1,$T2,&$addr(2)); # h1*r2
1672 &vpaddq
($D3,$D3,$T1); # d3 += h1*r2
1673 &vpmuludq
($T0,$T2,&$addr(3)); # h1*r3
1674 &vpaddq
($D4,$D4,$T0); # d4 += h1*r3
1675 &vpmuludq
($T1,$T2,&$addr(8)); # h1*s4
1676 &vpaddq
($D0,$D0,$T1); # d0 += h1*s4
1677 &vmovdqa
($T1,&QWP
(32*3,"esp")); # h3
1678 &vpmuludq
($T0,$T2,&$addr(0)); # h1*r0
1679 &vpaddq
($D1,$D1,$T0); # d1 += h1*r0
1680 &vpmuludq
($T2,$T2,&$addr(1)); # h1*r1
1681 &vpaddq
($D2,$D2,$T2); # d2 += h1*r1
1683 &vpmuludq
($T0,$T1,&$addr(0)); # h3*r0
1684 &vpaddq
($D3,$D3,$T0); # d3 += h3*r0
1685 &vpmuludq
($T2,$T1,&$addr(1)); # h3*r1
1686 &vpaddq
($D4,$D4,$T2); # d4 += h3*r1
1687 &vpmuludq
($T0,$T1,&$addr(6)); # h3*s2
1688 &vpaddq
($D0,$D0,$T0); # d0 += h3*s2
1689 &vmovdqa
($T0,&QWP
(32*4,"esp")); # h4
1690 &vpmuludq
($T2,$T1,&$addr(7)); # h3*s3
1691 &vpaddq
($D1,$D1,$T2); # d1+= h3*s3
1692 &vpmuludq
($T1,$T1,&$addr(8)); # h3*s4
1693 &vpaddq
($D2,$D2,$T1); # d2 += h3*s4
1695 &vpmuludq
($T2,$T0,&$addr(8)); # h4*s4
1696 &vpaddq
($D3,$D3,$T2); # d3 += h4*s4
1697 &vpmuludq
($T1,$T0,&$addr(5)); # h4*s1
1698 &vpaddq
($D0,$D0,$T1); # d0 += h4*s1
1699 &vpmuludq
($T2,$T0,&$addr(0)); # h4*r0
1700 &vpaddq
($D4,$D4,$T2); # d4 += h4*r0
1701 &vmovdqa
($MASK,&QWP
(64,"ebx"));
1702 &vpmuludq
($T1,$T0,&$addr(6)); # h4*s2
1703 &vpaddq
($D1,$D1,$T1); # d1 += h4*s2
1704 &vpmuludq
($T0,$T0,&$addr(7)); # h4*s3
1705 &vpaddq
($D2,$D2,$T0); # d2 += h4*s3
1707 &vpmuladd
(sub { my $i=shift; &QWP
(32*$i-128,"edx"); });
1709 sub vlazy_reduction
{
1710 ################################################################
1713 &vpsrlq
($T0,$D3,26);
1714 &vpand
($D3,$D3,$MASK);
1715 &vpsrlq
($T1,$D0,26);
1716 &vpand
($D0,$D0,$MASK);
1717 &vpaddq
($D4,$D4,$T0); # h3 -> h4
1718 &vpaddq
($D1,$D1,$T1); # h0 -> h1
1719 &vpsrlq
($T0,$D4,26);
1720 &vpand
($D4,$D4,$MASK);
1721 &vpsrlq
($T1,$D1,26);
1722 &vpand
($D1,$D1,$MASK);
1723 &vpaddq
($D2,$D2,$T1); # h1 -> h2
1724 &vpaddq
($D0,$D0,$T0);
1725 &vpsllq
($T0,$T0,2);
1726 &vpsrlq
($T1,$D2,26);
1727 &vpand
($D2,$D2,$MASK);
1728 &vpaddq
($D0,$D0,$T0); # h4 -> h0
1729 &vpaddq
($D3,$D3,$T1); # h2 -> h3
1730 &vpsrlq
($T1,$D3,26);
1731 &vpsrlq
($T0,$D0,26);
1732 &vpand
($D0,$D0,$MASK);
1733 &vpand
($D3,$D3,$MASK);
1734 &vpaddq
