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[APFloat] Added make{Zero,Inf} methods and implemented get{Zero,Inf} on top of them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184712 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -211,14 +211,18 @@ public:
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///
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/// \param Negative True iff the number should be negative.
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static APFloat getZero(const fltSemantics &Sem, bool Negative = false) {
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return APFloat(Sem, fcZero, Negative);
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APFloat Val(Sem, uninitialized);
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Val.makeZero(Negative);
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return Val;
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}
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/// Factory for Positive and Negative Infinity.
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///
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/// \param Negative True iff the number should be negative.
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static APFloat getInf(const fltSemantics &Sem, bool Negative = false) {
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return APFloat(Sem, fcInfinity, Negative);
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APFloat Val(Sem, uninitialized);
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Val.makeInf(Negative);
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return Val;
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}
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/// Factory for QNaN values.
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@ -498,6 +502,8 @@ private:
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void makeNaN(bool SNaN = false, bool Neg = false, const APInt *fill = 0);
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static APFloat makeNaN(const fltSemantics &Sem, bool SNaN, bool Negative,
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const APInt *fill);
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void makeInf(bool Neg = false);
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void makeZero(bool Neg = false);
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/// @}
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@ -3827,3 +3827,19 @@ APFloat::opStatus APFloat::next(bool nextDown) {
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return result;
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}
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void
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APFloat::makeInf(bool Negative) {
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category = fcInfinity;
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sign = Negative;
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exponent = semantics->maxExponent + 1;
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APInt::tcSet(significandParts(), 0, partCount());
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}
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void
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APFloat::makeZero(bool Negative) {
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category = fcZero;
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sign = Negative;
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exponent = semantics->minExponent-1;
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APInt::tcSet(significandParts(), 0, partCount());
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}
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