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perlasm/x86*: add support to SSE>2 and pclmulqdq. x86_64-xlate.pl provides

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correct solution to problem addressed in committ #19244.
This commit is contained in:
Andy Polyakov 2010-04-10 13:55:05 +00:00
parent 9a649f3b46
commit fead253986
2 changed files with 103 additions and 5 deletions
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81
crypto/perlasm/x86_64-xlate.pl
View File

@ -115,7 +115,9 @@ my %globals;
$self->{op} = $1;
$self->{sz} = "b";
} elsif ($self->{op} =~ /call|jmp/) {
$self->{sz} = ""
$self->{sz} = "";
} elsif ($self->{op} =~ /^p/ && $' !~ /^(ush|op)/) { # SSEn
$self->{sz} = "";
} elsif ($self->{op} =~ /([a-z]{3,})([qlwb])$/) {
$self->{op} = $1;
$self->{sz} = $2;
@ -574,11 +576,11 @@ my %globals;
/\.align/ && do { $self->{value} = "ALIGN\t".$line; last; };
/\.(value|long|rva|quad)/
&& do { my $sz = substr($1,0,1);
my @arr = split(',',$line);
my @arr = split(/,\s*/,$line);
my $last = pop(@arr);
my $conv = sub { my $var=shift;
$var=~s/^(0b[0-1]+)/oct($1)/eig;
$var=~s/0x([0-9a-f]+)/0$1h/ig if ($masm);
$var=~s/^0x([0-9a-f]+)/0$1h/ig if ($masm);
if ($sz eq "D" && ($current_segment=~/.[px]data/ || $dir eq ".rva"))
{ $var=~s/([_a-z\$\@][_a-z0-9\$\@]*)/$nasm?"$1 wrt ..imagebase":"imagerel $1"/egi; }
$var;
@ -590,7 +592,7 @@ my %globals;
$self->{value} .= &$conv($last);
last;
};
/\.byte/ && do { my @str=split(",",$line);
/\.byte/ && do { my @str=split(/,\s*/,$line);
map(s/(0b[0-1]+)/oct($1)/eig,@str);
map(s/0x([0-9a-f]+)/0$1h/ig,@str) if ($masm);
while ($#str>15) {
@ -614,6 +616,71 @@ my %globals;
}
}
sub rex {
local *opcode=shift;
my ($dst,$src)=@_;
if ($dst>=8 || $src>=8) {
$rex=0x40;
$rex|=0x04 if($dst>=8);
$rex|=0x01 if($src>=8);
push @opcode,$rex;
}
}
# older gas doesn't handle SSE>2 instructions
my %regrm = ( "%eax"=>0, "%ecx"=>1, "%edx"=>2, "%ebx"=>3,
"%esp"=>4, "%ebp"=>5, "%esi"=>6, "%edi"=>7 );
my $pextrd = sub {
my ($imm,$src,$dst) = @_;
if ("$imm:$src" =~ /\$([0-9]+):%xmm([0-9]+)/) {
my @opcode=(0x66);
$imm=$1;
$src=$2;
if ($dst =~ /%r([0-9]+)d/) { $dst = $1; }
elsif ($dst =~ /%e/) { $dst = $regrm{$dst}; }
rex(\@opcode,$src,$dst);
push @opcode,0x0f,0x3a,0x16;
push @opcode,0xc0|(($src&7)<<3)|($dst&7); # ModR/M
push @opcode,$imm;
printf "\t.byte\t%s\n",join(',',@opcode);
} else {
printf "\tpextrd\t%s\n",join(',',@_);
}
} if ($gas);
my $pinsrd = sub {
my ($imm,$src,$dst) = @_;
if ("$imm:$dst" =~ /\$([0-9]+):%xmm([0-9]+)/) {
my @opcode=(0x66);
$imm=$1;
$dst=$2;
if ($src =~ /%r([0-9]+)d/) { $src = $1; }
elsif ($src =~ /%e/) { $src = $regrm{$src}; }
rex(\@opcode,$dst,$src);
push @opcode,0x0f,0x3a,0x22;
push @opcode,0xc0|(($dst&7)<<3)|($src&7); # ModR/M
push @opcode,$imm;
printf "\t.byte\t%s\n",join(',',@opcode);
} else {
printf "\tpinsrd\t%s\n",join(',',@_);
}
} if ($gas);
my $pshufb = sub {
my ($src,$dst) = @_;
if ("$dst:$src" =~ /%xmm([0-9]+):%xmm([0-9]+)/) {
my @opcode=(0x66);
rex(\@opcode,$1,$2);
push @opcode,0x0f,0x38,0x00;
push @opcode,0xc0|($2&7)|(($1&7)<<3); # ModR/M
printf "\t.byte\t%s\n",join(',',@opcode);
} else {
printf "\tpshufb\t%s\n",join(',',@_);
}
} if ($gas);
if ($nasm) {
print <<___;
default rel
@ -662,13 +729,17 @@ while($line=<>) {
my $insn;
if ($gas) {
$insn = $opcode->out($#args>=1?$args[$#args]->size():$sz);
@args = map($_->out($sz),@args);
my $asm = eval("\$$insn");
if (ref($asm) eq 'CODE') { &$asm(@args); }
else { printf "\t%s\t%s",$insn,join(",",@args); }
} else {
$insn = $opcode->out();
$insn .= $sz if (map($_->out() =~ /xmm|mmx/,@args));
@args = reverse(@args);
undef $sz if ($nasm && $opcode->mnemonic() eq "lea");
printf "\t%s\t%s",$insn,join(",",map($_->out($sz),@args));
}
printf "\t%s\t%s",$insn,join(",",map($_->out($sz),@args));
} else {
printf "\t%s",$opcode->out();
}

27
crypto/perlasm/x86asm.pl
View File

@ -80,6 +80,27 @@ sub ::movq
{ &::generic("movq",@_); }
}
# SSE>2 instructions
my %regrm = ( "eax"=>0, "ecx"=>1, "edx"=>2, "ebx"=>3,
"esp"=>4, "ebp"=>5, "esi"=>6, "edi"=>7 );
sub ::pextrd
{ my($dst,$src,$imm)=@_;
if ("$dst:$src" =~ /(e[a-dsd][ixp]):xmm([0-7])/)
{ &data_byte(0x66,0x0f,0x3a,0x16,0xc0|($2<<3)|$regrm{$1},$imm); }
}
sub ::pinsrd
{ my($dst,$src,$imm)=@_;
if ("$dst:$src" =~ /xmm([0-7]):(e[a-dsd][ixp])/)
{ &data_byte(0x66,0x0f,0x3a,0x22,0xc0|($1<<3)|$regrm{$2},$imm); }
}
sub ::pshufb
{ my($dst,$src)=@_;
if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
{ &data_byte(0x66,0x0f,0x38,0x00,0xc0|($1<<3)|$2); }
}
# AESNI extenstion
sub ::aeskeygenassist
{ my($dst,$src,$imm)=@_;
@ -97,6 +118,12 @@ sub ::aesenclast { ::aescommon(0xdd,@_); }
sub ::aesdec { ::aescommon(0xde,@_); }
sub ::aesdeclast { ::aescommon(0xdf,@_); }
sub ::pclmulqdq
{ my($dst,$src,$imm)=@_;
if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
{ &data_byte(0x66,0x0f,0x3a,0x44,0xc0|($1<<3)|$2,$imm); }
}
# label management
$lbdecor="L"; # local label decoration, set by package
$label="000";