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openssl/crypto/sha/asm/keccak1600-x86_64.pl

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#!/usr/bin/env perl
# Copyright 2017-2020 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the Apache License 2.0 (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
#
# ====================================================================
# 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/.
# ====================================================================
#
# Keccak-1600 for x86_64.
#
# June 2017.
#
# Below code is [lane complementing] KECCAK_2X implementation (see
# sha/keccak1600.c) with C[5] and D[5] held in register bank. Though
# instead of actually unrolling the loop pair-wise I simply flip
# pointers to T[][] and A[][] at the end of round. Since number of
# rounds is even, last round writes to A[][] and everything works out.
# How does it compare to x86_64 assembly module in Keccak Code Package?
# Depending on processor it's either as fast or faster by up to 15%...
#
########################################################################
# Numbers are cycles per processed byte out of large message.
#
# r=1088(*)
#
# P4 25.8
# Core 2 12.9
# Westmere 13.7
# Sandy Bridge 12.9(**)
# Haswell 9.6
# Skylake 9.4
# Silvermont 22.8
# Goldmont 15.8
# VIA Nano 17.3
# Sledgehammer 13.3
# Bulldozer 16.5
# Ryzen 8.8
#
# (*) Corresponds to SHA3-256. Improvement over compiler-generate
# varies a lot, most common coefficient is 15% in comparison to
# gcc-5.x, 50% for gcc-4.x, 90% for gcc-3.x.
# (**) Sandy Bridge has broken rotate instruction. Performance can be
# improved by 14% by replacing rotates with double-precision
# shift with same register as source and destination.
# $output is the last argument if it looks like a file (it has an extension)
# $flavour is the first argument if it doesn't look like a file
$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
$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\""
or die "can't call $xlate: $!";
*STDOUT=*OUT;
my @A = map([ 8*$_-100, 8*($_+1)-100, 8*($_+2)-100,
8*($_+3)-100, 8*($_+4)-100 ], (0,5,10,15,20));
my @C = ("%rax","%rbx","%rcx","%rdx","%rbp");
my @D = map("%r$_",(8..12));
my @T = map("%r$_",(13..14));
my $iotas = "%r15";
my @rhotates = ([ 0, 1, 62, 28, 27 ],
[ 36, 44, 6, 55, 20 ],
[ 3, 10, 43, 25, 39 ],
[ 41, 45, 15, 21, 8 ],
[ 18, 2, 61, 56, 14 ]);
$code.=<<___;
.text
.type __KeccakF1600,\@abi-omnipotent
.align 32
__KeccakF1600:
.cfi_startproc
mov $A[4][0](%rdi),@C[0]
mov $A[4][1](%rdi),@C[1]
mov $A[4][2](%rdi),@C[2]
mov $A[4][3](%rdi),@C[3]
