git: openjdk/jdk: 8286104: use aggressive liveness for unstable_if traps

[Xin Liu]

Changeset: 31e50f2c
Author:    Xin Liu <xliu at openjdk.org>
Date:      2022-06-30 03:59:42 +0000
URL:       https://git.openjdk.org/jdk/commit/31e50f2c7642b046dc9ea1de8ec245dcbc4e1926

8286104: use aggressive liveness for unstable_if traps

Reviewed-by: kvn, thartmann

! src/hotspot/share/compiler/methodLiveness.hpp
! src/hotspot/share/opto/c2_globals.hpp
! src/hotspot/share/opto/callnode.cpp
! src/hotspot/share/opto/callnode.hpp
! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/compile.hpp
! src/hotspot/share/opto/graphKit.cpp
! src/hotspot/share/opto/graphKit.hpp
! src/hotspot/share/opto/ifnode.cpp
! src/hotspot/share/opto/node.cpp
! src/hotspot/share/opto/parse.hpp
! src/hotspot/share/opto/parse2.cpp
+ test/hotspot/jtreg/compiler/c2/TestFoldCompares2.java
+ test/hotspot/jtreg/compiler/c2/irTests/TestOptimizeUnstableIf.java