tree c254fe0e26bbf36b2eab75ff65a2a209340835fd
parent 2fd5691529569cb0855477e6743875176411cc99
author Piotr Padlewski <piotr.padlewski@gmail.com> 1526687577 +0000
committer Piotr Padlewski <piotr.padlewski@gmail.com> 1526687577 +0000

Constant fold launder of null and undef

Summary:
This might be useful because clang will add
some barriers for pointer comparisons.

Reviewers: majnemer, dberlin, hfinkel, nlewycky, davide, rsmith, amharc,
kuhar

Subscribers: davide, amharc, llvm-commits

Differential Revision: https://reviews.llvm.org/D32423

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@332786 91177308-0d34-0410-b5e6-96231b3b80d8