hg: ppc-aix-port/jdk7u/hotspot: ppc: fix safepoint node.

[goetz.lindenmaier at sap.com]

Changeset: ead239ac7b7a
Author:    Goetz
Date:      2013-01-08 16:26 +0100
URL:       http://hg.openjdk.java.net/ppc-aix-port/jdk7u/hotspot/rev/ead239ac7b7a

ppc: fix safepoint node.

Register allocation used r12 for ins to safepoint nodes, as the node
only kills r12. Loading the poll address to r12 resulted in double use
of the register.
Now add loadConPollAddr before register allocation.

! src/cpu/ppc/vm/compile_ppc.cpp
! src/cpu/ppc/vm/ppc.ad