[7u-dev] Request for approval for 8065618: C2 RA incorrectly removes kill projections

[Vladimir Kozlov]

7u backport request.  Changes were pushed into jdk9 more then week ago, 
no problems were found since then. Jdk9 changes were NOT applied to 8u 
cleanly because of RA code refactoring in jdk9. I did mistake during 
8065618 backport into 8u and additional changes have to be pushed into 
8u: 8066649.

For jdk7u I am pushing both 8065618 and 8066649:

http://cr.openjdk.java.net/~kvn/8065618_7u/webrev/

jdk8u 8065618:
http://cr.openjdk.java.net/~kvn/8065618_8u/webrev/
http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/dc763d49b82d
Review:
http://mail.openjdk.java.net/pipermail/hotspot-dev/2014-December/016275.html

jdk8u 8066649:
http://cr.openjdk.java.net/~kvn/8066649/webrev/
https://bugs.openjdk.java.net/browse/JDK-8066649
http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/3f4a5fdca318
Review:
http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2014-December/016458.html

jdk9:
http://cr.openjdk.java.net/~kvn/8065618/webrev/
https://bugs.openjdk.java.net/browse/JDK-8065618
http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/2aa1a6c41461
Review:
http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2014-November/016347.html