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LLVM
4.0.0
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This instruction compares its operands according to the predicate given to the constructor. More...
#include <Instructions.h>
Public Member Functions | |
| ICmpInst (Instruction *InsertBefore, Predicate pred, Value *LHS, Value *RHS, const Twine &NameStr="") | |
| Constructor with insert-before-instruction semantics. More... | |
| ICmpInst (BasicBlock &InsertAtEnd, Predicate pred, Value *LHS, Value *RHS, const Twine &NameStr="") | |
| Constructor with insert-at-end semantics. More... | |
| ICmpInst (Predicate pred, Value *LHS, Value *RHS, const Twine &NameStr="") | |
| Constructor with no-insertion semantics. More... | |
| Predicate | getSignedPredicate () const |
| For example, EQ->EQ, SLE->SLE, UGT->SGT, etc. More... | |
| Predicate | getUnsignedPredicate () const |
| For example, EQ->EQ, SLE->ULE, UGT->UGT, etc. More... | |
| bool | isEquality () const |
| Return true if this predicate is either EQ or NE. More... | |
| bool | isCommutative () const |
| bool | isRelational () const |
| Return true if the predicate is relational (not EQ or NE). More... | |
| void | swapOperands () |
| Exchange the two operands to this instruction in such a way that it does not modify the semantics of the instruction. More... | |
Public Member Functions inherited from llvm::CmpInst | |
| CmpInst ()=delete | |
| void * | operator new (size_t s) |
| void * | operator new (size_t, unsigned)=delete |
| OtherOps | getOpcode () const |
| Get the opcode casted to the right type. More... | |
| Predicate | getPredicate () const |
| Return the predicate for this instruction. More... | |
| void | setPredicate (Predicate P) |
| Set the predicate for this instruction to the specified value. More... | |
| bool | isFPPredicate () const |
| bool | isIntPredicate () const |
| Predicate | getInversePredicate () const |
| For example, EQ -> NE, UGT -> ULE, SLT -> SGE, OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc. More... | |
| Predicate | getSwappedPredicate () const |
| For example, EQ->EQ, SLE->SGE, ULT->UGT, OEQ->OEQ, ULE->UGE, OLT->OGT, etc. More... | |
| DECLARE_TRANSPARENT_OPERAND_ACCESSORS (Value) | |
| Provide more efficient getOperand methods. More... | |
| void | swapOperands () |
| This is just a convenience that dispatches to the subclasses. More... | |
| bool | isCommutative () const |
| This is just a convenience that dispatches to the subclasses. More... | |
| bool | isEquality () const |
| This is just a convenience that dispatches to the subclasses. More... | |
| bool | isSigned () const |
| Determine if this instruction is using a signed comparison. More... | |
| bool | isUnsigned () const |
| Determine if this instruction is using an unsigned comparison. More... | |
| Predicate | getSignedPredicate () |
| For example, ULT->SLT, ULE->SLE, UGT->SGT, UGE->SGE, SLT->Failed assert. More... | |
| bool | isTrueWhenEqual () const |
| This is just a convenience. More... | |
| bool | isFalseWhenEqual () const |
| This is just a convenience. More... | |
| bool | isImpliedTrueByMatchingCmp (Predicate Pred2) |
| Determine if Pred1 implies Pred2 is true when two compares have matching operands. More... | |
| bool | isImpliedFalseByMatchingCmp (Predicate Pred2) |
| Determine if Pred1 implies Pred2 is false when two compares have matching operands. More... | |
Public Member Functions inherited from llvm::Instruction | |
| Instruction (const Instruction &)=delete | |
| Instruction & | operator= (const Instruction &)=delete |
| ~Instruction () override | |
| Instruction * | user_back () |
| Specialize the methods defined in Value, as we know that an instruction can only be used by other instructions. More... | |
| const Instruction * | user_back () const |
| const BasicBlock * | getParent () const |
| BasicBlock * | getParent () |
| const Module * | getModule () const |
| Return the module owning the function this instruction belongs to or nullptr it the function does not have a module. More... | |
| Module * | getModule () |
| const Function * | getFunction () const |
| Return the function this instruction belongs to. More... | |
| Function * | getFunction () |
| void | removeFromParent () |
| This method unlinks 'this' from the containing basic block, but does not delete it. More... | |
| SymbolTableList< Instruction > ::iterator | eraseFromParent () |
| This method unlinks 'this' from the containing basic block and deletes it. More... | |
| void | insertBefore (Instruction *InsertPos) |
| Insert an unlinked instruction into a basic block immediately before the specified instruction. More... | |
