346 lines
10 KiB
C
346 lines
10 KiB
C
/***************************************************************************
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Copyright (c) 2017, The OpenBLAS Project
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Copyright (c) 2022, Arm Ltd
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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3. Neither the name of the OpenBLAS project nor the names of
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its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include "common.h"
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#include <arm_neon.h>
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#if !defined(DSDOT)
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#define RETURN_TYPE FLOAT
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#else
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#define RETURN_TYPE double
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#endif
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#if !defined(DOUBLE)
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#if !defined(DSDOT)
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#define DOT_MOD "s"
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#define REG0 "wzr"
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#define TMPX "s16"
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#define TMPY "s24"
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#define INC_SHIFT "2"
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#define N_DIV_SHIFT "6"
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#define N_REM_MASK "63"
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#else
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#define DOT_MOD "d"
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#define REG0 "xzr"
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#define TMPX "s16"
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#define TMPX1 "d2"
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#define TMPY "s24"
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#define TMPY1 "d3"
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#define INC_SHIFT "2"
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#define N_DIV_SHIFT "4"
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#define N_REM_MASK "15"
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#endif
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#else
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#define DOT_MOD "d"
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#define REG0 "xzr"
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#define TMPX "d16"
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#define TMPY "d24"
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#define INC_SHIFT "3"
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#define N_DIV_SHIFT "5"
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#define N_REM_MASK "31"
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#endif
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#define OUT "%"DOT_MOD"[DOT_]"
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#if !defined(DOUBLE)
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#if !defined(DSDOT)
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#define KERNEL_F1 \
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" ldr "TMPX", [%[X_]] \n" \
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" ldr "TMPY", [%[Y_]] \n" \
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" add %[X_], %[X_], %[INCX_] \n" \
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" add %[Y_], %[Y_], %[INCY_] \n" \
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" fmadd "OUT", "TMPX", "TMPY", "OUT" \n"
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#define KERNEL_F \
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" ldp q16, q17, [%[X_]] \n" \
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" ldp q24, q25, [%[Y_]] \n" \
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" ldp q18, q19, [%[X_], #32] \n" \
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" ldp q26, q27, [%[Y_], #32] \n" \
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" fmla v0.4s, v16.4s, v24.4s \n" \
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" fmla v1.4s, v17.4s, v25.4s \n" \
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" ldp q20, q21, [%[X_], #64] \n" \
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" ldp q28, q29, [%[Y_], #64] \n" \
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" fmla v2.4s, v18.4s, v26.4s \n" \
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" fmla v3.4s, v19.4s, v27.4s \n" \
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" ldp q22, q23, [%[X_], #96] \n" \
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" ldp q30, q31, [%[Y_], #96] \n" \
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" add %[Y_], %[Y_], #128 \n" \
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" add %[X_], %[X_], #128 \n" \
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" fmla v4.4s, v20.4s, v28.4s \n" \
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" fmla v5.4s, v21.4s, v29.4s \n" \
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" PRFM PLDL1KEEP, [%[X_], #896] \n" \
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" PRFM PLDL1KEEP, [%[Y_], #896] \n" \
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" PRFM PLDL1KEEP, [%[X_], #896+64] \n" \
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" PRFM PLDL1KEEP, [%[Y_], #896+64] \n" \
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" fmla v6.4s, v22.4s, v30.4s \n" \
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" fmla v7.4s, v23.4s, v31.4s \n" \
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" ldp q16, q17, [%[X_]] \n" \
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" ldp q24, q25, [%[Y_]] \n" \
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" ldp q18, q19, [%[X_], #32] \n" \
