diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/testing/selftests/bpf/verifier/jump.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/jump.c b/tools/testing/selftests/bpf/verifier/jump.c index 6f951d1ff0a4..497fe17d2eaf 100644 --- a/tools/testing/selftests/bpf/verifier/jump.c +++ b/tools/testing/selftests/bpf/verifier/jump.c @@ -373,3 +373,25 @@ .result = ACCEPT, .retval = 3, }, +{ + "jump & dead code elimination", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_MOV64_IMM(BPF_REG_3, 0), + BPF_ALU64_IMM(BPF_NEG, BPF_REG_3, 0), + BPF_ALU64_IMM(BPF_NEG, BPF_REG_3, 0), + BPF_ALU64_IMM(BPF_OR, BPF_REG_3, 32767), + BPF_JMP_IMM(BPF_JSGE, BPF_REG_3, 0, 1), + BPF_EXIT_INSN(), + BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 0x8000, 1), + BPF_EXIT_INSN(), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -32767), + BPF_MOV64_IMM(BPF_REG_0, 2), + BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 0, 1), + BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, + .result = ACCEPT, + .retval = 2, +}, |