lvmjit

compilation lua fucntion during execution of lua program at run time.

tutorail

local lvmjit = require "lvmjit.core"

local function func(...)
    -- do something..
end

local cfunc = lvmjit.compile(func)
cfunc(...)

benchmark

test lua case in test.lua in my 3 GHz Intel Core i7 CPU

local function foo(a, b)
    local sum = a + b
    local d = 1
    for i=1,400000000 do
        sum = sum + d
    end
    return sum
end

type	cost	up
origin lua5.4	2.63411s	0%
lvmjit lua5.4	1.950952s	25.94%

support opcode

opcode	status
OP_MOVE	YES
OP_LOADI	YES
OP_RETURN0	YES
OP_RETURN1	YES
OP_RETURN	YES
OP_ADD	YES
OP_FORPREP	YES
OP_FORLOOP	YES
OP_LOADK	YES
OTHER OPCODE	NO

linux platform

instead LUAI_FUNC macro extern of __attribute__((visibility("internal"))) extern in luaconf.h.