#include "llvm/CallingConv.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallVector.h"
+#include "llvm/Support/ErrorHandling.h"
#include <iterator>
namespace llvm {
class APInt;
class LLVMContext;
+enum AtomicOrdering {
+ NotAtomic = 0,
+ Unordered = 1,
+ Monotonic = 2,
+ // Consume = 3, // Not specified yet.
+ Acquire = 4,
+ Release = 5,
+ AcquireRelease = 6,
+ SequentiallyConsistent = 7
+};
+
+enum SynchronizationScope {
+ SingleThread = 0,
+ CrossThread = 1
+};
+
//===----------------------------------------------------------------------===//
// AllocaInst Class
//===----------------------------------------------------------------------===//
LoadInst(Value *Ptr, const Twine &NameStr, BasicBlock *InsertAtEnd);
LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile = false,
Instruction *InsertBefore = 0);
- LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile,
- unsigned Align, Instruction *InsertBefore = 0);
LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile,
BasicBlock *InsertAtEnd);
+ LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile,
+ unsigned Align, Instruction *InsertBefore = 0);
LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile,
unsigned Align, BasicBlock *InsertAtEnd);
+ LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile,
+ unsigned Align, AtomicOrdering Order,
+ SynchronizationScope SynchScope = CrossThread,
+ Instruction *InsertBefore = 0);
+ LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile,
+ unsigned Align, AtomicOrdering Order,
+ SynchronizationScope SynchScope,
+ BasicBlock *InsertAtEnd);
LoadInst(Value *Ptr, const char *NameStr, Instruction *InsertBefore);
LoadInst(Value *Ptr, const char *NameStr, BasicBlock *InsertAtEnd);
/// getAlignment - Return the alignment of the access that is being performed
///
unsigned getAlignment() const {
- return (1 << (getSubclassDataFromInstruction() >> 1)) >> 1;
+ return (1 << ((getSubclassDataFromInstruction() >> 1) & 31)) >> 1;
}
void setAlignment(unsigned Align);
+ /// Returns the ordering effect of this fence.
+ AtomicOrdering getOrdering() const {
+ return AtomicOrdering((getSubclassDataFromInstruction() >> 7) & 7);
+ }
+
+ /// Set the ordering constraint on this load. May not be Release or
+ /// AcquireRelease.
+ void setOrdering(AtomicOrdering Ordering) {
+ setInstructionSubclassData((getSubclassDataFromInstruction() & ~(7 << 7)) |
+ (Ordering << 7));
+ }
+
+ SynchronizationScope getSynchScope() const {
+ return SynchronizationScope((getSubclassDataFromInstruction() >> 6) & 1);
+ }
+
+ /// Specify whether this load is ordered with respect to all
+ /// concurrently executing threads, or only with respect to signal handlers
+ /// executing in the same thread.
+ void setSynchScope(SynchronizationScope xthread) {
+ setInstructionSubclassData((getSubclassDataFromInstruction() & ~(1 << 6)) |
+ (xthread << 6));
+ }
+
+ bool isAtomic() const { return getOrdering() != NotAtomic; }
+ void setAtomic(AtomicOrdering Ordering,
+ SynchronizationScope SynchScope = CrossThread) {
+ setOrdering(Ordering);
+ setSynchScope(SynchScope);
+ }
+
+ bool isSimple() const { return !isAtomic() && !isVolatile(); }
+ bool isUnordered() const {
+ return getOrdering() <= Unordered && !isVolatile();
+ }
+
Value *getPointerOperand() { return getOperand(0); }
const Value *getPointerOperand() const { return getOperand(0); }
static unsigned getPointerOperandIndex() { return 0U; }
StoreInst(Value *Val, Value *Ptr, BasicBlock *InsertAtEnd);
StoreInst(Value *Val, Value *Ptr, bool isVolatile = false,
Instruction *InsertBefore = 0);
+ StoreInst(Value *Val, Value *Ptr, bool isVolatile, BasicBlock *InsertAtEnd);
StoreInst(Value *Val, Value *Ptr, bool isVolatile,
unsigned Align, Instruction *InsertBefore = 0);
- StoreInst(Value *Val, Value *Ptr, bool isVolatile, BasicBlock *InsertAtEnd);
StoreInst(Value *Val, Value *Ptr, bool isVolatile,
unsigned Align, BasicBlock *InsertAtEnd);
+ StoreInst(Value *Val, Value *Ptr, bool isVolatile,
+ unsigned Align, AtomicOrdering Order,
+ SynchronizationScope SynchScope = CrossThread,
+ Instruction *InsertBefore = 0);
+ StoreInst(Value *Val, Value *Ptr, bool isVolatile,
+ unsigned Align, AtomicOrdering Order,
+ SynchronizationScope SynchScope,
+ BasicBlock *InsertAtEnd);
+
-
- /// isVolatile - Return true if this is a load from a volatile memory
+ /// isVolatile - Return true if this is a store to a volatile memory
/// location.
