[llvm] 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, 2 insertions, 2 deletions

diff --git a/llvm/lib/FuzzMutate/Operations.cpp b/llvm/lib/FuzzMutate/Operations.cpp
index 0f618b3..8c6ec1e 100644
--- a/llvm/lib/FuzzMutate/Operations.cpp
+++ b/llvm/lib/FuzzMutate/Operations.cpp
@@ -163,7 +163,7 @@ OpDescriptor llvm::fuzzerop::splitBlockDescriptor(unsigned Weight) {
   SourcePred isInt1Ty{[](ArrayRef<Value *>, const Value *V) {
                         return V->getType()->isIntegerTy(1);
                       },
-                      None};
+                      std::nullopt};
   return {Weight, {isInt1Ty}, buildSplitBlock};
 }
 
@@ -182,7 +182,7 @@ OpDescriptor llvm::fuzzerop::gepDescriptor(unsigned Weight) {
   // TODO: Try to avoid meaningless accesses.
   SourcePred sizedType(
       [](ArrayRef<Value *>, const Value *V) { return V->getType()->isSized(); },
-      None);
+      std::nullopt);
   return {Weight, {sizedPtrType(), sizedType, anyIntType()}, buildGEP};
 }