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Summary: This change adds an "ImplicitNullChecks" target dependent pass. This pass folds null checks into memory operation using the FAULTING_LOAD pseudo-op introduced in previous patches. Depends on D10197 Depends on D10199 Depends on D10200 Reviewers: reames, rnk, pgavlin, JosephTremoulet, atrick Reviewed By: atrick Subscribers: ab, JosephTremoulet, llvm-commits Differential Revision: http://reviews.llvm.org/D10201 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239743 91177308-0d34-0410-b5e6-96231b3b80d8
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