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[TI removal] Remove `TerminatorInst` from the IR type system! 

llvm-svn: 344769
This commit is contained in:
Chandler Carruth 2018-10-19 00:22:37 +00:00
parent 608e6faa06
commit 509e20e029
3 changed files with 84 additions and 131 deletions
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28
llvm/include/llvm/IR/InstrTypes.h
View File

@ -45,34 +45,6 @@
namespace llvm {
//===----------------------------------------------------------------------===//
// TerminatorInst Class
//===----------------------------------------------------------------------===//
/// Subclasses of this class are all able to terminate a basic
/// block. Thus, these are all the flow control type of operations.
///
class TerminatorInst : public Instruction {
protected:
TerminatorInst(Type *Ty, Instruction::TermOps iType,
Use *Ops, unsigned NumOps,
Instruction *InsertBefore = nullptr)
: Instruction(Ty, iType, Ops, NumOps, InsertBefore) {}
TerminatorInst(Type *Ty, Instruction::TermOps iType,
Use *Ops, unsigned NumOps, BasicBlock *InsertAtEnd)
: Instruction(Ty, iType, Ops, NumOps, InsertAtEnd) {}
public:
// Methods for support type inquiry through isa, cast, and dyn_cast:
static bool classof(const Instruction *I) {
return I->isTerminator();
}
static bool classof(const Value *V) {
return isa<Instruction>(V) && classof(cast<Instruction>(V));
}
};
//===----------------------------------------------------------------------===//
// UnaryInstruction Class
//===----------------------------------------------------------------------===//

34
llvm/include/llvm/IR/Instructions.h
View File

@ -1357,8 +1357,6 @@ class InvokeInst;
template <class T> struct CallBaseParent { using type = Instruction; };
template <> struct CallBaseParent<InvokeInst> { using type = TerminatorInst; };
//===----------------------------------------------------------------------===//
/// Base class for all callable instructions (InvokeInst and CallInst)
/// Holds everything related to calling a function, abstracting from the base
@ -3265,7 +3263,7 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(LandingPadInst, Value)
/// Return a value (possibly void), from a function. Execution
/// does not continue in this function any longer.
///
class ReturnInst : public TerminatorInst {
class ReturnInst : public Instruction {
ReturnInst(const ReturnInst &RI);
private:
@ -3325,8 +3323,6 @@ public:
}
private:
friend TerminatorInst;
BasicBlock *getSuccessor(unsigned idx) const {
llvm_unreachable("ReturnInst has no successors!");
}
@ -3349,7 +3345,7 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ReturnInst, Value)
//===---------------------------------------------------------------------------
/// Conditional or Unconditional Branch instruction.
///
class BranchInst : public TerminatorInst {
class BranchInst : public Instruction {
/// Ops list - Branches are strange. The operands are ordered:
/// [Cond, FalseDest,] TrueDest. This makes some accessors faster because
/// they don't have to check for cond/uncond branchness. These are mostly
@ -3493,7 +3489,7 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(BranchInst, Value)
//===---------------------------------------------------------------------------
/// Multiway switch
///
class SwitchInst : public TerminatorInst {
class SwitchInst : public Instruction {
unsigned ReservedSpace;
// Operand[0] = Value to switch on
@ -3576,7 +3572,7 @@ public:
/// Returns number of current case.
unsigned getCaseIndex() const { return Index; }
/// Returns TerminatorInst's successor index for current case successor.
/// Returns successor index for current case successor.
unsigned getSuccessorIndex() const {
assert(((unsigned)Index == DefaultPseudoIndex ||
(unsigned)Index < SI->getNumCases()) &&
@ -3632,7 +3628,7 @@ public:
CaseIteratorImpl(SwitchInstT *SI, unsigned CaseNum) : Case(SI, CaseNum) {}
/// Initializes case iterator for given SwitchInst and for given
/// TerminatorInst's successor index.
/// successor index.
static CaseIteratorImpl fromSuccessorIndex(SwitchInstT *SI,
unsigned SuccessorIndex) {
assert(SuccessorIndex < SI->getNumSuccessors() &&
@ -3850,7 +3846,7 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(SwitchInst, Value)
//===---------------------------------------------------------------------------
/// Indirect Branch Instruction.
