i'm glad to see that GPUs are becoming more accessible! given that they use OpenCL to run kernels, i'm really confused to see that they're compiling kernels to

i'm glad to see that GPUs are becoming more accessible! given that they use OpenCL to run kernels, i'm really confused to see that they're compiling kernels to PTX, and not just intermediary OpenCL C. that way they could run on any OpenCL supporting device. in the future, i would hope to at least see SPIR used in place of PTX.