From c1da063a1b6e627212414fe7896fd964b0e3532a Mon Sep 17 00:00:00 2001
From: Rusty Wagner <rusty@vector35.com>
Date: Tue, 10 Nov 2020 21:50:58 -0500
Subject: Fix warnings

---
 examples/llil_parser/src/llil_parser.cpp |  4 +--
 examples/mlil_parser/src/mlil_parser.cpp |  4 +--
 highlevelilinstruction.cpp               | 32 +++++++++++-----------
 lowlevelilinstruction.cpp                | 34 +++++++++++------------
 mediumlevelilinstruction.cpp             | 46 ++++++++++++++++----------------
 5 files changed, 60 insertions(+), 60 deletions(-)

diff --git a/examples/llil_parser/src/llil_parser.cpp b/examples/llil_parser/src/llil_parser.cpp
index 8df89558..b7c96c22 100644
--- a/examples/llil_parser/src/llil_parser.cpp
+++ b/examples/llil_parser/src/llil_parser.cpp
@@ -272,7 +272,7 @@ static void PrintILExpr(const LowLevelILInstruction& instr, size_t indent)
 		case SSARegisterListLowLevelOperand:
 			PrintIndent(indent);
 			printf("ssa reg list ");
-			for (auto& i : operand.GetSSARegisterList())
+			for (auto i : operand.GetSSARegisterList())
 			{
 				PrintRegister(instr.function, i.reg);
 				printf("#%" PRIdPTR " ", i.version);
@@ -283,7 +283,7 @@ static void PrintILExpr(const LowLevelILInstruction& instr, size_t indent)
 		case SSAFlagListLowLevelOperand:
 			PrintIndent(indent);
 			printf("ssa reg list ");
-			for (auto& i : operand.GetSSAFlagList())
+			for (auto i : operand.GetSSAFlagList())
 			{
 				PrintFlag(instr.function, i.flag);
 				printf("#%" PRIdPTR " ", i.version);
diff --git a/examples/mlil_parser/src/mlil_parser.cpp b/examples/mlil_parser/src/mlil_parser.cpp
index 1a347dc3..e14c9317 100644
--- a/examples/mlil_parser/src/mlil_parser.cpp
+++ b/examples/mlil_parser/src/mlil_parser.cpp
@@ -213,7 +213,7 @@ static void PrintILExpr(const MediumLevelILInstruction& instr, size_t indent)
 		case VariableListMediumLevelOperand:
 			PrintIndent(indent);
 			printf("var list ");
-			for (auto& i : operand.GetVariableList())
+			for (auto i : operand.GetVariableList())
 			{
 				PrintVariable(instr.function, i);
 				printf(" ");
@@ -224,7 +224,7 @@ static void PrintILExpr(const MediumLevelILInstruction& instr, size_t indent)
 		case SSAVariableListMediumLevelOperand:
 			PrintIndent(indent);
 			printf("ssa var list ");
-			for (auto& i : operand.GetSSAVariableList())
+			for (auto i : operand.GetSSAVariableList())
 			{
 				PrintVariable(instr.function, i.var);
 				printf("#%" PRIdPTR " ", i.version);
diff --git a/highlevelilinstruction.cpp b/highlevelilinstruction.cpp
index e4ad6c7b..2469f800 100644
--- a/highlevelilinstruction.cpp
+++ b/highlevelilinstruction.cpp
@@ -463,7 +463,7 @@ const HighLevelILInstruction HighLevelILInstructionList::operator[](size_t i) co
