Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/modes/asm/ghash-x86_64.pl

Index: openssl/crypto/modes/asm/ghash-x86_64.pl
diff --git a/openssl/crypto/modes/asm/ghash-x86_64.pl b/openssl/crypto/modes/asm/ghash-x86_64.pl
deleted file mode 100644
index 38d779edbcfde5fd0b4ae67126a0f944de47cdd7..0000000000000000000000000000000000000000
--- a/openssl/crypto/modes/asm/ghash-x86_64.pl
+++ /dev/null
@@ -1,806 +0,0 @@
-#!/usr/bin/env perl
-#
-# ====================================================================
-# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
-# project. The module is, however, dual licensed under OpenSSL and
-# CRYPTOGAMS licenses depending on where you obtain it. For further
-# details see http://www.openssl.org/~appro/cryptogams/.
-# ====================================================================
-#
-# March, June 2010
-#
-# The module implements "4-bit" GCM GHASH function and underlying
-# single multiplication operation in GF(2^128). "4-bit" means that
-# it uses 256 bytes per-key table [+128 bytes shared table]. GHASH
-# function features so called "528B" variant utilizing additional
-# 256+16 bytes of per-key storage [+512 bytes shared table].
-# Performance results are for this streamed GHASH subroutine and are
-# expressed in cycles per processed byte, less is better:
-#
-#		gcc 3.4.x(*)	assembler
-#
-# P4		28.6		14.0		+100%
-# Opteron	19.3		7.7		+150%
-# Core2		17.8		8.1(**)		+120%
-#
-# (*)	comparison is not completely fair, because C results are
-#	for vanilla "256B" implementation, while assembler results
-#	are for "528B";-)
-# (**)	it's mystery [to me] why Core2 result is not same as for
-#	Opteron;
-
-# May 2010
-#
-# Add PCLMULQDQ version performing at 2.02 cycles per processed byte.
-# See ghash-x86.pl for background information and details about coding
-# techniques.
-#
-# Special thanks to David Woodhouse <dwmw2@infradead.org> for
-# providing access to a Westmere-based system on behalf of Intel
-# Open Source Technology Centre.
-
-$flavour = shift;
-$output  = shift;
-if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
-
-$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
-
-$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
-( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
-( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
-die "can't locate x86_64-xlate.pl";
-
-open OUT,"| \"$^X\" $xlate $flavour $output";
-*STDOUT=*OUT;
-
-# common register layout
-$nlo="%rax";
-$nhi="%rbx";
-$Zlo="%r8";
-$Zhi="%r9";
-$tmp="%r10";
-$rem_4bit = "%r11";
-
-$Xi="%rdi";
-$Htbl="%rsi";
-
-# per-function register layout
-$cnt="%rcx";
-$rem="%rdx";
-
-sub LB() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1l/	or
-			$r =~ s/%[er]([sd]i)/%\1l/	or
-			$r =~ s/%[er](bp)/%\1l/		or
-			$r =~ s/%(r[0-9]+)[d]?/%\1b/;   $r; }
-
