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Third Party Openssl
提交 a163e60d 编写于 作者: A Andy Polyakov
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sha/asm/keccak1600-mmx.pl: optimize for Atom and add comparison data. 

Curiously enough out-of-order Silvermont benefited most from
optimization, 33%. [Originally mentioned "anomaly" turned to be
misreported frequency scaling problem. Correct results were
collected under older kernel.]
Reviewed-by: NRich Salz <rsalz@openssl.org>
Reviewed-by: NBernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/3739)
上级 415248e1
隐藏空白更改
内联 并排
Showing with 126 addition and 115 deletion
crypto/sha/asm/keccak1600-mmx.pl
浏览文件 @ a163e60d
......@@ -21,29 +21,45 @@
# C[5] held in register bank and D[5] offloaded to memory. Though
# instead of actually unrolling the loop pair-wise I simply flip
# pointers to T[][] and A[][] and the end of round. Since number of
# rounds is even last round writes to A[][] and everything works out.
# rounds is even, last round writes to A[][] and everything works out.
# It's argued that MMX is the only code path meaningful to implement
# for x86. This is because non-MMX-capable processors is an extinct
# breed, and they as well can lurk executing compiler-generated code.
# For reference gcc-5.x-generated KECCAK_2X code takes 89 cycles per
# processed byte on Pentium. Which is fair result. But older compilers
# produce worse code. On the other hand one can wonder why not 128-bit
# SSE2? Well, SSE2 won't provide double improvement, rather far from
# that, if any at all on some processors, because it will take extra
# permutations and inter-bank data trasfers. Besides, contemporary
# CPUs are better off executing 64-bit code, and it makes lesser sense
# to invest into fancy 32-bit code. And the decision doesn't seem to
# be inadequate, if one compares below results to "64-bit platforms in
# 32-bit mode" SIMD data points available at
# http://keccak.noekeon.org/sw_performance.html.
#
########################################################################
# Numbers are cycles per processed byte out of large message.
#
# r=1088(i)
#
# PIII 31
# Pentium M 27
# P4 42
# Core 2 20
# Sandy Bridge(ii) 18
# Atom 37
# Silvermont(ii) 80(iv)
# VIA Nano(ii) 44
# Sledgehammer(ii)(iii) 25
# PIII 30/+150%
# Pentium M 27/+150%
# P4 40/+85%
# Core 2 19/+170%
# Sandy Bridge(ii) 18/+140%
# Atom 33/+180%
# Silvermont(ii) 30/+180%
# VIA Nano(ii) 43/+60%
# Sledgehammer(ii)(iii) 24/+130%
#
# (i) Corresponds to SHA3-256.
# (i) Corresponds to SHA3-256. Numbers after slash are improvement
# coefficients over KECCAK_2X [with bit interleave and lane
# complementing] position-independent *scalar* code generated
# by gcc-5.x. It's not exactly fair comparison, but it's a
# datapoint...
# (ii) 64-bit processor executing 32-bit code.
# (iii) Result is considered to be representative even for older AMD
# processors.
# (iv) This seems to be some processor anomaly. Successor doesn't
# have this problem...
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
