This class is the base class for the comparison instructions. More...
#include "llvm/IR/InstrTypes.h"
Public Types | |
| 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 | UnaryOps |
| enum | BinaryOps |
| enum | MemoryOps |
| enum | CastOps |
| enum | FuncletPadOps |
| enum | OtherOps |
| Public Types inherited from llvm::User | |
| using | op_iterator = Use * |
| using | const_op_iterator = const Use * |
| using | op_range = iterator_range< op_iterator > |
| using | const_op_range = iterator_range< const_op_iterator > |
| Public Types inherited from llvm::Value | |
| enum | ValueTy |
| Concrete subclass of this. More... | |
| using | use_iterator = use_iterator_impl< Use > |
| using | const_use_iterator = use_iterator_impl< const Use > |
| using | user_iterator = user_iterator_impl< User > |
| using | const_user_iterator = user_iterator_impl< const User > |
Public Member Functions | |
| void * | operator new (size_t s) |
| 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... | |
| Predicate | getFlippedStrictnessPredicate () const |
| For predicate of kind "is X or equal to 0" returns the predicate "is X". More... | |
| Predicate | getNonStrictPredicate () const |
| For example, SGT -> SGE, SLT -> SLE, ULT -> ULE, UGT -> UGE. 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 |
| bool | isUnsigned () const |
| 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... | |
| Public Member Functions inherited from llvm::Instruction | |
| Instruction (const Instruction &)=delete | |
| Instruction & | operator= (const Instruction &)=delete |
| 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... | |
| void | moveAfter (Instruction *MovePos) |
| Unlink this instruction from its current basic block and insert it into the basic block that MovePos lives in, right after MovePos. More... | |
| unsigned | getOpcode () const |
| Returns a member of one of the enums like Instruction::Add. More... | |
| const char * | getOpcodeName () const |
| bool | isTerminator () const |
| bool | isUnaryOp () const |
| bool | isBinaryOp () const |
| bool | isIntDivRem () const |
| bool | isShift () |
| bool | isCast () const |
| bool | isFuncletPad () const |
| bool | isExceptionalTerminator () 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 | updateProfWeight (uint64_t S, uint64_t T) |
Updates branch_weights metadata by scaling it by S / T. More... | |
| void | setProfWeight (uint64_t W) |
Sets the branch_weights metadata to W for CallInst. 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 nuw 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... | |
| void | dropPoisonGeneratingFlags () |
| Drops flags that may cause this instruction to evaluate to poison despite having non-poison inputs. More... | |
| bool | isExact () const |
| Determine whether the exact flag is set. More... | |
| void | setFast (bool B) |
| Set or clear all fast-math-flags on this instruction, which must be an operator which supports this flag. More... | |
| void | setHasAllowReassoc (bool B) |
| Set or clear the reassociation 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 | setHasApproxFunc (bool B) |
| Set or clear the approximate-math-functions 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 | isFast () const |
| Determine whether all fast-math-flags are set. More... | |
| bool | hasAllowReassoc () const |
| Determine whether the allow-reassociation 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... | |
| bool | hasAllowContract () const |
| Determine whether the allow-contract flag is set. More... | |
| bool | hasApproxFunc () const |
| Determine whether the approximate-math-functions 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, bool IncludeWrapFlags=true) |
| Convenience method to copy supported exact, fast-math, and (optionally) wrapping 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... | |
| void | applyMergedLocation (const DILocation *LocA, const DILocation *LocB) |
| Merge 2 debug locations and apply it to the Instruction. More... | |
| bool | isAssociative () const LLVM_READONLY |
| 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 | hasAtomicLoad () const |
| Return true if this atomic instruction loads from memory. More... | |
| bool | hasAtomicStore () const |
| Return true if this atomic instruction stores to memory. 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 | isSafeToRemove () const |
| Return true if the instruction can be removed if the result is unused. More... | |
| bool | isEHPad () const |
| Return true if the instruction is a variety of EH-block. More... | |
| bool | isLifetimeStartOrEnd () const |
| Return true if the instruction is a llvm.lifetime.start or llvm.lifetime.end marker. More... | |
| const Instruction * | getNextNonDebugInstruction () const |
| Return a pointer to the next non-debug instruction in the same basic block as 'this', or nullptr if no such instruction exists. More... | |
| Instruction * | getNextNonDebugInstruction () |
| const Instruction * | getPrevNonDebugInstruction () const |
