# For reference! This code delivers ~80% of rc4-amd64.pl
# performance on the same Opteron machine.
# (**) This number requires compressed key schedule set up by
-# private_RC4_set_key [see commentary below for further details].
+# RC4_set_key [see commentary below for further details].
#
# <appro@fy.chalmers.se>
+# May 2011
+#
+# Optimize for Core2 and Westmere [and incidentally Opteron]. Current
+# performance in cycles per processed byte (less is better) and
+# improvement relative to previous version of this module is:
+#
+# Pentium 10.2 # original numbers
+# Pentium III 7.8(*)
+# Intel P4 7.5
+#
+# Opteron 6.1/+20% # new MMX numbers
+# Core2 5.3/+67%(**)
+# Westmere 5.1/+94%(**)
+# Sandy Bridge 5.0/+8%
+# Atom 12.6/+6%
+#
+# (*) PIII can actually deliver 6.6 cycles per byte with MMX code,
+# but this specific code performs poorly on Core2. And vice
+# versa, below MMX/SSE code delivering 5.8/7.1 on Core2 performs
+# poorly on PIII, at 8.0/14.5:-( As PIII is not a "hot" CPU
+# [anymore], I chose to discard PIII-specific code path and opt
+# for original IALU-only code, which is why MMX/SSE code path
+# is guarded by SSE2 bit (see below), not MMX/SSE.
+# (**) Performance vs. block size on Core2 and Westmere had a maximum
+# at ... 64 bytes block size. And it was quite a maximum, 40-60%
+# in comparison to largest 8KB block size. Above improvement
+# coefficients are for the largest block size.
+
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";
&$func ($out,&DWP(0,$dat,$ty,4));
}
+if ($alt=0) {
+ # >20% faster on Atom and Sandy Bridge[!], 8% faster on Opteron,
+ # but ~40% slower on Core2 and Westmere... Attempt to add movz
+ # brings down Opteron by 25%, Atom and Sandy Bridge by 15%, yet
+ # on Core2 with movz it's almost 20% slower than below alternative
+ # code... Yes, it's a total mess...
+ my @XX=($xx,$out);
+ $RC4_loop_mmx = sub { # SSE actually...
+ my $i=shift;
+ my $j=$i<=0?0:$i>>1;
+ my $mm=$i<=0?"mm0":"mm".($i&1);
+
+ &add (&LB($yy),&LB($tx));
+ &lea (@XX[1],&DWP(1,@XX[0]));
+ &pxor ("mm2","mm0") if ($i==0);
+ &psllq ("mm1",8) if ($i==0);
+ &and (@XX[1],0xff);
+ &pxor ("mm0","mm0") if ($i<=0);
+ &mov ($ty,&DWP(0,$dat,$yy,4));
+ &mov (&DWP(0,$dat,$yy,4),$tx);
+ &pxor ("mm1","mm2") if ($i==0);
+ &mov (&DWP(0,$dat,$XX[0],4),$ty);
+ &add (&LB($ty),&LB($tx));
+ &movd (@XX[0],"mm7") if ($i==0);
+ &mov ($tx,&DWP(0,$dat,@XX[1],4));
+ &pxor ("mm1","mm1") if ($i==1);
+ &movq ("mm2",&QWP(0,$inp)) if ($i==1);
+ &movq (&QWP(-8,(@XX[0],$inp)),"mm1") if ($i==0);
+ &pinsrw ($mm,&DWP(0,$dat,$ty,4),$j);
+
+ push (@XX,shift(@XX)) if ($i>=0);
+ }
+} else {
+ # Using pinsrw here improves performane on Intel CPUs by 2-3%, but
+ # brings down AMD by 7%...
+ $RC4_loop_mmx = sub {
+ my $i=shift;
+
+ &add (&LB($yy),&LB($tx));
+ &psllq ("mm1",8*(($i-1)&7)) if (abs($i)!=1);
+ &mov ($ty,&DWP(0,$dat,$yy,4));
+ &mov (&DWP(0,$dat,$yy,4),$tx);
+ &mov (&DWP(0,$dat,$xx,4),$ty);
+ &inc ($xx);
+ &add ($ty,$tx);
+ &movz ($xx,&LB($xx)); # (*)
+ &movz ($ty,&LB($ty)); # (*)
+ &pxor ("mm2",$i==1?"mm0":"mm1") if ($i>=0);
+ &movq ("mm0",&QWP(0,$inp)) if ($i<=0);
+ &movq (&QWP(-8,($out,$inp)),"mm2") if ($i==0);
+ &mov ($tx,&DWP(0,$dat,$xx,4));
+ &movd ($i>0?"mm1":"mm2",&DWP(0,$dat,$ty,4));
+
+ # (*) This is the key to Core2 and Westmere performance.
+ # Whithout movz out-of-order execution logic confuses
+ # itself and fails to reorder loads and stores. Problem
+ # appears to be fixed in Sandy Bridge...
+ }
+}
+
+&external_label("OPENSSL_ia32cap_P");
+
# void RC4(RC4_KEY *key,size_t len,const unsigned char *inp,unsigned char *out);
&function_begin("RC4");
&mov ($dat,&wparam(0)); # load key schedule pointer
&and ($ty,-4); # how many 4-byte chunks?
&jz (&label("loop1"));
+ &test ($ty,-8);
+ &mov (&wparam(3),$out); # $out as accumulator in these loops
+ &jz (&label("go4loop4"));
+
+ &picmeup($out,"OPENSSL_ia32cap_P");
+ &bt (&DWP(0,$out),26); # check SSE2 bit [could have been MMX]
+ &jnc (&label("go4loop4"));
+
+ &mov ($out,&wparam(3)) if (!$alt);
+ &movd ("mm7",&wparam(3)) if ($alt);
+ &and ($ty,-8);
+ &lea ($ty,&DWP(-8,$inp,$ty));
+ &mov (&DWP(-4,$dat),$ty); # save input+(len/8)*8-8
+
+ &$RC4_loop_mmx(-1);
+ &jmp(&label("loop_mmx_enter"));
+
+ &set_label("loop_mmx",16);
+ &$RC4_loop_mmx(0);
+ &set_label("loop_mmx_enter");
+ for ($i=1;$i<8;$i++) { &$RC4_loop_mmx($i); }
+ &mov ($ty,$yy);
+ &xor ($yy,$yy); # this is second key to Core2
+ &mov (&LB($yy),&LB($ty)); # and Westmere performance...
+ &cmp ($inp,&DWP(-4,$dat));
+ &lea ($inp,&DWP(8,$inp));
+ &jb (&label("loop_mmx"));
+
+ if ($alt) {
+ &movd ($out,"mm7");
+ &pxor ("mm2","mm0");
+ &psllq ("mm1",8);
+ &pxor ("mm1","mm2");
+ &movq (&QWP(-8,$out,$inp),"mm1");
+ } else {
+ &psllq ("mm1",56);
+ &pxor ("mm2","mm1");
+ &movq (&QWP(-8,$out,$inp),"mm2");
+ }
+ &emms ();
+
+ &cmp ($inp,&wparam(1)); # compare to input+len
+ &je (&label("done"));
+ &jmp (&label("loop1"));
+
+&set_label("go4loop4",16);
&lea ($ty,&DWP(-4,$inp,$ty));
&mov (&wparam(2),$ty); # save input+(len/4)*4-4
- &mov (&wparam(3),$out); # $out as accumulator in this loop
- &set_label("loop4",16);
+ &set_label("loop4");
for ($i=0;$i<4;$i++) { RC4_loop($i); }
&ror ($out,8);
&xor ($out,&DWP(0,$inp));
&set_label("done");
&dec (&LB($xx));
- &mov (&BP(-4,$dat),&LB($yy)); # save key->y
+ &mov (&DWP(-4,$dat),$yy); # save key->y
&mov (&BP(-8,$dat),&LB($xx)); # save key->x
&set_label("abort");
&function_end("RC4");
$ido="ecx";
$idx="edx";
-&external_label("OPENSSL_ia32cap_P");
-
-# void private_RC4_set_key(RC4_KEY *key,int len,const unsigned char *data);
-&function_begin("private_RC4_set_key");
+# void RC4_set_key(RC4_KEY *key,int len,const unsigned char *data);
+&function_begin("RC4_set_key");
&mov ($out,&wparam(0)); # load key
&mov ($idi,&wparam(1)); # load len
&mov ($inp,&wparam(2)); # load data
&xor ("eax","eax");
&mov (&DWP(-8,$out),"eax"); # key->x=0;
&mov (&DWP(-4,$out),"eax"); # key->y=0;
-&function_end("private_RC4_set_key");
+&function_end("RC4_set_key");
# const char *RC4_options(void);
&function_begin_B("RC4_options");
&blindpop("eax");
&lea ("eax",&DWP(&label("opts")."-".&label("pic_point"),"eax"));
&picmeup("edx","OPENSSL_ia32cap_P");
- &bt (&DWP(0,"edx"),20);
- &jnc (&label("skip"));
- &add ("eax",12);
- &set_label("skip");
+ &mov ("edx",&DWP(0,"edx"));
+ &bt ("edx",20);
+ &jc (&label("1xchar"));
+ &bt ("edx",26);
+ &jnc (&label("ret"));
+ &add ("eax",25);
+ &ret ();
+&set_label("1xchar");
+ &add ("eax",12);
+&set_label("ret");
&ret ();
&set_label("opts",64);
&asciz ("rc4(4x,int)");
&asciz ("rc4(1x,char)");
+&asciz ("rc4(8x,mmx)");
&asciz ("RC4 for x86, CRYPTOGAMS by <appro\@openssl.org>");
&align (64);
&function_end_B("RC4_options");
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
#
+# July 2004
+#
# 2.22x RC4 tune-up:-) It should be noted though that my hand [as in
# "hand-coded assembler"] doesn't stand for the whole improvement
# coefficient. It turned out that eliminating RC4_CHAR from config
# to operate on partial registers, it turned out to be the best bet.
# At least for AMD... How IA32E would perform remains to be seen...
+# November 2004
+#
# As was shown by Marc Bevand reordering of couple of load operations
# results in even higher performance gain of 3.3x:-) At least on
# Opteron... For reference, 1x in this case is RC4_CHAR C-code
# Latter means that if you want to *estimate* what to expect from
# *your* Opteron, then multiply 54 by 3.3 and clock frequency in GHz.
+# November 2004
+#
# Intel P4 EM64T core was found to run the AMD64 code really slow...
# The only way to achieve comparable performance on P4 was to keep
# RC4_CHAR. Kind of ironic, huh? As it's apparently impossible to
# on either AMD and Intel platforms, I implement both cases. See
# rc4_skey.c for further details...
+# April 2005
+#
# P4 EM64T core appears to be "allergic" to 64-bit inc/dec. Replacing
# those with add/sub results in 50% performance improvement of folded
# loop...
+# May 2005
+#
# As was shown by Zou Nanhai loop unrolling can improve Intel EM64T
# performance by >30% [unlike P4 32-bit case that is]. But this is
# provided that loads are reordered even more aggressively! Both code
# is not implemented, then this final RC4_CHAR code-path should be
# preferred, as it provides better *all-round* performance].
+# March 2007
+#
# Intel Core2 was observed to perform poorly on both code paths:-( It
# apparently suffers from some kind of partial register stall, which
# occurs in 64-bit mode only [as virtually identical 32-bit loop was
# fit for Core2 and therefore the code was modified to skip cloop8 on
# this CPU.
+# May 2010
+#
+# Intel Westmere was observed to perform suboptimally. Adding yet
+# another movzb to cloop1 improved performance by almost 50%! Core2
+# performance is improved too, but nominally...
+
+# May 2011
+#
+# The only code path that was not modified is P4-specific one. Non-P4
+# Intel code path optimization is heavily based on submission by Maxim
+# Perminov, Maxim Locktyukhin and Jim Guilford of Intel. I've used
+# some of the ideas even in attempt to optmize the original RC4_INT
+# code path... Current performance in cycles per processed byte (less
+# is better) and improvement coefficients relative to previous
+# version of this module are:
+#
+# Opteron 5.3/+0%(*)
+# P4 6.5
+# Core2 6.2/+15%(**)
+# Westmere 4.2/+60%
+# Sandy Bridge 4.2/+120%
+# Atom 9.3/+80%
+#
+# (*) But corresponding loop has less instructions, which should have
+# positive effect on upcoming Bulldozer, which has one less ALU.
+# For reference, Intel code runs at 6.8 cpb rate on Opteron.
+# (**) Note that Core2 result is ~15% lower than corresponding result
+# for 32-bit code, meaning that it's possible to improve it,
+# but more than likely at the cost of the others (see rc4-586.pl
+# to get the idea)...
+
$flavour = shift;
$output = shift;
if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
$inp="%rdx"; # arg3
$out="%rcx"; # arg4
-@XX=("%r8","%r10");
-@TX=("%r9","%r11");
-$YY="%r12";
-$TY="%r13";
-
+{
$code=<<___;
.text
+.extern OPENSSL_ia32cap_P
.globl RC4
.type RC4,\@function,4
push %r12
push %r13
.Lprologue:
+ mov $len,%r11
+ mov $inp,%r12
+ mov $out,%r13
+___
+my $len="%r11"; # reassign input arguments
+my $inp="%r12";
+my $out="%r13";
- add \$8,$dat
- movl -8($dat),$XX[0]#d
- movl -4($dat),$YY#d
+my @XX=("%r10","%rsi");
+my @TX=("%rax","%rbx");
+my $YY="%rcx";
+my $TY="%rdx";
+
+$code.=<<___;
+ xor $XX[0],$XX[0]
+ xor $YY,$YY
+
+ lea 8($dat),$dat
+ mov -8($dat),$XX[0]#b
+ mov -4($dat),$YY#b
cmpl \$-1,256($dat)
je .LRC4_CHAR
+ mov OPENSSL_ia32cap_P(%rip),%r8d
+ xor $TX[1],$TX[1]
inc $XX[0]#b
+ sub $XX[0],$TX[1]
+ sub $inp,$out
movl ($dat,$XX[0],4),$TX[0]#d
- test \$-8,$len
+ test \$-16,$len
jz .Lloop1
- jmp .Lloop8
+ bt \$30,%r8d # Intel CPU?
