//
//===----------------------------------------------------------------------===//
-#include "llvm/Optimizations/ConstantHandling.h"
+#include "llvm/Transforms/Scalar/ConstantHandling.h"
-namespace opt {
+AnnotationID ConstRules::AID(AnnotationManager::getID("opt::ConstRules",
+ &ConstRules::find));
//===----------------------------------------------------------------------===//
// TemplateRules Class
// Redirecting functions that cast to the appropriate types
//===--------------------------------------------------------------------===//
- virtual ConstPoolVal *not(const ConstPoolVal *V) const {
+ virtual Constant *op_not(const Constant *V) const {
return SubClassName::Not((const ArgType *)V);
}
- virtual ConstPoolVal *add(const ConstPoolVal *V1,
- const ConstPoolVal *V2) const {
+ virtual Constant *add(const Constant *V1,
+ const Constant *V2) const {
return SubClassName::Add((const ArgType *)V1, (const ArgType *)V2);
}
- virtual ConstPoolVal *sub(const ConstPoolVal *V1,
- const ConstPoolVal *V2) const {
+ virtual Constant *sub(const Constant *V1,
+ const Constant *V2) const {
return SubClassName::Sub((const ArgType *)V1, (const ArgType *)V2);
}
- virtual ConstPoolVal *mul(const ConstPoolVal *V1,
- const ConstPoolVal *V2) const {
+ virtual Constant *mul(const Constant *V1,
+ const Constant *V2) const {
return SubClassName::Mul((const ArgType *)V1, (const ArgType *)V2);
}
- virtual ConstPoolBool *lessthan(const ConstPoolVal *V1,
- const ConstPoolVal *V2) const {
+ virtual ConstantBool *lessthan(const Constant *V1,
+ const Constant *V2) const {
return SubClassName::LessThan((const ArgType *)V1, (const ArgType *)V2);
}
// Casting operators. ick
- virtual ConstPoolBool *castToBool(const ConstPoolVal *V) const {
+ virtual ConstantBool *castToBool(const Constant *V) const {
return SubClassName::CastToBool((const ArgType*)V);
}
- virtual ConstPoolSInt *castToSByte(const ConstPoolVal *V) const {
+ virtual ConstantSInt *castToSByte(const Constant *V) const {
return SubClassName::CastToSByte((const ArgType*)V);
}
- virtual ConstPoolUInt *castToUByte(const ConstPoolVal *V) const {
+ virtual ConstantUInt *castToUByte(const Constant *V) const {
return SubClassName::CastToUByte((const ArgType*)V);
}
- virtual ConstPoolSInt *castToShort(const ConstPoolVal *V) const {
+ virtual ConstantSInt *castToShort(const Constant *V) const {
return SubClassName::CastToShort((const ArgType*)V);
}
- virtual ConstPoolUInt *castToUShort(const ConstPoolVal *V) const {
+ virtual ConstantUInt *castToUShort(const Constant *V) const {
return SubClassName::CastToUShort((const ArgType*)V);
}
- virtual ConstPoolSInt *castToInt(const ConstPoolVal *V) const {
+ virtual ConstantSInt *castToInt(const Constant *V) const {
return SubClassName::CastToInt((const ArgType*)V);
}
- virtual ConstPoolUInt *castToUInt(const ConstPoolVal *V) const {
+ virtual ConstantUInt *castToUInt(const Constant *V) const {
return SubClassName::CastToUInt((const ArgType*)V);
}
- virtual ConstPoolSInt *castToLong(const ConstPoolVal *V) const {
+ virtual ConstantSInt *castToLong(const Constant *V) const {
return SubClassName::CastToLong((const ArgType*)V);
}
- virtual ConstPoolUInt *castToULong(const ConstPoolVal *V) const {
+ virtual ConstantUInt *castToULong(const Constant *V) const {
return SubClassName::CastToULong((const ArgType*)V);
}
- virtual ConstPoolFP *castToFloat(const ConstPoolVal *V) const {
+ virtual ConstantFP *castToFloat(const Constant *V) const {
return SubClassName::CastToFloat((const ArgType*)V);
}
