Sanjoy Das 51c83cddb6 [IRCE] Add comments, NFC.
This change adds some comments that justify why a potentially
overflowing operation is safe.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232445 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-17 00:42:16 +00:00
..
2015-03-06 10:11:25 +00:00