Dan Gohman a0697a7ef5 Add a comment describing why transforming (shl x, 1) to (add x, x) is to be
considered safe enough in this context.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133159 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16 15:55:48 +00:00
..