From 87d9ec2a4021ad50b09e987a517e88a909dc18b5 Mon Sep 17 00:00:00 2001 From: Alina Sbirlea Date: Thu, 5 Sep 2019 16:58:15 +0000 Subject: [PATCH] [MemorySSA] Verify MSSAUpdater exists. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@371087 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Utils/BasicBlockUtils.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/lib/Transforms/Utils/BasicBlockUtils.cpp b/lib/Transforms/Utils/BasicBlockUtils.cpp index 45c0b026a47..d4c718df4a4 100644 --- a/lib/Transforms/Utils/BasicBlockUtils.cpp +++ b/lib/Transforms/Utils/BasicBlockUtils.cpp @@ -251,7 +251,8 @@ bool llvm::MergeBlockIntoPredecessor(BasicBlock *BB, DomTreeUpdater *DTU, for (auto &DVI : DbgValues) { auto R = DbgValueSet.insert({DVI->getVariable(), DVI->getExpression()}); if (!R.second) { - MSSAU->removeMemoryAccess(DVI); + if (MSSAU) + MSSAU->removeMemoryAccess(DVI); DVI->eraseFromParent(); } } -- 2.50.1