i#337: only some cmpxchg and cmpxchg8b operands are compares
i#337: only some cmpxchg and cmpxchg8b operands are compares

SVN-Revision: 228

code4bones/drmemory,sigma-random/drmemory,sigma-random/drmemory,code4bones/drmemory,sigma-random/drmemory,LohithBlaze/drmemory,code4bones/drmemory,LohithBlaze/drmemory,LohithBlaze/drmemory,LohithBlaze/drmemory,sigma-random/drmemory,code4bones/drmemory,code4bones/drmemory,sigma-random/drmemory,LohithBlaze/drmemory