-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";
-}
-
-{ my $N;
-  sub loop() {
-  my $inp = shift;
-
-	$N++;
-$code.=<<___;
-	xor	$nlo,$nlo
-	xor	$nhi,$nhi
-	mov	`&LB("$Zlo")`,`&LB("$nlo")`
-	mov	`&LB("$Zlo")`,`&LB("$nhi")`
-	shl	\$4,`&LB("$nlo")`
-	mov	\$14,$cnt
-	mov	8($Htbl,$nlo),$Zlo
-	mov	($Htbl,$nlo),$Zhi
-	and	\$0xf0,`&LB("$nhi")`
-	mov	$Zlo,$rem
-	jmp	.Loop$N
-
-.align	16
-.Loop$N:
-	shr	\$4,$Zlo
-	and	\$0xf,$rem
-	mov	$Zhi,$tmp
-	mov	($inp,$cnt),`&LB("$nlo")`
-	shr	\$4,$Zhi
-	xor	8($Htbl,$nhi),$Zlo
-	shl	\$60,$tmp
-	xor	($Htbl,$nhi),$Zhi
-	mov	`&LB("$nlo")`,`&LB("$nhi")`
-	xor	($rem_4bit,$rem,8),$Zhi
-	mov	$Zlo,$rem
-	shl	\$4,`&LB("$nlo")`
-	xor	$tmp,$Zlo
-	dec	$cnt
-	js	.Lbreak$N
-
-	shr	\$4,$Zlo
-	and	\$0xf,$rem
-	mov	$Zhi,$tmp
-	shr	\$4,$Zhi
-	xor	8($Htbl,$nlo),$Zlo
-	shl	\$60,$tmp
-	xor	($Htbl,$nlo),$Zhi
-	and	\$0xf0,`&LB("$nhi")`
-	xor	($rem_4bit,$rem,8),$Zhi
-	mov	$Zlo,$rem
-	xor	$tmp,$Zlo
-	jmp	.Loop$N
-
-.align	16
-.Lbreak$N:
-	shr	\$4,$Zlo
-	and	\$0xf,$rem
-	mov	$Zhi,$tmp
-	shr	\$4,$Zhi
-	xor	8($Htbl,$nlo),$Zlo
-	shl	\$60,$tmp
-	xor	($Htbl,$nlo),$Zhi
-	and	\$0xf0,`&LB("$nhi")`
-	xor	($rem_4bit,$rem,8),$Zhi
-	mov	$Zlo,$rem
-	xor	$tmp,$Zlo
-
-	shr	\$4,$Zlo
-	and	\$0xf,$rem
-	mov	$Zhi,$tmp
-	shr	\$4,$Zhi
-	xor	8($Htbl,$nhi),$Zlo
-	shl	\$60,$tmp
-	xor	($Htbl,$nhi),$Zhi
-	xor	$tmp,$Zlo
-	xor	($rem_4bit,$rem,8),$Zhi
-
-	bswap	$Zlo
-	bswap	$Zhi
-___
-}}
-
-$code=<<___;
-.text
-
-.globl	gcm_gmult_4bit
-.type	gcm_gmult_4bit,\@function,2
-.align	16
-gcm_gmult_4bit:
-	push	%rbx
-	push	%rbp		# %rbp and %r12 are pushed exclusively in
-	push	%r12		# order to reuse Win64 exception handler...
-.Lgmult_prologue:
-
-	movzb	15($Xi),$Zlo
-	lea	.Lrem_4bit(%rip),$rem_4bit
-___
-	&loop	($Xi);
-$code.=<<___;
-	mov	$Zlo,8($Xi)
-	mov	$Zhi,($Xi)
-
-	mov	16(%rsp),%rbx
-	lea	24(%rsp),%rsp
-.Lgmult_epilogue:
-	ret
-.size	gcm_gmult_4bit,.-gcm_gmult_4bit
-___
-
-# per-function register layout
-$inp="%rdx";
-$len="%rcx";
-$rem_8bit=$rem_4bit;
-
-$code.=<<___;
-.globl	gcm_ghash_4bit
-.type	gcm_ghash_4bit,\@function,4
-.align	16
-gcm_ghash_4bit:
-	push	%rbx
-	push	%rbp
-	push	%r12
-	push	%r13
-	push	%r14
-	push	%r15
-	sub	\$280,%rsp
-.Lghash_prologue:
-	mov	$inp,%r14		# reassign couple of args
-	mov	$len,%r15
-___
-{ my $inp="%r14";
-  my $dat="%edx";
-  my $len="%r15";
-  my @nhi=("%ebx","%ecx");
-  my @rem=("%r12","%r13");
-  my $Hshr4="%rbp";
-
-	&sub	($Htbl,-128);		# size optimization
-	&lea	($Hshr4,"16+128(%rsp)");
-	{ my @lo =($nlo,$nhi);
-          my @hi =($Zlo,$Zhi);
-
-	  &xor	($dat,$dat);
-	  for ($i=0,$j=-2;$i<18;$i++,$j++) {
-	    &mov	("$j(%rsp)",&LB($dat))		if ($i>1);
-	    &or		($lo[0],$tmp)			if ($i>1);
-	    &mov	(&LB($dat),&LB($lo[1]))		if ($i>0 && $i<17);
-	    &shr	($lo[1],4)			if ($i>0 && $i<17);
-	    &mov	($tmp,$hi[1])			if ($i>0 && $i<17);
-	    &shr	($hi[1],4)			if ($i>0 && $i<17);
-	    &mov	("8*$j($Hshr4)",$hi[0])		if ($i>1);
-	    &mov	($hi[0],"16*$i+0-128($Htbl)")	if ($i<16);
-	    &shl	(&LB($dat),4)			if ($i>0 && $i<17);
-	    &mov	("8*$j-128($Hshr4)",$lo[0])	if ($i>1);
-	    &mov	($lo[0],"16*$i+8-128($Htbl)")	if ($i<16);
-	    &shl	($tmp,60)			if ($i>0 && $i<17);
-
-	    push	(@lo,shift(@lo));
-	    push	(@hi,shift(@hi));
-	  }
-	}
-	&add	($Htbl,-128);
-	&mov	($Zlo,"8($Xi)");
-	&mov	($Zhi,"0($Xi)");
-	&add	($len,$inp);		# pointer to the end of data
-	&lea	($rem_8bit,".Lrem_8bit(%rip)");
-	&jmp	(".Louter_loop");
-
-$code.=".align	16\n.Louter_loop:\n";
-	&xor	($Zhi,"($inp)");
-	&mov	("%rdx","8($inp)");
-	&lea	($inp,"16($inp)");
-	&xor	("%rdx",$Zlo);
-	&mov	("($Xi)",$Zhi);
-	&mov	("8($Xi)","%rdx");
-	&shr	("%rdx",32);
-
-	&xor	($nlo,$nlo);
-	&rol	($dat,8);
-	&mov	(&LB($nlo),&LB($dat));
-	&movz	($nhi[0],&LB($dat));
-	&shl	(&LB($nlo),4);
-	&shr	($nhi[0],4);
-
-	for ($j=11,$i=0;$i<15;$i++) {
-	    &rol	($dat,8);
-	    &xor	($Zlo,"8($Htbl,$nlo)")			if ($i>0);
-	    &xor	($Zhi,"($Htbl,$nlo)")			if ($i>0);
-	    &mov	($Zlo,"8($Htbl,$nlo)")			if ($i==0);
-	    &mov	($Zhi,"($Htbl,$nlo)")			if ($i==0);
-
-	    &mov	(&LB($nlo),&LB($dat));
-	    &xor	($Zlo,$tmp)				if ($i>0);
-	    &movzw	($rem[1],"($rem_8bit,$rem[1],2)")	if ($i>0);
-
-	    &movz	($nhi[1],&LB($dat));
-	    &shl	(&LB($nlo),4);
-	    &movzb	($rem[0],"(%rsp,$nhi[0])");
-
-	    &shr	($nhi[1],4)				if ($i<14);
-	    &and	($nhi[1],0xf0)				if ($i==14);
-	    &shl	($rem[1],48)				if ($i>0);
-	    &xor	($rem[0],$Zlo);
-
-	    &mov	($tmp,$Zhi);
-	    &xor	($Zhi,$rem[1])				if ($i>0);
-	    &shr	($Zlo,8);
-
-	    &movz	($rem[0],&LB($rem[0]));
-	    &mov	($dat,"$j($Xi)")			if (--$j%4==0);
-	    &shr	($Zhi,8);
-
-	    &xor	($Zlo,"-128($Hshr4,$nhi[0],8)");
-	    &shl	($tmp,56);
-	    &xor	($Zhi,"($Hshr4,$nhi[0],8)");
-
-	    unshift	(@nhi,pop(@nhi));		# "rotate" registers
-	    unshift	(@rem,pop(@rem));
-	}
-	&movzw	($rem[1],"($rem_8bit,$rem[1],2)");
-	&xor	($Zlo,"8($Htbl,$nlo)");
-	&xor	($Zhi,"($Htbl,$nlo)");
-
-	&shl	($rem[1],48);
-	&xor	($Zlo,$tmp);
-
-	&xor	($Zhi,$rem[1]);
-	&movz	($rem[0],&LB($Zlo));
-	&shr	($Zlo,4);
-
-	&mov	($tmp,$Zhi);
-	&shl	(&LB($rem[0]),4);
-	&shr	($Zhi,4);
-
-	&xor	($Zlo,"8($Htbl,$nhi[0])");
-	&movzw	($rem[0],"($rem_8bit,$rem[0],2)");
-	&shl	($tmp,60);
-
-	&xor	($Zhi,"($Htbl,$nhi[0])");
-	&xor	($Zlo,$tmp);
-	&shl	($rem[0],48);
-
-	&bswap	($Zlo);
-	&xor	($Zhi,$rem[0]);
-
-	&bswap	($Zhi);
-	&cmp	($inp,$len);
-	&jb	(".Louter_loop");
-}
-$code.=<<___;
-	mov	$Zlo,8($Xi)
-	mov	$Zhi,($Xi)
-
-	lea	280(%rsp),%rsi
-	mov	0(%rsi),%r15
-	mov	8(%rsi),%r14
-	mov	16(%rsi),%r13
-	mov	24(%rsi),%r12
-	mov	32(%rsi),%rbp
-	mov	40(%rsi),%rbx
-	lea	48(%rsi),%rsp
-.Lghash_epilogue:
-	ret
-.size	gcm_ghash_4bit,.-gcm_ghash_4bit
-___
-
-######################################################################
-# PCLMULQDQ version.
-
-@_4args=$win64?	("%rcx","%rdx","%r8", "%r9") :	# Win64 order
-		("%rdi","%rsi","%rdx","%rcx");	# Unix order
-
-($Xi,$Xhi)=("%xmm0","%xmm1");	$Hkey="%xmm2";
-($T1,$T2,$T3)=("%xmm3","%xmm4","%xmm5");
-
-sub clmul64x64_T2 {	# minimal register pressure
-my ($Xhi,$Xi,$Hkey,$modulo)=@_;
-
-$code.=<<___ if (!defined($modulo));
-	movdqa		$Xi,$Xhi		#
-	pshufd		\$0b01001110,$Xi,$T1
-	pshufd		\$0b01001110,$Hkey,$T2
-	pxor		$Xi,$T1			#
-	pxor		$Hkey,$T2
-___
-$code.=<<___;
-	pclmulqdq	\$0x00,$Hkey,$Xi	#######
-	pclmulqdq	\$0x11,$Hkey,$Xhi	#######
-	pclmulqdq	\$0x00,$T2,$T1		#######
-	pxor		$Xi,$T1			#
-	pxor		$Xhi,$T1		#
-
-	movdqa		$T1,$T2			#
-	psrldq		\$8,$T1
-	pslldq		\$8,$T2			#
-	pxor		$T1,$Xhi
-	pxor		$T2,$Xi			#
-___
-}
-
-sub reduction_alg9 {	# 17/13 times faster than Intel version
-my ($Xhi,$Xi) = @_;
-
-$code.=<<___;
-	# 1st phase
-	movdqa		$Xi,$T1			#
-	psllq		\$1,$Xi
-	pxor		$T1,$Xi			#
-	psllq		\$5,$Xi			#
-	pxor		$T1,$Xi			#
-	psllq		\$57,$Xi		#
-	movdqa		$Xi,$T2			#
-	pslldq		\$8,$Xi
-	psrldq		\$8,$T2			#	
-	pxor		$T1,$Xi
-	pxor		$T2,$Xhi		#
-
-	# 2nd phase
-	movdqa		$Xi,$T2
-	psrlq		\$5,$Xi
-	pxor		$T2,$Xi			#
-	psrlq		\$1,$Xi			#
-	pxor		$T2,$Xi			#
-	pxor		$Xhi,$T2
-	psrlq		\$1,$Xi			#
-	pxor		$T2,$Xi			#
-___
-}
-
-{ my ($Htbl,$Xip)=@_4args;
-
-$code.=<<___;
-.globl	gcm_init_clmul
-.type	gcm_init_clmul,\@abi-omnipotent
-.align	16
-gcm_init_clmul:
-	movdqu		($Xip),$Hkey
-	pshufd		\$0b01001110,$Hkey,$Hkey	# dword swap
-
-	# <<1 twist
-	pshufd		\$0b11111111,$Hkey,$T2	# broadcast uppermost dword
-	movdqa		$Hkey,$T1
-	psllq		\$1,$Hkey
-	pxor		$T3,$T3			#
-	psrlq		\$63,$T1
-	pcmpgtd		$T2,$T3			# broadcast carry bit
-	pslldq		\$8,$T1
-	por		$T1,$Hkey		# H<<=1
-
-	# magic reduction
-	pand		.L0x1c2_polynomial(%rip),$T3
-	pxor		$T3,$Hkey		# if(carry) H^=0x1c2_polynomial
-
-	# calculate H^2
-	movdqa		$Hkey,$Xi
-___
-	&clmul64x64_T2	($Xhi,$Xi,$Hkey);
-	&reduction_alg9	($Xhi,$Xi);
-$code.=<<___;
-	movdqu		$Hkey,($Htbl)		# save H
-	movdqu		$Xi,16($Htbl)		# save H^2
-	ret
-.size	gcm_init_clmul,.-gcm_init_clmul
-___
-}
-
-{ my ($Xip,$Htbl)=@_4args;
-
-$code.=<<___;
-.globl	gcm_gmult_clmul
-.type	gcm_gmult_clmul,\@abi-omnipotent
-.align	16
-gcm_gmult_clmul:
-	movdqu		($Xip),$Xi
-	movdqa		.Lbswap_mask(%rip),$T3
-	movdqu		($Htbl),$Hkey
-	pshufb		$T3,$Xi
-___
