#!/usr/bin/env perl # # ==================================================================== # Written by Andy Polyakov 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/. # ==================================================================== # # Eternal question is what's wrong with compiler generated code? The # trick is that it's possible to reduce the number of shifts required # to perform rotations by maintaining copy of 32-bit value in upper # bits of 64-bit register. Just follow mux2 and shrp instructions... # Performance under big-endian OS such as HP-UX is 179MBps*1GHz, which # is >50% better than HP C and >2x better than gcc. $code=<<___; .ident \"sha1-ia64.s, version 1.1\" .ident \"IA-64 ISA artwork by Andy Polyakov \" .explicit ___ if ($^O eq "hpux") { $ADDP="addp4"; for (@ARGV) { $ADDP="add" if (/[\+DD|\-mlp]64/); } } else { $ADDP="add"; } for (@ARGV) { $big_endian=1 if (/\-DB_ENDIAN/); $big_endian=0 if (/\-DL_ENDIAN/); } if (!defined($big_endian)) { $big_endian=(unpack('L',pack('N',1))==1); } #$human=1; if ($human) { # useful for visual code auditing... ($A,$B,$C,$D,$E,$T) = ("A","B","C","D","E","T"); ($h0,$h1,$h2,$h3,$h4) = ("h0","h1","h2","h3","h4"); ($K_00_19, $K_20_39, $K_40_59, $K_60_79) = ( "K_00_19","K_20_39","K_40_59","K_60_79" ); @X= ( "X0", "X1", "X2", "X3", "X4", "X5", "X6", "X7", "X8", "X9","X10","X11","X12","X13","X14","X15" ); } else { ($A,$B,$C,$D,$E,$T) = ("loc0","loc1","loc2","loc3","loc4","loc5"); ($h0,$h1,$h2,$h3,$h4) = ("loc6","loc7","loc8","loc9","loc10"); ($K_00_19, $K_20_39, $K_40_59, $K_60_79) = ( "r14", "r15", "loc11", "loc12" ); @X= ( "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31" ); } sub BODY_00_15 { local *code=shift; local ($i,$a,$b,$c,$d,$e,$f,$unaligned)=@_; if ($unaligned) { $code.=<<___; { .mmi; ld1 tmp0=[inp],2 // MSB ld1 tmp1=[tmp3],2 };; { .mmi; ld1 tmp2=[inp],2 ld1 $X[$i&0xf]=[tmp3],2 // LSB dep tmp1=tmp0,tmp1,8,8 };; { .mii; cmp.ne p16,p0=r0,r0 // no misaligned prefetch dep $X[$i&0xf]=tmp2,$X[$i&0xf],8,8;; dep $X[$i&0xf]=tmp1,$X[$i&0xf],16,16 };; { .mmi; nop.m 0 ___ } elsif ($i<15) { $code.=<<___; { .mmi; ld4 $X[($i+1)&0xf]=[inp],4 // prefetch ___ } else { $code.=<<___; { .mmi; nop.m 0 ___ } if ($i<15) { $code.=<<___; and tmp0=$c,$b dep.z tmp5=$a,5,27 } // a<<5 { .mmi; andcm tmp1=$d,$b add tmp4=$e,$K_00_19 };; { .mmi; or tmp0=tmp0,tmp1 // F_00_19(b,c,d)=(b&c)|(~b&d) add $f=tmp4,$X[$i&0xf] // f=xi+e+K_00_19 extr.u tmp1=$a,27,5 };; // a>>27 { .mib; add $f=$f,tmp0 // f+=F_00_19(b,c,d) shrp $b=tmp6,tmp6,2 } // b=ROTATE(b,30) { .mib; or tmp1=tmp1,tmp5 // ROTATE(a,5) mux2 tmp6=$a,0x44 };; // see b in next iteration { .mii; add $f=$f,tmp1 // f+=ROTATE(a,5) mux2 $X[$i&0xf]=$X[$i&0xf],0x44 nop.i 0 };; ___ } else { $code.