- virtual ConstPoolFP *castToDouble(const ConstPoolVal *V) const {
+ virtual ConstantFP *castToDouble(const Constant *V) const {
return SubClassName::CastToDouble((const ArgType*)V);
}
+ virtual ConstantPointer *castToPointer(const Constant *V,
+ const PointerType *Ty) const {
+ return SubClassName::CastToPointer((const ArgType*)V, Ty);
+ }
//===--------------------------------------------------------------------===//
// Default "noop" implementations
//===--------------------------------------------------------------------===//
- inline static ConstPoolVal *Not(const ArgType *V) { return 0; }
+ inline static Constant *Not(const ArgType *V) { return 0; }
- inline static ConstPoolVal *Add(const ArgType *V1, const ArgType *V2) {
+ inline static Constant *Add(const ArgType *V1, const ArgType *V2) {
return 0;
}
- inline static ConstPoolVal *Sub(const ArgType *V1, const ArgType *V2) {
+ inline static Constant *Sub(const ArgType *V1, const ArgType *V2) {
return 0;
}
- inline static ConstPoolVal *Mul(const ArgType *V1, const ArgType *V2) {
+ inline static Constant *Mul(const ArgType *V1, const ArgType *V2) {
return 0;
}
- inline static ConstPoolBool *LessThan(const ArgType *V1, const ArgType *V2) {
+ inline static ConstantBool *LessThan(const ArgType *V1, const ArgType *V2) {
return 0;
}
// Casting operators. ick
- inline static ConstPoolBool *CastToBool (const ConstPoolVal *V) { return 0; }
- inline static ConstPoolSInt *CastToSByte (const ConstPoolVal *V) { return 0; }
- inline static ConstPoolUInt *CastToUByte (const ConstPoolVal *V) { return 0; }
- inline static ConstPoolSInt *CastToShort (const ConstPoolVal *V) { return 0; }
- inline static ConstPoolUInt *CastToUShort(const ConstPoolVal *V) { return 0; }
- inline static ConstPoolSInt *CastToInt (const ConstPoolVal *V) { return 0; }
- inline static ConstPoolUInt *CastToUInt (const ConstPoolVal *V) { return 0; }
- inline static ConstPoolSInt *CastToLong (const ConstPoolVal *V) { return 0; }
- inline static ConstPoolUInt *CastToULong (const ConstPoolVal *V) { return 0; }
- inline static ConstPoolFP *CastToFloat (const ConstPoolVal *V) { return 0; }
- inline static ConstPoolFP *CastToDouble(const ConstPoolVal *V) { return 0; }
+ inline static ConstantBool *CastToBool (const Constant *V) { return 0; }
+ inline static ConstantSInt *CastToSByte (const Constant *V) { return 0; }
+ inline static ConstantUInt *CastToUByte (const Constant *V) { return 0; }
+ inline static ConstantSInt *CastToShort (const Constant *V) { return 0; }
+ inline static ConstantUInt *CastToUShort(const Constant *V) { return 0; }
+ inline static ConstantSInt *CastToInt (const Constant *V) { return 0; }
+ inline static ConstantUInt *CastToUInt (const Constant *V) { return 0; }
+ inline static ConstantSInt *CastToLong (const Constant *V) { return 0; }
+ inline static ConstantUInt *CastToULong (const Constant *V) { return 0; }
+ inline static ConstantFP *CastToFloat (const Constant *V) { return 0; }
+ inline static ConstantFP *CastToDouble(const Constant *V) { return 0; }
+ inline static ConstantPointer *CastToPointer(const Constant *,
+ const PointerType *) {return 0;}
};
//
// EmptyRules provides a concrete base class of ConstRules that does nothing
//
-static // EmptyInst is static
-struct EmptyRules : public TemplateRules<ConstPoolVal, EmptyRules> {
-} EmptyInst;
+struct EmptyRules : public TemplateRules<Constant, EmptyRules> {
+};
//
// BoolRules provides a concrete base class of ConstRules for the 'bool' type.
//
-static // BoolTyInst is static...
