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-rw-r--r--include/llvm/Analysis/ScalarEvolutionExpressions.h145
1 files changed, 61 insertions, 84 deletions
diff --git a/include/llvm/Analysis/ScalarEvolutionExpressions.h b/include/llvm/Analysis/ScalarEvolutionExpressions.h
index 2842356..8be1a93 100644
--- a/include/llvm/Analysis/ScalarEvolutionExpressions.h
+++ b/include/llvm/Analysis/ScalarEvolutionExpressions.h
@@ -36,10 +36,8 @@ namespace llvm {
friend class ScalarEvolution;
ConstantInt *V;
- explicit SCEVConstant(ConstantInt *v, const ScalarEvolution* p) :
- SCEV(scConstant, p), V(v) {}
-
- virtual ~SCEVConstant();
+ explicit SCEVConstant(ConstantInt *v) :
+ SCEV(scConstant), V(v) {}
public:
ConstantInt *getValue() const { return V; }
@@ -53,8 +51,8 @@ namespace llvm {
virtual const Type *getType() const;
- SCEVHandle replaceSymbolicValuesWithConcrete(const SCEVHandle &Sym,
- const SCEVHandle &Conc,
+ const SCEV* replaceSymbolicValuesWithConcrete(const SCEV* Sym,
+ const SCEV* Conc,
ScalarEvolution &SE) const {
return this;
}
@@ -77,15 +75,13 @@ namespace llvm {
///
class SCEVCastExpr : public SCEV {
protected:
- SCEVHandle Op;
+ const SCEV* Op;
const Type *Ty;
- SCEVCastExpr(unsigned SCEVTy, const SCEVHandle &op, const Type *ty,
- const ScalarEvolution* p);
- virtual ~SCEVCastExpr();
+ SCEVCastExpr(unsigned SCEVTy, const SCEV* op, const Type *ty);
public:
- const SCEVHandle &getOperand() const { return Op; }
+ const SCEV* getOperand() const { return Op; }
virtual const Type *getType() const { return Ty; }
virtual bool isLoopInvariant(const Loop *L) const {
@@ -114,15 +110,13 @@ namespace llvm {
class SCEVTruncateExpr : public SCEVCastExpr {
friend class ScalarEvolution;
- SCEVTruncateExpr(const SCEVHandle &op, const Type *ty,
- const ScalarEvolution* p);
- virtual ~SCEVTruncateExpr();
+ SCEVTruncateExpr(const SCEV* op, const Type *ty);
public:
- SCEVHandle replaceSymbolicValuesWithConcrete(const SCEVHandle &Sym,
- const SCEVHandle &Conc,
+ const SCEV* replaceSymbolicValuesWithConcrete(const SCEV* Sym,
+ const SCEV* Conc,
ScalarEvolution &SE) const {
- SCEVHandle H = Op->replaceSymbolicValuesWithConcrete(Sym, Conc, SE);
+ const SCEV* H = Op->replaceSymbolicValuesWithConcrete(Sym, Conc, SE);
if (H == Op)
return this;
return SE.getTruncateExpr(H, Ty);
@@ -144,15 +138,13 @@ namespace llvm {
class SCEVZeroExtendExpr : public SCEVCastExpr {
friend class ScalarEvolution;
- SCEVZeroExtendExpr(const SCEVHandle &op, const Type *ty,
- const ScalarEvolution* p);
- virtual ~SCEVZeroExtendExpr();
+ SCEVZeroExtendExpr(const SCEV* op, const Type *ty);
public:
- SCEVHandle replaceSymbolicValuesWithConcrete(const SCEVHandle &Sym,
- const SCEVHandle &Conc,
+ const SCEV* replaceSymbolicValuesWithConcrete(const SCEV* Sym,
+ const SCEV* Conc,
ScalarEvolution &SE) const {
- SCEVHandle H = Op->replaceSymbolicValuesWithConcrete(Sym, Conc, SE);
+ const SCEV* H = Op->replaceSymbolicValuesWithConcrete(Sym, Conc, SE);
if (H == Op)
return this;
return SE.getZeroExtendExpr(H, Ty);
@@ -174,15 +166,13 @@ namespace llvm {
class SCEVSignExtendExpr : public SCEVCastExpr {
friend class ScalarEvolution;
- SCEVSignExtendExpr(const SCEVHandle &op, const Type *ty,
- const ScalarEvolution* p);
- virtual ~SCEVSignExtendExpr();
+ SCEVSignExtendExpr(const SCEV* op, const Type *ty);
public:
- SCEVHandle replaceSymbolicValuesWithConcrete(const SCEVHandle &Sym,
- const SCEVHandle &Conc,
+ const SCEV* replaceSymbolicValuesWithConcrete(const SCEV* Sym,
+ const SCEV* Conc,
ScalarEvolution &SE) const {
- SCEVHandle H = Op->replaceSymbolicValuesWithConcrete(Sym, Conc, SE);
+ const SCEV* H = Op->replaceSymbolicValuesWithConcrete(Sym, Conc, SE);
if (H == Op)
return this;
return SE.getSignExtendExpr(H, Ty);
@@ -204,22 +194,20 @@ namespace llvm {
///
class SCEVNAryExpr : public SCEV {
protected:
- SmallVector<SCEVHandle, 8> Operands;
+ SmallVector<const SCEV*, 8> Operands;
- SCEVNAryExpr(enum SCEVTypes T, const SmallVectorImpl<SCEVHandle> &ops,
- const ScalarEvolution* p)
- : SCEV(T, p), Operands(ops.begin(), ops.end()) {}
- virtual ~SCEVNAryExpr() {}
+ SCEVNAryExpr(enum SCEVTypes T, const SmallVectorImpl<const SCEV*> &ops)
+ : SCEV(T), Operands(ops.begin(), ops.end()) {}