mov $A[4][4](%rdi),@C[4]
jmp .Loop
.align 32
.Loop:
mov $A[0][0](%rdi),@D[0]
mov $A[1][1](%rdi),@D[1]
mov $A[2][2](%rdi),@D[2]
mov $A[3][3](%rdi),@D[3]
xor $A[0][2](%rdi),@C[2]
xor $A[0][3](%rdi),@C[3]
xor @D[0], @C[0]
xor $A[0][1](%rdi),@C[1]
xor $A[1][2](%rdi),@C[2]
xor $A[1][0](%rdi),@C[0]
mov @C[4],@D[4]
xor $A[0][4](%rdi),@C[4]
xor @D[2], @C[2]
xor $A[2][0](%rdi),@C[0]
xor $A[1][3](%rdi),@C[3]
xor @D[1], @C[1]
xor $A[1][4](%rdi),@C[4]
xor $A[3][2](%rdi),@C[2]
xor $A[3][0](%rdi),@C[0]
xor $A[2][3](%rdi),@C[3]
xor $A[2][1](%rdi),@C[1]
xor $A[2][4](%rdi),@C[4]
mov @C[2],@T[0]
rol \$1,@C[2]
xor @C[0],@C[2] # D[1] = ROL64(C[2], 1) ^ C[0]
xor @D[3], @C[3]
rol \$1,@C[0]
xor @C[3],@C[0] # D[4] = ROL64(C[0], 1) ^ C[3]
xor $A[3][1](%rdi),@C[1]
rol \$1,@C[3]
xor @C[1],@C[3] # D[2] = ROL64(C[3], 1) ^ C[1]
xor $A[3][4](%rdi),@C[4]
rol \$1,@C[1]
xor @C[4],@C[1] # D[0] = ROL64(C[1], 1) ^ C[4]
rol \$1,@C[4]
xor @T[0],@C[4] # D[3] = ROL64(C[4], 1) ^ C[2]
___
(@D[0..4], @C) = (@C[1..4,0], @D);
$code.=<<___;
xor @D[1],@C[1]
xor @D[2],@C[2]
rol \$$rhotates[1][1],@C[1]
xor @D[3],@C[3]
xor @D[4],@C[4]
rol \$$rhotates[2][2],@C[2]
xor @D[0],@C[0]
mov @C[1],@T[0]
rol \$$rhotates[3][3],@C[3]
or @C[2],@C[1]
xor @C[0],@C[1] # C[0] ^ ( C[1] | C[2])
rol \$$rhotates[4][4],@C[4]
xor ($iotas),@C[1]
lea 8($iotas),$iotas
mov @C[4],@T[1]
and @C[3],@C[4]
mov @C[1],$A[0][0](%rsi) # R[0][0] = C[0] ^ ( C[1] | C[2]) ^ iotas[i]
xor @C[2],@C[4] # C[2] ^ ( C[4] & C[3])
not @C[2]
mov @C[4],$A[0][2](%rsi) # R[0][2] = C[2] ^ ( C[4] & C[3])
or @C[3],@C[2]
mov $A[4][2](%rdi),@C[4]
xor @T[0],@C[2] # C[1] ^ (~C[2] | C[3])
mov @C[2],$A[0][1](%rsi) # R[0][1] = C[1] ^ (~C[2] | C[3])
and @C[0],@T[0]
mov $A[1][4](%rdi),@C[1]
xor @T[1],@T[0] # C[4] ^ ( C[1] & C[0])
mov $A[2][0](%rdi),@C[2]
mov @T[0],$A[0][4](%rsi) # R[0][4] = C[4] ^ ( C[1] & C[0])
or @C[0],@T[1]
mov $A[0][3](%rdi),@C[0]
xor @C[3],@T[1] # C[3] ^ ( C[4] | C[0])
mov $A[3][1](%rdi),@C[3]
mov @T[1],$A[0][3](%rsi) # R[0][3] = C[3] ^ ( C[4] | C[0])
xor @D[3],@C[0]
xor @D[2],@C[4]
rol \$$rhotates[0][3],@C[0]
xor @D[1],@C[3]
xor @D[4],@C[1]
rol \$$rhotates[4][2],@C[4]
rol \$$rhotates[3][1],@C[3]
xor @D[0],@C[2]
rol \$$rhotates[1][4],@C[1]
mov @C[0],@T[0]
or @C[4],@C[0]
rol \$$rhotates[2][0],@C[2]
xor @C[3],@C[0] # C[3] ^ (C[0] | C[4])
mov @C[0],$A[1][3](%rsi) # R[1][3] = C[3] ^ (C[0] | C[4])
mov @C[1],@T[1]
and @T[0],@C[1]
mov $A[0][1](%rdi),@C[0]
xor @C[4],@C[1] # C[4] ^ (C[1] & C[0])
not @C[4]
mov @C[1],$A[1][4](%rsi) # R[1][4] = C[4] ^ (C[1] & C[0])
or @C[3],@C[4]
mov $A[1][2](%rdi),@C[1]
xor @C[2],@C[4] # C[2] ^ (~C[4] | C[3])
mov @C[4],$A[1][2](%rsi) # R[1][2] = C[2] ^ (~C[4] | C[3])
