imm19              26 arch/arm64/net/bpf_jit.h #define A64_CBZ(sf, Rt, imm19) A64_COMP_BRANCH(sf, Rt, (imm19) << 2, ZERO)
imm19              27 arch/arm64/net/bpf_jit.h #define A64_CBNZ(sf, Rt, imm19) A64_COMP_BRANCH(sf, Rt, (imm19) << 2, NONZERO)
imm19              42 arch/arm64/net/bpf_jit.h #define A64_B_(cond, imm19) A64_COND_BRANCH(cond, (imm19) << 2)