Cleanup Store Merging in UseAA case

This patch fixes a bug (PR26827) when using anti-aliasing in store
merging. This sets the chain users of the component stores to point to
the new store instead of the component stores chain parent.

Reviewers: jyknight

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D18909

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266217 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed