If libLLVM-$version.so file is missing, use "llvm-config --libs".
This is the case with CMake-built LLVM always.
Downside is - pocl nolonger nags about you forgetting to ./configure-build
LLVM with --enable-shared.
AddressSpace casts are no-ops for ARM in LLVM again, don't handle them in the
LLVM passes.
Compile 'verify' function only in debug mode to avoid unused function warning.
No functionality change intended, even if the diff does look funny.
Use LLC_HOST_CPU rather than HOST_CPU to emphasize this variable is in llc syntax.
Mark XFAILs on ARMv7 and LLVM 3.4 :(