269 lines
6.3 KiB
ArmAsm
269 lines
6.3 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
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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 COPYRIGHT OWNER 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 XX $r19
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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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/* Don't change following FR unless you know the effects. */
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#define VX0 $vr15
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#define VX1 $vr16
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#define VM0 $vr17
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#define VM1 $vr18
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#define VM2 $vr13
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#define VM3 $vr14
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#define res1 $vr19
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#define res2 $vr20
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#define VALPHA $vr21
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#define INF $f23
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#define a1 $f22
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#define max $f17
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#define ALPHA $f12
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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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vxor.v res1, res1, res1
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vxor.v res2, res2, res2
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vxor.v VM0, VM0, VM0
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bge $r0, N, .L999
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beq $r0, INCX, .L999
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move XX, X
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// Init INF
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addi.d TEMP, $r0, 0x7FF
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slli.d TEMP, TEMP, 52
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MTC INF, TEMP
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li.d TEMP, SIZE
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slli.d INCX, INCX, BASE_SHIFT
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srai.d I, N, 3
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bne INCX, TEMP, .L20
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bge $r0, I, .L97
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.align 3
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.L10:
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vld VX0, X, 0 * SIZE
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vld VX1, X, 2 * SIZE
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vfmaxa.d VM1, VX1, VX0
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vld VX0, X, 4 * SIZE
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vld VX1, X, 6 * SIZE
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vfmaxa.d VM2, VX1, VX0
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vfmaxa.d VM3, VM1, VM2
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vfmaxa.d VM0, VM0, VM3
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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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b .L96
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.align 3
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.L20: // INCX!=1
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bge $r0, I, .L97
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.align 3
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.L21:
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ld.d t1, X, 0 * SIZE
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add.d X, X, INCX
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vinsgr2vr.d VX0, t1, 0
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ld.d t2, X, 0 * SIZE
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add.d X, X, INCX
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vinsgr2vr.d VX0, t2, 1
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ld.d t3, X, 0 * SIZE
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add.d X, X, INCX
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vinsgr2vr.d VX1, t3, 0
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ld.d t4, X, 0 * SIZE
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add.d X, X, INCX
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vinsgr2vr.d VX1, t4, 1
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vfmaxa.d VM1, VX0, VX1
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ld.d t1, X, 0 * SIZE
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add.d X, X, INCX
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vinsgr2vr.d VX0, t1, 0
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ld.d t2, X, 0 * SIZE
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add.d X, X, INCX
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vinsgr2vr.d VX0, t2, 1
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ld.d t3, X, 0 * SIZE
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add.d X, X, INCX
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vinsgr2vr.d VX1, t3, 0
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ld.d t4, X, 0 * SIZE
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add.d X, X, INCX
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vinsgr2vr.d VX1, t4, 1
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vfmaxa.d VM2, VX0, VX1
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vfmaxa.d VM3, VM1, VM2
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vfmaxa.d VM0, VM0, VM3
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addi.d I, I, -1
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blt $r0, I, .L21
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b .L96
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.align 3
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.L96:
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vreplvei.d VX0, VM0, 0
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vreplvei.d VX1, VM0, 1
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vfmaxa.d VM0, VX0, VX1
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.align 3
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.L97:
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andi I, N, 7
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bge $r0, I, .L99
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.align 3
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.L98:
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vld VX1, X, 0
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vfmaxa.d VM0, VM0, VX1
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addi.d I, I, -1
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add.d X, X, INCX
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blt $r0, I, .L98
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.align 3
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.L99:
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fabs.d max, max
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lu12i.w TEMP, 0x3f800 // 1
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movgr2fr.d a1, $r0
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movgr2fr.w ALPHA, TEMP
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CMPEQ $fcc0, max, a1
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fcvt.d.s ALPHA, ALPHA
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bcnez $fcc0, .L999
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fdiv.d ALPHA, ALPHA, max
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CMPEQ $fcc0, INF, ALPHA
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bcnez $fcc0, .L999
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movfr2gr.d TEMP, ALPHA
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vreplgr2vr.d VALPHA, TEMP
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.L100:
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li.d TEMP, SIZE
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bne INCX, TEMP, .L120
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srai.d I, N, 3
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bge $r0, I, .L997
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.align 3
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.L110:
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vld VX0, XX, 0 * SIZE
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vld VX1, XX, 2 * SIZE
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vfmul.d VM2, VX0, VALPHA
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vfmul.d VM3, VX1, VALPHA
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vfmadd.d res1, VM2, VM2, res1
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vfmadd.d res2, VM3, VM3, res2
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vld VX0, XX, 4 * SIZE
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vld VX1, XX, 6 * SIZE
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vfmul.d VM2, VX0, VALPHA
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vfmul.d VM3, VX1, VALPHA
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vfmadd.d res1, VM2, VM2, res1
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vfmadd.d res2, VM3, VM3, res2
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addi.d XX, XX, 8 * SIZE
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addi.d I, I, -1
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blt $r0, I, .L110
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b .L996
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.align 3
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.L120:
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srai.d I, N, 3
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bge $r0, I, .L997
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.align 3
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.L121:
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ld.d t1, XX, 0 * SIZE
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add.d XX, XX, INCX
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ld.d t2, XX, 0 * SIZE
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add.d XX, XX, INCX
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ld.d t3, XX, 0 * SIZE
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add.d XX, XX, INCX
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ld.d t4, XX, 0 * SIZE
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add.d XX, XX, INCX
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vinsgr2vr.d VX0, t1, 0
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vinsgr2vr.d VX0, t2, 1
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vinsgr2vr.d VX1, t3, 0
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vinsgr2vr.d VX1, t4, 1
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vfmul.d VM2, VX0, VALPHA
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ld.d t1, XX, 0 * SIZE
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add.d XX, XX, INCX
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vfmul.d VM3, VX1, VALPHA
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ld.d t2, XX, 0 * SIZE
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add.d XX, XX, INCX
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vfmadd.d res1, VM2, VM2, res1
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vfmadd.d res2, VM3, VM3, res2
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ld.d t3, XX, 0 * SIZE
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add.d XX, XX, INCX
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ld.d t4, XX, 0 * SIZE
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add.d XX, XX, INCX
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vinsgr2vr.d VX0, t1, 0
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vinsgr2vr.d VX0, t2, 1
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vinsgr2vr.d VX1, t3, 0
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vinsgr2vr.d VX1, t4, 1
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vfmul.d VM2, VX0, VALPHA
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vfmul.d VM3, VX1, VALPHA
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vfmadd.d res1, VM2, VM2, res1
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vfmadd.d res2, VM3, VM3, res2
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addi.d I, I, -1
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blt $r0, I, .L121
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b .L996
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.align 3
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.L996:
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vfadd.d res1, res1, res2
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vreplvei.d VX1, res1, 1
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vfadd.d res1, VX1, res1
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.align 3
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.L997:
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andi I, N, 7
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bge $r0, I, .L999
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.align 3
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.L998:
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fld.d $f15, XX, 0 * SIZE
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addi.d I, I, -1
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fmul.d $f15, $f15, ALPHA
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fmadd.d $f19, $f15, $f15, $f19
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add.d XX, XX , 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 $f19, $f19
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fmul.d $f0, max, $f19
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jirl $r0, $r1, 0x0
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EPILOGUE
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