| Return a pointer to the previous non-debug instruction in the same basic block as 'this', or nullptr if no such instruction exists. More... | |
| Instruction * | getPrevNonDebugInstruction () |
| 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... | |
| unsigned | getNumSuccessors () const |
| Return the number of successors that this instruction has. More... | |
| BasicBlock * | getSuccessor (unsigned Idx) const |
| Return the specified successor. This instruction must be a terminator. More... | |
| void | setSuccessor (unsigned Idx, BasicBlock *BB) |
| Update the specified successor to point at the provided 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 | |
| void | operator delete (void *Usr) |
| Free memory allocated for User and Use objects. More... | |
| void | operator delete (void *Usr, unsigned) |
| Placement delete - required by std, called if the ctor throws. More... | |
| void | operator delete (void *Usr, unsigned, bool) |
| Placement delete - required by std, called if the ctor throws. More... | |
| const Use * | getOperandList () const |
| Use * | getOperandList () |
| 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 | |
| Value & | operator= (const Value &)=delete |
| void | deleteValue () |
| Delete a pointer to a generic Value. More... | |
| 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 | assertModuleIsMaterializedImpl () const |
| void | assertModuleIsMaterialized () const |
| bool | use_empty () const |
| bool | materialized_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... | |
| const Value * | stripPointerCasts () const |
| Strip off pointer casts, all-zero GEPs, and aliases. More... | |
| Value * | stripPointerCasts () |
| const Value * | stripPointerCastsAndInvariantGroups () const |
| Strip off pointer casts, all-zero GEPs, aliases and invariant group info. More... | |
| Value * | stripPointerCastsAndInvariantGroups () |
| const Value * | stripPointerCastsNoFollowAliases () const |
| Strip off pointer casts and all-zero GEPs. More... | |
| Value * | stripPointerCastsNoFollowAliases () |
| const Value * | stripInBoundsConstantOffsets () const |
| Strip off pointer casts and all-constant inbounds GEPs. More... | |
| Value * | stripInBoundsConstantOffsets () |
| const Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) const |
| Accumulate offsets from stripInBoundsConstantOffsets(). More... | |
| Value * | stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) |
| const Value * | stripInBoundsOffsets () const |
| Strip off pointer casts and inbounds GEPs. More... | |
| Value * | stripInBoundsOffsets () |
| uint64_t | 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... | |
| const Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) const |
| Translate PHI node to its predecessor from the given basic block. More... | |
| Value * | DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) |
| 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 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 | getFlippedStrictnessPredicate (Predicate pred) |
| This is a static version that you can use without an instruction available. More... | |
| static Predicate | getNonStrictPredicate (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) |
| static bool | isSigned (Predicate predicate) |
| 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 | isUnaryOp (unsigned Opcode) |
| static bool | isBinaryOp (unsigned Opcode) |
| static bool | isIntDivRem (unsigned Opcode) |
| static bool | isShift (unsigned Opcode) |
| Determine if the Opcode is one of the shift instructions. More... | |
| static bool | isBitwiseLogicOp (unsigned Opcode) |
| Determine if the Opcode is and/or/xor. 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 | isExceptionalTerminator (unsigned OpCode) |
| Returns true if the OpCode is a terminator related to exception handling. More... | |
| static bool | isAssociative (unsigned Opcode) |
| static bool | isCommutative (unsigned Opcode) |
| static bool | isIdempotent (unsigned Opcode) |
| static bool | isNilpotent (unsigned Opcode) |
| 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 | |
| CmpInst (Type *ty, Instruction::OtherOps op, Predicate pred, Value *LHS, Value *RHS, const Twine &Name="", Instruction *InsertBefore=nullptr, Instruction *FlagsSource=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 | |
| ~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... | |
| ~User ()=default | |
| template<int Idx> | |
| Use & | Op () |
| template<int Idx> | |
| const Use & | Op () const |
| Protected Member Functions inherited from llvm::Value | |
| Value (Type *Ty, unsigned scid) | |
| ~Value () | |
| Value's destructor should be virtual by design, but that would require that Value and all of its subclasses have a vtable that effectively duplicates the information in the value ID. More... | |
| 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 | |
Detailed Description
This class is the base class for the comparison instructions.