///
bool isVolatile() const { return getSubclassDataFromInstruction() & 1; }
- /// setVolatile - Specify whether this is a volatile load or not.
+ /// setVolatile - Specify whether this is a volatile store or not.
///
void setVolatile(bool V) {
setInstructionSubclassData((getSubclassDataFromInstruction() & ~1) |
/// getAlignment - Return the alignment of the access that is being performed
///
unsigned getAlignment() const {
- return (1 << (getSubclassDataFromInstruction() >> 1)) >> 1;
+ return (1 << ((getSubclassDataFromInstruction() >> 1) & 31)) >> 1;
}
void setAlignment(unsigned Align);
+ /// Returns the ordering effect of this store.
+ AtomicOrdering getOrdering() const {
+ return AtomicOrdering((getSubclassDataFromInstruction() >> 7) & 7);
+ }
+
+ /// Set the ordering constraint on this store. May not be Acquire or
+ /// AcquireRelease.
+ void setOrdering(AtomicOrdering Ordering) {
+ setInstructionSubclassData((getSubclassDataFromInstruction() & ~(7 << 7)) |
+ (Ordering << 7));
+ }
+
+ SynchronizationScope getSynchScope() const {
+ return SynchronizationScope((getSubclassDataFromInstruction() >> 6) & 1);
+ }
+
+ /// Specify whether this store instruction is ordered with respect to all
+ /// concurrently executing threads, or only with respect to signal handlers
+ /// executing in the same thread.
+ void setSynchScope(SynchronizationScope xthread) {
+ setInstructionSubclassData((getSubclassDataFromInstruction() & ~(1 << 6)) |
+ (xthread << 6));
+ }
+
+ bool isAtomic() const { return getOrdering() != NotAtomic; }
+ void setAtomic(AtomicOrdering Ordering,
+ SynchronizationScope SynchScope = CrossThread) {
+ setOrdering(Ordering);
+ setSynchScope(SynchScope);
+ }
+
+ bool isSimple() const { return !isAtomic() && !isVolatile(); }
+ bool isUnordered() const {
+ return getOrdering() <= Unordered && !isVolatile();
+ }
+
Value *getValueOperand() { return getOperand(0); }
const Value *getValueOperand() const { return getOperand(0); }
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(StoreInst, Value)
+//===----------------------------------------------------------------------===//
+// FenceInst Class
+//===----------------------------------------------------------------------===//
+
+/// FenceInst - an instruction for ordering other memory operations
+///
+class FenceInst : public Instruction {
+ void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
+ void Init(AtomicOrdering Ordering, SynchronizationScope SynchScope);
+protected:
+ virtual FenceInst *clone_impl() const;
+public:
+ // allocate space for exactly zero operands
+ void *operator new(size_t s) {
+ return User::operator new(s, 0);
+ }
+
+ // Ordering may only be Acquire, Release, AcquireRelease, or
+ // SequentiallyConsistent.
+ FenceInst(LLVMContext &C, AtomicOrdering Ordering,
+ SynchronizationScope SynchScope = CrossThread,
+ Instruction *InsertBefore = 0);
+ FenceInst(LLVMContext &C, AtomicOrdering Ordering,
+ SynchronizationScope SynchScope,
+ BasicBlock *InsertAtEnd);
+
+ /// Returns the ordering effect of this fence.
+ AtomicOrdering getOrdering() const {
+ return AtomicOrdering(getSubclassDataFromInstruction() >> 1);
+ }
+
+ /// Set the ordering constraint on this fence. May only be Acquire, Release,
+ /// AcquireRelease, or SequentiallyConsistent.
+ void setOrdering(AtomicOrdering Ordering) {
+ setInstructionSubclassData((getSubclassDataFromInstruction() & 1) |
+ (Ordering << 1));
+ }
+
+ SynchronizationScope getSynchScope() const {
+ return SynchronizationScope(getSubclassDataFromInstruction() & 1);
+ }
+
+ /// Specify whether this fence orders other operations with respect to all
+ /// concurrently executing threads, or only with respect to signal handlers
+ /// executing in the same thread.
+ void setSynchScope(SynchronizationScope xthread) {
+ setInstructionSubclassData((getSubclassDataFromInstruction() & ~1) |
+ xthread);
+ }
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const FenceInst *) { return true; }
+ static inline bool classof(const Instruction *I) {
+ return I->getOpcode() == Instruction::Fence;
+ }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
+ }
+private:
+ // Shadow Instruction::setInstructionSubclassData with a private forwarding
+ // method so that subclasses cannot accidentally use it.
