git: openjdk/jdk: 8296545: C2 Blackholes should allow load optimizations

[Aleksey Shipilev]

Changeset: eab0ada3
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2022-12-05 12:00:30 +0000
URL:       https://git.openjdk.org/jdk/commit/eab0ada3a16a432fdfd1f0b8fceca149c725451b

8296545: C2 Blackholes should allow load optimizations

Reviewed-by: kvn, vlivanov

! src/hotspot/share/opto/cfgnode.cpp
! src/hotspot/share/opto/cfgnode.hpp
! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/opto/memnode.cpp
! src/hotspot/share/opto/memnode.hpp
! src/hotspot/share/runtime/vmStructs.cpp
+ test/hotspot/jtreg/compiler/c2/irTests/blackhole/BlackholeLoadOptoTest.java