tighter integration with factory methods for adding code

define methods to collapse the code Register.
in add_code Register.factory_method
most instructions done, except op and branch that are rare
This commit is contained in:
Torsten Ruger 2016-12-28 20:37:54 +02:00
parent 8cfcb84c8d
commit e551732f18
13 changed files with 79 additions and 73 deletions

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@ -17,8 +17,8 @@ module Register
# Load the value # Load the value
def load_int_arg_at(compiler, source , at) def load_int_arg_at(compiler, source , at)
int_arg = compiler.use_reg :Integer int_arg = compiler.use_reg :Integer
compiler.add_code Register.slot_to_reg(source , :message , :arguments , int_arg ) compiler.add_slot_to_reg(source , :message , :arguments , int_arg )
compiler.add_code Register.slot_to_reg(source , int_arg , at + 1, int_arg ) #1 for type compiler.add_slot_to_reg(source , int_arg , at + 1, int_arg ) #1 for type
return int_arg return int_arg
end end

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@ -25,47 +25,47 @@ module Register
# int tmp = self >> 1 # int tmp = self >> 1
compiler.add_code Register.op( s , ">>" , tmp , const) compiler.add_code Register.op( s , ">>" , tmp , const)
# int q = self >> 2 # int q = self >> 2
compiler.add_code Register.load_constant( s , 2 , const) compiler.add_load_constant( s , 2 , const)
compiler.add_code Register.op( s , ">>" , q , const) compiler.add_code Register.op( s , ">>" , q , const)
# q = q + tmp # q = q + tmp
compiler.add_code Register.op( s , "+" , q , tmp ) compiler.add_code Register.op( s , "+" , q , tmp )
# tmp = q >> 4 # tmp = q >> 4
compiler.add_code Register.load_constant( s , 4 , const) compiler.add_load_constant( s , 4 , const)
compiler.add_code Register.transfer( s, q , tmp) compiler.add_transfer( s, q , tmp)
compiler.add_code Register.op( s , ">>" , tmp , const) compiler.add_code Register.op( s , ">>" , tmp , const)
# q = q + tmp # q = q + tmp
compiler.add_code Register.op( s , "+" , q , tmp ) compiler.add_code Register.op( s , "+" , q , tmp )
# tmp = q >> 8 # tmp = q >> 8
compiler.add_code Register.load_constant( s , 8 , const) compiler.add_load_constant( s , 8 , const)
compiler.add_code Register.transfer( s, q , tmp) compiler.add_transfer( s, q , tmp)
compiler.add_code Register.op( s , ">>" , tmp , const) compiler.add_code Register.op( s , ">>" , tmp , const)
# q = q + tmp # q = q + tmp
compiler.add_code Register.op( s , "+" , q , tmp ) compiler.add_code Register.op( s , "+" , q , tmp )
# tmp = q >> 16 # tmp = q >> 16
compiler.add_code Register.load_constant( s , 16 , const) compiler.add_load_constant( s , 16 , const)
compiler.add_code Register.transfer( s, q , tmp) compiler.add_transfer( s, q , tmp)
compiler.add_code Register.op( s , ">>" , tmp , const) compiler.add_code Register.op( s , ">>" , tmp , const)
# q = q + tmp # q = q + tmp
compiler.add_code Register.op( s , "+" , q , tmp ) compiler.add_code Register.op( s , "+" , q , tmp )
# q = q >> 3 # q = q >> 3
compiler.add_code Register.load_constant( s , 3 , const) compiler.add_load_constant( s , 3 , const)
compiler.add_code Register.op( s , ">>" , q , const) compiler.add_code Register.op( s , ">>" , q , const)
# tmp = q * 10 # tmp = q * 10
compiler.add_code Register.load_constant( s , 10 , const) compiler.add_load_constant( s , 10 , const)
compiler.add_code Register.transfer( s, q , tmp) compiler.add_transfer( s, q , tmp)
compiler.add_code Register.op( s , "*" , tmp , const) compiler.add_code Register.op( s , "*" , tmp , const)
# tmp = self - tmp # tmp = self - tmp
compiler.add_code Register.op( s , "-" , me , tmp ) compiler.add_code Register.op( s , "-" , me , tmp )
compiler.add_code Register.transfer( s , me , tmp) compiler.add_transfer( s , me , tmp)
# tmp = tmp + 6 # tmp = tmp + 6
compiler.add_code Register.load_constant( s , 6 , const) compiler.add_load_constant( s , 6 , const)
compiler.add_code Register.op( s , "+" , tmp , const ) compiler.add_code Register.op( s , "+" , tmp , const )
# tmp = tmp >> 4 # tmp = tmp >> 4
compiler.add_code Register.load_constant( s , 4 , const) compiler.add_load_constant( s , 4 , const)
compiler.add_code Register.op( s , ">>" , tmp , const ) compiler.add_code Register.op( s , ">>" , tmp , const )
# return q + tmp # return q + tmp
compiler.add_code Register.op( s , "+" , q , tmp ) compiler.add_code Register.op( s , "+" , q , tmp )
compiler.add_code Register.reg_to_slot( s , q , :message , :return_value) compiler.add_reg_to_slot( s , q , :message , :return_value)
return compiler.method return compiler.method
end end
end end

