hg: jdk9/hs-comp/hotspot: 8153357: C2 creates incorrect cast after eliminating phi with unique input

[zoltan.majo at oracle.com]

Changeset: ce2c9600918d
Author:    zmajo
Date:      2016-04-18 11:22 +0200
URL:       http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/ce2c9600918d

8153357: C2 creates incorrect cast after eliminating phi with unique input
Summary: Refine C2's logic to determine the type of cast node added.
Reviewed-by: kvn

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