set(LLVM_EXECUTABLE_REGEX [[^([^.]*|[^.]*\.lld)\.exe$]])
foreach(el "bugpoint.exe" "ld.lld.exe" "asdf.dll" "asdf")
	message(STATUS "Matching ${el}")
	if(el MATCHES "${LLVM_EXECUTABLE_REGEX}")
		message(STATUS "Matching ${el} - match (${CMAKE_MATCH_1}).")
	else()
		message(STATUS "Matching ${el} - no match.")
	endif()
endforeach()