Sanjoy Das eef785c1a5 [ImplicitNullCheck] Add alias analysis usage ...

Summary:
With this change ImplicitNullCheck optimization uses alias analysis
and can use load/store memory access for implicit null check if there
are other load/store before but memory accesses do not alias.

Patch by Serguei Katkov!

Reviewers: sanjoy

Reviewed By: sanjoy

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D30331

llvm-svn: 296440

2017-02-28 07:04:49 +00:00

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