-	&clmul64x64_T2	($Xhi,$Xi,$Hkey);
-	&reduction_alg9	($Xhi,$Xi);
-$code.=<<___;
-	pshufb		$T3,$Xi
-	movdqu		$Xi,($Xip)
-	ret
-.size	gcm_gmult_clmul,.-gcm_gmult_clmul
-___
-}
-
-{ my ($Xip,$Htbl,$inp,$len)=@_4args;
-  my $Xn="%xmm6";
-  my $Xhn="%xmm7";
-  my $Hkey2="%xmm8";
-  my $T1n="%xmm9";
-  my $T2n="%xmm10";
-
-$code.=<<___;
-.globl	gcm_ghash_clmul
-.type	gcm_ghash_clmul,\@abi-omnipotent
-.align	16
-gcm_ghash_clmul:
-___
-$code.=<<___ if ($win64);
-.LSEH_begin_gcm_ghash_clmul:
-	# I can't trust assembler to use specific encoding:-(
-	.byte	0x48,0x83,0xec,0x58		#sub	\$0x58,%rsp
-	.byte	0x0f,0x29,0x34,0x24		#movaps	%xmm6,(%rsp)
-	.byte	0x0f,0x29,0x7c,0x24,0x10	#movdqa	%xmm7,0x10(%rsp)
-	.byte	0x44,0x0f,0x29,0x44,0x24,0x20	#movaps	%xmm8,0x20(%rsp)
-	.byte	0x44,0x0f,0x29,0x4c,0x24,0x30	#movaps	%xmm9,0x30(%rsp)
-	.byte	0x44,0x0f,0x29,0x54,0x24,0x40	#movaps	%xmm10,0x40(%rsp)
-___
-$code.=<<___;
-	movdqa		.Lbswap_mask(%rip),$T3
-
-	movdqu		($Xip),$Xi
-	movdqu		($Htbl),$Hkey
-	pshufb		$T3,$Xi
-
-	sub		\$0x10,$len
-	jz		.Lodd_tail
-
-	movdqu		16($Htbl),$Hkey2
-	#######
-	# Xi+2 =[H*(Ii+1 + Xi+1)] mod P =
-	#	[(H*Ii+1) + (H*Xi+1)] mod P =
-	#	[(H*Ii+1) + H^2*(Ii+Xi)] mod P
-	#
-	movdqu		($inp),$T1		# Ii
-	movdqu		16($inp),$Xn		# Ii+1
-	pshufb		$T3,$T1
-	pshufb		$T3,$Xn
-	pxor		$T1,$Xi			# Ii+Xi
-___
-	&clmul64x64_T2	($Xhn,$Xn,$Hkey);	# H*Ii+1
-$code.=<<___;
-	movdqa		$Xi,$Xhi		#
-	pshufd		\$0b01001110,$Xi,$T1
-	pshufd		\$0b01001110,$Hkey2,$T2
-	pxor		$Xi,$T1			#
-	pxor		$Hkey2,$T2
-
-	lea		32($inp),$inp		# i+=2
-	sub		\$0x20,$len
-	jbe		.Leven_tail
-
-.Lmod_loop:
-___
-	&clmul64x64_T2	($Xhi,$Xi,$Hkey2,1);	# H^2*(Ii+Xi)
-$code.=<<___;
-	movdqu		($inp),$T1		# Ii
-	pxor		$Xn,$Xi			# (H*Ii+1) + H^2*(Ii+Xi)
-	pxor		$Xhn,$Xhi
-
-	movdqu		16($inp),$Xn		# Ii+1
-	pshufb		$T3,$T1
-	pshufb		$T3,$Xn
-
-	movdqa		$Xn,$Xhn		#
-	pshufd		\$0b01001110,$Xn,$T1n
-	pshufd		\$0b01001110,$Hkey,$T2n
-	pxor		$Xn,$T1n		#
-	pxor		$Hkey,$T2n
-	 pxor		$T1,$Xhi		# "Ii+Xi", consume early
-
-	  movdqa	$Xi,$T1			# 1st phase
-	  psllq		\$1,$Xi
-	  pxor		$T1,$Xi			#
-	  psllq		\$5,$Xi			#
-	  pxor		$T1,$Xi			#
-	pclmulqdq	\$0x00,$Hkey,$Xn	#######
-	  psllq		\$57,$Xi		#
-	  movdqa	$Xi,$T2			#
-	  pslldq	\$8,$Xi
-	  psrldq	\$8,$T2			#	
-	  pxor		$T1,$Xi
-	  pxor		$T2,$Xhi		#
-
-	pclmulqdq	\$0x11,$Hkey,$Xhn	#######