and @C[2],@C[3]
mov $A[4][0](%rdi),@C[4]
xor @T[1],@C[3] # C[1] ^ (C[3] & C[2])
mov @C[3],$A[1][1](%rsi) # R[1][1] = C[1] ^ (C[3] & C[2])
or @C[2],@T[1]
mov $A[2][3](%rdi),@C[2]
xor @T[0],@T[1] # C[0] ^ (C[1] | C[2])
mov $A[3][4](%rdi),@C[3]
mov @T[1],$A[1][0](%rsi) # R[1][0] = C[0] ^ (C[1] | C[2])
xor @D[3],@C[2]
xor @D[4],@C[3]
rol \$$rhotates[2][3],@C[2]
xor @D[2],@C[1]
rol \$$rhotates[3][4],@C[3]
xor @D[0],@C[4]
rol \$$rhotates[1][2],@C[1]
xor @D[1],@C[0]
rol \$$rhotates[4][0],@C[4]
mov @C[2],@T[0]
and @C[3],@C[2]
rol \$$rhotates[0][1],@C[0]
not @C[3]
xor @C[1],@C[2] # C[1] ^ ( C[2] & C[3])
mov @C[2],$A[2][1](%rsi) # R[2][1] = C[1] ^ ( C[2] & C[3])
mov @C[4],@T[1]
and @C[3],@C[4]
mov $A[2][1](%rdi),@C[2]
xor @T[0],@C[4] # C[2] ^ ( C[4] & ~C[3])
mov @C[4],$A[2][2](%rsi) # R[2][2] = C[2] ^ ( C[4] & ~C[3])
or @C[1],@T[0]
mov $A[4][3](%rdi),@C[4]
xor @C[0],@T[0] # C[0] ^ ( C[2] | C[1])
mov @T[0],$A[2][0](%rsi) # R[2][0] = C[0] ^ ( C[2] | C[1])
and @C[0],@C[1]
xor @T[1],@C[1] # C[4] ^ ( C[1] & C[0])
mov @C[1],$A[2][4](%rsi) # R[2][4] = C[4] ^ ( C[1] & C[0])
or @C[0],@T[1]
mov $A[1][0](%rdi),@C[1]
xor @C[3],@T[1] # ~C[3] ^ ( C[0] | C[4])
mov $A[3][2](%rdi),@C[3]
mov @T[1],$A[2][3](%rsi) # R[2][3] = ~C[3] ^ ( C[0] | C[4])
mov $A[0][4](%rdi),@C[0]
xor @D[1],@C[2]
xor @D[2],@C[3]
rol \$$rhotates[2][1],@C[2]
xor @D[0],@C[1]
rol \$$rhotates[3][2],@C[3]
xor @D[3],@C[4]
rol \$$rhotates[1][0],@C[1]
xor @D[4],@C[0]
rol \$$rhotates[4][3],@C[4]
mov @C[2],@T[0]
or @C[3],@C[2]
rol \$$rhotates[0][4],@C[0]
not @C[3]
xor @C[1],@C[2] # C[1] ^ ( C[2] | C[3])
mov @C[2],$A[3][1](%rsi) # R[3][1] = C[1] ^ ( C[2] | C[3])
mov @C[4],@T[1]
or @C[3],@C[4]
xor @T[0],@C[4] # C[2] ^ ( C[4] | ~C[3])
mov @C[4],$A[3][2](%rsi) # R[3][2] = C[2] ^ ( C[4] | ~C[3])
and @C[1],@T[0]
xor @C[0],@T[0] # C[0] ^ ( C[2] & C[1])
mov @T[0],$A[3][0](%rsi) # R[3][0] = C[0] ^ ( C[2] & C[1])
or @C[0],@C[1]
xor @T[1],@C[1] # C[4] ^ ( C[1] | C[0])
mov @C[1],$A[3][4](%rsi) # R[3][4] = C[4] ^ ( C[1] | C[0])
and @T[1],@C[0]
xor @C[3],@C[0] # ~C[3] ^ ( C[0] & C[4])
mov @C[0],$A[3][3](%rsi) # R[3][3] = ~C[3] ^ ( C[0] & C[4])
xor $A[0][2](%rdi),@D[2]
xor $A[1][3](%rdi),@D[3]
rol \$$rhotates[0][2],@D[2]
xor $A[4][1](%rdi),@D[1]
rol \$$rhotates[1][3],@D[3]
xor $A[2][4](%rdi),@D[4]
rol \$$rhotates[4][1],@D[1]
xor $A[3][0](%rdi),@D[0]
xchg %rsi,%rdi
rol \$$rhotates[2][4],@D[4]
rol \$$rhotates[3][0],@D[0]
___
@C = @D[2..4,0,1];
$code.=<<___;
mov @C[0],@T[0]
and @C[1],@C[0]
not @C[1]
xor @C[4],@C[0] # C[4] ^ ( C[0] & C[1])
mov @C[0],$A[4][4](%rdi) # R[4][4] = C[4] ^ ( C[0] & C[1])
mov @C[2],@T[1]
and @C[1],@C[2]