 HighLevelILInstructionList::operator vector<HighLevelILInstruction>() const
 {
 	vector<HighLevelILInstruction> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -521,7 +521,7 @@ const SSAVariable HighLevelILSSAVariableList::operator[](size_t i) const
 HighLevelILSSAVariableList::operator vector<SSAVariable>() const
 {
 	vector<SSAVariable> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -665,7 +665,7 @@ const HighLevelILOperand HighLevelILOperandList::operator[](size_t i) const
 HighLevelILOperandList::operator vector<HighLevelILOperand>() const
 {
 	vector<HighLevelILOperand> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -1237,7 +1237,7 @@ ExprId HighLevelILInstruction::CopyTo(HighLevelILFunction* dest,
 	case HLIL_NOP:
 		return dest->Nop(*this);
 	case HLIL_BLOCK:
-		for (auto& i : GetBlockExprs<HLIL_BLOCK>())
+		for (auto i : GetBlockExprs<HLIL_BLOCK>())
 			params.push_back(subExprHandler(i));
 		return dest->Block(params, *this);
 	case HLIL_IF:
@@ -1268,12 +1268,12 @@ ExprId HighLevelILInstruction::CopyTo(HighLevelILFunction* dest,
 			subExprHandler(GetUpdateExpr<HLIL_FOR_SSA>()),
 			subExprHandler(GetLoopExpr<HLIL_FOR_SSA>()), *this);
 	case HLIL_SWITCH:
-		for (auto& i : GetCases<HLIL_SWITCH>())
+		for (auto i : GetCases<HLIL_SWITCH>())
 			params.push_back(subExprHandler(i));
 		return dest->Switch(subExprHandler(GetConditionExpr<HLIL_SWITCH>()),
 			subExprHandler(GetDefaultExpr<HLIL_SWITCH>()), params, *this);
 	case HLIL_CASE:
-		for (auto& i : GetValueExprs<HLIL_CASE>())
+		for (auto i : GetValueExprs<HLIL_CASE>())
 			params.push_back(subExprHandler(i));
 		return dest->Case(params, subExprHandler(GetTrueExpr<HLIL_CASE>()), *this);
 	case HLIL_BREAK:
@@ -1296,7 +1296,7 @@ ExprId HighLevelILInstruction::CopyTo(HighLevelILFunction* dest,
 		return dest->Assign(size, subExprHandler(GetDestExpr<HLIL_ASSIGN>()),
 			subExprHandler(GetSourceExpr<HLIL_ASSIGN>()), *this);
 	case HLIL_ASSIGN_UNPACK:
-		for (auto& i : GetDestExprs<HLIL_ASSIGN_UNPACK>())
+		for (auto i : GetDestExprs<HLIL_ASSIGN_UNPACK>())
 			output.push_back(subExprHandler(i));
 		return dest->AssignUnpack(output,
 			subExprHandler(GetSourceExpr<HLIL_ASSIGN_UNPACK>()), *this);
@@ -1305,7 +1305,7 @@ ExprId HighLevelILInstruction::CopyTo(HighLevelILFunction* dest,
 			GetDestMemoryVersion<HLIL_ASSIGN_MEM_SSA>(), subExprHandler(GetSourceExpr<HLIL_ASSIGN_MEM_SSA>()),
 			GetSourceMemoryVersion<HLIL_ASSIGN_MEM_SSA>(), *this);
 	case HLIL_ASSIGN_UNPACK_MEM_SSA:
-		for (auto& i : GetDestExprs<HLIL_ASSIGN_UNPACK_MEM_SSA>())
+		for (auto i : GetDestExprs<HLIL_ASSIGN_UNPACK_MEM_SSA>())
 			output.push_back(subExprHandler(i));
 		return dest->AssignUnpackMemSSA(output, GetDestMemoryVersion<HLIL_ASSIGN_UNPACK_MEM_SSA>(),
