Class: YTLJit::VM::Node::SendNode

Inherits:
BaseNode show all
Includes:
HaveChildlenMixin, NodeUtil, OptFlagOp, SendUtil, SendNodeCodeGen
Defined in:
lib/ytljit/vm_sendnode.rb

Overview

Send methodes

Constant Summary collapse

@@current_node = 
nil
@@special_node_tab = 
{}
@@macro_tab = 
{}
@@user_defined_method_tab = 
{}

Constants included from AbsArch

AbsArch::AL, AbsArch::BL, AbsArch::CL, AbsArch::DL, AbsArch::FUNC_ARG, AbsArch::FUNC_ARG_YTL, AbsArch::FUNC_FLOAT_ARG, AbsArch::FUNC_FLOAT_ARG_YTL, AbsArch::INDIRECT_BPR, AbsArch::INDIRECT_RETR, AbsArch::INDIRECT_SPR, AbsArch::INDIRECT_TMPR, AbsArch::INDIRECT_TMPR2, AbsArch::INDIRECT_TMPR3

Constants included from SSE

SSE::XMM0, SSE::XMM1, SSE::XMM2, SSE::XMM3, SSE::XMM4, SSE::XMM5, SSE::XMM6, SSE::XMM7

Constants inherited from BaseNode

BaseNode::ESCAPE_LEVEL

Instance Attribute Summary collapse

Attributes included from HaveChildlenMixin

#body

Attributes inherited from BaseNode

#code_space, #debug_info, #element_node_list, #id, #is_escape, #parent, #ti_observee, #ti_observer, #type

Class Method Summary collapse

Instance Method Summary collapse

Methods included from SendUtil

#compile_c_fixarg, #compile_c_fixarg_raw, #compile_c_vararg, #compile_ytl, #gen_eval_self, #signature

Methods included from NodeUtil

#search_class_top, #search_end, #search_frame_info, #search_top

Methods included from SendNodeCodeGen

#gen_make_argv

Methods included from CommonCodeGen

#dump_context, #gen_alloca, #gen_call, #gen_save_thepr

Methods included from OptFlagOp

#is_args_blockarg, #is_args_splat, #is_fcall, #is_opt_send, #is_super, #is_tailcall, #is_tailrecursion, #is_vcall

Methods inherited from BaseNode

#add_element_node, #add_element_node_backward, #add_element_node_backward_aux, #decide_type, #decide_type_core, #decide_type_once, #gen_type_inference_proc, #inference_type, #marge_element_node, #marge_type, #same_type, #search_valid_signature, #set_escape_node, #set_escape_node_backward, #ti_add_observer, #ti_changed, #ti_del_link, #ti_reset, #ti_update

Methods included from TypeListWithSignature

#add_type, #set_type_list, #type_list, #type_list_initvar

Methods included from Inspect

#inspect_by_graph

Constructor Details

#initialize(parent, func, arguments, op_flag, seqno) ⇒ SendNode

Returns a new instance of SendNode.



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# File 'lib/ytljit/vm_sendnode.rb', line 140

def initialize(parent, func, arguments, op_flag, seqno)
  super(parent)
  @func = func
  @arguments = arguments
  @opt_flag = op_flag
  @seq_no = seqno
  @next_node = @@current_node
  @@current_node = self

  @class_top = search_class_top
  @frame_info = search_frame_info

  @modified_instance_var = nil
  @modified_local_var = [{}]

  @result_cache = nil
  @method_signature = []
  @yield_signature_cache = {}

  @current_exception_table = nil
end

Instance Attribute Details

#arguments ⇒ Object

Returns the value of attribute arguments.



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# File 'lib/ytljit/vm_sendnode.rb', line 163

def arguments
  @arguments
end

#class_top ⇒ Object (readonly)

Returns the value of attribute class_top.



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# File 'lib/ytljit/vm_sendnode.rb', line 166

def class_top
  @class_top
end

#current_exception_table ⇒ Object

Returns the value of attribute current_exception_table.



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# File 'lib/ytljit/vm_sendnode.rb', line 174

def current_exception_table
  @current_exception_table
end

#frame_info ⇒ Object (readonly)

Returns the value of attribute frame_info.



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# File 'lib/ytljit/vm_sendnode.rb', line 167

def frame_info
  @frame_info
end

#func ⇒ Object

Returns the value of attribute func.



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# File 'lib/ytljit/vm_sendnode.rb', line 162

def func
  @func
end

#modified_instance_var ⇒ Object (readonly)

Returns the value of attribute modified_instance_var.



