This pseudo-instruction expands into 'sethi' and 'or' instructions, or, just one of them, if the other isn't necessary for a given value. Differential Revision: http://reviews.llvm.org/D9089 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237585 91177308-0d34-0410-b5e6-96231b3b80d8