 			subExprHandler(GetSourceExpr<HLIL_ASSIGN_UNPACK_MEM_SSA>()),
@@ -1346,29 +1346,29 @@ ExprId HighLevelILInstruction::CopyTo(HighLevelILFunction* dest,
 	case HLIL_ADDRESS_OF:
 		return dest->AddressOf(subExprHandler(GetSourceExpr<HLIL_ADDRESS_OF>()), *this);
 	case HLIL_CALL:
-		for (auto& i : GetParameterExprs<HLIL_CALL>())
+		for (auto i : GetParameterExprs<HLIL_CALL>())
 			params.push_back(subExprHandler(i));
 		return dest->Call(subExprHandler(GetDestExpr<HLIL_CALL>()), params, *this);
 	case HLIL_SYSCALL:
-		for (auto& i : GetParameterExprs<HLIL_SYSCALL>())
+		for (auto i : GetParameterExprs<HLIL_SYSCALL>())
 			params.push_back(subExprHandler(i));
 		return dest->Syscall(params, *this);
 	case HLIL_TAILCALL:
-		for (auto& i : GetParameterExprs<HLIL_TAILCALL>())
+		for (auto i : GetParameterExprs<HLIL_TAILCALL>())
 			params.push_back(subExprHandler(i));
 		return dest->TailCall(subExprHandler(GetDestExpr<HLIL_TAILCALL>()), params, *this);
 	case HLIL_CALL_SSA:
-		for (auto& i : GetParameterExprs<HLIL_CALL_SSA>())
+		for (auto i : GetParameterExprs<HLIL_CALL_SSA>())
 			params.push_back(subExprHandler(i));
 		return dest->CallSSA(subExprHandler(GetDestExpr<HLIL_CALL_SSA>()), params,
 			GetDestMemoryVersion<HLIL_CALL_SSA>(), GetSourceMemoryVersion<HLIL_CALL_SSA>(), *this);
 	case HLIL_SYSCALL_SSA:
-		for (auto& i : GetParameterExprs<HLIL_SYSCALL_SSA>())
+		for (auto i : GetParameterExprs<HLIL_SYSCALL_SSA>())
 			params.push_back(subExprHandler(i));
 		return dest->SyscallSSA(params, GetDestMemoryVersion<HLIL_SYSCALL_SSA>(),
 			GetSourceMemoryVersion<HLIL_SYSCALL_SSA>(), *this);
 	case HLIL_RET:
-		for (auto& i : GetSourceExprs<HLIL_RET>())
+		for (auto i : GetSourceExprs<HLIL_RET>())
 			params.push_back(subExprHandler(i));
 		return dest->Return(params, *this);
 	case HLIL_NORET:
@@ -1463,11 +1463,11 @@ ExprId HighLevelILInstruction::CopyTo(HighLevelILFunction* dest,
 	case HLIL_TRAP:
 		return dest->Trap(GetVector<HLIL_TRAP>(), *this);
 	case HLIL_INTRINSIC:
-		for (auto& i : GetParameterExprs<HLIL_INTRINSIC>())
+		for (auto i : GetParameterExprs<HLIL_INTRINSIC>())
 			params.push_back(subExprHandler(i));
 		return dest->Intrinsic(GetIntrinsic<HLIL_INTRINSIC>(), params, *this);
 	case HLIL_INTRINSIC_SSA:
-		for (auto& i : GetParameterExprs<HLIL_INTRINSIC_SSA>())
+		for (auto i : GetParameterExprs<HLIL_INTRINSIC_SSA>())
 			params.push_back(subExprHandler(i));
 		return dest->IntrinsicSSA(GetIntrinsic<HLIL_INTRINSIC_SSA>(), params,
 			GetDestMemoryVersion<HLIL_INTRINSIC_SSA>(), GetSourceMemoryVersion<HLIL_INTRINSIC_SSA>(), *this);
diff --git a/lowlevelilinstruction.cpp b/lowlevelilinstruction.cpp
index 529f6840..782f5943 100644
--- a/lowlevelilinstruction.cpp
+++ b/lowlevelilinstruction.cpp
@@ -795,7 +795,7 @@ size_t LowLevelILIndexMap::operator[](uint64_t value) const
 LowLevelILIndexMap::operator map<uint64_t, size_t>() const
 {
 	map<uint64_t, size_t> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result[i.first] = i.second;
 	return result;
 }
@@ -907,7 +907,7 @@ const RegisterOrFlag LowLevelILRegisterOrFlagList::operator[](size_t i) const
 LowLevelILRegisterOrFlagList::operator vector<RegisterOrFlag>() const
 {
 	vector<RegisterOrFlag> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -965,7 +965,7 @@ const SSARegister LowLevelILSSARegisterList::operator[](size_t i) const
 LowLevelILSSARegisterList::operator vector<SSARegister>() const
 {
 	vector<SSARegister> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -1023,7 +1023,7 @@ const SSARegisterStack LowLevelILSSARegisterStackList::operator[](size_t i) cons
 LowLevelILSSARegisterStackList::operator vector<SSARegisterStack>() const
 {
 	vector<SSARegisterStack> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -1081,7 +1081,7 @@ const SSAFlag LowLevelILSSAFlagList::operator[](size_t i) const
 LowLevelILSSAFlagList::operator vector<SSAFlag>() const
 {
 	vector<SSAFlag> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -1139,7 +1139,7 @@ const SSARegisterOrFlag LowLevelILSSARegisterOrFlagList::operator[](size_t i) co
 LowLevelILSSARegisterOrFlagList::operator vector<SSARegisterOrFlag>() const
 {
 	vector<SSARegisterOrFlag> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -1400,7 +1400,7 @@ const LowLevelILOperand LowLevelILOperandList::operator[](size_t i) const
 LowLevelILOperandList::operator vector<LowLevelILOperand>() const
 {
 	vector<LowLevelILOperand> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -1898,16 +1898,16 @@ void LowLevelILInstruction::VisitExprs(const std::function<bool(const LowLevelIL
 		break;
 	case LLIL_CALL_SSA:
 		GetDestExpr<LLIL_CALL_SSA>().VisitExprs(func);
-		for (auto& i : GetParameterExprs<LLIL_CALL_SSA>())
+		for (auto i : GetParameterExprs<LLIL_CALL_SSA>())
 			i.VisitExprs(func);
 		break;
 	case LLIL_SYSCALL_SSA:
-		for (auto& i : GetParameterExprs<LLIL_SYSCALL_SSA>())
+		for (auto i : GetParameterExprs<LLIL_SYSCALL_SSA>())
 			i.VisitExprs(func);
 		break;
 	case LLIL_TAILCALL_SSA:
 		GetDestExpr<LLIL_TAILCALL_SSA>().VisitExprs(func);
-		for (auto& i : GetParameterExprs<LLIL_TAILCALL_SSA>())
+		for (auto i : GetParameterExprs<LLIL_TAILCALL_SSA>())
 			i.VisitExprs(func);
 		break;
 	case LLIL_RET:
@@ -1989,11 +1989,11 @@ void LowLevelILInstruction::VisitExprs(const std::function<bool(const LowLevelIL
 		AsTwoOperandWithCarry().GetCarryExpr().VisitExprs(func);
 		break;
 	case LLIL_INTRINSIC:
-		for (auto& i : GetParameterExprs<LLIL_INTRINSIC>())
+		for (auto i : GetParameterExprs<LLIL_INTRINSIC>())
