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dgemm_kernel_8x4.S
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/*******************************************************************************
Copyright (c) 2021, The OpenBLAS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. 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.
3. Neither the name of the OpenBLAS project 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 OPENBLAS PROJECT OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************/
#define ASSEMBLER
#include "common.h"
/* Function parameters */
#define M $r4 // param 1: bm
#define N $r5 // param 2: bn
#define K $r6 // param 3: bk
#define ALPHA $f0 // param 4: alpha
#define A $r7 // param 5: ba
#define B $r8 // param 6: bb
#define C $r9 // param 7: bc
#define LDC $r10 // param 8: ldc
#ifdef TRMMKERNEL
#define OFFSET $r11 // param 9: offset
#endif
#define OFF $r12
/* Cycle control parameters */
#define I $r13
#define J $r14
#define L $r15
#define TL $r16
/* Matrix address */
#define A0 $r17
#define B0 $r18
#define C0 $r19
#define C1 $r20
#define C2 $r23
#define C3 $r24
#define T0 $r25 /* !! DO NOT USE $r21 and $r22 !! */
#define T1 $r26
#define T2 $r27
#define ZERO $r0
/* LSX vectors */
#define U0 $vr0
#define U1 $vr1
#define U2 $vr2
#define U3 $vr3
#define U4 $vr4
#define U5 $vr5
#define U6 $vr6
#define U7 $vr7
#define U8 $vr8
#define U9 $vr9
#define U10 $vr10
#define U11 $vr11
#define U12 $vr12
#define U13 $vr13
#define U14 $vr14
#define U15 $vr15
#define D0 $vr16
#define D1 $vr17
#define D2 $vr18
#define D3 $vr19
#define D4 $vr20
#define D5 $vr21
#define D6 $vr22
#define D7 $vr23
#define D8 $vr24
#define D9 $vr25
#define D10 $vr26
#define D11 $vr27
#define D12 $vr28
#define D13 $vr29
#define D14 $vr30
#define D15 $vr31
#define VALPHA $vr15
/* Prefetch interval */
#define A_PRE 0x200
#define B_PRE 0x100
.macro KERNEL2x8x4
vld U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vld U1, A0, 0x10
vfmadd.d D2, U10, U12, D2
vfmadd.d D3, U11, U12, D3
vld U2, A0, 0x20
vfmadd.d D4, U8, U13, D4
vfmadd.d D5, U9, U13, D5
vld U3, A0, 0x30
vfmadd.d D6, U10, U13, D6
vfmadd.d D7, U11, U13, D7
vldrepl.d U4, B0, 0x00
vfmadd.d D8, U8, U14, D8
vfmadd.d D9, U9, U14, D9
preld 0, B0, B_PRE
vldrepl.d U5, B0, 0x08
vfmadd.d D10, U10, U14, D10
vfmadd.d D11, U11, U14, D11
preld 0, A0, A_PRE
vldrepl.d U6, B0, 0x10
vfmadd.d D12, U8, U15, D12
vfmadd.d D13, U9, U15, D13
preld 0, A0, A_PRE + 0x40
vldrepl.d U7, B0, 0x18
vfmadd.d D14, U10, U15, D14
vfmadd.d D15, U11, U15, D15
addi.d A0, A0, 0x40
addi.d B0, B0, 0x20
vld U8, A0, 0x00
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
vld U9, A0, 0x10
