arch/generic/vec_reg.hh

6  * not be construed as granting a license to any other intellectual
52  * constant, it is defined as a template parameter.
59  *    calculated as sizeof(VecElem) * NumElems must match the size of the
62  *    references to particular bytes understood as a VecElem.
72  * member 'as' for VecRegT and the member 'laneView' for VecLaneT. Kindly
84  *    // Request source vector register to the execution context (const as it
87  *    // View it as a vector of floats (we could just specify the first
90  *    VecRegT<float, 8, true>& vsrc1 = vsrc1raw->as<float, 8>();
94  *    VecRegT<float, 8, true>& vsrc2 = vsrc2raw->as<float, 8>();
98  *    VecRegT<float, 8, false>& vdst = vdstraw->as<float, 8>();
109  *    // Request source vector register to the execution context (const as it
112  *    // View it as a lane of a vector of floats (we could just specify the
129  *    // There is no need to copy the value back into the exec context, as
166  * of VecRegT to view the container as a vector of NumElems elems of type
268  * portion through the method 'as
374      * Create a view of this container as a vector of VecElems with an
384     VecRegT<VecElem, NumElems, true> as() const
389                 "Viewing VecReg as something bigger than it is");
394     VecRegT<VecElem, NumElems, false> as()
399                 "Viewing VecReg as something bigger than it is");
426  * about the semantics of a, e.g., 32bit element, treating it as a signed or
443  * it is up to the ISA to interpret those bits as a float, or as an uint.
448  *  When data is passed and is susceptible to being copied, use LaneData, as
450  *  When data is passed as references (const or not), use RegLaneT, as all
590 /** View as the Nth lane of type VecElem. */
596     return VecLaneT<VecElem, false>(as<VecElem>()[LaneIdx]);
599 /** View as the const Nth lane of type VecElem. */
605     return VecLaneT<VecElem, true>(as<VecElem>()[LaneIdx]);
608 /** View as the Nth lane of type VecElem. */
614     return VecLaneT<VecElem, false>(as<VecElem>()[laneIdx]);
617 /** View as the const Nth lane of type VecElem. */
623     return VecLaneT<VecElem, true>(as<VecElem>()[laneIdx]);