-struct BoolRules : public TemplateRules<ConstPoolBool, BoolRules> {
+struct BoolRules : public TemplateRules<ConstantBool, BoolRules> {
+
+ inline static Constant *Not(const ConstantBool *V) {
+ return ConstantBool::get(!V->getValue());
+ }
- inline static ConstPoolVal *Not(const ConstPoolBool *V) {
- return new ConstPoolBool(!V->getValue());
+ inline static Constant *Or(const ConstantBool *V1,
+ const ConstantBool *V2) {
+ return ConstantBool::get(V1->getValue() | V2->getValue());
}
- inline static ConstPoolVal *Or(const ConstPoolBool *V1,
- const ConstPoolBool *V2) {
- bool Result = V1->getValue() | V2->getValue();
- return new ConstPoolBool(Result);
+ inline static Constant *And(const ConstantBool *V1,
+ const ConstantBool *V2) {
+ return ConstantBool::get(V1->getValue() & V2->getValue());
+ }
+};
+
+
+//===----------------------------------------------------------------------===//
+// PointerRules Class
+//===----------------------------------------------------------------------===//
+//
+// PointerRules provides a concrete base class of ConstRules for pointer types
+//
+struct PointerRules : public TemplateRules<ConstantPointer, PointerRules> {
+ inline static ConstantBool *CastToBool (const Constant *V) {
+ if (V->isNullValue()) return ConstantBool::False;
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstantSInt *CastToSByte (const Constant *V) {
+ if (V->isNullValue()) return ConstantSInt::get(Type::SByteTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstantUInt *CastToUByte (const Constant *V) {
+ if (V->isNullValue()) return ConstantUInt::get(Type::UByteTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstantSInt *CastToShort (const Constant *V) {
+ if (V->isNullValue()) return ConstantSInt::get(Type::ShortTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstantUInt *CastToUShort(const Constant *V) {
+ if (V->isNullValue()) return ConstantUInt::get(Type::UShortTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstantSInt *CastToInt (const Constant *V) {
+ if (V->isNullValue()) return ConstantSInt::get(Type::IntTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstantUInt *CastToUInt (const Constant *V) {
+ if (V->isNullValue()) return ConstantUInt::get(Type::UIntTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstantSInt *CastToLong (const Constant *V) {
+ if (V->isNullValue()) return ConstantSInt::get(Type::LongTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstantUInt *CastToULong (const Constant *V) {
+ if (V->isNullValue()) return ConstantUInt::get(Type::ULongTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstantFP *CastToFloat (const Constant *V) {
+ if (V->isNullValue()) return ConstantFP::get(Type::FloatTy, 0);
+ return 0; // Can't const prop other types of pointers
+ }
+ inline static ConstantFP *CastToDouble(const Constant *V) {
+ if (V->isNullValue()) return ConstantFP::get(Type::DoubleTy, 0);
+ return 0; // Can't const prop other types of pointers
}
- inline static ConstPoolVal *And(const ConstPoolBool *V1,
- const ConstPoolBool *V2) {
- bool Result = V1->getValue() & V2->getValue();
- return new ConstPoolBool(Result);
+ inline static ConstantPointer *CastToPointer(const ConstantPointer *V,
+ const PointerType *PTy) {
+ if (V->isNullValue())
+ return ConstantPointerNull::get(PTy);
+ return 0; // Can't const prop other types of pointers
}
-} BoolTyInst;
+};
//===----------------------------------------------------------------------===//
// different types. This allows the C++ compiler to automatically generate our
// constant handling operations in a typesafe and accurate manner.