| void | insertAfter (Instruction *InsertPos) |
| Insert an unlinked instruction into a basic block immediately after the specified instruction. More... | |
| void | moveBefore (Instruction *MovePos) |
| Unlink this instruction from its current basic block and insert it into the basic block that MovePos lives in, right before MovePos. More... | |
| void | moveBefore (BasicBlock &BB, SymbolTableList< Instruction >::iterator I) |
| Unlink this instruction and insert into BB before I. More... | |
| unsigned | getOpcode () const |
| Returns a member of one of the enums like Instruction::Add. More... | |
| const char * | getOpcodeName () const |
| bool | isTerminator () const |
| bool | isBinaryOp () const |
| bool | isShift () |
| bool | isCast () const |
| bool | isFuncletPad () const |
| bool | isLogicalShift () const |
| Return true if this is a logical shift left or a logical shift right. More... | |
| bool | isArithmeticShift () const |
| Return true if this is an arithmetic shift right. More... | |
| bool | isBitwiseLogicOp () const |
| Return true if this is and/or/xor. More... | |
| bool | hasMetadata () const |
| Return true if this instruction has any metadata attached to it. More... | |
| bool | hasMetadataOtherThanDebugLoc () const |
| Return true if this instruction has metadata attached to it other than a debug location. More... | |
| MDNode * | getMetadata (unsigned KindID) const |
| Get the metadata of given kind attached to this Instruction. More... | |
| MDNode * | getMetadata (StringRef Kind) const |
| Get the metadata of given kind attached to this Instruction. More... | |
| void | getAllMetadata (SmallVectorImpl< std::pair< unsigned, MDNode * >> &MDs) const |
| Get all metadata attached to this Instruction. More... | |
| void | getAllMetadataOtherThanDebugLoc (SmallVectorImpl< std::pair< unsigned, MDNode * >> &MDs) const |
| This does the same thing as getAllMetadata, except that it filters out the debug location. More... | |
| void | getAAMetadata (AAMDNodes &N, bool Merge=false) const |
| Fills the AAMDNodes structure with AA metadata from this instruction. More... | |
| void | setMetadata (unsigned KindID, MDNode *Node) |
| Set the metadata of the specified kind to the specified node. More... | |
| void | setMetadata (StringRef Kind, MDNode *Node) |
| void | copyMetadata (const Instruction &SrcInst, ArrayRef< unsigned > WL=ArrayRef< unsigned >()) |
Copy metadata from SrcInst to this instruction. More... | |
| void | swapProfMetadata () |
| If the instruction has "branch_weights" MD_prof metadata and the MDNode has three operands (including name string), swap the order of the metadata. More... | |
| void | setAAMetadata (const AAMDNodes &N) |
| Sets the metadata on this instruction from the AAMDNodes structure. More... | |
| bool | extractProfMetadata (uint64_t &TrueVal, uint64_t &FalseVal) const |
| Retrieve the raw weight values of a conditional branch or select. More... | |
| bool | extractProfTotalWeight (uint64_t &TotalVal) const |
| Retrieve total raw weight values of a branch. More... | |
| void | setDebugLoc (DebugLoc Loc) |
| Set the debug location information for this instruction. More... | |
| const DebugLoc & | getDebugLoc () const |
| Return the debug location for this node as a DebugLoc. More... | |
| void | setHasNoUnsignedWrap (bool b=true) |
| Set or clear the nsw flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasNoSignedWrap (bool b=true) |
| Set or clear the nsw flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setIsExact (bool b=true) |
| Set or clear the exact flag on this instruction, which must be an operator which supports this flag. More... | |
| bool | hasNoUnsignedWrap () const |
| Determine whether the no unsigned wrap flag is set. More... | |
| bool | hasNoSignedWrap () const |
| Determine whether the no signed wrap flag is set. More... | |
| bool | isExact () const |
| Determine whether the exact flag is set. More... | |
| void | setHasUnsafeAlgebra (bool B) |
| Set or clear the unsafe-algebra flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasNoNaNs (bool B) |
| Set or clear the no-nans flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasNoInfs (bool B) |
| Set or clear the no-infs flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasNoSignedZeros (bool B) |
| Set or clear the no-signed-zeros flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasAllowReciprocal (bool B) |
| Set or clear the allow-reciprocal flag on this instruction, which must be an operator which supports this flag. More... | |
| void | setFastMathFlags (FastMathFlags FMF) |
