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[Scalar] Use std::optional in LoopFlatten.cpp (NFC) 

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 00:02:40 -08:00
parent 7fc772bbdc
commit bba55813fc
1 changed files with 3 additions and 2 deletions
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5
llvm/lib/Transforms/Scalar/LoopFlatten.cpp
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@ -75,6 +75,7 @@
#include "llvm/Transforms/Utils/LoopUtils.h"
#include "llvm/Transforms/Utils/ScalarEvolutionExpander.h"
#include "llvm/Transforms/Utils/SimplifyIndVar.h"
#include <optional>
using namespace llvm;
using namespace llvm::PatternMatch;
@ -913,7 +914,7 @@ PreservedAnalyses LoopFlattenPass::run(LoopNest &LN, LoopAnalysisManager &LAM,
bool Changed = false;
Optional<MemorySSAUpdater> MSSAU;
std::optional<MemorySSAUpdater> MSSAU;
if (AR.MSSA) {
MSSAU = MemorySSAUpdater(AR.MSSA);
if (VerifyMemorySSA)
@ -983,7 +984,7 @@ bool LoopFlattenLegacyPass::runOnFunction(Function &F) {
auto *AC = &getAnalysis<AssumptionCacheTracker>().getAssumptionCache(F);
auto *MSSA = getAnalysisIfAvailable<MemorySSAWrapperPass>();
Optional<MemorySSAUpdater> MSSAU;
std::optional<MemorySSAUpdater> MSSAU;
if (MSSA)
MSSAU = MemorySSAUpdater(&MSSA->getMSSA());