xor @T[0],@C[2] # C[0] ^ ( C[2] & ~C[1])
mov @C[2],$A[4][0](%rdi) # R[4][0] = C[0] ^ ( C[2] & ~C[1])
or @C[4],@T[0]
xor @C[3],@T[0] # C[3] ^ ( C[0] | C[4])
mov @T[0],$A[4][3](%rdi) # R[4][3] = C[3] ^ ( C[0] | C[4])
and @C[3],@C[4]
xor @T[1],@C[4] # C[2] ^ ( C[4] & C[3])
mov @C[4],$A[4][2](%rdi) # R[4][2] = C[2] ^ ( C[4] & C[3])
or @T[1],@C[3]
xor @C[1],@C[3] # ~C[1] ^ ( C[2] | C[3])
mov @C[3],$A[4][1](%rdi) # R[4][1] = ~C[1] ^ ( C[2] | C[3])
mov @C[0],@C[1] # harmonize with the loop top
mov @T[0],@C[0]
test \$255,$iotas
jnz .Loop
lea -192($iotas),$iotas # rewind iotas
ret
.cfi_endproc
.size __KeccakF1600,.-__KeccakF1600
.type KeccakF1600,\@abi-omnipotent
.align 32
KeccakF1600:
.cfi_startproc
push %rbx
.cfi_push %rbx
push %rbp
.cfi_push %rbp
push %r12
.cfi_push %r12
push %r13
.cfi_push %r13
push %r14
.cfi_push %r14
push %r15
.cfi_push %r15
lea 100(%rdi),%rdi # size optimization
sub \$200,%rsp
.cfi_adjust_cfa_offset 200
notq $A[0][1](%rdi)
notq $A[0][2](%rdi)
notq $A[1][3](%rdi)
notq $A[2][2](%rdi)
notq $A[3][2](%rdi)
notq $A[4][0](%rdi)
lea iotas(%rip),$iotas
lea 100(%rsp),%rsi # size optimization
call __KeccakF1600
notq $A[0][1](%rdi)
notq $A[0][2](%rdi)
notq $A[1][3](%rdi)
notq $A[2][2](%rdi)
notq $A[3][2](%rdi)
notq $A[4][0](%rdi)
lea -100(%rdi),%rdi # preserve A[][]
add \$200,%rsp
.cfi_adjust_cfa_offset -200
pop %r15
.cfi_pop %r15
pop %r14
.cfi_pop %r14
pop %r13
.cfi_pop %r13
pop %r12
.cfi_pop %r12
pop %rbp
.cfi_pop %rbp
pop %rbx
.cfi_pop %rbx
ret
.cfi_endproc
.size KeccakF1600,.-KeccakF1600
___
{ my ($A_flat,$inp,$len,$bsz) = ("%rdi","%rsi","%rdx","%rcx");
($A_flat,$inp) = ("%r8","%r9");
$code.=<<___;
.globl SHA3_absorb
.type SHA3_absorb,\@function,4
.align 32
SHA3_absorb:
.cfi_startproc
push %rbx
.cfi_push %rbx
push %rbp
.cfi_push %rbp
push %r12
.cfi_push %r12
push %r13
.cfi_push %r13
push %r14
.cfi_push %r14
push %r15
.cfi_push %r15
lea 100(%rdi),%rdi # size optimization
sub \$232,%rsp
.cfi_adjust_cfa_offset 232
mov %rsi,$inp
lea 100(%rsp),%rsi # size optimization
notq $A[0][1](%rdi)
notq $A[0][2](%rdi)
notq $A[1][3](%rdi)
notq $A[2][2](%rdi)
notq $A[3][2](%rdi)
notq $A[4][0](%rdi)
lea iotas(%rip),$iotas
mov $bsz,216-100(%rsi) # save bsz
.Loop_absorb:
cmp $bsz,$len
jc .Ldone_absorb
shr \$3,$bsz
lea -100(%rdi),$A_flat
.Lblock_absorb:
mov ($inp),%rax
lea 8($inp),$inp
xor ($A_flat),%rax
lea 8($A_flat),$A_flat
sub \$8,$len
mov %rax,-8($A_flat)
sub \$1,$bsz
jnz .Lblock_absorb
mov $inp,200-100(%rsi) # save inp
mov $len,208-100(%rsi) # save len
call __KeccakF1600
mov 200-100(%rsi),$inp # pull inp
mov 208-100(%rsi),$len # pull len
mov 216-100(%rsi),$bsz # pull bsz
jmp .Loop_absorb
