Implement SSE4 MOVNTDQA insn.  Fixes #316503.
(Patrick J. LoPresti, lopresti@gmail.com)


git-svn-id: svn://svn.valgrind.org/vex/trunk@2700 8f6e269a-dfd6-0310-a8e1-e2731360e62c
Implement RDTSCP on amd64, finally.  This fixes #251569 and dups
311933, 313348 and 313354.


git-svn-id: svn://svn.valgrind.org/vex/trunk@2701 8f6e269a-dfd6-0310-a8e1-e2731360e62c