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Remove getValueRange from SCEV. It wasn't doing anything there anyways, and a

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more complete version is now available from the LoopVR pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53269 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2008-07-09 03:21:51 +00:00
parent 0af8225088
commit b0b046848f
3 changed files with 0 additions and 51 deletions
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4
include/llvm/Analysis/ScalarEvolution.h
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@ -59,10 +59,6 @@ namespace llvm {
unsigned getSCEVType() const { return SCEVType; }
/// getValueRange - Return the tightest constant bounds that this value is
/// known to have. This method is only valid on integer SCEV objects.
virtual ConstantRange getValueRange() const;
/// isLoopInvariant - Return true if the value of this SCEV is unchanging in
/// the specified loop.
virtual bool isLoopInvariant(const Loop *L) const = 0;

16
include/llvm/Analysis/ScalarEvolutionExpressions.h
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@ -42,10 +42,6 @@ namespace llvm {
public:
ConstantInt *getValue() const { return V; }
/// getValueRange - Return the tightest constant bounds that this value is
/// known to have. This method is only valid on integer SCEV objects.
virtual ConstantRange getValueRange() const;
virtual bool isLoopInvariant(const Loop *L) const {
return true;
}
@ -104,10 +100,6 @@ namespace llvm {
return SE.getTruncateExpr(H, Ty);
}
/// getValueRange - Return the tightest constant bounds that this value is
/// known to have. This method is only valid on integer SCEV objects.
virtual ConstantRange getValueRange() const;
virtual void print(std::ostream &OS) const;
void print(std::ostream *OS) const { if (OS) print(*OS); }
@ -141,10 +133,6 @@ namespace llvm {
return Op->hasComputableLoopEvolution(L);
}
/// getValueRange - Return the tightest constant bounds that this value is
/// known to have. This method is only valid on integer SCEV objects.
virtual ConstantRange getValueRange() const;
SCEVHandle replaceSymbolicValuesWithConcrete(const SCEVHandle &Sym,
const SCEVHandle &Conc,
ScalarEvolution &SE) const {
@ -187,10 +175,6 @@ namespace llvm {
return Op->hasComputableLoopEvolution(L);
}
/// getValueRange - Return the tightest constant bounds that this value is
/// known to have. This method is only valid on integer SCEV objects.
virtual ConstantRange getValueRange() const;
SCEVHandle replaceSymbolicValuesWithConcrete(const SCEVHandle &Sym,
const SCEVHandle &Conc,
ScalarEvolution &SE) const {

31
lib/Analysis/ScalarEvolution.cpp
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@ -117,15 +117,6 @@ void SCEV::dump() const {
print(cerr);
}
/// getValueRange - Return the tightest constant bounds that this value is
/// known to have. This method is only valid on integer SCEV objects.
ConstantRange SCEV::getValueRange() const {
const Type *Ty = getType();
assert(Ty->isInteger() && "Can't get range for a non-integer SCEV!");
// Default to a full range if no better information is available.
return ConstantRange(getBitWidth());
}
uint32_t SCEV::getBitWidth() const {
if (const IntegerType* ITy = dyn_cast<IntegerType>(getType()))
return ITy->getBitWidth();
@ -192,10 +183,6 @@ SCEVHandle ScalarEvolution::getConstant(const APInt& Val) {
return getConstant(ConstantInt::get(Val));
}
ConstantRange SCEVConstant::getValueRange() const {
return ConstantRange(V->getValue());
}
const Type *SCEVConstant::getType() const { return V->getType(); }
void SCEVConstant::print(std::ostream &OS) const {
@ -220,10 +207,6 @@ SCEVTruncateExpr::~SCEVTruncateExpr() {
SCEVTruncates->erase(std::make_pair(Op, Ty));
}
ConstantRange SCEVTruncateExpr::getValueRange() const {
return getOperand()->getValueRange().truncate(getBitWidth());
}
void SCEVTruncateExpr::print(std::ostream &OS) const {
OS << "(truncate " << *Op << " to " << *Ty << ")";
}
@ -246,10 +229,6 @@ SCEVZeroExtendExpr::~SCEVZeroExtendExpr() {
SCEVZeroExtends->erase(std::make_pair(Op, Ty));
}
ConstantRange SCEVZeroExtendExpr::getValueRange() const {
return getOperand()->getValueRange().zeroExtend(getBitWidth());
}
void SCEVZeroExtendExpr::print(std::ostream &OS) const {
OS << "(zeroextend " << *Op << " to " << *Ty << ")";
}
@ -272,10 +251,6 @@ SCEVSignExtendExpr::~SCEVSignExtendExpr() {
SCEVSignExtends->erase(std::make_pair(Op, Ty));
}
ConstantRange SCEVSignExtendExpr::getValueRange() const {
return getOperand()->getValueRange().signExtend(getBitWidth());
}
void SCEVSignExtendExpr::print(std::ostream &OS) const {
OS << "(signextend " << *Op << " to " << *Ty << ")";
}
@ -2906,12 +2881,6 @@ void ScalarEvolution::print(std::ostream &OS, const Module* ) const {
SV->print(OS);
OS << "\t\t";
if ((*I).getType()->isInteger()) {
ConstantRange Bounds = SV->getValueRange();
if (!Bounds.isFullSet())
OS << "Bounds: " << Bounds << " ";
}
if (const Loop *L = LI.getLoopFor((*I).getParent())) {
OS << "Exits: ";
SCEVHandle ExitValue = getSCEVAtScope(&*I, L->getParentLoop());