cl.exe and directories under bin, host, targets?

I need a 64-bit hosted cl.exe compiler (something that can hopefully handle compiling large large functions that normally break 32-bit compilers that targets:

• i686
• x86_64/amd64
• arm

I noticed

F:\prog\vs2013\VC\bin\cl.exe
F:\prog\vs2013\VC\bin\amd64\cl.exe
F:\prog\vs2013\VC\bin\amd64_arm\cl.exe
F:\prog\vs2013\VC\bin\amd64_x86\cl.exe
F:\prog\vs2013\VC\bin\x86_amd64\cl.exe
F:\prog\vs2013\VC\bin\x86_arm\cl.exe

what type of targets do those directories handle, and what types of host do these handle?

please list the target,host for each, because this is to me unclear.

thanks.