hg: jdk9/hs-comp/hotspot: 8057038: Speculative traps not robust when compilation and class unloading are concurrent

[roland.westrelin at oracle.com]

Changeset: 5a313cfb5637
Author:    roland
Date:      2014-08-02 06:15 +0200
URL:       http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/5a313cfb5637

8057038: Speculative traps not robust when compilation and class unloading are concurrent
Summary: speculative traps can be removed from MDO while being copied by compiler
Reviewed-by: kvn, iveresov

! src/share/vm/ci/ciMethodData.cpp
! src/share/vm/ci/ciMethodData.hpp
! src/share/vm/oops/methodData.cpp
! src/share/vm/oops/methodData.hpp