/*
 * Copyright (c) 2015-2017, Intel Corporation
 * Copyright (c) 2021, Arm Limited
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *  * Neither the name of Intel Corporation nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */

/** \file
 * \brief Bit-twiddling primitives for SVE (ctz, compress etc)
 */

static really_inline
u32 expand32_impl(u32 x, u32 m) {
    return svlasta(svpfalse(), svbdep(svdup_u32(x), m));
}

static really_inline
u64a expand64_impl(u64a x, u64a m) {
    return svlasta(svpfalse(), svbdep(svdup_u64(x), m));
}

static really_inline
void bdep64x2(u64a *d, const u64a *x, const m128 *m) {
    svbool_t pg = svptrue_pat_b64(SV_VL2);
    svst1(pg, (uint64_t *)d, svbdep(svld1_u64(pg, (const uint64_t *)x),
                                    svld1_u64(pg, (const uint64_t *)m)));
}