--- /dev/null
+#!/usr/bin/env perl
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@fy.chalmers.se> 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/.
+# ====================================================================
+#
+# sha1_block procedure for x86_64.
+#
+# It was brought to my attention that on EM64T compiler-generated code
+# was far behind 32-bit assembler implementation. This is unlike on
+# Opteron where compiler-generated code was only 15% behind 32-bit
+# assembler, which originally made it hard to motivate the effort.
+# There was suggestion to mechanically translate 32-bit code, but I
+# dismissed it, reasoning that x86_64 offers enough register bank
+# capacity to fully utilize SHA-1 parallelism. Therefore this fresh
+# implementation:-) However! While 64-bit code does performs better
+# on Opteron, I failed to beat 32-bit assembler on EM64T core. Well,
+# x86_64 does offer larger *addressable* bank, but out-of-order core
+# reaches for even more registers through dynamic aliasing, and EM64T
+# core must have managed to run-time optimize even 32-bit code just as
+# good as 64-bit one. Performance improvement is summarized in the
+# following table:
+#
+# gcc 3.4 32-bit asm cycles/byte
+# Opteron +45% +20% 6.8
+# Xeon P4 +65% +0% 9.9
+# Core2 +60% +10% 8.8
+
+$output=shift;
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $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 STDOUT,"| $^X $xlate $output";
+
+$ctx="%rdi"; # 1st arg
+$inp="%rsi"; # 2nd arg
+$num="%rdx"; # 3rd arg
+
+# reassign arguments in order to produce more compact code
+$ctx="%r8";
+$inp="%r9";
+$num="%r10";
+
+$xi="%eax";
+$t0="%ebx";
+$t1="%ecx";
+$A="%edx";
+$B="%esi";
+$C="%edi";
+$D="%ebp";
+$E="%r11d";
+$T="%r12d";
+
+@V=($A,$B,$C,$D,$E,$T);
+
+sub PROLOGUE {
+my $func=shift;
+$code.=<<___;
+.globl $func
+.type $func,\@function,3
+.align 16
+$func:
+ push %rbx
+ push %rbp
+ push %r12
+ mov %rsp,%rax
+ mov %rdi,$ctx # reassigned argument
+ sub \$`8+16*4`,%rsp
+ mov %rsi,$inp # reassigned argument
+ and \$-64,%rsp
+ mov %rdx,$num # reassigned argument
+ mov %rax,`16*4`(%rsp)
+
+ mov 0($ctx),$A
+ mov 4($ctx),$B
+ mov 8($ctx),$C
+ mov 12($ctx),$D
+ mov 16($ctx),$E
+___
+}
+
+sub EPILOGUE {
+my $func=shift;
+$code.=<<___;
+ mov `16*4`(%rsp),%rsp
+ pop %r12
+ pop %rbp
+ pop %rbx
+ ret
+.size $func,.-$func
+___
+}
+
+sub BODY_00_19 {
+my ($i,$a,$b,$c,$d,$e,$f,$host)=@_;
+my $j=$i+1;
+$code.=<<___ if ($i==0);
+ mov `4*$i`($inp),$xi
+ `"bswap $xi" if(!defined($host))`
+ mov $xi,`4*$i`(%rsp)
+___
+$code.=<<___ if ($i<15);
+ lea 0x5a827999($xi,$e),$f
+ mov $c,$t0
+ mov `4*$j`($inp),$xi
+ mov $a,$e
+ xor $d,$t0
+ `"bswap $xi" if(!defined($host))`
+ rol \$5,$e
+ and $b,$t0
+ mov $xi,`4*$j`(%rsp)
+ add $e,$f
+ xor $d,$t0
+ rol \$30,$b
+ add $t0,$f
+___
+$code.=<<___ if ($i>=15);
+ lea 0x5a827999($xi,$e),$f
+ mov `4*($j%16)`(%rsp),$xi
+ mov $c,$t0
+ mov $a,$e
+ xor `4*(($j+2)%16)`(%rsp),$xi
+ xor $d,$t0
+ rol \$5,$e
+ xor `4*(($j+8)%16)`(%rsp),$xi
+ and $b,$t0
+ add $e,$f
+ xor `4*(($j+13)%16)`(%rsp),$xi
+ xor $d,$t0
+ rol \$30,$b
+ add $t0,$f
+ rol \$1,$xi
+ mov $xi,`4*($j%16)`(%rsp)
+___
+}
+
+sub BODY_20_39 {
+my ($i,$a,$b,$c,$d,$e,$f)=@_;
+my $j=$i+1;
+my $K=($i<40)?0x6ed9eba1:0xca62c1d6;
+$code.=<<___ if ($i<79);
+ lea $K($xi,$e),$f
+ mov `4*($j%16)`(%rsp),$xi
+ mov $c,$t0
+ mov $a,$e
+ xor `4*(($j+2)%16)`(%rsp),$xi
+ xor $b,$t0
+ rol \$5,$e
+ xor `4*(($j+8)%16)`(%rsp),$xi
+ xor $d,$t0
+ add $e,$f
+ xor `4*(($j+13)%16)`(%rsp),$xi
+ rol \$30,$b
+ add $t0,$f
+ rol \$1,$xi
+___
+$code.=<<___ if ($i<76);
+ mov $xi,`4*($j%16)`(%rsp)
+___
+$code.=<<___ if ($i==79);
+ lea $K($xi,$e),$f
+ mov $c,$t0
+ mov $a,$e
+ xor $b,$t0
+ rol \$5,$e
+ xor $d,$t0
+ add $e,$f
+ rol \$30,$b
+ add $t0,$f
+___
+}
+
+sub BODY_40_59 {
+my ($i,$a,$b,$c,$d,$e,$f)=@_;
+my $j=$i+1;
+$code.=<<___;
+ lea 0x8f1bbcdc($xi,$e),$f
+ mov `4*($j%16)`(%rsp),$xi
+ mov $b,$t0
+ mov $b,$t1
+ xor `4*(($j+2)%16)`(%rsp),$xi
+ mov $a,$e
+ and $c,$t0
+ xor `4*(($j+8)%16)`(%rsp),$xi
+ or $c,$t1
+ rol \$5,$e
+ xor `4*(($j+13)%16)`(%rsp),$xi
+ and $d,$t1
+ add $e,$f
+ rol \$1,$xi
+ or $t1,$t0
+ rol \$30,$b
+ mov $xi,`4*($j%16)`(%rsp)
+ add $t0,$f
+___
+}
+
+$code=".text\n";
+
+&PROLOGUE("sha1_block_data_order");
+$code.=".align 4\n.Lloop:\n";
+for($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); }
+for(;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
+for(;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); }
+for(;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
+$code.=<<___;
+ add 0($ctx),$E
+ add 4($ctx),$T
+ add 8($ctx),$A
+ add 12($ctx),$B
+ add 16($ctx),$C
+ mov $E,0($ctx)
+ mov $T,4($ctx)
+ mov $A,8($ctx)
+ mov $B,12($ctx)
+ mov $C,16($ctx)
+
+ xchg $E,$A # mov $E,$A
+ xchg $T,$B # mov $T,$B
+ xchg $E,$C # mov $A,$C
+ xchg $T,$D # mov $B,$D
+ # mov $C,$E
+ lea `16*4`($inp),$inp
+ sub \$1,$num
+ jnz .Lloop
+___
+&EPILOGUE("sha1_block_data_order");
+$code.=<<___;
+.asciz "SHA1 block transform for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
+___
+
+####################################################################
+
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+print $code;
+close STDOUT;
--- /dev/null
+#!/usr/bin/env perl
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
+# project. Rights for redistribution and usage in source and binary
+# forms are granted according to the OpenSSL license.
+# ====================================================================
+#
+# sha256/512_block procedure for x86_64.
