From be0a31d13bcf28577f65b8e189a8bb105b000274 Mon Sep 17 00:00:00 2001
From: Roman Lebedev <lebedev.ri@gmail.com>
Date: Fri, 8 Jan 2021 00:52:20 +0300
Subject: [PATCH] [SimplifyCFG] DeleteDeadBlocks(): switch to non-permissive
 DomTree updates

No actual changes needed, DetatchDeadBlocks() was already doing the right thing.
---
 llvm/lib/Transforms/Utils/BasicBlockUtils.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp b/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp
index 4d99067..0b3a259 100644
--- a/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp
+++ b/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp
@@ -105,7 +105,7 @@ void llvm::DeleteDeadBlocks(ArrayRef <BasicBlock *> BBs, DomTreeUpdater *DTU,
   DetatchDeadBlocks(BBs, DTU ? &Updates : nullptr, KeepOneInputPHIs);
 
   if (DTU)
-    DTU->applyUpdatesPermissive(Updates);
+    DTU->applyUpdates(Updates);
 
   for (BasicBlock *BB : BBs)
     if (DTU)
-- 
2.7.4