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624cd2a176
Convert exceptions_assert.c to bpf_cmp_unlikely() macro. Since bpf_assert(bpf_cmp_unlikely(var, ==, 100)); other code; will generate assembly code: if r1 == 100 goto L2; r0 = 0 call bpf_throw L1: other code; ... L2: goto L1; LLVM generates redundant basic block with extra goto. LLVM will be fixed eventually. Right now it's less efficient than __bpf_assert(var, ==, 100) macro that produces: if r1 == 100 goto L1; r0 = 0 call bpf_throw L1: other code; But extra goto doesn't hurt the verification process. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/bpf/20231226191148.48536-4-alexei.starovoitov@gmail.com |
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