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-rw-r--r--llvm/lib/CodeGen/UnreachableBlockElim.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/UnreachableBlockElim.cpp b/llvm/lib/CodeGen/UnreachableBlockElim.cpp
index 8194f3ca5610..6e3b69b4b961 100644
--- a/llvm/lib/CodeGen/UnreachableBlockElim.cpp
+++ b/llvm/lib/CodeGen/UnreachableBlockElim.cpp
@@ -195,6 +195,8 @@ bool UnreachableMachineBlockElim::runOnMachineFunction(MachineFunction &F) {
}
F.RenumberBlocks();
+ if (MDT)
+ MDT->updateBlockNumbers();
return (!DeadBlocks.empty() || ModifiedPHI);
}