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At the moment, we only do extra sub-register mode compilation on bpf object files used by "test_progs". These object files are really loaded and executed. This patch further extends sub-register mode compilation to all bpf object files, even those without corresponding runtime tests. Because this could help testing LLVM sub-register code-gen, kernel bpf selftest has much more C testcases with reasonable size and complexity compared with LLVM testsuite which only contains unit tests. There were some file duplication inside BPF_OBJ_FILES_DUAL_COMPILE which is removed now. Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Jiong Wang <jiong.wang@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>