+ void setInstructionSubclassData(unsigned short D) {
+ Instruction::setInstructionSubclassData(D);
+ }
+};
+
+//===----------------------------------------------------------------------===//
+// AtomicCmpXchgInst Class
+//===----------------------------------------------------------------------===//
+
+/// AtomicCmpXchgInst - an instruction that atomically checks whether a
+/// specified value is in a memory location, and, if it is, stores a new value
+/// there. Returns the value that was loaded.
+///
+class AtomicCmpXchgInst : public Instruction {
+ void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
+ void Init(Value *Ptr, Value *Cmp, Value *NewVal,
+ AtomicOrdering Ordering, SynchronizationScope SynchScope);
+protected:
+ virtual AtomicCmpXchgInst *clone_impl() const;
+public:
+ // allocate space for exactly three operands
+ void *operator new(size_t s) {
+ return User::operator new(s, 3);
+ }
+ AtomicCmpXchgInst(Value *Ptr, Value *Cmp, Value *NewVal,
+ AtomicOrdering Ordering, SynchronizationScope SynchScope,
+ Instruction *InsertBefore = 0);
+ AtomicCmpXchgInst(Value *Ptr, Value *Cmp, Value *NewVal,
+ AtomicOrdering Ordering, SynchronizationScope SynchScope,
+ BasicBlock *InsertAtEnd);
+
+ /// isVolatile - Return true if this is a cmpxchg from a volatile memory
+ /// location.
+ ///
+ bool isVolatile() const {
+ return getSubclassDataFromInstruction() & 1;
+ }
+
+ /// setVolatile - Specify whether this is a volatile cmpxchg.
+ ///
+ void setVolatile(bool V) {
+ setInstructionSubclassData((getSubclassDataFromInstruction() & ~1) |
+ (unsigned)V);
+ }
+
+ /// Transparently provide more efficient getOperand methods.
+ DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
+
+ /// Set the ordering constraint on this cmpxchg.
+ void setOrdering(AtomicOrdering Ordering) {
+ assert(Ordering != NotAtomic &&
+ "CmpXchg instructions can only be atomic.");
+ setInstructionSubclassData((getSubclassDataFromInstruction() & 3) |
+ (Ordering << 2));
+ }
+
+ /// Specify whether this cmpxchg is atomic and orders other operations with
+ /// respect to all concurrently executing threads, or only with respect to
+ /// signal handlers executing in the same thread.
+ void setSynchScope(SynchronizationScope SynchScope) {
+ setInstructionSubclassData((getSubclassDataFromInstruction() & ~2) |
+ (SynchScope << 1));
+ }
+
+ /// Returns the ordering constraint on this cmpxchg.
+ AtomicOrdering getOrdering() const {
+ return AtomicOrdering(getSubclassDataFromInstruction() >> 2);
+ }
+
+ /// Returns whether this cmpxchg is atomic between threads or only within a
+ /// single thread.
+ SynchronizationScope getSynchScope() const {
+ return SynchronizationScope((getSubclassDataFromInstruction() & 2) >> 1);
+ }
+
+ Value *getPointerOperand() { return getOperand(0); }
+ const Value *getPointerOperand() const { return getOperand(0); }
+ static unsigned getPointerOperandIndex() { return 0U; }
+
+ Value *getCompareOperand() { return getOperand(1); }
+ const Value *getCompareOperand() const { return getOperand(1); }
+
+ Value *getNewValOperand() { return getOperand(2); }
+ const Value *getNewValOperand() const { return getOperand(2); }
+
+ unsigned getPointerAddressSpace() const {
+ return cast<PointerType>(getPointerOperand()->getType())->getAddressSpace();
+ }
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const AtomicCmpXchgInst *) { return true; }
+ static inline bool classof(const Instruction *I) {
+ return I->getOpcode() == Instruction::AtomicCmpXchg;
+ }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
+ }
+private:
+ // Shadow Instruction::setInstructionSubclassData with a private forwarding
+ // method so that subclasses cannot accidentally use it.
+ void setInstructionSubclassData(unsigned short D) {
+ Instruction::setInstructionSubclassData(D);
+ }
+};
+
+template <>
+struct OperandTraits<AtomicCmpXchgInst> :
+ public FixedNumOperandTraits<AtomicCmpXchgInst, 3> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(AtomicCmpXchgInst, Value)
+
+//===----------------------------------------------------------------------===//
+// AtomicRMWInst Class
+//===----------------------------------------------------------------------===//
+
+/// AtomicRMWInst - an instruction that atomically reads a memory location,
+/// combines it with another value, and then stores the result back. Returns
+/// the old value.
