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loongarch64: Add c/znrm2 optimization functions.

tags/v0.3.26
Hao Chen Shiyou Yin 2 years ago
parent
fbd612f8c4
commit
3c53ded315
6 changed files with 818 additions and 0 deletions
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  1. +2
    -0
      kernel/loongarch64/KERNEL.LOONGSON2K1000
  2. +2
    -0
      kernel/loongarch64/KERNEL.LOONGSON3R5
  3. +147
    -0
      kernel/loongarch64/cnrm2_lasx.S
  4. +155
    -0
      kernel/loongarch64/cnrm2_lsx.S
  5. +252
    -0
      kernel/loongarch64/znrm2_lasx.S
  6. +260
    -0
      kernel/loongarch64/znrm2_lsx.S

+ 2
- 0
kernel/loongarch64/KERNEL.LOONGSON2K1000 View File

@@ -70,6 +70,8 @@ DROTKERNEL = rot_lsx.S

SNRM2KERNEL = snrm2_lsx.S
DNRM2KERNEL = dnrm2_lsx.S
CNRM2KERNEL = cnrm2_lsx.S
ZNRM2KERNEL = znrm2_lsx.S

DGEMMKERNEL = dgemm_kernel_8x4.S
DGEMMINCOPY = dgemm_ncopy_8_lsx.S


+ 2
- 0
kernel/loongarch64/KERNEL.LOONGSON3R5 View File

@@ -70,6 +70,8 @@ DROTKERNEL = rot_lasx.S

SNRM2KERNEL = snrm2_lasx.S
DNRM2KERNEL = dnrm2_lasx.S
CNRM2KERNEL = cnrm2_lasx.S
ZNRM2KERNEL = znrm2_lasx.S

DGEMMKERNEL = dgemm_kernel_16x4.S
DGEMMINCOPY = dgemm_ncopy_16.S


+ 147
- 0
kernel/loongarch64/cnrm2_lasx.S View File

@@ -0,0 +1,147 @@
/***************************************************************************
Copyright (c) 2023, 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"

#define N $r4
#define X $r5
#define INCX $r6
#define I $r17
#define TEMP $r18
#define t1 $r12
#define t2 $r13
#define t3 $r14
#define t4 $r15
#define a1 $f15
#define a2 $f16
#define res $f19
#define VX0 $xr15
#define VX1 $xr16
#define VX2 $xr17
#define VX3 $xr18
#define VX4 $xr21
#define res1 $xr19
#define res2 $xr20

PROLOGUE

#ifdef F_INTERFACE
LDINT N, 0(N)
LDINT INCX, 0(INCX)
#endif

xvxor.v res1, res1, res1
xvxor.v res2, res2, res2
bge $r0, N, .L999
beq $r0, INCX, .L999
li.d TEMP, SIZE
slli.d INCX, INCX, ZBASE_SHIFT
srai.d I, N, 2
bne INCX, TEMP, .L20
bge $r0, I, .L997
.align 3

.L10:
xvld VX0, X, 0 * SIZE
xvfcvtl.d.s VX1, VX0
xvfcvth.d.s VX2, VX0
xvfmadd.d res1, VX1, VX1, res1
xvfmadd.d res2, VX2, VX2, res2
addi.d I, I, -1
addi.d X, X, 8 * SIZE
blt $r0, I, .L10
.align 3
b .L996

.L20:
bge $r0, I, .L997
.align 3

.L21:
ld.w t1, X, 0 * SIZE
ld.w t2, X, 1 * SIZE
add.d X, X, INCX
ld.w t3, X, 0 * SIZE
ld.w t4, X, 1 * SIZE
add.d X, X, INCX
xvinsgr2vr.w VX0, t1, 0
xvinsgr2vr.w VX0, t2, 1
xvinsgr2vr.w VX0, t3, 2
xvinsgr2vr.w VX0, t4, 3
ld.w t1, X, 0 * SIZE
ld.w t2, X, 1 * SIZE
add.d X, X, INCX
ld.w t3, X, 0 * SIZE
ld.w t4, X, 1 * SIZE
xvinsgr2vr.w VX0, t1, 4
xvinsgr2vr.w VX0, t2, 5
xvinsgr2vr.w VX0, t3, 6
xvinsgr2vr.w VX0, t4, 7
add.d X, X, INCX
xvfcvtl.d.s VX1, VX0
xvfcvth.d.s VX2, VX0
xvfmadd.d res1, VX1, VX1, res1
xvfmadd.d res2, VX2, VX2, res2
addi.d I, I, -1
blt $r0, I, .L21
b .L996

