Jtreg test jdk/test/com/sun/crypto/provider/Cipher/CTS/CTSMode.java
failed with SIGSEGV on option "-Xcomp -XX:-TieredCompilation".
The crash happens at stub code cipherBlockChaining_decryptAESCrypt.
Checking the jdk source code CipherTextStealing.decryptFinal and its
callee CipherBlockChaining.decrypt/implDecrypt, we can see that
cipherLen which is passed to the stub code can be 0. The unexpected
len_reg value makes the load from invalid address.
The following patch could fix this issue:
It aligns with the Java code implementation and passed JTreg tests. To
make code consistent, I also update the encrypt part.