vfmadd.d D2, U2, U4, D2
vfmadd.d D3, U3, U4, D3
vld U10, A0, 0x20
vfmadd.d D4, U0, U5, D4
vfmadd.d D5, U1, U5, D5
vld U11, A0, 0x30
vfmadd.d D6, U2, U5, D6
vfmadd.d D7, U3, U5, D7
vldrepl.d U12, B0, 0x00
vfmadd.d D8, U0, U6, D8
vfmadd.d D9, U1, U6, D9
preld 0, B0, B_PRE
vldrepl.d U13, B0, 0x08
vfmadd.d D10, U2, U6, D10
vfmadd.d D11, U3, U6, D11
preld 0, A0, A_PRE
vldrepl.d U14, B0, 0x10
vfmadd.d D12, U0, U7, D12
vfmadd.d D13, U1, U7, D13
preld 0, A0, A_PRE + 0x40
vldrepl.d U15, B0, 0x18
vfmadd.d D14, U2, U7, D14
vfmadd.d D15, U3, U7, D15
addi.d A0, A0, 0x40
addi.d B0, B0, 0x20
.endm
.macro KERNEL2x8x4_END
vld U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vld U1, A0, 0x10
vfmadd.d D2, U10, U12, D2
vfmadd.d D3, U11, U12, D3
vld U2, A0, 0x20
vfmadd.d D4, U8, U13, D4
vfmadd.d D5, U9, U13, D5
vld U3, A0, 0x30
vfmadd.d D6, U10, U13, D6
vfmadd.d D7, U11, U13, D7
vldrepl.d U4, B0, 0x00
vfmadd.d D8, U8, U14, D8
vfmadd.d D9, U9, U14, D9
preld 0, B0, B_PRE
vldrepl.d U5, B0, 0x08
vfmadd.d D10, U10, U14, D10
vfmadd.d D11, U11, U14, D11
preld 0, A0, A_PRE
vldrepl.d U6, B0, 0x10
vfmadd.d D12, U8, U15, D12
vfmadd.d D13, U9, U15, D13
preld 0, A0, A_PRE + 0x40
vldrepl.d U7, B0, 0x18
vfmadd.d D14, U10, U15, D14
vfmadd.d D15, U11, U15, D15
addi.d A0, A0, 0x40
addi.d B0, B0, 0x20
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
vfmadd.d D2, U2, U4, D2
vfmadd.d D3, U3, U4, D3
vfmadd.d D4, U0, U5, D4
vfmadd.d D5, U1, U5, D5
vfmadd.d D6, U2, U5, D6
vfmadd.d D7, U3, U5, D7
vfmadd.d D8, U0, U6, D8
vfmadd.d D9, U1, U6, D9
preld 0, B0, B_PRE
vfmadd.d D10, U2, U6, D10
vfmadd.d D11, U3, U6, D11
preld 0, A0, A_PRE
vfmadd.d D12, U0, U7, D12
vfmadd.d D13, U1, U7, D13
preld 0, A0, A_PRE + 0x40
vfmadd.d D14, U2, U7, D14
vfmadd.d D15, U3, U7, D15
.endm
.macro KERNEL8x8x4
.rept 4
KERNEL2x8x4
.endr
.endm
.macro KERNEL8x8x4_END
.rept 3
KERNEL2x8x4
.endr
KERNEL2x8x4_END
.endm
.macro KERNEL2x4x4
vld U0, A0, 0x00
vld U1, A0, 0x10
vldrepl.d U4, B0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vldrepl.d U5, B0, 0x08
vfmadd.d D4, U8, U13, D4
vfmadd.d D5, U9, U13, D5
vldrepl.d U6, B0, 0x10
vfmadd.d D8, U8, U14, D8
vfmadd.d D9, U9, U14, D9
vldrepl.d U7, B0, 0x18
vfmadd.d D12, U8, U15, D12
vfmadd.d D13, U9, U15, D13
addi.d A0, A0, 0x20
addi.d B0, B0, 0x20
vld U8, A0, 0x00
vld U9, A0, 0x10
vldrepl.d U12, B0, 0x00
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
vldrepl.d U13, B0, 0x08
vfmadd.d D4, U0, U5, D4
vfmadd.d D5, U1, U5, D5
vldrepl.d U14, B0, 0x10
vfmadd.d D8, U0, U6, D8
vfmadd.d D9, U1, U6, D9
vldrepl.d U15, B0, 0x18
vfmadd.d D12, U0, U7, D12
vfmadd.d D13, U1, U7, D13
addi.d A0, A0, 0x20
addi.d B0, B0, 0x20
.endm
.macro KERNEL2x4x4_END