///
class IndirectBrInst : public TerminatorInst {
class IndirectBrInst : public Instruction {
unsigned ReservedSpace;
// Operand[0] = Address to jump to
@ -4226,7 +4222,7 @@ InvokeInst::InvokeInst(Value *Func, BasicBlock *IfNormal,
//===---------------------------------------------------------------------------
/// Resume the propagation of an exception.
///
class ResumeInst : public TerminatorInst {
class ResumeInst : public Instruction {
ResumeInst(const ResumeInst &RI);
explicit ResumeInst(Value *Exn, Instruction *InsertBefore=nullptr);
@ -4264,8 +4260,6 @@ public:
}
private:
friend TerminatorInst;
BasicBlock *getSuccessor(unsigned idx) const {
llvm_unreachable("ResumeInst has no successors!");
}
@ -4285,7 +4279,7 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ResumeInst, Value)
//===----------------------------------------------------------------------===//
// CatchSwitchInst Class
//===----------------------------------------------------------------------===//
class CatchSwitchInst : public TerminatorInst {
class CatchSwitchInst : public Instruction {
/// The number of operands actually allocated. NumOperands is
/// the number actually in use.
unsigned ReservedSpace;
@ -4551,7 +4545,7 @@ public:
// CatchReturnInst Class
//===----------------------------------------------------------------------===//
class CatchReturnInst : public TerminatorInst {
class CatchReturnInst : public Instruction {
CatchReturnInst(const CatchReturnInst &RI);
CatchReturnInst(Value *CatchPad, BasicBlock *BB, Instruction *InsertBefore);
CatchReturnInst(Value *CatchPad, BasicBlock *BB, BasicBlock *InsertAtEnd);
@ -4611,8 +4605,6 @@ public:
}
private:
friend TerminatorInst;
BasicBlock *getSuccessor(unsigned Idx) const {
assert(Idx < getNumSuccessors() && "Successor # out of range for catchret!");
return getSuccessor();
@ -4634,7 +4626,7 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(CatchReturnInst, Value)
// CleanupReturnInst Class
//===----------------------------------------------------------------------===//
class CleanupReturnInst : public TerminatorInst {
class CleanupReturnInst : public Instruction {
private:
CleanupReturnInst(const CleanupReturnInst &RI);
CleanupReturnInst(Value *CleanupPad, BasicBlock *UnwindBB, unsigned Values,
@ -4707,8 +4699,6 @@ public:
}
private:
friend TerminatorInst;
BasicBlock *getSuccessor(unsigned Idx) const {
assert(Idx == 0);
return getUnwindDest();
@ -4741,7 +4731,7 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(CleanupReturnInst, Value)
/// presence of this instruction indicates some higher level knowledge that the
/// end of the block cannot be reached.
///
class UnreachableInst : public TerminatorInst {
class UnreachableInst : public Instruction {
protected:
// Note: Instruction needs to be a friend here to call cloneImpl.
friend class Instruction;
@ -4768,8 +4758,6 @@ public:
}
private:
friend TerminatorInst;
BasicBlock *getSuccessor(unsigned idx) const {
llvm_unreachable("UnreachableInst has no successors!");
}

153
llvm/lib/IR/Instructions.cpp
View File

@ -622,55 +622,53 @@ LandingPadInst *InvokeInst::getLandingPadInst() const {
//===----------------------------------------------------------------------===//
ReturnInst::ReturnInst(const ReturnInst &RI)
: TerminatorInst(Type::getVoidTy(RI.getContext()), Instruction::Ret,
OperandTraits<ReturnInst>::op_end(this) -
RI.getNumOperands(),
RI.getNumOperands()) {
