{
        "BPF_ATOMIC XOR without fetch",
        .insns = {
                /* val = 0x110; */
                BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
                /* atomic_xor(&val, 0x011); */
                BPF_MOV64_IMM(BPF_REG_1, 0x011),
                BPF_ATOMIC_OP(BPF_DW, BPF_XOR, BPF_REG_10, BPF_REG_1, -8),
                /* if (val != 0x101) exit(2); */
                BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
                BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0x101, 2),
                BPF_MOV64_IMM(BPF_REG_0, 2),
                BPF_EXIT_INSN(),
                /* r1 should not be clobbered, no BPF_FETCH flag */
                BPF_MOV64_IMM(BPF_REG_0, 0),
                BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x011, 1),
                BPF_MOV64_IMM(BPF_REG_0, 1),
                BPF_EXIT_INSN(),
        },
        .result = ACCEPT,
},
{
        "BPF_ATOMIC XOR with fetch",
        .insns = {
                BPF_MOV64_IMM(BPF_REG_0, 123),
                /* val = 0x110; */
                BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
                /* old = atomic_fetch_xor(&val, 0x011); */
                BPF_MOV64_IMM(BPF_REG_1, 0x011),
                BPF_ATOMIC_OP(BPF_DW, BPF_XOR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
                /* if (old != 0x110) exit(3); */
                BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
                BPF_MOV64_IMM(BPF_REG_0, 3),
                BPF_EXIT_INSN(),
                /* if (val != 0x101) exit(2); */
                BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),
                BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x101, 2),
                BPF_MOV64_IMM(BPF_REG_1, 2),
                BPF_EXIT_INSN(),
                /* Check R0 wasn't clobbered (fxor fear of x86 JIT bug) */
                BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 123, 2),
                BPF_MOV64_IMM(BPF_REG_0, 1),
                BPF_EXIT_INSN(),
                /* exit(0); */
                BPF_MOV64_IMM(BPF_REG_0, 0),
                BPF_EXIT_INSN(),
        },
        .result = ACCEPT,
},
{
        "BPF_ATOMIC XOR with fetch 32bit",
        .insns = {
                /* r0 = (s64) -1 */
                BPF_MOV64_IMM(BPF_REG_0, 0),
                BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 1),
                /* val = 0x110; */
                BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 0x110),
                /* old = atomic_fetch_xor(&val, 0x011); */
                BPF_MOV32_IMM(BPF_REG_1, 0x011),
                BPF_ATOMIC_OP(BPF_W, BPF_XOR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -4),
                /* if (old != 0x110) exit(3); */
                BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
                BPF_MOV32_IMM(BPF_REG_0, 3),
                BPF_EXIT_INSN(),
                /* if (val != 0x101) exit(2); */
                BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_10, -4),
                BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x101, 2),
                BPF_MOV32_IMM(BPF_REG_1, 2),
                BPF_EXIT_INSN(),
                /* Check R0 wasn't clobbered (fxor fear of x86 JIT bug)
                 * It should be -1 so add 1 to get exit code.
                 */
                BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
                BPF_EXIT_INSN(),
        },
        .result = ACCEPT,
},