vld U0, A0, 0x00
vld U1, A0, 0x10
vldrepl.d U4, B0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vldrepl.d U5, B0, 0x08
vfmadd.d D4, U8, U13, D4
vfmadd.d D5, U9, U13, D5
vldrepl.d U6, B0, 0x10
vfmadd.d D8, U8, U14, D8
vfmadd.d D9, U9, U14, D9
vldrepl.d U7, B0, 0x18
vfmadd.d D12, U8, U15, D12
vfmadd.d D13, U9, U15, D13
addi.d A0, A0, 0x20
addi.d B0, B0, 0x20
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
vfmadd.d D4, U0, U5, D4
vfmadd.d D5, U1, U5, D5
vfmadd.d D8, U0, U6, D8
vfmadd.d D9, U1, U6, D9
vfmadd.d D12, U0, U7, D12
vfmadd.d D13, U1, U7, D13
.endm
.macro KERNEL8x4x4
.rept 4
KERNEL2x4x4
.endr
.endm
.macro KERNEL8x4x4_END
.rept 3
KERNEL2x4x4
.endr
KERNEL2x4x4_END
.endm
.macro KERNEL2x2x4
vldrepl.d U0, A0, 0x00
vldrepl.d U1, A0, 0x08
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U8, U13, D1
vfmadd.d D2, U9, U12, D2
vfmadd.d D3, U9, U13, D3
vld U4, B0, 0x00
vld U5, B0, 0x10
addi.d A0, A0, 0x10
addi.d B0, B0, 0x20
vldrepl.d U8, A0, 0x00
vldrepl.d U9, A0, 0x08
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U0, U5, D1
vfmadd.d D2, U1, U4, D2
vfmadd.d D3, U1, U5, D3
vld U12, B0, 0x00
vld U13, B0, 0x10
addi.d A0, A0, 0x10
addi.d B0, B0, 0x20
.endm
.macro KERNEL2x2x4_END
vldrepl.d U0, A0, 0x00
vldrepl.d U1, A0, 0x08
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U8, U13, D1
vfmadd.d D2, U9, U12, D2
vfmadd.d D3, U9, U13, D3
vld U4, B0, 0x00
vld U5, B0, 0x10
addi.d A0, A0, 0x10
addi.d B0, B0, 0x20
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U0, U5, D1
vfmadd.d D2, U1, U4, D2
vfmadd.d D3, U1, U5, D3
.endm
.macro KERNEL8x2x4
.rept 4
KERNEL2x2x4
.endr
.endm
.macro KERNEL8x2x4_END
.rept 3
KERNEL2x2x4
.endr
KERNEL2x2x4_END
.endm
.macro KERNEL2x1x4
vldrepl.d U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U8, U13, D1
vld U4, B0, 0x00
vld U5, B0, 0x10
vldrepl.d U8, A0, 0x08
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U0, U5, D1
vld U12, B0, 0x20
vld U13, B0, 0x30
addi.d A0, A0, 0x10
addi.d B0, B0, 0x40
.endm
.macro KERNEL2x1x4_END
vldrepl.d U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U8, U13, D1
vld U4, B0, 0x00
vld U5, B0, 0x10
addi.d A0, A0, 0x08
addi.d B0, B0, 0x20
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U0, U5, D1
.endm
.macro KERNEL8x1x4
.rept 4
KERNEL2x1x4
.endr
.endm
.macro KERNEL8x1x4_END
.rept 3
KERNEL2x1x4
.endr
KERNEL2x1x4_END
.endm
.macro KERNEL2x8x2
vld U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vld U1, A0, 0x10
vfmadd.d D2, U10, U12, D2
vfmadd.d D3, U11, U12, D3
vld U2, A0, 0x20
vfmadd.d D4, U8, U13, D4
vfmadd.d D5, U9, U13, D5
vld U3, A0, 0x30
vfmadd.d D6, U10, U13, D6
vfmadd.d D7, U11, U13, D7
vldrepl.d U4, B0, 0x00
vldrepl.d U5, B0, 0x08
