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Add support for casts

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2001-07-21 19:10:49 +00:00
parent 7e314d2042
commit f59bd5331e
1 changed files with 67 additions and 0 deletions
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67
lib/VMCore/ConstantFold.cpp
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@ -52,6 +52,41 @@ class TemplateRules : public ConstRules {
return SubClassName::LessThan((const ArgType *)V1, (const ArgType *)V2);
}
// Casting operators. ick
virtual ConstPoolBool *castToBool(const ConstPoolVal *V) const {
return SubClassName::CastToBool((const ArgType*)V);
}
virtual ConstPoolSInt *castToSByte(const ConstPoolVal *V) const {
return SubClassName::CastToSByte((const ArgType*)V);
}
virtual ConstPoolUInt *castToUByte(const ConstPoolVal *V) const {
return SubClassName::CastToUByte((const ArgType*)V);
}
virtual ConstPoolSInt *castToShort(const ConstPoolVal *V) const {
return SubClassName::CastToShort((const ArgType*)V);
}
virtual ConstPoolUInt *castToUShort(const ConstPoolVal *V) const {
return SubClassName::CastToUShort((const ArgType*)V);
}
virtual ConstPoolSInt *castToInt(const ConstPoolVal *V) const {
return SubClassName::CastToInt((const ArgType*)V);
}
virtual ConstPoolUInt *castToUInt(const ConstPoolVal *V) const {
return SubClassName::CastToUInt((const ArgType*)V);
}
virtual ConstPoolSInt *castToLong(const ConstPoolVal *V) const {
return SubClassName::CastToLong((const ArgType*)V);
}
virtual ConstPoolUInt *castToULong(const ConstPoolVal *V) const {
return SubClassName::CastToULong((const ArgType*)V);
}
virtual ConstPoolFP *castToFloat(const ConstPoolVal *V) const {
return SubClassName::CastToFloat((const ArgType*)V);
}
virtual ConstPoolFP *castToDouble(const ConstPoolVal *V) const {
return SubClassName::CastToDouble((const ArgType*)V);
}
//===--------------------------------------------------------------------===//
// Default "noop" implementations
//===--------------------------------------------------------------------===//
@ -70,6 +105,19 @@ class TemplateRules : public ConstRules {
inline static ConstPoolBool *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; }
};
@ -156,6 +204,25 @@ struct DirectRules
bool Result = (BuiltinType)V1->getValue() < (BuiltinType)V2->getValue();
return new ConstPoolBool(Result);
}
// 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)
#undef DEF_CAST
};
//===----------------------------------------------------------------------===//