[Gambas-user] Pre-release of Gambas 3.7 (2)

[Gian]

Il 11/03/2015 00:17, Benoît Minisini ha scritto:
> Le 11/03/2015 00:03, Jussi Lahtinen a écrit :
>>> Exactly. Only Emil can confirm, as I don't have enough knowledge about
>>> that, but apparently there is no way to make an equivalent Gambas JIT
>>> compiler with the new versions of LLVM!
>>>
>>> I have modified the configuration script of gb.jit so that it checks
>>> that the llvm version is greater than 3.1, but strictly lower than 3.6.
>>>
>>
>> I just realized that the blog post is quite old and LLVM 3.6 is just
>> released. So, I hope the situation has improved since that!
>> But maybe it would be gb.JIT2 that uses LLVM 3.6.
>>
>>
>> Jussi
>
> Support of llvm >= 3.6 depends on Emil. At the moment, on Ubuntu, you
> can install llvm 3.4, 3.5 and 3.6 at the same time so this is not a problem.
>

Just for your information:
I got for the first time a Jit working on Ubuntu 14.04.02 LTS by 
installing the Trunk libraries as indicated in the documentation. About 
these libraries have installed llvm, llvm-dev e llvm-3.4-dev.
With and without Fast: same computation about 3 seconds versus about 47 
seconds, earlier with llvm-3.5-dev and same computation I had obtained 
segmentation fault error.

This is the Ru-vuott test:

   Fast

   Public Sub Button1_Click()

     Dim I As Integer
     Dim start, finish As Float

     start = Timer

     For I = 1 To 10
       Print Test(0.2)
     Next
     finish = Timer
     Print finish - start

   End


   Sub Test(X As Float) As Float

      Dim Mu As Float = 10.0
      Dim Pu, Su As Float
      Dim I, J, N As Integer
      Dim aPoly As New Float[100]

      N = 500000

      For I = 0 To N - 1
        For J = 0 To 99
          Mu = (Mu + 2.0) / 2.0
          aPoly[J] = Mu
        Next
        Su = 0.0
        For J = 0 To 99
          Su = X * Su + aPoly[J]
        Next
        Pu += Su
      Next

      Return Pu

   End