From 1adfdab39936e3fe6f4b7bca945f3d46b4b075e3 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu@google.com>
Date: Sat, 10 Dec 2022 10:40:35 -0800
Subject: [PATCH] [ComplexToLibm] Use std::optional in ComplexToLibm.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
---
 mlir/lib/Conversion/ComplexToLibm/ComplexToLibm.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/mlir/lib/Conversion/ComplexToLibm/ComplexToLibm.cpp b/mlir/lib/Conversion/ComplexToLibm/ComplexToLibm.cpp
index fa8db2c..cf98263 100644
--- a/mlir/lib/Conversion/ComplexToLibm/ComplexToLibm.cpp
+++ b/mlir/lib/Conversion/ComplexToLibm/ComplexToLibm.cpp
@@ -12,6 +12,7 @@
 #include "mlir/Dialect/Func/IR/FuncOps.h"
 #include "mlir/IR/PatternMatch.h"
 #include "mlir/Pass/Pass.h"
+#include <optional>
 
 namespace mlir {
 #define GEN_PASS_DEF_CONVERTCOMPLEXTOLIBM
@@ -24,7 +25,7 @@ namespace {
 // Functor to resolve the function name corresponding to the given complex
 // result type.
 struct ComplexTypeResolver {
-  llvm::Optional<bool> operator()(Type type) const {
+  std::optional<bool> operator()(Type type) const {
     auto complexType = type.cast<ComplexType>();
     auto elementType = complexType.getElementType();
     if (!elementType.isa<Float32Type, Float64Type>())
@@ -37,7 +38,7 @@ struct ComplexTypeResolver {
 // Functor to resolve the function name corresponding to the given float result
 // type.
 struct FloatTypeResolver {
-  llvm::Optional<bool> operator()(Type type) const {
+  std::optional<bool> operator()(Type type) const {
     auto elementType = type.cast<FloatType>();
     if (!elementType.isa<Float32Type, Float64Type>())
       return {};
-- 
2.7.4