Nick Lewycky 79cce5c51b Add value range analyzing of Add and Sub.
Understand that mul %x, 1 = %x.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58069 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-24 04:00:26 +00:00
..
2008-09-25 21:00:45 +00:00