| Convenience function for setting multiple fast-math flags on this instruction, which must be an operator which supports these flags. More... | |
| void | copyFastMathFlags (FastMathFlags FMF) |
| Convenience function for transferring all fast-math flag values to this instruction, which must be an operator which supports these flags. More... | |
| bool | hasUnsafeAlgebra () const |
| Determine whether the unsafe-algebra flag is set. More... | |
| bool | hasNoNaNs () const |
| Determine whether the no-NaNs flag is set. More... | |
| bool | hasNoInfs () const |
| Determine whether the no-infs flag is set. More... | |
| bool | hasNoSignedZeros () const |
| Determine whether the no-signed-zeros flag is set. More... | |
| bool | hasAllowReciprocal () const |
| Determine whether the allow-reciprocal flag is set. More... | |
| FastMathFlags | getFastMathFlags () const |
| Convenience function for getting all the fast-math flags, which must be an operator which supports these flags. More... | |
| void | copyFastMathFlags (const Instruction *I) |
| Copy I's fast-math flags. More... | |
| void | copyIRFlags (const Value *V) |
| Convenience method to copy supported wrapping, exact, and fast-math flags from V to this instruction. More... | |
| void | andIRFlags (const Value *V) |
| Logical 'and' of any supported wrapping, exact, and fast-math flags of V and this instruction. More... | |
| bool | isAssociative () const |
| Return true if the instruction is associative: More... | |
| bool | isCommutative () const |
| Return true if the instruction is commutative: More... | |
| bool | isIdempotent () const |
| Return true if the instruction is idempotent: More... | |
| bool | isNilpotent () const |
| Return true if the instruction is nilpotent: More... | |
| bool | mayWriteToMemory () const |
| Return true if this instruction may modify memory. More... | |
| bool | mayReadFromMemory () const |
| Return true if this instruction may read memory. More... | |
| bool | mayReadOrWriteMemory () const |
| Return true if this instruction may read or write memory. More... | |
| bool | isAtomic () const |
| Return true if this instruction has an AtomicOrdering of unordered or higher. More... | |
| bool | mayThrow () const |
| Return true if this instruction may throw an exception. More... | |
| bool | isFenceLike () const |
| Return true if this instruction behaves like a memory fence: it can load or store to memory location without being given a memory location. More... | |
| bool | mayHaveSideEffects () const |
| Return true if the instruction may have side effects. More... | |
| bool | isEHPad () const |
| Return true if the instruction is a variety of EH-block. More... | |
| Instruction * | clone () const |
| Create a copy of 'this' instruction that is identical in all ways except the following: More... | |
| bool | isIdenticalTo (const Instruction *I) const |
| Return true if the specified instruction is exactly identical to the current one. More... | |
| bool | isIdenticalToWhenDefined (const Instruction *I) const |
| This is like isIdenticalTo, except that it ignores the SubclassOptionalData flags, which may specify conditions under which the instruction's result is undefined. More... | |
| bool | isSameOperationAs (const Instruction *I, unsigned flags=0) const |
| This function determines if the specified instruction executes the same operation as the current one. More... | |
| bool | isUsedOutsideOfBlock (const BasicBlock *BB) const |
| Return true if there are any uses of this instruction in blocks other than the specified block. More... | |
| void | dropUnknownNonDebugMetadata (ArrayRef< unsigned > KnownIDs) |
| Drop all unknown metadata except for debug locations. More... | |
| void | dropUnknownNonDebugMetadata () |
| void | dropUnknownNonDebugMetadata (unsigned ID1) |
| void | dropUnknownNonDebugMetadata (unsigned ID1, unsigned ID2) |
Public Member Functions inherited from llvm::User | |
| User (const User &)=delete | |
| ~User () override=default | |
| void | operator delete (void *Usr) |
| Free memory allocated for User and Use objects. More... | |
| void | operator delete (void *, unsigned) |
| Placement delete - required by std, but never called. More... | |
| void | operator delete (void *, unsigned, bool) |
| Placement delete - required by std, but never called. More... | |
| Use * | getOperandList () |
| const Use * | getOperandList () const |
| Value * | getOperand (unsigned i) const |
| void | setOperand (unsigned i, Value *Val) |
| const Use & | getOperandUse (unsigned i) const |
| Use & | getOperandUse (unsigned i) |
| unsigned | getNumOperands () const |
| ArrayRef< const uint8_t > | getDescriptor () const |
| Returns the descriptor co-allocated with this User instance. More... | |
| MutableArrayRef< uint8_t > | getDescriptor () |
| Returns the descriptor co-allocated with this User instance. More... | |
| void | setGlobalVariableNumOperands (unsigned NumOps) |
| Set the number of operands on a GlobalVariable. More... | |
| void | setNumHungOffUseOperands (unsigned NumOps) |
| Subclasses with hung off uses need to manage the operand count themselves. More... | |
| op_iterator | op_begin () |
| const_op_iterator | op_begin () const |
| op_iterator | op_end () |
| const_op_iterator | op_end () const |
| op_range | operands () |
| const_op_range | operands () const |
| value_op_iterator | value_op_begin () |
| value_op_iterator | value_op_end () |
| iterator_range< value_op_iterator > | operand_values () |
| const_value_op_iterator | value_op_begin () const |
| const_value_op_iterator | value_op_end () const |
| iterator_range < const_value_op_iterator > | operand_values () const |
| void | dropAllReferences () |
| Drop all references to operands. More... | |
| void | replaceUsesOfWith (Value *From, Value *To) |
| Replace uses of one Value with another. More... | |
Public Member Functions inherited from llvm::Value | |
| Value (const Value &)=delete | |
| void | operator= (const Value &)=delete |
| virtual | ~Value () |
| void | dump () const |
| Support for debugging, callable in GDB: V->dump() More... | |
| Type * | getType () const |
| All values are typed, get the type of this value. More... | |
| LLVMContext & | getContext () const |
| All values hold a context through their type. More... | |
| bool | hasName () const |
| ValueName * | getValueName () const |
| void | setValueName (ValueName *VN) |
| StringRef | getName () const |
| Return a constant reference to the value's name. More... | |
| void | setName (const Twine &Name) |
| Change the name of the value. More... | |
| void | takeName (Value *V) |
| Transfer the name from V to this value. More... | |
| void | replaceAllUsesWith (Value *V) |
| Change all uses of this to point to a new Value. More... | |
| void | replaceNonMetadataUsesWith (Value *V) |
| Change non-metadata uses of this to point to a new Value. More... | |
| void | replaceUsesOutsideBlock (Value *V, BasicBlock *BB) |
| replaceUsesOutsideBlock - Go through the uses list for this definition and make each use point to "V" instead of "this" when the use is outside the block. More... | |
| void | assertModuleIsMaterialized () const |
| bool | use_empty () const |
| use_iterator | materialized_use_begin () |
| const_use_iterator | materialized_use_begin () const |
| use_iterator | use_begin () |
| const_use_iterator | use_begin () const |
| use_iterator | use_end () |
| const_use_iterator | use_end () const |
| iterator_range< use_iterator > | materialized_uses () |
| iterator_range < const_use_iterator > | materialized_uses () const |
| iterator_range< use_iterator > | uses () |
| iterator_range < const_use_iterator > | uses () const |
| bool | user_empty () const |
| user_iterator | materialized_user_begin () |
| const_user_iterator | materialized_user_begin () const |
| user_iterator | user_begin () |
| const_user_iterator | user_begin () const |
| user_iterator | user_end () |
| const_user_iterator | user_end () const |
| User * | user_back () |
| const User * | user_back () const |
| iterator_range< user_iterator > | materialized_users () |
| iterator_range < const_user_iterator > | materialized_users () const |
| iterator_range< user_iterator > | users () |
| iterator_range < const_user_iterator > | users () const |
| bool | hasOneUse () const |
| Return true if there is exactly one user of this value. More... | |
| bool | hasNUses (unsigned N) const |
| Return true if this Value has exactly N users. More... | |
| bool | hasNUsesOrMore (unsigned N) const |
| Return true if this value has N users or more. More... | |
| bool | isUsedInBasicBlock (const BasicBlock *BB) const |
| Check if this value is used in the specified basic block. More... | |
| unsigned | getNumUses () const |
| This method computes the number of uses of this Value. More... | |
| void | addUse (Use &U) |
| This method should only be used by the Use class. More... | |
| unsigned | getValueID () const |
| Return an ID for the concrete type of this object. More... | |
| unsigned | getRawSubclassOptionalData () const |
| Return the raw optional flags value contained in this value. More... | |
| void | clearSubclassOptionalData () |
| Clear the optional flags contained in this value. More... | |
| bool | hasSameSubclassOptionalData (const Value *V) const |
| Check the optional flags for equality. More... | |
| bool | hasValueHandle () const |
| Return true if there is a value handle associated with this value. More... | |
| bool | isUsedByMetadata () const |
| Return true if there is metadata referencing this value. More... | |
| bool | isSwiftError () const |
| Return true if this value is a swifterror value. More... | |
| Value * | stripPointerCasts () |
| Strip off pointer casts, all-zero GEPs, and aliases. More... | |
| const Value * | stripPointerCasts () const |
| Value * | stripPointerCastsNoFollowAliases () |
| Strip off pointer casts and all-zero GEPs. More... | |
| const Value * | stripPointerCastsNoFollowAliases () const |
| Value * | stripInBoundsConstantOffsets () |
| Strip off pointer casts and all-constant inbounds GEPs. More... | |
| const Value * | stripInBoundsConstantOffsets () const |
| Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) |
| Accumulate offsets from stripInBoundsConstantOffsets(). More... | |
| const Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) const |
| Value * | stripInBoundsOffsets () |
| Strip off pointer casts and inbounds GEPs. More... | |
| const Value * | stripInBoundsOffsets () const |
| unsigned | getPointerDereferenceableBytes (const DataLayout &DL, bool &CanBeNull) const |
| Returns the number of bytes known to be dereferenceable for the pointer value. More... | |
| unsigned | getPointerAlignment (const DataLayout &DL) const |
| Returns an alignment of the pointer value. More... | |
| Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) |
| Translate PHI node to its predecessor from the given basic block. More... | |
| const Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) const |
| void | mutateType (Type *Ty) |
| Mutate the type of this Value to be of the specified type. More... | |
| template<class Compare > | |
| void | sortUseList (Compare Cmp) |
| Sort the use-list. More... | |
| void | reverseUseList () |
| Reverse the use-list. More... | |
| void | print (raw_ostream &O, bool IsForDebug=false) const |
| Implement operator<< on Value. More... | |
| void | print (raw_ostream &O, ModuleSlotTracker &MST, bool IsForDebug=false) const |
| void | printAsOperand (raw_ostream &O, bool PrintType=true, const Module *M=nullptr) const |
| Print the name of this Value out to the specified raw_ostream. More... | |
| void | printAsOperand (raw_ostream &O, bool PrintType, ModuleSlotTracker &MST) const |
Public Member Functions inherited from llvm::ilist_node_with_parent< Instruction, BasicBlock > | |
| Instruction * | getPrevNode () |
| const Instruction * | getPrevNode () const |
Get the previous node, or nullptr for the list head. More... | |
| Instruction * | getNextNode () |
Get the next node, or nullptr for the list tail. More... | |
| const Instruction * | getNextNode () const |
Get the next node, or nullptr for the list tail. More... | |
Public Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< Instruction, Options...>::type > | |
| self_iterator | getIterator () |
| const_self_iterator | getIterator () const |
| reverse_self_iterator | getReverseIterator () |
| const_reverse_self_iterator | getReverseIterator () const |
| bool | isSentinel () const |
| Check whether this is the sentinel node. More... | |
Static Public Member Functions | |
| static Predicate | getSignedPredicate (Predicate pred) |
| This is a static version that you can use without an instruction. More... | |
| static Predicate | getUnsignedPredicate (Predicate pred) |
| This is a static version that you can use without an instruction. More... | |
| static bool | isEquality (Predicate P) |
| Return true if this predicate is either EQ or NE. More... | |
| static bool | isRelational (Predicate P) |
| Return true if the predicate is relational (not EQ or NE). More... | |
| static bool | classof (const Instruction *I) |
| static bool | classof (const Value *V) |
Static Public Member Functions inherited from llvm::CmpInst | |
| static CmpInst * | Create (OtherOps Op, Predicate predicate, Value *S1, Value *S2, const Twine &Name="", Instruction *InsertBefore=nullptr) |
| Construct a compare instruction, given the opcode, the predicate and the two operands. More... | |
| static CmpInst * | Create (OtherOps Op, Predicate predicate, Value *S1, Value *S2, const Twine &Name, BasicBlock *InsertAtEnd) |
| Construct a compare instruction, given the opcode, the predicate and the two operands. More... | |
| static bool | isFPPredicate (Predicate P) |
| static bool | isIntPredicate (Predicate P) |
| static StringRef | getPredicateName (Predicate P) |
| static Predicate | getInversePredicate (Predicate pred) |
| For example, EQ -> NE, UGT -> ULE, SLT -> SGE, OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc. More... | |
| static Predicate | getSwappedPredicate (Predicate pred) |
| This is a static version that you can use without an instruction available. More... | |
| static Predicate | getSignedPredicate (Predicate pred) |
| For example, ULT->SLT, ULE->SLE, UGT->SGT, UGE->SGE, SLT->Failed assert. More... | |
| static bool | isUnsigned (Predicate predicate) |
| Determine if the predicate is an unsigned operation. More... | |
| static bool | isSigned (Predicate predicate) |
| Determine if the predicate is an signed operation. More... | |
| static bool | isOrdered (Predicate predicate) |
| Determine if the predicate is an ordered operation. More... | |
| static bool | isUnordered (Predicate predicate) |
| Determine if the predicate is an unordered operation. More... | |
| static bool | isTrueWhenEqual (Predicate predicate) |
| Determine if the predicate is true when comparing a value with itself. More... | |
| static bool | isFalseWhenEqual (Predicate predicate) |
| Determine if the predicate is false when comparing a value with itself. More... | |
| static bool | isImpliedTrueByMatchingCmp (Predicate Pred1, Predicate Pred2) |
| Determine if Pred1 implies Pred2 is true when two compares have matching operands. More... | |
| static bool | isImpliedFalseByMatchingCmp (Predicate Pred1, Predicate Pred2) |
| Determine if Pred1 implies Pred2 is false when two compares have matching operands. More... | |
| static bool | classof (const Instruction *I) |
| Methods for support type inquiry through isa, cast, and dyn_cast: More... | |
| static bool | classof (const Value *V) |
| static Type * | makeCmpResultType (Type *opnd_type) |
| Create a result type for fcmp/icmp. More... | |
Static Public Member Functions inherited from llvm::Instruction | |
| static const char * | getOpcodeName (unsigned OpCode) |
| static bool | isTerminator (unsigned OpCode) |
| static bool | isBinaryOp (unsigned Opcode) |
| static bool | isShift (unsigned Opcode) |
| Determine if the Opcode is one of the shift instructions. More... | |
| static bool | isCast (unsigned OpCode) |
| Determine if the OpCode is one of the CastInst instructions. More... | |
| static bool | isFuncletPad (unsigned OpCode) |
| Determine if the OpCode is one of the FuncletPadInst instructions. More... | |
| static bool | isAssociative (unsigned op) |
| Return true if the instruction is associative: More... | |
| static bool | isCommutative (unsigned op) |
| Return true if the instruction is commutative: More... | |
| static bool | isIdempotent (unsigned op) |
| Return true if the instruction is idempotent: More... | |
| static bool | isNilpotent (unsigned op) |
| Return true if the instruction is nilpotent: More... | |
| static bool | classof (const Value *V) |
| Methods for support type inquiry through isa, cast, and dyn_cast: More... | |
Static Public Member Functions inherited from llvm::User | |
| static bool | classof (const Value *V) |
Protected Member Functions | |
| ICmpInst * | cloneImpl () const |
| Clone an identical ICmpInst. More... | |
Protected Member Functions inherited from llvm::CmpInst | |
| CmpInst (Type *ty, Instruction::OtherOps op, Predicate pred, Value *LHS, Value *RHS, const Twine &Name="", Instruction *InsertBefore=nullptr) | |
| CmpInst (Type *ty, Instruction::OtherOps op, Predicate pred, Value *LHS, Value *RHS, const Twine &Name, BasicBlock *InsertAtEnd) | |
Protected Member Functions inherited from llvm::Instruction | |
| void | setInstructionSubclassData (unsigned short D) |
| unsigned | getSubclassDataFromInstruction () const |
| Instruction (Type *Ty, unsigned iType, Use *Ops, unsigned NumOps, Instruction *InsertBefore=nullptr) | |
| Instruction (Type *Ty, unsigned iType, Use *Ops, unsigned NumOps, BasicBlock *InsertAtEnd) | |
Protected Member Functions inherited from llvm::User | |
| void * | operator new (size_t Size) |
| Allocate a User with an operand pointer co-allocated. More... | |
| void * | operator new (size_t Size, unsigned Us) |
| Allocate a User with the operands co-allocated. More... | |
| void * | operator new (size_t Size, unsigned Us, unsigned DescBytes) |
| Allocate a User with the operands co-allocated. More... | |
| User (Type *ty, unsigned vty, Use *, unsigned NumOps) | |
| void | allocHungoffUses (unsigned N, bool IsPhi=false) |
| Allocate the array of Uses, followed by a pointer (with bottom bit set) to the User. More... | |
| void | growHungoffUses (unsigned N, bool IsPhi=false) |