Abstract base class of comparison instructions.
Definition at line 636 of file InstrTypes.h.
Member Enumeration Documentation
◆ Predicate
This enumeration lists the possible predicates for CmpInst subclasses.
Values in the range 0-31 are reserved for FCmpInst, while values in the range 32-64 are reserved for ICmpInst. This is necessary to ensure the predicate values are not overlapping between the classes.
Some passes (e.g. InstCombine) depend on the bit-wise characteristics of FCMP_* values. Changing the bit patterns requires a potential change to those passes.
Definition at line 646 of file InstrTypes.h.
Constructor & Destructor Documentation
◆ CmpInst() [1/2]
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protected |
Definition at line 3287 of file Instructions.cpp.
References llvm::Instruction::copyIRFlags(), llvm::Value::setName(), and setPredicate().
◆ CmpInst() [2/2]
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protected |
Definition at line 3302 of file Instructions.cpp.
References llvm::Value::setName(), and setPredicate().
Member Function Documentation
◆ classof() [1/2]
|
inlinestatic |
Methods for support type inquiry through isa, cast, and dyn_cast:
Definition at line 880 of file InstrTypes.h.
References llvm::Instruction::getOpcode().
◆ classof() [2/2]
Definition at line 884 of file InstrTypes.h.
◆ Create() [1/2]
|
static |
Construct a compare instruction, given the opcode, the predicate and the two operands.
Optionally (if InstBefore is specified) insert the instruction into a BasicBlock right before the specified instruction. The specified Instruction is allowed to be a dereferenced end iterator. Create a CmpInst
Definition at line 3315 of file Instructions.cpp.
Referenced by llvm::BinaryOperator::cloneImpl(), llvm::UnaryOperator::cloneImpl(), llvm::fuzzerop::cmpOpDescriptor(), llvm::InnerLoopVectorizer::createVectorizedLoopSkeleton(), foldICmpWithHighBitMask(), llvm::ConstantExpr::getAsInstruction(), isSafeAndProfitableToSinkLoad(), SinkCmpExpression(), llvm::InstCombiner::visitExtractElementInst(), and llvm::InstCombiner::visitICmpInst().
◆ Create() [2/2]
|
static |
Construct a compare instruction, given the opcode, the predicate and the two operands.
Also automatically insert this instruction to the end of the BasicBlock specified. Create a CmpInst
Definition at line 3335 of file Instructions.cpp.
◆ DECLARE_TRANSPARENT_OPERAND_ACCESSORS()
| llvm::CmpInst::DECLARE_TRANSPARENT_OPERAND_ACCESSORS | ( | Value | ) |
Provide more efficient getOperand methods.
◆ getFlippedStrictnessPredicate() [1/2]
|
inline |
For predicate of kind "is X or equal to 0" returns the predicate "is X".
For predicate of kind "is X" returns the predicate "is X or equal to 0". does not support other kind of predicates.
- Returns
- the predicate that does not contains is equal to zero if it had and vice versa. Return the flipped strictness of predicate
Definition at line 776 of file InstrTypes.h.
References llvm::PPC::getPredicate().
Referenced by llvm::LoopPredicationPass::run().
◆ getFlippedStrictnessPredicate() [2/2]
|
static |
This is a static version that you can use without an instruction available.
Return the flipped strictness of predicate
Definition at line 3455 of file Instructions.cpp.
References FCMP_OGE, FCMP_OGT, FCMP_OLE, FCMP_OLT, FCMP_UGE, FCMP_UGT, FCMP_ULE, FCMP_ULT, ICMP_SGE, ICMP_SGT, ICMP_SLE, ICMP_SLT, ICMP_UGE, ICMP_UGT, ICMP_ULE, ICMP_ULT, and llvm_unreachable.
◆ getInversePredicate() [1/2]
|
inline |
For example, EQ -> NE, UGT -> ULE, SLT -> SGE, OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc.
- Returns
- the inverse predicate for the instruction's current predicate. Return the inverse of the instruction's predicate.
Definition at line 745 of file InstrTypes.h.
References llvm::PPC::getPredicate(), and pred.