addi.d A0, A0, 0x40
addi.d B0, B0, 0x10
vld U8, A0, 0x00
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
vld U9, A0, 0x10
vfmadd.d D2, U2, U4, D2
vfmadd.d D3, U3, U4, D3
vld U10, A0, 0x20
vfmadd.d D4, U0, U5, D4
vfmadd.d D5, U1, U5, D5
vld U11, A0, 0x30
vfmadd.d D6, U2, U5, D6
vfmadd.d D7, U3, U5, D7
vldrepl.d U12, B0, 0x00
vldrepl.d U13, B0, 0x08
addi.d A0, A0, 0x40
addi.d B0, B0, 0x10
.endm
.macro KERNEL2x8x2_END
vld U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vld U1, A0, 0x10
vfmadd.d D2, U10, U12, D2
vfmadd.d D3, U11, U12, D3
vld U2, A0, 0x20
vfmadd.d D4, U8, U13, D4
vfmadd.d D5, U9, U13, D5
vld U3, A0, 0x30
vfmadd.d D6, U10, U13, D6
vfmadd.d D7, U11, U13, D7
vldrepl.d U4, B0, 0x00
vldrepl.d U5, B0, 0x08
addi.d A0, A0, 0x40
addi.d B0, B0, 0x10
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
vfmadd.d D2, U2, U4, D2
vfmadd.d D3, U3, U4, D3
vfmadd.d D4, U0, U5, D4
vfmadd.d D5, U1, U5, D5
vfmadd.d D6, U2, U5, D6
vfmadd.d D7, U3, U5, D7
.endm
.macro KERNEL8x8x2
.rept 4
KERNEL2x8x2
.endr
.endm
.macro KERNEL8x8x2_END
.rept 3
KERNEL2x8x2
.endr
KERNEL2x8x2_END
.endm
.macro KERNEL2x4x2
vld U0, A0, 0x00
vld U1, A0, 0x10
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vfmadd.d D4, U8, U13, D4
vfmadd.d D5, U9, U13, D5
vldrepl.d U4, B0, 0x00
vldrepl.d U5, B0, 0x08
vld U8, A0, 0x20
vld U9, A0, 0x30
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
vfmadd.d D4, U0, U5, D4
vfmadd.d D5, U1, U5, D5
vldrepl.d U12, B0, 0x10
vldrepl.d U13, B0, 0x18
addi.d A0, A0, 0x40
addi.d B0, B0, 0x20
.endm
.macro KERNEL2x4x2_END
vld U0, A0, 0x00
vld U1, A0, 0x10
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vfmadd.d D4, U8, U13, D4
vfmadd.d D5, U9, U13, D5
vldrepl.d U4, B0, 0x00
vldrepl.d U5, B0, 0x08
addi.d A0, A0, 0x20
addi.d B0, B0, 0x10
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
vfmadd.d D4, U0, U5, D4
vfmadd.d D5, U1, U5, D5
.endm
.macro KERNEL8x4x2
.rept 4
KERNEL2x4x2
.endr
.endm
.macro KERNEL8x4x2_END
.rept 3
KERNEL2x4x2
.endr
KERNEL2x4x2_END
.endm
.macro KERNEL2x2x2
vld U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D4, U8, U13, D4
vldrepl.d U4, B0, 0x00
vldrepl.d U5, B0, 0x08
vld U8, A0, 0x10
vldrepl.d U12, B0, 0x10
vldrepl.d U13, B0, 0x18
vfmadd.d D0, U0, U4, D0
vfmadd.d D4, U0, U5, D4
addi.d A0, A0, 0x20
addi.d B0, B0, 0x20
.endm
.macro KERNEL2x2x2_END
vld U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D4, U8, U13, D4
vldrepl.d U4, B0, 0x00
vldrepl.d U5, B0, 0x08
addi.d A0, A0, 0x10
addi.d B0, B0, 0x10
vfmadd.d D0, U0, U4, D0
vfmadd.d D4, U0, U5, D4
.endm
.macro KERNEL8x2x2
.rept 4
KERNEL2x2x2
.endr
.endm
.macro KERNEL8x2x2_END
.rept 3
KERNEL2x2x2
.endr
KERNEL2x2x2_END
.endm