=<<___; and tmp0=$c,$b dep.z tmp5=$a,5,27 } // a<<5 ;;? { .mmi; andcm tmp1=$d,$b add tmp4=$e,$K_00_19 };; { .mmi; or tmp0=tmp0,tmp1 // F_00_19(b,c,d)=(b&c)|(~b&d) add $f=tmp4,$X[$i&0xf] // f=xi+e+K_00_19 extr.u tmp1=$a,27,5 } // a>>27 { .mmi; xor tmp2=$X[($i+0+1)&0xf],$X[($i+2+1)&0xf] // +1 xor tmp3=$X[($i+8+1)&0xf],$X[($i+13+1)&0xf] // +1 nop.i 0 };; { .mmi; add $f=$f,tmp0 // f+=F_00_19(b,c,d) xor tmp2=tmp2,tmp3 // +1 shrp $b=tmp6,tmp6,2 } // b=ROTATE(b,30) { .mmi; or tmp1=tmp1,tmp5 // ROTATE(a,5) mux2 tmp6=$a,0x44 };; // see b in next iteration { .mii; add $f=$f,tmp1 // f+=ROTATE(a,5) shrp $e=tmp2,tmp2,31 // f+1=ROTATE(x[0]^x[2]^x[8]^x[13],1) mux2 $X[$i&0xf]=$X[$i&0xf],0x44 };; ___ } } sub BODY_16_19 { local *code=shift; local ($i,$a,$b,$c,$d,$e,$f)=@_; $code.=<<___; { .mmi; mov $X[$i&0xf]=$f // Xupdate and tmp0=$c,$b dep.z tmp5=$a,5,27 } // a<<5 { .mmi; andcm tmp1=$d,$b add tmp4=$e,$K_00_19 };; { .mmi; or tmp0=tmp0,tmp1 // F_00_19(b,c,d)=(b&c)|(~b&d) add $f=$f,tmp4 // f+=e+K_00_19 extr.u tmp1=$a,27,5 } // a>>27 { .mmi; xor tmp2=$X[($i+0+1)&0xf],$X[($i+2+1)&0xf] // +1 xor tmp3=$X[($i+8+1)&0xf],$X[($i+13+1)&0xf] // +1 nop.i 0 };; { .mmi; add $f=$f,tmp0 // f+=F_00_19(b,c,d) xor tmp2=tmp2,tmp3 // +1 shrp $b=tmp6,tmp6,2 } // b=ROTATE(b,30) { .mmi; or tmp1=tmp1,tmp5 // ROTATE(a,5) mux2 tmp6=$a,0x44 };; // see b in next iteration { .mii; add $f=$f,tmp1 // f+=ROTATE(a,5) shrp $e=tmp2,tmp2,31 // f+1=ROTATE(x[0]^x[2]^x[8]^x[13],1) nop.i 0 };; ___ } sub BODY_20_39 { local *code=shift; local ($i,$a,$b,$c,$d,$e,$f,$Konst)=@_; $Konst = $K_20_39 if (!defined($Konst)); if ($i<79) { $code.=<<___; { .mib; mov $X[$i&0xf]=$f // Xupdate dep.z tmp5=$a,5,27 } // a<<5 { .mib; xor tmp0=$c,$b add tmp4=$e,$Konst };; { .mmi; xor tmp0=tmp0,$d // F_20_39(b,c,d)=b^c^d add $f=$f,tmp4 // f+=e+K_20_39 extr.u tmp1=$a,27,5 } // a>>27 { .mmi; xor tmp2=$X[($i+0+1)&0xf],$X[($i+2+1)&0xf] // +1 xor tmp3=$X[($i+8+1)&0xf],$X[($i+13+1)&0xf] // +1 nop.i 0 };; { .mmi; add $f=$f,tmp0 // f+=F_20_39(b,c,d) xor tmp2=tmp2,tmp3 // +1 shrp $b=tmp6,tmp6,2 } // b=ROTATE(b,30) { .mmi; or tmp1=tmp1,tmp5 // ROTATE(a,5) mux2 tmp6=$a,0x44 };; // see b in next iteration { .mii; add $f=$f,tmp1 // f+=ROTATE(a,5) shrp $e=tmp2,tmp2,31 // f+1=ROTATE(x[0]^x[2]^x[8]^x[13],1) nop.i 0 };; ___ } else { $code.=<<___; { .mib; mov $X[$i&0xf]=$f // Xupdate dep.z tmp5=$a,5,27 } // a<<5 { .mib; xor tmp0=$c,$b add tmp4=$e,$Konst };; { .mib; xor tmp0=tmp0,$d // F_20_39(b,c,d)=b^c^d extr.u tmp1=$a,27,5 } // a>>27 { .mib; add $f=$f,tmp4 // f+=e+K_20_39 add $h1=$h1,$a };; // wrap up { .mmi; (p16) ld4.s $X[0]=[inp],4 // non-faulting prefetch add $f=$f,tmp0 // f+=F_20_39(b,c,d) shrp $b=tmp6,tmp6,2 } // b=ROTATE(b,30) ;;? { .mmi; or tmp1=tmp1,tmp5 // ROTATE(a,5) add $h3=$h3,$c };; // wrap up { .mib; add tmp3=1,inp // used in unaligned codepath add $f=$f,tmp1 } // f+=ROTATE(a,5) { .mib; add $h2=$h2,$b // wrap up add $h4=$h4,$d };; // wrap up ___ } } sub BODY_40_59 { local *code=shift; local ($i,$a,$b,$c,$d,$e,$f)=@_; $code.