[IRCE] Add comments, NFC.
authorSanjoy Das <sanjoy@playingwithpointers.com>
Tue, 17 Mar 2015 00:42:16 +0000 (00:42 +0000)
committerSanjoy Das <sanjoy@playingwithpointers.com>
Tue, 17 Mar 2015 00:42:16 +0000 (00:42 +0000)
commit51c83cddb6c9ddbee52687d029e26b26247fb8a2
tree6df7c0869d911da2a2ac3ce93955ae1998f541ce
parenteaf8532f7aba7c226ed37533f09b88e085067b8f
[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
lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp