Support CMPXCHG reg, reg on amd64.  (Vince Weaver, vince@csl.cornell.edu).
Fixes #246311.


git-svn-id: svn://svn.valgrind.org/vex/trunk@2048 8f6e269a-dfd6-0310-a8e1-e2731360e62c
1 file changed