Revert the part of r107257 which introduced new logic for using
authorDan Gohman <gohman@apple.com>
Wed, 30 Jun 2010 17:27:11 +0000 (17:27 +0000)
committerDan Gohman <gohman@apple.com>
Wed, 30 Jun 2010 17:27:11 +0000 (17:27 +0000)
commit70eff630085cb1585858344324c78c7418524795
tree389255a0ab79cd7b092bf551a71bd42610cbbd8b
parenta71f0e1f2a7d6d2f030f147d6d426e5bb3b56328
Revert the part of r107257 which introduced new logic for using
nsw and nuw flags from IR Instructions. On further consideration,
this isn't valid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107298 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Analysis/ScalarEvolution.cpp
test/Analysis/ScalarEvolution/scev-aa.ll