-	  movdqa	$Xi,$T2			# 2nd phase
-	  psrlq		\$5,$Xi
-	  pxor		$T2,$Xi			#
-	  psrlq		\$1,$Xi			#
-	  pxor		$T2,$Xi			#
-	  pxor		$Xhi,$T2
-	  psrlq		\$1,$Xi			#
-	  pxor		$T2,$Xi			#
-
-	pclmulqdq	\$0x00,$T2n,$T1n	#######
-	 movdqa		$Xi,$Xhi		#
-	 pshufd		\$0b01001110,$Xi,$T1
-	 pshufd		\$0b01001110,$Hkey2,$T2
-	 pxor		$Xi,$T1			#
-	 pxor		$Hkey2,$T2
-
-	pxor		$Xn,$T1n		#
-	pxor		$Xhn,$T1n		#
-	movdqa		$T1n,$T2n		#
-	psrldq		\$8,$T1n
-	pslldq		\$8,$T2n		#
-	pxor		$T1n,$Xhn
-	pxor		$T2n,$Xn		#
-
-	lea		32($inp),$inp
-	sub		\$0x20,$len
-	ja		.Lmod_loop
-
-.Leven_tail:
-___
-	&clmul64x64_T2	($Xhi,$Xi,$Hkey2,1);	# H^2*(Ii+Xi)
-$code.=<<___;
-	pxor		$Xn,$Xi			# (H*Ii+1) + H^2*(Ii+Xi)
-	pxor		$Xhn,$Xhi
-___
-	&reduction_alg9	($Xhi,$Xi);
-$code.=<<___;
-	test		$len,$len
-	jnz		.Ldone
-
-.Lodd_tail:
-	movdqu		($inp),$T1		# Ii
-	pshufb		$T3,$T1
-	pxor		$T1,$Xi			# Ii+Xi
-___
-	&clmul64x64_T2	($Xhi,$Xi,$Hkey);	# H*(Ii+Xi)
-	&reduction_alg9	($Xhi,$Xi);
-$code.=<<___;
-.Ldone:
-	pshufb		$T3,$Xi
-	movdqu		$Xi,($Xip)
-___
-$code.=<<___ if ($win64);
-	movaps	(%rsp),%xmm6
-	movaps	0x10(%rsp),%xmm7
-	movaps	0x20(%rsp),%xmm8
-	movaps	0x30(%rsp),%xmm9
-	movaps	0x40(%rsp),%xmm10
-	add	\$0x58,%rsp
-___
-$code.=<<___;
-	ret
-.LSEH_end_gcm_ghash_clmul:
-.size	gcm_ghash_clmul,.-gcm_ghash_clmul
-___
-}
-
-$code.=<<___;
-.align	64
-.Lbswap_mask:
-	.byte	15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
-.L0x1c2_polynomial:
-	.byte	1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0xc2
-.align	64
-.type	.Lrem_4bit,\@object
-.Lrem_4bit:
-	.long	0,`0x0000<<16`,0,`0x1C20<<16`,0,`0x3840<<16`,0,`0x2460<<16`
-	.long	0,`0x7080<<16`,0,`0x6CA0<<16`,0,`0x48C0<<16`,0,`0x54E0<<16`
-	.long	0,`0xE100<<16`,0,`0xFD20<<16`,0,`0xD940<<16`,0,`0xC560<<16`
-	.long	0,`0x9180<<16`,0,`0x8DA0<<16`,0,`0xA9C0<<16`,0,`0xB5E0<<16`
-.type	.Lrem_8bit,\@object
-.Lrem_8bit:
-	.value	0x0000,0x01C2,0x0384,0x0246,0x0708,0x06CA,0x048C,0x054E
-	.value	0x0E10,0x0FD2,0x0D94,0x0C56,0x0918,0x08DA,0x0A9C,0x0B5E
-	.value	0x1C20,0x1DE2,0x1FA4,0x1E66,0x1B28,0x1AEA,0x18AC,0x196E
-	.value	0x1230,0x13F2,0x11B4,0x1076,0x1538,0x14FA,0x16BC,0x177E
-	.value	0x3840,0x3982,0x3BC4,0x3A06,0x3F48,0x3E8A,0x3CCC,0x3D0E
-	.value	0x3650,0x3792,0x35D4,0x3416,0x3158,0x309A,0x32DC,0x331E
-	.value	0x2460,0x25A2,0x27E4,0x2626,0x2368,0x22AA,0x20EC,0x212E
