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This new metadata format is currently optional. The old ptx_kernel calling convention should still work. The only thing you should have to change when converting from PTX -> NVPTX is the address space map. The calling conventions and intrinsics should be compatible with both. > -----Original Message----- > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu]

Hi everybody, I have noticed that the new NVPTX backend requires new metadata to identify the kernels in the module: define void @metadata_kernel(float* %a) { ret void } !nvvm.annotations = !{!1} !1 = metadata !{void (float*)* @metadata_kernel, metadata !"kernel", i32 1} Is clang going to support the emission of this metadata soon ? Or do I have to write it on my own ? :) Thanks,