+#
+# 40% improvement over compiler-generated code on Opteron. On EM64T
+# sha256 was observed to run >80% faster and sha512 - >40%. No magical
+# tricks, just straight implementation... I really wonder why gcc
+# [being armed with inline assembler] fails to generate as fast code.
+# The only thing which is cool about this module is that it's very
+# same instruction sequence used for both SHA-256 and SHA-512. In
+# former case the instructions operate on 32-bit operands, while in
+# latter - on 64-bit ones. All I had to do is to get one flavor right,
+# the other one passed the test right away:-)
+#
+# sha256_block runs in ~1005 cycles on Opteron, which gives you
+# asymptotic performance of 64*1000/1005=63.7MBps times CPU clock
+# frequency in GHz. sha512_block runs in ~1275 cycles, which results
+# in 128*1000/1275=100MBps per GHz. Is there room for improvement?
+# Well, if you compare it to IA-64 implementation, which maintains
+# X[16] in register bank[!], tends to 4 instructions per CPU clock
+# cycle and runs in 1003 cycles, 1275 is very good result for 3-way
+# issue Opteron pipeline and X[16] maintained in memory. So that *if*
+# there is a way to improve it, *then* the only way would be to try to
+# offload X[16] updates to SSE unit, but that would require "deeper"
+# loop unroll, which in turn would naturally cause size blow-up, not
+# to mention increased complexity! And once again, only *if* it's
+# actually possible to noticeably improve overall ILP, instruction
+# level parallelism, on a given CPU implementation in this case.
+#
+# Special note on Intel EM64T. While Opteron CPU exhibits perfect
+# perfromance ratio of 1.5 between 64- and 32-bit flavors [see above],
+# [currently available] EM64T CPUs apparently are far from it. On the
+# contrary, 64-bit version, sha512_block, is ~30% *slower* than 32-bit
+# sha256_block:-( This is presumably because 64-bit shifts/rotates
+# apparently are not atomic instructions, but implemented in microcode.
+
+$output=shift;
+open STDOUT,"| $^X ../perlasm/x86_64-xlate.pl $output";
+
+if ($output =~ /512/) {
+ $func="sha512_block_data_order";
+ $TABLE="K512";
+ $SZ=8;
+ @ROT=($A,$B,$C,$D,$E,$F,$G,$H)=("%rax","%rbx","%rcx","%rdx",
+ "%r8", "%r9", "%r10","%r11");
+ ($T1,$a0,$a1,$a2)=("%r12","%r13","%r14","%r15");
+ @Sigma0=(28,34,39);
+ @Sigma1=(14,18,41);
+ @sigma0=(1, 8, 7);
+ @sigma1=(19,61, 6);
+ $rounds=80;
+} else {
+ $func="sha256_block_data_order";
+ $TABLE="K256";
+ $SZ=4;
+ @ROT=($A,$B,$C,$D,$E,$F,$G,$H)=("%eax","%ebx","%ecx","%edx",
+ "%r8d","%r9d","%r10d","%r11d");
+ ($T1,$a0,$a1,$a2)=("%r12d","%r13d","%r14d","%r15d");
+ @Sigma0=( 2,13,22);
+ @Sigma1=( 6,11,25);
+ @sigma0=( 7,18, 3);
+ @sigma1=(17,19,10);
+ $rounds=64;
+}
+
+$ctx="%rdi"; # 1st arg
+$round="%rdi"; # zaps $ctx
+$inp="%rsi"; # 2nd arg
+$Tbl="%rbp";
+
+$_ctx="16*$SZ+0*8(%rsp)";
+$_inp="16*$SZ+1*8(%rsp)";
+$_end="16*$SZ+2*8(%rsp)";
+$_rsp="16*$SZ+3*8(%rsp)";
+$framesz="16*$SZ+4*8";
+
+
+sub ROUND_00_15()
+{ my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
+
+$code.=<<___;
+ mov $e,$a0
+ mov $e,$a1
+ mov $f,$a2
+
+ ror \$$Sigma1[0],$a0
