hg: jdk8u/jdk8u-dev/hotspot: 8149543: range check CastII nodes should not be split through Phi

[roland.westrelin at oracle.com]

Changeset: 5c3f2bcc3b94
Author:    roland
Date:      2016-02-11 12:42 +0100
URL:       http://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/5c3f2bcc3b94

8149543: range check CastII nodes should not be split through Phi
Summary: splitting range check CastIIs through loop induction Phi prevents further optimizations
Reviewed-by: kvn, mcberg

! src/share/vm/opto/loopopts.cpp