+ jc .Lintel
+ and \$7,$TX[1]
+ lea 1($XX[0]),$XX[1]
+ jz .Loop8
+ sub $TX[1],$len
+.Loop8_warmup:
+ add $TX[0]#b,$YY#b
+ movl ($dat,$YY,4),$TY#d
+ movl $TX[0]#d,($dat,$YY,4)
+ movl $TY#d,($dat,$XX[0],4)
+ add $TY#b,$TX[0]#b
+ inc $XX[0]#b
+ movl ($dat,$TX[0],4),$TY#d
+ movl ($dat,$XX[0],4),$TX[0]#d
+ xorb ($inp),$TY#b
+ movb $TY#b,($out,$inp)
+ lea 1($inp),$inp
+ dec $TX[1]
+ jnz .Loop8_warmup
+
+ lea 1($XX[0]),$XX[1]
+ jmp .Loop8
.align 16
-.Lloop8:
+.Loop8:
___
for ($i=0;$i<8;$i++) {
+$code.=<<___ if ($i==7);
+ add \$8,$XX[1]#b
+___
$code.=<<___;
add $TX[0]#b,$YY#b
- mov $XX[0],$XX[1]
movl ($dat,$YY,4),$TY#d
- ror \$8,%rax # ror is redundant when $i=0
- inc $XX[1]#b
- movl ($dat,$XX[1],4),$TX[1]#d
- cmp $XX[1],$YY
movl $TX[0]#d,($dat,$YY,4)
- cmove $TX[0],$TX[1]
- movl $TY#d,($dat,$XX[0],4)
+ movl `4*($i==7?-1:$i)`($dat,$XX[1],4),$TX[1]#d
+ ror \$8,%r8 # ror is redundant when $i=0
+ movl $TY#d,4*$i($dat,$XX[0],4)
add $TX[0]#b,$TY#b
- movb ($dat,$TY,4),%al
+ movb ($dat,$TY,4),%r8b
___
-push(@TX,shift(@TX)); push(@XX,shift(@XX)); # "rotate" registers
+push(@TX,shift(@TX)); #push(@XX,shift(@XX)); # "rotate" registers
}
$code.=<<___;
- ror \$8,%rax
+ add \$8,$XX[0]#b
+ ror \$8,%r8
sub \$8,$len
- xor ($inp),%rax
- add \$8,$inp
- mov %rax,($out)
- add \$8,$out
+ xor ($inp),%r8
+ mov %r8,($out,$inp)
+ lea 8($inp),$inp
test \$-8,$len
- jnz .Lloop8
+ jnz .Loop8
+ cmp \$0,$len
+ jne .Lloop1
+ jmp .Lexit
+
+.align 16
+.Lintel:
+ test \$-32,$len
+ jz .Lloop1
+ and \$15,$TX[1]
+ jz .Loop16_is_hot
+ sub $TX[1],$len
+.Loop16_warmup:
+ add $TX[0]#b,$YY#b
+ movl ($dat,$YY,4),$TY#d
+ movl $TX[0]#d,($dat,$YY,4)
+ movl $TY#d,($dat,$XX[0],4)
+ add $TY#b,$TX[0]#b
+ inc $XX[0]#b
+ movl ($dat,$TX[0],4),$TY#d
+ movl ($dat,$XX[0],4),$TX[0]#d
+ xorb ($inp),$TY#b
+ movb $TY#b,($out,$inp)
+ lea 1($inp),$inp
+ dec $TX[1]
+ jnz .Loop16_warmup
+
+ mov $YY,$TX[1]
+ xor $YY,$YY
+ mov $TX[1]#b,$YY#b
+
+.Loop16_is_hot:
+ lea ($dat,$XX[0],4),$XX[1]
+___
+sub RC4_loop {
+ my $i=shift;
+ my $j=$i<0?0:$i;
+ my $xmm="%xmm".($j&1);
+
+ $code.=" add \$16,$XX[0]#b\n" if ($i==15);
+ $code.=" movdqu ($inp),%xmm2\n" if ($i==15);
+ $code.=" add $TX[0]#b,$YY#b\n" if ($i<=0);
+ $code.=" movl ($dat,$YY,4),$TY#d\n";
+ $code.=" pxor %xmm0,%xmm2\n" if ($i==0);
+ $code.=" psllq \$8,%xmm1\n" if ($i==0);
+ $code.=" pxor $xmm,$xmm\n" if ($i<=1);
+ $code.=" movl $TX[0]#d,($dat,$YY,4)\n";
+ $code.=" add $TY#b,$TX[0]#b\n";
+ $code.=" movl `4*($j+1)`($XX[1]),$TX[1]#d\n" if ($i<15);
+ $code.=" movz $TX[0]#b,$TX[0]#d\n";
+ $code.=" movl $TY#d,4*$j($XX[1])\n";
+ $code.=" pxor %xmm1,%xmm2\n" if ($i==0);
+ $code.=" lea ($dat,$XX[0],4),$XX[1]\n" if ($i==15);
+ $code.=" add $TX[1]#b,$YY#b\n" if ($i<15);
+ $code.=" pinsrw \$`($j>>1)&7`,($dat,$TX[0],4),$xmm\n";
+ $code.=" movdqu %xmm2,($out,$inp)\n" if ($i==0);
+ $code.=" lea 16($inp),$inp\n" if ($i==0);
+ $code.=" movl ($XX[1]),$TX[1]#d\n" if ($i==15);
+}
+ RC4_loop(-1);
+$code.=<<___;
+ jmp .Loop16_enter
+.align 16
+.Loop16:
+___
+
+for ($i=0;$i<16;$i++) {
+ $code.=".Loop16_enter:\n" if ($i==1);
+ RC4_loop($i);
+ push(@TX,shift(@TX)); # "rotate" registers
+}
+$code.=<<___;
+ mov $YY,$TX[1]
+ xor $YY,$YY # keyword to partial register
+ sub \$16,$len
+ mov $TX[1]#b,$YY#b
+ test \$-16,$len
+ jnz .Loop16
+
+ psllq \$8,%xmm1
+ pxor %xmm0,%xmm2
+ pxor %xmm1,%xmm2
+ movdqu %xmm2,($out,$inp)
+ lea 16($inp),$inp
+
cmp \$0,$len
jne .Lloop1
jmp .Lexit
movl ($dat,$TX[0],4),$TY#d
movl ($dat,$XX[0],4),$TX[0]#d
xorb ($inp),$TY#b
- inc $inp
- movb $TY#b,($out)
- inc $out
+ movb $TY#b,($out,$inp)
+ lea 1($inp),$inp
dec $len
jnz .Lloop1
jmp .Lexit
movzb ($dat,$XX[0]),$TX[0]#d
test \$-8,$len
jz .Lcloop1
- cmpl \$0,260($dat)
- jnz .Lcloop1
jmp .Lcloop8
.align 16
.Lcloop8:
- mov ($inp),%eax
- mov 4($inp),%ebx
+ mov ($inp),%r8d
+ mov 4($inp),%r9d
___
# unroll 2x4-wise, because 64-bit rotates kill Intel P4...
for ($i=0;$i<4;$i++) {
mov $TX[0],$TX[1]
.Lcmov$i:
add $TX[0]#b,$TY#b
- xor ($dat,$TY),%al
- ror \$8,%eax
+ xor ($dat,$TY),%r8b
+ ror \$8,%r8d
___
push(@TX,shift(@TX)); push(@XX,shift(@XX)); # "rotate" registers
}
mov $TX[0],$TX[1]
.Lcmov$i:
add $TX[0]#b,$TY#b
- xor ($dat,$TY),%bl
- ror \$8,%ebx
+ xor ($dat,$TY),%r9b
+ ror \$8,%r9d
___
push(@TX,shift(@TX)); push(@XX,shift(@XX)); # "rotate" registers
}
$code.=<<___;
lea -8($len),$len
- mov %eax,($out)
+ mov %r8d,($out)
lea 8($inp),$inp
- mov %ebx,4($out)
+ mov %r9d,4($out)
lea 8($out),$out
test \$-8,$len
.align 16
.Lcloop1:
add $TX[0]#b,$YY#b
+ movzb $YY#b,$YY#d
movzb ($dat,$YY),$TY#d
movb $TX[0]#b,($dat,$YY)
movb $TY#b,($dat,$XX[0])
ret
.size RC4,.-RC4
___
+}
$idx="%r8";
$ido="%r9";
$code.=<<___;
-.extern OPENSSL_ia32cap_P
-.globl private_RC4_set_key
-.type private_RC4_set_key,\@function,3
+.globl RC4_set_key
+.type RC4_set_key,\@function,3
.align 16
-private_RC4_set_key:
+RC4_set_key:
lea 8($dat),$dat
lea ($inp,$len),$inp
neg $len
xor %r11,%r11
mov OPENSSL_ia32cap_P(%rip),$idx#d
- bt \$20,$idx#d
- jnc .Lw1stloop
- bt \$30,$idx#d
- setc $ido#b
- mov $ido#d,260($dat)
- jmp .Lc1stloop
+ bt \$20,$idx#d # RC4_CHAR?
+ jc .Lc1stloop
+ jmp .Lw1stloop
.align 16
.Lw1stloop:
mov %eax,-8($dat)
mov %eax,-4($dat)
ret
-.size private_RC4_set_key,.-private_RC4_set_key
+.size RC4_set_key,.-RC4_set_key
.globl RC4_options
.type RC4_options,\@abi-omnipotent
lea .Lopts(%rip),%rax
mov OPENSSL_ia32cap_P(%rip),%edx
bt \$20,%edx
- jnc .Ldone
- add \$12,%rax
+ jc .L8xchar
bt \$30,%edx
jnc .Ldone
- add \$13,%rax
+ add \$25,%rax
+ ret
+.L8xchar:
+ add \$12,%rax
.Ldone:
ret
.align 64
.Lopts:
.asciz "rc4(8x,int)"
.asciz "rc4(8x,char)"
-.asciz "rc4(1x,char)"
+.asciz "rc4(16x,int)"
.asciz "RC4 for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
.align 64
.size RC4_options,.-RC4_options
___
}
-$code =~ s/#([bwd])/$1/gm;
+sub reg_part {
+my ($reg,$conv)=@_;
+ if ($reg =~ /%r[0-9]+/) { $reg .= $conv; }
+ elsif ($conv eq "b") { $reg =~ s/%[er]([^x]+)x?/%$1l/; }
+ elsif ($conv eq "w") { $reg =~ s/%[er](.+)/%$1/; }
+ elsif ($conv eq "d") { $reg =~ s/%[er](.+)/%e$1/; }
+ return $reg;
+}
+
+$code =~ s/(%[a-z0-9]+)#([bwd])/reg_part($1,$2)/gem;
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
print $code;
# commentary below], and in 2006 the rest was rewritten in order to
# gain freedom to liberate licensing terms.
+# January, September 2004.
+#
# It was noted that Intel IA-32 C compiler generates code which
# performs ~30% *faster* on P4 CPU than original *hand-coded*
# SHA1 assembler implementation. To address this problem (and
# ----------------------------------------------------------------
# <appro@fy.chalmers.se>
+# August 2009.
+#
+# George Spelvin has tipped that F_40_59(b,c,d) can be rewritten as
+# '(c&d) + (b&(c^d))', which allows to accumulate partial results
+# and lighten "pressure" on scratch registers. This resulted in
+# >12% performance improvement on contemporary AMD cores (with no
+# degradation on other CPUs:-). Also, the code was revised to maximize
+# "distance" between instructions producing input to 'lea' instruction
+# and the 'lea' instruction itself, which is essential for Intel Atom
+# core and resulted in ~15% improvement.
+
+# October 2010.
+#
+# Add SSSE3, Supplemental[!] SSE3, implementation. The idea behind it
+# is to offload message schedule denoted by Wt in NIST specification,
+# or Xupdate in OpenSSL source, to SIMD unit. The idea is not novel,
+# and in SSE2 context was first explored by Dean Gaudet in 2004, see
+# http://arctic.org/~dean/crypto/sha1.html. Since then several things
+# have changed that made it interesting again:
+#
+# a) XMM units became faster and wider;
+# b) instruction set became more versatile;
+# c) an important observation was made by Max Locktykhin, which made
+# it possible to reduce amount of instructions required to perform
+# the operation in question, for further details see
+# http://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1/.
+
+# April 2011.
+#
+# Add AVX code path, probably most controversial... The thing is that
+# switch to AVX alone improves performance by as little as 4% in
+# comparison to SSSE3 code path. But below result doesn't look like
+# 4% improvement... Trouble is that Sandy Bridge decodes 'ro[rl]' as
+# pair of µ-ops, and it's the additional µ-ops, two per round, that
+# make it run slower than Core2 and Westmere. But 'sh[rl]d' is decoded
+# as single µ-op by Sandy Bridge and it's replacing 'ro[rl]' with
+# equivalent 'sh[rl]d' that is responsible for the impressive 5.1
+# cycles per processed byte. But 'sh[rl]d' is not something that used
+# to be fast, nor does it appear to be fast in upcoming Bulldozer
+# [according to its optimization manual]. Which is why AVX code path
+# is guarded by *both* AVX and synthetic bit denoting Intel CPUs.
+# One can argue that it's unfair to AMD, but without 'sh[rl]d' it
+# makes no sense to keep the AVX code path. If somebody feels that
+# strongly, it's probably more appropriate to discuss possibility of
+# using vector rotate XOP on AMD...
+
+######################################################################
+# Current performance is summarized in following table. Numbers are
+# CPU clock cycles spent to process single byte (less is better).
+#
+# x86 SSSE3 AVX
+# Pentium 15.7 -
+# PIII 11.5 -
+# P4 10.6 -
+# AMD K8 7.1 -
+# Core2 7.3 6.1/+20% -
+# Atom 12.5 9.5(*)/+32% -
+# Westmere 7.3 5.6/+30% -
+# Sandy Bridge 8.8 6.2/+40% 5.1(**)/+70%
+#
+# (*) Loop is 1056 instructions long and expected result is ~8.25.
+# It remains mystery [to me] why ILP is limited to 1.7.