+ ror \$$Sigma1[1],$a1
+ xor $g,$a2 # f^g
+
+ xor $a1,$a0
+ ror \$`$Sigma1[2]-$Sigma1[1]`,$a1
+ and $e,$a2 # (f^g)&e
+ mov $T1,`$SZ*($i&0xf)`(%rsp)
+
+ xor $a1,$a0 # Sigma1(e)
+ xor $g,$a2 # Ch(e,f,g)=((f^g)&e)^g
+ add $h,$T1 # T1+=h
+
+ mov $a,$h
+ add $a0,$T1 # T1+=Sigma1(e)
+
+ add $a2,$T1 # T1+=Ch(e,f,g)
+ mov $a,$a0
+ mov $a,$a1
+
+ ror \$$Sigma0[0],$h
+ ror \$$Sigma0[1],$a0
+ mov $a,$a2
+ add ($Tbl,$round,$SZ),$T1 # T1+=K[round]
+
+ xor $a0,$h
+ ror \$`$Sigma0[2]-$Sigma0[1]`,$a0
+ or $c,$a1 # a|c
+
+ xor $a0,$h # h=Sigma0(a)
+ and $c,$a2 # a&c
+ add $T1,$d # d+=T1
+
+ and $b,$a1 # (a|c)&b
+ add $T1,$h # h+=T1
+
+ or $a2,$a1 # Maj(a,b,c)=((a|c)&b)|(a&c)
+ lea 1($round),$round # round++
+
+ add $a1,$h # h+=Maj(a,b,c)
+___
+}
+
+sub ROUND_16_XX()
+{ my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
+
+$code.=<<___;
+ mov `$SZ*(($i+1)&0xf)`(%rsp),$a0
+ mov `$SZ*(($i+14)&0xf)`(%rsp),$T1
+
+ mov $a0,$a2
+
+ shr \$$sigma0[2],$a0
+ ror \$$sigma0[0],$a2
+
+ xor $a2,$a0
+ ror \$`$sigma0[1]-$sigma0[0]`,$a2
+
+ xor $a2,$a0 # sigma0(X[(i+1)&0xf])
+ mov $T1,$a1
+
+ shr \$$sigma1[2],$T1
+ ror \$$sigma1[0],$a1
+
+ xor $a1,$T1
+ ror \$`$sigma1[1]-$sigma1[0]`,$a1
+
+ xor $a1,$T1 # sigma1(X[(i+14)&0xf])
+
+ add $a0,$T1
+
+ add `$SZ*(($i+9)&0xf)`(%rsp),$T1
+
+ add `$SZ*($i&0xf)`(%rsp),$T1
+___
+ &ROUND_00_15(@_);
+}
+
+$code=<<___;
+.text
+
+.globl $func
+.type $func,\@function,4
+.align 16
+$func:
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ mov %rsp,%rbp # copy %rsp
+ shl \$4,%rdx # num*16
+ sub \$$framesz,%rsp
+ lea ($inp,%rdx,$SZ),%rdx # inp+num*16*$SZ
+ and \$-64,%rsp # align stack frame
+ mov $ctx,$_ctx # save ctx, 1st arg
+ mov $inp,$_inp # save inp, 2nd arh
+ mov %rdx,$_end # save end pointer, "3rd" arg
+ mov %rbp,$_rsp # save copy of %rsp
+
+ .picmeup $Tbl
+ lea $TABLE-.($Tbl),$Tbl
+
+ mov $SZ*0($ctx),$A
+ mov $SZ*1($ctx),$B
+ mov $SZ*2($ctx),$C
+ mov $SZ*3($ctx),$D
+ mov $SZ*4($ctx),$E
+ mov $SZ*5($ctx),$F
+ mov $SZ*6($ctx),$G
+ mov $SZ*7($ctx),$H
+ jmp .Lloop
+
+.align 16
+.Lloop:
+ xor $round,$round
+___
+ for($i=0;$i<16;$i++) {
+ $code.=" mov $SZ*$i($inp),$T1\n";
+ $code.=" bswap $T1\n";
+ &ROUND_00_15($i,@ROT);
+ unshift(@ROT,pop(@ROT));
+ }
+$code.=<<___;
+ jmp .Lrounds_16_xx
+.align 16
+.Lrounds_16_xx:
+___
+ for(;$i<32;$i++) {
+ &ROUND_16_XX($i,@ROT);
+ unshift(@ROT,pop(@ROT));
+ }
+
+$code.=<<___;
+ cmp \$$rounds,$round
+ jb .Lrounds_16_xx
+
+ mov $_ctx,$ctx
+ lea 16*$SZ($inp),$inp
+
+ add $SZ*0($ctx),$A
+ add $SZ*1($ctx),$B
+ add $SZ*2($ctx),$C
+ add $SZ*3($ctx),$D
+ add $SZ*4($ctx),$E
+ add $SZ*5($ctx),$F
+ add $SZ*6($ctx),$G
+ add $SZ*7($ctx),$H
+
+ cmp $_end,$inp
+
+ mov $A,$SZ*0($ctx)
+ mov $B,$SZ*1($ctx)
+ mov $C,$SZ*2($ctx)
+ mov $D,$SZ*3($ctx)
+ mov $E,$SZ*4($ctx)
+ mov $F,$SZ*5($ctx)
+ mov $G,$SZ*6($ctx)
+ mov $H,$SZ*7($ctx)
+ jb .Lloop
+
+ mov $_rsp,%rsp
+ pop %r15
+ pop %r14
+ pop %r13
+ pop %r12
+ pop %rbp
+ pop %rbx
+
+ ret
+.size $func,.-$func
+___
+
+if ($SZ==4) {
+$code.=<<___;
+.align 64
+.type $TABLE,\@object
+$TABLE:
+ .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
+ .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
