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make the number of registers easier to configure per architectures

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Gael Guennebaud
2010-03-04 18:58:12 +01:00
parent 8ed1ef4469
commit ea8cad5151
3 changed files with 21 additions and 6 deletions
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8
Eigen/src/Core/util/BlasUtil.h
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@@ -130,14 +130,10 @@ struct ei_product_blocking_traits
typedef typename ei_packet_traits<Scalar>::type PacketType;
enum {
PacketSize = sizeof(PacketType)/sizeof(Scalar),
#if (defined __i386__)
HalfRegisterCount = 4,
#else
HalfRegisterCount = 8,
#endif
NumberOfRegisters = EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS,
// register block size along the N direction (must be either 2 or 4)
nr = HalfRegisterCount/2,
nr = NumberOfRegisters/4,
// register block size along the M direction (currently, this one cannot be modified)
mr = 2 * PacketSize,