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" ldp q26, q27, [%[Y_], #32] \n" \
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" fmla v0.4s, v16.4s, v24.4s \n" \
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" fmla v1.4s, v17.4s, v25.4s \n" \
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" ldp q20, q21, [%[X_], #64] \n" \
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" ldp q28, q29, [%[Y_], #64] \n" \
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" fmla v2.4s, v18.4s, v26.4s \n" \
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" fmla v3.4s, v19.4s, v27.4s \n" \
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" ldp q22, q23, [%[X_], #96] \n" \
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" ldp q30, q31, [%[Y_], #96] \n" \
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" add %[Y_], %[Y_], #128 \n" \
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" add %[X_], %[X_], #128 \n" \
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" fmla v4.4s, v20.4s, v28.4s \n" \
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" fmla v5.4s, v21.4s, v29.4s \n" \
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" PRFM PLDL1KEEP, [%[X_], #896] \n" \
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" PRFM PLDL1KEEP, [%[Y_], #896] \n" \
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" PRFM PLDL1KEEP, [%[X_], #896+64] \n" \
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" PRFM PLDL1KEEP, [%[Y_], #896+64] \n" \
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" fmla v6.4s, v22.4s, v30.4s \n" \
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" fmla v7.4s, v23.4s, v31.4s \n"
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#define KERNEL_F_FINALIZE \
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" fadd v0.4s, v0.4s, v1.4s \n" \
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" fadd v2.4s, v2.4s, v3.4s \n" \
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" fadd v4.4s, v4.4s, v5.4s \n" \
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" fadd v6.4s, v6.4s, v7.4s \n" \
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" fadd v0.4s, v0.4s, v2.4s \n" \
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" fadd v4.4s, v4.4s, v6.4s \n" \
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" fadd v0.4s, v0.4s, v4.4s \n" \
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" faddp v0.4s, v0.4s, v0.4s \n" \
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" faddp v0.4s, v0.4s, v0.4s \n"
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#else /* !defined(DSDOT) */
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#define KERNEL_F1 \
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" ldr "TMPX", [%[X_]] \n" \
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" ldr "TMPY", [%[Y_]] \n" \
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" add %[X_], %[X_], %[INCX_] \n" \
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" add %[Y_], %[Y_], %[INCY_] \n" \
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" fcvt "TMPX1", "TMPX" \n" \
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" fcvt "TMPY1", "TMPY" \n" \
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" fmul "TMPX1", "TMPX1", "TMPY1" \n" \
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" fadd "OUT", "OUT", "TMPX1" \n"
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#define KERNEL_F \
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" ldp q18, q19, [%[X_]] \n" \
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" ldp q26, q27, [%[Y_]] \n" \
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" fcvtl v16.2d, v18.2s \n" \
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" fcvtl2 v17.2d, v18.4s \n" \
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" fcvtl v18.2d, v19.2s \n" \
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" fcvtl2 v19.2d, v19.4s \n" \
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" fcvtl v24.2d, v26.2s \n" \
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" fcvtl2 v25.2d, v26.4s \n" \
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" fcvtl v26.2d, v27.2s \n" \
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" fcvtl2 v27.2d, v27.4s \n" \
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" ldp q22, q23, [%[X_], #32] \n" \
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" ldp q30, q31, [%[Y_], #32] \n" \
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" fcvtl v20.2d, v22.2s \n" \
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" fcvtl2 v21.2d, v22.4s \n" \
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" fcvtl v22.2d, v23.2s \n" \
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" fcvtl2 v23.2d, v23.4s \n" \
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" fcvtl v28.2d, v30.2s \n" \
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" fcvtl2 v29.2d, v30.4s \n" \
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" fcvtl v30.2d, v31.2s \n" \
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" fcvtl2 v31.2d, v31.4s \n" \
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" PRFM PLDL1KEEP, [%[X_], #896] \n" \
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" PRFM PLDL1KEEP, [%[Y_], #896] \n" \
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" PRFM PLDL1KEEP, [%[X_], #896+64] \n" \
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" PRFM PLDL1KEEP, [%[Y_], #896+64] \n" \
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" fmla v0.2d, v16.2d, v24.2d \n" \
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" fmla v1.2d, v17.2d, v25.2d \n" \
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" fmla v2.2d, v18.2d, v26.2d \n" \
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" fmla v3.2d, v19.2d, v27.2d \n" \
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" add %[Y_], %[Y_], #64 \n" \
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" add %[X_], %[X_], #64 \n" \
