Eric Christopher 89bd71fc53 Add support for the 'x' constraint.
Part of rdar://9307836 and rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134215 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-01 00:14:47 +00:00
..
2011-07-01 00:14:47 +00:00
2011-06-30 23:23:01 +00:00