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[APFloat] scalbn - pass DoubleAPFloat arg as const-ref. NFCI.

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Avoid unnecessary copy and fix clang-tidy warning.
This commit is contained in:
Simon Pilgrim 2021-01-28 14:46:38 +00:00
parent 70ea15b889
commit 5169627c14
2 changed files with 3 additions and 2 deletions
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2
llvm/include/llvm/ADT/APFloat.h
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@ -688,7 +688,7 @@ public:
bool getExactInverse(APFloat *inv) const;
friend int ilogb(const DoubleAPFloat &Arg);
friend DoubleAPFloat scalbn(DoubleAPFloat X, int Exp, roundingMode);
friend DoubleAPFloat scalbn(const DoubleAPFloat &X, int Exp, roundingMode);
friend DoubleAPFloat frexp(const DoubleAPFloat &X, int &Exp, roundingMode);
friend hash_code hash_value(const DoubleAPFloat &Arg);
};

3
llvm/lib/Support/APFloat.cpp
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@ -4761,7 +4761,8 @@ bool DoubleAPFloat::getExactInverse(APFloat *inv) const {
return Ret;
}
DoubleAPFloat scalbn(DoubleAPFloat Arg, int Exp, APFloat::roundingMode RM) {
DoubleAPFloat scalbn(const DoubleAPFloat &Arg, int Exp,
APFloat::roundingMode RM) {
assert(Arg.Semantics == &semPPCDoubleDouble && "Unexpected Semantics");
return DoubleAPFloat(semPPCDoubleDouble, scalbn(Arg.Floats[0], Exp, RM),
scalbn(Arg.Floats[1], Exp, RM));