......@@ -97,184 +113,179 @@ my @rhotates = ([ 0, 1, 62, 28, 27 ],
&pxor (@C[3],&QWP($A[2][3],"esi"));
&pxor (@C[4],&QWP($A[2][4],"esi"));
&pxor (@C[2],&QWP($A[3][2],"esi"));
&pxor (@C[0],&QWP($A[3][0],"esi"));
&pxor (@C[1],&QWP($A[3][1],"esi"));
&pxor (@C[2],&QWP($A[3][2],"esi"));
&pxor (@C[3],&QWP($A[3][3],"esi"));
&movq (@T[0],@C[2]);
&pxor (@C[4],&QWP($A[3][4],"esi"));
&movq (@T[0],@C[2]);
&movq (@T[2],@C[2]);
&psrlq (@T[0],63);
&psllq (@T[2],1);
&pxor (@T[0],@C[0]);
&pxor (@T[0],@T[2]);
&movq (&QWP(@D[1],"esp"),@T[0]); # D[1] = E[0] = ROL64(C[2], 1) ^ C[0];
&movq (@T[2],@C[2]);
&psrlq (@T[0],63);
&movq (@T[1],@C[0]);
&psllq (@T[2],1);
&pxor (@T[0],@C[0]);
&psrlq (@C[0],63);
&pxor (@T[0],@T[2]);
&psllq (@T[1],1);
&movq (@T[2],@C[1]);
&movq (&QWP(@D[1],"esp"),@T[0]); # D[1] = E[0] = ROL64(C[2], 1) ^ C[0];
&pxor (@T[1],@C[0]);
&psrlq (@T[2],63);
&pxor (@T[1],@C[3]);
&movq (@C[0],@C[1]);
&movq (&QWP(@D[4],"esp"),@T[1]); # D[4] = E[1] = ROL64(C[0], 1) ^ C[3];
&movq (@C[0],@C[1]);
&movq (@T[2],@C[1]);
&psrlq (@C[0],63);
&psllq (@T[2],1);
&pxor (@C[0],@C[4]);
&pxor (@C[0],@T[2]);
&movq (&QWP(@D[0],"esp"),@C[0]); # D[0] = C[0] = ROL64(C[1], 1) ^ C[4];
&psllq (@C[0],1);
&pxor (@T[2],@C[4]);
&pxor (@C[0],@T[2]);
&movq (@T[2],@C[3]);
&psrlq (@C[3],63);
&movq (&QWP(@D[0],"esp"),@C[0]); # D[0] = C[0] = ROL64(C[1], 1) ^ C[4];
&psllq (@T[2],1);
&movq (@T[0],@C[4]);
&psrlq (@C[4],63);
&pxor (@C[1],@C[3]);
&psllq (@T[0],1);
&pxor (@C[1],@T[2]);
&pxor (@C[2],@C[4]);
&movq (&QWP(@D[2],"esp"),@C[1]); # D[2] = C[1] = ROL64(C[3], 1) ^ C[1];
&pxor (@C[2],@T[0]);
&movq (@T[2],@C[4]);
&psrlq (@C[4],63);
&psllq (@T[2],1);
&pxor (@C[2],@C[4]);
&pxor (@C[2],@T[2]);
&movq (&QWP(@D[3],"esp"),@C[2]); # D[3] = C[2] = ROL64(C[4], 1) ^ C[2];
######################################### first Rho step is special
######################################### first Rho(0) is special
&movq (@C[3],&QWP($A[3][3],"esi"));
&movq (&QWP(@D[3],"esp"),@C[2]); # D[3] = C[2] = ROL64(C[4], 1) ^ C[2];
&pxor (@C[3],@C[2]);
&movq (@C[4],&QWP($A[4][4],"esi"));
&movq (@T[2],@C[3]);
&psrlq (@C[3],64-$rhotates[3][3]);
&pxor (@C[4],@T[1]);
&psllq (@T[2],$rhotates[3][3]);
&movq (@T[1],@C[4]);
&psrlq (@C[4],64-$rhotates[4][4]);
&por (@C[3],@T[2]); # C[3] = ROL64(A[3][3] ^ C[2], rhotates[3][3]); /* D[3] */
&movq (@C[4],&QWP($A[4][4],"esi"));
&pxor (@C[4],@T[1]);
&movq (@T[2],@C[4]);
&psrlq (@C[4],64-$rhotates[4][4]);
&psllq (@T[2],$rhotates[4][4]);
&por (@C[4],@T[2]); # C[4] = ROL64(A[4][4] ^ E[1], rhotates[4][4]); /* D[4] */
&pxor (@C[0],&QWP($A[0][0],"esi")); # /* rotate by 0 */ /* D[0] */
&psllq (@T[1],$rhotates[4][4]);
&movq (@C[2],&QWP($A[2][2],"esi"));
&por (@C[4],@T[1]); # C[4] = ROL64(A[4][4] ^ E[1], rhotates[4][4]); /* D[4] */
&pxor (@C[2],@C[1]);
&movq (@C[1],&QWP($A[1][1],"esi"));
&movq (@T[1],@C[2]);
&psrlq (@C[2],64-$rhotates[2][2]);
&pxor (@C[1],&QWP(@D[1],"esp"));
&psllq (@T[1],$rhotates[2][2]);
