From 3e4d8f433239c40311037616b1b8833a06651ae0 Mon Sep 17 00:00:00 2001
From: Arne Schwabe <arne@rfc2549.org>
Date: Mon, 16 Apr 2012 19:21:14 +0200
Subject: Initial import

---
 openssl/crypto/md5/asm/md5-x86_64.pl | 369 +++++++++++++++++++++++++++++++++++
 1 file changed, 369 insertions(+)
 create mode 100755 openssl/crypto/md5/asm/md5-x86_64.pl

(limited to 'openssl/crypto/md5/asm/md5-x86_64.pl')

diff --git a/openssl/crypto/md5/asm/md5-x86_64.pl b/openssl/crypto/md5/asm/md5-x86_64.pl
new file mode 100755
index 00000000..86788543
--- /dev/null
+++ b/openssl/crypto/md5/asm/md5-x86_64.pl
@@ -0,0 +1,369 @@
+#!/usr/bin/perl -w
+#
+# MD5 optimized for AMD64.
+#
+# Author: Marc Bevand <bevand_m (at) epita.fr>
+# Licence: I hereby disclaim the copyright on this code and place it
+# in the public domain.
+#
+
+use strict;
+
+my $code;
+
+# round1_step() does:
+#   dst = x + ((dst + F(x,y,z) + X[k] + T_i) <<< s)
+#   %r10d = X[k_next]
+#   %r11d = z' (copy of z for the next step)
+# Each round1_step() takes about 5.3 clocks (9 instructions, 1.7 IPC)
+sub round1_step
+{
+    my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $code .= " mov	0*4(%rsi),	%r10d		/* (NEXT STEP) X[0] */\n" if ($pos == -1);
+    $code .= " mov	%edx,		%r11d		/* (NEXT STEP) z' = %edx */\n" if ($pos == -1);
+    $code .= <<EOF;
+	xor	$y,		%r11d		/* y ^ ... */
+	lea	$T_i($dst,%r10d),$dst		/* Const + dst + ... */
+	and	$x,		%r11d		/* x & ... */
+	xor	$z,		%r11d		/* z ^ ... */
+	mov	$k_next*4(%rsi),%r10d		/* (NEXT STEP) X[$k_next] */
+	add	%r11d,		$dst		/* dst += ... */
+	rol	\$$s,		$dst		/* dst <<< s */
+	mov	$y,		%r11d		/* (NEXT STEP) z' = $y */
+	add	$x,		$dst		/* dst += x */
+EOF
+}
+
+# round2_step() does:
+#   dst = x + ((dst + G(x,y,z) + X[k] + T_i) <<< s)
+#   %r10d = X[k_next]
+#   %r11d = z' (copy of z for the next step)
+#   %r12d = z' (copy of z for the next step)
+# Each round2_step() takes about 5.4 clocks (11 instructions, 2.0 IPC)
+sub round2_step
+{
+    my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $code .= " mov	1*4(%rsi),	%r10d		/* (NEXT STEP) X[1] */\n" if ($pos == -1);
+    $code .= " mov	%edx,		%r11d		/* (NEXT STEP) z' = %edx */\n" if ($pos == -1);
+    $code .= " mov	%edx,		%r12d		/* (NEXT STEP) z' = %edx */\n" if ($pos == -1);
+    $code .= <<EOF;
+	not	%r11d				/* not z */
+	lea	$T_i($dst,%r10d),$dst		/* Const + dst + ... */
+	and	$x,		%r12d		/* x & z */
+	and	$y,		%r11d		/* y & (not z) */
+	mov	$k_next*4(%rsi),%r10d		/* (NEXT STEP) X[$k_next] */
+	or	%r11d,		%r12d		/* (y & (not z)) | (x & z) */
+	mov	$y,		%r11d		/* (NEXT STEP) z' = $y */
+	add	%r12d,		$dst		/* dst += ... */
+	mov	$y,		%r12d		/* (NEXT STEP) z' = $y */
+	rol	\$$s,		$dst		/* dst <<< s */
+	add	$x,		$dst		/* dst += x */
+EOF
+}
+
+# round3_step() does:
+#   dst = x + ((dst + H(x,y,z) + X[k] + T_i) <<< s)
+#   %r10d = X[k_next]
+#   %r11d = y' (copy of y for the next step)
+# Each round3_step() takes about 4.2 clocks (8 instructions, 1.9 IPC)
+sub round3_step
+{