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# File 'lib/ytljit/vm_sendnode.rb', line 169

def modified_instance_var
  @modified_instance_var
end

#modified_local_var ⇒ Object (readonly)

Returns the value of attribute modified_local_var.



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# File 'lib/ytljit/vm_sendnode.rb', line 168

def modified_local_var
  @modified_local_var
end

#next_node ⇒ Object (readonly)

Returns the value of attribute next_node.



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# File 'lib/ytljit/vm_sendnode.rb', line 165

def next_node
  @next_node
end

#opt_flag ⇒ Object (readonly)

Returns the value of attribute opt_flag.



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# File 'lib/ytljit/vm_sendnode.rb', line 164

def opt_flag
  @opt_flag
end

#result_cache ⇒ Object

Returns the value of attribute result_cache.



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# File 'lib/ytljit/vm_sendnode.rb', line 170

def result_cache
  @result_cache
end

#seq_no ⇒ Object (readonly)

Returns the value of attribute seq_no.



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# File 'lib/ytljit/vm_sendnode.rb', line 171

def seq_no
  @seq_no
end

#yield_signature_cache ⇒ Object (readonly)

Returns the value of attribute yield_signature_cache.



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# File 'lib/ytljit/vm_sendnode.rb', line 172

def yield_signature_cache
  @yield_signature_cache
end

Class Method Details

.add_special_send_node(name) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 65

def self.add_special_send_node(name)
  oldcls = @@special_node_tab[name]
  if oldcls == nil or self < oldcls then
    @@special_node_tab[name] = self

  else
    raise "Illigal SendNode #{self} #{name}"
  end
end

.get_macro_tab ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 57

def self.get_macro_tab
  @@macro_tab
end

.get_user_defined_method_tab ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 61

def self.get_user_defined_method_tab
  @@user_defined_method_tab
end

.macro_expand(context, func, arguments, op_flag, seqno) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 75

def self.macro_expand(context, func, arguments, op_flag, seqno)
  if @@macro_tab[func.name] and 
      (op_flag & (0b11 << 3)) != 0 then
    cclsnode = context.current_class_node
    if context.current_method_node == nil then
      cclsnode = cclsnode.make_klassclass_node
    end

    cclsnode.klass_object.ancestors.each do |ccls|
      cnode = ClassTopNode.get_class_top_node(ccls)
      cobj = nil
      if cnode then
        cobj = cnode.klass_object
      end

      if @@user_defined_method_tab[func.name] and
          @@user_defined_method_tab[func.name].include?(cobj) then
        return nil
      end

      mproc = @@macro_tab[func.name][cobj]
      if mproc then
        args = []
        arguments[3..-1].each do |ele|
          argruby = ele.to_ruby(ToRubyContext.new).ret_code.last
          args.push eval(argruby)
        end

        # define used methods in macro
        @@macro_tab.each do |name, val|
          val.each do |rec, proc|
            if rec.is_a?(Module) then
              name1 = ("ytl__eval_" + name.to_s).to_sym
              if proc.is_a?(Proc)
                rec.class_eval {define_method(name1, &proc)}
              end
            end
          end
        end

        # call eval included method
        return mproc.call(*args)
      end
    end
  end

  nil
end

.make_send_node(parent, func, arguments, op_flag, seqno) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 124

def self.make_send_node(parent, func, arguments, op_flag, seqno)
  spcl = @@special_node_tab[func.name]
  newobj = nil
  if spcl then
    newobj = spcl.new(parent, func, arguments, op_flag, seqno)
  else
    newobj = self.new(parent, func, arguments, op_flag, seqno)
  end
  func.parent = newobj
  arguments.each do |ele|
    ele.parent = newobj
  end

  newobj
end

.node ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 53

def self.node
  @@current_node
end

Instance Method Details

#check_signature_changed(context, signat, metsigent, cursig) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 265

def check_signature_changed(context, signat, metsigent, cursig)
  if metsigent then
    if metsigent[1][1] != signat[1] then
      # Why not push, because it excepted type inference about
      # this signature after. So reduce search loop.
      @method_signature.unshift [cursig, signat]
      context.convergent = false
      signat[1].ruby_type < metsigent[1][1].ruby_type
    else
      false
    end

  else
    @method_signature.unshift [cursig, signat]
    false
  end
end

#collect_candidate_type(context) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 377

