diff options
Diffstat (limited to 'erts')
| -rwxr-xr-x | erts/emulator/utils/beam_makeops | 55 |
1 files changed, 29 insertions, 26 deletions
diff --git a/erts/emulator/utils/beam_makeops b/erts/emulator/utils/beam_makeops index 322d60b00e..c8550df1e2 100755 --- a/erts/emulator/utils/beam_makeops +++ b/erts/emulator/utils/beam_makeops @@ -453,15 +453,7 @@ while (<>) { # Parse specific instructions (only present in emulator/loader): # Name Arg1 Arg2... # - my($name, @args) = split; - error("too many operands") - if @args > $max_spec_operands; - syntax_check($name, @args); - my $arity = @args; - if (defined $gen_opnum{$name,$arity} and $obsolete[$gen_opnum{$name,$arity}]) { - error("specific instructions may not be specified for obsolete instructions"); - } - save_specific_ops($name, $arity, $hotness, @args); + my($name,$arity) = parse_specific_op($_); if (defined $op_num) { error("specific instructions must not be numbered"); } elsif (!defined($gen_arity{$name}) && !defined($unnumbered{$name,$arity})) { @@ -981,40 +973,51 @@ sub compiler_output { } # -# Check an operation for validity. +# Parse and store a specific operation. # -sub syntax_check { - my($name, @args) = @_; - my($i); +sub parse_specific_op { + my($name, @args) = split " ", shift; + my $arity = @args; + # Check for various errors. error("Bad opcode name '$name'") unless $name =~ /^[a-z][\w\d_]*$/; - for ($i = 0; $i < @args; $i++) { + error("too many operands") + if @args > $max_spec_operands; + for (my $i = 0; $i < $arity; $i++) { foreach my $type (split(//, $args[$i])) { error("Argument " . ($i+1) . ": invalid type '$type'") unless defined $arg_size{$type}; } } -} - -sub save_specific_ops { - my($name,$arity,$hot,@args) = @_; - my(@res) = (""); + if (defined $gen_opnum{$name,$arity} and $obsolete[$gen_opnum{$name,$arity}]) { + error("specific instructions may not be specified for obsolete instructions"); + } + # Expand operands with multiple types to multiple instructions. + # (For example, "get_list xy xy xy" will be expanded to six instructions.) + my @res = ([]); foreach my $arg (@args) { - my @new_res = (); + my @old_res = @res; + @res = (); foreach my $type (split(//, $arg)) { - foreach my $args (@res) { - push @new_res, "$args$type"; + foreach my $args_ref (@old_res) { + my @args = @$args_ref; + push @args, $type; + push @res, \@args; } } - @res = @new_res; } + + # Store each specific instruction. my $key = "$name/$arity"; - foreach my $args (@res) { - @args = split //, $args; - push @{$specific_op{$key}}, [$name,$hot,@args]; + foreach my $args_ref (@res) { + @args = @$args_ref; + push @{$specific_op{$key}}, [$name,$hotness,@args]; } + + # Done. + ($name,$arity); } sub parse_c_args { |