.align 32
.Ldone_absorb:
mov $len,%rax # return value
notq $A[0][1](%rdi)
notq $A[0][2](%rdi)
notq $A[1][3](%rdi)
notq $A[2][2](%rdi)
notq $A[3][2](%rdi)
notq $A[4][0](%rdi)
add \$232,%rsp
.cfi_adjust_cfa_offset -232
pop %r15
.cfi_pop %r15
pop %r14
.cfi_pop %r14
pop %r13
.cfi_pop %r13
pop %r12
.cfi_pop %r12
pop %rbp
.cfi_pop %rbp
pop %rbx
.cfi_pop %rbx
ret
.cfi_endproc
.size SHA3_absorb,.-SHA3_absorb
___
}
{ my ($A_flat,$out,$len,$bsz,$next) = ("%rdi","%rsi","%rdx","%rcx","%r8");
($out,$len,$bsz) = ("%r12","%r13","%r14");
$code.=<<___;
.globl SHA3_squeeze
.type SHA3_squeeze,\@function,5
.align 32
SHA3_squeeze:
.cfi_startproc
push %r12
.cfi_push %r12
push %r13
.cfi_push %r13
push %r14
.cfi_push %r14
shr \$3,%rcx
mov $A_flat,%r9
mov %rsi,$out
mov %rdx,$len
mov %rcx,$bsz
bt \$0,$next
jc .Lnext_block
jmp .Loop_squeeze
.align 32
.Loop_squeeze:
cmp \$8,$len
jb .Ltail_squeeze
mov (%r9),%rax
lea 8(%r9),%r9
mov %rax,($out)
lea 8($out),$out
sub \$8,$len # len -= 8
jz .Ldone_squeeze
sub \$1,%rcx # bsz--
jnz .Loop_squeeze
.Lnext_block:
call KeccakF1600
mov $A_flat,%r9
mov $bsz,%rcx
jmp .Loop_squeeze
.Ltail_squeeze:
mov %r9, %rsi
mov $out,%rdi
mov $len,%rcx
.byte 0xf3,0xa4 # rep movsb
.Ldone_squeeze:
pop %r14
.cfi_pop %r14
pop %r13
.cfi_pop %r13
pop %r12
.cfi_pop %r13
ret
.cfi_endproc
.size SHA3_squeeze,.-SHA3_squeeze
___
}
$code.=<<___;
.align 256
.quad 0,0,0,0,0,0,0,0
.type iotas,\@object
iotas:
.quad 0x0000000000000001
.quad 0x0000000000008082
.quad 0x800000000000808a
.quad 0x8000000080008000
.quad 0x000000000000808b
.quad 0x0000000080000001
.quad 0x8000000080008081
.quad 0x8000000000008009
.quad 0x000000000000008a
.quad 0x0000000000000088
.quad 0x0000000080008009
.quad 0x000000008000000a
.quad 0x000000008000808b
.quad 0x800000000000008b
.quad 0x8000000000008089
.quad 0x8000000000008003
.quad 0x8000000000008002
.quad 0x8000000000000080
.quad 0x000000000000800a
.quad 0x800000008000000a
.quad 0x8000000080008081
.quad 0x8000000000008080
.quad 0x0000000080000001
.quad 0x8000000080008008
.size iotas,.-iotas
.asciz "Keccak-1600 absorb and squeeze for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
___
foreach (split("\n",$code)) {
# Below replacement results in 11.2 on Sandy Bridge, 9.4 on
# Haswell, but it hurts other processors by up to 2-3-4x...
#s/rol\s+(\$[0-9]+),(%[a-z][a-z0-9]+)/shld\t$1,$2,$2/;
# Below replacement results in 9.3 on Haswell [as well as
# on Ryzen, i.e. it *hurts* Ryzen]...
#s/rol\s+\$([0-9]+),(%[a-z][a-z0-9]+)/rorx\t\$64-$1,$2,$2/;
print $_, "\n";
}
close STDOUT or die "error closing STDOUT: $!";
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