+///
+class AtomicRMWInst : public Instruction {
+ void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
+protected:
+ virtual AtomicRMWInst *clone_impl() const;
+public:
+ /// This enumeration lists the possible modifications atomicrmw can make. In
+ /// the descriptions, 'p' is the pointer to the instruction's memory location,
+ /// 'old' is the initial value of *p, and 'v' is the other value passed to the
+ /// instruction. These instructions always return 'old'.
+ enum BinOp {
+ /// *p = v
+ Xchg,
+ /// *p = old + v
+ Add,
+ /// *p = old - v
+ Sub,
+ /// *p = old & v
+ And,
+ /// *p = ~old & v
+ Nand,
+ /// *p = old | v
+ Or,
+ /// *p = old ^ v
+ Xor,
+ /// *p = old >signed v ? old : v
+ Max,
+ /// *p = old <signed v ? old : v
+ Min,
+ /// *p = old >unsigned v ? old : v
+ UMax,
+ /// *p = old <unsigned v ? old : v
+ UMin,
+
+ FIRST_BINOP = Xchg,
+ LAST_BINOP = UMin,
+ BAD_BINOP
+ };
+
+ // allocate space for exactly two operands
+ void *operator new(size_t s) {
+ return User::operator new(s, 2);
+ }
+ AtomicRMWInst(BinOp Operation, Value *Ptr, Value *Val,
+ AtomicOrdering Ordering, SynchronizationScope SynchScope,
+ Instruction *InsertBefore = 0);
+ AtomicRMWInst(BinOp Operation, Value *Ptr, Value *Val,
+ AtomicOrdering Ordering, SynchronizationScope SynchScope,
+ BasicBlock *InsertAtEnd);
+
+ BinOp getOperation() const {
+ return static_cast<BinOp>(getSubclassDataFromInstruction() >> 5);
+ }
+
+ void setOperation(BinOp Operation) {
+ unsigned short SubclassData = getSubclassDataFromInstruction();
+ setInstructionSubclassData((SubclassData & 31) |
+ (Operation << 5));
+ }
+
+ /// isVolatile - Return true if this is a RMW on a volatile memory location.
+ ///
+ bool isVolatile() const {
+ return getSubclassDataFromInstruction() & 1;
+ }
+
+ /// setVolatile - Specify whether this is a volatile RMW or not.
+ ///
+ void setVolatile(bool V) {
+ setInstructionSubclassData((getSubclassDataFromInstruction() & ~1) |
+ (unsigned)V);
+ }
+
+ /// Transparently provide more efficient getOperand methods.
+ DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
+
+ /// Set the ordering constraint on this RMW.
+ void setOrdering(AtomicOrdering Ordering) {
+ assert(Ordering != NotAtomic &&
+ "atomicrmw instructions can only be atomic.");
+ setInstructionSubclassData((getSubclassDataFromInstruction() & ~(7 << 2)) |
+ (Ordering << 2));
+ }
+
+ /// Specify whether this RMW orders other operations with respect to all
+ /// concurrently executing threads, or only with respect to signal handlers
+ /// executing in the same thread.
+ void setSynchScope(SynchronizationScope SynchScope) {
+ setInstructionSubclassData((getSubclassDataFromInstruction() & ~2) |
+ (SynchScope << 1));
+ }
+
+ /// Returns the ordering constraint on this RMW.
+ AtomicOrdering getOrdering() const {
+ return AtomicOrdering((getSubclassDataFromInstruction() >> 2) & 7);
+ }
+
+ /// Returns whether this RMW is atomic between threads or only within a
+ /// single thread.
+ SynchronizationScope getSynchScope() const {
+ return SynchronizationScope((getSubclassDataFromInstruction() & 2) >> 1);
+ }
+
+ Value *getPointerOperand() { return getOperand(0); }
+ const Value *getPointerOperand() const { return getOperand(0); }
+ static unsigned getPointerOperandIndex() { return 0U; }
+
+ Value *getValOperand() { return getOperand(1); }
+ const Value *getValOperand() const { return getOperand(1); }
+
+ unsigned getPointerAddressSpace() const {
+ return cast<PointerType>(getPointerOperand()->getType())->getAddressSpace();
+ }
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const AtomicRMWInst *) { return true; }
+ static inline bool classof(const Instruction *I) {
+ return I->getOpcode() == Instruction::AtomicRMW;
+ }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
+ }
+private:
+ void Init(BinOp Operation, Value *Ptr, Value *Val,
+ AtomicOrdering Ordering, SynchronizationScope SynchScope);
+ // Shadow Instruction::setInstructionSubclassData with a private forwarding
+ // method so that subclasses cannot accidentally use it.
