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Fix pre-POWER8_VECTOR bugs in pcmp_lt and pnegate and reactivate psqrt.

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(cherry picked from commit 4a58f30aa083d2f5753465a36730ca7734b483be)
This commit is contained in:
Chip Kerchner 2023-01-31 19:40:24 +00:00 committed by C. Antonio Sanchez
parent 3adc78e39c
commit 414f0a1756
1 changed files with 24 additions and 0 deletions
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24
Eigen/src/Core/arch/AltiVec/MathFunctions.h
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@ -69,6 +69,30 @@ Packet2d psqrt<Packet2d>(const Packet2d& x)
return vec_sqrt(x);
}
#if !EIGEN_COMP_CLANG
template<> EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
Packet4f prsqrt<Packet4f>(const Packet4f& x)
{
return pset1<Packet4f>(1.0f) / psqrt<Packet4f>(x);
// vec_rsqrt returns different results from the generic version
// return vec_rsqrt(x);
}
template<> EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
Packet2d prsqrt<Packet2d>(const Packet2d& x)
{
return pset1<Packet2d>(1.0) / psqrt<Packet2d>(x);
// vec_rsqrt returns different results from the generic version
// return vec_rsqrt(x);
}
template<> EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
Packet2d patan<Packet2d>(const Packet2d& _x)
{
return patan_double(_x);
}
#endif
template<> EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
Packet4f prsqrt<Packet4f>(const Packet4f& x)
{