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" fmla v4.2d, v20.2d, v28.2d \n" \
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" fmla v5.2d, v21.2d, v29.2d \n" \
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" fmla v6.2d, v22.2d, v30.2d \n" \
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" fmla v7.2d, v23.2d, v31.2d \n"
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#define KERNEL_F_FINALIZE \
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" fadd v0.2d, v0.2d, v1.2d \n" \
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" fadd v2.2d, v2.2d, v3.2d \n" \
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" fadd v4.2d, v4.2d, v5.2d \n" \
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" fadd v6.2d, v6.2d, v7.2d \n" \
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" fadd v0.2d, v0.2d, v2.2d \n" \
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" fadd v4.2d, v4.2d, v6.2d \n" \
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" fadd v0.2d, v0.2d, v4.2d \n" \
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" faddp "OUT", v0.2d \n"
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#endif /* !defined(DSDOT) */
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#else /* !defined(DOUBLE) */
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#define KERNEL_F1 \
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" ldr "TMPX", [%[X_]] \n" \
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" ldr "TMPY", [%[Y_]] \n" \
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" add %[X_], %[X_], %[INCX_] \n" \
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" add %[Y_], %[Y_], %[INCY_] \n" \
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" fmadd "OUT", "TMPX", "TMPY", "OUT" \n"
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#define KERNEL_F \
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" ldp q16, q17, [%[X_]] \n" \
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" ldp q24, q25, [%[Y_]] \n" \
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" ldp q18, q19, [%[X_], #32] \n" \
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" ldp q26, q27, [%[Y_], #32] \n" \
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" fmla v0.2d, v16.2d, v24.2d \n" \
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" fmla v1.2d, v17.2d, v25.2d \n" \
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" ldp q20, q21, [%[X_], #64] \n" \
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" ldp q28, q29, [%[Y_], #64] \n" \
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" fmla v2.2d, v18.2d, v26.2d \n" \
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" fmla v3.2d, v19.2d, v27.2d \n" \
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" ldp q22, q23, [%[X_], #96] \n" \
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" ldp q30, q31, [%[Y_], #96] \n" \
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" add %[Y_], %[Y_], #128 \n" \
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" add %[X_], %[X_], #128 \n" \
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" fmla v4.2d, v20.2d, v28.2d \n" \
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" fmla v5.2d, v21.2d, v29.2d \n" \
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" PRFM PLDL1KEEP, [%[X_], #896] \n" \
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" PRFM PLDL1KEEP, [%[Y_], #896] \n" \
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" PRFM PLDL1KEEP, [%[X_], #896+64] \n" \
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" PRFM PLDL1KEEP, [%[Y_], #896+64] \n" \
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" fmla v6.2d, v22.2d, v30.2d \n" \
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" fmla v7.2d, v23.2d, v31.2d \n" \
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" ldp q16, q17, [%[X_]] \n" \
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" ldp q24, q25, [%[Y_]] \n" \
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" ldp q18, q19, [%[X_], #32] \n" \
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" ldp q26, q27, [%[Y_], #32] \n" \
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" fmla v0.2d, v16.2d, v24.2d \n" \
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" fmla v1.2d, v17.2d, v25.2d \n" \
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" ldp q20, q21, [%[X_], #64] \n" \
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" ldp q28, q29, [%[Y_], #64] \n" \
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" fmla v2.2d, v18.2d, v26.2d \n" \
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" fmla v3.2d, v19.2d, v27.2d \n" \
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" ldp q22, q23, [%[X_], #96] \n" \
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" ldp q30, q31, [%[Y_], #96] \n" \
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" add %[Y_], %[Y_], #128 \n" \
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" add %[X_], %[X_], #128 \n" \
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" fmla v4.2d, v20.2d, v28.2d \n" \
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" fmla v5.2d, v21.2d, v29.2d \n" \
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" PRFM PLDL1KEEP, [%[X_], #896] \n" \
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" PRFM PLDL1KEEP, [%[Y_], #896] \n" \
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" PRFM PLDL1KEEP, [%[X_], #896+64] \n" \
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" PRFM PLDL1KEEP, [%[Y_], #896+64] \n" \
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" fmla v6.2d, v22.2d, v30.2d \n" \
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" fmla v7.2d, v23.2d, v31.2d \n"
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#define KERNEL_F_FINALIZE \
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" fadd v0.2d, v0.2d, v1.2d \n" \
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" fadd v2.2d, v2.2d, v3.2d \n" \
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" fadd v4.2d, v4.2d, v5.2d \n" \
