[Target] llvm::Optional => std::optional

The updated functions are mostly internal with a few exceptions (virtual functions in
TargetInstrInfo.h, TargetRegisterInfo.h).
To minimize changes to LLVMCodeGen, GlobalISel files are skipped.

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.cpp
index 40a4b7d..e60f139 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.cpp
@@ -50,7 +50,7 @@ using namespace llvm;
 // SelectionDAGISel::runOnMachineFunction.  We have to do it in two places
 // because we want to do it while building the selection DAG for uses of alloca,
 // but not all alloca instructions are used so we have to follow up afterwards.
-Optional<unsigned>
+std::optional<unsigned>
 WebAssemblyFrameLowering::getLocalForStackObject(MachineFunction &MF,
                                                  int FrameIndex) {
   MachineFrameInfo &MFI = MF.getFrameInfo();