148 lines
3.8 KiB
ArmAsm
148 lines
3.8 KiB
ArmAsm
/***************************************************************************
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Copyright (c) 2023, The OpenBLAS Project
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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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#define ASSEMBLER
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#include "common.h"
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#define N $r4
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#define X $r5
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#define INCX $r6
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#define I $r17
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#define TEMP $r18
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#define t1 $r12
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#define t2 $r13
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#define t3 $r14
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#define t4 $r15
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#define a1 $f15
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#define a2 $f16
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#define res $f19
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#define VX0 $xr15
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#define VX1 $xr16
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#define VX2 $xr17
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#define VX3 $xr18
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#define VX4 $xr21
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#define res1 $xr19
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#define res2 $xr20
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PROLOGUE
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#ifdef F_INTERFACE
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LDINT N, 0(N)
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LDINT INCX, 0(INCX)
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#endif
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xvxor.v res1, res1, res1
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xvxor.v res2, res2, res2
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bge $r0, N, .L999
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beq $r0, INCX, .L999
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li.d TEMP, SIZE
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slli.d INCX, INCX, ZBASE_SHIFT
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srai.d I, N, 2
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bne INCX, TEMP, .L20
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bge $r0, I, .L997
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.align 3
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.L10:
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xvld VX0, X, 0 * SIZE
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xvfcvtl.d.s VX1, VX0
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xvfcvth.d.s VX2, VX0
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xvfmadd.d res1, VX1, VX1, res1
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xvfmadd.d res2, VX2, VX2, res2
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addi.d I, I, -1
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addi.d X, X, 8 * SIZE
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blt $r0, I, .L10
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.align 3
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b .L996
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.L20:
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bge $r0, I, .L997
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.align 3
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.L21:
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ld.w t1, X, 0 * SIZE
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ld.w t2, X, 1 * SIZE
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add.d X, X, INCX
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ld.w t3, X, 0 * SIZE
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ld.w t4, X, 1 * SIZE
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add.d X, X, INCX
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xvinsgr2vr.w VX0, t1, 0
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xvinsgr2vr.w VX0, t2, 1
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xvinsgr2vr.w VX0, t3, 2
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xvinsgr2vr.w VX0, t4, 3
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ld.w t1, X, 0 * SIZE
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ld.w t2, X, 1 * SIZE
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add.d X, X, INCX
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ld.w t3, X, 0 * SIZE
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ld.w t4, X, 1 * SIZE
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xvinsgr2vr.w VX0, t1, 4
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xvinsgr2vr.w VX0, t2, 5
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xvinsgr2vr.w VX0, t3, 6
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xvinsgr2vr.w VX0, t4, 7
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add.d X, X, INCX
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xvfcvtl.d.s VX1, VX0
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xvfcvth.d.s VX2, VX0
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xvfmadd.d res1, VX1, VX1, res1
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xvfmadd.d res2, VX2, VX2, res2
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addi.d I, I, -1
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blt $r0, I, .L21
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b .L996
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.L996:
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xvfadd.d res1, res1, res2
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xvpickve.d VX1, res1, 1
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xvpickve.d VX2, res1, 2
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xvpickve.d VX3, res1, 3
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xvfadd.d res1, VX1, res1
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xvfadd.d res1, VX2, res1
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xvfadd.d res1, VX3, res1
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.align 3
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.L997:
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andi I, N, 3
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bge $r0, I, .L999
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.align 3
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.L998:
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fld.s a1, X, 0 * SIZE
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fld.s a2, X, 1 * SIZE
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addi.d I, I, -1
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fcvt.d.s a1, a1
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fcvt.d.s a2, a2
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fmadd.d res, a1, a1, res
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fmadd.d res, a2, a2, res
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add.d X, X, INCX
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blt $r0, I, .L998
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.align 3
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.L999:
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fsqrt.d res, res
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move $r4, $r17
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fcvt.s.d $f0, res
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jirl $r0, $r1, 0x0
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EPILOGUE
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