An object of this class is returned by queries that could not be answered. More...
#include "llvm/Analysis/ScalarEvolution.h"
Inheritance diagram for llvm::SCEVCouldNotCompute:
Collaboration diagram for llvm::SCEVCouldNotCompute:
Public Member Functions | |
| SCEVCouldNotCompute () | |
 Public Member Functions inherited from llvm::SCEV | |
| SCEV (const FoldingSetNodeIDRef ID, unsigned SCEVTy) | |
| SCEV (const SCEV &)=delete | |
| SCEV & | operator= (const SCEV &)=delete |
| unsigned | 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... | |
| 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... | |
| Public Member Functions inherited from llvm::FoldingSetBase::Node | |
| Node ()=default | |
| void * | getNextInBucket () const |
| void | SetNextInBucket (void *N) |
Static Public Member Functions | |
| static bool | classof (const SCEV *S) |
| Methods for support type inquiry through isa, cast, and dyn_cast: More... | |
Additional Inherited Members | |
| Public Types inherited from llvm::SCEV | |
| enum | NoWrapFlags { FlagAnyWrap = 0, FlagNW = (1 << 0), FlagNUW = (1 << 1), FlagNSW = (1 << 2), NoWrapMask = (1 << 3) - 1 } |
| NoWrapFlags are bitfield indices into SubclassData. More... | |
| Protected Attributes inherited from llvm::SCEV | |
| unsigned short | SubclassData = 0 |
| This field is initialized to zero and may be used in subclasses to store miscellaneous information. More... | |
Detailed Description
An object of this class is returned by queries that could not be answered.
For example, if you ask for the number of iterations of a linked-list traversal loop, you will get one of these. None of the standard SCEV operations are valid on this class, it is just a marker.
Definition at line 173 of file ScalarEvolution.h.
Constructor & Destructor Documentation
◆ SCEVCouldNotCompute()
| SCEVCouldNotCompute::SCEVCouldNotCompute | ( | ) |
Definition at line 395 of file ScalarEvolution.cpp.
Member Function Documentation
◆ classof()
Methods for support type inquiry through isa, cast, and dyn_cast:
Definition at line 398 of file ScalarEvolution.cpp.
References llvm::SCEV::getSCEVType(), and llvm::scCouldNotCompute.
The documentation for this struct was generated from the following files:
- include/llvm/Analysis/ScalarEvolution.h
- lib/Analysis/ScalarEvolution.cpp
