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Re-land part of r354244 "[DAGCombiner] Eliminate dead stores to stack."
authorClement Courbet <courbet@google.com>
Thu, 21 Feb 2019 12:59:36 +0000 (12:59 +0000)
committerClement Courbet <courbet@google.com>
Thu, 21 Feb 2019 12:59:36 +0000 (12:59 +0000)
commit1fe90de461447ae4ee7a512d5fef344ad61f613c
tree8ea7e2263b0d43449fcede9b5f4400c45425a92d
parent75980a4cd5dd5bee96ba6926218fc8fa121ca877
Re-land part of r354244 "[DAGCombiner] Eliminate dead stores to stack."

This part introduces the lifetime node.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354578 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/CodeGen/SelectionDAG.h
include/llvm/CodeGen/SelectionDAGNodes.h
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp