tree 6e8366fed7759721a622f36ba0adb47754b4a647
parent b54a0ac20ac76f845026eab8fca112d1d40927de
author Chandler Carruth <chandlerc@gmail.com> 1388892509 +0000
committer Chandler Carruth <chandlerc@gmail.com> 1388892509 +0000

Add support to the pattern match library for matching NSW and NUW
instructions. I needed this for a quick experiment I was making, and
while I've no idea if that will ever get committed, I didn't want to
throw away the pattern match code and for anyone else to have to write
it again. I've added unittests to make sure this works correctly.

In fun news, this also uncovered the IRBuilder bug. Doh!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198541 91177308-0d34-0410-b5e6-96231b3b80d8