Apply the patch from PR14160. I failed to construct a testcase for this, but
authorDuncan Sands <baldrick@free.fr>
Sun, 4 Nov 2012 09:02:45 +0000 (09:02 +0000)
committerDuncan Sands <baldrick@free.fr>
Sun, 4 Nov 2012 09:02:45 +0000 (09:02 +0000)
commit71c2070e2d05c0a6e4a77f43a62ab28b29361639
tree927996b7be0f8baf02273f9a46fbbb277f6131d8
parent080b01e622f65ad02e4420a91c887ffde116d9e3
Apply the patch from PR14160.  I failed to construct a testcase for this, but
I'm applying it anyway since it seems to be obviously correct.

llvm-svn: 167370
llvm/lib/Analysis/BasicAliasAnalysis.cpp