compilation lua fucntion during execution of lua program at run time.
local lvmjit = require "lvmjit.core"
local function func(...)
-- do something..
end
local cfunc = lvmjit.compile(func)
cfunc(...)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% |
| 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 |
instead LUAI_FUNC macro extern of __attribute__((visibility("internal"))) extern in luaconf.h.