LLVM
15.0.0git
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This node is the base class for sequential/in-order min/max selections. More...
#include "llvm/Analysis/ScalarEvolutionExpressions.h"
Public Member Functions | |
Type * | getType () const |
SCEVTypes | getEquivalentNonSequentialSCEVType () const |
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size_t | getNumOperands () const |
const SCEV * | getOperand (unsigned i) const |
op_iterator | op_begin () const |
op_iterator | op_end () const |
op_range | operands () const |
NoWrapFlags | getNoWrapFlags (NoWrapFlags Mask=NoWrapMask) const |
bool | hasNoUnsignedWrap () const |
bool | hasNoSignedWrap () const |
bool | hasNoSelfWrap () const |
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SCEV (const FoldingSetNodeIDRef ID, SCEVTypes SCEVTy, unsigned short ExpressionSize) | |
SCEV (const SCEV &)=delete | |
SCEV & | operator= (const SCEV &)=delete |
SCEVTypes | getSCEVType () const |
Type * | getType () const |
Return the LLVM type of this SCEV expression. More... | |
bool | isZero () const |
Return true if the expression is a constant zero. More... | |
bool | isOne () const |
Return true if the expression is a constant one. More... | |
bool | isAllOnesValue () const |
Return true if the expression is a constant all-ones value. More... | |
bool | isNonConstantNegative () const |
Return true if the specified scev is negated, but not a constant. More... | |
unsigned short | getExpressionSize () const |
void | print (raw_ostream &OS) const |
Print out the internal representation of this scalar to the specified stream. More... | |
void | dump () const |
This method is used for debugging. More... | |
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Node ()=default | |
void * | getNextInBucket () const |
void | SetNextInBucket (void *N) |
Static Public Member Functions | |
static SCEVTypes | getEquivalentNonSequentialSCEVType (SCEVTypes Ty) |
static bool | classof (const SCEV *S) |
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static bool | classof (const SCEV *S) |
Methods for support type inquiry through isa, cast, and dyn_cast: More... | |
Protected Member Functions | |
SCEVSequentialMinMaxExpr (const FoldingSetNodeIDRef ID, enum SCEVTypes T, const SCEV *const *O, size_t N) | |
Note: Constructing subclasses via this constructor is allowed. More... | |
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SCEVNAryExpr (const FoldingSetNodeIDRef ID, enum SCEVTypes T, const SCEV *const *O, size_t N) | |
Friends | |
class | ScalarEvolution |
Additional Inherited Members | |
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using | op_iterator = const SCEV *const * |
using | op_range = iterator_range< op_iterator > |
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enum | NoWrapFlags { FlagAnyWrap = 0, FlagNW = (1 << 0), FlagNUW = (1 << 1), FlagNSW = (1 << 2), NoWrapMask = (1 << 3) - 1 } |
NoWrapFlags are bitfield indices into SubclassData. More... | |
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const SCEV *const * | Operands |
size_t | NumOperands |
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const unsigned short | ExpressionSize |
unsigned short | SubclassData = 0 |
This field is initialized to zero and may be used in subclasses to store miscellaneous information. More... | |
This node is the base class for sequential/in-order min/max selections.
Note that their fundamental difference from SCEVMinMaxExpr's is that they are early-returning upon reaching saturation point. I.e. given 0 umin_seq poison
, the result will be 0
, while the result of 0 umin poison
is poison
.
Definition at line 511 of file ScalarEvolutionExpressions.h.
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inlineprotected |
Note: Constructing subclasses via this constructor is allowed.
Definition at line 523 of file ScalarEvolutionExpressions.h.
References assert(), llvm::SCEV::FlagNSW, llvm::SCEV::FlagNUW, and T.
Definition at line 548 of file ScalarEvolutionExpressions.h.
References S.
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inline |
Definition at line 544 of file ScalarEvolutionExpressions.h.
References llvm::SCEV::getSCEVType().
Referenced by llvm::ScalarEvolution::getSequentialMinMaxExpr(), and SCEVMinMaxExprContains().
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inlinestatic |
Definition at line 534 of file ScalarEvolutionExpressions.h.
References assert(), llvm_unreachable, llvm::scSequentialUMinExpr, and llvm::scUMinExpr.
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inline |
Definition at line 532 of file ScalarEvolutionExpressions.h.
References llvm::SCEVNAryExpr::getOperand(), and llvm::SCEV::getType().
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friend |
Definition at line 512 of file ScalarEvolutionExpressions.h.