tree 255ed8fb7b8911de8afb50a2266df306e1b6ecae
parent 8892b6f30792bbc56f40d01a4ae9834a55cf8b1a
author Chris Lattner <sabre@nondot.org> 1213597151 +0000
committer Chris Lattner <sabre@nondot.org> 1213597151 +0000

If we are checking to see if the result of a call aliases a
pointer derived from a local allocation, if the local allocation
never escapes, the pointers can't alias.  This implements PR2436


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52301 91177308-0d34-0410-b5e6-96231b3b80d8