//
-template<class ConstPoolClass, class BuiltinType, const Type **Ty>
+template<class ConstantClass, class BuiltinType, Type **Ty>
struct DirectRules
- : public TemplateRules<ConstPoolClass,
- DirectRules<ConstPoolClass, BuiltinType, Ty> > {
+ : public TemplateRules<ConstantClass,
+ DirectRules<ConstantClass, BuiltinType, Ty> > {
- inline static ConstPoolVal *Not(const ConstPoolClass *V) {
- return new ConstPoolClass(*Ty, !(BuiltinType)V->getValue());;
+ inline static Constant *Not(const ConstantClass *V) {
+ return ConstantClass::get(*Ty, !(BuiltinType)V->getValue());;
}
- inline static ConstPoolVal *Add(const ConstPoolClass *V1,
- const ConstPoolClass *V2) {
+ inline static Constant *Add(const ConstantClass *V1,
+ const ConstantClass *V2) {
BuiltinType Result = (BuiltinType)V1->getValue() +
(BuiltinType)V2->getValue();
- return new ConstPoolClass(*Ty, Result);
+ return ConstantClass::get(*Ty, Result);
}
- inline static ConstPoolVal *Sub(const ConstPoolClass *V1,
- const ConstPoolClass *V2) {
+ inline static Constant *Sub(const ConstantClass *V1,
+ const ConstantClass *V2) {
BuiltinType Result = (BuiltinType)V1->getValue() -
(BuiltinType)V2->getValue();
- return new ConstPoolClass(*Ty, Result);
+ return ConstantClass::get(*Ty, Result);
}
- inline static ConstPoolVal *Mul(const ConstPoolClass *V1,
- const ConstPoolClass *V2) {
+ inline static Constant *Mul(const ConstantClass *V1,
+ const ConstantClass *V2) {
BuiltinType Result = (BuiltinType)V1->getValue() *
(BuiltinType)V2->getValue();
- return new ConstPoolClass(*Ty, Result);
+ return ConstantClass::get(*Ty, Result);
}
- inline static ConstPoolBool *LessThan(const ConstPoolClass *V1,
- const ConstPoolClass *V2) {
+ inline static ConstantBool *LessThan(const ConstantClass *V1,
+ const ConstantClass *V2) {
bool Result = (BuiltinType)V1->getValue() < (BuiltinType)V2->getValue();
- return new ConstPoolBool(Result);
+ return ConstantBool::get(Result);
}
+ inline static ConstantPointer *CastToPointer(const ConstantClass *V,
+ const PointerType *PTy) {
+ if (V->isNullValue()) // Is it a FP or Integral null value?
+ return ConstantPointerNull::get(PTy);
+ return 0; // Can't const prop other types of pointers
+ }
+
// Casting operators. ick
#define DEF_CAST(TYPE, CLASS, CTYPE) \
- inline static CLASS *CastTo##TYPE (const ConstPoolClass *V) { \
- return new CLASS(Type::TYPE##Ty, (CTYPE)(BuiltinType)V->getValue()); \
- }
-
- DEF_CAST(Bool , ConstPoolBool, bool)
- DEF_CAST(SByte , ConstPoolSInt, signed char)
- DEF_CAST(UByte , ConstPoolUInt, unsigned char)
- DEF_CAST(Short , ConstPoolSInt, signed short)
- DEF_CAST(UShort, ConstPoolUInt, unsigned short)
- DEF_CAST(Int , ConstPoolSInt, signed int)
- DEF_CAST(UInt , ConstPoolUInt, unsigned int)
- DEF_CAST(Long , ConstPoolSInt, int64_t)
- DEF_CAST(ULong , ConstPoolUInt, uint64_t)
- DEF_CAST(Float , ConstPoolFP , float)
- DEF_CAST(Double, ConstPoolFP , double)
+ inline static CLASS *CastTo##TYPE (const ConstantClass *V) { \
+ return CLASS::get(Type::TYPE##Ty, (CTYPE)(BuiltinType)V->getValue()); \
+ }
+
+ DEF_CAST(Bool , ConstantBool, bool)
+ DEF_CAST(SByte , ConstantSInt, signed char)
+ DEF_CAST(UByte , ConstantUInt, unsigned char)
+ DEF_CAST(Short , ConstantSInt, signed short)
+ DEF_CAST(UShort, ConstantUInt, unsigned short)
+ DEF_CAST(Int , ConstantSInt, signed int)
+ DEF_CAST(UInt , ConstantUInt, unsigned int)
+ DEF_CAST(Long , ConstantSInt, int64_t)
+ DEF_CAST(ULong , ConstantUInt, uint64_t)