 			i.VisitExprs(func);
 		break;
 	case LLIL_INTRINSIC_SSA:
-		for (auto& i : GetParameterExprs<LLIL_INTRINSIC_SSA>())
+		for (auto i : GetParameterExprs<LLIL_INTRINSIC_SSA>())
 			i.VisitExprs(func);
 		break;
 	default:
@@ -2166,19 +2166,19 @@ ExprId LowLevelILInstruction::CopyTo(LowLevelILFunction* dest,
 	case LLIL_TRAP:
 		return dest->Trap(GetVector<LLIL_TRAP>(), *this);
 	case LLIL_CALL_SSA:
-		for (auto& i : GetParameterExprs<LLIL_CALL_SSA>())
+		for (auto i : GetParameterExprs<LLIL_CALL_SSA>())
 			params.push_back(subExprHandler(i));
 		return dest->CallSSA(GetOutputSSARegisters<LLIL_CALL_SSA>(), subExprHandler(GetDestExpr<LLIL_CALL_SSA>()),
 			params, GetStackSSARegister<LLIL_CALL_SSA>(), GetDestMemoryVersion<LLIL_CALL_SSA>(),
 			GetSourceMemoryVersion<LLIL_CALL_SSA>(), *this);
 	case LLIL_SYSCALL_SSA:
-		for (auto& i : GetParameterExprs<LLIL_SYSCALL_SSA>())
+		for (auto i : GetParameterExprs<LLIL_SYSCALL_SSA>())
 			params.push_back(subExprHandler(i));
 		return dest->SystemCallSSA(GetOutputSSARegisters<LLIL_SYSCALL_SSA>(),
 			params, GetStackSSARegister<LLIL_SYSCALL_SSA>(), GetDestMemoryVersion<LLIL_SYSCALL_SSA>(),
 			GetSourceMemoryVersion<LLIL_SYSCALL_SSA>(), *this);
 	case LLIL_TAILCALL_SSA:
-		for (auto& i : GetParameterExprs<LLIL_TAILCALL_SSA>())
+		for (auto i : GetParameterExprs<LLIL_TAILCALL_SSA>())
 			params.push_back(subExprHandler(i));
 		return dest->TailCallSSA(GetOutputSSARegisters<LLIL_TAILCALL_SSA>(), subExprHandler(GetDestExpr<LLIL_TAILCALL_SSA>()),
 			params, GetStackSSARegister<LLIL_TAILCALL_SSA>(), GetDestMemoryVersion<LLIL_TAILCALL_SSA>(),
@@ -2283,12 +2283,12 @@ ExprId LowLevelILInstruction::CopyTo(LowLevelILFunction* dest,
 			subExprHandler(AsTwoOperandWithCarry().GetRightExpr()),
 			subExprHandler(AsTwoOperandWithCarry().GetCarryExpr()));
 	case LLIL_INTRINSIC:
-		for (auto& i : GetParameterExprs<LLIL_INTRINSIC>())
+		for (auto i : GetParameterExprs<LLIL_INTRINSIC>())
 			params.push_back(subExprHandler(i));
 		return dest->Intrinsic(GetOutputRegisterOrFlagList<LLIL_INTRINSIC>(), GetIntrinsic<LLIL_INTRINSIC>(),
 			params, flags, *this);
 	case LLIL_INTRINSIC_SSA:
-		for (auto& i : GetParameterExprs<LLIL_INTRINSIC_SSA>())
+		for (auto i : GetParameterExprs<LLIL_INTRINSIC_SSA>())
 			params.push_back(subExprHandler(i));
 		return dest->IntrinsicSSA(GetOutputSSARegisterOrFlagList<LLIL_INTRINSIC_SSA>(), GetIntrinsic<LLIL_INTRINSIC_SSA>(),
 			params, *this);
diff --git a/mediumlevelilinstruction.cpp b/mediumlevelilinstruction.cpp
index b535ef5a..f389fb52 100644
--- a/mediumlevelilinstruction.cpp
+++ b/mediumlevelilinstruction.cpp
@@ -550,7 +550,7 @@ size_t MediumLevelILIndexMap::operator[](uint64_t value) const
 MediumLevelILIndexMap::operator map<uint64_t, size_t>() const