($D1,$D1,$T0); # h0 -> h1
1735 &vpaddq
($D4,$D4,$T1); # h3 -> h4
1739 &vmovdqu
(&X
($T0),&QWP
(16*0,"esi")); # load input
1740 &vmovdqu
(&X
($T1),&QWP
(16*1,"esi"));
1741 &vinserti128
($T0,$T0,&QWP
(16*2,"esi"),1);
1742 &vinserti128
($T1,$T1,&QWP
(16*3,"esi"),1);
1743 &lea
("esi",&DWP
(16*4,"esi"));
1745 &jnz
(&label
("loop"));
1749 &and ("ebx",-64); # restore pointer
1751 &vpmuladd
(sub { my $i=shift; &QWP
(4+32*$i-128,"edx"); });
1753 ################################################################
1754 # horizontal addition
1756 &vpsrldq
($T0,$D4,8);
1757 &vpsrldq
($T1,$D3,8);
1758 &vpaddq
($D4,$D4,$T0);
1759 &vpsrldq
($T0,$D0,8);
1760 &vpaddq
($D3,$D3,$T1);
1761 &vpsrldq
($T1,$D1,8);
1762 &vpaddq
($D0,$D0,$T0);
1763 &vpsrldq
($T0,$D2,8);
1764 &vpaddq
($D1,$D1,$T1);
1765 &vpermq
($T1,$D4,2); # keep folding
1766 &vpaddq
($D2,$D2,$T0);
1767 &vpermq
($T0,$D3,2);
1768 &vpaddq
($D4,$D4,$T1);
1769 &vpermq
($T1,$D0,2);
1770 &vpaddq
($D3,$D3,$T0);
1771 &vpermq
($T0,$D1,2);
1772 &vpaddq
($D0,$D0,$T1);
1773 &vpermq
($T1,$D2,2);
1774 &vpaddq
($D1,$D1,$T0);
1775 &vpaddq
($D2,$D2,$T1);
1780 &je
(&label
("done"));
1782 ################################################################
1783 # clear all but single word
1785 &vpshufd
(&X
($D0),&X
($D0),0b11111100
);
1786 &lea
("edx",&DWP
(32*5+128,"esp")); # restore pointer
1787 &vpshufd
(&X
($D1),&X
($D1),0b11111100
);
1788 &vpshufd
(&X
($D2),&X
($D2),0b11111100
);
1789 &vpshufd
(&X
($D3),&X
($D3),0b11111100
);
1790 &vpshufd
(&X
($D4),&X
($D4),0b11111100
);
1791 &jmp
(&label
("even"));
1793 &set_label
("done",16);
1794 &vmovd
(&DWP
(-16*3+4*0,"edi"),&X
($D0));# store hash value
1795 &vmovd
(&DWP
(-16*3+4*1,"edi"),&X
($D1));
1796 &vmovd
(&DWP
(-16*3+4*2,"edi"),&X
($D2));
1797 &vmovd
(&DWP
(-16*3+4*3,"edi"),&X
($D3));
1798 &vmovd
(&DWP
(-16*3+4*4,"edi"),&X
($D4));
1801 &set_label
("nodata");
1802 &function_end
("_poly1305_blocks_avx2");
1804 &set_label
("const_sse2",64);
1805 &data_word
(1<<24,0, 1<<24,0, 1<<24,0, 1<<24,0);
1806 &data_word
(0,0, 0,0, 0,0, 0,0);
1807 &data_word
(0x03ffffff,0,0x03ffffff,0, 0x03ffffff,0, 0x03ffffff,0);
1808 &data_word
(0x0fffffff,0x0ffffffc,0x0ffffffc,0x0ffffffc);
1810 &asciz
("Poly1305 for x86, CRYPTOGAMS by <appro\@openssl.org>");