Hi,
Sorry that I failed to subscribe cfe-dev mailing list, so I just post in llvm-dev instead.
Bug reported by the clang static analyzer.
Description: Use of memory after it is freed
File: /home/loongson/zhaixiang/jdk12-mips-llvm/src/java.base/share/native/libverify/check_code.c[1]
Line: 1328
Preprocessed file[2] is available.
I argue that Use of memory after it is freed is *False Positive*
----- 8< -------- 8< -------- 8< -------- 8< -------- 8< -------- 8< ---
src/java.base/share/native/libverify/check_code.c:1328:22: warning: Use of memory after it is freed
clazz_info = cp_index_to_class_fullinfo(context, key,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
----- 8< -------- 8< -------- 8< -------- 8< -------- 8< -------- 8< ---
Full analyzer log and invocation[3] is available too. Please change include file path, for example, /home/loongson/zhaixiang/jdk12-mips-llvm/src/java.base/share/native/libjava change to YOUR_OPENJDK_SRC_DIR/src/java.base/share/native/libjava
Perhaps it doesn't need to include the *build* directories, otherwise it is difficult to reproduce the issue 
Cheers,
Leslie Zhai
[1] jdk/jdk12: 0276cba45aac src/java.base/share/native/libverify/check_code.c
[2] https://raw.githubusercontent.com/xiangzhai/jdk-dev/master/check_code.c
[3] https://raw.githubusercontent.com/xiangzhai/jdk-dev/master/check_code_analyzer.log