Class: YTLJit::VM::Node::MultiplexNode

Inherits:
BaseNode show all
Includes:
HaveChildlenMixin, NodeUtil
Defined in:
lib/ytljit/vm.rb

Overview

Multiplexer of node (Using YARV stack operation)

Constant Summary

Constants inherited from BaseNode

BaseNode::ESCAPE_LEVEL

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

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

Instance Method Summary collapse

Methods included from NodeUtil

#search_class_top, #search_end, #search_frame_info, #search_top

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, #get_constant_value, #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, node) ⇒ MultiplexNode

Returns a new instance of MultiplexNode.



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# File 'lib/ytljit/vm.rb', line 2623

def initialize(parent, node)
  super(parent)
  @node = node
  @compiled_by_signature = []
  @res_area = nil
end

Instance Attribute Details

#node ⇒ Object (readonly)

Returns the value of attribute node.



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# File 'lib/ytljit/vm.rb', line 2630

def node
  @node
end

Instance Method Details

#collect_candidate_type(context) ⇒ Object 



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# File 'lib/ytljit/vm.rb', line 2643

def collect_candidate_type(context)
  sig = context.to_signature          
  same_type(self, @node, sig, sig, context)
  same_type(@node, self, sig, sig, context)
  @node.collect_candidate_type(context)
end

#collect_info(context) ⇒ Object 



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# File 'lib/ytljit/vm.rb', line 2636

def collect_info(context)
  tnode = search_frame_info
  offset = tnode.static_alloca(8)
  @res_area = OpIndirect.new(BPR, offset)
  @node.collect_info(context)
end

#compile(context) ⇒ Object 



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# File 'lib/ytljit/vm.rb', line 2650

def compile(context)
  sig = context.to_signature
  if !@compiled_by_signature.include?(sig) then
    context = @node.compile(context)
    asm = context.assembler
    if context.ret_reg.is_a?(OpRegistor) then
      asm.with_retry do
        asm.mov(@res_area, context.ret_reg)
      end
      context.set_reg_content(@res_area, context.ret_node)
    else
      asm.with_retry do
        asm.mov(TMPR, context.ret_reg)
        asm.mov(@res_area, TMPR)
      end
      context.set_reg_content(@res_area, context.ret_node)
    end
    context.set_reg_content(@res_area, self)
    @compiled_by_signature.push sig
  else
    asm = context.assembler
    rtype = decide_type_once(sig)
    if rtype.ruby_type == Float and !rtype.boxed then
      asm.with_retry do
        asm.movsd(XMM0, @res_area)
      end
      context.set_reg_content(XMM0, self)
      context.ret_reg = XMM0
    else
      asm.with_retry do
        asm.mov(RETR, @res_area)
      end
      context.set_reg_content(RETR, self)
      context.ret_reg = RETR
    end
    context.ret_node = self
  end

  context
end

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

Yields:



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# File 'lib/ytljit/vm.rb', line 2632

def traverse_childlen
  yield @node
end