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[MemorySSA] Use GraphDiff info when computing IDF.
authorAlina Sbirlea <asbirlea@google.com>
Wed, 19 Jun 2019 21:17:31 +0000 (21:17 +0000)
committerAlina Sbirlea <asbirlea@google.com>
Wed, 19 Jun 2019 21:17:31 +0000 (21:17 +0000)
commit074585884ab67165e1d1cf890b6b90b5dd26d4e2
treec756737a4a7d30abb23df46989dcce16e35d3c0a
parente178dff4d32f1dff4032c644e89092b6df18d040
[MemorySSA] Use GraphDiff info when computing IDF.

Summary:
When computing IDF for insert updates, ensure we use the snapshot CFG offered by GraphDiff.
Caught by D63389.

Reviewers: kuhar, george.burgess.iv

Subscribers: jlebar, Prazek, llvm-commits, Szelethus

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63443

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363879 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Analysis/MemorySSAUpdater.cpp