Referenced by alwaysAvailable(), canonicalizeSaturatedSubtract(), llvm::ConstantFoldBinaryInstruction(), countToEliminateCompares(), llvm::SelectionDAGBuilder::EmitBranchForMergedCondition(), llvm::FoldBranchToCommonDest(), foldXorToXor(), llvm::ScalarEvolution::forgetValue(), llvm::ValueLatticeElement::getCompare(), getCompareCC(), getComparePred(), llvm::getICmpCode(), getValueFromICmpCondition(), isAlwaysFoldable(), isImpliedCondICmps(), isImpliedFalseByMatchingCmp(), llvm::ScalarEvolution::isLoopEntryGuardedByCond(), llvm::ScalarEvolution::isLoopInvariantPredicate(), llvm::ConstantRange::makeSatisfyingICmpRegion(), matchFastFloatClamp(), negateICmpIfUsedByBranchOrSelectOnly(), processUGT_ADDCST_ADD(), llvm::InstCombiner::replacedSelectWithOperand(), llvm::LoopPredicationPass::run(), simplifyAndOfICmpsWithSameOperands(), SimplifyICmpInst(), simplifyICmpWithMinMax(), simplifyOrOfICmpsWithSameOperands(), llvm::InstCombiner::simplifyRangeCheck(), transformToIndexedCompare(), truncateIVUse(), llvm::InstCombiner::visitBranchInst(), llvm::InstCombiner::visitCallInst(), llvm::InstCombiner::visitICmpInst(), llvm::InstCombiner::visitXor(), and X86ChooseCmpImmediateOpcode().
◆ getInversePredicate() [2/2]
|
static |
For example, EQ -> NE, UGT -> ULE, SLT -> SGE, OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc.
- Returns
- the inverse predicate for predicate provided in
pred. Return the inverse of a given predicate
Definition at line 3364 of file Instructions.cpp.
References FCMP_FALSE, FCMP_OEQ, FCMP_OGE, FCMP_OGT, FCMP_OLE, FCMP_OLT, FCMP_ONE, FCMP_ORD, FCMP_TRUE, FCMP_UEQ, FCMP_UGE, FCMP_UGT, FCMP_ULE, FCMP_ULT, FCMP_UNE, FCMP_UNO, ICMP_EQ, ICMP_NE, ICMP_SGE, ICMP_SGT, ICMP_SLE, ICMP_SLT, ICMP_UGE, ICMP_UGT, ICMP_ULE, ICMP_ULT, and llvm_unreachable.
◆ getNonStrictPredicate() [1/2]
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inline |
For example, SGT -> SGE, SLT -> SLE, ULT -> ULE, UGT -> UGE.
Returns the non-strict version of strict comparisons.
Definition at line 787 of file InstrTypes.h.
References DECLARE_TRANSPARENT_OPERAND_ACCESSORS, and llvm::PPC::getPredicate().
Referenced by llvm::ScalarEvolution::isLoopEntryGuardedByCond().
◆ getNonStrictPredicate() [2/2]
|
static |
This is a static version that you can use without an instruction available.
- Returns
- the non-strict version of comparison provided in
pred. Ifpredis not a strict comparison predicate, returnspred. Returns the non-strict version of strict comparisons.
Definition at line 3508 of file Instructions.cpp.
References FCMP_OGE, FCMP_OGT, FCMP_OLE, FCMP_OLT, FCMP_UGE, FCMP_UGT, FCMP_ULE, FCMP_ULT, ICMP_SGE, ICMP_SGT, ICMP_SLE, ICMP_SLT, ICMP_UGE, ICMP_UGT, ICMP_ULE, ICMP_ULT, and pred.
◆ getOpcode()
|
inline |
Get the opcode casted to the right type.
Definition at line 716 of file InstrTypes.h.
References llvm::Instruction::getOpcode().
Referenced by llvm::BinaryOperator::cloneImpl(), llvm::UnaryOperator::cloneImpl(), isSafeAndProfitableToSinkLoad(), and SinkCmpExpression().
◆ getPredicate()
|
inline |
Return the predicate for this instruction.
Definition at line 721 of file InstrTypes.h.
