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Add minnum / maxnum intrinsics

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These are named following the IEEE-754 names for these
functions, rather than the libm fmin / fmax to avoid
possible ambiguities. Some languages may implement something
resembling fmin / fmax which return NaN if either operand is
to propagate errors. These implement the IEEE-754 semantics
of returning the other operand if either is a NaN representing
missing data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220341 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault
2014-10-21 23:00:20 +00:00
parent cb3866e72e
commit 252134602f
14 changed files with 773 additions and 2 deletions
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12
include/llvm/IR/PatternMatch.h
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@@ -1228,6 +1228,18 @@ m_BSwap(const Opnd0 &Op0) {
return m_Intrinsic<Intrinsic::bswap>(Op0);
}
template<typename Opnd0, typename Opnd1>
inline typename m_Intrinsic_Ty<Opnd0, Opnd1>::Ty
m_FMin(const Opnd0 &Op0, const Opnd1 &Op1) {
return m_Intrinsic<Intrinsic::minnum>(Op0, Op1);
}
template<typename Opnd0, typename Opnd1>
inline typename m_Intrinsic_Ty<Opnd0, Opnd1>::Ty
m_FMax(const Opnd0 &Op0, const Opnd1 &Op1) {
return m_Intrinsic<Intrinsic::maxnum>(Op0, Op1);
}
} // end namespace PatternMatch
} // end namespace llvm