Module: YTLJit::VM::CompareOperationUtil

Included in:

Node::SendCompareNode

Defined in:

lib/ytljit/vm_inline_method.rb

Instance Method Summary

• #gen_compare_operation(context, cinst, sinst, tempreg, tempreg2, resreg, dounbox = true) ⇒ Object

Instance Method Details

#gen_compare_operation(context, cinst, sinst, tempreg, tempreg2, resreg, dounbox = true) ⇒ Object

# File 'lib/ytljit/vm_inline_method.rb', line 135

def gen_compare_operation(context, cinst, sinst, 
                          tempreg, tempreg2, resreg, dounbox = true)
  context.start_using_reg(tempreg)
  asm = context.assembler
  asm.with_retry do
    asm.mov(tempreg, context.ret_reg)
  end
  context.set_reg_content(tempreg, context.ret_node)
  
  # @arguments[1] is block
  # @arguments[2] is self
  # @arguments[3] is other arg
  aele = @arguments[3]
  context = aele.compile(context)
  context.ret_node.type = nil
  rtype = context.ret_node.decide_type_once(context.to_signature)
  if dounbox then
    context = rtype.gen_unboxing(context)
  end
    
  asm = context.assembler
  if context.ret_reg != tempreg2 then
    if tempreg2.is_a?(OpRegXMM) and 
        !context.ret_reg.is_a?(OpRegXMM) then
      asm.with_retry do
        asm.cvtsi2sd(tempreg2, context.ret_reg)
      end
    elsif !tempreg2.is_a?(OpRegXMM) and 
        context.ret_reg.is_a?(OpRegXMM) then
      asm.with_retry do
        asm.cvtsd2si(tempreg2, context.ret_reg)
      end
    else
      asm.with_retry do
        asm.mov(tempreg2, context.ret_reg)
      end
    end
  end
  context.set_reg_content(tempreg2, context.ret_node)
  asm.with_retry do
    asm.send(cinst, tempreg2, tempreg)
    asm.send(sinst, resreg)
    asm.add(resreg, resreg)
    context.set_reg_content(resreg, context.ret_node)
  end
  context.end_using_reg(tempreg)
  
  context.ret_node = self
  context.ret_reg = resreg
  
  decide_type_once(context.to_signature)
  
  context
end