.macro KERNEL2x1x2
vldrepl.d U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vld U4, B0, 0x00
vldrepl.d U8, A0, 0x08
vld U12, B0, 0x10
vfmadd.d D0, U0, U4, D0
addi.d A0, A0, 0x10
addi.d B0, B0, 0x20
.endm
.macro KERNEL2x1x2_END
vldrepl.d U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vld U4, B0, 0x00
addi.d A0, A0, 0x08
addi.d B0, B0, 0x10
vfmadd.d D0, U0, U4, D0
.endm
.macro KERNEL8x1x2
.rept 4
KERNEL2x1x2
.endr
.endm
.macro KERNEL8x1x2_END
.rept 3
KERNEL2x1x2
.endr
KERNEL2x1x2_END
.endm
.macro KERNEL2x8x1
vld U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vld U1, A0, 0x10
vfmadd.d D2, U10, U12, D2
vfmadd.d D3, U11, U12, D3
vldrepl.d U4, B0, 0x00
vld U2, A0, 0x20
vld U3, A0, 0x30
vld U8, A0, 0x40
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
vld U9, A0, 0x50
vfmadd.d D2, U2, U4, D2
vfmadd.d D3, U3, U4, D3
vld U10, A0, 0x60
vld U11, A0, 0x70
vldrepl.d U12, B0, 0x08
addi.d A0, A0, 0x80
addi.d B0, B0, 0x10
.endm
.macro KERNEL2x8x1_END
vld U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vld U1, A0, 0x10
vfmadd.d D2, U10, U12, D2
vfmadd.d D3, U11, U12, D3
vld U2, A0, 0x20
vld U3, A0, 0x30
vldrepl.d U4, B0, 0x00
addi.d A0, A0, 0x40
addi.d B0, B0, 0x08
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
vfmadd.d D2, U2, U4, D2
vfmadd.d D3, U3, U4, D3
.endm
.macro KERNEL8x8x1
.rept 4
KERNEL2x8x1
.endr
.endm
.macro KERNEL8x8x1_END
.rept 3
KERNEL2x8x1
.endr
KERNEL2x8x1_END
.endm
.macro KERNEL2x4x1
vld U0, A0, 0x00
vld U1, A0, 0x10
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vldrepl.d U4, B0, 0x00
vld U8, A0, 0x20
vld U9, A0, 0x30
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
vldrepl.d U12, B0, 0x08
addi.d A0, A0, 0x40
addi.d B0, B0, 0x10
.endm
.macro KERNEL2x4x1_END
vld U0, A0, 0x00
vld U1, A0, 0x10
vfmadd.d D0, U8, U12, D0
vfmadd.d D1, U9, U12, D1
vldrepl.d U4, B0, 0x00
addi.d A0, A0, 0x20
addi.d B0, B0, 0x08
vfmadd.d D0, U0, U4, D0
vfmadd.d D1, U1, U4, D1
.endm
.macro KERNEL8x4x1
.rept 4
KERNEL2x4x1
.endr
.endm
.macro KERNEL8x4x1_END
.rept 3
KERNEL2x4x1
.endr
KERNEL2x4x1_END
.endm
.macro KERNEL2x2x1
vld U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vldrepl.d U4, B0, 0x00
addi.d A0, A0, 0x10
addi.d B0, B0, 0x08
vld U8, A0, 0x00
vfmadd.d D0, U0, U4, D0
vldrepl.d U12, B0, 0x00
addi.d A0, A0, 0x10
addi.d B0, B0, 0x08
.endm
.macro KERNEL2x2x1_END
vld U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vldrepl.d U4, B0, 0x00
addi.d A0, A0, 0x10
addi.d B0, B0, 0x08
vfmadd.d D0, U0, U4, D0
.endm
.macro KERNEL8x2x1
.rept 4
KERNEL2x2x1
.endr
.endm
.macro KERNEL8x2x1_END
.rept 3
KERNEL2x2x1
.endr
KERNEL2x2x1_END
.endm
.macro KERNEL2x1x1
