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bug #1674: disable GCC's unsafe-math-optimizations in sin/cos vectorization (results are completely wrong otherwise)

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Gael Guennebaud 2019-02-03 08:54:47 +01:00
parent e7b481ea74
commit 871e2e5339
1 changed files with 3 additions and 0 deletions
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3
Eigen/src/Core/arch/Default/GenericPacketMathFunctions.h
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@ -319,6 +319,9 @@ inline float trig_reduce_huge (float xf, int *quadrant)
template<bool ComputeSine,typename Packet> template<bool ComputeSine,typename Packet>
EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
EIGEN_UNUSED EIGEN_UNUSED
#if EIGEN_GNUC_AT_LEAST(4,4)
__attribute__((optimize("-fno-unsafe-math-optimizations")))
#endif
Packet psincos_float(const Packet& _x) Packet psincos_float(const Packet& _x)
{ {
typedef typename unpacket_traits<Packet>::integer_packet PacketI; typedef typename unpacket_traits<Packet>::integer_packet PacketI;