Hello again,
I now compiled pocl with --enable-static-llvm.
Probably an ugly workaround, but this seems to solve my issue for now.
Regards
Gunnar
Am 18.11.2015 um 18:05 schrieb Gunnar Wüllrich:
> Hi,
>
> for my master thesis I attempt to implement a custom ICD loader that
> only exposes a pseudo device to the outside and then dispatches OpenCL
> calls itself to the real devices. Until now, the base system worked
> quite well so far, with pocl as a runtime.
>
> Now I attempt to use Clang/LLVM to do some analysis on the OpenCL code
> that I can finally use to decide where exactly to run the kernels.
> However, I can't get pocl and this analyser work together.
> If pocl did not yet create its cache, the applications segfaults on
> calls to clEnqueueNDRangeKernel with the additional message:
> Two passes with the same argument (<these vary>) attempted to be
> registered!
>
> In my first attempt I used the default global LLVM context and figured
> that this might somehow interfere with the pocl context.
> Therefore I created a new LLVMContext, but to no avail. This alone also
> seems to break something, as little as calling:
>
> void analyse(..) {
> llvm::LLVMContext* myContext = new llvm::LLVMContext();
> delete(myContext);
> }
> leads to the same error described above.
> In both cases though, the program does not crash, if the pocl cache was
> created beforehand.
>
> Do you have an idea how I can employ LLVM functionality without
> interfering with pocl's operation? I am not at all familiar with LLVMs
> inner workings, so I might be missing something obvious.
>
> Best regards
> Gunnar Wüllrich
>
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