--- /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/.
+# ====================================================================
+
+# Performance improvement is not really impressive on pre-T1 CPU: +8%
+# over Sun C and +25% over gcc [3.3]. While on T1, a.k.a. Niagara, it
+# turned to be 40% faster than 64-bit code generated by Sun C 5.8 and
+# >2x than 64-bit code generated by gcc 3.4. And there is a gimmick.
+# X[16] vector is packed to 8 64-bit registers and as result nothing
+# is spilled on stack. In addition input data is loaded in compact
+# instruction sequence, thus minimizing the window when the code is
+# subject to [inter-thread] cache-thrashing hazard. The goal is to
+# ensure scalability on UltraSPARC T1, or rather to avoid decay when
+# amount of active threads exceeds the number of physical cores.
+
+$bits=32;
+for (@ARGV) { $bits=64 if (/\-m64/ || /\-xarch\=v9/); }
+if ($bits==64) { $bias=2047; $frame=192; }
+else { $bias=0; $frame=112; }
+
+$output=shift;
+open STDOUT,">$output";
+
+@X=("%o0","%o1","%o2","%o3","%o4","%o5","%g1","%o7");
+$rot1m="%g2";
+$tmp64="%g3";
+$Xi="%g4";
+$A="%l0";
+$B="%l1";
+$C="%l2";
+$D="%l3";
+$E="%l4";
+@V=($A,$B,$C,$D,$E);
+$K_00_19="%l5";
+$K_20_39="%l6";
+$K_40_59="%l7";
+$K_60_79="%g5";
+@K=($K_00_19,$K_20_39,$K_40_59,$K_60_79);
+
+$ctx="%i0";
+$inp="%i1";
+$len="%i2";
+$tmp0="%i3";
+$tmp1="%i4";
+$tmp2="%i5";
+
+sub BODY_00_15 {
+my ($i,$a,$b,$c,$d,$e)=@_;
+my $xi=($i&1)?@X[($i/2)%8]:$Xi;
+
+$code.=<<___;
+ sll $a,5,$tmp0 !! $i
+ add @K[$i/20],$e,$e
+ srl $a,27,$tmp1
+ add $tmp0,$e,$e
+ and $c,$b,$tmp0
+ add $tmp1,$e,$e
+ sll $b,30,$tmp2
+ andn $d,$b,$tmp1
+ srl $b,2,$b
+ or $tmp1,$tmp0,$tmp1
+ or $tmp2,$b,$b
+ add $xi,$e,$e
+___
+if ($i&1 && $i<15) {
+ $code.=
+ " srlx @X[(($i+1)/2)%8],32,$Xi\n";
+}
+$code.=<<___;
+ add $tmp1,$e,$e
+___
+}
+
+sub Xupdate {
+my ($i,$a,$b,$c,$d,$e)=@_;
+my $j=$i/2;
+
+if ($i&1) {
+$code.=<<___;
+ sll $a,5,$tmp0 !! $i
+ add @K[$i/20],$e,$e
+ srl $a,27,$tmp1
+___
+} else {
+$code.=<<___;
+ sllx @X[($j+6)%8],32,$Xi ! Xupdate($i)
+ xor @X[($j+1)%8],@X[$j%8],@X[$j%8]
+ srlx @X[($j+7)%8],32,$tmp1
+ xor @X[($j+4)%8],@X[$j%8],@X[$j%8]
+ sll $a,5,$tmp0 !! $i
+ or $tmp1,$Xi,$Xi
+ add @K[$i/20],$e,$e !!
+ xor $Xi,@X[$j%8],@X[$j%8]
+ srlx @X[$j%8],31,$Xi
+ add @X[$j%8],@X[$j%8],@X[$j%8]
+ and $Xi,$rot1m,$Xi
+ andn @X[$j%8],$rot1m,@X[$j%8]
+ srl $a,27,$tmp1 !!
+ or $Xi,@X[$j%8],@X[$j%8]
+___
+}
+}
+
+sub BODY_16_19 {
+my ($i,$a,$b,$c,$d,$e)=@_;
+
+ &Xupdate(@_);
+ if ($i&1) {
+ $xi=@X[($i/2)%8];
+ } else {
+ $xi=$Xi;
+ $code.="\tsrlx @X[($i/2)%8],32,$xi\n";
+ }
+$code.=<<___;
+ add $tmp0,$e,$e !!
+ and $c,$b,$tmp0
+ add $tmp1,$e,$e
+ sll $b,30,$tmp2
+ add $xi,$e,$e
+ andn $d,$b,$tmp1
+ srl $b,2,$b
+ or $tmp1,$tmp0,$tmp1
+ or $tmp2,$b,$b
+ add $tmp1,$e,$e
+___
+}
+
+sub BODY_20_39 {
+my ($i,$a,$b,$c,$d,$e)=@_;
+my $xi;
+ &Xupdate(@_);
+ if ($i&1) {
+ $xi=@X[($i/2)%8];
+ } else {
+ $xi=$Xi;
+ $code.="\tsrlx @X[($i/2)%8],32,$xi\n";
+ }
+$code.=<<___;
+ add $tmp0,$e,$e !!
