diff options
Diffstat (limited to 'Eigen/src/Core/arch/NEON/PacketMath.h')
| -rw-r--r-- | Eigen/src/Core/arch/NEON/PacketMath.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/Eigen/src/Core/arch/NEON/PacketMath.h b/Eigen/src/Core/arch/NEON/PacketMath.h index 2c4b5bfff..c2fdcbade 100644 --- a/Eigen/src/Core/arch/NEON/PacketMath.h +++ b/Eigen/src/Core/arch/NEON/PacketMath.h @@ -137,7 +137,7 @@ struct packet_traits<float> : default_packet_traits HasBlend = 0, HasDiv = 1, - HasFloor = 1, + HasFloor = 0, HasSin = EIGEN_FAST_MATH, HasCos = EIGEN_FAST_MATH, @@ -1397,6 +1397,9 @@ template<> EIGEN_STRONG_INLINE Packet2f pcmp_lt_or_nan<Packet2f>(const Packet2f& template<> EIGEN_STRONG_INLINE Packet4f pcmp_lt_or_nan<Packet4f>(const Packet4f& a, const Packet4f& b) { return vreinterpretq_f32_u32(vmvnq_u32(vcgeq_f32(a,b))); } +// WARNING: this pfloor implementation makes sense for inputs that fit in +// signed int32 integers (up to ~2.14e9), hence this is currently only used +// by pexp and not exposed through HasFloor. template<> EIGEN_STRONG_INLINE Packet2f pfloor<Packet2f>(const Packet2f& a) { const Packet2f cst_1 = pset1<Packet2f>(1.0f); @@ -3269,7 +3272,7 @@ template<> struct packet_traits<double> : default_packet_traits HasBlend = 0, HasDiv = 1, - HasFloor = 1, + HasFloor = 0, HasSin = 0, HasCos = 0, @@ -3329,6 +3332,9 @@ template<> EIGEN_STRONG_INLINE Packet2d pmin<Packet2d>(const Packet2d& a, const template<> EIGEN_STRONG_INLINE Packet2d pmax<Packet2d>(const Packet2d& a, const Packet2d& b) { return vmaxq_f64(a,b); } +// WARNING: this pfloor implementation makes sense for inputs that fit in +// signed int64 integers (up to ~9.22e18), hence this is currently only used +// by pexp and not exposed through HasFloor. template<> EIGEN_STRONG_INLINE Packet2d pfloor<Packet2d>(const Packet2d& a) { const Packet2d cst_1 = pset1<Packet2d>(1.0); |