[PATCH] D63443: [MemorySSA] Use GraphDiff info when computing IDF.

[Alina Sbirlea via Phabricator via llvm-commits]

asbirlea created this revision.
asbirlea added reviewers: kuhar, george.burgess.iv.
Herald added subscribers: Prazek, jlebar.
Herald added a project: LLVM.

When computing IDF for insert updates, ensure we use the snapshot CFG offered by GraphDiff.
Caught by D63389 <https://reviews.llvm.org/D63389>.


Repository:
  rL LLVM

https://reviews.llvm.org/D63443

Files:
  lib/Analysis/MemorySSAUpdater.cpp


Index: lib/Analysis/MemorySSAUpdater.cpp
===================================================================
--- lib/Analysis/MemorySSAUpdater.cpp
+++ lib/Analysis/MemorySSAUpdater.cpp
@@ -955,7 +955,7 @@
   // Compute IDF and add Phis in all IDF blocks that do not have one.
   SmallVector<BasicBlock *, 32> IDFBlocks;
   if (!BlocksToProcess.empty()) {
-    ForwardIDFCalculator IDFs(DT);
+    ForwardIDFCalculator IDFs(DT, GD);
     SmallPtrSet<BasicBlock *, 16> DefiningBlocks(BlocksToProcess.begin(),
                                                  BlocksToProcess.end());
     IDFs.setDefiningBlocks(DefiningBlocks);


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