def collect_candidate_type(context)
  cursig = context.to_signature

  # get saved original signature
  metsigent = search_signature(cursig)

  # prev env
  context = @arguments[0].collect_candidate_type(context)

  # block is after detect method
  blknode = @arguments[1]

  # other
  @arguments[2.. -1].each do |arg|
    context = arg.collect_candidate_type(context)
  end

  # function select
  context = @func.collect_candidate_type(context)

  signat = signature(context)
  ysig = @yield_signature_cache[cursig]
  if ysig then
    signat[1] = blknode.decide_type_once(ysig)
  end
  if @func.is_a?(YieldNode) then
    signat[1] = cursig[0]
  end
=begin
  if changed then
    @arguments.each do |arg|
      arg.type = nil
    end
    signat = signature(context)
  end
=end

  mt, slf = get_send_method_node(cursig)
  if mt then
=begin
    changed = check_signature_changed(context, signat, 
                                      metsigent, cursig)
    if changed then
      mt.type_list(metsigent[1])[1] = []
      mt.ti_reset
    end
=end

    context = mt.collect_candidate_type(context, @arguments, signat)

    if blknode.is_a?(TopNode) then
      context.push_signature(@arguments, mt)
      # Have block
      context = collect_candidate_type_block(context, blknode, 
                                             signat, mt, cursig)
      context.pop_signature
      if signat[1] != blknode.type then
        signat[1] = blknode.type
        context = mt.collect_candidate_type(context, 
                                            @arguments, signat)
      end
    else
      context.push_signature(@arguments, mt)
      context = blknode.collect_candidate_type(context)
      context.pop_signature
    end
    same_type(self, mt, cursig, signat, context)

  else
    context = collect_candidate_type_regident(context, slf)
  end

  if @func.is_a?(YieldNode) then
    add_type(cursig, cursig[1])
    @type = nil
    decide_type_once(cursig)
  end
  @body.collect_candidate_type(context)
end

#collect_candidate_type_block(context, blknode, signat, mt, cursig) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 307

def collect_candidate_type_block(context, blknode, signat, mt, cursig)
  # traverse a nested block
  # mt and signat are set corresponding to the nest level of yield
  if @func.is_a?(YieldNode) and false then
    level = @depth
  else
    level = 0
  end
  nest = 0
  sn = nil
  while mt.yield_node.size == 0 and
      mt.send_nodes_with_block.size != 0
    sn = mt.send_nodes_with_block[0]
    mt, slf = sn.get_send_method_node(cursig)
    if mt == nil then
      return context
    end
    args = sn.arguments

    context.push_signature(args, mt)

    nest = nest + 1
    if mt.yield_node.size == 0 then
      break
    end
    ynode = mt.yield_node[0]
    yargs = ynode.arguments.dup
    (0..2).each do |n|
      cl = nest + level
      yargs[n] = context.current_method_signature_node[-1 - cl][n]
    end
    mt = args[1]
    context.push_signature(yargs, mt)
    nest = nest + 1
  end
  if sn then
    signat = sn.signature(context)
  end

  mt.yield_node.map do |ynode|
    yargs = ynode.arguments.dup
    yargs[2.. -1].each do |arg|
      context = arg.collect_candidate_type(context)
    end
    ysignat = ynode.signature(context)

    # inherit self from caller node
    # notice: this region pushed callee signature_node
    cl =   nest + level
    prevsig = context.to_signature(-2 - cl)
    inherit_from_callee(context, cursig, prevsig, ysignat, yargs, cl)
#            ysignat[1] = signat[0]
    
    # collect candidate type of block and yield
    context = blknode.collect_candidate_type(context, yargs, ysignat)
    same_type(ynode, blknode, signat, ysignat, context)
    @yield_signature_cache[cursig] = ysignat
    
    # fill type cache(@type) of block node
    blknode.type = nil
    blknode.decide_type_once(ysignat)
  end

  nest.times do 
    context.pop_signature
  end
  
  context
end

#collect_candidate_type_regident(context, slf) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 219

def collect_candidate_type_regident(context, slf)
  context
end

#collect_info(context) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 230

def collect_info(context)
  @arguments.each do |arg|
    context = arg.collect_info(context)
  end
  context = @func.collect_info(context)
  if is_fcall or is_vcall then
    # Call method of same class
    mt = @class_top.get_method_tab[@func.name]
    if mt then
      miv = mt.modified_instance_var
      if miv then
        miv.each do |vname, vall|
          context.modified_instance_var[vname] = vall
        end
      end
    end
  end