&por (@C[2],@T[1]); # C[2] = ROL64(A[2][2] ^ C[1], rhotates[2][2]); /* D[2] */
&movq (@C[1],&QWP($A[1][1],"esi"));
&pxor (@C[1],@T[0]);
&movq (@T[2],@C[1]);
&psrlq (@C[1],64-$rhotates[1][1]);
&psllq (@T[2],$rhotates[1][1]);
&por (@C[1],@T[2]); # C[1] = ROL64(A[1][1] ^ E[0], rhotates[1][1]); /* D[1] */
&movq (@T[2],@C[1]);
&psrlq (@C[1],64-$rhotates[1][1]);
&por (@C[2],@T[1]); # C[2] = ROL64(A[2][2] ^ C[1], rhotates[2][2]); /* D[2] */
&psllq (@T[2],$rhotates[1][1]);
&pxor (@C[0],&QWP($A[0][0],"esi")); # /* rotate by 0 */ /* D[0] */
&por (@C[1],@T[2]); # C[1] = ROL64(A[1][1] ^ D[1], rhotates[1][1]);
sub Chi() { ######### regular Chi step
my $y = shift;
my ($y,$xrho) = @_;
&movq (@T[0],@C[1]);
&movq (@T[1],@C[2]);
&pandn (@T[0],@C[2]);
&pandn (@C[2],@C[3]);
&pxor (@T[0],@C[0]);
&pxor (@C[2],@C[1]);
&pxor (@T[0],&QWP(0,"ebx")) if ($y == 0);
&lea ("ebx",&DWP(8,"ebx")) if ($y == 0);
&movq (&QWP($A[$y][0],"edi"),@T[0]); # R[0][0] = C[0] ^ (~C[1] & C[2]) ^ iotas[i];
&movq (@T[1],@C[2]);
&pandn (@T[1],@C[3]);
&pxor (@T[1],@C[1]);
&movq (&QWP($A[$y][1],"edi"),@T[1]); # R[0][1] = C[1] ^ (~C[2] & C[3]);
&movq (@T[2],@C[3]);
&pandn (@T[2],@C[4]);
&pxor (@T[2],@C[2]);
&movq (&QWP($A[$y][2],"edi"),@T[2]); # R[0][2] = C[2] ^ (~C[3] & C[4]);
&movq (@T[0],@C[4]);
&pandn (@T[0],@C[0]);
&pxor (@T[0],@C[3]);
&movq (&QWP($A[$y][3],"edi"),@T[0]); # R[0][3] = C[3] ^ (~C[4] & C[0]);
&movq (@T[1],@C[0]);
&pandn (@T[1],@C[1]);
&pxor (@T[1],@C[4]);
&movq (&QWP($A[$y][4],"edi"),@T[1]); # R[0][4] = C[4] ^ (~C[0] & C[1]);
&movq (&QWP($A[$y][0],"edi"),@T[0]); # R[0][0] = C[0] ^ (~C[1] & C[2]) ^ iotas[i];
&movq (@T[0],@C[4]);
&pandn (@C[3],@C[4]);
&pandn (@C[4],@C[0]);
&pxor (@C[3],@T[1]);
&movq (&QWP($A[$y][1],"edi"),@C[2]); # R[0][1] = C[1] ^ (~C[2] & C[3]);
&pxor (@C[4],@T[2]);
&movq (@T[2],&QWP($A[0][$xrho],"esi")) if (defined($xrho));
&movq (&QWP($A[$y][2],"edi"),@C[3]); # R[0][2] = C[2] ^ (~C[3] & C[4]);
&pandn (@C[0],@C[1]);
&movq (&QWP($A[$y][3],"edi"),@C[4]); # R[0][3] = C[3] ^ (~C[4] & C[0]);
&pxor (@C[0],@T[0]);
&pxor (@T[2],&QWP(@D[$xrho],"esp")) if (defined($xrho));
&movq (&QWP($A[$y][4],"edi"),@C[0]); # R[0][4] = C[4] ^ (~C[0] & C[1]);
}
&Chi (0);
&Chi (0, 3);
sub Rho() { ######### regular Rho step
my $x = shift;
&movq (@C[0],&QWP($A[0][$x],"esi"));
&pxor (@C[0],&QWP(@D[$x],"esp"));
&movq (@T[0],@C[0]);
&psrlq (@C[0],64-$rhotates[0][$x]);
&psllq (@T[0],$rhotates[0][$x]);
&por (@C[0],@T[0]); # C[0] = ROL64(A[0][3] ^ D[3], rhotates[0][3]);
&movq (@C[1],&QWP($A[1][($x+1)%5],"esi"));
&pxor (@C[1],&QWP(@D[($x+1)%5],"esp"));
&movq (@T[1],@C[1]);
&psrlq (@C[1],64-$rhotates[1][($x+1)%5]);
&psllq (@T[1],$rhotates[1][($x+1)%5]);
&por (@C[1],@T[1]); # C[1] = ROL64(A[1][4] ^ D[4], rhotates[1][4]);
#&movq (@T[2],&QWP($A[0][$x],"esi")); # moved to Chi
#&pxor (@T[2],&QWP(@D[$x],"esp")); # moved to Chi
&movq (@C[0],@T[2]);
&psrlq (@T[2],64-$rhotates[0][$x]);
&movq (@C[1],&QWP($A[1][($x+1)%5],"esi"));
&psllq (@C[0],$rhotates[0][$x]);