+    my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $code .= " mov	5*4(%rsi),	%r10d		/* (NEXT STEP) X[5] */\n" if ($pos == -1);
+    $code .= " mov	%ecx,		%r11d		/* (NEXT STEP) y' = %ecx */\n" if ($pos == -1);
+    $code .= <<EOF;
+	lea	$T_i($dst,%r10d),$dst		/* Const + dst + ... */
+	mov	$k_next*4(%rsi),%r10d		/* (NEXT STEP) X[$k_next] */
+	xor	$z,		%r11d		/* z ^ ... */
+	xor	$x,		%r11d		/* x ^ ... */
+	add	%r11d,		$dst		/* dst += ... */
+	rol	\$$s,		$dst		/* dst <<< s */
+	mov	$x,		%r11d		/* (NEXT STEP) y' = $x */
+	add	$x,		$dst		/* dst += x */
+EOF
+}
+
+# round4_step() does:
+#   dst = x + ((dst + I(x,y,z) + X[k] + T_i) <<< s)
+#   %r10d = X[k_next]
+#   %r11d = not z' (copy of not z for the next step)
+# Each round4_step() takes about 5.2 clocks (9 instructions, 1.7 IPC)
+sub round4_step
+{
+    my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $code .= " mov	0*4(%rsi),	%r10d		/* (NEXT STEP) X[0] */\n" if ($pos == -1);
+    $code .= " mov	\$0xffffffff,	%r11d\n" if ($pos == -1);
+    $code .= " xor	%edx,		%r11d		/* (NEXT STEP) not z' = not %edx*/\n"
+    if ($pos == -1);
+    $code .= <<EOF;
+	lea	$T_i($dst,%r10d),$dst		/* Const + dst + ... */
+	or	$x,		%r11d		/* x | ... */
+	xor	$y,		%r11d		/* y ^ ... */
+	add	%r11d,		$dst		/* dst += ... */
+	mov	$k_next*4(%rsi),%r10d		/* (NEXT STEP) X[$k_next] */
+	mov	\$0xffffffff,	%r11d
+	rol	\$$s,		$dst		/* dst <<< s */
+	xor	$y,		%r11d		/* (NEXT STEP) not z' = not $y */
+	add	$x,		$dst		/* dst += x */
+EOF
+}
+
+my $flavour = shift;
+my $output  = shift;
+if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
+
+my $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; my $dir=$1; my $xlate;
+( $xlate="${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";
+
+no warnings qw(uninitialized);
+open STDOUT,"| $^X $xlate $flavour $output";
+
+$code .= <<EOF;
+.text
+.align 16
+
+.globl md5_block_asm_data_order
+.type md5_block_asm_data_order,\@function,3
+md5_block_asm_data_order:
+	push	%rbp
+	push	%rbx
+	push	%r12
+	push	%r14
+	push	%r15
+.Lprologue:
+
+	# rdi = arg #1 (ctx, MD5_CTX pointer)
+	# rsi = arg #2 (ptr, data pointer)
+	# rdx = arg #3 (nbr, number of 16-word blocks to process)
+	mov	%rdi,		%rbp	# rbp = ctx
+	shl	\$6,		%rdx	# rdx = nbr in bytes
+	lea	(%rsi,%rdx),	%rdi	# rdi = end
+	mov	0*4(%rbp),	%eax	# eax = ctx->A
+	mov	1*4(%rbp),	%ebx	# ebx = ctx->B
+	mov	2*4(%rbp),	%ecx	# ecx = ctx->C
+	mov	3*4(%rbp),	%edx	# edx = ctx->D
+	# end is 'rdi'
+	# ptr is 'rsi'
+	# A is 'eax'
+	# B is 'ebx'
+	# C is 'ecx'
+	# D is 'edx'
+
+	cmp	%rdi,		%rsi		# cmp end with ptr
+	je	.Lend				# jmp if ptr == end
+
+	# BEGIN of loop over 16-word blocks
+.Lloop:	# save old values of A, B, C, D
+	mov	%eax,		%r8d
+	mov	%ebx,		%r9d
+	mov	%ecx,		%r14d
+	mov	%edx,		%r15d
+EOF
+round1_step(-1,'%eax','%ebx','%ecx','%edx', '1','0xd76aa478', '7');
+round1_step( 0,'%edx','%eax','%ebx','%ecx', '2','0xe8c7b756','12');
+round1_step( 0,'%ecx','%edx','%eax','%ebx', '3','0x242070db','17');
+round1_step( 0,'%ebx','%ecx','%edx','%eax', '4','0xc1bdceee','22');