+#
+# (**) As per above comment, the result is for AVX *plus* sh[rl]d.
+
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";
&asm_init($ARGV[0],"sha1-586.pl",$ARGV[$#ARGV] eq "386");
+$xmm=$ymm=0;
+for (@ARGV) { $xmm=1 if (/-DOPENSSL_IA32_SSE2/); }
+
+$ymm=1 if ($xmm &&
+ `$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
+ =~ /GNU assembler version ([2-9]\.[0-9]+)/ &&
+ $1>=2.19); # first version supporting AVX
+
+$ymm=1 if ($xmm && !$ymm && $ARGV[0] eq "win32n" &&
+ `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/ &&
+ $1>=2.03); # first version supporting AVX
+
+&external_label("OPENSSL_ia32cap_P") if ($xmm);
+
+
$A="eax";
$B="ebx";
$C="ecx";
@V=($A,$B,$C,$D,$E,$T);
+$alt=0; # 1 denotes alternative IALU implementation, which performs
+ # 8% *worse* on P4, same on Westmere and Atom, 2% better on
+ # Sandy Bridge...
+
sub BODY_00_15
{
local($n,$a,$b,$c,$d,$e,$f)=@_;
&rotl($tmp1,5); # tmp1=ROTATE(a,5)
&xor($f,$d);
&add($tmp1,$e); # tmp1+=e;
- &and($f,$b);
- &mov($e,&swtmp($n%16)); # e becomes volatile and is loaded
+ &mov($e,&swtmp($n%16)); # e becomes volatile and is loaded
# with xi, also note that e becomes
# f in next round...
- &xor($f,$d); # f holds F_00_19(b,c,d)
+ &and($f,$b);
&rotr($b,2); # b=ROTATE(b,30)
- &lea($tmp1,&DWP(0x5a827999,$tmp1,$e)); # tmp1+=K_00_19+xi
+ &xor($f,$d); # f holds F_00_19(b,c,d)
+ &lea($tmp1,&DWP(0x5a827999,$tmp1,$e)); # tmp1+=K_00_19+xi
- if ($n==15) { &add($f,$tmp1); } # f+=tmp1
+ if ($n==15) { &mov($e,&swtmp(($n+1)%16));# pre-fetch f for next round
+ &add($f,$tmp1); } # f+=tmp1
else { &add($tmp1,$f); } # f becomes a in next round
+ &mov($tmp1,$a) if ($alt && $n==15);
}
sub BODY_16_19
&comment("16_19 $n");
- &mov($f,&swtmp($n%16)); # f to hold Xupdate(xi,xa,xb,xc,xd)
- &mov($tmp1,$c); # tmp1 to hold F_00_19(b,c,d)
- &xor($f,&swtmp(($n+2)%16));
- &xor($tmp1,$d);
- &xor($f,&swtmp(($n+8)%16));
- &and($tmp1,$b); # tmp1 holds F_00_19(b,c,d)
- &rotr($b,2); # b=ROTATE(b,30)
+if ($alt) {
+ &xor($c,$d);
+ &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd)
+ &and($tmp1,$c); # tmp1 to hold F_00_19(b,c,d), b&=c^d
+ &xor($f,&swtmp(($n+8)%16));
+ &xor($tmp1,$d); # tmp1=F_00_19(b,c,d)
+ &xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd
+ &rotl($f,1); # f=ROTATE(f,1)
+ &add($e,$tmp1); # e+=F_00_19(b,c,d)
+ &xor($c,$d); # restore $c
+ &mov($tmp1,$a); # b in next round
+ &rotr($b,$n==16?2:7); # b=ROTATE(b,30)
+ &mov(&swtmp($n%16),$f); # xi=f
+ &rotl($a,5); # ROTATE(a,5)
+ &lea($f,&DWP(0x5a827999,$f,$e));# f+=F_00_19(b,c,d)+e
+ &mov($e,&swtmp(($n+1)%16)); # pre-fetch f for next round
+ &add($f,$a); # f+=ROTATE(a,5)
+} else {
+ &mov($tmp1,$c); # tmp1 to hold F_00_19(b,c,d)
+ &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd)
+ &xor($tmp1,$d);
+ &xor($f,&swtmp(($n+8)%16));
+ &and($tmp1,$b);
&xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd
&rotl($f,1); # f=ROTATE(f,1)
&xor($tmp1,$d); # tmp1=F_00_19(b,c,d)
- &mov(&swtmp($n%16),$f); # xi=f
- &lea($f,&DWP(0x5a827999,$f,$e));# f+=K_00_19+e
- &mov($e,$a); # e becomes volatile
- &rotl($e,5); # e=ROTATE(a,5)
- &add($f,$tmp1); # f+=F_00_19(b,c,d)
- &add($f,$e); # f+=ROTATE(a,5)
+ &add($e,$tmp1); # e+=F_00_19(b,c,d)
+ &mov($tmp1,$a);
+ &rotr($b,2); # b=ROTATE(b,30)
+ &mov(&swtmp($n%16),$f); # xi=f
+ &rotl($tmp1,5); # ROTATE(a,5)
+ &lea($f,&DWP(0x5a827999,$f,$e));# f+=F_00_19(b,c,d)+e
+ &mov($e,&swtmp(($n+1)%16)); # pre-fetch f for next round
+ &add($f,$tmp1); # f+=ROTATE(a,5)
+}
}
sub BODY_20_39
&comment("20_39 $n");
+if ($alt) {
+ &xor($tmp1,$c); # tmp1 to hold F_20_39(b,c,d), b^=c
+ &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd)
+ &xor($tmp1,$d); # tmp1 holds F_20_39(b,c,d)
+ &xor($f,&swtmp(($n+8)%16));
+ &add($e,$tmp1); # e+=F_20_39(b,c,d)
+ &xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd
+ &rotl($f,1); # f=ROTATE(f,1)
+ &mov($tmp1,$a); # b in next round
+ &rotr($b,7); # b=ROTATE(b,30)
+ &mov(&swtmp($n%16),$f) if($n<77);# xi=f
+ &rotl($a,5); # ROTATE(a,5)
+ &xor($b,$c) if($n==39);# warm up for BODY_40_59
+ &and($tmp1,$b) if($n==39);
+ &lea($f,&DWP($K,$f,$e)); # f+=e+K_XX_YY
+ &mov($e,&swtmp(($n+1)%16)) if($n<79);# pre-fetch f for next round
+ &add($f,$a); # f+=ROTATE(a,5)
+ &rotr($a,5) if ($n==79);
+} else {
&mov($tmp1,$b); # tmp1 to hold F_20_39(b,c,d)
- &mov($f,&swtmp($n%16)); # f to hold Xupdate(xi,xa,xb,xc,xd)
- &rotr($b,2); # b=ROTATE(b,30)
- &xor($f,&swtmp(($n+2)%16));
+ &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd)
&xor($tmp1,$c);
&xor($f,&swtmp(($n+8)%16));
&xor($tmp1,$d); # tmp1 holds F_20_39(b,c,d)
&xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd
&rotl($f,1); # f=ROTATE(f,1)
- &add($tmp1,$e);
- &mov(&swtmp($n%16),$f); # xi=f
- &mov($e,$a); # e becomes volatile
- &rotl($e,5); # e=ROTATE(a,5)
- &lea($f,&DWP($K,$f,$tmp1)); # f+=K_20_39+e
- &add($f,$e); # f+=ROTATE(a,5)
+ &add($e,$tmp1); # e+=F_20_39(b,c,d)
+ &rotr($b,2); # b=ROTATE(b,30)
+ &mov($tmp1,$a);
+ &rotl($tmp1,5); # ROTATE(a,5)
+ &mov(&swtmp($n%16),$f) if($n<77);# xi=f
+ &lea($f,&DWP($K,$f,$e)); # f+=e+K_XX_YY
+ &mov($e,&swtmp(($n+1)%16)) if($n<79);# pre-fetch f for next round
+ &add($f,$tmp1); # f+=ROTATE(a,5)
+}
}
sub BODY_40_59
&comment("40_59 $n");
- &mov($f,&swtmp($n%16)); # f to hold Xupdate(xi,xa,xb,xc,xd)
- &mov($tmp1,&swtmp(($n+2)%16));
- &xor($f,$tmp1);
- &mov($tmp1,&swtmp(($n+8)%16));
- &xor($f,$tmp1);
- &mov($tmp1,&swtmp(($n+13)%16));
- &xor($f,$tmp1); # f holds xa^xb^xc^xd
- &mov($tmp1,$b); # tmp1 to hold F_40_59(b,c,d)
+if ($alt) {
+ &add($e,$tmp1); # e+=b&(c^d)
+ &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd)
+ &mov($tmp1,$d);
+ &xor($f,&swtmp(($n+8)%16));
+ &xor($c,$d); # restore $c
+ &xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd
&rotl($f,1); # f=ROTATE(f,1)
- &or($tmp1,$c);
- &mov(&swtmp($n%16),$f); # xi=f
- &and($tmp1,$d);
- &lea($f,&DWP(0x8f1bbcdc,$f,$e));# f+=K_40_59+e
- &mov($e,$b); # e becomes volatile and is used
- # to calculate F_40_59(b,c,d)
+ &and($tmp1,$c);
+ &rotr($b,7); # b=ROTATE(b,30)
+ &add($e,$tmp1); # e+=c&d
+ &mov($tmp1,$a); # b in next round
+ &mov(&swtmp($n%16),$f); # xi=f
+ &rotl($a,5); # ROTATE(a,5)
+ &xor($b,$c) if ($n<59);
+ &and($tmp1,$b) if ($n<59);# tmp1 to hold F_40_59(b,c,d)
+ &lea($f,&DWP(0x8f1bbcdc,$f,$e));# f+=K_40_59+e+(b&(c^d))
+ &mov($e,&swtmp(($n+1)%16)); # pre-fetch f for next round
+ &add($f,$a); # f+=ROTATE(a,5)
+} else {
+ &mov($tmp1,$c); # tmp1 to hold F_40_59(b,c,d)
+ &xor($f,&swtmp(($n+2)%16)); # f to hold Xupdate(xi,xa,xb,xc,xd)
+ &xor($tmp1,$d);
+ &xor($f,&swtmp(($n+8)%16));
+ &and($tmp1,$b);
+ &xor($f,&swtmp(($n+13)%16)); # f holds xa^xb^xc^xd
+ &rotl($f,1); # f=ROTATE(f,1)
+ &add($tmp1,$e); # b&(c^d)+=e
&rotr($b,2); # b=ROTATE(b,30)
- &and($e,$c);
- &or($tmp1,$e); # tmp1 holds F_40_59(b,c,d)
- &mov($e,$a);
- &rotl($e,5); # e=ROTATE(a,5)
- &add($f,$tmp1); # f+=tmp1;
+ &mov($e,$a); # e becomes volatile
+ &rotl($e,5); # ROTATE(a,5)
+ &mov(&swtmp($n%16),$f); # xi=f
+ &lea($f,&DWP(0x8f1bbcdc,$f,$tmp1));# f+=K_40_59+e+(b&(c^d))
+ &mov($tmp1,$c);
&add($f,$e); # f+=ROTATE(a,5)
+ &and($tmp1,$d);
+ &mov($e,&swtmp(($n+1)%16)); # pre-fetch f for next round
+ &add($f,$tmp1); # f+=c&d
+}
}
&function_begin("sha1_block_data_order");
+if ($xmm) {
+ &static_label("ssse3_shortcut");
+ &static_label("avx_shortcut") if ($ymm);
+ &static_label("K_XX_XX");
+
+ &call (&label("pic_point")); # make it PIC!
+ &set_label("pic_point");
+ &blindpop($tmp1);
+ &picmeup($T,"OPENSSL_ia32cap_P",$tmp1,&label("pic_point"));
+ &lea ($tmp1,&DWP(&label("K_XX_XX")."-".&label("pic_point"),$tmp1));
+
+ &mov ($A,&DWP(0,$T));
+ &mov ($D,&DWP(4,$T));
+ &test ($D,1<<9); # check SSSE3 bit
+ &jz (&label("x86"));
+ &test ($A,1<<24); # check FXSR bit
+ &jz (&label("x86"));
+ if ($ymm) {
+ &and ($D,1<<28); # mask AVX bit
+ &and ($A,1<<30); # mask "Intel CPU" bit
+ &or ($A,$D);
+ &cmp ($A,1<<28|1<<30);
+ &je (&label("avx_shortcut"));
+ }
+ &jmp (&label("ssse3_shortcut"));
+ &set_label("x86",16);
+}
&mov($tmp1,&wparam(0)); # SHA_CTX *c
&mov($T,&wparam(1)); # const void *input
&mov($A,&wparam(2)); # size_t num
- &stack_push(16); # allocate X[16]
+ &stack_push(16+3); # allocate X[16]
&shl($A,6);
&add($A,$T);
&mov(&wparam(2),$A); # pointer beyond the end of input
&mov($E,&DWP(16,$tmp1));# pre-load E
+ &jmp(&label("loop"));
- &set_label("loop",16);
+&set_label("loop",16);
# copy input chunk to X, but reversing byte order!
for ($i=0; $i<16; $i+=4)
&mov(&DWP(16,$tmp1),$C);
&jb(&label("loop"));
- &stack_pop(16);
+ &stack_pop(16+3);
&function_end("sha1_block_data_order");
+
+if ($xmm) {
+######################################################################
+# The SSSE3 implementation.
+#
+# %xmm[0-7] are used as ring @X[] buffer containing quadruples of last
+# 32 elements of the message schedule or Xupdate outputs. First 4
+# quadruples are simply byte-swapped input, next 4 are calculated
+# according to method originally suggested by Dean Gaudet (modulo
+# being implemented in SSSE3). Once 8 quadruples or 32 elements are
+# collected, it switches to routine proposed by Max Locktyukhin.
+#
+# Calculations inevitably require temporary reqisters, and there are
+# no %xmm registers left to spare. For this reason part of the ring
+# buffer, X[2..4] to be specific, is offloaded to 3 quadriples ring
+# buffer on the stack. Keep in mind that X[2] is alias X[-6], X[3] -
+# X[-5], and X[4] - X[-4]...
+#
+# Another notable optimization is aggressive stack frame compression
+# aiming to minimize amount of 9-byte instructions...