-	.value	0x2A70,0x2BB2,0x29F4,0x2836,0x2D78,0x2CBA,0x2EFC,0x2F3E
-	.value	0x7080,0x7142,0x7304,0x72C6,0x7788,0x764A,0x740C,0x75CE
-	.value	0x7E90,0x7F52,0x7D14,0x7CD6,0x7998,0x785A,0x7A1C,0x7BDE
-	.value	0x6CA0,0x6D62,0x6F24,0x6EE6,0x6BA8,0x6A6A,0x682C,0x69EE
-	.value	0x62B0,0x6372,0x6134,0x60F6,0x65B8,0x647A,0x663C,0x67FE
-	.value	0x48C0,0x4902,0x4B44,0x4A86,0x4FC8,0x4E0A,0x4C4C,0x4D8E
-	.value	0x46D0,0x4712,0x4554,0x4496,0x41D8,0x401A,0x425C,0x439E
-	.value	0x54E0,0x5522,0x5764,0x56A6,0x53E8,0x522A,0x506C,0x51AE
-	.value	0x5AF0,0x5B32,0x5974,0x58B6,0x5DF8,0x5C3A,0x5E7C,0x5FBE
-	.value	0xE100,0xE0C2,0xE284,0xE346,0xE608,0xE7CA,0xE58C,0xE44E
-	.value	0xEF10,0xEED2,0xEC94,0xED56,0xE818,0xE9DA,0xEB9C,0xEA5E
-	.value	0xFD20,0xFCE2,0xFEA4,0xFF66,0xFA28,0xFBEA,0xF9AC,0xF86E
-	.value	0xF330,0xF2F2,0xF0B4,0xF176,0xF438,0xF5FA,0xF7BC,0xF67E
-	.value	0xD940,0xD882,0xDAC4,0xDB06,0xDE48,0xDF8A,0xDDCC,0xDC0E
-	.value	0xD750,0xD692,0xD4D4,0xD516,0xD058,0xD19A,0xD3DC,0xD21E
-	.value	0xC560,0xC4A2,0xC6E4,0xC726,0xC268,0xC3AA,0xC1EC,0xC02E
-	.value	0xCB70,0xCAB2,0xC8F4,0xC936,0xCC78,0xCDBA,0xCFFC,0xCE3E
-	.value	0x9180,0x9042,0x9204,0x93C6,0x9688,0x974A,0x950C,0x94CE
-	.value	0x9F90,0x9E52,0x9C14,0x9DD6,0x9898,0x995A,0x9B1C,0x9ADE
-	.value	0x8DA0,0x8C62,0x8E24,0x8FE6,0x8AA8,0x8B6A,0x892C,0x88EE
-	.value	0x83B0,0x8272,0x8034,0x81F6,0x84B8,0x857A,0x873C,0x86FE
-	.value	0xA9C0,0xA802,0xAA44,0xAB86,0xAEC8,0xAF0A,0xAD4C,0xAC8E
-	.value	0xA7D0,0xA612,0xA454,0xA596,0xA0D8,0xA11A,0xA35C,0xA29E
-	.value	0xB5E0,0xB422,0xB664,0xB7A6,0xB2E8,0xB32A,0xB16C,0xB0AE
-	.value	0xBBF0,0xBA32,0xB874,0xB9B6,0xBCF8,0xBD3A,0xBF7C,0xBEBE
-
-.asciz	"GHASH for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
-.align	64
-___
-
-# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
-#		CONTEXT *context,DISPATCHER_CONTEXT *disp)
-if ($win64) {
-$rec="%rcx";
-$frame="%rdx";
-$context="%r8";
-$disp="%r9";
-
-$code.=<<___;
-.extern	__imp_RtlVirtualUnwind
-.type	se_handler,\@abi-omnipotent
-.align	16
-se_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	.Lin_prologue
-
-	mov	152($context),%rax	# pull context->Rsp
-
-	mov	4(%r11),%r10d		# HandlerData[1]
-	lea	(%rsi,%r10),%r10	# epilogue label
-	cmp	%r10,%rbx		# context->Rip>=epilogue label
-	jae	.Lin_prologue
-
