llvm::SCEVUnknown Class Reference
#include <ScalarEvolutionExpressions.h>
Public Member Functions | |
| Value * | getValue () const |
| virtual bool | isLoopInvariant (const Loop *L) const |
| virtual bool | hasComputableLoopEvolution (const Loop *QL) const |
| SCEVHandle | replaceSymbolicValuesWithConcrete (const SCEVHandle &Sym, const SCEVHandle &Conc, ScalarEvolution &SE) const |
| virtual const Type * | getType () const |
| virtual void | print (std::ostream &OS) const |
| void | print (std::ostream *OS) const |
Static Public Member Functions | |
| static bool | classof (const SCEVUnknown *S) |
| Methods for support type inquiry through isa, cast, and dyn_cast:. | |
| static bool | classof (const SCEV *S) |
Protected Member Functions | |
| ~SCEVUnknown () | |
Friends | |
| class | ScalarEvolution |
Detailed Description
SCEVUnknown - This means that we are dealing with an entirely unknown SCEV value, and only represent it as it's LLVM Value. This is the "bottom" value for the analysis.Definition at line 547 of file ScalarEvolutionExpressions.h.
Constructor & Destructor Documentation
| SCEVUnknown::~SCEVUnknown | ( | ) | [protected] |
Member Function Documentation
| Value* llvm::SCEVUnknown::getValue | ( | ) | const [inline] |
Definition at line 556 of file ScalarEvolutionExpressions.h.
References V.
Referenced by llvm::SCEVExpander::visitUnknown().
| bool SCEVUnknown::isLoopInvariant | ( | const Loop * | L | ) | const [virtual] |
isLoopInvariant - Return true if the value of this SCEV is unchanging in the specified loop.
Implements llvm::SCEV.
Definition at line 406 of file ScalarEvolution.cpp.
References llvm::LoopBase< BlockT >::contains(), I, and V.
| virtual bool llvm::SCEVUnknown::hasComputableLoopEvolution | ( | const Loop * | L | ) | const [inline, virtual] |
hasComputableLoopEvolution - Return true if this SCEV changes value in a known way in the specified loop. This property being true implies that the value is variant in the loop AND that we can emit an expression to compute the value of the expression at any particular loop iteration.
Implements llvm::SCEV.
Definition at line 559 of file ScalarEvolutionExpressions.h.
| SCEVHandle llvm::SCEVUnknown::replaceSymbolicValuesWithConcrete | ( | const SCEVHandle & | Sym, | |
| const SCEVHandle & | Conc, | |||
| ScalarEvolution & | SE | |||
| ) | const [inline, virtual] |
replaceSymbolicValuesWithConcrete - If this SCEV internally references the symbolic value "Sym", construct and return a new SCEV that produces the same value, but which uses the concrete value Conc instead of the symbolic value. If this SCEV does not use the symbolic value, it returns itself.
Implements llvm::SCEV.
Definition at line 563 of file ScalarEvolutionExpressions.h.
| const Type * SCEVUnknown::getType | ( | ) | const [virtual] |
getType - Return the LLVM type of this SCEV expression.
Implements llvm::SCEV.
Definition at line 414 of file ScalarEvolution.cpp.
References V.
| void SCEVUnknown::print | ( | std::ostream & | OS | ) | const [virtual] |
print - Print out the internal representation of this scalar to the specified stream. This should really only be used for debugging purposes.
Implements llvm::SCEV.
Definition at line 418 of file ScalarEvolution.cpp.
References V, and llvm::WriteAsOperand().
Referenced by print().
| void llvm::SCEVUnknown::print | ( | std::ostream * | OS | ) | const [inline] |
Reimplemented from llvm::SCEV.
Definition at line 573 of file ScalarEvolutionExpressions.h.
References print().
| static bool llvm::SCEVUnknown::classof | ( | const SCEVUnknown * | S | ) | [inline, static] |
Methods for support type inquiry through isa, cast, and dyn_cast:.
Definition at line 576 of file ScalarEvolutionExpressions.h.
| static bool llvm::SCEVUnknown::classof | ( | const SCEV * | S | ) | [inline, static] |
Definition at line 577 of file ScalarEvolutionExpressions.h.
References llvm::SCEV::getSCEVType(), and llvm::scUnknown.
Friends And Related Function Documentation
friend class ScalarEvolution [friend] |
Definition at line 548 of file ScalarEvolutionExpressions.h.
The documentation for this class was generated from the following files:
1.5.6