&pxor (@C[1],&QWP(@D[($x+1)%5],"esp"));
&por (@C[0],@T[2]); # C[0] = ROL64(A[0][3] ^ D[3], rhotates[0][3]);
&movq (@T[1],@C[1]);
&psrlq (@C[1],64-$rhotates[1][($x+1)%5]);
&movq (@C[2],&QWP($A[2][($x+2)%5],"esi"));
&psllq (@T[1],$rhotates[1][($x+1)%5]);
&pxor (@C[2],&QWP(@D[($x+2)%5],"esp"));
&por (@C[1],@T[1]); # C[1] = ROL64(A[1][4] ^ D[4], rhotates[1][4]);
&movq (@T[2],@C[2]);
&psrlq (@C[2],64-$rhotates[2][($x+2)%5]);
&movq (@C[3],&QWP($A[3][($x+3)%5],"esi"));
&psllq (@T[2],$rhotates[2][($x+2)%5]);
&pxor (@C[3],&QWP(@D[($x+3)%5],"esp"));
&por (@C[2],@T[2]); # C[2] = ROL64(A[2][0] ^ D[0], rhotates[2][0]);
&movq (@C[3],&QWP($A[3][($x+3)%5],"esi"));
&pxor (@C[3],&QWP(@D[($x+3)%5],"esp"));
&movq (@T[0],@C[3]);
&psrlq (@C[3],64-$rhotates[3][($x+3)%5]);
&psllq (@T[0],$rhotates[3][($x+3)%5]);
&por (@C[3],@T[0]); # C[3] = ROL64(A[3][1] ^ D[1], rhotates[3][1]);
&movq (@T[0],@C[3]);
&psrlq (@C[3],64-$rhotates[3][($x+3)%5]);
&movq (@C[4],&QWP($A[4][($x+4)%5],"esi"));
&psllq (@T[0],$rhotates[3][($x+3)%5]);
&pxor (@C[4],&QWP(@D[($x+4)%5],"esp"));
&por (@C[3],@T[0]); # C[3] = ROL64(A[3][1] ^ D[1], rhotates[3][1]);
&movq (@T[1],@C[4]);
&psrlq (@C[4],64-$rhotates[4][($x+4)%5]);
&psllq (@T[1],$rhotates[4][($x+4)%5]);
&por (@C[4],@T[1]); # C[4] = ROL64(A[4][2] ^ D[2], rhotates[4][2]);
}
&Rho (3); &Chi (1);
&Rho (1); &Chi (2);
&Rho (4); &Chi (3);
&Rho (2); #&Chi (4);
&Rho (3); &Chi (1, 1);
&Rho (1); &Chi (2, 4);
&Rho (4); &Chi (3, 2);
&Rho (2); ###&Chi (4);
&movq (@T[0],@C[0]); ######### last Chi(4) is special
&xor ("edi","esi"); # &xchg ("esi","edi");
&movq (&QWP(@D[1],"esp"),@C[1]);
&xor ("esi","edi");
&xor ("edi","esi");
&movq (@T[1],@C[1]);
&movq (@T[2],@C[2]);
&pandn (@T[1],@C[2]);
&pandn (@T[2],@C[3]);
&pxor (@C[0],@T[1]);
&movq (&QWP($A[4][0],"edi"),@C[0]); # R[4][0] = C[0] ^= (~C[1] & C[2]);
&movq (@T[2],@C[2]);
&pandn (@T[2],@C[3]);
&pxor (@C[1],@T[2]);
&movq (&QWP($A[4][1],"edi"),@C[1]); # R[4][1] = C[1] ^= (~C[2] & C[3]);
&pxor (@C[1],@T[2]);
&movq (@T[1],@C[3]);
&movq (&QWP($A[4][0],"esi"),@C[0]); # R[4][0] = C[0] ^= (~C[1] & C[2]);
&pandn (@T[1],@C[4]);
&movq (&QWP($A[4][1],"esi"),@C[1]); # R[4][1] = C[1] ^= (~C[2] & C[3]);
&pxor (@C[2],@T[1]);
&movq (&QWP($A[4][2],"edi"),@C[2]); # R[4][2] = C[2] ^= (~C[3] & C[4]);
&movq (@T[2],@C[4]);
&movq (&QWP($A[4][2],"esi"),@C[2]); # R[4][2] = C[2] ^= (~C[3] & C[4]);
&movq (@T[2],@C[4]);
&pandn (@T[2],@T[0]);
&pandn (@T[0],&QWP(@D[1],"esp"));
&pxor (@C[3],@T[2]);
&movq (&QWP($A[4][3],"edi"),@C[3]); # R[4][3] = C[3] ^= (~C[4] & D[0]);
&pandn (@T[0],&QWP(@D[1],"esp"));
&pxor (@C[4],@T[0]);
&movq (&QWP($A[4][4],"edi"),@C[4]); # R[4][4] = C[4] ^= (~D[0] & D[1]);
&xchg ("esi","edi");
&dec ("ecx");
&pxor (@C[4],@T[0]);
&movq (&QWP($A[4][3],"esi"),@C[3]); # R[4][3] = C[3] ^= (~C[4] & D[0]);
&sub ("ecx",1);
&movq (&QWP($A[4][4],"esi"),@C[4]); # R[4][4] = C[4] ^= (~D[0] & D[1]);
&jnz (&label("loop"));
&lea ("ebx",&DWP(-192,"ebx")); # rewind iotas
......
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