https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97203
--- Comment #4 from Tom de Vries <vries at gcc dot gnu.org> --- So, I think calling functions from simd code is atm not supported for nvptx. Stack variables in simd code are mapped on a per-thread stack rather than on the usual per-warp stack. The functions are compiled with the usual per-warp stack, so calling those functions from simd might mean the different lanes are gonna disagree about what the value in a stack variable should be. Having said that, for the example in comment 2, there only should be one thread executing the call, so this doesn't explain the illegal memory access.
