Commit 84968e25 authored by Andy Polyakov's avatar Andy Polyakov
Browse files

x86[_64] assembler pack: back-port SHA1 and RC4 from HEAD.

parent 10fd0b7b

crypto/rc4/asm/rc4-586.pl

+153 −13
Original line number Diff line number Diff line
@@ -24,10 +24,38 @@ 
#	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";
@@ -62,6 +90,68 @@ sub RC4_loop { 
	&$func	($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	($dat,&wparam(0));	# load key schedule pointer
@@ -94,11 +184,56 @@ sub RC4_loop { 
	&and	($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));
@@ -151,7 +286,7 @@ sub RC4_loop { 


&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");
@@ -164,10 +299,8 @@ $idi="ebp"; 
$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
@@ -245,7 +378,7 @@ $idx="edx"; 
	&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");
@@ -254,14 +387,21 @@ $idx="edx"; 
	&blindpop("eax");

	&lea	("eax",&DWP(&label("opts")."-".&label("pic_point"),"eax"));

	&picmeup("edx","OPENSSL_ia32cap_P");

	&bt	(&DWP(0,"edx"),20);

	&jnc	(&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("skip");

&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");

crypto/rc4/asm/rc4-x86_64.pl

+227 −55
Original line number Diff line number Diff line
@@ -7,6 +7,8 @@ 
# 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
@@ -19,6 +21,8 @@ 
# 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
@@ -26,6 +30,8 @@ 
# 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
@@ -33,10 +39,14 @@ 
# 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
@@ -50,6 +60,8 @@ 
# 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
@@ -58,6 +70,37 @@ 
# 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; }
@@ -76,13 +119,10 @@ $len="%rsi"; # arg2 
$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
@@ -95,48 +135,173 @@ RC4: or $len,$len 
	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
@@ -152,9 +317,8 @@ $code.=<<___; 
	movl	($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
@@ -165,13 +329,11 @@ $code.=<<___; 
	movzb	($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++) {
@@ -188,8 +350,8 @@ $code.=<<___; 
	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

}
@@ -207,16 +369,16 @@ $code.=<<___; 
	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
@@ -229,6 +391,7 @@ $code.=<<___; 
.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])
@@ -260,16 +423,16 @@ $code.=<<___; 
	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
@@ -280,12 +443,9 @@ private_RC4_set_key: 
	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:
@@ -339,7 +499,7 @@ private_RC4_set_key: 
	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
@@ -348,18 +508,20 @@ RC4_options: 
	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
@@ -497,7 +659,17 @@ key_se_handler: 
___

}



$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;

crypto/sha/asm/sha1-586.pl

+1058 −49

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crypto/sha/asm/sha1-x86_64.pl

+1042 −138

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