.L996:
xvfadd.d res1, res1, res2
xvpickve.d VX1, res1, 1
xvpickve.d VX2, res1, 2
xvpickve.d VX3, res1, 3
xvfadd.d res1, VX1, res1
xvfadd.d res1, VX2, res1
xvfadd.d res1, VX3, res1
.align 3

.L997:
andi I, N, 3
bge $r0, I, .L999
.align 3

.L998:
fld.s a1, X, 0 * SIZE
fld.s a2, X, 1 * SIZE
addi.d I, I, -1
fcvt.d.s a1, a1
fcvt.d.s a2, a2
fmadd.d res, a1, a1, res
fmadd.d res, a2, a2, res
add.d X, X, INCX
blt $r0, I, .L998
.align 3

.L999:
fsqrt.d res, res
move $r4, $r17
fcvt.s.d $f0, res
jirl $r0, $r1, 0x0

EPILOGUE

+ 155
- 0
kernel/loongarch64/cnrm2_lsx.S View File

@@ -0,0 +1,155 @@
/***************************************************************************
Copyright (c) 2023, 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"

#define N $r4
#define X $r5
#define INCX $r6
#define I $r17
#define TEMP $r18
#define t1 $r12
#define t2 $r13
#define t3 $r14
#define t4 $r15
#define a1 $f15
#define a2 $f16
#define res $f19
#define VX0 $vr15
#define VX1 $vr16
#define VX2 $vr17
#define VX3 $vr18
#define VX4 $vr21
#define res1 $vr19
#define res2 $vr20

PROLOGUE

#ifdef F_INTERFACE
LDINT N, 0(N)
LDINT INCX, 0(INCX)
#endif

vxor.v res1, res1, res1
vxor.v res2, res2, res2
bge $r0, N, .L999
beq $r0, INCX, .L999
li.d TEMP, 1
slli.d TEMP, TEMP, ZBASE_SHIFT
slli.d INCX, INCX, ZBASE_SHIFT
srai.d I, N, 2
bne INCX, TEMP, .L20
bge $r0, I, .L997
.align 3

.L10:
vld VX0, X, 0 * SIZE
vfcvtl.d.s VX1, VX0
vfcvth.d.s VX2, VX0
vfmadd.d res1, VX1, VX1, res1
vfmadd.d res2, VX2, VX2, res2
vld VX0, X, 4 * SIZE
vfcvtl.d.s VX3, VX0
vfcvth.d.s VX4, VX0
vfmadd.d res1, VX3, VX3, res1
vfmadd.d res2, VX4, VX4, res2
addi.d I, I, -1
addi.d X, X, 8 * SIZE
blt $r0, I, .L10
b .L996
.align 3

.L20:
bge $r0, I, .L997
.align 3

.L21:
ld.w t1, X, 0 * SIZE
ld.w t2, X, 1 * SIZE
add.d X, X, INCX
ld.w t3, X, 0 * SIZE
ld.w t4, X, 1 * SIZE
vinsgr2vr.w VX0, t1, 0
vinsgr2vr.w VX0, t2, 1
vinsgr2vr.w VX0, t3, 2
vinsgr2vr.w VX0, t4, 3
add.d X, X, INCX
vfcvtl.d.s VX1, VX0
vfcvth.d.s VX2, VX0
vfmadd.d res1, VX1, VX1, res1
vfmadd.d res2, VX2, VX2, res2
ld.w t1, X, 0 * SIZE
ld.w t2, X, 1 * SIZE
add.d X, X, INCX
ld.w t3, X, 0 * SIZE
ld.w t4, X, 1 * SIZE
vinsgr2vr.w VX0, t1, 0
vinsgr2vr.w VX0, t2, 1
vinsgr2vr.w VX0, t3, 2
vinsgr2vr.w VX0, t4, 3
add.d X, X, INCX
vfcvtl.d.s VX3, VX0
vfcvth.d.s VX4, VX0
vfmadd.d res1, VX3, VX3, res1
vfmadd.d res2, VX4, VX4, res2
addi.d I, I, -1
blt $r0, I, .L21
b .L996
.align 3

.L996:
vfadd.d res1, res1, res2
vreplvei.d VX1, res1, 1
vfadd.d res1, VX1, res1
.align 3

.L997:
andi I, N, 3
bge $r0, I, .L999
.align 3

.L998:
fld.s a1, X, 0 * SIZE
fld.s a2, X, 1 * SIZE
addi.d I, I, -1
fcvt.d.s a1, a1
fcvt.d.s a2, a2
fmadd.d res, a1, a1, res
fmadd.d res, a2, a2, res
add.d X, X, INCX
blt $r0, I, .L998
.align 3

.L999:
fsqrt.d res, res
move $r4, $r17
fcvt.s.d $f0, $f19
jirl $r0, $r1, 0x0
.align 3

EPILOGUE

+ 252
- 0
kernel/loongarch64/znrm2_lasx.S View File

@@ -0,0 +1,252 @@
/***************************************************************************
Copyright (c) 2023, 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"

#define N $r4
#define X $r5
#define INCX $r6
#define XX $r19
#define I $r17
#define TEMP $r18
#define t1 $r12
#define t2 $r13
#define t3 $r14
#define t4 $r15
#define INF $f23
#define a1 $f22
#define max $f17
#define ALPHA $f12
#define a3 $f15
#define a2 $f16
#define VX0 $xr15
#define VX1 $xr16
#define VM0 $xr17
#define VM1 $xr18
#define VM2 $xr13
#define VM3 $xr14
#define res1 $xr19
#define res2 $xr20
#define VALPHA $xr21


PROLOGUE

#ifdef F_INTERFACE
LDINT N, 0(N)
LDINT INCX, 0(INCX)
#endif

xvxor.v res1, res1, res1
xvxor.v res2, res2, res2
xvxor.v VM0, VM0, VM0
bge $r0, N, .L999
beq $r0, INCX, .L999
move XX, X
// Init INF
addi.d TEMP, $r0, 0x7FF
slli.d TEMP, TEMP, 52
MTC INF, TEMP
li.d TEMP, 1
slli.d TEMP, TEMP, ZBASE_SHIFT
slli.d INCX, INCX, ZBASE_SHIFT
srai.d I, N, 2
bne INCX, TEMP, .L20
bge $r0, I, .L97
.align 3

.L10:
xvld VX0, X, 0 * SIZE
xvld VX1, X, 4 * SIZE
xvfmaxa.d VM1, VX1, VX0
xvfmaxa.d VM0, VM0, VM1
addi.d I, I, -1
addi.d X, X, 8 * SIZE
blt $r0, I, .L10
b .L96
.align 3

.L20: // INCX!=1
bge $r0, I, .L97
.align 3

.L21:
ld.d t1, X, 0 * SIZE
ld.d t2, X, 1 * SIZE
add.d X, X, INCX
ld.d t3, X, 0 * SIZE
ld.d t4, X, 1 * SIZE
add.d X, X, INCX
xvinsgr2vr.d VX0, t1, 0
xvinsgr2vr.d VX0, t2, 1
xvinsgr2vr.d VX0, t3, 2
xvinsgr2vr.d VX0, t4, 3
ld.d t1, X, 0 * SIZE
ld.d t2, X, 1 * SIZE
add.d X, X, INCX
ld.d t3, X, 0 * SIZE
ld.d t4, X, 1 * SIZE
xvinsgr2vr.d VX1, t1, 0
xvinsgr2vr.d VX1, t2, 1
xvinsgr2vr.d VX1, t3, 2
xvinsgr2vr.d VX1, t4, 3
add.d X, X, INCX
xvfmaxa.d VM1, VX0, VX1
xvfmaxa.d VM0, VM0, VM1
addi.d I, I, -1
blt $r0, I, .L21
b .L96
.align 3

.L96:
xvpickve.d VX0, VM0, 1
xvpickve.d VX1, VM0, 2
xvpickve.d VM3, VM0, 3
xvfmaxa.d VM1, VX0, VX1
xvfmaxa.d VM2, VM3, VM0
xvfmaxa.d VM0, VM1, VM2
.align 3