+#
+# Yet another notable optimization is "jumping" $B variable. It means
+# that there is no register permanently allocated for $B value. This
+# allowed to eliminate one instruction from body_20_39...
+#
+my $Xi=4; # 4xSIMD Xupdate round, start pre-seeded
+my @X=map("xmm$_",(4..7,0..3)); # pre-seeded for $Xi=4
+my @V=($A,$B,$C,$D,$E);
+my $j=0; # hash round
+my @T=($T,$tmp1);
+my $inp;
+
+my $_rol=sub { &rol(@_) };
+my $_ror=sub { &ror(@_) };
+
+&function_begin("_sha1_block_data_order_ssse3");
+ &call (&label("pic_point")); # make it PIC!
+ &set_label("pic_point");
+ &blindpop($tmp1);
+ &lea ($tmp1,&DWP(&label("K_XX_XX")."-".&label("pic_point"),$tmp1));
+&set_label("ssse3_shortcut");
+
+ &movdqa (@X[3],&QWP(0,$tmp1)); # K_00_19
+ &movdqa (@X[4],&QWP(16,$tmp1)); # K_20_39
+ &movdqa (@X[5],&QWP(32,$tmp1)); # K_40_59
+ &movdqa (@X[6],&QWP(48,$tmp1)); # K_60_79
+ &movdqa (@X[2],&QWP(64,$tmp1)); # pbswap mask
+
+ &mov ($E,&wparam(0)); # load argument block
+ &mov ($inp=@T[1],&wparam(1));
+ &mov ($D,&wparam(2));
+ &mov (@T[0],"esp");
+
+ # stack frame layout
+ #
+ # +0 X[0]+K X[1]+K X[2]+K X[3]+K # XMM->IALU xfer area
+ # X[4]+K X[5]+K X[6]+K X[7]+K
+ # X[8]+K X[9]+K X[10]+K X[11]+K
+ # X[12]+K X[13]+K X[14]+K X[15]+K
+ #
+ # +64 X[0] X[1] X[2] X[3] # XMM->XMM backtrace area
+ # X[4] X[5] X[6] X[7]
+ # X[8] X[9] X[10] X[11] # even borrowed for K_00_19
+ #
+ # +112 K_20_39 K_20_39 K_20_39 K_20_39 # constants
+ # K_40_59 K_40_59 K_40_59 K_40_59
+ # K_60_79 K_60_79 K_60_79 K_60_79
+ # K_00_19 K_00_19 K_00_19 K_00_19
+ # pbswap mask
+ #
+ # +192 ctx # argument block
+ # +196 inp
+ # +200 end
+ # +204 esp
+ &sub ("esp",208);
+ &and ("esp",-64);
+
+ &movdqa (&QWP(112+0,"esp"),@X[4]); # copy constants
+ &movdqa (&QWP(112+16,"esp"),@X[5]);
+ &movdqa (&QWP(112+32,"esp"),@X[6]);
+ &shl ($D,6); # len*64
+ &movdqa (&QWP(112+48,"esp"),@X[3]);
+ &add ($D,$inp); # end of input
+ &movdqa (&QWP(112+64,"esp"),@X[2]);
+ &add ($inp,64);
+ &mov (&DWP(192+0,"esp"),$E); # save argument block
+ &mov (&DWP(192+4,"esp"),$inp);
+ &mov (&DWP(192+8,"esp"),$D);
+ &mov (&DWP(192+12,"esp"),@T[0]); # save original %esp
+
+ &mov ($A,&DWP(0,$E)); # load context
+ &mov ($B,&DWP(4,$E));
+ &mov ($C,&DWP(8,$E));
+ &mov ($D,&DWP(12,$E));
+ &mov ($E,&DWP(16,$E));
+ &mov (@T[0],$B); # magic seed
+
+ &movdqu (@X[-4&7],&QWP(-64,$inp)); # load input to %xmm[0-3]
+ &movdqu (@X[-3&7],&QWP(-48,$inp));
+ &movdqu (@X[-2&7],&QWP(-32,$inp));
+ &movdqu (@X[-1&7],&QWP(-16,$inp));
+ &pshufb (@X[-4&7],@X[2]); # byte swap
+ &pshufb (@X[-3&7],@X[2]);
+ &pshufb (@X[-2&7],@X[2]);
+ &movdqa (&QWP(112-16,"esp"),@X[3]); # borrow last backtrace slot
+ &pshufb (@X[-1&7],@X[2]);
+ &paddd (@X[-4&7],@X[3]); # add K_00_19
+ &paddd (@X[-3&7],@X[3]);
+ &paddd (@X[-2&7],@X[3]);
+ &movdqa (&QWP(0,"esp"),@X[-4&7]); # X[]+K xfer to IALU
+ &psubd (@X[-4&7],@X[3]); # restore X[]
+ &movdqa (&QWP(0+16,"esp"),@X[-3&7]);
+ &psubd (@X[-3&7],@X[3]);
+ &movdqa (&QWP(0+32,"esp"),@X[-2&7]);
+ &psubd (@X[-2&7],@X[3]);
+ &movdqa (@X[0],@X[-3&7]);
+ &jmp (&label("loop"));
+
+######################################################################
+# SSE instruction sequence is first broken to groups of indepentent
+# instructions, independent in respect to their inputs and shifter
+# (not all architectures have more than one). Then IALU instructions
+# are "knitted in" between the SSE groups. Distance is maintained for
+# SSE latency of 2 in hope that it fits better upcoming AMD Bulldozer
+# [which allegedly also implements SSSE3]...
+#
+# Temporary registers usage. X[2] is volatile at the entry and at the
+# end is restored from backtrace ring buffer. X[3] is expected to
+# contain current K_XX_XX constant and is used to caclulate X[-1]+K
+# from previous round, it becomes volatile the moment the value is
+# saved to stack for transfer to IALU. X[4] becomes volatile whenever
+# X[-4] is accumulated and offloaded to backtrace ring buffer, at the
+# end it is loaded with next K_XX_XX [which becomes X[3] in next
+# round]...
+#
+sub Xupdate_ssse3_16_31() # recall that $Xi starts wtih 4
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 40 instructions
+ my ($a,$b,$c,$d,$e);
+
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &palignr(@X[0],@X[-4&7],8); # compose "X[-14]" in "X[0]"
+ &movdqa (@X[2],@X[-1&7]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &paddd (@X[3],@X[-1&7]);
+ &movdqa (&QWP(64+16*(($Xi-4)%3),"esp"),@X[-4&7]);# save X[] to backtrace buffer
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &psrldq (@X[2],4); # "X[-3]", 3 dwords
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &pxor (@X[0],@X[-4&7]); # "X[0]"^="X[-16]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &pxor (@X[2],@X[-2&7]); # "X[-3]"^"X[-8]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &pxor (@X[0],@X[2]); # "X[0]"^="X[-3]"^"X[-8]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &movdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &movdqa (@X[4],@X[0]);
+ &movdqa (@X[2],@X[0]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &pslldq (@X[4],12); # "X[0]"<<96, extract one dword
+ &paddd (@X[0],@X[0]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &psrld (@X[2],31);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &movdqa (@X[3],@X[4]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &psrld (@X[4],30);
+ &por (@X[0],@X[2]); # "X[0]"<<<=1
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &movdqa (@X[2],&QWP(64+16*(($Xi-6)%3),"esp")) if ($Xi>5); # restore X[] from backtrace buffer
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &pslld (@X[3],2);
+ &pxor (@X[0],@X[4]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &movdqa (@X[4],&QWP(112-16+16*(($Xi)/5),"esp")); # K_XX_XX
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &pxor (@X[0],@X[3]); # "X[0]"^=("X[0]"<<96)<<<2
+ &movdqa (@X[1],@X[-2&7]) if ($Xi<7);
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ foreach (@insns) { eval; } # remaining instructions [if any]
+
+ $Xi++; push(@X,shift(@X)); # "rotate" X[]
+}
+
+sub Xupdate_ssse3_32_79()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 to 48 instructions
+ my ($a,$b,$c,$d,$e);
+
+ &movdqa (@X[2],@X[-1&7]) if ($Xi==8);
+ eval(shift(@insns)); # body_20_39
+ &pxor (@X[0],@X[-4&7]); # "X[0]"="X[-32]"^"X[-16]"
+ &palignr(@X[2],@X[-2&7],8); # compose "X[-6]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+
+ &pxor (@X[0],@X[-7&7]); # "X[0]"^="X[-28]"
+ &movdqa (&QWP(64+16*(($Xi-4)%3),"esp"),@X[-4&7]); # save X[] to backtrace buffer
+ eval(shift(@insns));
+ eval(shift(@insns));
+ if ($Xi%5) {
+ &movdqa (@X[4],@X[3]); # "perpetuate" K_XX_XX...
+ } else { # ... or load next one
+ &movdqa (@X[4],&QWP(112-16+16*($Xi/5),"esp"));
+ }
+ &paddd (@X[3],@X[-1&7]);
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &pxor (@X[0],@X[2]); # "X[0]"^="X[-6]"
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+
+ &movdqa (@X[2],@X[0]);
+ &movdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &pslld (@X[0],2);
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ &psrld (@X[2],30);
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &por (@X[0],@X[2]); # "X[0]"<<<=2
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ &movdqa (@X[2],&QWP(64+16*(($Xi-6)%3),"esp")) if($Xi<19); # restore X[] from backtrace buffer
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # ror
+ &movdqa (@X[3],@X[0]) if ($Xi<19);
+ eval(shift(@insns));
+
+ foreach (@insns) { eval; } # remaining instructions
+
+ $Xi++; push(@X,shift(@X)); # "rotate" X[]
+}
+
+sub Xuplast_ssse3_80()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ eval(shift(@insns));
+ &paddd (@X[3],@X[-1&7]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &movdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer IALU
+
+ foreach (@insns) { eval; } # remaining instructions
+
+ &mov ($inp=@T[1],&DWP(192+4,"esp"));
+ &cmp ($inp,&DWP(192+8,"esp"));
+ &je (&label("done"));
+
+ &movdqa (@X[3],&QWP(112+48,"esp")); # K_00_19
+ &movdqa (@X[2],&QWP(112+64,"esp")); # pbswap mask
+ &movdqu (@X[-4&7],&QWP(0,$inp)); # load input
+ &movdqu (@X[-3&7],&QWP(16,$inp));
+ &movdqu (@X[-2&7],&QWP(32,$inp));
+ &movdqu (@X[-1&7],&QWP(48,$inp));
+ &add ($inp,64);
+ &pshufb (@X[-4&7],@X[2]); # byte swap
+ &mov (&DWP(192+4,"esp"),$inp);
+ &movdqa (&QWP(112-16,"esp"),@X[3]); # borrow last backtrace slot
+
+ $Xi=0;
+}
+
+sub Xloop_ssse3()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &pshufb (@X[($Xi-3)&7],@X[2]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &paddd (@X[($Xi-4)&7],@X[3]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &movdqa (&QWP(0+16*$Xi,"esp"),@X[($Xi-4)&7]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &psubd (@X[($Xi-4)&7],@X[3]);
+
+ foreach (@insns) { eval; }
+ $Xi++;
+}
+
+sub Xtail_ssse3()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ foreach (@insns) { eval; }
+}
+
+sub body_00_19 () {
+ (
+ '($a,$b,$c,$d,$e)=@V;'.
+ '&add ($e,&DWP(4*($j&15),"esp"));', # X[]+K xfer
+ '&xor ($c,$d);',
+ '&mov (@T[1],$a);', # $b in next round
+ '&$_rol ($a,5);',
+ '&and (@T[0],$c);', # ($b&($c^$d))
+ '&xor ($c,$d);', # restore $c
+ '&xor (@T[0],$d);',
+ '&add ($e,$a);',
+ '&$_ror ($b,$j?7:2);', # $b>>>2
+ '&add ($e,@T[0]);' .'$j++; unshift(@V,pop(@V)); unshift(@T,pop(@T));'
+ );
+}
+
+sub body_20_39 () {
+ (
+ '($a,$b,$c,$d,$e)=@V;'.
+ '&add ($e,&DWP(4*($j++&15),"esp"));', # X[]+K xfer
+ '&xor (@T[0],$d);', # ($b^$d)
+ '&mov (@T[1],$a);', # $b in next round
+ '&$_rol ($a,5);',
+ '&xor (@T[0],$c);', # ($b^$d^$c)
+ '&add ($e,$a);',
+ '&$_ror ($b,7);', # $b>>>2
+ '&add ($e,@T[0]);' .'unshift(@V,pop(@V)); unshift(@T,pop(@T));'
+ );
+}
+
+sub body_40_59 () {
+ (
+ '($a,$b,$c,$d,$e)=@V;'.
