I have tried it, it does not change anything.
-----Ursprüngliche Nachricht-----
Von: JonY [mailto:jo...@users.sourceforge.net]
Gesendet: Mittwoch, 16. März 2016 12:57
An: mingw-w64-public@lists.sourceforge.net
Betreff: Re: [Mingw-w64-public] Floating-Point Operations Not Deterministic
When Excecuted Asynchronously
On 3/15/2016 23:15, Benjamin Bihler wrote:
> I have taken commit d82c6defa723b6e7986091ce0fb74da544b9e0f6 ("Reset
> thread floating point settings on new thread") from the master branch
> of the mingw64 repository, compiled it and replaced the respective
> files in the "include" and "lib" folder of the "x86_64-mingw32"
> folder of my mingww64 5.3.0 installation with the newly compiled
> files.
>
> Then I have compiled my sample file with this modified mingw64
> installation. It had no effect, the two threads give different
> results. I have checked that the executable depends only on the DLLs
> Kernel32.dll and Msvcrt.dll.
>
> When I add
>
> _fpreset()
>
> as the first command of the method that is run asynchronously, both
> threads give the same result. But this has already been the case with
> the unmodified mingw64 compiler (without overwriting the link binaries
> with those from the new revision), I have checked that.
>
> My sample is a C++ sample, since I am using the gnu++11 features.
>
> It would be painful for me, if I had to add _fpreset() to all methods
> that I want to run asynchronously, especially since they may be part
> of other libraries.
>
> Did I patch my mingw64 installation in a wrong way? Otherwise it seems
> as if the commit mentioned above does not solve my problem.
>
> Does anyone have another idea? Thanks!
Hi,
Can you try with the latest code? I have just moved the _fpreset call,
hopefully it gets called correctly this time.
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