+ xor $c,$b,$tmp0
+ add $tmp1,$e,$e
+ sll $b,30,$tmp2
+ xor $d,$tmp0,$tmp1
+ srl $b,2,$b
+ add $tmp1,$e,$e
+ or $tmp2,$b,$b
+ add $xi,$e,$e
+___
+}
+
+sub BODY_40_59 {
+my ($i,$a,$b,$c,$d,$e)=@_;
+my $xi;
+ &Xupdate(@_);
+ if ($i&1) {
+ $xi=@X[($i/2)%8];
+ } else {
+ $xi=$Xi;
+ $code.="\tsrlx @X[($i/2)%8],32,$xi\n";
+ }
+$code.=<<___;
+ add $tmp0,$e,$e !!
+ and $c,$b,$tmp0
+ add $tmp1,$e,$e
+ sll $b,30,$tmp2
+ or $c,$b,$tmp1
+ srl $b,2,$b
+ and $d,$tmp1,$tmp1
+ add $xi,$e,$e
+ or $tmp1,$tmp0,$tmp1
+ or $tmp2,$b,$b
+ add $tmp1,$e,$e
+___
+}
+
+$code.=<<___ if ($bits==64);
+.register %g2,#scratch
+.register %g3,#scratch
+___
+$code.=<<___;
+.section ".text",#alloc,#execinstr
+
+.align 32
+.globl sha1_block_data_order
+sha1_block_data_order:
+ save %sp,-$frame,%sp
+ sllx $len,6,$len
+ add $inp,$len,$len
+
+ or %g0,1,$rot1m
+ sllx $rot1m,32,$rot1m
+ or $rot1m,1,$rot1m
+
+ ld [$ctx+0],$A
+ ld [$ctx+4],$B
+ ld [$ctx+8],$C
+ ld [$ctx+12],$D
+ ld [$ctx+16],$E
+ andn $inp,7,$tmp0
+
+ sethi %hi(0x5a827999),$K_00_19
+ or $K_00_19,%lo(0x5a827999),$K_00_19
+ sethi %hi(0x6ed9eba1),$K_20_39
+ or $K_20_39,%lo(0x6ed9eba1),$K_20_39
+ sethi %hi(0x8f1bbcdc),$K_40_59
+ or $K_40_59,%lo(0x8f1bbcdc),$K_40_59
+ sethi %hi(0xca62c1d6),$K_60_79
+ or $K_60_79,%lo(0xca62c1d6),$K_60_79
+
+.Lloop:
+ ldx [$tmp0+0],@X[0]
+ ldx [$tmp0+16],@X[2]
+ ldx [$tmp0+32],@X[4]
+ ldx [$tmp0+48],@X[6]
+ and $inp,7,$tmp1
+ ldx [$tmp0+8],@X[1]
+ sll $tmp1,3,$tmp1
+ ldx [$tmp0+24],@X[3]
+ subcc %g0,$tmp1,$tmp2 ! should be 64-$tmp1, but -$tmp1 works too
+ ldx [$tmp0+40],@X[5]
+ bz,pt %icc,.Laligned
+ ldx [$tmp0+56],@X[7]
+
+ sllx @X[0],$tmp1,@X[0]
+ ldx [$tmp0+64],$tmp64
+___
+for($i=0;$i<7;$i++)
+{ $code.=<<___;
+ srlx @X[$i+1],$tmp2,$Xi
+ sllx @X[$i+1],$tmp1,@X[$i+1]
+ or $Xi,@X[$i],@X[$i]
+___
+}
+$code.=<<___;
+ srlx $tmp64,$tmp2,$tmp64
+ or $tmp64,@X[7],@X[7]
+.Laligned:
+ srlx @X[0],32,$Xi
+___
+for ($i=0;$i<16;$i++) { &BODY_00_15($i,@V); unshift(@V,pop(@V)); }
+for (;$i<20;$i++) { &BODY_16_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)); }
+$code.=<<___;
+
+ ld [$ctx+0],@X[0]
+ ld [$ctx+4],@X[1]
+ ld [$ctx+8],@X[2]
+ ld [$ctx+12],@X[3]
+ add $inp,64,$inp
+ ld [$ctx+16],@X[4]
+ cmp $inp,$len
+
+ add $A,@X[0],$A
+ st $A,[$ctx+0]
+ add $B,@X[1],$B
+ st $B,[$ctx+4]
+ add $C,@X[2],$C
+ st $C,[$ctx+8]
+ add $D,@X[3],$D
+ st $D,[$ctx+12]
+ add $E,@X[4],$E
+ st $E,[$ctx+16]
+
+ bne `$bits==64?"%xcc":"%icc"`,.Lloop
+ andn $inp,7,$tmp0
+
+ ret
+ restore
+.type sha1_block_data_order,#function
+.size sha1_block_data_order,(.-sha1_block_data_order)
+.asciz "SHA1 block transform for SPARCv9, CRYPTOGAMS by <appro\@openssl.org>"
+.align 4
+___
+
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+print $code;
+close STDOUT;
projects / cassiopeia.git / blobdiff