+ '&mov (@T[1],$c);',
+ '&xor ($c,$d);',
+ '&add ($e,&DWP(4*($j++&15),"esp"));', # X[]+K xfer
+ '&and (@T[1],$d);',
+ '&and (@T[0],$c);', # ($b&($c^$d))
+ '&$_ror ($b,7);', # $b>>>2
+ '&add ($e,@T[1]);',
+ '&mov (@T[1],$a);', # $b in next round
+ '&$_rol ($a,5);',
+ '&add ($e,@T[0]);',
+ '&xor ($c,$d);', # restore $c
+ '&add ($e,$a);' .'unshift(@V,pop(@V)); unshift(@T,pop(@T));'
+ );
+}
+
+&set_label("loop",16);
+ &Xupdate_ssse3_16_31(\&body_00_19);
+ &Xupdate_ssse3_16_31(\&body_00_19);
+ &Xupdate_ssse3_16_31(\&body_00_19);
+ &Xupdate_ssse3_16_31(\&body_00_19);
+ &Xupdate_ssse3_32_79(\&body_00_19);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xupdate_ssse3_32_79(\&body_40_59);
+ &Xupdate_ssse3_32_79(\&body_40_59);
+ &Xupdate_ssse3_32_79(\&body_40_59);
+ &Xupdate_ssse3_32_79(\&body_40_59);
+ &Xupdate_ssse3_32_79(\&body_40_59);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xuplast_ssse3_80(\&body_20_39); # can jump to "done"
+
+ $saved_j=$j; @saved_V=@V;
+
+ &Xloop_ssse3(\&body_20_39);
+ &Xloop_ssse3(\&body_20_39);
+ &Xloop_ssse3(\&body_20_39);
+
+ &mov (@T[1],&DWP(192,"esp")); # update context
+ &add ($A,&DWP(0,@T[1]));
+ &add (@T[0],&DWP(4,@T[1])); # $b
+ &add ($C,&DWP(8,@T[1]));
+ &mov (&DWP(0,@T[1]),$A);
+ &add ($D,&DWP(12,@T[1]));
+ &mov (&DWP(4,@T[1]),@T[0]);
+ &add ($E,&DWP(16,@T[1]));
+ &mov (&DWP(8,@T[1]),$C);
+ &mov ($B,@T[0]);
+ &mov (&DWP(12,@T[1]),$D);
+ &mov (&DWP(16,@T[1]),$E);
+ &movdqa (@X[0],@X[-3&7]);
+
+ &jmp (&label("loop"));
+
+&set_label("done",16); $j=$saved_j; @V=@saved_V;
+
+ &Xtail_ssse3(\&body_20_39);
+ &Xtail_ssse3(\&body_20_39);
+ &Xtail_ssse3(\&body_20_39);
+
+ &mov (@T[1],&DWP(192,"esp")); # update context
+ &add ($A,&DWP(0,@T[1]));
+ &mov ("esp",&DWP(192+12,"esp")); # restore %esp
+ &add (@T[0],&DWP(4,@T[1])); # $b
+ &add ($C,&DWP(8,@T[1]));
+ &mov (&DWP(0,@T[1]),$A);
+ &add ($D,&DWP(12,@T[1]));
+ &mov (&DWP(4,@T[1]),@T[0]);
+ &add ($E,&DWP(16,@T[1]));
+ &mov (&DWP(8,@T[1]),$C);
+ &mov (&DWP(12,@T[1]),$D);
+ &mov (&DWP(16,@T[1]),$E);
+
+&function_end("_sha1_block_data_order_ssse3");
+
+if ($ymm) {
+my $Xi=4; # 4xSIMD Xupdate round, start pre-seeded
+my @X=map("xmm$_",(4..7,0..3)); # pre-seeded for $Xi=4
+my @V=($A,$B,$C,$D,$E);
+my $j=0; # hash round
+my @T=($T,$tmp1);
+my $inp;
+
+my $_rol=sub { &shld(@_[0],@_) };
+my $_ror=sub { &shrd(@_[0],@_) };
+
+&function_begin("_sha1_block_data_order_avx");
+ &call (&label("pic_point")); # make it PIC!
+ &set_label("pic_point");
+ &blindpop($tmp1);
+ &lea ($tmp1,&DWP(&label("K_XX_XX")."-".&label("pic_point"),$tmp1));
+&set_label("avx_shortcut");
+ &vzeroall();
+
+ &vmovdqa(@X[3],&QWP(0,$tmp1)); # K_00_19
+ &vmovdqa(@X[4],&QWP(16,$tmp1)); # K_20_39
+ &vmovdqa(@X[5],&QWP(32,$tmp1)); # K_40_59
+ &vmovdqa(@X[6],&QWP(48,$tmp1)); # K_60_79
+ &vmovdqa(@X[2],&QWP(64,$tmp1)); # pbswap mask
+
+ &mov ($E,&wparam(0)); # load argument block
+ &mov ($inp=@T[1],&wparam(1));
+ &mov ($D,&wparam(2));
+ &mov (@T[0],"esp");
+
+ # stack frame layout
+ #
+ # +0 X[0]+K X[1]+K X[2]+K X[3]+K # XMM->IALU xfer area
+ # X[4]+K X[5]+K X[6]+K X[7]+K
+ # X[8]+K X[9]+K X[10]+K X[11]+K
+ # X[12]+K X[13]+K X[14]+K X[15]+K
+ #
+ # +64 X[0] X[1] X[2] X[3] # XMM->XMM backtrace area
+ # X[4] X[5] X[6] X[7]
+ # X[8] X[9] X[10] X[11] # even borrowed for K_00_19
+ #
+ # +112 K_20_39 K_20_39 K_20_39 K_20_39 # constants
+ # K_40_59 K_40_59 K_40_59 K_40_59
+ # K_60_79 K_60_79 K_60_79 K_60_79
+ # K_00_19 K_00_19 K_00_19 K_00_19
+ # pbswap mask
+ #
+ # +192 ctx # argument block
+ # +196 inp
+ # +200 end
+ # +204 esp
+ &sub ("esp",208);
+ &and ("esp",-64);
+
+ &vmovdqa(&QWP(112+0,"esp"),@X[4]); # copy constants
+ &vmovdqa(&QWP(112+16,"esp"),@X[5]);
+ &vmovdqa(&QWP(112+32,"esp"),@X[6]);
+ &shl ($D,6); # len*64
+ &vmovdqa(&QWP(112+48,"esp"),@X[3]);
+ &add ($D,$inp); # end of input
+ &vmovdqa(&QWP(112+64,"esp"),@X[2]);
+ &add ($inp,64);
+ &mov (&DWP(192+0,"esp"),$E); # save argument block
+ &mov (&DWP(192+4,"esp"),$inp);
+ &mov (&DWP(192+8,"esp"),$D);
+ &mov (&DWP(192+12,"esp"),@T[0]); # save original %esp
+
+ &mov ($A,&DWP(0,$E)); # load context
+ &mov ($B,&DWP(4,$E));
+ &mov ($C,&DWP(8,$E));
+ &mov ($D,&DWP(12,$E));
+ &mov ($E,&DWP(16,$E));
+ &mov (@T[0],$B); # magic seed
+
+ &vmovdqu(@X[-4&7],&QWP(-64,$inp)); # load input to %xmm[0-3]
+ &vmovdqu(@X[-3&7],&QWP(-48,$inp));
+ &vmovdqu(@X[-2&7],&QWP(-32,$inp));
+ &vmovdqu(@X[-1&7],&QWP(-16,$inp));
+ &vpshufb(@X[-4&7],@X[-4&7],@X[2]); # byte swap
+ &vpshufb(@X[-3&7],@X[-3&7],@X[2]);
+ &vpshufb(@X[-2&7],@X[-2&7],@X[2]);
+ &vmovdqa(&QWP(112-16,"esp"),@X[3]); # borrow last backtrace slot
+ &vpshufb(@X[-1&7],@X[-1&7],@X[2]);
+ &vpaddd (@X[0],@X[-4&7],@X[3]); # add K_00_19
+ &vpaddd (@X[1],@X[-3&7],@X[3]);
+ &vpaddd (@X[2],@X[-2&7],@X[3]);
+ &vmovdqa(&QWP(0,"esp"),@X[0]); # X[]+K xfer to IALU
+ &vmovdqa(&QWP(0+16,"esp"),@X[1]);
+ &vmovdqa(&QWP(0+32,"esp"),@X[2]);
+ &jmp (&label("loop"));
+
+sub Xupdate_avx_16_31() # recall that $Xi starts wtih 4
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 40 instructions
+ my ($a,$b,$c,$d,$e);
+
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vpalignr(@X[0],@X[-3&7],@X[-4&7],8); # compose "X[-14]" in "X[0]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpaddd (@X[3],@X[3],@X[-1&7]);
+ &vmovdqa (&QWP(64+16*(($Xi-4)%3),"esp"),@X[-4&7]);# save X[] to backtrace buffer
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vpsrldq(@X[2],@X[-1&7],4); # "X[-3]", 3 dwords
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vpxor (@X[0],@X[0],@X[-4&7]); # "X[0]"^="X[-16]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpxor (@X[2],@X[2],@X[-2&7]); # "X[-3]"^"X[-8]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vmovdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpxor (@X[0],@X[0],@X[2]); # "X[0]"^="X[-3]"^"X[-8]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpsrld (@X[2],@X[0],31);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpslldq(@X[4],@X[0],12); # "X[0]"<<96, extract one dword
+ &vpaddd (@X[0],@X[0],@X[0]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpsrld (@X[3],@X[4],30);
+ &vpor (@X[0],@X[0],@X[2]); # "X[0]"<<<=1
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpslld (@X[4],@X[4],2);
+ &vmovdqa (@X[2],&QWP(64+16*(($Xi-6)%3),"esp")) if ($Xi>5); # restore X[] from backtrace buffer
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vpxor (@X[0],@X[0],@X[3]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpxor (@X[0],@X[0],@X[4]); # "X[0]"^=("X[0]"<<96)<<<2
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vmovdqa (@X[4],&QWP(112-16+16*(($Xi)/5),"esp")); # K_XX_XX
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ foreach (@insns) { eval; } # remaining instructions [if any]
+
+ $Xi++; push(@X,shift(@X)); # "rotate" X[]
+}
+
+sub Xupdate_avx_32_79()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 to 48 instructions
+ my ($a,$b,$c,$d,$e);
+
+ &vpalignr(@X[2],@X[-1&7],@X[-2&7],8); # compose "X[-6]"
+ &vpxor (@X[0],@X[0],@X[-4&7]); # "X[0]"="X[-32]"^"X[-16]"
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+
+ &vpxor (@X[0],@X[0],@X[-7&7]); # "X[0]"^="X[-28]"
+ &vmovdqa (&QWP(64+16*(($Xi-4)%3),"esp"),@X[-4&7]); # save X[] to backtrace buffer
+ eval(shift(@insns));
+ eval(shift(@insns));
+ if ($Xi%5) {
+ &vmovdqa (@X[4],@X[3]); # "perpetuate" K_XX_XX...
+ } else { # ... or load next one
+ &vmovdqa (@X[4],&QWP(112-16+16*($Xi/5),"esp"));
+ }
+ &vpaddd (@X[3],@X[3],@X[-1&7]);
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &vpxor (@X[0],@X[0],@X[2]); # "X[0]"^="X[-6]"
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+
+ &vpsrld (@X[2],@X[0],30);
+ &vmovdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &vpslld (@X[0],@X[0],2);
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &vpor (@X[0],@X[0],@X[2]); # "X[0]"<<<=2
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ &vmovdqa (@X[2],&QWP(64+16*(($Xi-6)%3),"esp")) if($Xi<19); # restore X[] from backtrace buffer
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ foreach (@insns) { eval; } # remaining instructions
+
+ $Xi++; push(@X,shift(@X)); # "rotate" X[]
+}
+
+sub Xuplast_avx_80()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ eval(shift(@insns));
+ &vpaddd (@X[3],@X[3],@X[-1&7]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vmovdqa (&QWP(0+16*(($Xi-1)&3),"esp"),@X[3]); # X[]+K xfer IALU
+
+ foreach (@insns) { eval; } # remaining instructions
+
+ &mov ($inp=@T[1],&DWP(192+4,"esp"));
+ &cmp ($inp,&DWP(192+8,"esp"));
+ &je (&label("done"));
+
+ &vmovdqa(@X[3],&QWP(112+48,"esp")); # K_00_19
+ &vmovdqa(@X[2],&QWP(112+64,"esp")); # pbswap mask
+ &vmovdqu(@X[-4&7],&QWP(0,$inp)); # load input
+ &vmovdqu(@X[-3&7],&QWP(16,$inp));
+ &vmovdqu(@X[-2&7],&QWP(32,$inp));
+ &vmovdqu(@X[-1&7],&QWP(48,$inp));
+ &add ($inp,64);
+ &vpshufb(@X[-4&7],@X[-4&7],@X[2]); # byte swap
+ &mov (&DWP(192+4,"esp"),$inp);
+ &vmovdqa(&QWP(112-16,"esp"),@X[3]); # borrow last backtrace slot
+
+ $Xi=0;
+}
+
+sub Xloop_avx()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vpshufb (@X[($Xi-3)&7],@X[($Xi-3)&7],@X[2]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vpaddd (@X[$Xi&7],@X[($Xi-4)&7],@X[3]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vmovdqa (&QWP(0+16*$Xi,"esp"),@X[$Xi&7]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ foreach (@insns) { eval; }
+ $Xi++;
+}
+
+sub Xtail_avx()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ foreach (@insns) { eval; }
+}
+
+&set_label("loop",16);
+ &Xupdate_avx_16_31(\&body_00_19);
+ &Xupdate_avx_16_31(\&body_00_19);
+ &Xupdate_avx_16_31(\&body_00_19);
+ &Xupdate_avx_16_31(\&body_00_19);
+ &Xupdate_avx_32_79(\&body_00_19);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xupdate_avx_32_79(\&body_40_59);
+ &Xupdate_avx_32_79(\&body_40_59);
+ &Xupdate_avx_32_79(\&body_40_59);
+ &Xupdate_avx_32_79(\&body_40_59);
+ &Xupdate_avx_32_79(\&body_40_59);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xuplast_avx_80(\&body_20_39); # can jump to "done"
+
+ $saved_j=$j; @saved_V=@V;
+
+ &Xloop_avx(\&body_20_39);
+ &Xloop_avx(\&body_20_39);
+ &Xloop_avx(\&body_20_39);
+
+ &mov (@T[1],&DWP(192,"esp")); # update context
+ &add ($A,&DWP(0,@T[1]));
+ &add (@T[0],&DWP(4,@T[1])); # $b
+ &add ($C,&DWP(8,@T[1]));
+ &mov (&DWP(0,@T[1]),$A);
+ &add ($D,&DWP(12,@T[1]));
+ &mov (&DWP(4,@T[1]),@T[0]);
+ &add ($E,&DWP(16,@T[1]));
+ &mov (&DWP(8,@T[1]),$C);
+ &mov ($B,@T[0]);
+ &mov (&DWP(12,@T[1]),$D);
+ &mov (&DWP(16,@T[1]),$E);
+
+ &jmp (&label("loop"));
+
+&set_label("done",16); $j=$saved_j; @V=@saved_V;
+
+ &Xtail_avx(\&body_20_39);
+ &Xtail_avx(\&body_20_39);
+ &Xtail_avx(\&body_20_39);
+
+ &vzeroall();
+
+ &mov (@T[1],&DWP(192,"esp")); # update context
+ &add ($A,&DWP(0,@T[1]));
+ &mov ("esp",&DWP(192+12,"esp")); # restore %esp
+ &add (@T[0],&DWP(4,@T[1])); # $b
+ &add ($C,&DWP(8,@T[1]));
+ &mov (&DWP(0,@T[1]),$A);
+ &add ($D,&DWP(12,@T[1]));
+ &mov (&DWP(4,@T[1]),@T[0]);
+ &add ($E,&DWP(16,@T[1]));
+ &mov (&DWP(8,@T[1]),$C);
+ &mov (&DWP(12,@T[1]),$D);
+ &mov (&DWP(16,@T[1]),$E);
+&function_end("_sha1_block_data_order_avx");
+}
+&set_label("K_XX_XX",64);
+&data_word(0x5a827999,0x5a827999,0x5a827999,0x5a827999); # K_00_19
+&data_word(0x6ed9eba1,0x6ed9eba1,0x6ed9eba1,0x6ed9eba1); # K_20_39
+&data_word(0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc); # K_40_59
+&data_word(0xca62c1d6,0xca62c1d6,0xca62c1d6,0xca62c1d6); # K_60_79
+&data_word(0x00010203,0x04050607,0x08090a0b,0x0c0d0e0f); # pbswap mask
+}
&asciz("SHA1 block transform for x86, CRYPTOGAMS by <appro\@openssl.org>");
&asm_finish();
# There was suggestion to mechanically translate 32-bit code, but I
# dismissed it, reasoning that x86_64 offers enough register bank
# capacity to fully utilize SHA-1 parallelism. Therefore this fresh
-# implementation:-) However! While 64-bit code does performs better
+# implementation:-) However! While 64-bit code does perform better
# on Opteron, I failed to beat 32-bit assembler on EM64T core. Well,
# x86_64 does offer larger *addressable* bank, but out-of-order core
# reaches for even more registers through dynamic aliasing, and EM64T
# Xeon P4 +65% +0% 9.9
# Core2 +60% +10% 7.0
+# August 2009.
