archive/ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2025-08-25 14:05:02 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

Implement a no-op JIT compiler

Browse source
This commit is contained in:
Takashi Kokubun 2022-12-11 21:42:25 -08:00
parent baa120ee80
commit fd04e1b4db
6 changed files with 97 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

24
lib/ruby_vm/mjit/compiler.rb
View file

@ -1,6 +1,14 @@
require 'mjit/x86_64/assembler'
class RubyVM::MJIT::Compiler
C = RubyVM::MJIT.const_get(:C, false)
INSNS = RubyVM::MJIT.const_get(:INSNS, false)
# MJIT internals
Assembler = RubyVM::MJIT::Assembler
C = RubyVM::MJIT::C
# Ruby constants
Qundef = Fiddle::Qundef
attr_accessor :write_pos
# @param mem_block [Integer] JIT buffer address
def initialize(mem_block)
@ -10,6 +18,16 @@ class RubyVM::MJIT::Compiler
# @param iseq [RubyVM::MJIT::CPointer::Struct]
def compile(iseq)
# TODO: implement
return if iseq.body.location.label == '<main>'
iseq.body.jit_func = write_addr
asm = Assembler.new
asm.mov(:eax, Qundef)
asm.ret
asm.compile(self)
end
def write_addr
@mem_block + @write_pos
end
end