public:
unsigned getNumOperands() const { return (unsigned)Operands.size(); }
- const SCEVHandle &getOperand(unsigned i) const {
+ const SCEV* getOperand(unsigned i) const {
assert(i < Operands.size() && "Operand index out of range!");
return Operands[i];
}
- const SmallVectorImpl<SCEVHandle> &getOperands() const { return Operands; }
- typedef SmallVectorImpl<SCEVHandle>::const_iterator op_iterator;
+ const SmallVectorImpl<const SCEV*> &getOperands() const { return Operands; }
+ typedef SmallVectorImpl<const SCEV*>::const_iterator op_iterator;
op_iterator op_begin() const { return Operands.begin(); }
op_iterator op_end() const { return Operands.end(); }
@@ -266,14 +254,12 @@ namespace llvm {
class SCEVCommutativeExpr : public SCEVNAryExpr {
protected:
SCEVCommutativeExpr(enum SCEVTypes T,
- const SmallVectorImpl<SCEVHandle> &ops,
- const ScalarEvolution* p)
- : SCEVNAryExpr(T, ops, p) {}
- ~SCEVCommutativeExpr();
+ const SmallVectorImpl<const SCEV*> &ops)
+ : SCEVNAryExpr(T, ops) {}
public:
- SCEVHandle replaceSymbolicValuesWithConcrete(const SCEVHandle &Sym,
- const SCEVHandle &Conc,
+ const SCEV* replaceSymbolicValuesWithConcrete(const SCEV* Sym,
+ const SCEV* Conc,
ScalarEvolution &SE) const;
virtual const char *getOperationStr() const = 0;
@@ -297,9 +283,8 @@ namespace llvm {
class SCEVAddExpr : public SCEVCommutativeExpr {
friend class ScalarEvolution;
- explicit SCEVAddExpr(const SmallVectorImpl<SCEVHandle> &ops,
- const ScalarEvolution* p)
- : SCEVCommutativeExpr(scAddExpr, ops, p) {
+ explicit SCEVAddExpr(const SmallVectorImpl<const SCEV*> &ops)
+ : SCEVCommutativeExpr(scAddExpr, ops) {
}
public:
@@ -318,9 +303,8 @@ namespace llvm {
class SCEVMulExpr : public SCEVCommutativeExpr {
friend class ScalarEvolution;
- explicit SCEVMulExpr(const SmallVectorImpl<SCEVHandle> &ops,
- const ScalarEvolution* p)
- : SCEVCommutativeExpr(scMulExpr, ops, p) {
+ explicit SCEVMulExpr(const SmallVectorImpl<const SCEV*> &ops)
+ : SCEVCommutativeExpr(scMulExpr, ops) {
}
public:
@@ -340,15 +324,14 @@ namespace llvm {
class SCEVUDivExpr : public SCEV {
friend class ScalarEvolution;
- SCEVHandle LHS, RHS;
- SCEVUDivExpr(const SCEVHandle &lhs, const SCEVHandle &rhs,
- const ScalarEvolution* p)
- : SCEV(scUDivExpr, p), LHS(lhs), RHS(rhs) {}
+ const SCEV* LHS;
+ const SCEV* RHS;
+ SCEVUDivExpr(const SCEV* lhs, const SCEV* rhs)
+ : SCEV(scUDivExpr), LHS(lhs), RHS(rhs) {}
- virtual ~SCEVUDivExpr();
public:
- const SCEVHandle &getLHS() const { return LHS; }
- const SCEVHandle &getRHS() const { return RHS; }
+ const SCEV* getLHS() const { return LHS; }
+ const SCEV* getRHS() const { return RHS; }
virtual bool isLoopInvariant(const Loop *L) const {
return LHS->isLoopInvariant(L) && RHS->isLoopInvariant(L);
@@ -359,11 +342,11 @@ namespace llvm {
RHS->hasComputableLoopEvolution(L);
}
- SCEVHandle replaceSymbolicValuesWithConcrete(const SCEVHandle &Sym,
- const SCEVHandle &Conc,
+ const SCEV* replaceSymbolicValuesWithConcrete(const SCEV* Sym,
+ const SCEV* Conc,
ScalarEvolution &SE) const {
- SCEVHandle L = LHS->replaceSymbolicValuesWithConcrete(Sym, Conc, SE);
- SCEVHandle R = RHS->replaceSymbolicValuesWithConcrete(Sym, Conc, SE);
+ const SCEV* L = LHS->replaceSymbolicValuesWithConcrete(Sym, Conc, SE);
+ const SCEV* R = RHS->replaceSymbolicValuesWithConcrete(Sym, Conc, SE);
if (L == LHS && R == RHS)
return this;
else
@@ -398,25 +381,23 @@ namespace llvm {
const Loop *L;
- SCEVAddRecExpr(const SmallVectorImpl<SCEVHandle> &ops, const Loop *l,
- const ScalarEvolution* p)
- : SCEVNAryExpr(scAddRecExpr, ops, p), L(l) {
+ SCEVAddRecExpr(const SmallVectorImpl<const SCEV*> &ops, const Loop *l)
+ : SCEVNAryExpr(scAddRecExpr, ops), L(l) {
for (size_t i = 0, e = Operands.size(); i != e; ++i)
assert(Operands[i]->isLoopInvariant(l) &&
"Operands of AddRec must be loop-invariant!");
}
- ~SCEVAddRecExpr();
public:
- const SCEVHandle &getStart() const { return Operands[0]; }
+ const SCEV* getStart() const { return Operands[0]; }
const Loop *getLoop() const { return L; }
/// getStepRecurrence - This method constructs and returns the recurrence
/// indicating how much this expression steps by. If this is a polynomial
/// of degree N, it returns a chrec of degree N-1.