Referenced by alwaysAvailable(), areInverseVectorBitmasks(), canonicalizeCmpWithConstant(), canonicalizeICmpBool(), canonicalizeSaturatedSubtract(), canTransformToMemCmp(), CC_MipsO32_FP64(), llvm::ICmpInst::cloneImpl(), llvm::FCmpInst::cloneImpl(), computeUnlikelySuccessors(), computeUnsignedMinMaxValuesFromKnownBits(), computeValueLLTs(), ConvertToSInt(), createFFSIntrinsic(), llvm::SelectionDAGBuilder::EmitBranchForMergedCondition(), llvm::AlignmentFromAssumptionsPass::extractAlignmentInfo(), ExtractEquivalentCondition(), foldAndOrOfEqualityCmpsWithConstants(), foldFabsWithFcmpZero(), foldFCmpReciprocalAndZero(), foldICmpShlOne(), foldICmpWithMinMax(), foldICmpWithTruncSignExtendedVal(), foldLogOpOfMaskedICmps(), foldSelectICmpAnd(), foldSelectICmpAndAnd(), foldSelectICmpAndOr(), foldSignedTruncationCheck(), foldVectorCmp(), foldXorToXor(), llvm::ScalarEvolution::forgetValue(), getBranchCondString(), getComparePred(), GetConstantInt(), getDemandedBitsLHSMask(), llvm::getICmpCode(), llvm::DOTGraphTraits< BoUpSLP * >::getNodeAttributes(), llvm::DenseMapInfo< SimpleValue >::getTombstoneKey(), getValueFromICmpCondition(), handleBrSelExpect(), INITIALIZE_PASS(), isAlwaysFoldable(), isImpliedCondICmps(), isSafeAndProfitableToSinkLoad(), isSameCompare(), matchCondition(), llvm::matchSelectPattern(), needsLFTR(), negateICmpIfUsedByBranchOrSelectOnly(), llvm::FastISel::optimizeCmpPredicate(), OptimizeGlobalAddressOfMalloc(), processCmp(), processUGT_ADDCST_ADD(), processUMulZExtIdiom(), promotedOpIsNUW(), llvm::InstCombiner::replacedSelectWithOperand(), ReplaceUsesOfWith(), reuseTableCompare(), simplifyAndOrOfFCmps(), simplifyAndOrOfICmpsWithConstants(), simplifyAndOrOfICmpsWithZero(), SimplifyIndirectBrOnSelect(), llvm::InstCombiner::simplifyRangeCheck(), SinkCmpExpression(), transformToIndexedCompare(), llvm::JumpThreadingPass::TryToUnfoldSelect(), TypeSizeToSizeIndex(), llvm::Interpreter::visitFCmpInst(), llvm::InstCombiner::visitFCmpInst(), llvm::Interpreter::visitICmpInst(), llvm::InstCombiner::visitICmpInst(), llvm::InstCombiner::visitTrunc(), and llvm::InstCombiner::visitZExt().
◆ getPredicateName()
Definition at line 3397 of file Instructions.cpp.
References FCMP_FALSE, FCMP_OEQ, FCMP_OGE, FCMP_OGT, FCMP_OLE, FCMP_OLT, FCMP_ONE, FCMP_ORD, FCMP_TRUE, FCMP_UEQ, FCMP_UGE, FCMP_UGT, FCMP_ULE, FCMP_ULT, FCMP_UNE, FCMP_UNO, ICMP_EQ, ICMP_NE, ICMP_SGE, ICMP_SGT, ICMP_SLE, ICMP_SLT, ICMP_UGE, ICMP_UGT, ICMP_ULE, and ICMP_ULT.
Referenced by getBranchCondString(), maybePrintCallAddrSpace(), and llvm::MachineOperand::print().
◆ getSignedPredicate() [1/2]
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static |
For example, ULT->SLT, ULE->SLE, UGT->SGT, UGE->SGE, SLT->Failed assert.
- Returns
- the signed version of the unsigned predicate pred. return the signed version of a predicate
Definition at line 3522 of file Instructions.cpp.
References assert(), ICMP_SGE, ICMP_SGT, ICMP_SLE, ICMP_SLT, ICMP_UGE, ICMP_UGT, ICMP_ULE, ICMP_ULT, isUnsigned(), and llvm_unreachable.
◆ getSignedPredicate() [2/2]
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inline |
For example, ULT->SLT, ULE->SLE, UGT->SGT, UGE->SGE, SLT->Failed assert.