+ .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
+ .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
+ .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
+ .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
+ .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
+ .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
+ .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
+ .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
+ .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
+ .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
+ .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
+ .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
+ .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
+ .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
+___
+} else {
+$code.=<<___;
+.align 64
+.type $TABLE,\@object
+$TABLE:
+ .quad 0x428a2f98d728ae22,0x7137449123ef65cd
+ .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
+ .quad 0x3956c25bf348b538,0x59f111f1b605d019
+ .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
+ .quad 0xd807aa98a3030242,0x12835b0145706fbe
+ .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
+ .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
+ .quad 0x9bdc06a725c71235,0xc19bf174cf692694
+ .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
+ .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
+ .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
+ .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
+ .quad 0x983e5152ee66dfab,0xa831c66d2db43210
+ .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
+ .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
+ .quad 0x06ca6351e003826f,0x142929670a0e6e70
+ .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
+ .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
+ .quad 0x650a73548baf63de,0x766a0abb3c77b2a8
+ .quad 0x81c2c92e47edaee6,0x92722c851482353b
+ .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
+ .quad 0xc24b8b70d0f89791,0xc76c51a30654be30
+ .quad 0xd192e819d6ef5218,0xd69906245565a910
+ .quad 0xf40e35855771202a,0x106aa07032bbd1b8
+ .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
+ .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
+ .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
+ .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
+ .quad 0x748f82ee5defb2fc,0x78a5636f43172f60
+ .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
+ .quad 0x90befffa23631e28,0xa4506cebde82bde9
+ .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
+ .quad 0xca273eceea26619c,0xd186b8c721c0c207
+ .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
+ .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
+ .quad 0x113f9804bef90dae,0x1b710b35131c471b
+ .quad 0x28db77f523047d84,0x32caab7b40c72493
+ .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
+ .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
+ .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
+___
+}
+
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+print $code;
+close STDOUT;
projects / oweals / openssl.git / commitdiff