-Wdeprecated-clean: Fix cases of violating the rule of 5 in ways that are deprecated in C++11

Various targets use std::swap on specific MCAsmOperands (ARM and
possibly Hexagon as well). It might be helpful to mark those subclasses
as final, to ensure that the availability of move/copy operations can't
lead to slicing. (same sort of requirements as the non-vitual dtor -
protected or a final class)

llvm-svn: 243820

2 files changed, 10 insertions, 83 deletions

diff --git a/llvm/include/llvm/MC/MCParser/MCParsedAsmOperand.h b/llvm/include/llvm/MC/MCParser/MCParsedAsmOperand.h
index a25108a0eff..64fa356e15c 100644
--- a/llvm/include/llvm/MC/MCParser/MCParsedAsmOperand.h
+++ b/llvm/include/llvm/MC/MCParser/MCParsedAsmOperand.h
@@ -30,9 +30,17 @@ class MCParsedAsmOperand {
   /// MS-style inline assembly.
   std::string Constraint;
 
+protected:
+  // This only seems to need to be movable (by ARMOperand) but ARMOperand has
+  // lots of members and MSVC doesn't support defaulted move ops, so to avoid
+  // that verbosity, just rely on defaulted copy ops. It's only the Constraint
+  // string member that would benefit from movement anyway.
+  MCParsedAsmOperand(const MCParsedAsmOperand &RHS) = default;
+  MCParsedAsmOperand &operator=(const MCParsedAsmOperand&) = default;
+  MCParsedAsmOperand() = default;
+
 public:
-  MCParsedAsmOperand() {}
-  virtual ~MCParsedAsmOperand() {}
+  virtual ~MCParsedAsmOperand() = default;
 
   void setConstraint(StringRef C) { Constraint = C.str(); }
   StringRef getConstraint() { return Constraint; }
diff --git a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 6d8377178e6..2d291bf8652 100644
--- a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -563,87 +563,6 @@ class ARMOperand : public MCParsedAsmOperand {
 
 public:
   ARMOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
-  ARMOperand(const ARMOperand &o) : MCParsedAsmOperand() {
-    Kind = o.Kind;
-    StartLoc = o.StartLoc;
-    EndLoc = o.EndLoc;
-    switch (Kind) {
-    case k_CondCode:
-      CC = o.CC;
-      break;
-    case k_ITCondMask:
-      ITMask = o.ITMask;
-      break;
-    case k_Token:
-      Tok = o.Tok;
-      break;
-    case k_CCOut:
-    case k_Register:
-      Reg = o.Reg;
-      break;
-    case k_RegisterList:
-    case k_DPRRegisterList:
-    case k_SPRRegisterList:
-      Registers = o.Registers;
-      break;
-    case k_VectorList:
-    case k_VectorListAllLanes:
-    case k_VectorListIndexed:
-      VectorList = o.VectorList;
-      break;
-    case k_CoprocNum:
-    case k_CoprocReg:
-      Cop = o.Cop;
-      break;
-    case k_CoprocOption:
-      CoprocOption = o.CoprocOption;
-      break;
-    case k_Immediate:
-      Imm = o.Imm;
-      break;
-    case k_MemBarrierOpt:
-      MBOpt = o.MBOpt;
-      break;
-    case k_InstSyncBarrierOpt:
-      ISBOpt = o.ISBOpt;
-    case k_Memory:
-      Memory = o.Memory;
-      break;
-    case k_PostIndexRegister:
-      PostIdxReg = o.PostIdxReg;
-      break;
-    case k_MSRMask:
-      MMask = o.MMask;
-      break;
-    case k_BankedReg:
-      BankedReg = o.BankedReg;
-      break;
-    case k_ProcIFlags:
-      IFlags = o.IFlags;
-      break;
-    case k_ShifterImmediate:
-      ShifterImm = o.ShifterImm;
-      break;
-    case k_ShiftedRegister:
-      RegShiftedReg = o.RegShiftedReg;
-      break;
-    case k_ShiftedImmediate:
-      RegShiftedImm = o.RegShiftedImm;
-      break;
-    case k_RotateImmediate:
-      RotImm = o.RotImm;
-      break;
-    case k_ModifiedImmediate:
-      ModImm = o.ModImm;
-      break;
-    case k_BitfieldDescriptor:
-      Bitfield = o.Bitfield;
-      break;
-    case k_VectorIndex:
-      VectorIndex = o.VectorIndex;
-      break;
-    }
-  }
 
   /// getStartLoc - Get the location of the first token of this operand.
   SMLoc getStartLoc() const override { return StartLoc; }