: Instruction(Type::getVoidTy(RI.getContext()), Instruction::Ret,
OperandTraits<ReturnInst>::op_end(this) - RI.getNumOperands(),
RI.getNumOperands()) {
if (RI.getNumOperands())
Op<0>() = RI.Op<0>();
SubclassOptionalData = RI.SubclassOptionalData;
}
ReturnInst::ReturnInst(LLVMContext &C, Value *retVal, Instruction *InsertBefore)
: TerminatorInst(Type::getVoidTy(C), Instruction::Ret,
OperandTraits<ReturnInst>::op_end(this) - !!retVal, !!retVal,
InsertBefore) {
: Instruction(Type::getVoidTy(C), Instruction::Ret,
OperandTraits<ReturnInst>::op_end(this) - !!retVal, !!retVal,
InsertBefore) {
if (retVal)
Op<0>() = retVal;
}
ReturnInst::ReturnInst(LLVMContext &C, Value *retVal, BasicBlock *InsertAtEnd)
: TerminatorInst(Type::getVoidTy(C), Instruction::Ret,
OperandTraits<ReturnInst>::op_end(this) - !!retVal, !!retVal,
InsertAtEnd) {
: Instruction(Type::getVoidTy(C), Instruction::Ret,
OperandTraits<ReturnInst>::op_end(this) - !!retVal, !!retVal,
InsertAtEnd) {
if (retVal)
Op<0>() = retVal;
}
ReturnInst::ReturnInst(LLVMContext &Context, BasicBlock *InsertAtEnd)
: TerminatorInst(Type::getVoidTy(Context), Instruction::Ret,
OperandTraits<ReturnInst>::op_end(this), 0, InsertAtEnd) {
}
: Instruction(Type::getVoidTy(Context), Instruction::Ret,
OperandTraits<ReturnInst>::op_end(this), 0, InsertAtEnd) {}
//===----------------------------------------------------------------------===//
// ResumeInst Implementation
//===----------------------------------------------------------------------===//
ResumeInst::ResumeInst(const ResumeInst &RI)
: TerminatorInst(Type::getVoidTy(RI.getContext()), Instruction::Resume,
OperandTraits<ResumeInst>::op_begin(this), 1) {
: Instruction(Type::getVoidTy(RI.getContext()), Instruction::Resume,
OperandTraits<ResumeInst>::op_begin(this), 1) {
Op<0>() = RI.Op<0>();
}
ResumeInst::ResumeInst(Value *Exn, Instruction *InsertBefore)
: TerminatorInst(Type::getVoidTy(Exn->getContext()), Instruction::Resume,
OperandTraits<ResumeInst>::op_begin(this), 1, InsertBefore) {
: Instruction(Type::getVoidTy(Exn->getContext()), Instruction::Resume,
OperandTraits<ResumeInst>::op_begin(this), 1, InsertBefore) {
Op<0>() = Exn;
}
ResumeInst::ResumeInst(Value *Exn, BasicBlock *InsertAtEnd)
: TerminatorInst(Type::getVoidTy(Exn->getContext()), Instruction::Resume,
OperandTraits<ResumeInst>::op_begin(this), 1, InsertAtEnd) {
: Instruction(Type::getVoidTy(Exn->getContext()), Instruction::Resume,
OperandTraits<ResumeInst>::op_begin(this), 1, InsertAtEnd) {
Op<0>() = Exn;
}
@ -679,10 +677,10 @@ ResumeInst::ResumeInst(Value *Exn, BasicBlock *InsertAtEnd)
//===----------------------------------------------------------------------===//
CleanupReturnInst::CleanupReturnInst(const CleanupReturnInst &CRI)
: TerminatorInst(CRI.getType(), Instruction::CleanupRet,
OperandTraits<CleanupReturnInst>::op_end(this) -
CRI.getNumOperands(),
CRI.getNumOperands()) {
: Instruction(CRI.getType(), Instruction::CleanupRet,
OperandTraits<CleanupReturnInst>::op_end(this) -
CRI.getNumOperands(),
CRI.getNumOperands()) {
setInstructionSubclassData(CRI.getSubclassDataFromInstruction());
Op<0>() = CRI.Op<0>();
if (CRI.hasUnwindDest())
@ -700,19 +698,19 @@ void CleanupReturnInst::init(Value *CleanupPad, BasicBlock *UnwindBB) {
CleanupReturnInst::CleanupReturnInst(Value *CleanupPad, BasicBlock *UnwindBB,
unsigned Values, Instruction *InsertBefore)
: TerminatorInst(Type::getVoidTy(CleanupPad->getContext()),
Instruction::CleanupRet,
