2340 	u8 code, class, op;  in is_reg64()  local
2343 	class = BPF_CLASS(code);  in is_reg64()
2345 	if (class == BPF_JMP) {  in is_reg64()
2369 	if (class == BPF_ALU64 || class == BPF_JMP ||  in is_reg64()
2371 	    (class == BPF_ALU && op == BPF_END && insn->imm == 64))  in is_reg64()
2374 	if (class == BPF_ALU || class == BPF_JMP32)  in is_reg64()
2377 	if (class == BPF_LDX) {  in is_reg64()
2384 	if (class == BPF_STX) {  in is_reg64()
2394 	if (class == BPF_LD) {  in is_reg64()
2413 	if (class == BPF_ST)  in is_reg64()
2598 	u8 class = BPF_CLASS(insn->code);  in backtrack_insn()  local
2613 	if (class == BPF_ALU || class == BPF_ALU64) {  in backtrack_insn()
2649 	} else if (class == BPF_LDX) {  in backtrack_insn()
2674 	} else if (class == BPF_STX || class == BPF_ST) {  in backtrack_insn()
2693 		if (class == BPF_STX)  in backtrack_insn()
2695 	} else if (class == BPF_JMP || class == BPF_JMP32) {  in backtrack_insn()
2738 	} else if (class == BPF_LD) {  in backtrack_insn()
4002 	int class = BPF_CLASS(insn->code);  in check_map_kptr_access()  local
4020 	if (class != BPF_LDX && off_desc->type == BPF_KPTR_REF) {  in check_map_kptr_access()
4025 	if (class == BPF_LDX) {  in check_map_kptr_access()
4034 	} else if (class == BPF_STX) {  in check_map_kptr_access()
4039 	} else if (class == BPF_ST) {  in check_map_kptr_access()
12467 		u8 class;  in do_check()  local
12478 		class = BPF_CLASS(insn->code);  in do_check()
12548 		if (class == BPF_ALU || class == BPF_ALU64) {  in do_check()
12553 		} else if (class == BPF_LDX) {  in do_check()
12599 		} else if (class == BPF_STX) {  in do_check()
12642 		} else if (class == BPF_ST) {  in do_check()
12667 		} else if (class == BPF_JMP || class == BPF_JMP32) {  in do_check()
12679 				    class == BPF_JMP32) {  in do_check()
12703 				    class == BPF_JMP32) {  in do_check()
12716 				    class == BPF_JMP32) {  in do_check()
12766 		} else if (class == BPF_LD) {  in do_check()
12786 			verbose(env, "unknown insn class %d\n", class);  in do_check()
13638 			u8 code, class;  in opt_subreg_zext_lo32_rnd_hi32()  local
13645 			class = BPF_CLASS(code);  in opt_subreg_zext_lo32_rnd_hi32()
13654 				if (class == BPF_LD &&  in opt_subreg_zext_lo32_rnd_hi32()
13661 			if (class == BPF_LDX &&  in opt_subreg_zext_lo32_rnd_hi32()