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@ -13,14 +13,14 @@ module Register
space = Parfait::Space.object_space space = Parfait::Space.object_space
space_reg = compiler.use_reg(:Space) #Set up the Space as self upon init space_reg = compiler.use_reg(:Space) #Set up the Space as self upon init
compiler.add_code Register.load_constant("__init__ load Space", space , space_reg) compiler.add_load_constant("__init__ load Space", space , space_reg)
message_ind = Register.resolve_to_index( :space , :first_message ) message_ind = Register.resolve_to_index( :space , :first_message )
compiler.add_code Register.slot_to_reg( "__init__ load 1st message" , space_reg , message_ind , :message) compiler.add_slot_to_reg( "__init__ load 1st message" , space_reg , message_ind , :message)
compiler.add_code Register.reg_to_slot( "__init__ store Space in message", space_reg , :message , :receiver) compiler.add_reg_to_slot( "__init__ store Space in message", space_reg , :message , :receiver)
exit_label = Register.label("_exit_label for __init__" , "#{compiler.type.object_class.name}.#{compiler.method.name}" ) exit_label = Register.label("_exit_label for __init__" , "#{compiler.type.object_class.name}.#{compiler.method.name}" )
ret_tmp = compiler.use_reg(:Label) ret_tmp = compiler.use_reg(:Label)
compiler.add_code Register.load_constant("__init__ load return", exit_label , ret_tmp) compiler.add_load_constant("__init__ load return", exit_label , ret_tmp)
compiler.add_code Register.reg_to_slot("__init__ store return", ret_tmp , :message , :return_address) compiler.add_reg_to_slot("__init__ store return", ret_tmp , :message , :return_address)
compiler.add_code Register.function_call( "__init__ issue call" , Register.machine.space.get_main ) compiler.add_code Register.function_call( "__init__ issue call" , Register.machine.space.get_main )
compiler.add_code exit_label compiler.add_code exit_label
emit_syscall( compiler , :exit ) emit_syscall( compiler , :exit )
@ -38,7 +38,7 @@ module Register
compiler.add_code Syscall.new("emit_syscall(#{name})", name ) compiler.add_code Syscall.new("emit_syscall(#{name})", name )
restore_message(compiler) restore_message(compiler)
return unless (@clazz and @method) return unless (@clazz and @method)
compiler.add_code Register.label( "#{@clazz.name}.#{@message.name}" , "return_syscall" ) compiler.add_label( "#{@clazz.name}.#{@message.name}" , "return_syscall" )
end end
# save the current message, as the syscall destroys all context # save the current message, as the syscall destroys all context
@ -47,7 +47,7 @@ module Register
# #
def save_message(compiler) def save_message(compiler)
r8 = RegisterValue.new( :r8 , :Message) r8 = RegisterValue.new( :r8 , :Message)
compiler.add_code Register.transfer("save_message", Register.message_reg , r8 ) compiler.add_transfer("save_message", Register.message_reg , r8 )
end end
def restore_message(compiler) def restore_message(compiler)
@ -55,11 +55,11 @@ module Register
return_tmp = Register.tmp_reg :Integer return_tmp = Register.tmp_reg :Integer
source = "_restore_message" source = "_restore_message"
# get the sys return out of the way # get the sys return out of the way
compiler.add_code Register.transfer(source, Register.message_reg , return_tmp ) compiler.add_transfer(source, Register.message_reg , return_tmp )
# load the stored message into the base RegisterMachine # load the stored message into the base RegisterMachine
compiler.add_code Register.transfer(source, r8 , Register.message_reg ) compiler.add_transfer(source, r8 , Register.message_reg )
# save the return value into the message # save the return value into the message
compiler.add_code Register.reg_to_slot( source , return_tmp , :message , :return_value ) compiler.add_reg_to_slot( source , return_tmp , :message , :return_value )
end end
end end
extend ClassMethods extend ClassMethods