+ void setInstructionSubclassData(unsigned short D) {
+ Instruction::setInstructionSubclassData(D);
+ }
+};
+
+template <>
+struct OperandTraits<AtomicRMWInst>
+ : public FixedNumOperandTraits<AtomicRMWInst,2> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(AtomicRMWInst, Value)
+
//===----------------------------------------------------------------------===//
// GetElementPtrInst Class
//===----------------------------------------------------------------------===//
///
class GetElementPtrInst : public Instruction {
GetElementPtrInst(const GetElementPtrInst &GEPI);
- void init(Value *Ptr, Value* const *Idx, unsigned NumIdx,
- const Twine &NameStr);
- void init(Value *Ptr, Value *Idx, const Twine &NameStr);
-
- template<typename RandomAccessIterator>
- void init(Value *Ptr,
- RandomAccessIterator IdxBegin,
- RandomAccessIterator IdxEnd,
- const Twine &NameStr,
- // This argument ensures that we have an iterator we can
- // do arithmetic on in constant time
- std::random_access_iterator_tag) {
- unsigned NumIdx = static_cast<unsigned>(std::distance(IdxBegin, IdxEnd));
-
- if (NumIdx > 0) {
- // This requires that the iterator points to contiguous memory.
- init(Ptr, &*IdxBegin, NumIdx, NameStr); // FIXME: for the general case
- // we have to build an array here
- }
- else {
- init(Ptr, 0, NumIdx, NameStr);
- }
- }
-
- /// getIndexedType - Returns the type of the element that would be loaded with
- /// a load instruction with the specified parameters.
- ///
- /// Null is returned if the indices are invalid for the specified
- /// pointer type.
- ///
- template<typename RandomAccessIterator>
- static Type *getIndexedType(Type *Ptr,
- RandomAccessIterator IdxBegin,
- RandomAccessIterator IdxEnd,
- // This argument ensures that we
- // have an iterator we can do
- // arithmetic on in constant time
- std::random_access_iterator_tag) {
- unsigned NumIdx = static_cast<unsigned>(std::distance(IdxBegin, IdxEnd));
-
- if (NumIdx > 0)
- // This requires that the iterator points to contiguous memory.
- return getIndexedType(Ptr, &*IdxBegin, NumIdx);
- else
- return getIndexedType(Ptr, (Value *const*)0, NumIdx);
- }
+ void init(Value *Ptr, ArrayRef<Value *> IdxList, const Twine &NameStr);
/// Constructors - Create a getelementptr instruction with a base pointer an
/// list of indices. The first ctor can optionally insert before an existing
/// instruction, the second appends the new instruction to the specified
/// BasicBlock.
- template<typename RandomAccessIterator>
- inline GetElementPtrInst(Value *Ptr, RandomAccessIterator IdxBegin,
- RandomAccessIterator IdxEnd,
- unsigned Values,
- const Twine &NameStr,
+ inline GetElementPtrInst(Value *Ptr, ArrayRef<Value *> IdxList,
+ unsigned Values, const Twine &NameStr,
Instruction *InsertBefore);
- template<typename RandomAccessIterator>
- inline GetElementPtrInst(Value *Ptr,
- RandomAccessIterator IdxBegin,
- RandomAccessIterator IdxEnd,
- unsigned Values,
- const Twine &NameStr, BasicBlock *InsertAtEnd);
-
- /// Constructors - These two constructors are convenience methods because one
- /// and two index getelementptr instructions are so common.
- GetElementPtrInst(Value *Ptr, Value *Idx, const Twine &NameStr = "",
- Instruction *InsertBefore = 0);
- GetElementPtrInst(Value *Ptr, Value *Idx,
- const Twine &NameStr, BasicBlock *InsertAtEnd);
+ inline GetElementPtrInst(Value *Ptr, ArrayRef<Value *> IdxList,
+ unsigned Values, const Twine &NameStr,
+ BasicBlock *InsertAtEnd);
protected:
virtual GetElementPtrInst *clone_impl() const;
public:
- template<typename RandomAccessIterator>
- static GetElementPtrInst *Create(Value *Ptr, RandomAccessIterator IdxBegin,
- RandomAccessIterator IdxEnd,
+ static GetElementPtrInst *Create(Value *Ptr, ArrayRef<Value *> IdxList,
const Twine &NameStr = "",
Instruction *InsertBefore = 0) {
- typename std::iterator_traits<RandomAccessIterator>::difference_type
- Values = 1 + std::distance(IdxBegin, IdxEnd);
+ unsigned Values = 1 + unsigned(IdxList.size());
return new(Values)
- GetElementPtrInst(Ptr, IdxBegin, IdxEnd, Values, NameStr, InsertBefore);
+ GetElementPtrInst(Ptr, IdxList, Values, NameStr, InsertBefore);
}
- template<typename RandomAccessIterator>
- static GetElementPtrInst *Create(Value *Ptr,
- RandomAccessIterator IdxBegin,
- RandomAccessIterator IdxEnd,
+ static GetElementPtrInst *Create(Value *Ptr, ArrayRef<Value *> IdxList,
const Twine &NameStr,
BasicBlock *InsertAtEnd) {
- typename std::iterator_traits<RandomAccessIterator>::difference_type
- Values = 1 + std::distance(IdxBegin, IdxEnd);
+ unsigned Values = 1 + unsigned(IdxList.size());
return new(Values)
- GetElementPtrInst(Ptr, IdxBegin, IdxEnd, Values, NameStr, InsertAtEnd);
- }
-
- /// Constructors - These two creators are convenience methods because one
- /// index getelementptr instructions are so common.
- static GetElementPtrInst *Create(Value *Ptr, Value *Idx,
- const Twine &NameStr = "",
- Instruction *InsertBefore = 0) {
- return new(2) GetElementPtrInst(Ptr, Idx, NameStr, InsertBefore);
- }
- static GetElementPtrInst *Create(Value *Ptr, Value *Idx,
- const Twine &NameStr,
- BasicBlock *InsertAtEnd) {
- return new(2) GetElementPtrInst(Ptr, Idx, NameStr, InsertAtEnd);
+ GetElementPtrInst(Ptr, IdxList, Values, NameStr, InsertAtEnd);
}
/// Create an "inbounds" getelementptr. See the documentation for the
/// "inbounds" flag in LangRef.html for details.
- template<typename RandomAccessIterator>
static GetElementPtrInst *CreateInBounds(Value *Ptr,
- RandomAccessIterator IdxBegin,
- RandomAccessIterator IdxEnd,
+ ArrayRef<Value *> IdxList,
const Twine &NameStr = "",
Instruction *InsertBefore = 0) {
- GetElementPtrInst *GEP = Create(Ptr, IdxBegin, IdxEnd,
- NameStr, InsertBefore);
+ GetElementPtrInst *GEP = Create(Ptr, IdxList, NameStr, InsertBefore);
GEP->setIsInBounds(true);
return GEP;
}
- template<typename RandomAccessIterator>
static GetElementPtrInst *CreateInBounds(Value *Ptr,
- RandomAccessIterator IdxBegin,
- RandomAccessIterator IdxEnd,
+ ArrayRef<Value *> IdxList,
const Twine &NameStr,
BasicBlock *InsertAtEnd) {
- GetElementPtrInst *GEP = Create(Ptr, IdxBegin, IdxEnd,
- NameStr, InsertAtEnd);
- GEP->setIsInBounds(true);
- return GEP;
- }
- static GetElementPtrInst *CreateInBounds(Value *Ptr, Value *Idx,
- const Twine &NameStr = "",
- Instruction *InsertBefore = 0) {
- GetElementPtrInst *GEP = Create(Ptr, Idx, NameStr, InsertBefore);
- GEP->setIsInBounds(true);
- return GEP;
- }
- static GetElementPtrInst *CreateInBounds(Value *Ptr, Value *Idx,
- const Twine &NameStr,
- BasicBlock *InsertAtEnd) {
- GetElementPtrInst *GEP = Create(Ptr, Idx, NameStr, InsertAtEnd);
+ GetElementPtrInst *GEP = Create(Ptr, IdxList, NameStr, InsertAtEnd);
GEP->setIsInBounds(true);
return GEP;
}
/// Null is returned if the indices are invalid for the specified
/// pointer type.
///
- template<typename RandomAccessIterator>
- static Type *getIndexedType(Type *Ptr, RandomAccessIterator IdxBegin,
- RandomAccessIterator IdxEnd) {
- return getIndexedType(Ptr, IdxBegin, IdxEnd,
- typename std::iterator_traits<RandomAccessIterator>::
- iterator_category());
- }
-
- // FIXME: Use ArrayRef
- static Type *getIndexedType(Type *Ptr,
- Value* const *Idx, unsigned NumIdx);
- static Type *getIndexedType(Type *Ptr,
- Constant* const *Idx, unsigned NumIdx);
-
- static Type *getIndexedType(Type *Ptr,
- uint64_t const *Idx, unsigned NumIdx);
- static Type *getIndexedType(Type *Ptr, Value *Idx);
+ static Type *getIndexedType(Type *Ptr, ArrayRef<Value *> IdxList);
+ static Type *getIndexedType(Type *Ptr, ArrayRef<Constant *> IdxList);
+ static Type *getIndexedType(Type *Ptr, ArrayRef<uint64_t> IdxList);
inline op_iterator idx_begin() { return op_begin()+1; }
inline const_op_iterator idx_begin() const { return op_begin()+1; }
public VariadicOperandTraits<GetElementPtrInst, 1> {
};
-template<typename RandomAccessIterator>
GetElementPtrInst::GetElementPtrInst(Value *Ptr,
- RandomAccessIterator IdxBegin,
- RandomAccessIterator IdxEnd,
+ ArrayRef<Value *> IdxList,
unsigned Values,
const Twine &NameStr,
Instruction *InsertBefore)
: Instruction(PointerType::get(checkGEPType(
- getIndexedType(Ptr->getType(),
- IdxBegin, IdxEnd)),
+ getIndexedType(Ptr->getType(), IdxList)),
cast<PointerType>(Ptr->getType())
->getAddressSpace()),
GetElementPtr,
OperandTraits<GetElementPtrInst>::op_end(this) - Values,
Values, InsertBefore) {
- init(Ptr, IdxBegin, IdxEnd, NameStr,
- typename std::iterator_traits<RandomAccessIterator>
- ::iterator_category());
+ init(Ptr, IdxList, NameStr);
}
-template<typename RandomAccessIterator>
