From: Max Kazantsev <max.kazantsev@azul.com>
Date: Tue, 12 Feb 2019 08:10:29 +0000 (+0000)
Subject: Delete blocks from DTU to avoid dangling pointers
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2841bd0ff50e8285a47cf33e61b11934e3000d18;p=llvm

Delete blocks from DTU to avoid dangling pointers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353804 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/LoopSimplifyCFG.cpp b/lib/Transforms/Scalar/LoopSimplifyCFG.cpp
index 896f9dd001e..5bb6049c3ac 100644
--- a/lib/Transforms/Scalar/LoopSimplifyCFG.cpp
+++ b/lib/Transforms/Scalar/LoopSimplifyCFG.cpp
@@ -422,7 +422,7 @@ private:
     DTU.applyUpdates(DTUpdates);
     DTUpdates.clear();
     for (auto *BB : DeadLoopBlocks)
-      BB->eraseFromParent();
+      DTU.deleteBB(BB);
 
     NumLoopBlocksDeleted += DeadLoopBlocks.size();
   }