According to A8.6.16 B (Encoding T3) and A8.3 Conditional execution -- A8.3.1

Pseudocode details of conditional, Condition bits '111x' indicate the
instruction is always executed.  That is, '1111' is a leagl condition field
value, which is now mapped to ARMCC::AL.

Also add a test case for condition field '1111'.

llvm-svn: 101817