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@ -14,9 +14,9 @@ module Register
source = "get_internal_word" source = "get_internal_word"
me , index = self_and_int_arg(compiler,source) me , index = self_and_int_arg(compiler,source)
# reduce me to me[index] # reduce me to me[index]
compiler.add_code Register.slot_to_reg( source , me , index , me) compiler.add_slot_to_reg( source , me , index , me)
# and put it back into the return value # and put it back into the return value
compiler.add_code Register.reg_to_slot( source , me , :message , :return_value) compiler.add_reg_to_slot( source , me , :message , :return_value)
return compiler.method return compiler.method
end end
@ -29,7 +29,7 @@ module Register
value = load_int_arg_at(compiler,source , 2) value = load_int_arg_at(compiler,source , 2)
# do the set # do the set
compiler.add_code Register.reg_to_slot( source , value , me , index) compiler.add_reg_to_slot( source , value , me , index)
return compiler.method return compiler.method
end end

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@ -8,10 +8,10 @@ module Register
def putstring context def putstring context
compiler = Typed::MethodCompiler.new.create_method(:Word , :putstring ).init_method compiler = Typed::MethodCompiler.new.create_method(:Word , :putstring ).init_method
compiler.add_code Register.slot_to_reg( "putstring" , :message , :receiver , :new_message ) compiler.add_slot_to_reg( "putstring" , :message , :receiver , :new_message )
index = Parfait::Word.get_length_index index = Parfait::Word.get_length_index
reg = RegisterValue.new(:r2 , :Integer) reg = RegisterValue.new(:r2 , :Integer)
compiler.add_code Register.slot_to_reg( "putstring" , :new_message , index , reg ) compiler.add_slot_to_reg( "putstring" , :new_message , index , reg )
Kernel.emit_syscall( compiler , :putstring ) Kernel.emit_syscall( compiler , :putstring )
compiler.method compiler.method
end end
@ -23,9 +23,9 @@ module Register
source = "get_internal_byte" source = "get_internal_byte"
me , index = self_and_int_arg(compiler,source) me , index = self_and_int_arg(compiler,source)
# reduce me to me[index] # reduce me to me[index]
compiler.add_code Register.byte_to_reg( source , me , index , me) compiler.add_byte_to_reg( source , me , index , me)
# and put it back into the return value # and put it back into the return value
compiler.add_code Register.reg_to_slot( source , me , :message , :return_value) compiler.add_reg_to_slot( source , me , :message , :return_value)
return compiler.method return compiler.method
end end
@ -41,7 +41,7 @@ module Register
me , index = self_and_int_arg(compiler,source) me , index = self_and_int_arg(compiler,source)
value = load_int_arg_at(compiler , source , 2 ) value = load_int_arg_at(compiler , source , 2 )
# do the set # do the set
compiler.add_code Register.reg_to_byte( source , value , me , index) compiler.add_reg_to_byte( source , value , me , index)
return compiler.method return compiler.method
end end

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@ -22,12 +22,12 @@ module Register
def self.issue_call( compiler , callee ) def self.issue_call( compiler , callee )
return_label = Register.label("_return_label #{callee.name}" , "#{compiler.type.object_class.name}.#{compiler.method.name}" ) return_label = Register.label("_return_label #{callee.name}" , "#{compiler.type.object_class.name}.#{compiler.method.name}" )
ret_tmp = compiler.use_reg(:Label) ret_tmp = compiler.use_reg(:Label)
compiler.add_code Register.load_constant("#{callee.name} load ret", return_label , ret_tmp) compiler.add_load_constant("#{callee.name} load ret", return_label , ret_tmp)
compiler.add_code Register.reg_to_slot("#{callee.name} store ret", ret_tmp , :new_message , :return_address) compiler.add_reg_to_slot("#{callee.name} store ret", ret_tmp , :new_message , :return_address)
compiler.add_code Register.transfer("#{callee.name} move new message", Register.new_message_reg , Register.message_reg ) compiler.add_transfer("#{callee.name} move new message", Register.new_message_reg , Register.message_reg )
compiler.add_code Register.function_call( "#{callee.name} call" , callee ) compiler.add_code Register.function_call( "#{callee.name} call" , callee )
compiler.add_code return_label compiler.add_code return_label
compiler.add_code Register.transfer("#{callee.name} remove new message", Register.message_reg , Register.new_message_reg ) compiler.add_transfer("#{callee.name} remove new message", Register.message_reg , Register.new_message_reg )
compiler.add_code Register.slot_to_reg("#{callee.name} restore message" , :new_message , :caller , :message ) compiler.add_slot_to_reg("#{callee.name} restore message" , :new_message , :caller , :message )
end end
end end

