Class: YTLJit::TypedData

Inherits:
Object show all
Includes:
AbsArch
Defined in:
lib/ytljit/asmext.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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(type, ent) ⇒ TypedData

Returns a new instance of TypedData.



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# File 'lib/ytljit/asmext.rb', line 8

def initialize(type, ent)
  @type = type
  @entity = ent
end

Instance Attribute Details

#entity ⇒ Object (readonly)

Returns the value of attribute entity.



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

def entity
  @entity
end

#type ⇒ Object (readonly)

Returns the value of attribute type.



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# File 'lib/ytljit/asmext.rb', line 13

def type
  @type
end

Instance Method Details

#[](arg) ⇒ Object 



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# File 'lib/ytljit/asmext.rb', line 16

def [](arg)
  TypedData.new(@type[arg], @entity)
end

#gen_access(gen) ⇒ Object 



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

def gen_access(gen)
  asm = gen.asm
  base = @entity
  case @type
  when AsmType::Scalar, AsmType::Pointer, AsmType::Array
    if @type == AsmType::DOUBLE then
      code = ""
      code += asm.update_state(gen.movsd(XMM0, base))
      [code, @type]
    else
      if base != TMPR then
        code = ""
        code += asm.update_state(gen.mov(TMPR, base))
        [code, @type]
      else
        ["", @type]
      end
    end

  when AsmType::StructMember
    code = ""

    oi = nil
    if base.is_a?(OpRegXMM) then
      oi = base
      
    elsif base != TMPR then
      code += asm.update_state(gen.call_stephandler)  if code != ""
      code += asm.update_state(gen.mov(TMPR, base))
      oi = OpIndirect.new(TMPR, @type.offset)

    else
      oi = OpIndirect.new(TMPR, @type.offset)
    end

    if @type.type == AsmType::DOUBLE then
      code += asm.update_state(gen.call_stephandler)  if code != ""
      code += asm.update_state(gen.movsd(XMM0, oi))

    elsif @type.type.is_a?(AsmType::Array) then
      code += asm.update_state(gen.call_stephandler) if code != ""
      code += asm.update_state(gen.lea(TMPR, oi))

    else
      code += asm.update_state(gen.call_stephandler)  if code != ""
      code += asm.update_state(gen.mov(TMPR, oi))

    end
    [code, @type.type]

  when AsmType::PointedData
    # Now support only index == 0
    code = ""
    if base != TMPR then
      code += asm.update_state(gen.mov(TMPR,  base))
    end
    if @type.offset != 0 then
      oi = OpIndirect.new(TMPR, @type.offset)
      code += asm.update_state(gen.call_stephandler)  if code != ""
      code += asm.update_state(gen.lea(TMPR, oi))
    end
    ineax = OpIndirect.new(TMPR)
    code += asm.update_state(gen.call_stephandler) if code != ""
    code += asm.update_state(gen.mov(TMPR,  ineax))
    [code, @type.type]
  end
end