Generator: 报告Error: expected value token

[zhenglq23]

运行单个测例运行命令 ( export PATH=$HOME/sysu/bin:$PATH \ CPATH=$HOME/sysu/include:$CPATH \ LIBRARY_PATH=$HOME/sysu/lib:$LIBRARY_PATH \ LD_LIBRARY_PATH=$HOME/sysu/lib:$LD_LIBRARY_PATH && clang -E tester/functional/000_main.sysu.c | clang -cc1 -ast-dump=json | sysu-generator )
结果有：

; ModuleID = '-'
source_filename = "-"

@a = appending global [10 x [10 x i32]]

define i32 @main() {
entry:
  ret i32 0
}

但运行自动评测命令( export PATH=$HOME/sysu/bin:$PATH \ CPATH=$HOME/sysu/include:$CPATH \ LIBRARY_PATH=$HOME/sysu/lib:$LIBRARY_PATH \ LD_LIBRARY_PATH=$HOME/sysu/lib:$LD_LIBRARY_PATH && sysu-compiler --unittest=benchmark_generator_and_optimizer_1 "**/*.sysu.c" )
报错有：

[0/646] tester/function_test2020/00_arr_defn2.sysu.c
Error reading bitcode file: -
/root/sysu/bin/sysu-optimizer: <stdin>:6:1: error: expected value token
define i32 @main() {
^
{"tests": [{"name": "tester/function_test2020/00_arr_defn2.sysu.c", "score": 0, "max_score": 1, "output": ""}, {"name": "tester/function_test2020/00_main.sysu.c", "score": 0, "max_score": 1, "output": ""}, {"name": "tester/function_test2020/01_var_defn.sysu.c", "score": 0, "max_score": 1, "output": ""}, {"name": "tester/function_test2020/02_arr_defn4.sysu.c", "score": 0, "max_score": 1, "output": ""}, 
........（后面省略）}

请问这个报错是什么造成的？应该怎么处理？