search for: tp56026p56080

...the shared memory by specifying size in kernel Launch? If so, why doesn't the second use of the same statement in another function cause the error ? I am using 3.2. -- View this message in context: http://llvm.1065342.n5.nabble.com/UNREACHABLE-executed-error-while-trying-to-generate-PTX-tp56026p56080.html Sent from the LLVM - Dev mailing list archive at Nabble.com.

The problem you are seeing is because clang is putting the global variables in address space 0, which in NVPTX means the generic address space. PTX does not allow this, so the back-end *should* be printing an error for you. Are you using trunk or 3.2? Generally, clang won't be compatible with the CUDA Toolkit headers. If you want to use the __constant__ modifier from CUDA in Clang, define

...y a shared size when you launch the kernel. You can get the address space mapping from lib/Target/NVPTX/MCTargetDesc/NVPTXBaseInfo.h. > > > > > > -- > View this message in context: > http://llvm.1065342.n5.nabble.com/UNREACHABLE-executed-error-while-trying-to-generate-PTX-tp56026p56080.html > Sent from the LLVM - Dev mailing list archive at Nabble.com. > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev > -- Thanks, Just...

Please find the .ll attached below . Yes, I am using the cuda_runtime.h from the toolkit. nbody.kernel.ll <http://llvm.1065342.n5.nabble.com/file/n56048/nbody.kernel.ll> - Uday -- View this message in context: http://llvm.1065342.n5.nabble.com/UNREACHABLE-executed-error-while-trying-to-generate-PTX-tp56026p56048.html Sent from the LLVM - Dev mailing list archive at Nabble.com.