 {
 	map<uint64_t, size_t> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result[i.first] = i.second;
 	return result;
 }
@@ -604,7 +604,7 @@ const Variable MediumLevelILVariableList::operator[](size_t i) const
 MediumLevelILVariableList::operator vector<Variable>() const
 {
 	vector<Variable> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -662,7 +662,7 @@ const SSAVariable MediumLevelILSSAVariableList::operator[](size_t i) const
 MediumLevelILSSAVariableList::operator vector<SSAVariable>() const
 {
 	vector<SSAVariable> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -720,7 +720,7 @@ const MediumLevelILInstruction MediumLevelILInstructionList::operator[](size_t i
 MediumLevelILInstructionList::operator vector<MediumLevelILInstruction>() const
 {
 	vector<MediumLevelILInstruction> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -891,7 +891,7 @@ const MediumLevelILOperand MediumLevelILOperandList::operator[](size_t i) const
 MediumLevelILOperandList::operator vector<MediumLevelILOperand>() const
 {
 	vector<MediumLevelILOperand> result;
-	for (auto& i : *this)
+	for (auto i : *this)
 		result.push_back(i);
 	return result;
 }
@@ -1333,7 +1333,7 @@ void MediumLevelILInstruction::VisitExprs(const std::function<bool(const MediumL
 		break;
 	case MLIL_CALL:
 		GetDestExpr<MLIL_CALL>().VisitExprs(func);
-		for (auto& i : GetParameterExprs<MLIL_CALL>())
+		for (auto i : GetParameterExprs<MLIL_CALL>())
 			i.VisitExprs(func);
 		break;
 	case MLIL_CALL_UNTYPED:
@@ -1341,23 +1341,23 @@ void MediumLevelILInstruction::VisitExprs(const std::function<bool(const MediumL
 		break;
 	case MLIL_CALL_SSA:
 		GetDestExpr<MLIL_CALL_SSA>().VisitExprs(func);
-		for (auto& i : GetParameterExprs<MLIL_CALL_SSA>())
+		for (auto i : GetParameterExprs<MLIL_CALL_SSA>())
 			i.VisitExprs(func);
 		break;
 	case MLIL_CALL_UNTYPED_SSA:
 		GetDestExpr<MLIL_CALL_UNTYPED_SSA>().VisitExprs(func);
 		break;
 	case MLIL_SYSCALL:
-		for (auto& i : GetParameterExprs<MLIL_SYSCALL>())
+		for (auto i : GetParameterExprs<MLIL_SYSCALL>())
 			i.VisitExprs(func);
 		break;
 	case MLIL_SYSCALL_SSA:
-		for (auto& i : GetParameterExprs<MLIL_SYSCALL_SSA>())
+		for (auto i : GetParameterExprs<MLIL_SYSCALL_SSA>())
 			i.VisitExprs(func);
 		break;
 	case MLIL_TAILCALL:
 		GetDestExpr<MLIL_TAILCALL>().VisitExprs(func);
-		for (auto& i : GetParameterExprs<MLIL_TAILCALL>())
+		for (auto i : GetParameterExprs<MLIL_TAILCALL>())
 			i.VisitExprs(func);
 		break;
 	case MLIL_TAILCALL_UNTYPED:
@@ -1365,14 +1365,14 @@ void MediumLevelILInstruction::VisitExprs(const std::function<bool(const MediumL
 		break;
 	case MLIL_TAILCALL_SSA:
 		GetDestExpr<MLIL_TAILCALL_SSA>().VisitExprs(func);
-		for (auto& i : GetParameterExprs<MLIL_TAILCALL_SSA>())
