Problematic sparc intrinsic: com.sun.crypto.provider.CipherBlockChaining

Seeing some random test failures involving these hotspot intrinsics :
com.sun.crypto.provider.CipherBlockChaining::decrypt
com.sun.crypto.provider.CipherBlockChaining::encrypt

# JRE version: Java(TM) SE Runtime Environment (8.0_71-b15) (build 1.8.0_71-b15)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.71-b15 mixed mode solaris-sparc compressed oops)
# Problematic frame:
# J 1082 C2 com.sun.crypto.provider.CipherCore.doFinal([BII[BI)I (640 bytes) @ 0xffffffff6bb24f84 [0xffffffff6bb24b20+0x464]

Originally I saw it in this testcase: jdk/test/com/sun/crypto/provider/Cipher/PBE/PBESameBuffer/PBESameBuffer.java

I've managed to reduce that test case code and will attach to bug. (AESIntrinsics.java). I've only seen this failure (after a few minutes of running) on solaris 10 platforms to date. I tried on solaris 11 and could not reproduce. I was only able to reproduce on JDK 8u also. JDK 11 doesn't run on solaris 10 which was the test system OS I had.

Will attach test output from failing system. I've tested various JDK versions and these are my findings to date :

8u66: no failure
8u71: failure
I can reproduce the failure on current jdk8u-dev builds also.

I don't see failure if I use the -XX:-UseAESIntrinsics option.