1{
 2	"atomic exchange smoketest - 64bit",
 3	.insns = {
 4		/* val = 3; */
 5		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
 6		/* old = atomic_xchg(&val, 4); */
 7		BPF_MOV64_IMM(BPF_REG_1, 4),
 8		BPF_ATOMIC_OP(BPF_DW, BPF_XCHG, BPF_REG_10, BPF_REG_1, -8),
 9		/* if (old != 3) exit(1); */
10		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
11		BPF_MOV64_IMM(BPF_REG_0, 1),
12		BPF_EXIT_INSN(),
13		/* if (val != 4) exit(2); */
14		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
15		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
16		BPF_MOV64_IMM(BPF_REG_0, 2),
17		BPF_EXIT_INSN(),
18		/* exit(0); */
19		BPF_MOV64_IMM(BPF_REG_0, 0),
20		BPF_EXIT_INSN(),
21	},
22	.result = ACCEPT,
23},
24{
25	"atomic exchange smoketest - 32bit",
26	.insns = {
27		/* val = 3; */
28		BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 3),
29		/* old = atomic_xchg(&val, 4); */
30		BPF_MOV32_IMM(BPF_REG_1, 4),
31		BPF_ATOMIC_OP(BPF_W, BPF_XCHG, BPF_REG_10, BPF_REG_1, -4),
32		/* if (old != 3) exit(1); */
33		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
34		BPF_MOV32_IMM(BPF_REG_0, 1),
35		BPF_EXIT_INSN(),
36		/* if (val != 4) exit(2); */
37		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -4),
38		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
39		BPF_MOV32_IMM(BPF_REG_0, 2),
40		BPF_EXIT_INSN(),
41		/* exit(0); */
42		BPF_MOV32_IMM(BPF_REG_0, 0),
43		BPF_EXIT_INSN(),
44	},
45	.result = ACCEPT,
46},