Class: YTLJit::VM::Node::CRubyInstanceVarRefNode

Inherits:
InstanceVarRefNode show all
Includes:
CommonCodeGen, TypeListWithoutSignature, UnboxedArrayUtil
Defined in:
lib/ytljit/vm_cruby_obj.rb

Constant Summary

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

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 UnboxedArrayUtil

#compile_array_unboxed, #gen_ref_element, #gen_set_element

Methods included from UnboxedObjectUtil

#compile_object_unboxed

Methods included from CommonCodeGen

#dump_context, #gen_alloca, #gen_call, #gen_save_thepr

Methods included from TypeListWithoutSignature

#add_type, #set_type_list, #type_list, #type_list_initvar

Methods inherited from InstanceVarRefNode

#collect_candidate_type, #collect_info, #compile

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, #collect_candidate_type, #collect_info, #compile, #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, name, mnode) ⇒ CRubyInstanceVarRefNode

Returns a new instance of CRubyInstanceVarRefNode.



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# File 'lib/ytljit/vm_cruby_obj.rb', line 9

def initialize(parent, name, mnode)
  super
  @current_frame_info = search_frame_info
end

Instance Method Details

#compile_main(context) ⇒ Object 



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# File 'lib/ytljit/vm_cruby_obj.rb', line 14

def compile_main(context)
  slfoff = @current_frame_info.offset_arg(2, BPR)
  cursig = context.to_signature
  compile_main_aux(context, slfoff, cursig[2])
end

#compile_main_aux(context, slfcont, slftype) ⇒ Object 



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# File 'lib/ytljit/vm_cruby_obj.rb', line 20

def compile_main_aux(context, slfcont, slftype)
  mivl = @class_top.end_nodes[0].modified_instance_var.keys
  off = mivl.index(@name)
  cursig = context.to_signature
  asm = context.assembler

  if !slftype.boxed then
    context.start_using_reg(TMPR2)
    asm.with_retry do
      asm.mov(TMPR2, slfcont)
    end
    context = gen_ref_element(context, nil, off)
    context.end_using_reg(TMPR2)
    rtype = decide_type_once(cursig)
    if rtype.ruby_type == Float and !rtype.boxed then
      asm.with_retry do
        asm.mov(XMM0, context.ret_reg)
      end
      context.ret_reg = XMM0
    else
      asm.with_retry do
        asm.mov(RETR, context.ret_reg)
      end
      context.ret_reg = RETR
    end
    return context
  end

  addr = lambda {
    a = address_of("ytl_ivar_get_boxing")
    $symbol_table[a] = "ytl_ivar_get_boxing"
    a
  }
  ivarget = OpVarMemAddress.new(addr)
  context.start_arg_reg
  asm.with_retry do
    asm.mov(FUNC_ARG[0], slfcont)
    asm.mov(FUNC_ARG[1], off)
  end
  context = gen_save_thepr(context)
  context = gen_call(context, ivarget, 2)

  context.end_arg_reg
  context.ret_reg = RETR
  context.ret_node = self
  decide_type_once(cursig)
  if !@type.boxed then 
    context = @type.to_box.gen_unboxing(context)
  end
  context
end