llvm dev - Mar 2013 - [LLVMdev] Running cross compiled binaries for ARM on gem5

On 03/18/2013 10:28 AM, Renato Golin wrote:
> On 17 March 2013 22:40, SArora <silkyar at umich.edu 
> <mailto:silkyar at umich.edu>> wrote:
>
>     However, this errors out saying
>
>    
/home/silky/VecProject/opencv/OpenCVInstall/arm/include/opencv2/core/mat.hpp:117:9:
>     error: cannot compile this atomic library call yet
>             CV_XADD(refcount, 1);
>             ^~~~~~~~~~~~~~~~~~~~
>    
/home/silky/VecProject/opencv/OpenCVInstall/arm/include/opencv2/core/operations.hpp:61:38:
>     note: expanded from macro 'CV_XADD'
>             #define CV_XADD(addr, delta)
>     __c11_atomic_fetch_add((_Atomic(int)*)(addr), (delta),
>     __ATOMIC_SEQ_CST)
>
>
> This is odd. This atomic is implemented in CGAtomic.cpp, but it's 
> being lowered as a library call because "UseLibcall" is true:
>
> bool UseLibcall = (Size != Align ||
>                      getContext().toBits(sizeChars) > 
> MaxInlineWidthInBits);
>
> I don't think it should in your case. That looks like a bug, but
I'm
> not an atomic library expert. Can you create a bug in bugzilla 
> (http://www.llvm.org/bugs/), please?
>
> Possibly, you should send an email with this error and the bugzilla ID 
> to the list, just to make sure you get the attention of the right people.
>
> cheers,
> --renato
>
Hello,
This is the same issue reported here 
http://llvm.org/bugs/show_bug.cgi?id=15429
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On 18 March 2013 09:43, Abdoulaye Walsimou Gaye <awg at embtoolkit.org>
wrote:
> **
> This is the same issue reported here
> http://llvm.org/bugs/show_bug.cgi?id=15429
>
Yes, it does look like the same problem, thanks!

Silky, feel free to add your error messages to that bug to make sure it's
taken into account when fixed.

cheers,
--renato
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Thanks Renato!
I've attached the command I used and the error message as an attachment to
the bug.




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