[PATCH] [RFC] Compiler-RT on ARM via CMake

[Alexey Samsonov]

  1) We might want to fix the Clang driver to correctly build the expected name of sanitizer runtime libraries on ARM.  See addSanitizerRTLinkFlagsLinux in clang/lib/Driver/Tools.cpp - maybe on ARM we should use something different than ToolChain::getArchName().
  2) Your changes to lit.common.cfg shouldn't be necessary after r199979.
  3) You should also add "arm" to filter_available_targets line in lib/ubsan/CMakeLists.txt to enable building UBSan.

http://llvm-reviews.chandlerc.com/D2604