hg: jdk9/hs-comp/hotspot: 8031498: Cleanup and re-factorize PhaseChaitin::build_ifg_physical

[niclas.adlertz at oracle.com]

Changeset: c84312468f5c
Author:    adlertz
Date:      2014-01-24 13:06 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/c84312468f5c

8031498: Cleanup and re-factorize PhaseChaitin::build_ifg_physical
Summary: Created sub-functions, added data structures, improved naming and removed unnecessary code
Reviewed-by: kvn, roland, rbackman

! src/share/vm/opto/chaitin.hpp
! src/share/vm/opto/ifg.cpp