[llvm] 3bb0c70 - [Scalar] Use std::optional in LoopUnrollPass.cpp (NFC)

[Kazu Hirata via llvm-commits]

Author: Kazu Hirata
Date: 2022-11-26T17:29:32-08:00
New Revision: 3bb0c7075b8a76cf3a740b9ef95ed049f44706e3

URL: https://github.com/llvm/llvm-project/commit/3bb0c7075b8a76cf3a740b9ef95ed049f44706e3
DIFF: https://github.com/llvm/llvm-project/commit/3bb0c7075b8a76cf3a740b9ef95ed049f44706e3.diff

LOG: [Scalar] Use std::optional in LoopUnrollPass.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

Added: 
    

Modified: 
    llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp b/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp
index aef67bf486c5..35a1a8da8606 100644
--- a/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp
@@ -64,6 +64,7 @@
 #include <cassert>
 #include <cstdint>
 #include <limits>
+#include <optional>
 #include <string>
 #include <tuple>
 #include <utility>
@@ -772,7 +773,7 @@ class UnrollCostEstimator {
   }
 };
 
-static Optional<unsigned>
+static std::optional<unsigned>
 shouldPragmaUnroll(Loop *L, const PragmaInfo &PInfo,
                    const unsigned TripMultiple, const unsigned TripCount,
                    const UnrollCostEstimator UCE,
@@ -800,7 +801,7 @@ shouldPragmaUnroll(Loop *L, const PragmaInfo &PInfo,
   return None;
 }
 
-static Optional<unsigned> shouldFullUnroll(
+static std::optional<unsigned> shouldFullUnroll(
     Loop *L, const TargetTransformInfo &TTI, DominatorTree &DT,
     ScalarEvolution &SE, const SmallPtrSetImpl<const Value *> &EphValues,
     const unsigned FullUnrollTripCount, const UnrollCostEstimator UCE,
@@ -830,7 +831,7 @@ static Optional<unsigned> shouldFullUnroll(
   return None;
 }
 
-static Optional<unsigned>
+static std::optional<unsigned>
 shouldPartialUnroll(const unsigned LoopSize, const unsigned TripCount,
                     const UnrollCostEstimator UCE,
                     const TargetTransformInfo::UnrollingPreferences &UP) {