- Returns
- the signed version of the predicate for this instruction (which has to be an unsigned predicate). return the signed version of a predicate
Definition at line 835 of file InstrTypes.h.
References llvm::PPC::getPredicate().
Referenced by llvm::ScalarEvolution::isLoopEntryGuardedByCond().
◆ getSwappedPredicate() [1/2]
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inline |
For example, EQ->EQ, SLE->SGE, ULT->UGT, OEQ->OEQ, ULE->UGE, OLT->OGT, etc.
- Returns
- the predicate that would be the result of exchanging the two operands of the CmpInst instruction without changing the result produced. Return the predicate as if the operands were swapped
Definition at line 761 of file InstrTypes.h.
References llvm::PPC::getPredicate(), and llvm::PPC::getSwappedPredicate().
Referenced by alwaysAvailable(), canonicalizeSaturatedSubtract(), llvm::ConstantFoldCompareInstOperands(), llvm::ConstantFoldCompareInstruction(), countToEliminateCompares(), evaluateFCmpRelation(), evaluateICmpRelation(), ExtractEquivalentCondition(), foldFCmpReciprocalAndZero(), foldICmpShlOne(), foldICmpWithHighBitMask(), foldICmpWithMinMax(), foldICmpWithTruncSignExtendedVal(), foldSignedTruncationCheck(), llvm::ScalarEvolution::forgetValue(), getValueFromICmpCondition(), isImpliedCondMatchingOperands(), llvm::ScalarEvolution::isLoopEntryGuardedByCond(), llvm::ScalarEvolution::isLoopInvariantPredicate(), llvm::ScalarEvolution::isMonotonicPredicate(), isSameCompare(), matchClamp(), matchMinMaxOfMinMax(), matchSelectPattern(), llvm::gvn::AvailableValueInBlock::MaterializeAdjustedValue(), llvm::GVN::ValueTable::phiTranslate(), processUGT_ADDCST_ADD(), llvm::LoopPredicationPass::run(), SimplifyFCmpInst(), SimplifyICmpInst(), llvm::ScalarEvolution::SimplifyICmpOperands(), simplifyICmpWithMinMax(), llvm::InstCombiner::simplifyRangeCheck(), simplifyUnsignedRangeCheck(), ThreadCmpOverPHI(), ThreadCmpOverSelect(), transformToIndexedCompare(), TypeSizeToSizeIndex(), llvm::InstCombiner::visitCallInst(), llvm::InstCombiner::visitFCmpInst(), and llvm::InstCombiner::visitICmpInst().
◆ getSwappedPredicate() [2/2]
|
static |
This is a static version that you can use without an instruction available.
Return the predicate as if the operands were swapped.
Definition at line 3478 of file Instructions.cpp.
References FCMP_FALSE, FCMP_OEQ, FCMP_OGE, FCMP_OGT, FCMP_OLE, FCMP_OLT, FCMP_ONE, FCMP_ORD, FCMP_TRUE, FCMP_UEQ, FCMP_UGE, FCMP_UGT, FCMP_ULE, FCMP_ULT, FCMP_UNE, FCMP_UNO, ICMP_EQ, ICMP_NE, ICMP_SGE, ICMP_SGT, ICMP_SLE, ICMP_SLT, ICMP_UGE, ICMP_UGT, ICMP_ULE, ICMP_ULT, llvm_unreachable, and pred.
◆ isCommutative()
| bool CmpInst::isCommutative | ( | ) | const |
This is just a convenience that dispatches to the subclasses.
Determine if this CmpInst is commutative.
Definition at line 3352 of file Instructions.cpp.
◆ isEquality()
| bool CmpInst::isEquality | ( | ) | const |
This is just a convenience that dispatches to the subclasses.
Determine if this is an equals/not equals predicate.
Definition at line 3358 of file Instructions.cpp.
Referenced by getComparePred(), llvm::matchSelectPattern(), and llvm::InstCombiner::visitPHINode().
◆ isFalseWhenEqual() [1/2]
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inline |
This is just a convenience.
Determine if this is false when both operands are the same.
Definition at line 847 of file InstrTypes.h.
References llvm::PPC::getPredicate(), isOrdered(), and llvm::ISD::isTrueWhenEqual().