OperandTraits<CleanupReturnInst>::op_end(this) - Values,
Values, InsertBefore) {
: Instruction(Type::getVoidTy(CleanupPad->getContext()),
Instruction::CleanupRet,
OperandTraits<CleanupReturnInst>::op_end(this) - Values,
Values, InsertBefore) {
init(CleanupPad, UnwindBB);
}
CleanupReturnInst::CleanupReturnInst(Value *CleanupPad, BasicBlock *UnwindBB,
unsigned Values, BasicBlock *InsertAtEnd)
: TerminatorInst(Type::getVoidTy(CleanupPad->getContext()),
Instruction::CleanupRet,
OperandTraits<CleanupReturnInst>::op_end(this) - Values,
Values, InsertAtEnd) {
: Instruction(Type::getVoidTy(CleanupPad->getContext()),
Instruction::CleanupRet,
OperandTraits<CleanupReturnInst>::op_end(this) - Values,
Values, InsertAtEnd) {
init(CleanupPad, UnwindBB);
}
@ -725,25 +723,25 @@ void CatchReturnInst::init(Value *CatchPad, BasicBlock *BB) {
}
CatchReturnInst::CatchReturnInst(const CatchReturnInst &CRI)
: TerminatorInst(Type::getVoidTy(CRI.getContext()), Instruction::CatchRet,
OperandTraits<CatchReturnInst>::op_begin(this), 2) {
: Instruction(Type::getVoidTy(CRI.getContext()), Instruction::CatchRet,
OperandTraits<CatchReturnInst>::op_begin(this), 2) {
Op<0>() = CRI.Op<0>();
Op<1>() = CRI.Op<1>();
}
CatchReturnInst::CatchReturnInst(Value *CatchPad, BasicBlock *BB,
Instruction *InsertBefore)
: TerminatorInst(Type::getVoidTy(BB->getContext()), Instruction::CatchRet,
OperandTraits<CatchReturnInst>::op_begin(this), 2,
InsertBefore) {
: Instruction(Type::getVoidTy(BB->getContext()), Instruction::CatchRet,
OperandTraits<CatchReturnInst>::op_begin(this), 2,
InsertBefore) {
init(CatchPad, BB);
}
CatchReturnInst::CatchReturnInst(Value *CatchPad, BasicBlock *BB,
BasicBlock *InsertAtEnd)
: TerminatorInst(Type::getVoidTy(BB->getContext()), Instruction::CatchRet,
OperandTraits<CatchReturnInst>::op_begin(this), 2,
InsertAtEnd) {
: Instruction(Type::getVoidTy(BB->getContext()), Instruction::CatchRet,
OperandTraits<CatchReturnInst>::op_begin(this), 2,
InsertAtEnd) {
init(CatchPad, BB);
}
@ -755,8 +753,8 @@ CatchSwitchInst::CatchSwitchInst(Value *ParentPad, BasicBlock *UnwindDest,
unsigned NumReservedValues,
const Twine &NameStr,
Instruction *InsertBefore)
: TerminatorInst(ParentPad->getType(), Instruction::CatchSwitch, nullptr, 0,
InsertBefore) {
: Instruction(ParentPad->getType(), Instruction::CatchSwitch, nullptr, 0,
InsertBefore) {
if (UnwindDest)
++NumReservedValues;
init(ParentPad, UnwindDest, NumReservedValues + 1);
@ -766,8 +764,8 @@ CatchSwitchInst::CatchSwitchInst(Value *ParentPad, BasicBlock *UnwindDest,
CatchSwitchInst::CatchSwitchInst(Value *ParentPad, BasicBlock *UnwindDest,
unsigned NumReservedValues,
const Twine &NameStr, BasicBlock *InsertAtEnd)
: TerminatorInst(ParentPad->getType(), Instruction::CatchSwitch, nullptr, 0,
InsertAtEnd) {
: Instruction(ParentPad->getType(), Instruction::CatchSwitch, nullptr, 0,
InsertAtEnd) {
if (UnwindDest)
++NumReservedValues;
init(ParentPad, UnwindDest, NumReservedValues + 1);
@ -775,8 +773,8 @@ CatchSwitchInst::CatchSwitchInst(Value *ParentPad, BasicBlock *UnwindDest,
}
CatchSwitchInst::CatchSwitchInst(const CatchSwitchInst &CSI)
: TerminatorInst(CSI.getType(), Instruction::CatchSwitch, nullptr,
CSI.getNumOperands()) {
: Instruction(CSI.getType(), Instruction::CatchSwitch, nullptr,
CSI.getNumOperands()) {
init(CSI.getParentPad(), CSI.getUnwindDest(), CSI.getNumOperands());
setNumHungOffUseOperands(ReservedSpace);
Use *OL = getOperandList();
@ -874,13 +872,11 @@ FuncletPadInst::FuncletPadInst(Instruction::FuncletPadOps Op, Value *ParentPad,
UnreachableInst::UnreachableInst(LLVMContext &Context,
Instruction *InsertBefore)
: TerminatorInst(Type::getVoidTy(Context), Instruction::Unreachable,
nullptr, 0, InsertBefore) {
}
: Instruction(Type::getVoidTy(Context), Instruction::Unreachable, nullptr,
0, InsertBefore) {}
UnreachableInst::UnreachableInst(LLVMContext &Context, BasicBlock *InsertAtEnd)
: TerminatorInst(Type::getVoidTy(Context), Instruction::Unreachable,
nullptr, 0, InsertAtEnd) {
}
: Instruction(Type::getVoidTy(Context), Instruction::Unreachable, nullptr,
0, InsertAtEnd) {}
//===----------------------------------------------------------------------===//
// BranchInst Implementation
@ -893,18 +889,18 @@ void BranchInst::AssertOK() {
}
BranchInst::BranchInst(BasicBlock *IfTrue, Instruction *InsertBefore)
: TerminatorInst(Type::getVoidTy(IfTrue->getContext()), Instruction::Br,
OperandTraits<BranchInst>::op_end(this) - 1,
1, InsertBefore) {
: Instruction(Type::getVoidTy(IfTrue->getContext()), Instruction::Br,
OperandTraits<BranchInst>::op_end(this) - 1, 1,
InsertBefore) {
assert(IfTrue && "Branch destination may not be null!");
Op<-1>() = IfTrue;
}
BranchInst::BranchInst(BasicBlock *IfTrue, BasicBlock *IfFalse, Value *Cond,
Instruction *InsertBefore)
: TerminatorInst(Type::getVoidTy(IfTrue->getContext()), Instruction::Br,
OperandTraits<BranchInst>::op_end(this) - 3,
3, InsertBefore) {
: Instruction(Type::getVoidTy(IfTrue->getContext()), Instruction::Br,
OperandTraits<BranchInst>::op_end(this) - 3, 3,
InsertBefore) {
Op<-1>() = IfTrue;
Op<-2>() = IfFalse;
Op<-3>() = Cond;
@ -914,18 +910,16 @@ BranchInst::BranchInst(BasicBlock *IfTrue, BasicBlock *IfFalse, Value *Cond,
}
BranchInst::BranchInst(BasicBlock *IfTrue, BasicBlock *InsertAtEnd)
: TerminatorInst(Type::getVoidTy(IfTrue->getContext()), Instruction::Br,
OperandTraits<BranchInst>::op_end(this) - 1,
1, InsertAtEnd) {
: Instruction(Type::getVoidTy(IfTrue->getContext()), Instruction::Br,
OperandTraits<BranchInst>::op_end(this) - 1, 1, InsertAtEnd) {
assert(IfTrue && "Branch destination may not be null!");
Op<-1>() = IfTrue;
}
BranchInst::BranchInst(BasicBlock *IfTrue, BasicBlock *IfFalse, Value *Cond,
BasicBlock *InsertAtEnd)
: TerminatorInst(Type::getVoidTy(IfTrue->getContext()), Instruction::Br,
OperandTraits<BranchInst>::op_end(this) - 3,
3, InsertAtEnd) {
BasicBlock *InsertAtEnd)
: Instruction(Type::getVoidTy(IfTrue->getContext()), Instruction::Br,
OperandTraits<BranchInst>::op_end(this) - 3, 3, InsertAtEnd) {
Op<-1>() = IfTrue;
Op<-2>() = IfFalse;
Op<-3>() = Cond;
@ -934,10 +928,10 @@ BranchInst::BranchInst(BasicBlock *IfTrue, BasicBlock *IfFalse, Value *Cond,
#endif
}
BranchInst::BranchInst(const BranchInst &BI) :
TerminatorInst(Type::getVoidTy(BI.getContext()), Instruction::Br,
OperandTraits<BranchInst>::op_end(this) - BI.getNumOperands(),
BI.getNumOperands()) {
BranchInst::BranchInst(const BranchInst &BI)
: Instruction(Type::getVoidTy(BI.getContext()), Instruction::Br,
OperandTraits<BranchInst>::op_end(this) - BI.getNumOperands(),
BI.getNumOperands()) {
Op<-1>() = BI.Op<-1>();
if (BI.getNumOperands() != 1) {
assert(BI.getNumOperands() == 3 && "BR can have 1 or 3 operands!");
@ -3567,8 +3561,8 @@ void SwitchInst::init(Value *Value, BasicBlock *Default, unsigned NumReserved) {
/// constructor can also autoinsert before another instruction.
SwitchInst::SwitchInst(Value *Value, BasicBlock *Default, unsigned NumCases,
Instruction *InsertBefore)
: TerminatorInst(Type::getVoidTy(Value->getContext()), Instruction::Switch,
nullptr, 0, InsertBefore) {
: Instruction(Type::getVoidTy(Value->getContext()), Instruction::Switch,
nullptr, 0, InsertBefore) {
init(Value, Default, 2+NumCases*2);
}
@ -3578,13 +3572,13 @@ SwitchInst::SwitchInst(Value *Value, BasicBlock *Default, unsigned NumCases,
/// constructor also autoinserts at the end of the specified BasicBlock.
SwitchInst::SwitchInst(Value *Value, BasicBlock *Default, unsigned NumCases,
BasicBlock *InsertAtEnd)
: TerminatorInst(Type::getVoidTy(Value->getContext()), Instruction::Switch,
nullptr, 0, InsertAtEnd) {
: Instruction(Type::getVoidTy(Value->getContext()), Instruction::Switch,
nullptr, 0, InsertAtEnd) {
init(Value, Default, 2+NumCases*2);
}
SwitchInst::SwitchInst(const SwitchInst &SI)
: TerminatorInst(SI.getType(), Instruction::Switch, nullptr, 0) {
: Instruction(SI.getType(), Instruction::Switch, nullptr, 0) {
init(SI.getCondition(), SI.getDefaultDest(), SI.getNumOperands());
setNumHungOffUseOperands(SI.getNumOperands());
Use *OL = getOperandList();
@ -3596,7 +3590,6 @@ SwitchInst::SwitchInst(const SwitchInst &SI)
SubclassOptionalData = SI.SubclassOptionalData;
}
/// addCase - Add an entry to the switch instruction...
///
void SwitchInst::addCase(ConstantInt *OnVal, BasicBlock *Dest) {
@ -3675,21 +3668,21 @@ void IndirectBrInst::growOperands() {
IndirectBrInst::IndirectBrInst(Value *Address, unsigned NumCases,
Instruction *InsertBefore)
: TerminatorInst(Type::getVoidTy(Address->getContext()),Instruction::IndirectBr,
nullptr, 0, InsertBefore) {
: Instruction(Type::getVoidTy(Address->getContext()),
Instruction::IndirectBr, nullptr, 0, InsertBefore) {
init(Address, NumCases);
}
IndirectBrInst::IndirectBrInst(Value *Address, unsigned NumCases,
BasicBlock *InsertAtEnd)
: TerminatorInst(Type::getVoidTy(Address->getContext()),Instruction::IndirectBr,
nullptr, 0, InsertAtEnd) {
: Instruction(Type::getVoidTy(Address->getContext()),
Instruction::IndirectBr, nullptr, 0, InsertAtEnd) {
init(Address, NumCases);
}
IndirectBrInst::IndirectBrInst(const IndirectBrInst &IBI)
: TerminatorInst(Type::getVoidTy(IBI.getContext()), Instruction::IndirectBr,
nullptr, IBI.getNumOperands()) {
: Instruction(Type::getVoidTy(IBI.getContext()), Instruction::IndirectBr,
nullptr, IBI.getNumOperands()) {
allocHungoffUses(IBI.getNumOperands());
Use *OL = getOperandList();
const Use *InOL = IBI.getOperandList();