git: openjdk/jdk20: 8294902: Undefined Behavior in C2 regalloc with null references

[Andrew Haley]

Changeset: 0bbc4181
Author:    Andrew Haley <aph at openjdk.org>
Date:      2022-12-14 13:32:21 +0000
URL:       https://git.openjdk.org/jdk20/commit/0bbc4181cdbccfc3a542f306ce1902cc2e9f36cb

8294902: Undefined Behavior in C2 regalloc with null references

Reviewed-by: kvn, vlivanov

! src/hotspot/share/memory/arena.cpp
! src/hotspot/share/opto/bytecodeInfo.cpp
! src/hotspot/share/opto/chaitin.hpp
! src/hotspot/share/opto/postaloc.cpp
! src/hotspot/share/runtime/vmStructs.hpp
! src/hotspot/share/utilities/globalDefinitions.hpp
! src/hotspot/share/utilities/globalDefinitions_gcc.hpp