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[CodeGen] Use std::optional in ShadowStackGCLowering.cpp (NFC)

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This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716
This commit is contained in:
Kazu Hirata 2022-11-26 15:09:25 -08:00
parent a5ef7bb5c1
commit 5b839fc2d0
1 changed files with 2 additions and 1 deletions
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3
llvm/lib/CodeGen/ShadowStackGCLowering.cpp
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@ -39,6 +39,7 @@
#include "llvm/Support/Casting.h"
#include "llvm/Transforms/Utils/EscapeEnumerator.h"
#include <cassert>
#include <optional>
#include <string>
#include <utility>
#include <vector>
@ -305,7 +306,7 @@ bool ShadowStackGCLowering::runOnFunction(Function &F) {
if (Roots.empty())
return false;
Optional<DomTreeUpdater> DTU;
std::optional<DomTreeUpdater> DTU;
if (auto *DTWP = getAnalysisIfAvailable<DominatorTreeWrapperPass>())
DTU.emplace(DTWP->getDomTree(), DomTreeUpdater::UpdateStrategy::Lazy);