GetElementPtrInst::GetElementPtrInst(Value *Ptr,
- RandomAccessIterator IdxBegin,
- RandomAccessIterator IdxEnd,
+ ArrayRef<Value *> IdxList,
unsigned Values,
const Twine &NameStr,
BasicBlock *InsertAtEnd)
: Instruction(PointerType::get(checkGEPType(
- getIndexedType(Ptr->getType(),
- IdxBegin, IdxEnd)),
+ getIndexedType(Ptr->getType(), IdxList)),
cast<PointerType>(Ptr->getType())
->getAddressSpace()),
GetElementPtr,
OperandTraits<GetElementPtrInst>::op_end(this) - Values,
Values, InsertAtEnd) {
- init(Ptr, IdxBegin, IdxEnd, NameStr,
- typename std::iterator_traits<RandomAccessIterator>
- ::iterator_category());
+ init(Ptr, IdxList, NameStr);
}
else removeAttribute(~0, Attribute::NoInline);
}
+ /// @brief Return true if the call can return twice
+ bool canReturnTwice() const {
+ return paramHasAttr(~0, Attribute::ReturnsTwice);
+ }
+ void setCanReturnTwice(bool Value = true) {
+ if (Value) addAttribute(~0, Attribute::ReturnsTwice);
+ else removeAttribute(~0, Attribute::ReturnsTwice);
+ }
+
/// @brief Determine if the call does not access memory.
bool doesNotAccessMemory() const {
return paramHasAttr(~0, Attribute::ReadNone);
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(PHINode, Value)
+//===----------------------------------------------------------------------===//
+// LandingPadInst Class
+//===----------------------------------------------------------------------===//
+
+//===---------------------------------------------------------------------------
+/// LandingPadInst - The landingpad instruction holds all of the information
+/// necessary to generate correct exception handling. The landingpad instruction
+/// cannot be moved from the top of a landing pad block, which itself is
+/// accessible only from the 'unwind' edge of an invoke. This uses the
+/// SubclassData field in Value to store whether or not the landingpad is a
+/// cleanup.
+///
+class LandingPadInst : public Instruction {
+ /// ReservedSpace - The number of operands actually allocated. NumOperands is
+ /// the number actually in use.
+ unsigned ReservedSpace;
+ LandingPadInst(const LandingPadInst &LP);
+public:
+ enum ClauseType { Catch, Filter };
+private:
+ void *operator new(size_t, unsigned); // DO NOT IMPLEMENT
+ // Allocate space for exactly zero operands.
+ void *operator new(size_t s) {
+ return User::operator new(s, 0);
+ }
+ void growOperands(unsigned Size);
+ void init(Value *PersFn, unsigned NumReservedValues, const Twine &NameStr);
+
+ explicit LandingPadInst(Type *RetTy, Value *PersonalityFn,
+ unsigned NumReservedValues, const Twine &NameStr,
+ Instruction *InsertBefore);
+ explicit LandingPadInst(Type *RetTy, Value *PersonalityFn,
+ unsigned NumReservedValues, const Twine &NameStr,
+ BasicBlock *InsertAtEnd);
+protected:
+ virtual LandingPadInst *clone_impl() const;
+public:
+ /// Constructors - NumReservedClauses is a hint for the number of incoming
+ /// clauses that this landingpad will have (use 0 if you really have no idea).
+ static LandingPadInst *Create(Type *RetTy, Value *PersonalityFn,
+ unsigned NumReservedClauses,
+ const Twine &NameStr = "",
+ Instruction *InsertBefore = 0);
+ static LandingPadInst *Create(Type *RetTy, Value *PersonalityFn,
+ unsigned NumReservedClauses,
+ const Twine &NameStr, BasicBlock *InsertAtEnd);
+ ~LandingPadInst();
+
+ /// Provide fast operand accessors
+ DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
+
+ /// getPersonalityFn - Get the personality function associated with this
+ /// landing pad.
+ Value *getPersonalityFn() const { return getOperand(0); }
+
+ /// isCleanup - Return 'true' if this landingpad instruction is a
+ /// cleanup. I.e., it should be run when unwinding even if its landing pad
+ /// doesn't catch the exception.
