[EVM] Add 'clone' implementation of EVMMachineFunctionInfo.

Author: PavelKopyl

llvm/lib/Target/EVM/EVMMachineFunctionInfo.cpp

@@ -14,3 +14,10 @@
 using namespace llvm;
 
 EVMFunctionInfo::~EVMFunctionInfo() = default; // anchor.
+
+MachineFunctionInfo *
+EVMFunctionInfo::clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF,
+                       const DenseMap<MachineBasicBlock *, MachineBasicBlock *>
+                           &Src2DstMBB) const {
+  return DestMF.cloneInfo<EVMFunctionInfo>(*this);
+}

llvm/lib/Target/EVM/EVMMachineFunctionInfo.h

@@ -37,12 +37,13 @@ class EVMFunctionInfo final : public MachineFunctionInfo {
 public:
   explicit EVMFunctionInfo(MachineFunction &MF) {}
   EVMFunctionInfo(const Function &F, const TargetSubtargetInfo *STI) {}
-  EVMFunctionInfo(const EVMFunctionInfo &) = delete;
-  EVMFunctionInfo(EVMFunctionInfo &&) = delete;
-  EVMFunctionInfo &operator=(const EVMFunctionInfo &) = delete;
-  EVMFunctionInfo &operator=(EVMFunctionInfo &&) = delete;
   ~EVMFunctionInfo() override;
 
+  MachineFunctionInfo *
+  clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF,
+        const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB)
+      const override;
+
   void stackifyVReg(MachineRegisterInfo &MRI, unsigned VReg) {
     assert(MRI.getUniqueVRegDef(VReg));
     auto I = Register::virtReg2Index(VReg);