[Transforms] Use std::nullopt instead of None (NFC)

This patch mechanically replaces None with std::nullopt where the
compiler would warn if None were deprecated.  The intent is to reduce
the amount of manual work required in migrating from Optional to
std::optional.

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

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/Transforms/Utils/InlineFunction.cpp b/llvm/lib/Transforms/Utils/InlineFunction.cpp
index af2ae79..a46e469 100644
--- a/llvm/lib/Transforms/Utils/InlineFunction.cpp
+++ b/llvm/lib/Transforms/Utils/InlineFunction.cpp
@@ -1083,7 +1083,7 @@ void ScopedAliasMetadataDeepCloner::clone() {
 
   SmallVector<TempMDTuple, 16> DummyNodes;
   for (const MDNode *I : MD) {
-    DummyNodes.push_back(MDTuple::getTemporary(I->getContext(), None));
+    DummyNodes.push_back(MDTuple::getTemporary(I->getContext(), std::nullopt));
     MDMap[I].reset(DummyNodes.back().get());
   }
 
@@ -1896,7 +1896,8 @@ static void updateCallProfile(Function *Callee, const ValueToValueMapTy &VMap,
                               BlockFrequencyInfo *CallerBFI) {
   if (CalleeEntryCount.isSynthetic() || CalleeEntryCount.getCount() < 1)
     return;
-  auto CallSiteCount = PSI ? PSI->getProfileCount(TheCall, CallerBFI) : None;
+  auto CallSiteCount =
+      PSI ? PSI->getProfileCount(TheCall, CallerBFI) : std::nullopt;
   int64_t CallCount =
       std::min(CallSiteCount.value_or(0), CalleeEntryCount.getCount());
   updateProfileCallee(Callee, -CallCount, &VMap);