  @modified_local_var    = context.modified_local_var.last
  @modified_instance_var = context.modified_instance_var

  context = fill_result_cache(context)

  @body.collect_info(context)
end

#compile(context) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 457

def compile(context)
  context = super(context)

  @type = nil
  cursig = context.to_signature
  context.start_using_reg(TMPR2)
  context.start_using_reg(PTMPR)
  callconv = @func.calling_convention(context)
  
  case callconv
  when :c_vararg
    context = compile_c_vararg(context)
    
  when :c_fixarg
    context = compile_c_fixarg(context)

  when :c_fixarg_raw
    context = compile_c_fixarg_raw(context)

  when :ytl
    context = compile_ytl(context)

  when :getter
    inode = @func.inline_node
    context = @arguments[2].compile(context)
    rectype = @arguments[2].decide_type_once(cursig)
    context = inode.compile_main_aux(context, context.ret_reg, rectype)

  when :setter
    inode = @func.inline_node
    context = @arguments[2].compile(context)
    rectype = @arguments[2].decide_type_once(cursig)
    context = inode.compile_main_aux(context, context.ret_reg, rectype, 
                                     @arguments[3], nil)

  when nil

  else
#            p @arguments[2].type_list(context.to_signature)
#            p @func.name
#            raise "Unsupported calling conversion #{callconv}"
  end
  
  decide_type_once(cursig)
  if !@type.boxed and 
      @type.ruby_type == Float then
    context.ret_reg = XMM0
  else
    context.ret_reg = RETR
  end
  context.ret_node = self
  context.end_using_reg(PTMPR)
  context.end_using_reg(TMPR2)
  
  context = @body.compile(context)
  context
end

#fill_result_cache(context) ⇒ Object

This is for reduce method call whose all arguments is constant. But all methods can’t apply because the method may have side effect.



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# File 'lib/ytljit/vm_sendnode.rb', line 226

def fill_result_cache(context)
  context
end

#get_constant_value ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 515

def get_constant_value
  if @result_cache then
    [@result_cache]
  else
    nil
  end
end

#get_send_method_node(cursig) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 194

def get_send_method_node(cursig)
  mt = nil
  if @arguments[2].type_list(cursig) != [[], []] then
    @arguments[2].type = nil
  end
  slf = nil
  if is_fcall or is_vcall then
    slf =  @arguments[2].decide_type_once(cursig)
    mt = @func.method_top_node(@class_top, nil)
  else
    slf = @arguments[2].decide_type_once(cursig)
    if slf.instance_of?(RubyType::DefaultType0) then
      # Chaos
      #p debug_info
      #p cursig
      #p @arguments[2].instance_eval { @type_list }
      #            raise "chaos"
    end
    
    mt = @func.method_top_node(@class_top, slf)
  end

  [mt, slf]
end

#inherit_from_callee(context, cursig, prevsig, signat, args, nest) ⇒ Object

inherit self/block from caller node



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# File 'lib/ytljit/vm_sendnode.rb', line 284

def inherit_from_callee(context, cursig, prevsig, signat, args, nest)
  if context.is_a?(TypeInferenceContext) then
    (0..2).each do |n|
      args[n] = context.current_method_signature_node[-2 - nest][n]
    end
  end
  (0..2).each do |n|
    signat[n] = prevsig[n]
  end

  if args[2].decide_type_once(cursig).ruby_type == Object then
    context.current_method_signature_node.reverse.each {|e0| 
      if e0[2].class == SendNewArenaNode then
        if args[2].type then
          args[2] = e0[2]
          signat[2] = args[2].type
        end
        break
      end
    }
  end
end

#search_signature(cursig) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 256

def search_signature(cursig)
  @method_signature.each do |tabent|
    if cursig == tabent[0] then
      return tabent
    end
  end
  nil
end

#traverse_childlen {|@func| ... } ⇒ Object

Yields:



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# File 'lib/ytljit/vm_sendnode.rb', line 186

def traverse_childlen
  @arguments.each do |arg|
    yield arg
  end
  yield @func
  yield @body
end

#traverse_node(&blk) ⇒ Object 



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# File 'lib/ytljit/vm_sendnode.rb', line 176

def traverse_node(&blk)
  @arguments.each_with_index do |arg, i|
    if arg.is_a?(SendNode) then
      arg.traverse_node(&blk)
    else
      yield(arg, @arguments, i)
    end
  end
end