arch/generic/vec_reg.hh

49  * The design is having a basic vector register container that holds the
54  * This file also describes two views of the container that have semantic
60  *    underlying container. As VecRegT has some degree of type information it
63  * The second view of a container implemented in this file is VecLaneT, which
64  * is a view of a subset of the container.
166  * of VecRegT to view the container as a vector of NumElems elems of type
170  * @tparam Const Indicate if the underlying container can be modified through
186     /** Reference to container. */
187     Container& container;
191     VecRegT(Container& cnt) : container(cnt) {};
193     /** Zero the container. */
196     zero() { container.zero(); }
202         container = that.container;
209         return container.template raw_ptr<VecElem>()[idx];
217         return container.template raw_ptr<VecElem>()[idx];
227         return container == that.container;
254      * It is useful to get the reference to the container for ISA tricks,
257     operator Container&() { return container; }
269  * @tparam Sz Size of the container in bytes.
282     Container container;
291         std::memcpy(container.data(), &that[0], SIZE);
294     /** Zero the container. */
295     void zero() { memset(container.data(), 0, SIZE); }
304         memcpy(container.data(), that.container.data(), SIZE);
311         std::memcpy(container.data(), that.data(), SIZE);
321         std::memcpy(container.data(), that.data(), SIZE);
331         std::memcpy(dst.data(), container.data(), SIZE);
340         std::memcpy(dst.data(), container.data(), SIZE);
352                !memcmp(container.data(), that.container.data(), SIZE);
367     const Ret* raw_ptr() const { return (const Ret*)container.data(); }
370     Ret* raw_ptr() { return (Ret*)container.data(); }
374      * Create a view of this container as a vector of VecElems with an
376      * the size of the container is checked, to test bounds. If it is not
377      * provided, the length is inferred from the container size and the
418         for (auto& b: v.container) {
502  * Another view of a container. This time only a partial part of it is exposed.
504  * @tparam Const Indicate if the underlying container can be modified through
541     Cont& container;
544     VecLaneT(Cont& cont) : container(cont) { }
548      * Assignment operators are only enabled if the underlying container is
555         container = that;
570         container = static_cast<VecElem>(that);
575     operator VecElem() const { return container; }
581         return VecLaneT<VecElem, true>(container);