| Grow the number of hung off uses. More... | |
| template<int Idx> | |
| Use & | Op () |
| template<int Idx> | |
| const Use & | Op () const |
Protected Member Functions inherited from llvm::Value | |
| Value (Type *Ty, unsigned scid) | |
| unsigned short | getSubclassDataFromValue () const |
| void | setValueSubclassData (unsigned short D) |
Protected Member Functions inherited from llvm::ilist_node_with_parent< Instruction, BasicBlock > | |
| ilist_node_with_parent ()=default | |
Protected Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< Instruction, Options...>::type > | |
| ilist_node_impl ()=default | |
Friends | |
| class | Instruction |
Additional Inherited Members | |
Public Types inherited from llvm::CmpInst | |
| enum | Predicate { FCMP_FALSE = 0, FCMP_OEQ = 1, FCMP_OGT = 2, FCMP_OGE = 3, FCMP_OLT = 4, FCMP_OLE = 5, FCMP_ONE = 6, FCMP_ORD = 7, FCMP_UNO = 8, FCMP_UEQ = 9, FCMP_UGT = 10, FCMP_UGE = 11, FCMP_ULT = 12, FCMP_ULE = 13, FCMP_UNE = 14, FCMP_TRUE = 15, FIRST_FCMP_PREDICATE = FCMP_FALSE, LAST_FCMP_PREDICATE = FCMP_TRUE, BAD_FCMP_PREDICATE = FCMP_TRUE + 1, ICMP_EQ = 32, ICMP_NE = 33, ICMP_UGT = 34, ICMP_UGE = 35, ICMP_ULT = 36, ICMP_ULE = 37, ICMP_SGT = 38, ICMP_SGE = 39, ICMP_SLT = 40, ICMP_SLE = 41, FIRST_ICMP_PREDICATE = ICMP_EQ, LAST_ICMP_PREDICATE = ICMP_SLE, BAD_ICMP_PREDICATE = ICMP_SLE + 1 } |
| This enumeration lists the possible predicates for CmpInst subclasses. More... | |
Public Types inherited from llvm::Instruction | |
| enum | OperationEquivalenceFlags { CompareIgnoringAlignment = 1<<0, CompareUsingScalarTypes = 1<<1 } |
| When checking for operation equivalence (using isSameOperationAs) it is sometimes useful to ignore certain attributes. More... | |
| enum | TermOps |
| enum | BinaryOps |
| enum | MemoryOps |
| enum | CastOps |
| enum | FuncletPadOps |
| enum | OtherOps |
Public Types inherited from llvm::User | |
| typedef Use * | op_iterator |
| typedef const Use * | const_op_iterator |
| typedef iterator_range < op_iterator > | op_range |
| typedef iterator_range < const_op_iterator > | const_op_range |
Public Types inherited from llvm::Value | |
| enum | ValueTy |
| Concrete subclass of this. More... | |
| typedef use_iterator_impl< Use > | use_iterator |
| typedef use_iterator_impl < const Use > | const_use_iterator |
| typedef user_iterator_impl< User > | user_iterator |
| typedef user_iterator_impl < const User > | const_user_iterator |
Static Public Attributes inherited from llvm::Value | |
| static const unsigned | MaxAlignmentExponent = 29 |
| The maximum alignment for instructions. More... | |
| static const unsigned | MaximumAlignment = 1u << MaxAlignmentExponent |
Protected Types inherited from llvm::Value | |
| enum | : unsigned { NumUserOperandsBits = 28 } |
| The number of operands in the subclass. More... | |
Protected Types inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< Instruction, Options...>::type > | |
| typedef ilist_iterator < ilist_detail::compute_node_options < Instruction, Options...> ::type, false, false > | self_iterator |
| typedef ilist_iterator < ilist_detail::compute_node_options < Instruction, Options...> ::type, false, true > | const_self_iterator |
| typedef ilist_iterator < ilist_detail::compute_node_options < Instruction, Options...> ::type, true, false > | reverse_self_iterator |
| typedef ilist_iterator < ilist_detail::compute_node_options < Instruction, Options...> ::type, true, true > | const_reverse_self_iterator |
Static Protected Member Functions inherited from llvm::User | |
| template<int Idx, typename U > | |
| static Use & | OpFrom (const U *that) |
Protected Attributes inherited from llvm::Value | |
| unsigned char | SubclassOptionalData: 7 |
| Hold subclass data that can be dropped. More... | |
| unsigned | NumUserOperands: NumUserOperandsBits |
| unsigned | IsUsedByMD: 1 |
| unsigned | HasName: 1 |
| unsigned | HasHungOffUses: 1 |
| unsigned | HasDescriptor: 1 |
This instruction compares its operands according to the predicate given to the constructor.
It only operates on integers or pointers. The operands must be identical types. Represent an integer comparison operator.
Definition at line 1094 of file Instructions.h.
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inline |
Constructor with insert-before-instruction semantics.
| InsertBefore | Where to insert |
| pred | The predicate to use for the comparison |
| LHS | The left-hand-side of the expression |
| RHS | The right-hand-side of the expression |
| NameStr | Name of the instruction |
Definition at line 1118 of file Instructions.h.
Referenced by cloneImpl().