+round1_step( 0,'%eax','%ebx','%ecx','%edx', '5','0xf57c0faf', '7');
+round1_step( 0,'%edx','%eax','%ebx','%ecx', '6','0x4787c62a','12');
+round1_step( 0,'%ecx','%edx','%eax','%ebx', '7','0xa8304613','17');
+round1_step( 0,'%ebx','%ecx','%edx','%eax', '8','0xfd469501','22');
+round1_step( 0,'%eax','%ebx','%ecx','%edx', '9','0x698098d8', '7');
+round1_step( 0,'%edx','%eax','%ebx','%ecx','10','0x8b44f7af','12');
+round1_step( 0,'%ecx','%edx','%eax','%ebx','11','0xffff5bb1','17');
+round1_step( 0,'%ebx','%ecx','%edx','%eax','12','0x895cd7be','22');
+round1_step( 0,'%eax','%ebx','%ecx','%edx','13','0x6b901122', '7');
+round1_step( 0,'%edx','%eax','%ebx','%ecx','14','0xfd987193','12');
+round1_step( 0,'%ecx','%edx','%eax','%ebx','15','0xa679438e','17');
+round1_step( 1,'%ebx','%ecx','%edx','%eax', '0','0x49b40821','22');
+
+round2_step(-1,'%eax','%ebx','%ecx','%edx', '6','0xf61e2562', '5');
+round2_step( 0,'%edx','%eax','%ebx','%ecx','11','0xc040b340', '9');
+round2_step( 0,'%ecx','%edx','%eax','%ebx', '0','0x265e5a51','14');
+round2_step( 0,'%ebx','%ecx','%edx','%eax', '5','0xe9b6c7aa','20');
+round2_step( 0,'%eax','%ebx','%ecx','%edx','10','0xd62f105d', '5');
+round2_step( 0,'%edx','%eax','%ebx','%ecx','15', '0x2441453', '9');
+round2_step( 0,'%ecx','%edx','%eax','%ebx', '4','0xd8a1e681','14');
+round2_step( 0,'%ebx','%ecx','%edx','%eax', '9','0xe7d3fbc8','20');
+round2_step( 0,'%eax','%ebx','%ecx','%edx','14','0x21e1cde6', '5');
+round2_step( 0,'%edx','%eax','%ebx','%ecx', '3','0xc33707d6', '9');
+round2_step( 0,'%ecx','%edx','%eax','%ebx', '8','0xf4d50d87','14');
+round2_step( 0,'%ebx','%ecx','%edx','%eax','13','0x455a14ed','20');
+round2_step( 0,'%eax','%ebx','%ecx','%edx', '2','0xa9e3e905', '5');
+round2_step( 0,'%edx','%eax','%ebx','%ecx', '7','0xfcefa3f8', '9');
+round2_step( 0,'%ecx','%edx','%eax','%ebx','12','0x676f02d9','14');
+round2_step( 1,'%ebx','%ecx','%edx','%eax', '0','0x8d2a4c8a','20');
+
+round3_step(-1,'%eax','%ebx','%ecx','%edx', '8','0xfffa3942', '4');
+round3_step( 0,'%edx','%eax','%ebx','%ecx','11','0x8771f681','11');
+round3_step( 0,'%ecx','%edx','%eax','%ebx','14','0x6d9d6122','16');
+round3_step( 0,'%ebx','%ecx','%edx','%eax', '1','0xfde5380c','23');
+round3_step( 0,'%eax','%ebx','%ecx','%edx', '4','0xa4beea44', '4');
+round3_step( 0,'%edx','%eax','%ebx','%ecx', '7','0x4bdecfa9','11');
+round3_step( 0,'%ecx','%edx','%eax','%ebx','10','0xf6bb4b60','16');
+round3_step( 0,'%ebx','%ecx','%edx','%eax','13','0xbebfbc70','23');
+round3_step( 0,'%eax','%ebx','%ecx','%edx', '0','0x289b7ec6', '4');
+round3_step( 0,'%edx','%eax','%ebx','%ecx', '3','0xeaa127fa','11');
+round3_step( 0,'%ecx','%edx','%eax','%ebx', '6','0xd4ef3085','16');
+round3_step( 0,'%ebx','%ecx','%edx','%eax', '9', '0x4881d05','23');
+round3_step( 0,'%eax','%ebx','%ecx','%edx','12','0xd9d4d039', '4');
+round3_step( 0,'%edx','%eax','%ebx','%ecx','15','0xe6db99e5','11');
+round3_step( 0,'%ecx','%edx','%eax','%ebx', '2','0x1fa27cf8','16');
+round3_step( 1,'%ebx','%ecx','%edx','%eax', '0','0xc4ac5665','23');