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" fadd v6.2d, v6.2d, v7.2d \n" \
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" fadd v0.2d, v0.2d, v2.2d \n" \
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" fadd v4.2d, v4.2d, v6.2d \n" \
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" fadd v0.2d, v0.2d, v4.2d \n" \
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" faddp "OUT", v0.2d \n"
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#endif /* !defined(DOUBLE) */
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static RETURN_TYPE dot_kernel_asimd(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
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{
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RETURN_TYPE dot = 0.0;
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BLASLONG j = 0;
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__asm__ __volatile__ (
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" fmov "OUT", "REG0" \n"
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" fmov d1, xzr \n"
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" fmov d2, xzr \n"
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" fmov d3, xzr \n"
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" fmov d4, xzr \n"
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" fmov d5, xzr \n"
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" fmov d6, xzr \n"
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" fmov d7, xzr \n"
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" cmp %[INCX_], #1 \n"
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" bne 5f //dot_kernel_S_BEGIN \n"
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" cmp %[INCY_], #1 \n"
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" bne 5f //dot_kernel_S_BEGIN \n"
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"1: //dot_kernel_F_BEGIN: \n"
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" lsl %[INCX_], %[INCX_], "INC_SHIFT" \n"
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" lsl %[INCY_], %[INCY_], "INC_SHIFT" \n"
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" asr %[J_], %[N_], #"N_DIV_SHIFT" \n"
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" cmp %[J_], xzr \n"
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" beq 3f //dot_kernel_F1 \n"
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" .align 5 \n"
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"2: //dot_kernel_F: \n"
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" "KERNEL_F" \n"
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" subs %[J_], %[J_], #1 \n"
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" bne 2b //dot_kernel_F \n"
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" "KERNEL_F_FINALIZE" \n"
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"3: //dot_kernel_F1: \n"
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" ands %[J_], %[N_], #"N_REM_MASK" \n"
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" ble 9f //dot_kernel_L999 \n"
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"4: //dot_kernel_F10: \n"
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" "KERNEL_F1" \n"
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" subs %[J_], %[J_], #1 \n"
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" bne 4b //dot_kernel_F10 \n"
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" b 9f //dot_kernel_L999 \n"
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"5: //dot_kernel_S_BEGIN: \n"
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" lsl %[INCX_], %[INCX_], "INC_SHIFT" \n"
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" lsl %[INCY_], %[INCY_], "INC_SHIFT" \n"
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" asr %[J_], %[N_], #2 \n"
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" cmp %[J_], xzr \n"
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" ble 7f //dot_kernel_S1 \n"
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"6: //dot_kernel_S4: \n"
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" "KERNEL_F1" \n"
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" "KERNEL_F1" \n"
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" "KERNEL_F1" \n"
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" "KERNEL_F1" \n"
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" subs %[J_], %[J_], #1 \n"
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" bne 6b //dot_kernel_S4 \n"
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"7: //dot_kernel_S1: \n"
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" ands %[J_], %[N_], #3 \n"
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" ble 9f //dot_kernel_L999 \n"
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"8: //dot_kernel_S10: \n"
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" "KERNEL_F1" \n"
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" subs %[J_], %[J_], #1 \n"
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" bne 8b //dot_kernel_S10 \n"
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"9: //dot_kernel_L999: \n"
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: [DOT_] "=&w" (dot)
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: [N_] "r" (n),
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[X_] "r" (x),
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[INCX_] "r" (inc_x),
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[Y_] "r" (y),
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[INCY_] "r" (inc_y),
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[J_] "r" (j)
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: "cc",
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"memory",
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"d1", "d2", "d3", "d4", "d5", "d6", "d7"
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);
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return dot;
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}
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