606 	int off, b_off;  in emit_bpf_tail_call()  local
617 	b_off = b_imm(this_idx + 1, ctx);  in emit_bpf_tail_call()
618 	emit_instr(ctx, bne, MIPS_R_AT, MIPS_R_ZERO, b_off);  in emit_bpf_tail_call()
626 	b_off = b_imm(this_idx + 1, ctx);  in emit_bpf_tail_call()
627 	emit_instr(ctx, bltz, tcc_reg, b_off);  in emit_bpf_tail_call()
638 	b_off = b_imm(this_idx + 1, ctx);  in emit_bpf_tail_call()
639 	emit_instr(ctx, beq, MIPS_R_AT, MIPS_R_ZERO, b_off);  in emit_bpf_tail_call()
653 static bool is_bad_offset(int b_off)  in is_bad_offset()  argument
655 	return b_off > 0x1ffff || b_off < -0x20000;  in is_bad_offset()
662 	int src, dst, r, td, ts, mem_off, b_off;  in build_one_insn()  local
994 			b_off = b_imm(exit_idx, ctx);  in build_one_insn()
995 			if (is_bad_offset(b_off))  in build_one_insn()
997 			emit_instr(ctx, beq, MIPS_R_ZERO, MIPS_R_ZERO, b_off);  in build_one_insn()
1046 				b_off = b_imm(exit_idx, ctx);  in build_one_insn()
1047 				if (is_bad_offset(b_off))  in build_one_insn()
1050 					emit_instr(ctx, blez, MIPS_R_AT, b_off);  in build_one_insn()
1052 					emit_instr(ctx, bgtz, MIPS_R_AT, b_off);  in build_one_insn()
1056 			b_off = b_imm(this_idx + insn->off + 1, ctx);  in build_one_insn()
1057 			if (is_bad_offset(b_off))  in build_one_insn()
1060 				emit_instr(ctx, bgtz, MIPS_R_AT, b_off);  in build_one_insn()
1062 				emit_instr(ctx, blez, MIPS_R_AT, b_off);  in build_one_insn()
1104 			b_off = b_imm(exit_idx, ctx);  in build_one_insn()
1105 			if (is_bad_offset(b_off)) {  in build_one_insn()
1110 				b_off = 4 * 3;  in build_one_insn()
1118 				emit_instr(ctx, bne, dst, src, b_off);  in build_one_insn()
1120 				emit_instr(ctx, beq, dst, src, b_off);  in build_one_insn()
1128 		b_off = b_imm(this_idx + insn->off + 1, ctx);  in build_one_insn()
1129 		if (is_bad_offset(b_off)) {  in build_one_insn()
1134 			b_off = 4 * 3;  in build_one_insn()
1142 			emit_instr(ctx, beq, dst, src, b_off);  in build_one_insn()
1144 			emit_instr(ctx, bne, dst, src, b_off);  in build_one_insn()
1162 				b_off = b_imm(exit_idx, ctx);  in build_one_insn()
1163 				if (is_bad_offset(b_off))  in build_one_insn()
1167 					emit_instr(ctx, blez, dst, b_off);  in build_one_insn()
1170 					emit_instr(ctx, bltz, dst, b_off);  in build_one_insn()
1173 					emit_instr(ctx, bgez, dst, b_off);  in build_one_insn()
1176 					emit_instr(ctx, bgtz, dst, b_off);  in build_one_insn()
1182 			b_off = b_imm(this_idx + insn->off + 1, ctx);  in build_one_insn()
1183 			if (is_bad_offset(b_off))  in build_one_insn()
1187 				emit_instr(ctx, bgtz, dst, b_off);  in build_one_insn()
1190 				emit_instr(ctx, bgez, dst, b_off);  in build_one_insn()
1193 				emit_instr(ctx, bltz, dst, b_off);  in build_one_insn()
1196 				emit_instr(ctx, blez, dst, b_off);  in build_one_insn()
1260 				b_off = b_imm(exit_idx, ctx);  in build_one_insn()
1261 				if (is_bad_offset(b_off))  in build_one_insn()
1263 				emit_instr(ctx, bbit0, dst, ffs((u32)insn->imm) - 1, b_off);  in build_one_insn()
1267 			b_off = b_imm(this_idx + insn->off + 1, ctx);  in build_one_insn()
1268 			if (is_bad_offset(b_off))  in build_one_insn()
1270 			emit_instr(ctx, bbit1, dst, ffs((u32)insn->imm) - 1, b_off);  in build_one_insn()
1287 		b_off = b_imm(this_idx + insn->off + 1, ctx);  in build_one_insn()
1288 		if (is_bad_offset(b_off)) {  in build_one_insn()
1294 			emit_instr(ctx, b, b_off);  in build_one_insn()