vldrepl.d U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vldrepl.d U4, B0, 0x00
addi.d A0, A0, 0x08
addi.d B0, B0, 0x08
vldrepl.d U8, A0, 0x00
vfmadd.d D0, U0, U4, D0
vldrepl.d U12, B0, 0x00
addi.d A0, A0, 0x08
addi.d B0, B0, 0x08
.endm
.macro KERNEL2x1x1_END
vldrepl.d U0, A0, 0x00
vfmadd.d D0, U8, U12, D0
vldrepl.d U4, B0, 0x00
addi.d A0, A0, 0x08
addi.d B0, B0, 0x08
vfmadd.d D0, U0, U4, D0
.endm
.macro KERNEL8x1x1
.rept 4
KERNEL2x1x1
.endr
.endm
.macro KERNEL8x1x1_END
.rept 3
KERNEL2x1x1
.endr
KERNEL2x1x1_END
.endm
PROLOGUE
addi.d $sp, $sp, -112
/* Store regs */
SDARG $r23, $sp, 0
SDARG $r24, $sp, 8
SDARG $r25, $sp, 16
SDARG $r26, $sp, 24
SDARG $r27, $sp, 32
ST $f24, $sp, 40
ST $f25, $sp, 48
ST $f26, $sp, 56
ST $f27, $sp, 64
ST $f28, $sp, 72
ST $f29, $sp, 80
ST $f30, $sp, 88
ST $f31, $sp, 96
ST ALPHA, $sp, 104
#if defined (TRMMKERNEL) && !defined(LEFT)
sub.d OFF, ZERO, OFFSET
#else
xor OFF, OFF, OFF
#endif
/* if (!(N >> 2)) goto L_N3 */
srai.d J, N, 2 /* J = bn >> 2 */
andi N, N, 0x03
vldrepl.d VALPHA, $sp, 104 /* When N < 4, VALPHA will not changed */
beq ZERO, J, .L_N3
.L_J1: /* J-- && This loop include Condition 1 */
/************************* Condition 1 if((N >> 2) && (M >> 3)) START !!! *************************
* dgemm_core_16x4 */
move C0, C
move A0, A
slli.d T0, LDC, 3
add.d C1, C0, T0
addi.d J, J, -1 /* J-- */
add.d C2, C1, T0
add.d C3, C2, T0
#if defined(TRMMKERNEL) && defined(LEFT)
move OFF, OFFSET
#endif
/* if (!(M >> 3)) goto L_M8 */
srai.d I, M, 3 /* I = bm >> 3 */
beq ZERO, I, .L_M8
.L_I1: /* I-- */
#if defined(TRMMKERNEL)
#if (defined(LEFT) && defined(TRANSA)) || (!defined(LEFT) && !defined(TRANSA))
move B0, B
#else
slli.d T0, OFF, 0x06
add.d A0, A0, T0
slli.d T0, OFF, 0x05
add.d B0, B, T0
#endif
#if (defined(LEFT) && !defined(TRANSA)) || (!defined(LEFT) && defined(TRANSA))
sub.d L, K, OFF
#elif defined(LEFT)
/* number of values in A */
addi.d L, OFF, 8
#else
/* number of values in B */
addi.d L, OFF, 4
#endif
#else // #if !defined(TRMMKERNEL)
move B0, B
move L, K /* L = bk */
#endif
/* Calculate the first set of D0~D15,
* avoidig set 0 operation
* Load 8 * 64 from A0
* U0 = {a1, a0}
* U1 = {a3, a2}
* U2 = {a5, a4}
* U3 = {a7, a6}
*/
vld U0, A0, 0x00
vld U1, A0, 0x10
vld U2, A0, 0x20
vld U3, A0, 0x30
vldrepl.d U4, B0, 0x00
preld 0, C0, 0x00
/* line 1 */
vfmul.d D0, U0, U4
vfmul.d D1, U1, U4
preld 0, C0, 0x20
vfmul.d D2, U2, U4
vfmul.d D3, U3, U4
vldrepl.d U5, B0, 0x08
preld 0, C1, 0x00
/* line 2 */
vfmul.d D4, U0, U5
vfmul.d D5, U1, U5
preld 0, C1, 0x20
vfmul.d D6, U2, U5
vfmul.d D7, U3, U5
vldrepl.d U6, B0, 0x10
preld 0, C2, 0x00
/* line 3 */
vfmul.d D8, U0, U6
vfmul.d D9, U1, U6
preld 0, C2, 0x20
vfmul.d D10, U2, U6
vfmul.d D11, U3, U6