hg: jdk/sandbox: 8234160: Enable optimized mitigation for Intel jcc erratum in C2

[chris.hegarty at oracle.com]

Changeset: fe2befa06c39
Author:    eosterlund
Date:      2020-02-24 14:37 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/fe2befa06c39

8234160: Enable optimized mitigation for Intel jcc erratum in C2
Reviewed-by: thartmann, vlivanov, pliden

+ src/hotspot/cpu/x86/c2_intelJccErratum_x86.cpp
+ src/hotspot/cpu/x86/c2_intelJccErratum_x86.hpp
! src/hotspot/cpu/x86/gc/z/z_x86_64.ad
! src/hotspot/cpu/x86/vm_version_x86.cpp
! src/hotspot/cpu/x86/vm_version_x86.hpp
! src/hotspot/share/opto/node.hpp
! src/hotspot/share/opto/output.cpp