Referenced by computePointerICmp(), llvm::ScalarEvolution::isLoopEntryGuardedByCond(), simplifyAndOfICmpsWithSameOperands(), SimplifyFCmpInst(), and llvm::ScalarEvolution::SimplifyICmpOperands().
◆ isFalseWhenEqual() [2/2]
◆ isFPPredicate() [1/2]
Definition at line 728 of file InstrTypes.h.
Referenced by getParameterABIAttributes().
◆ isFPPredicate() [2/2]
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inline |
Definition at line 738 of file InstrTypes.h.
References llvm::PPC::getPredicate(), and isFPPredicate().
Referenced by llvm::ARMLegalizerInfo::ARMLegalizerInfo(), llvm::MachineIRBuilder::buildInstr(), foldSelectBinOpIdentity(), llvm::ConstantExpr::getFCmp(), isFPPredicate(), matchSelectPattern(), SimplifyFCmpInst(), and llvm::InstCombiner::visitCallInst().
◆ isImpliedFalseByMatchingCmp()
Determine if Pred1 implies Pred2 is false when two compares have matching operands.
Definition at line 3614 of file Instructions.cpp.
References llvm::User::allocHungoffUses(), assert(), llvm::Default, E, llvm::SwitchInst::getCondition(), llvm::Value::getContext(), llvm::SwitchInst::getDefaultDest(), getInversePredicate(), llvm::User::getNumOperands(), llvm::User::getOperandList(), llvm::Value::getType(), llvm::Type::getVoidTy(), llvm::cl::init(), llvm::Instruction::Instruction(), isImpliedTrueByMatchingCmp(), llvm::User::setNumHungOffUseOperands(), SI, and llvm::Value::SubclassOptionalData.
Referenced by alwaysAvailable(), and isImpliedCondMatchingOperands().
◆ isImpliedTrueByMatchingCmp()
Determine if Pred1 implies Pred2 is true when two compares have matching operands.
Definition at line 3589 of file Instructions.cpp.
References ICMP_EQ, ICMP_NE, ICMP_SGE, ICMP_SGT, ICMP_SLE, ICMP_SLT, ICMP_UGE, ICMP_UGT, ICMP_ULE, and ICMP_ULT.
Referenced by alwaysAvailable(), isImpliedCondMatchingOperands(), isImpliedFalseByMatchingCmp(), simplifyAndOfICmpsWithSameOperands(), and simplifyOrOfICmpsWithSameOperands().
◆ isIntPredicate() [1/2]
Definition at line 732 of file InstrTypes.h.
References P.
Referenced by getParameterABIAttributes().
◆ isIntPredicate() [2/2]
|
inline |
Definition at line 739 of file InstrTypes.h.
References llvm::PPC::getPredicate(), and isIntPredicate().
Referenced by llvm::MachineIRBuilder::buildInstr(), canonicalizeSaturatedSubtract(), computeValueLLTs(), llvm::ConstantFoldCompareInstruction(), createMinMax(), llvm::ConstantExpr::getICmp(), isIntPredicate(), llvm::ARMLegalizerInfo::legalizeCustom(), matchMinMaxOfMinMax(), matchSelectPattern(), llvm::MachineOperand::print(), SimplifyCmpInst(), and SimplifyICmpInst().
◆ isOrdered()
Determine if the predicate is an ordered operation.
Definition at line 3555 of file Instructions.cpp.
References FCMP_OEQ, FCMP_OGE, FCMP_OGT, FCMP_OLE, FCMP_OLT, FCMP_ONE, and FCMP_ORD.
Referenced by matchSelectPattern(), and SimplifyFCmpInst().
◆ isSigned() [1/2]
|
inline |
- Returns
- true if the comparison is signed, false otherwise. Determine if this instruction is using a signed comparison.
Definition at line 816 of file InstrTypes.h.
References llvm::PPC::getPredicate().