+ bool isCleanup() const { return getSubclassDataFromInstruction() & 1; }
+
+ /// setCleanup - Indicate that this landingpad instruction is a cleanup.
+ void setCleanup(bool V) {
+ setInstructionSubclassData((getSubclassDataFromInstruction() & ~1) |
+ (V ? 1 : 0));
+ }
+
+ /// addClause - Add a catch or filter clause to the landing pad.
+ void addClause(Value *ClauseVal);
+
+ /// getClause - Get the value of the clause at index Idx. Use isCatch/isFilter
+ /// to determine what type of clause this is.
+ Value *getClause(unsigned Idx) const { return OperandList[Idx + 1]; }
+
+ /// isCatch - Return 'true' if the clause and index Idx is a catch clause.
+ bool isCatch(unsigned Idx) const {
+ return !isa<ArrayType>(OperandList[Idx + 1]->getType());
+ }
+
+ /// isFilter - Return 'true' if the clause and index Idx is a filter clause.
+ bool isFilter(unsigned Idx) const {
+ return isa<ArrayType>(OperandList[Idx + 1]->getType());
+ }
+
+ /// getNumClauses - Get the number of clauses for this landing pad.
+ unsigned getNumClauses() const { return getNumOperands() - 1; }
+
+ /// reserveClauses - Grow the size of the operand list to accomodate the new
+ /// number of clauses.
+ void reserveClauses(unsigned Size) { growOperands(Size); }
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const LandingPadInst *) { return true; }
+ static inline bool classof(const Instruction *I) {
+ return I->getOpcode() == Instruction::LandingPad;
+ }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
+ }
+};
+
+template <>
+struct OperandTraits<LandingPadInst> : public HungoffOperandTraits<2> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(LandingPadInst, Value)
//===----------------------------------------------------------------------===//
// ReturnInst Class
return reinterpret_cast<ConstantInt*>(getOperand(idx*2));
}
+ // setSuccessorValue - Updates the value associated with the specified
+ // successor.
+ void setSuccessorValue(unsigned idx, ConstantInt* SuccessorValue) {
+ assert(idx < getNumSuccessors() && "Successor # out of range!");
+ setOperand(idx*2, reinterpret_cast<Value*>(SuccessorValue));
+ }
+
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const SwitchInst *) { return true; }
static inline bool classof(const Instruction *I) {
Op<-1>() = reinterpret_cast<Value*>(B);
}
+ /// getLandingPadInst - Get the landingpad instruction from the landing pad
+ /// block (the unwind destination).
+ LandingPadInst *getLandingPadInst() const;
+
BasicBlock *getSuccessor(unsigned i) const {
assert(i < 2 && "Successor # out of range for invoke!");
return i == 0 ? getNormalDest() : getUnwindDest();
virtual void setSuccessorV(unsigned idx, BasicBlock *B);
};
+//===----------------------------------------------------------------------===//
+// ResumeInst Class
+//===----------------------------------------------------------------------===//
+
+//===---------------------------------------------------------------------------
+/// ResumeInst - Resume the propagation of an exception.
+///
+class ResumeInst : public TerminatorInst {
+ ResumeInst(const ResumeInst &RI);
+
+ explicit ResumeInst(Value *Exn, Instruction *InsertBefore=0);
+ ResumeInst(Value *Exn, BasicBlock *InsertAtEnd);
+protected:
+ virtual ResumeInst *clone_impl() const;
+public:
+ static ResumeInst *Create(Value *Exn, Instruction *InsertBefore = 0) {
+ return new(1) ResumeInst(Exn, InsertBefore);
+ }
+ static ResumeInst *Create(Value *Exn, BasicBlock *InsertAtEnd) {
+ return new(1) ResumeInst(Exn, InsertAtEnd);
+ }
+
+ /// Provide fast operand accessors
+ DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
+
+ /// Convenience accessor.
+ Value *getValue() const { return Op<0>(); }
+
+ unsigned getNumSuccessors() const { return 0; }
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const ResumeInst *) { return true; }
+ static inline bool classof(const Instruction *I) {
+ return I->getOpcode() == Instruction::Resume;
+ }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
+ }
+private:
+ virtual BasicBlock *getSuccessorV(unsigned idx) const;
+ virtual unsigned getNumSuccessorsV() const;
+ virtual void setSuccessorV(unsigned idx, BasicBlock *B);
+};
+
+template <>
+struct OperandTraits<ResumeInst> :
+ public FixedNumOperandTraits<ResumeInst, 1> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ResumeInst, Value)
+
//===----------------------------------------------------------------------===//
// UnreachableInst Class
//===----------------------------------------------------------------------===//
projects / oota-llvm.git / blobdiff