=<<___; { .mmi; mov $X[$i&0xf]=$f // Xupdate and tmp0=$c,$b dep.z tmp5=$a,5,27 } // a<<5 { .mmi; and tmp1=$d,$b add tmp4=$e,$K_40_59 };; { .mmi; or tmp0=tmp0,tmp1 // (b&c)|(b&d) add $f=$f,tmp4 // f+=e+K_40_59 extr.u tmp1=$a,27,5 } // a>>27 { .mmi; and tmp4=$c,$d xor tmp2=$X[($i+0+1)&0xf],$X[($i+2+1)&0xf] // +1 xor tmp3=$X[($i+8+1)&0xf],$X[($i+13+1)&0xf] // +1 };; { .mmi; or tmp1=tmp1,tmp5 // ROTATE(a,5) xor tmp2=tmp2,tmp3 // +1 shrp $b=tmp6,tmp6,2 } // b=ROTATE(b,30) { .mmi; or tmp0=tmp0,tmp4 // F_40_59(b,c,d)=(b&c)|(b&d)|(c&d) mux2 tmp6=$a,0x44 };; // see b in next iteration { .mii; add $f=$f,tmp0 // f+=F_40_59(b,c,d) shrp $e=tmp2,tmp2,31;; // f+1=ROTATE(x[0]^x[2]^x[8]^x[13],1) add $f=$f,tmp1 };; // f+=ROTATE(a,5) ___ } sub BODY_60_79 { &BODY_20_39(@_,$K_60_79); } $code.=<<___; .text tmp0=r8; tmp1=r9; tmp2=r10; tmp3=r11; ctx=r32; // in0 inp=r33; // in1 // void sha1_block_asm_data_order(SHA_CTX *c,const void *p,size_t num); .global sha1_block_asm_data_order# .proc sha1_block_asm_data_order# .align 32 sha1_block_asm_data_order: .prologue { .mmi; alloc tmp1=ar.pfs,3,15,0,0 $ADDP tmp0=4,ctx .save ar.lc,r3 mov r3=ar.lc } { .mmi; $ADDP ctx=0,ctx $ADDP inp=0,inp mov r2=pr };; tmp4=in2; tmp5=loc13; tmp6=loc14; .body { .mlx; ld4 $h0=[ctx],8 movl $K_00_19=0x5a827999 } { .mlx; ld4 $h1=[tmp0],8 movl $K_20_39=0x6ed9eba1 };; { .mlx; ld4 $h2=[ctx],8 movl $K_40_59=0x8f1bbcdc } { .mlx; ld4 $h3=[tmp0] movl $K_60_79=0xca62c1d6 };; { .mmi; ld4 $h4=[ctx],-16 add in2=-1,in2 // adjust num for ar.lc mov ar.ec=1 };; { .mmi; nop.m 0 add tmp3=1,inp mov ar.lc=in2 };; // brp.loop.imp: too far .Ldtop: { .mmi; mov $A=$h0 mov $B=$h1 mux2 tmp6=$h1,0x44 } { .mmi; mov $C=$h2 mov $D=$h3 mov $E=$h4 };; ___ { my $i,@V=($A,$B,$C,$D,$E,$T); for($i=0;$i<16;$i++) { &BODY_00_15(\$code,$i,@V,1); unshift(@V,pop(@V)); } for(;$i<20;$i++) { &BODY_16_19(\$code,$i,@V); unshift(@V,pop(@V)); } for(;$i<40;$i++) { &BODY_20_39(\$code,$i,@V); unshift(@V,pop(@V)); } for(;$i<60;$i++) { &BODY_40_59(\$code,$i,@V); unshift(@V,pop(@V)); } for(;$i<80;$i++) { &BODY_60_79(\$code,$i,@V); unshift(@V,pop(@V)); } (($V[5] eq $D) and ($V[0] eq $E)) or die; # double-check } $code.=<<___; { .mmb; add $h0=$h0,$E nop.m 0 br.ctop.dptk.many .Ldtop };; .Ldend: { .mmi; add tmp0=4,ctx mov ar.lc=r3 };; { .mmi; st4 [ctx]=$h0,8 st4 [tmp0]=$h1,8 };; { .mmi; st4 [ctx]=$h2,8 st4 [tmp0]=$h3 };; { .mib; st4 [ctx]=$h4,-16 mov pr=r2,0x1ffff br.ret.sptk.many b0 };; .endp sha1_block_asm_data_order# ___ print $code;