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@ -135,9 +135,9 @@ module Typed
name = "#{method.for_type.name}.#{method.name}" name = "#{method.for_type.name}.#{method.name}"
@method.instructions = Register.label(source, name) @method.instructions = Register.label(source, name)
@current = enter = method.instructions @current = enter = method.instructions
add_code Register.label( source, "return #{name}") add_label( source, "return #{name}")
#load the return address into pc, affecting return. (other cpus have commands for this, but not arm) #load the return address into pc, affecting return. (other cpus have commands for this, but not arm)
add_code Register.function_return( source , Register.message_reg , Register.resolve_to_index(:message , :return_address) ) add_function_return( source , Register.message_reg , Register.resolve_to_index(:message , :return_address) )
@current = enter @current = enter
self self
end end
@ -157,6 +157,13 @@ module Typed
self self
end end
[:label, :reg_to_slot , :slot_to_reg , :load_constant, :function_return ,
:transfer , :reg_to_slot , :byte_to_reg , :reg_to_byte].each do |method|
define_method("add_#{method}".to_sym) do |*args|
add_code Register.send( method , *args )
end
end
# require a (temporary) register. code must give this back with release_reg # require a (temporary) register. code must give this back with release_reg
def use_reg( type , value = nil ) def use_reg( type , value = nil )
raise "Not type #{type.inspect}" unless type.is_a?(Symbol) or type.is_a?(Parfait::Type) raise "Not type #{type.inspect}" unless type.is_a?(Symbol) or type.is_a?(Parfait::Type)

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@ -17,8 +17,8 @@ module Typed
value_type = @method.locals_type( index ) value_type = @method.locals_type( index )
end end
raise "Type mismatch for #{type} access #{value.type}!=#{value_type}" unless value.type == value_type raise "Type mismatch for #{type} access #{value.type}!=#{value_type}" unless value.type == value_type
add_code Register.slot_to_reg(statement , :message , type , named_list ) add_slot_to_reg(statement , :message , type , named_list )
add_code Register.reg_to_slot(statement , value , named_list , index + 1 ) # one for type add_reg_to_slot(statement , value , named_list , index + 1 ) # one for type
end end
# ensure the name given is not space and raise exception otherwise # ensure the name given is not space and raise exception otherwise

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@ -13,25 +13,25 @@ module Typed
def on_IntegerExpression expression def on_IntegerExpression expression
int = expression.value int = expression.value
reg = use_reg :Integer , int reg = use_reg :Integer , int
add_code Register.load_constant( expression, int , reg ) add_load_constant( expression, int , reg )
return reg return reg
end end
def on_TrueExpression expression def on_TrueExpression expression
reg = use_reg :Boolean reg = use_reg :Boolean
add_code Register.load_constant( expression, true , reg ) add_load_constant( expression, true , reg )
return reg return reg
end end
def on_FalseExpression expression def on_FalseExpression expression
reg = use_reg :Boolean reg = use_reg :Boolean
add_code Register.load_constant( expression, false , reg ) add_load_constant( expression, false , reg )
return reg return reg
end end
def on_NilExpression expression def on_NilExpression expression
reg = use_reg :NilClass reg = use_reg :NilClass
add_code Register.load_constant( expression, nil , reg ) add_load_constant( expression, nil , reg )
return reg return reg
end end
@ -39,7 +39,7 @@ module Typed
value = Parfait.new_word expression.value.to_sym value = Parfait.new_word expression.value.to_sym
reg = use_reg :Word reg = use_reg :Word
Register.machine.constants << value Register.machine.constants << value
add_code Register.load_constant( expression, value , reg ) add_load_constant( expression, value , reg )
return reg return reg
end end
@ -48,7 +48,7 @@ module Typed
clazz = Parfait::Space.object_space.get_class_by_name! name clazz = Parfait::Space.object_space.get_class_by_name! name
raise "No such class #{name}" unless clazz raise "No such class #{name}" unless clazz
reg = use_reg :MetaClass , clazz reg = use_reg :MetaClass , clazz
add_code Register.load_constant( expression, clazz , reg ) add_load_constant( expression, clazz , reg )
return reg return reg
end end