+
+round4_step(-1,'%eax','%ebx','%ecx','%edx', '7','0xf4292244', '6');
+round4_step( 0,'%edx','%eax','%ebx','%ecx','14','0x432aff97','10');
+round4_step( 0,'%ecx','%edx','%eax','%ebx', '5','0xab9423a7','15');
+round4_step( 0,'%ebx','%ecx','%edx','%eax','12','0xfc93a039','21');
+round4_step( 0,'%eax','%ebx','%ecx','%edx', '3','0x655b59c3', '6');
+round4_step( 0,'%edx','%eax','%ebx','%ecx','10','0x8f0ccc92','10');
+round4_step( 0,'%ecx','%edx','%eax','%ebx', '1','0xffeff47d','15');
+round4_step( 0,'%ebx','%ecx','%edx','%eax', '8','0x85845dd1','21');
+round4_step( 0,'%eax','%ebx','%ecx','%edx','15','0x6fa87e4f', '6');
+round4_step( 0,'%edx','%eax','%ebx','%ecx', '6','0xfe2ce6e0','10');
+round4_step( 0,'%ecx','%edx','%eax','%ebx','13','0xa3014314','15');
+round4_step( 0,'%ebx','%ecx','%edx','%eax', '4','0x4e0811a1','21');
+round4_step( 0,'%eax','%ebx','%ecx','%edx','11','0xf7537e82', '6');
+round4_step( 0,'%edx','%eax','%ebx','%ecx', '2','0xbd3af235','10');
+round4_step( 0,'%ecx','%edx','%eax','%ebx', '9','0x2ad7d2bb','15');
+round4_step( 1,'%ebx','%ecx','%edx','%eax', '0','0xeb86d391','21');
+$code .= <<EOF;
+	# add old values of A, B, C, D
+	add	%r8d,	%eax
+	add	%r9d,	%ebx
+	add	%r14d,	%ecx
+	add	%r15d,	%edx
+
+	# loop control
+	add	\$64,		%rsi		# ptr += 64
+	cmp	%rdi,		%rsi		# cmp end with ptr
+	jb	.Lloop				# jmp if ptr < end
+	# END of loop over 16-word blocks
+
+.Lend:
+	mov	%eax,		0*4(%rbp)	# ctx->A = A
+	mov	%ebx,		1*4(%rbp)	# ctx->B = B
+	mov	%ecx,		2*4(%rbp)	# ctx->C = C
+	mov	%edx,		3*4(%rbp)	# ctx->D = D
+
+	mov	(%rsp),%r15
+	mov	8(%rsp),%r14
+	mov	16(%rsp),%r12
+	mov	24(%rsp),%rbx
+	mov	32(%rsp),%rbp
+	add	\$40,%rsp
+.Lepilogue:
+	ret
+.size md5_block_asm_data_order,.-md5_block_asm_data_order
+EOF
+
+# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
+#		CONTEXT *context,DISPATCHER_CONTEXT *disp)
+if ($win64) {
+my $rec="%rcx";
+my $frame="%rdx";
+my $context="%r8";
+my $disp="%r9";
+
+$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
+
+	lea	.Lprologue(%rip),%r10
+	cmp	%r10,%rbx		# context->Rip<.Lprologue
+	jb	.Lin_prologue
+
+	mov	152($context),%rax	# pull context->Rsp
+
+	lea	.Lepilogue(%rip),%r10
+	cmp	%r10,%rbx		# context->Rip>=.Lepilogue
+	jae	.Lin_prologue
+
+	lea	40(%rax),%rax
+
+	mov	-8(%rax),%rbp
+	mov	-16(%rax),%rbx
+	mov	-24(%rax),%r12
+	mov	-32(%rax),%r14
+	mov	-40(%rax),%r15
+	mov	%rbx,144($context)	# restore context->Rbx
+	mov	%rbp,160($context)	# restore context->Rbp
+	mov	%r12,216($context)	# restore context->R12
+	mov	%r14,232($context)	# restore context->R14
+	mov	%r15,240($context)	# restore context->R15
+
+.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	\$154,%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_md5_block_asm_data_order
+	.rva	.LSEH_end_md5_block_asm_data_order
+	.rva	.LSEH_info_md5_block_asm_data_order
+
+.section	.xdata
+.align	8
+.LSEH_info_md5_block_asm_data_order:
+	.byte	9,0,0,0
+	.rva	se_handler
+___
+}
+
+print $code;
+
+close STDOUT;
-- 
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