Error when compiling with intel-llvm SYCL implementation.

[HariAbram]

I get the following error when I try to compile the miniBUDE mini app with Intel llvm SYCL v19.0.0git linked with POCL on ARM machine.

sycl_workspace/llvm/build/install//include/sycl/multi_ptr.hpp:1135:9: error: cannot initialize a member subobject of type 'conditional_t<is_decorated, __global void *, add_pointer_t<sycl::multi_ptr<void, Space, DecorateAddress>::value_type>>' with an rvalue of type 'conditional_t<is_decorated, const __global FFParams *, add_pointer_t<sycl::multi_ptr<const FFParams, sycl::access::address_space::global_space, sycl::access::decorated::yes>::value_type>>'
 1135 |       : m_Pointer(ETP.get()) {}

The error is related to this line of SYCL code.

clsycl::device_event event = item.async_work_group_copy<float>(
					clsycl::local_ptr<float>(clsycl::local_ptr<void>(local_forcefield.get_pointer())),
					clsycl::global_ptr<float>(clsycl::global_ptr<void>(forcefield.get_pointer())),
					ntypes * sizeof(FFParams) / sizeof(float));

[bader]

I'm not 100% sure, but I suppose forcefield is multi_ptr to const FFParams and the cast discards const qualifier. Can you try to keep const qualifier for the global_ptr?

[HariAbram]

So, I managed to solve this issue by using USM pointers. Your suggestion didn't work but thank you for the suggestion.