hg: ppc-aix-port/jdk7u/hotspot: opto: initialize _node_regs_max_index

[goetz.lindenmaier at sap.com]

Changeset: ecf14bf95b1a
Author:    Goetz
Date:      2012-11-14 11:29 +0100
URL:       http://hg.openjdk.java.net/ppc-aix-port/jdk7u/hotspot/rev/ecf14bf95b1a

opto: initialize _node_regs_max_index

This is useful in tracing routines to check whether register
intformation is available.

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