AddressSanitizer instrumentation for MOV and MOVAPS.

This is an initial version of *Sanitizer instrumentation of assembly code.

Patch by Yuri Gorshenin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203908 91177308-0d34-0410-b5e6-96231b3b80d8
Generalise assembly tests to not rely on anonymous symbol names



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203909 91177308-0d34-0410-b5e6-96231b3b80d8