Created on behalf of Sidraya Jayagond.

When running the following tests:
- compiler/interpreter/TestVerifyStackAfterDeopt.java
- compiler/interpreter/VerifyStackWithUnreachableBlock.java

The VM crashes with "guarantee(last != NULL) failed: last may not be null" when running with -XX:+VerifyStack (debug build only).

The failure is similar to the PPC bug JDK-8288105.