+		for (auto i : GetParameterExprs<MLIL_TAILCALL_SSA>())
 			i.VisitExprs(func);
 		break;
 	case MLIL_TAILCALL_UNTYPED_SSA:
 		GetDestExpr<MLIL_TAILCALL_UNTYPED_SSA>().VisitExprs(func);
 		break;
 	case MLIL_RET:
-		for (auto& i : GetSourceExprs<MLIL_RET>())
+		for (auto i : GetSourceExprs<MLIL_RET>())
 			i.VisitExprs(func);
 		break;
 	case MLIL_STORE:
@@ -1475,11 +1475,11 @@ void MediumLevelILInstruction::VisitExprs(const std::function<bool(const MediumL
 		AsTwoOperandWithCarry().GetCarryExpr().VisitExprs(func);
 		break;
 	case MLIL_INTRINSIC:
-		for (auto& i : GetParameterExprs<MLIL_INTRINSIC>())
+		for (auto i : GetParameterExprs<MLIL_INTRINSIC>())
 			i.VisitExprs(func);
 		break;
 	case MLIL_INTRINSIC_SSA:
-		for (auto& i : GetParameterExprs<MLIL_INTRINSIC_SSA>())
+		for (auto i : GetParameterExprs<MLIL_INTRINSIC_SSA>())
 			i.VisitExprs(func);
 		break;
 	default:
@@ -1569,7 +1569,7 @@ ExprId MediumLevelILInstruction::CopyTo(MediumLevelILFunction* dest,
 		return dest->AddressOfField(GetSourceVariable<MLIL_ADDRESS_OF_FIELD>(),
 			GetOffset<MLIL_ADDRESS_OF_FIELD>(), *this);
 	case MLIL_CALL:
-		for (auto& i : GetParameterExprs<MLIL_CALL>())
+		for (auto i : GetParameterExprs<MLIL_CALL>())
 			params.push_back(subExprHandler(i));
 		return dest->Call(GetOutputVariables<MLIL_CALL>(), subExprHandler(GetDestExpr<MLIL_CALL>()),
 			params, *this);
@@ -1578,7 +1578,7 @@ ExprId MediumLevelILInstruction::CopyTo(MediumLevelILFunction* dest,
 			subExprHandler(GetDestExpr<MLIL_CALL_UNTYPED>()), GetParameterVariables<MLIL_CALL_UNTYPED>(),
 			subExprHandler(GetStackExpr<MLIL_CALL_UNTYPED>()), *this);
 	case MLIL_CALL_SSA:
-		for (auto& i : GetParameterExprs<MLIL_CALL_SSA>())
+		for (auto i : GetParameterExprs<MLIL_CALL_SSA>())
 			params.push_back(subExprHandler(i));
 		return dest->CallSSA(GetOutputSSAVariables<MLIL_CALL_SSA>(), subExprHandler(GetDestExpr<MLIL_CALL_SSA>()),
 			params, GetDestMemoryVersion<MLIL_CALL_SSA>(), GetSourceMemoryVersion<MLIL_CALL_SSA>(), *this);
@@ -1590,7 +1590,7 @@ ExprId MediumLevelILInstruction::CopyTo(MediumLevelILFunction* dest,
 			GetSourceMemoryVersion<MLIL_CALL_UNTYPED_SSA>(),
 			subExprHandler(GetStackExpr<MLIL_CALL_UNTYPED_SSA>()), *this);
 	case MLIL_SYSCALL:
-		for (auto& i : GetParameterExprs<MLIL_SYSCALL>())
+		for (auto i : GetParameterExprs<MLIL_SYSCALL>())
 			params.push_back(subExprHandler(i));
 		return dest->Syscall(GetOutputVariables<MLIL_SYSCALL>(), params, *this);
 	case MLIL_SYSCALL_UNTYPED:
@@ -1598,7 +1598,7 @@ ExprId MediumLevelILInstruction::CopyTo(MediumLevelILFunction* dest,
 			GetParameterVariables<MLIL_SYSCALL_UNTYPED>(),
 			subExprHandler(GetStackExpr<MLIL_SYSCALL_UNTYPED>()), *this);
 	case MLIL_SYSCALL_SSA:
