hg: jdk10/hs: 8187547: PPC64: icache invalidation is incorrect in some places

[goetz.lindenmaier at sap.com]

Changeset: 50790528dd25
Author:    goetz
Date:      2017-09-25 08:43 +0200
URL:       http://hg.openjdk.java.net/jdk10/hs/rev/50790528dd25

8187547: PPC64: icache invalidation is incorrect in some places
Reviewed-by: mdoerr, goetz

! src/hotspot/cpu/ppc/macroAssembler_ppc.cpp
! src/hotspot/cpu/ppc/macroAssembler_ppc.hpp
! src/hotspot/cpu/ppc/nativeInst_ppc.cpp