Commit b5516cfb authored by Andy Polyakov's avatar Andy Polyakov
Browse files

perlasm/ppc-xlate.pl: comply with ABIs that specify vrsave as reserved.



RT#4162

Reviewed-by: default avatarRichard Levitte <levitte@openssl.org>
parent 1bbea403
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+20 −0
Original line number Diff line number Diff line
@@ -151,6 +151,26 @@ my $vmr = sub {
    "	vor	$vx,$vy,$vy";
};

# Some ABIs specify vrsave, special-purpose register #256, as reserved
# for system use.
my $no_vrsave = ($flavour =~ /aix|linux64le/);
my $mtspr = sub {
    my ($f,$idx,$ra) = @_;
    if ($idx == 256 && $no_vrsave) {
	"	or	$ra,$ra,$ra";
    } else {
	"	mtspr	$idx,$ra";
    }
};
my $mfspr = sub {
    my ($f,$rd,$idx) = @_;
    if ($idx == 256 && $no_vrsave) {
	"	li	$rd,-1";
    } else {
	"	mfspr	$rd,$idx";
    }
};

# PowerISA 2.06 stuff
sub vsxmem_op {
    my ($f, $vrt, $ra, $rb, $op) = @_;