[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, 4 insertions, 4 deletions

diff --git a/llvm/lib/Transforms/Scalar/LoopUnrollAndJamPass.cpp b/llvm/lib/Transforms/Scalar/LoopUnrollAndJamPass.cpp
index 81018d7..596e0d4 100644
--- a/llvm/lib/Transforms/Scalar/LoopUnrollAndJamPass.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopUnrollAndJamPass.cpp
@@ -284,11 +284,11 @@ tryToUnrollAndJamLoop(Loop *L, DominatorTree &DT, LoopInfo *LI,
                       ScalarEvolution &SE, const TargetTransformInfo &TTI,
                       AssumptionCache &AC, DependenceInfo &DI,
                       OptimizationRemarkEmitter &ORE, int OptLevel) {
-  TargetTransformInfo::UnrollingPreferences UP =
-      gatherUnrollingPreferences(L, SE, TTI, nullptr, nullptr, ORE, OptLevel,
-                                 None, None, None, None, None, None);
+  TargetTransformInfo::UnrollingPreferences UP = gatherUnrollingPreferences(
+      L, SE, TTI, nullptr, nullptr, ORE, OptLevel, std::nullopt, std::nullopt,
+      std::nullopt, std::nullopt, std::nullopt, std::nullopt);
   TargetTransformInfo::PeelingPreferences PP =
-      gatherPeelingPreferences(L, SE, TTI, None, None);
+      gatherPeelingPreferences(L, SE, TTI, std::nullopt, std::nullopt);
 
   TransformationMode EnableMode = hasUnrollAndJamTransformation(L);
   if (EnableMode & TM_Disable)