hg: jdk/sandbox: 8242289: C2: Support platform-specific node cloning in Matcher

[chris.hegarty at oracle.com]

Changeset: 695e3037028c
Author:    vlivanov
Date:      2020-04-09 21:29 +0300
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/695e3037028c

8242289: C2: Support platform-specific node cloning in Matcher
Reviewed-by: kvn

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/arm/arm.ad
! src/hotspot/cpu/ppc/ppc.ad
! src/hotspot/cpu/s390/s390.ad
! src/hotspot/cpu/sparc/sparc.ad
! src/hotspot/cpu/x86/x86.ad
! src/hotspot/share/opto/matcher.cpp
! src/hotspot/share/opto/matcher.hpp