Benjamin Kramer 2a3719125f LVI: Recognize the form instcombine canonicalizes range checks into when forming constant ranges.
This could probably be made a lot smarter, but this is a common case and doesn't require LVI to scan a lot
of code. With this change CVP can optimize away the "shift == 0" case in Hashing.h that only gets hit when
"shift" is in a range not containing 0.

llvm-svn: 151919
2012-03-02 15:34:43 +00:00
..
2012-03-02 02:11:47 +00:00
2012-03-01 22:19:54 +00:00
2012-02-28 15:35:52 +00:00