+#
+# The code was revised to minimize code size and to maximize
+# "distance" between instructions producing input to 'lea'
+# instruction and the 'lea' instruction itself, which is essential
+# for Intel Atom core.
+
+# October 2010.
+#
+# Add SSSE3, Supplemental[!] SSE3, implementation. The idea behind it
+# is to offload message schedule denoted by Wt in NIST specification,
+# or Xupdate in OpenSSL source, to SIMD unit. See sha1-586.pl module
+# for background and implementation details. The only difference from
+# 32-bit code is that 64-bit code doesn't have to spill @X[] elements
+# to free temporary registers.
+
+# April 2011.
+#
+# Add AVX code path. See sha1-586.pl for further information.
+
+######################################################################
+# Current performance is summarized in following table. Numbers are
+# CPU clock cycles spent to process single byte (less is better).
+#
+# x86_64 SSSE3 AVX
+# P4 9.8 -
+# Opteron 6.6 -
+# Core2 6.7 6.1/+10% -
+# Atom 11.0 9.7/+13% -
+# Westmere 7.1 5.6/+27% -
+# Sandy Bridge 7.9 6.3/+25% 5.2/+51%
+
$flavour = shift;
$output = shift;
if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
die "can't locate x86_64-xlate.pl";
+$avx=1 if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
+ =~ /GNU assembler version ([2-9]\.[0-9]+)/ &&
+ $1>=2.19);
+$avx=1 if (!$avx && $flavour =~ /nasm/ &&
+ `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/ &&
+ $1>=2.03);
+
open STDOUT,"| $^X $xlate $flavour $output";
$ctx="%rdi"; # 1st arg
$inp="%r9";
$num="%r10";
-$xi="%eax";
-$t0="%ebx";
-$t1="%ecx";
-$A="%edx";
-$B="%esi";
-$C="%edi";
-$D="%ebp";
-$E="%r11d";
-$T="%r12d";
-
-@V=($A,$B,$C,$D,$E,$T);
+$t0="%eax";
+$t1="%ebx";
+$t2="%ecx";
+@xi=("%edx","%ebp");
+$A="%esi";
+$B="%edi";
+$C="%r11d";
+$D="%r12d";
+$E="%r13d";
-sub PROLOGUE {
-my $func=shift;
-$code.=<<___;
-.globl $func
-.type $func,\@function,3
-.align 16
-$func:
- push %rbx
- push %rbp
- push %r12
- mov %rsp,%r11
- mov %rdi,$ctx # reassigned argument
- sub \$`8+16*4`,%rsp
- mov %rsi,$inp # reassigned argument
- and \$-64,%rsp
- mov %rdx,$num # reassigned argument
- mov %r11,`16*4`(%rsp)
-.Lprologue:
-
- mov 0($ctx),$A
- mov 4($ctx),$B
- mov 8($ctx),$C
- mov 12($ctx),$D
- mov 16($ctx),$E
-___
-}
-
-sub EPILOGUE {
-my $func=shift;
-$code.=<<___;
- mov `16*4`(%rsp),%rsi
- mov (%rsi),%r12
- mov 8(%rsi),%rbp
- mov 16(%rsi),%rbx
- lea 24(%rsi),%rsp
-.Lepilogue:
- ret
-.size $func,.-$func
-___
-}
+@V=($A,$B,$C,$D,$E);
sub BODY_00_19 {
-my ($i,$a,$b,$c,$d,$e,$f,$host)=@_;
+my ($i,$a,$b,$c,$d,$e)=@_;
my $j=$i+1;
$code.=<<___ if ($i==0);
- mov `4*$i`($inp),$xi
- `"bswap $xi" if(!defined($host))`
- mov $xi,`4*$i`(%rsp)
+ mov `4*$i`($inp),$xi[0]
+ bswap $xi[0]
+ mov $xi[0],`4*$i`(%rsp)
___
$code.=<<___ if ($i<15);
- lea 0x5a827999($xi,$e),$f
mov $c,$t0
- mov `4*$j`($inp),$xi
- mov $a,$e
+ mov `4*$j`($inp),$xi[1]
+ mov $a,$t2
xor $d,$t0
- `"bswap $xi" if(!defined($host))`
- rol \$5,$e
+ bswap $xi[1]
+ rol \$5,$t2
+ lea 0x5a827999($xi[0],$e),$e
and $b,$t0
- mov $xi,`4*$j`(%rsp)
- add $e,$f
+ mov $xi[1],`4*$j`(%rsp)
+ add $t2,$e
xor $d,$t0
rol \$30,$b
- add $t0,$f
+ add $t0,$e
___
$code.=<<___ if ($i>=15);
- lea 0x5a827999($xi,$e),$f
- mov `4*($j%16)`(%rsp),$xi
+ mov `4*($j%16)`(%rsp),$xi[1]
mov $c,$t0
- mov $a,$e
- xor `4*(($j+2)%16)`(%rsp),$xi
+ mov $a,$t2
+ xor `4*(($j+2)%16)`(%rsp),$xi[1]
xor $d,$t0
- rol \$5,$e
- xor `4*(($j+8)%16)`(%rsp),$xi
+ rol \$5,$t2
+ xor `4*(($j+8)%16)`(%rsp),$xi[1]
and $b,$t0
- add $e,$f
- xor `4*(($j+13)%16)`(%rsp),$xi
+ lea 0x5a827999($xi[0],$e),$e
+ xor `4*(($j+13)%16)`(%rsp),$xi[1]
xor $d,$t0
+ rol \$1,$xi[1]
+ add $t2,$e
rol \$30,$b
- add $t0,$f
- rol \$1,$xi
- mov $xi,`4*($j%16)`(%rsp)
+ mov $xi[1],`4*($j%16)`(%rsp)
+ add $t0,$e
___
+unshift(@xi,pop(@xi));
}
sub BODY_20_39 {
-my ($i,$a,$b,$c,$d,$e,$f)=@_;
+my ($i,$a,$b,$c,$d,$e)=@_;
my $j=$i+1;
my $K=($i<40)?0x6ed9eba1:0xca62c1d6;
$code.=<<___ if ($i<79);
- lea $K($xi,$e),$f
- mov `4*($j%16)`(%rsp),$xi
+ mov `4*($j%16)`(%rsp),$xi[1]
mov $c,$t0
- mov $a,$e
- xor `4*(($j+2)%16)`(%rsp),$xi
+ mov $a,$t2
+ xor `4*(($j+2)%16)`(%rsp),$xi[1]
xor $b,$t0
- rol \$5,$e
- xor `4*(($j+8)%16)`(%rsp),$xi
+ rol \$5,$t2
+ lea $K($xi[0],$e),$e
+ xor `4*(($j+8)%16)`(%rsp),$xi[1]
xor $d,$t0
- add $e,$f
- xor `4*(($j+13)%16)`(%rsp),$xi
+ add $t2,$e
+ xor `4*(($j+13)%16)`(%rsp),$xi[1]
rol \$30,$b
- add $t0,$f
- rol \$1,$xi
+ add $t0,$e
+ rol \$1,$xi[1]
___
$code.=<<___ if ($i<76);
- mov $xi,`4*($j%16)`(%rsp)
+ mov $xi[1],`4*($j%16)`(%rsp)
___
$code.=<<___ if ($i==79);
- lea $K($xi,$e),$f
mov $c,$t0
- mov $a,$e
+ mov $a,$t2
xor $b,$t0
- rol \$5,$e
+ lea $K($xi[0],$e),$e
+ rol \$5,$t2
xor $d,$t0
- add $e,$f
+ add $t2,$e
rol \$30,$b
- add $t0,$f
+ add $t0,$e
___
+unshift(@xi,pop(@xi));
}
sub BODY_40_59 {
-my ($i,$a,$b,$c,$d,$e,$f)=@_;
+my ($i,$a,$b,$c,$d,$e)=@_;
my $j=$i+1;
$code.=<<___;
- lea 0x8f1bbcdc($xi,$e),$f
- mov `4*($j%16)`(%rsp),$xi
- mov $b,$t0
- mov $b,$t1
- xor `4*(($j+2)%16)`(%rsp),$xi
- mov $a,$e
- and $c,$t0
- xor `4*(($j+8)%16)`(%rsp),$xi
- or $c,$t1
- rol \$5,$e
- xor `4*(($j+13)%16)`(%rsp),$xi
- and $d,$t1
- add $e,$f
- rol \$1,$xi
- or $t1,$t0
+ mov `4*($j%16)`(%rsp),$xi[1]
+ mov $c,$t0
+ mov $c,$t1
+ xor `4*(($j+2)%16)`(%rsp),$xi[1]
+ and $d,$t0
+ mov $a,$t2
+ xor `4*(($j+8)%16)`(%rsp),$xi[1]
+ xor $d,$t1
+ lea 0x8f1bbcdc($xi[0],$e),$e
+ rol \$5,$t2
+ xor `4*(($j+13)%16)`(%rsp),$xi[1]
+ add $t0,$e
+ and $b,$t1
+ rol \$1,$xi[1]
+ add $t1,$e
rol \$30,$b
- mov $xi,`4*($j%16)`(%rsp)
- add $t0,$f
+ mov $xi[1],`4*($j%16)`(%rsp)
+ add $t2,$e
___
+unshift(@xi,pop(@xi));
}
-$code=".text\n";
+$code.=<<___;
+.text
+.extern OPENSSL_ia32cap_P
-&PROLOGUE("sha1_block_data_order");
-$code.=".align 4\n.Lloop:\n";
+.globl sha1_block_data_order
+.type sha1_block_data_order,\@function,3
+.align 16
+sha1_block_data_order:
+ mov OPENSSL_ia32cap_P+0(%rip),%r9d
+ mov OPENSSL_ia32cap_P+4(%rip),%r8d
+ test \$`1<<9`,%r8d # check SSSE3 bit
+ jz .Lialu
+___
+$code.=<<___ if ($avx);
+ and \$`1<<28`,%r8d # mask AVX bit
+ and \$`1<<30`,%r9d # mask "Intel CPU" bit
+ or %r9d,%r8d
+ cmp \$`1<<28|1<<30`,%r8d
+ je _avx_shortcut
+___
+$code.=<<___;
+ jmp _ssse3_shortcut
+
+.align 16
+.Lialu:
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ mov %rsp,%r11
+ mov %rdi,$ctx # reassigned argument
+ sub \$`8+16*4`,%rsp
+ mov %rsi,$inp # reassigned argument
+ and \$-64,%rsp
+ mov %rdx,$num # reassigned argument
+ mov %r11,`16*4`(%rsp)
+.Lprologue:
+
+ mov 0($ctx),$A
+ mov 4($ctx),$B
+ mov 8($ctx),$C
+ mov 12($ctx),$D
+ mov 16($ctx),$E
+ jmp .Lloop
+
+.align 16
+.Lloop:
+___
for($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); }
for(;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
for(;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); }
for(;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
$code.=<<___;
- add 0($ctx),$E
- add 4($ctx),$T
- add 8($ctx),$A
- add 12($ctx),$B
- add 16($ctx),$C
- mov $E,0($ctx)
- mov $T,4($ctx)
- mov $A,8($ctx)
- mov $B,12($ctx)
- mov $C,16($ctx)
-
- xchg $E,$A # mov $E,$A
- xchg $T,$B # mov $T,$B
- xchg $E,$C # mov $A,$C
- xchg $T,$D # mov $B,$D
- # mov $C,$E
- lea `16*4`($inp),$inp
+ add 0($ctx),$A
+ add 4($ctx),$B
+ add 8($ctx),$C
+ add 12($ctx),$D
+ add 16($ctx),$E
+ mov $A,0($ctx)
+ mov $B,4($ctx)
+ mov $C,8($ctx)
+ mov $D,12($ctx)
+ mov $E,16($ctx)
+
sub \$1,$num
+ lea `16*4`($inp),$inp
jnz .Lloop
+
+ mov `16*4`(%rsp),%rsi
+ mov (%rsi),%r13
+ mov 8(%rsi),%r12
+ mov 16(%rsi),%rbp
+ mov 24(%rsi),%rbx
+ lea 32(%rsi),%rsp
+.Lepilogue:
+ ret
+.size sha1_block_data_order,.-sha1_block_data_order
___
-&EPILOGUE("sha1_block_data_order");
+{{{
+my $Xi=4;
+my @X=map("%xmm$_",(4..7,0..3));
+my @Tx=map("%xmm$_",(8..10));
+my @V=($A,$B,$C,$D,$E)=("%eax","%ebx","%ecx","%edx","%ebp"); # size optimization
+my @T=("%esi","%edi");
+my $j=0;
+my $K_XX_XX="%r11";
+
+my $_rol=sub { &rol(@_) };
+my $_ror=sub { &ror(@_) };
+
+$code.=<<___;
+.type sha1_block_data_order_ssse3,\@function,3
+.align 16
+sha1_block_data_order_ssse3:
+_ssse3_shortcut:
+ push %rbx
+ push %rbp
+ push %r12
+ lea `-64-($win64?5*16:0)`(%rsp),%rsp
+___
+$code.=<<___ if ($win64);
+ movaps %xmm6,64+0(%rsp)
+ movaps %xmm7,64+16(%rsp)
+ movaps %xmm8,64+32(%rsp)
+ movaps %xmm9,64+48(%rsp)
+ movaps %xmm10,64+64(%rsp)
+.Lprologue_ssse3:
+___
+$code.=<<___;
+ mov %rdi,$ctx # reassigned argument
+ mov %rsi,$inp # reassigned argument
+ mov %rdx,$num # reassigned argument
+
+ shl \$6,$num
+ add $inp,$num
+ lea K_XX_XX(%rip),$K_XX_XX
+
+ mov 0($ctx),$A # load context
+ mov 4($ctx),$B
+ mov 8($ctx),$C
+ mov 12($ctx),$D
+ mov $B,@T[0] # magic seed
+ mov 16($ctx),$E
+
+ movdqa 64($K_XX_XX),@X[2] # pbswap mask
+ movdqa 0($K_XX_XX),@Tx[1] # K_00_19
+ movdqu 0($inp),@X[-4&7] # load input to %xmm[0-3]
+ movdqu 16($inp),@X[-3&7]
+ movdqu 32($inp),@X[-2&7]
+ movdqu 48($inp),@X[-1&7]
+ pshufb @X[2],@X[-4&7] # byte swap
+ add \$64,$inp
+ pshufb @X[2],@X[-3&7]
+ pshufb @X[2],@X[-2&7]
+ pshufb @X[2],@X[-1&7]
+ paddd @Tx[1],@X[-4&7] # add K_00_19
+ paddd @Tx[1],@X[-3&7]
+ paddd @Tx[1],@X[-2&7]
+ movdqa @X[-4&7],0(%rsp) # X[]+K xfer to IALU
+ psubd @Tx[1],@X[-4&7] # restore X[]
+ movdqa @X[-3&7],16(%rsp)
+ psubd @Tx[1],@X[-3&7]
+ movdqa @X[-2&7],32(%rsp)
+ psubd @Tx[1],@X[-2&7]
+ jmp .Loop_ssse3
+___
+
+sub AUTOLOAD() # thunk [simplified] 32-bit style perlasm
+{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://;
+ my $arg = pop;
+ $arg = "\$$arg" if ($arg*1 eq $arg);
+ $code .= "\t$opcode\t".join(',',$arg,reverse @_)."\n";
+}
+
+sub Xupdate_ssse3_16_31() # recall that $Xi starts wtih 4
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 40 instructions
+ my ($a,$b,$c,$d,$e);
+
+ &movdqa (@X[0],@X[-3&7]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &movdqa (@Tx[0],@X[-1&7]);
+ &palignr(@X[0],@X[-4&7],8); # compose "X[-14]" in "X[0]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &paddd (@Tx[1],@X[-1&7]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &psrldq (@Tx[0],4); # "X[-3]", 3 dwords
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &pxor (@X[0],@X[-4&7]); # "X[0]"^="X[-16]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &pxor (@Tx[0],@X[-2&7]); # "X[-3]"^"X[-8]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &pxor (@X[0],@Tx[0]); # "X[0]"^="X[-3]"^"X[-8]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &movdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &movdqa (@Tx[2],@X[0]);
+ &movdqa (@Tx[0],@X[0]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &pslldq (@Tx[2],12); # "X[0]"<<96, extract one dword
+ &paddd (@X[0],@X[0]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &psrld (@Tx[0],31);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &movdqa (@Tx[1],@Tx[2]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &psrld (@Tx[2],30);
+ &por (@X[0],@Tx[0]); # "X[0]"<<<=1
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &pslld (@Tx[1],2);
+ &pxor (@X[0],@Tx[2]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &movdqa (@Tx[2],eval(16*(($Xi)/5))."($K_XX_XX)"); # K_XX_XX
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &pxor (@X[0],@Tx[1]); # "X[0]"^=("X[0]">>96)<<<2
+
+ foreach (@insns) { eval; } # remaining instructions [if any]
+
+ $Xi++; push(@X,shift(@X)); # "rotate" X[]
+ push(@Tx,shift(@Tx));
+}
+
+sub Xupdate_ssse3_32_79()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 to 48 instructions
+ my ($a,$b,$c,$d,$e);
+
+ &movdqa (@Tx[0],@X[-1&7]) if ($Xi==8);
+ eval(shift(@insns)); # body_20_39
+ &pxor (@X[0],@X[-4&7]); # "X[0]"="X[-32]"^"X[-16]"
+ &palignr(@Tx[0],@X[-2&7],8); # compose "X[-6]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+
+ &pxor (@X[0],@X[-7&7]); # "X[0]"^="X[-28]"
+ eval(shift(@insns));
+ eval(shift(@insns)) if (@insns[0] !~ /&ro[rl]/);
+ if ($Xi%5) {
+ &movdqa (@Tx[2],@Tx[1]);# "perpetuate" K_XX_XX...
+ } else { # ... or load next one
+ &movdqa (@Tx[2],eval(16*($Xi/5))."($K_XX_XX)");
+ }
+ &paddd (@Tx[1],@X[-1&7]);
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &pxor (@X[0],@Tx[0]); # "X[0]"^="X[-6]"
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+
+ &movdqa (@Tx[0],@X[0]);
+ &movdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &pslld (@X[0],2);
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ &psrld (@Tx[0],30);
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &por (@X[0],@Tx[0]); # "X[0]"<<<=2
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ &movdqa (@Tx[1],@X[0]) if ($Xi<19);
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+ eval(shift(@insns));
+
+ foreach (@insns) { eval; } # remaining instructions
+
+ $Xi++; push(@X,shift(@X)); # "rotate" X[]
+ push(@Tx,shift(@Tx));
+}
+
+sub Xuplast_ssse3_80()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ eval(shift(@insns));
+ &paddd (@Tx[1],@X[-1&7]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &movdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer IALU
+
+ foreach (@insns) { eval; } # remaining instructions
+
+ &cmp ($inp,$num);
+ &je (".Ldone_ssse3");
+
+ unshift(@Tx,pop(@Tx));
+
+ &movdqa (@X[2],"64($K_XX_XX)"); # pbswap mask
+ &movdqa (@Tx[1],"0($K_XX_XX)"); # K_00_19
+ &movdqu (@X[-4&7],"0($inp)"); # load input
+ &movdqu (@X[-3&7],"16($inp)");
+ &movdqu (@X[-2&7],"32($inp)");
+ &movdqu (@X[-1&7],"48($inp)");
+ &pshufb (@X[-4&7],@X[2]); # byte swap
+ &add ($inp,64);
+
+ $Xi=0;
+}
+
+sub Xloop_ssse3()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &pshufb (@X[($Xi-3)&7],@X[2]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &paddd (@X[($Xi-4)&7],@Tx[1]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &movdqa (eval(16*$Xi)."(%rsp)",@X[($Xi-4)&7]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &psubd (@X[($Xi-4)&7],@Tx[1]);
+
+ foreach (@insns) { eval; }
+ $Xi++;
+}
+
+sub Xtail_ssse3()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ foreach (@insns) { eval; }
+}
+
+sub body_00_19 () {
+ (
+ '($a,$b,$c,$d,$e)=@V;'.
+ '&add ($e,eval(4*($j&15))."(%rsp)");', # X[]+K xfer
+ '&xor ($c,$d);',
+ '&mov (@T[1],$a);', # $b in next round
+ '&$_rol ($a,5);',
+ '&and (@T[0],$c);', # ($b&($c^$d))
+ '&xor ($c,$d);', # restore $c
+ '&xor (@T[0],$d);',
+ '&add ($e,$a);',
+ '&$_ror ($b,$j?7:2);', # $b>>>2
+ '&add ($e,@T[0]);' .'$j++; unshift(@V,pop(@V)); unshift(@T,pop(@T));'
+ );
+}
+
+sub body_20_39 () {
+ (
+ '($a,$b,$c,$d,$e)=@V;'.
+ '&add ($e,eval(4*($j++&15))."(%rsp)");', # X[]+K xfer
+ '&xor (@T[0],$d);', # ($b^$d)
+ '&mov (@T[1],$a);', # $b in next round
+ '&$_rol ($a,5);',
+ '&xor (@T[0],$c);', # ($b^$d^$c)
+ '&add ($e,$a);',
+ '&$_ror ($b,7);', # $b>>>2
+ '&add ($e,@T[0]);' .'unshift(@V,pop(@V)); unshift(@T,pop(@T));'
+ );
+}
+
+sub body_40_59 () {
+ (
+ '($a,$b,$c,$d,$e)=@V;'.
+ '&mov (@T[1],$c);',
+ '&xor ($c,$d);',
+ '&add ($e,eval(4*($j++&15))."(%rsp)");', # X[]+K xfer
+ '&and (@T[1],$d);',
+ '&and (@T[0],$c);', # ($b&($c^$d))
+ '&$_ror ($b,7);', # $b>>>2
+ '&add ($e,@T[1]);',
+ '&mov (@T[1],$a);', # $b in next round
+ '&$_rol ($a,5);',
+ '&add ($e,@T[0]);',
+ '&xor ($c,$d);', # restore $c
+ '&add ($e,$a);' .'unshift(@V,pop(@V)); unshift(@T,pop(@T));'
+ );
+}
$code.=<<___;
-.asciz "SHA1 block transform for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
.align 16
+.Loop_ssse3:
+___
+ &Xupdate_ssse3_16_31(\&body_00_19);
+ &Xupdate_ssse3_16_31(\&body_00_19);
+ &Xupdate_ssse3_16_31(\&body_00_19);
+ &Xupdate_ssse3_16_31(\&body_00_19);
+ &Xupdate_ssse3_32_79(\&body_00_19);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xupdate_ssse3_32_79(\&body_40_59);
+ &Xupdate_ssse3_32_79(\&body_40_59);
+ &Xupdate_ssse3_32_79(\&body_40_59);
+ &Xupdate_ssse3_32_79(\&body_40_59);
+ &Xupdate_ssse3_32_79(\&body_40_59);
+ &Xupdate_ssse3_32_79(\&body_20_39);
+ &Xuplast_ssse3_80(\&body_20_39); # can jump to "done"
+
+ $saved_j=$j; @saved_V=@V;
+
+ &Xloop_ssse3(\&body_20_39);
+ &Xloop_ssse3(\&body_20_39);
+ &Xloop_ssse3(\&body_20_39);
+
+$code.=<<___;
+ add 0($ctx),$A # update context
+ add 4($ctx),@T[0]
+ add 8($ctx),$C
+ add 12($ctx),$D
+ mov $A,0($ctx)
+ add 16($ctx),$E
+ mov @T[0],4($ctx)
+ mov @T[0],$B # magic seed
+ mov $C,8($ctx)
+ mov $D,12($ctx)
+ mov $E,16($ctx)
+ jmp .Loop_ssse3
+
+.align 16
+.Ldone_ssse3:
+___
+ $j=$saved_j; @V=@saved_V;
+
+ &Xtail_ssse3(\&body_20_39);
+ &Xtail_ssse3(\&body_20_39);
+ &Xtail_ssse3(\&body_20_39);
+
+$code.=<<___;
+ add 0($ctx),$A # update context
+ add 4($ctx),@T[0]
+ add 8($ctx),$C
+ mov $A,0($ctx)
+ add 12($ctx),$D
+ mov @T[0],4($ctx)
+ add 16($ctx),$E
+ mov $C,8($ctx)
+ mov $D,12($ctx)
+ mov $E,16($ctx)
+___
+$code.=<<___ if ($win64);
+ movaps 64+0(%rsp),%xmm6
+ movaps 64+16(%rsp),%xmm7
+ movaps 64+32(%rsp),%xmm8
+ movaps 64+48(%rsp),%xmm9
+ movaps 64+64(%rsp),%xmm10
+___
+$code.=<<___;
+ lea `64+($win64?6*16:0)`(%rsp),%rsi
+ mov 0(%rsi),%r12
+ mov 8(%rsi),%rbp
+ mov 16(%rsi),%rbx
+ lea 24(%rsi),%rsp
+.Lepilogue_ssse3:
+ ret
+.size sha1_block_data_order_ssse3,.-sha1_block_data_order_ssse3
+___
+
+if ($avx) {
+my $Xi=4;
+my @X=map("%xmm$_",(4..7,0..3));
+my @Tx=map("%xmm$_",(8..10));
+my @V=($A,$B,$C,$D,$E)=("%eax","%ebx","%ecx","%edx","%ebp"); # size optimization
+my @T=("%esi","%edi");
+my $j=0;
+my $K_XX_XX="%r11";
+
+my $_rol=sub { &shld(@_[0],@_) };
+my $_ror=sub { &shrd(@_[0],@_) };
+
+$code.=<<___;
+.type sha1_block_data_order_avx,\@function,3
+.align 16
+sha1_block_data_order_avx:
+_avx_shortcut:
+ push %rbx
+ push %rbp
+ push %r12
+ lea `-64-($win64?5*16:0)`(%rsp),%rsp
+___
+$code.=<<___ if ($win64);
+ movaps %xmm6,64+0(%rsp)
+ movaps %xmm7,64+16(%rsp)
+ movaps %xmm8,64+32(%rsp)
+ movaps %xmm9,64+48(%rsp)
+ movaps %xmm10,64+64(%rsp)
+.Lprologue_avx:
+___
+$code.=<<___;
+ mov %rdi,$ctx # reassigned argument
+ mov %rsi,$inp # reassigned argument
+ mov %rdx,$num # reassigned argument
+ vzeroall
+
+ shl \$6,$num
+ add $inp,$num
+ lea K_XX_XX(%rip),$K_XX_XX
+
+ mov 0($ctx),$A # load context
+ mov 4($ctx),$B
+ mov 8($ctx),$C
+ mov 12($ctx),$D
+ mov $B,@T[0] # magic seed
+ mov 16($ctx),$E
+
+ vmovdqa 64($K_XX_XX),@X[2] # pbswap mask
+ vmovdqa 0($K_XX_XX),@Tx[1] # K_00_19
+ vmovdqu 0($inp),@X[-4&7] # load input to %xmm[0-3]
+ vmovdqu 16($inp),@X[-3&7]
+ vmovdqu 32($inp),@X[-2&7]
+ vmovdqu 48($inp),@X[-1&7]
+ vpshufb @X[2],@X[-4&7],@X[-4&7] # byte swap
+ add \$64,$inp
+ vpshufb @X[2],@X[-3&7],@X[-3&7]
+ vpshufb @X[2],@X[-2&7],@X[-2&7]
+ vpshufb @X[2],@X[-1&7],@X[-1&7]
+ vpaddd @Tx[1],@X[-4&7],@X[0] # add K_00_19
+ vpaddd @Tx[1],@X[-3&7],@X[1]
+ vpaddd @Tx[1],@X[-2&7],@X[2]
+ vmovdqa @X[0],0(%rsp) # X[]+K xfer to IALU
+ vmovdqa @X[1],16(%rsp)
+ vmovdqa @X[2],32(%rsp)
+ jmp .Loop_avx
+___
+
+sub Xupdate_avx_16_31() # recall that $Xi starts wtih 4
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 40 instructions
+ my ($a,$b,$c,$d,$e);
+
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vpalignr(@X[0],@X[-3&7],@X[-4&7],8); # compose "X[-14]" in "X[0]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpaddd (@Tx[1],@Tx[1],@X[-1&7]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vpsrldq(@Tx[0],@X[-1&7],4); # "X[-3]", 3 dwords
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vpxor (@X[0],@X[0],@X[-4&7]); # "X[0]"^="X[-16]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpxor (@Tx[0],@Tx[0],@X[-2&7]); # "X[-3]"^"X[-8]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpxor (@X[0],@X[0],@Tx[0]); # "X[0]"^="X[-3]"^"X[-8]"
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vmovdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpsrld (@Tx[0],@X[0],31);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpslldq(@Tx[2],@X[0],12); # "X[0]"<<96, extract one dword
+ &vpaddd (@X[0],@X[0],@X[0]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpsrld (@Tx[1],@Tx[2],30);
+ &vpor (@X[0],@X[0],@Tx[0]); # "X[0]"<<<=1
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpslld (@Tx[2],@Tx[2],2);
+ &vpxor (@X[0],@X[0],@Tx[1]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &vpxor (@X[0],@X[0],@Tx[2]); # "X[0]"^=("X[0]">>96)<<<2
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vmovdqa (@Tx[2],eval(16*(($Xi)/5))."($K_XX_XX)"); # K_XX_XX
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+
+ foreach (@insns) { eval; } # remaining instructions [if any]
+
+ $Xi++; push(@X,shift(@X)); # "rotate" X[]
+ push(@Tx,shift(@Tx));
+}
+
+sub Xupdate_avx_32_79()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 to 48 instructions
+ my ($a,$b,$c,$d,$e);
+
+ &vpalignr(@Tx[0],@X[-1&7],@X[-2&7],8); # compose "X[-6]"
+ &vpxor (@X[0],@X[0],@X[-4&7]); # "X[0]"="X[-32]"^"X[-16]"
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+
+ &vpxor (@X[0],@X[0],@X[-7&7]); # "X[0]"^="X[-28]"
+ eval(shift(@insns));
+ eval(shift(@insns)) if (@insns[0] !~ /&ro[rl]/);
+ if ($Xi%5) {
+ &vmovdqa (@Tx[2],@Tx[1]);# "perpetuate" K_XX_XX...