- SCEVHandle getStepRecurrence(ScalarEvolution &SE) const {
+ const SCEV* getStepRecurrence(ScalarEvolution &SE) const {
if (isAffine()) return getOperand(1);
- return SE.getAddRecExpr(SmallVector<SCEVHandle, 3>(op_begin()+1,op_end()),
+ return SE.getAddRecExpr(SmallVector<const SCEV*, 3>(op_begin()+1,op_end()),
getLoop());
}
@@ -444,7 +425,7 @@ namespace llvm {
/// evaluateAtIteration - Return the value of this chain of recurrences at
/// the specified iteration number.
- SCEVHandle evaluateAtIteration(SCEVHandle It, ScalarEvolution &SE) const;
+ const SCEV* evaluateAtIteration(const SCEV* It, ScalarEvolution &SE) const;
/// getNumIterationsInRange - Return the number of iterations of this loop
/// that produce values in the specified constant range. Another way of
@@ -452,11 +433,11 @@ namespace llvm {
/// value is not in the condition, thus computing the exit count. If the
/// iteration count can't be computed, an instance of SCEVCouldNotCompute is
/// returned.
- SCEVHandle getNumIterationsInRange(ConstantRange Range,
+ const SCEV* getNumIterationsInRange(ConstantRange Range,
ScalarEvolution &SE) const;
- SCEVHandle replaceSymbolicValuesWithConcrete(const SCEVHandle &Sym,
- const SCEVHandle &Conc,
+ const SCEV* replaceSymbolicValuesWithConcrete(const SCEV* Sym,
+ const SCEV* Conc,
ScalarEvolution &SE) const;
virtual void print(raw_ostream &OS) const;
@@ -475,9 +456,8 @@ namespace llvm {
class SCEVSMaxExpr : public SCEVCommutativeExpr {
friend class ScalarEvolution;
- explicit SCEVSMaxExpr(const SmallVectorImpl<SCEVHandle> &ops,
- const ScalarEvolution* p)
- : SCEVCommutativeExpr(scSMaxExpr, ops, p) {
+ explicit SCEVSMaxExpr(const SmallVectorImpl<const SCEV*> &ops)
+ : SCEVCommutativeExpr(scSMaxExpr, ops) {
}
public:
@@ -497,9 +477,8 @@ namespace llvm {
class SCEVUMaxExpr : public SCEVCommutativeExpr {
friend class ScalarEvolution;
- explicit SCEVUMaxExpr(const SmallVectorImpl<SCEVHandle> &ops,
- const ScalarEvolution* p)
- : SCEVCommutativeExpr(scUMaxExpr, ops, p) {
+ explicit SCEVUMaxExpr(const SmallVectorImpl<const SCEV*> &ops)
+ : SCEVCommutativeExpr(scUMaxExpr, ops) {
}
public:
@@ -522,11 +501,9 @@ namespace llvm {
friend class ScalarEvolution;
Value *V;
- explicit SCEVUnknown(Value *v, const ScalarEvolution* p) :
- SCEV(scUnknown, p), V(v) {}
-
- protected:
- ~SCEVUnknown();
+ explicit SCEVUnknown(Value *v) :
+ SCEV(scUnknown), V(v) {}
+
public:
Value *getValue() const { return V; }
@@ -535,8 +512,8 @@ namespace llvm {
return false; // not computable
}
- SCEVHandle replaceSymbolicValuesWithConcrete(const SCEVHandle &Sym,
- const SCEVHandle &Conc,
+ const SCEV* replaceSymbolicValuesWithConcrete(const SCEV* Sym,
+ const SCEV* Conc,
ScalarEvolution &SE) const {
if (&*Sym == this) return Conc;
return this;
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