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inline |
Constructor with insert-at-end semantics.
| InsertAtEnd | Block to insert into. |
| pred | The predicate to use for the comparison |
| LHS | The left-hand-side of the expression |
| RHS | The right-hand-side of the expression |
| NameStr | Name of the instruction |
Definition at line 1133 of file Instructions.h.
|
inline |
Constructor with no-insertion semantics.
| pred | The predicate to use for the comparison |
| LHS | The left-hand-side of the expression |
| RHS | The right-hand-side of the expression |
| NameStr | Name of the instruction |
Definition at line 1148 of file Instructions.h.
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inlinestatic |
Definition at line 1223 of file Instructions.h.
References llvm::Instruction::getOpcode().
Definition at line 1226 of file Instructions.h.
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protected |
Clone an identical ICmpInst.
Definition at line 3815 of file Instructions.cpp.
References llvm::CmpInst::getPredicate(), and ICmpInst().
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inline |
For example, EQ->EQ, SLE->SLE, UGT->SGT, etc.
Definition at line 1164 of file Instructions.h.
Referenced by canonicalizeCmpWithConstant(), computePointerICmp(), SimplifyICmpInst(), and transformToIndexedCompare().
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static |
This is a static version that you can use without an instruction.
Return the signed version of the predicate.
Definition at line 3446 of file Instructions.cpp.
References llvm::CmpInst::ICMP_EQ, llvm::CmpInst::ICMP_NE, llvm::CmpInst::ICMP_SGE, llvm::CmpInst::ICMP_SGT, llvm::CmpInst::ICMP_SLE, llvm::CmpInst::ICMP_SLT, llvm::CmpInst::ICMP_UGE, llvm::CmpInst::ICMP_UGT, llvm::CmpInst::ICMP_ULE, llvm::CmpInst::ICMP_ULT, llvm_unreachable, and pred.
|
inline |
For example, EQ->EQ, SLE->ULE, UGT->UGT, etc.
Definition at line 1176 of file Instructions.h.
Referenced by SimplifyICmpInst().
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static |
This is a static version that you can use without an instruction.
Return the unsigned version of the predicate.
Definition at line 3459 of file Instructions.cpp.
References llvm::CmpInst::ICMP_EQ, llvm::CmpInst::ICMP_NE, llvm::CmpInst::ICMP_SGE, llvm::CmpInst::ICMP_SGT, llvm::CmpInst::ICMP_SLE, llvm::CmpInst::ICMP_SLT, llvm::CmpInst::ICMP_UGE, llvm::CmpInst::ICMP_UGT, llvm::CmpInst::ICMP_ULE, llvm::CmpInst::ICMP_ULT, llvm_unreachable, and pred.
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inline |
Definition at line 1198 of file Instructions.h.
Return true if this predicate is either EQ or NE.
This also tests for commutativity.
Definition at line 1186 of file Instructions.h.
Referenced by foldICmpShlOne(), foldSelectICmpAndOr(), getValueFromICmpCondition(), isAllocSiteRemovable(), and llvm::InstCombiner::visitICmpInst().
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inline |
Return true if this predicate is either EQ or NE.
This also tests for commutativity.
Definition at line 1192 of file Instructions.h.
Referenced by llvm::ConstantFoldCompareInstruction(), llvm::InstCombiner::FoldAndOfICmps(), foldLogOpOfMaskedICmps(), foldLogOpOfMaskedICmpsHelper(), llvm::InstCombiner::FoldOrOfICmps(), llvm::PredicatesFoldable(), SimplifyICmpInst(), llvm::ScalarEvolution::SimplifyICmpOperands(), simplifyICmpWithBinOp(), simplifySelectWithICmpCond(), and simplifyUnsignedRangeCheck().
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inline |
Return true if the predicate is relational (not EQ or NE).
Definition at line 1202 of file Instructions.h.
Referenced by IsKnownPredicateViaAddRecStart(), and isSignTest().
Return true if the predicate is relational (not EQ or NE).
Definition at line 1208 of file Instructions.h.
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inline |
Exchange the two operands to this instruction in such a way that it does not modify the semantics of the instruction.
The predicate value may be changed to retain the same result if the predicate is order dependent (e.g. ult). Swap operands and adjust predicate.
Definition at line 1217 of file Instructions.h.
References llvm::PPC::getSwappedPredicate(), and std::swap().
Referenced by llvm::InstCombiner::FoldAndOfICmps(), llvm::InstCombiner::FoldOrOfICmps(), and llvm::InstCombiner::visitICmpInst().
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friend |
Definition at line 1111 of file Instructions.h.
1.8.6