+ } else { # ... or load next one
+ &vmovdqa (@Tx[2],eval(16*($Xi/5))."($K_XX_XX)");
+ }
+ &vpaddd (@Tx[1],@Tx[1],@X[-1&7]);
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &vpxor (@X[0],@X[0],@Tx[0]); # "X[0]"^="X[-6]"
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+
+ &vpsrld (@Tx[0],@X[0],30);
+ &vmovdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &vpslld (@X[0],@X[0],2);
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # ror
+ eval(shift(@insns));
+
+ &vpor (@X[0],@X[0],@Tx[0]); # "X[0]"<<<=2
+ eval(shift(@insns)); # body_20_39
+ eval(shift(@insns));
+ &vmovdqa (@Tx[1],@X[0]) if ($Xi<19);
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns)); # rol
+ eval(shift(@insns));
+
+ foreach (@insns) { eval; } # remaining instructions
+
+ $Xi++; push(@X,shift(@X)); # "rotate" X[]
+ push(@Tx,shift(@Tx));
+}
+
+sub Xuplast_avx_80()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ eval(shift(@insns));
+ &vpaddd (@Tx[1],@Tx[1],@X[-1&7]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ &movdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer IALU
+
+ foreach (@insns) { eval; } # remaining instructions
+
+ &cmp ($inp,$num);
+ &je (".Ldone_avx");
+
+ unshift(@Tx,pop(@Tx));
+
+ &vmovdqa(@X[2],"64($K_XX_XX)"); # pbswap mask
+ &vmovdqa(@Tx[1],"0($K_XX_XX)"); # K_00_19
+ &vmovdqu(@X[-4&7],"0($inp)"); # load input
+ &vmovdqu(@X[-3&7],"16($inp)");
+ &vmovdqu(@X[-2&7],"32($inp)");
+ &vmovdqu(@X[-1&7],"48($inp)");
+ &vpshufb(@X[-4&7],@X[-4&7],@X[2]); # byte swap
+ &add ($inp,64);
+
+ $Xi=0;
+}
+
+sub Xloop_avx()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vpshufb(@X[($Xi-3)&7],@X[($Xi-3)&7],@X[2]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vpaddd (@X[$Xi&7],@X[($Xi-4)&7],@Tx[1]);
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ eval(shift(@insns));
+ &vmovdqa(eval(16*$Xi)."(%rsp)",@X[$Xi&7]); # X[]+K xfer to IALU
+ eval(shift(@insns));
+ eval(shift(@insns));
+
+ foreach (@insns) { eval; }
+ $Xi++;
+}
+
+sub Xtail_avx()
+{ use integer;
+ my $body = shift;
+ my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
+ my ($a,$b,$c,$d,$e);
+
+ foreach (@insns) { eval; }
+}
+
+$code.=<<___;
+.align 16
+.Loop_avx:
+___
+ &Xupdate_avx_16_31(\&body_00_19);
+ &Xupdate_avx_16_31(\&body_00_19);
+ &Xupdate_avx_16_31(\&body_00_19);
+ &Xupdate_avx_16_31(\&body_00_19);
+ &Xupdate_avx_32_79(\&body_00_19);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xupdate_avx_32_79(\&body_40_59);
+ &Xupdate_avx_32_79(\&body_40_59);
+ &Xupdate_avx_32_79(\&body_40_59);
+ &Xupdate_avx_32_79(\&body_40_59);
+ &Xupdate_avx_32_79(\&body_40_59);
+ &Xupdate_avx_32_79(\&body_20_39);
+ &Xuplast_avx_80(\&body_20_39); # can jump to "done"
+
+ $saved_j=$j; @saved_V=@V;
+
+ &Xloop_avx(\&body_20_39);
+ &Xloop_avx(\&body_20_39);
+ &Xloop_avx(\&body_20_39);
+
+$code.=<<___;
+ add 0($ctx),$A # update context
+ add 4($ctx),@T[0]
+ add 8($ctx),$C
+ add 12($ctx),$D
+ mov $A,0($ctx)
+ add 16($ctx),$E
+ mov @T[0],4($ctx)
+ mov @T[0],$B # magic seed
+ mov $C,8($ctx)
+ mov $D,12($ctx)
+ mov $E,16($ctx)
+ jmp .Loop_avx
+
+.align 16
+.Ldone_avx:
+___
+ $j=$saved_j; @V=@saved_V;
+
+ &Xtail_avx(\&body_20_39);
+ &Xtail_avx(\&body_20_39);
+ &Xtail_avx(\&body_20_39);
+
+$code.=<<___;
+ vzeroall
+
+ add 0($ctx),$A # update context
+ add 4($ctx),@T[0]
+ add 8($ctx),$C
+ mov $A,0($ctx)
+ add 12($ctx),$D
+ mov @T[0],4($ctx)
+ add 16($ctx),$E
+ mov $C,8($ctx)
+ mov $D,12($ctx)
+ mov $E,16($ctx)
+___
+$code.=<<___ if ($win64);
+ movaps 64+0(%rsp),%xmm6
+ movaps 64+16(%rsp),%xmm7
+ movaps 64+32(%rsp),%xmm8
+ movaps 64+48(%rsp),%xmm9
+ movaps 64+64(%rsp),%xmm10
+___
+$code.=<<___;
+ lea `64+($win64?6*16:0)`(%rsp),%rsi
+ mov 0(%rsi),%r12
+ mov 8(%rsi),%rbp
+ mov 16(%rsi),%rbx
+ lea 24(%rsi),%rsp
+.Lepilogue_avx:
+ ret
+.size sha1_block_data_order_avx,.-sha1_block_data_order_avx
+___
+}
+$code.=<<___;
+.align 64
+K_XX_XX:
+.long 0x5a827999,0x5a827999,0x5a827999,0x5a827999 # K_00_19
+.long 0x6ed9eba1,0x6ed9eba1,0x6ed9eba1,0x6ed9eba1 # K_20_39
+.long 0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc # K_40_59
+.long 0xca62c1d6,0xca62c1d6,0xca62c1d6,0xca62c1d6 # K_60_79
+.long 0x00010203,0x04050607,0x08090a0b,0x0c0d0e0f # pbswap mask
+___
+}}}
+$code.=<<___;
+.asciz "SHA1 block transform for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
+.align 64
___
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
lea .Lprologue(%rip),%r10
cmp %r10,%rbx # context->Rip<.Lprologue
- jb .Lin_prologue
+ jb .Lcommon_seh_tail
mov 152($context),%rax # pull context->Rsp
lea .Lepilogue(%rip),%r10
cmp %r10,%rbx # context->Rip>=.Lepilogue
- jae .Lin_prologue
+ jae .Lcommon_seh_tail
mov `16*4`(%rax),%rax # pull saved stack pointer
- lea 24(%rax),%rax
+ lea 32(%rax),%rax
mov -8(%rax),%rbx
mov -16(%rax),%rbp
mov -24(%rax),%r12
+ mov -32(%rax),%r13
mov %rbx,144($context) # restore context->Rbx
mov %rbp,160($context) # restore context->Rbp
mov %r12,216($context) # restore context->R12
+ mov %r13,224($context) # restore context->R13
-.Lin_prologue:
+ jmp .Lcommon_seh_tail
+.size se_handler,.-se_handler
+
+.type ssse3_handler,\@abi-omnipotent
+.align 16
+ssse3_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 120($context),%rax # pull context->Rax
+ mov 248($context),%rbx # pull context->Rip
+
+ mov 8($disp),%rsi # disp->ImageBase
+ mov 56($disp),%r11 # disp->HandlerData
+
+ mov 0(%r11),%r10d # HandlerData[0]
+ lea (%rsi,%r10),%r10 # prologue label
+ cmp %r10,%rbx # context->Rip<prologue label
+ jb .Lcommon_seh_tail
+
+ mov 152($context),%rax # pull context->Rsp
+
+ mov 4(%r11),%r10d # HandlerData[1]
+ lea (%rsi,%r10),%r10 # epilogue label
+ cmp %r10,%rbx # context->Rip>=epilogue label
+ jae .Lcommon_seh_tail
+
+ lea 64(%rax),%rsi
+ lea 512($context),%rdi # &context.Xmm6
+ mov \$10,%ecx
+ .long 0xa548f3fc # cld; rep movsq
+ lea 24+5*16(%rax),%rax # adjust stack pointer
+
+ mov -8(%rax),%rbx
+ mov -16(%rax),%rbp
+ mov %rbx,144($context) # restore context->Rbx
+ mov %rbp,160($context) # restore context->Rbp
+
+.Lcommon_seh_tail:
mov 8(%rax),%rdi
mov 16(%rax),%rsi
mov %rax,152($context) # restore context->Rsp
pop %rdi
pop %rsi
ret
-.size se_handler,.-se_handler
+.size ssse3_handler,.-ssse3_handler
.section .pdata
.align 4
.rva .LSEH_begin_sha1_block_data_order
.rva .LSEH_end_sha1_block_data_order
.rva .LSEH_info_sha1_block_data_order
-
+ .rva .LSEH_begin_sha1_block_data_order_ssse3
+ .rva .LSEH_end_sha1_block_data_order_ssse3
+ .rva .LSEH_info_sha1_block_data_order_ssse3
+___
+$code.=<<___ if ($avx);
+ .rva .LSEH_begin_sha1_block_data_order_avx
+ .rva .LSEH_end_sha1_block_data_order_avx
+ .rva .LSEH_info_sha1_block_data_order_avx
+___
+$code.=<<___;
.section .xdata
.align 8
.LSEH_info_sha1_block_data_order:
.byte 9,0,0,0
.rva se_handler
+.LSEH_info_sha1_block_data_order_ssse3:
+ .byte 9,0,0,0
+ .rva ssse3_handler
+ .rva .Lprologue_ssse3,.Lepilogue_ssse3 # HandlerData[]
+___
+$code.=<<___ if ($avx);
+.LSEH_info_sha1_block_data_order_avx:
+ .byte 9,0,0,0
+ .rva ssse3_handler
+ .rva .Lprologue_avx,.Lepilogue_avx # HandlerData[]
___
}
projects / oweals / openssl.git / commitdiff