[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, 2 insertions, 2 deletions

diff --git a/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp b/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
index 2e838de..9b7af3b 100644
--- a/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
+++ b/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
@@ -814,8 +814,8 @@ void updatePublicTypeTestCalls(Module &M,
     for (Use &U : make_early_inc_range(PublicTypeTestFunc->uses())) {
       auto *CI = cast<CallInst>(U.getUser());
       auto *NewCI = CallInst::Create(
-          TypeTestFunc, {CI->getArgOperand(0), CI->getArgOperand(1)}, None, "",
-          CI);
+          TypeTestFunc, {CI->getArgOperand(0), CI->getArgOperand(1)},
+          std::nullopt, "", CI);
       CI->replaceAllUsesWith(NewCI);
       CI->eraseFromParent();
     }