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@ -7,7 +7,7 @@ module Typed
reset_regs reset_regs
#move the new message (that we need to populate to make a call) to std register #move the new message (that we need to populate to make a call) to std register
new_message = Register.resolve_to_register(:new_message) new_message = Register.resolve_to_register(:new_message)
add_code Register.slot_to_reg(statement, :message , :next_message , new_message ) add_slot_to_reg(statement, :message , :next_message , new_message )
me = get_me( statement ) me = get_me( statement )
type = get_my_type(me) type = get_my_type(me)
@ -15,7 +15,7 @@ module Typed
raise "Method not implemented #{type.inspect}.#{statement.name}" unless method raise "Method not implemented #{type.inspect}.#{statement.name}" unless method
# move our receiver there # move our receiver there
add_code Register.reg_to_slot( statement , me , :new_message , :receiver) add_reg_to_slot( statement , me , :new_message , :receiver)
set_message_details(method , statement , statement.arguments) set_message_details(method , statement , statement.arguments)
set_arguments(method , statement.arguments) set_arguments(method , statement.arguments)
@ -25,7 +25,7 @@ module Typed
# the effect of the method is that the NewMessage Return slot will be filled, return it # the effect of the method is that the NewMessage Return slot will be filled, return it
# but move it into a register too # but move it into a register too
add_code Register.slot_to_reg(statement, :new_message , :return_value , ret ) add_slot_to_reg(statement, :new_message , :return_value , ret )
ret ret
end end
@ -36,7 +36,7 @@ module Typed
me = process( statement.receiver ) me = process( statement.receiver )
else else
me = use_reg @method.for_type me = use_reg @method.for_type
add_code Register.slot_to_reg(statement, :message , :receiver , me ) add_slot_to_reg(statement, :message , :receiver , me )
end end
me me
end end
@ -58,22 +58,22 @@ module Typed
def set_message_details( method , name_s , arguments ) def set_message_details( method , name_s , arguments )
name = name_s.name name = name_s.name
name_tmp = use_reg(:Word) name_tmp = use_reg(:Word)
add_code Register.load_constant("#{name} load method name", name , name_tmp) add_load_constant("#{name} load method name", name , name_tmp)
add_code Register.reg_to_slot( "#{name} store method name" , name_tmp , :new_message , :name) add_reg_to_slot( "#{name} store method name" , name_tmp , :new_message , :name)
# next arg and local types # next arg and local types
args_reg = use_reg(:Type , method.arguments ) args_reg = use_reg(:Type , method.arguments )
list_reg = use_reg(:NamedList , arguments ) list_reg = use_reg(:NamedList , arguments )
add_code Register.load_constant("#{name} load methods", method , args_reg) add_load_constant("#{name} load methods", method , args_reg)
args_type_index = method.get_type().variable_index(:arguments) args_type_index = method.get_type().variable_index(:arguments)
raise args_type_index.to_s unless args_type_index == 6 raise args_type_index.to_s unless args_type_index == 6
add_code Register.slot_to_reg( "#{name} get args type from method" , args_reg , args_type_index , args_reg ) add_slot_to_reg( "#{name} get args type from method" , args_reg , args_type_index , args_reg )
add_code Register.slot_to_reg( "#{name} get args from method" , :new_message , :arguments , list_reg ) add_slot_to_reg( "#{name} get args from method" , :new_message , :arguments , list_reg )
add_code Register.reg_to_slot( "#{name} store args type in args" , args_reg , list_reg , 1 ) add_reg_to_slot( "#{name} store args type in args" , args_reg , list_reg , 1 )
#FIXME need to set type of locals too. sama sama #FIXME need to set type of locals too. sama sama
# len_tmp = use_reg(:Integer , arguments.to_a.length ) # len_tmp = use_reg(:Integer , arguments.to_a.length )
# add_code Register.load_constant(name_s, arguments.to_a.length , len_tmp) # add_load_constant(name_s, arguments.to_a.length , len_tmp)
# add_code Register.reg_to_slot( name_s , len_tmp , :new_message , :indexed_length) # add_reg_to_slot( name_s , len_tmp , :new_message , :indexed_length)
end end
def set_arguments( method , arguments ) def set_arguments( method , arguments )
@ -89,10 +89,9 @@ module Typed
#FIXME definately needs some tests #FIXME definately needs some tests
raise "TypeMismatch calling with #{val.type} , instead of #{arg_type.type_at(i + 2)}" if val.type != arg_type.type_at(i + 2) raise "TypeMismatch calling with #{val.type} , instead of #{arg_type.type_at(i + 2)}" if val.type != arg_type.type_at(i + 2)
list_reg = use_reg(:NamedList , arguments ) list_reg = use_reg(:NamedList , arguments )
add_code Register.slot_to_reg( "Set arg #{i}:#{arg}" , :new_message , :arguments , list_reg ) add_slot_to_reg( "Set arg #{i}:#{arg}" , :new_message , :arguments , list_reg )
# which we load int the new_message at the argument's index # which we load int the new_message at the argument's index
set = Register.reg_to_slot( arg , val , list_reg , i + 2 ) #one for type and one for ruby add_reg_to_slot( arg , val , list_reg , i + 2 ) #one for type and one for ruby
add_code set
end end
end end
end end

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@ -15,7 +15,7 @@ module Typed
raise "no such field:#{field_name} for class #{type.inspect}" unless index raise "no such field:#{field_name} for class #{type.inspect}" unless index
value = use_reg(type.type_at(index)) value = use_reg(type.type_at(index))
add_code Register.slot_to_reg(statement , receiver , index, value) add_slot_to_reg(statement , receiver , index, value)
value value
end end

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@ -15,8 +15,8 @@ module Typed
named_list = use_reg :NamedList named_list = use_reg :NamedList
ret = use_reg @method.argument_type(index) ret = use_reg @method.argument_type(index)
#puts "For #{name} at #{index} got #{@method.arguments.inspect}" #puts "For #{name} at #{index} got #{@method.arguments.inspect}"
add_code Register.slot_to_reg("#{statement} load args" , :message , :arguments, named_list ) add_slot_to_reg("#{statement} load args" , :message , :arguments, named_list )
add_code Register.slot_to_reg("#{statement} load #{name}" , named_list , index + 1, ret ) add_slot_to_reg("#{statement} load #{name}" , named_list , index + 1, ret )
return ret return ret
end end
# or a local so it is in the named_list # or a local so it is in the named_list
@ -30,28 +30,28 @@ module Typed
index = @method.has_local( name ) index = @method.has_local( name )
raise "must define variable '#{name}' before using it" unless index raise "must define variable '#{name}' before using it" unless index
named_list = use_reg :NamedList named_list = use_reg :NamedList
add_code Register.slot_to_reg("#{name} load locals" , :message , :locals , named_list ) add_slot_to_reg("#{name} load locals" , :message , :locals , named_list )
ret = use_reg @method.locals_type( index ) ret = use_reg @method.locals_type( index )
add_code Register.slot_to_reg("#{name} load from locals" , named_list , index + 1, ret ) add_slot_to_reg("#{name} load from locals" , named_list , index + 1, ret )
return ret return ret
end end
def handle_special_self(statement) def handle_special_self(statement)
ret = use_reg @type ret = use_reg @type
add_code Register.slot_to_reg("#{statement} load self" , :message , :receiver , ret ) add_slot_to_reg("#{statement} load self" , :message , :receiver , ret )
return ret return ret
end end
def handle_special_space(statement) def handle_special_space(statement)
space = Parfait::Space.object_space space = Parfait::Space.object_space
reg = use_reg :Space , space reg = use_reg :Space , space
add_code Register.load_constant( "#{statement} load space", space , reg ) add_load_constant( "#{statement} load space", space , reg )
return reg return reg
end end
def handle_special_message(statement) def handle_special_message(statement)
reg = use_reg :Message reg = use_reg :Message
add_code Register.transfer( "#{statement} load message", Register.message_reg , reg ) add_transfer( "#{statement} load message", Register.message_reg , reg )
return reg return reg
end end
end #module end #module

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@ -3,7 +3,7 @@ module Typed
def on_ReturnStatement statement def on_ReturnStatement statement
reg = process(statement.return_value) reg = process(statement.return_value)
add_code Register.reg_to_slot( statement, reg , :message , :return_value) add_reg_to_slot( statement, reg , :message , :return_value)
nil # statements don't return nil # statements don't return
end end
end end