RFR[8u]: 8158639: C2 compilation fails with SIGSEGV

[david buck]

Hi!

Please review the backported changes of JDK-8158639 to 8u:

It is a very straightforward backport. The only two differences are:

- I added a convenience macro, get_method_at_bci(), from the change for 
8072008 to make the backport cleaner.

- I had to modify (remove) the package used for the testcase.

Bug Report:
[ 8158639: C2 compilation fails with SIGSEGV ]
https://bugs.openjdk.java.net/browse/JDK-8158639

JDK 9 changeset:
http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/119a2a3cc29b

8u-dev Webrev:
http://cr.openjdk.java.net/~dbuck/jdk8158639_8u_01/

Testing:
Manual verification and JPRT (default and hotspot testsets)

Cheers,
-Buck