Referenced by areInverseVectorBitmasks(), canonicalizeCmpWithConstant(), llvm::ConstantFoldCompareInstruction(), foldICmpShlOne(), foldICmpWithMinMax(), foldICmpWithTruncSignExtendedVal(), foldSignedTruncationCheck(), foldXorToXor(), IsKnownPredicateViaAddRecStart(), llvm::ScalarEvolution::isLoopEntryGuardedByCond(), llvm::ScalarEvolution::isLoopInvariantPredicate(), isSignTest(), lookThroughCast(), lowerICMPIntrinsic(), llvm::predicatesFoldable(), processUGT_ADDCST_ADD(), promotedOpIsNUW(), llvm::InstCombiner::replacedSelectWithOperand(), simplifyICmpWithBinOp(), transformToIndexedCompare(), truncateIVUse(), TypeSizeToSizeIndex(), llvm::InstCombiner::visitCallInst(), and llvm::LegalizerHelper::widenScalar().
◆ isSigned() [2/2]
◆ isTrueWhenEqual() [1/2]
|
inline |
This is just a convenience.
Determine if this is true when both operands are the same.
Definition at line 841 of file InstrTypes.h.
References llvm::PPC::getPredicate(), and llvm::ISD::isTrueWhenEqual().
Referenced by computePointerICmp(), computeUnlikelySuccessors(), llvm::ConstantFoldCompareInstruction(), isAlwaysFoldable(), llvm::ScalarEvolution::isLoopEntryGuardedByCond(), llvm::ScalarEvolution::isLoopInvariantPredicate(), isTruePredicate(), SimplifyFCmpInst(), SimplifyICmpInst(), llvm::ScalarEvolution::SimplifyICmpOperands(), simplifyOrOfICmpsWithSameOperands(), and transformToIndexedCompare().
◆ isTrueWhenEqual() [2/2]
◆ isUnordered()
Determine if the predicate is an unordered operation.
Definition at line 3564 of file Instructions.cpp.
References FCMP_UEQ, FCMP_UGE, FCMP_UGT, FCMP_ULE, FCMP_ULT, FCMP_UNE, and FCMP_UNO.
Referenced by canonicalizeSaturatedSubtract(), llvm::ConstantFoldCompareInstruction(), and SimplifyFCmpInst().
◆ isUnsigned() [1/2]
|
inline |
- Returns
- true if the comparison is unsigned, false otherwise. Determine if this instruction is using an unsigned comparison.
Definition at line 822 of file InstrTypes.h.
References llvm::PPC::getPredicate().
Referenced by canonicalizeSaturatedSubtract(), CC_MipsO32_FP64(), foldICmpShlOne(), foldICmpWithTruncSignExtendedVal(), getCompareCC(), getComparePred(), getSignedPredicate(), llvm::ScalarEvolution::isLoopEntryGuardedByCond(), lookThroughCast(), simplifyICmpWithBinOp(), simplifyUnsignedRangeCheck(), and TypeSizeToSizeIndex().
◆ isUnsigned() [2/2]
◆ makeCmpResultType()
Create a result type for fcmp/icmp.
Definition at line 889 of file InstrTypes.h.
References D, llvm::VectorType::get(), llvm::Type::getContext(), llvm::Type::getInt1Ty(), and llvm::Value::setValueSubclassData().
Referenced by areInverseVectorBitmasks(), createRdxShuffleMask(), GetCompareTy(), getFCmpValue(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getIntrinsicInstrCost(), llvm::getPredForICmpCode(), matchVectorSplittingReduction(), llvm::gvn::AvailableValueInBlock::MaterializeAdjustedValue(), and transformToIndexedCompare().
◆ operator new()
|
inline |
Definition at line 694 of file InstrTypes.h.
References Name.
◆ setPredicate()
|
inline |
Set the predicate for this instruction to the specified value.
Definition at line 726 of file InstrTypes.h.
Referenced by canonicalizeSaturatedSubtract(), CmpInst(), llvm::FoldBranchToCommonDest(), foldFabsWithFcmpZero(), foldXorToXor(), negateICmpIfUsedByBranchOrSelectOnly(), llvm::InstCombiner::visitBranchInst(), and llvm::InstCombiner::visitFCmpInst().
◆ swapOperands()
| void CmpInst::swapOperands | ( | ) |
This is just a convenience that dispatches to the subclasses.
Swap the operands and adjust predicate accordingly to retain the same comparison.
Definition at line 3345 of file Instructions.cpp.
The documentation for this class was generated from the following files:
- include/llvm/IR/InstrTypes.h
- lib/IR/Instructions.cpp
