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Implement constant folding of casts from boolean constants to other values
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7812 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -344,6 +344,25 @@ struct BoolRules : public TemplateRules<ConstantBool, BoolRules> {
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static Constant *Xor(const ConstantBool *V1, const ConstantBool *V2) {
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return ConstantBool::get(V1->getValue() ^ V2->getValue());
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}
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// Casting operators. ick
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#define DEF_CAST(TYPE, CLASS, CTYPE) \
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static CLASS *CastTo##TYPE (const ConstantBool *V) { \
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return CLASS::get(Type::TYPE##Ty, (CTYPE)(bool)V->getValue()); \
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}
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DEF_CAST(Bool , ConstantBool, bool)
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DEF_CAST(SByte , ConstantSInt, signed char)
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DEF_CAST(UByte , ConstantUInt, unsigned char)
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DEF_CAST(Short , ConstantSInt, signed short)
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DEF_CAST(UShort, ConstantUInt, unsigned short)
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DEF_CAST(Int , ConstantSInt, signed int)
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DEF_CAST(UInt , ConstantUInt, unsigned int)
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DEF_CAST(Long , ConstantSInt, int64_t)
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DEF_CAST(ULong , ConstantUInt, uint64_t)
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DEF_CAST(Float , ConstantFP , float)
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DEF_CAST(Double, ConstantFP , double)
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#undef DEF_CAST
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};
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