-		for (auto& i : GetParameterExprs<MLIL_SYSCALL_SSA>())
+		for (auto i : GetParameterExprs<MLIL_SYSCALL_SSA>())
 			params.push_back(subExprHandler(i));
 		return dest->SyscallSSA(GetOutputSSAVariables<MLIL_SYSCALL_SSA>(), params,
 			GetDestMemoryVersion<MLIL_SYSCALL_SSA>(), GetSourceMemoryVersion<MLIL_SYSCALL_SSA>(), *this);
@@ -1609,7 +1609,7 @@ ExprId MediumLevelILInstruction::CopyTo(MediumLevelILFunction* dest,
 			GetSourceMemoryVersion<MLIL_SYSCALL_UNTYPED_SSA>(),
 			subExprHandler(GetStackExpr<MLIL_SYSCALL_UNTYPED_SSA>()), *this);
 	case MLIL_TAILCALL:
-		for (auto& i : GetParameterExprs<MLIL_TAILCALL>())
+		for (auto i : GetParameterExprs<MLIL_TAILCALL>())
 			params.push_back(subExprHandler(i));
 		return dest->TailCall(GetOutputVariables<MLIL_TAILCALL>(), subExprHandler(GetDestExpr<MLIL_TAILCALL>()),
 			params, *this);
@@ -1618,7 +1618,7 @@ ExprId MediumLevelILInstruction::CopyTo(MediumLevelILFunction* dest,
 			subExprHandler(GetDestExpr<MLIL_TAILCALL_UNTYPED>()), GetParameterVariables<MLIL_TAILCALL_UNTYPED>(),
 			subExprHandler(GetStackExpr<MLIL_TAILCALL_UNTYPED>()), *this);
 	case MLIL_TAILCALL_SSA:
-		for (auto& i : GetParameterExprs<MLIL_TAILCALL_SSA>())
+		for (auto i : GetParameterExprs<MLIL_TAILCALL_SSA>())
 			params.push_back(subExprHandler(i));
 		return dest->TailCallSSA(GetOutputSSAVariables<MLIL_TAILCALL_SSA>(), subExprHandler(GetDestExpr<MLIL_TAILCALL_SSA>()),
 			params, GetDestMemoryVersion<MLIL_TAILCALL_SSA>(), GetSourceMemoryVersion<MLIL_TAILCALL_SSA>(), *this);
@@ -1630,7 +1630,7 @@ ExprId MediumLevelILInstruction::CopyTo(MediumLevelILFunction* dest,
 			GetSourceMemoryVersion<MLIL_TAILCALL_UNTYPED_SSA>(),
 			subExprHandler(GetStackExpr<MLIL_TAILCALL_UNTYPED_SSA>()), *this);
 	case MLIL_RET:
-		for (auto& i : GetSourceExprs<MLIL_RET>())
+		for (auto i : GetSourceExprs<MLIL_RET>())
 			params.push_back(subExprHandler(i));
 		return dest->Return(params, *this);
 	case MLIL_NORET:
@@ -1778,12 +1778,12 @@ ExprId MediumLevelILInstruction::CopyTo(MediumLevelILFunction* dest,
 	case MLIL_TRAP:
 		return dest->Trap(GetVector<MLIL_TRAP>(), *this);
 	case MLIL_INTRINSIC:
-		for (auto& i : GetParameterExprs<MLIL_INTRINSIC>())
+		for (auto i : GetParameterExprs<MLIL_INTRINSIC>())
 			params.push_back(subExprHandler(i));
 		return dest->Intrinsic(GetOutputVariables<MLIL_INTRINSIC>(),
 			GetIntrinsic<MLIL_INTRINSIC>(), params, *this);
 	case MLIL_INTRINSIC_SSA:
-		for (auto& i : GetParameterExprs<MLIL_INTRINSIC_SSA>())
+		for (auto i : GetParameterExprs<MLIL_INTRINSIC_SSA>())
 			params.push_back(subExprHandler(i));
 		return dest->IntrinsicSSA(GetOutputSSAVariables<MLIL_INTRINSIC_SSA>(),
 			GetIntrinsic<MLIL_INTRINSIC_SSA>(), params, *this);
-- 
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