+ DEF_CAST(Float , ConstantFP , float)
+ DEF_CAST(Double, ConstantFP , double)
#undef DEF_CAST
};
// code. Thank goodness C++ compilers are great at stomping out layers of
// templates... can you imagine having to do this all by hand? (/me is lazy :)
//
-static DirectRules<ConstPoolSInt, signed char , &Type::SByteTy> SByteTyInst;
-static DirectRules<ConstPoolUInt, unsigned char , &Type::UByteTy> UByteTyInst;
-static DirectRules<ConstPoolSInt, signed short, &Type::ShortTy> ShortTyInst;
-static DirectRules<ConstPoolUInt, unsigned short, &Type::UShortTy> UShortTyInst;
-static DirectRules<ConstPoolSInt, signed int , &Type::IntTy> IntTyInst;
-static DirectRules<ConstPoolUInt, unsigned int , &Type::UIntTy> UIntTyInst;
-static DirectRules<ConstPoolSInt, int64_t , &Type::LongTy> LongTyInst;
-static DirectRules<ConstPoolUInt, uint64_t , &Type::ULongTy> ULongTyInst;
-static DirectRules<ConstPoolFP , float , &Type::FloatTy> FloatTyInst;
-static DirectRules<ConstPoolFP , double , &Type::DoubleTy> DoubleTyInst;
-
// ConstRules::find - Return the constant rules that take care of the specified
-// type. Note that this is cached in the Type value itself, so switch statement
-// is only hit at most once per type.
+// type.
//
-const ConstRules *ConstRules::find(const Type *Ty) {
- const ConstRules *Result;
+Annotation *ConstRules::find(AnnotationID AID, const Annotable *TyA, void *) {
+ assert(AID == ConstRules::AID && "Bad annotation for factory!");
+ const Type *Ty = cast<Type>((const Value*)TyA);
+
switch (Ty->getPrimitiveID()) {
- case Type::BoolTyID: Result = &BoolTyInst; break;
- case Type::SByteTyID: Result = &SByteTyInst; break;
- case Type::UByteTyID: Result = &UByteTyInst; break;
- case Type::ShortTyID: Result = &ShortTyInst; break;
- case Type::UShortTyID: Result = &UShortTyInst; break;
- case Type::IntTyID: Result = &IntTyInst; break;
- case Type::UIntTyID: Result = &UIntTyInst; break;
- case Type::LongTyID: Result = &LongTyInst; break;
- case Type::ULongTyID: Result = &ULongTyInst; break;
- case Type::FloatTyID: Result = &FloatTyInst; break;
- case Type::DoubleTyID: Result = &DoubleTyInst; break;
- default: Result = &EmptyInst; break;
- }
-
- Ty->setConstRules(Result); // Cache the value for future short circuiting!
- return Result;
+ case Type::BoolTyID: return new BoolRules();
+ case Type::PointerTyID: return new PointerRules();
+ case Type::SByteTyID:
+ return new DirectRules<ConstantSInt, signed char , &Type::SByteTy>();
+ case Type::UByteTyID:
+ return new DirectRules<ConstantUInt, unsigned char , &Type::UByteTy>();
+ case Type::ShortTyID:
+ return new DirectRules<ConstantSInt, signed short, &Type::ShortTy>();
+ case Type::UShortTyID:
+ return new DirectRules<ConstantUInt, unsigned short, &Type::UShortTy>();
+ case Type::IntTyID:
+ return new DirectRules<ConstantSInt, signed int , &Type::IntTy>();
+ case Type::UIntTyID:
+ return new DirectRules<ConstantUInt, unsigned int , &Type::UIntTy>();
+ case Type::LongTyID:
+ return new DirectRules<ConstantSInt, int64_t , &Type::LongTy>();
+ case Type::ULongTyID:
+ return new DirectRules<ConstantUInt, uint64_t , &Type::ULongTy>();
+ case Type::FloatTyID:
+ return new DirectRules<ConstantFP , float , &Type::FloatTy>();
+ case Type::DoubleTyID:
+ return new DirectRules<ConstantFP , double , &Type::DoubleTy>();
+ default:
+ return new EmptyRules();
+ }
}
-
-
-} // End namespace opt
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