-	lea	24(%rax),%rax		# adjust "rsp"
-
-	mov	-8(%rax),%rbx
-	mov	-16(%rax),%rbp
-	mov	-24(%rax),%r12
-	mov	%rbx,144($context)	# restore context->Rbx
-	mov	%rbp,160($context)	# restore context->Rbp
-	mov	%r12,216($context)	# restore context->R12
-
-.Lin_prologue:
-	mov	8(%rax),%rdi
-	mov	16(%rax),%rsi
-	mov	%rax,152($context)	# restore context->Rsp
-	mov	%rsi,168($context)	# restore context->Rsi
-	mov	%rdi,176($context)	# restore context->Rdi
-
-	mov	40($disp),%rdi		# disp->ContextRecord
-	mov	$context,%rsi		# context
-	mov	\$`1232/8`,%ecx		# sizeof(CONTEXT)
-	.long	0xa548f3fc		# cld; rep movsq
-
-	mov	$disp,%rsi
-	xor	%rcx,%rcx		# arg1, UNW_FLAG_NHANDLER
-	mov	8(%rsi),%rdx		# arg2, disp->ImageBase
-	mov	0(%rsi),%r8		# arg3, disp->ControlPc
-	mov	16(%rsi),%r9		# arg4, disp->FunctionEntry
-	mov	40(%rsi),%r10		# disp->ContextRecord
-	lea	56(%rsi),%r11		# &disp->HandlerData
-	lea	24(%rsi),%r12		# &disp->EstablisherFrame
-	mov	%r10,32(%rsp)		# arg5
-	mov	%r11,40(%rsp)		# arg6
-	mov	%r12,48(%rsp)		# arg7
-	mov	%rcx,56(%rsp)		# arg8, (NULL)
-	call	*__imp_RtlVirtualUnwind(%rip)
-
-	mov	\$1,%eax		# ExceptionContinueSearch
-	add	\$64,%rsp
-	popfq
-	pop	%r15
-	pop	%r14
-	pop	%r13
-	pop	%r12
-	pop	%rbp
-	pop	%rbx
-	pop	%rdi
-	pop	%rsi
-	ret
-.size	se_handler,.-se_handler
-
-.section	.pdata
-.align	4
-	.rva	.LSEH_begin_gcm_gmult_4bit
-	.rva	.LSEH_end_gcm_gmult_4bit
-	.rva	.LSEH_info_gcm_gmult_4bit
-
-	.rva	.LSEH_begin_gcm_ghash_4bit
-	.rva	.LSEH_end_gcm_ghash_4bit
-	.rva	.LSEH_info_gcm_ghash_4bit
-
-	.rva	.LSEH_begin_gcm_ghash_clmul
-	.rva	.LSEH_end_gcm_ghash_clmul
-	.rva	.LSEH_info_gcm_ghash_clmul
-
-.section	.xdata
-.align	8
-.LSEH_info_gcm_gmult_4bit:
-	.byte	9,0,0,0
-	.rva	se_handler
-	.rva	.Lgmult_prologue,.Lgmult_epilogue	# HandlerData
-.LSEH_info_gcm_ghash_4bit:
-	.byte	9,0,0,0
-	.rva	se_handler
-	.rva	.Lghash_prologue,.Lghash_epilogue	# HandlerData
-.LSEH_info_gcm_ghash_clmul:
-	.byte	0x01,0x1f,0x0b,0x00
-	.byte	0x1f,0xa8,0x04,0x00	#movaps 0x40(rsp),xmm10
-	.byte	0x19,0x98,0x03,0x00	#movaps 0x30(rsp),xmm9
-	.byte	0x13,0x88,0x02,0x00	#movaps 0x20(rsp),xmm8
-	.byte	0x0d,0x78,0x01,0x00	#movaps 0x10(rsp),xmm7
-	.byte	0x08,0x68,0x00,0x00	#movaps (rsp),xmm6
-	.byte	0x04,0xa2,0x00,0x00	#sub	rsp,0x58
-___
-}
-
-$code =~ s/\`([^\`]*)\`/eval($1)/gem;
-
-print $code;
-
-close STDOUT;