.L97:
andi I, N, 3
bge $r0, I, .L99
.align 3

.L98:
fld.d a3, X, 0 * SIZE
fld.d a2, X, 1 * SIZE
fmaxa.d a3, a2, a3
fmaxa.d max, a3, max
addi.d I, I, -1
add.d X, X, INCX
blt $r0, I, .L98
.align 3

.L99:
fabs.d max, max
lu12i.w TEMP, 0x3f800 // 1
movgr2fr.d a1, $r0
movgr2fr.w ALPHA, TEMP
CMPEQ $fcc0, max, a1
fcvt.d.s ALPHA, ALPHA
bcnez $fcc0, .L999
fdiv.d ALPHA, ALPHA, max
CMPEQ $fcc0, INF, ALPHA
bcnez $fcc0, .L999
movfr2gr.d TEMP, ALPHA
xvreplgr2vr.d VALPHA, TEMP

.L100:
li.d TEMP, 1
slli.d TEMP, TEMP, ZBASE_SHIFT
srai.d I, N, 2
bne INCX, TEMP, .L120
bge $r0, I, .L997
.align 3

.L110:
xvld VX0, XX, 0 * SIZE
xvld VX1, XX, 4 * SIZE
xvfmul.d VM2, VX0, VALPHA
xvfmul.d VM3, VX1, VALPHA
xvfmadd.d res1, VM2, VM2, res1
xvfmadd.d res2, VM3, VM3, res2
addi.d XX, XX, 8 * SIZE
addi.d I, I, -1
blt $r0, I, .L110
b .L996
.align 3

.L120:
bge $r0, I, .L997
.align 3

.L121:
ld.d t1, XX, 0 * SIZE
ld.d t2, XX, 1 * SIZE
add.d XX, XX, INCX
ld.d t3, XX, 0 * SIZE
ld.d t4, XX, 1 * SIZE
add.d XX, XX, INCX
xvinsgr2vr.d VX0, t1, 0
xvinsgr2vr.d VX0, t2, 1
xvinsgr2vr.d VX0, t3, 2
xvinsgr2vr.d VX0, t4, 3
ld.d t1, XX, 0 * SIZE
ld.d t2, XX, 1 * SIZE
add.d XX, XX, INCX
ld.d t3, XX, 0 * SIZE
ld.d t4, XX, 1 * SIZE
add.d XX, XX, INCX
xvinsgr2vr.d VX1, t1, 0
xvinsgr2vr.d VX1, t2, 1
xvinsgr2vr.d VX1, t3, 2
xvinsgr2vr.d VX1, t4, 3
xvfmul.d VM2, VX0, VALPHA
xvfmul.d VM3, VX1, VALPHA
xvfmadd.d res1, VM2, VM2, res1
xvfmadd.d res2, VM3, VM3, res2
addi.d I, I, -1
blt $r0, I, .L121
b .L996
.align 3

.L996:
xvfadd.d res1, res1, res2
xvpickve.d VX0, res1, 1
xvpickve.d VX1, res1, 2
xvpickve.d VM2, res1, 3
xvfadd.d res1, VX0, res1
xvfadd.d VX1, VX1, VM2
xvfadd.d res1, VX1, res1
.align 3

.L997:
andi I, N, 3
bge $r0, I, .L999
.align 3

.L998:
fld.d a3, XX, 0 * SIZE
fld.d a2, XX, 1 * SIZE
addi.d I, I, -1
fmul.d a3, a3, ALPHA
fmadd.d $f19, a3, a3, $f19
fmul.d a2, a2, ALPHA
fmadd.d $f19, a2, a2, $f19
add.d XX, XX , INCX
blt $r0, I, .L998
.align 3

.L999:
fsqrt.d $f19, $f19
fmul.d $f0, max, $f19
jirl $r0, $r1, 0x0
.align 3

EPILOGUE

+ 260
- 0
kernel/loongarch64/znrm2_lsx.S View File

@@ -0,0 +1,260 @@
/***************************************************************************
Copyright (c) 2023, 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"

#define N $r4
#define X $r5
#define INCX $r6
#define XX $r19
#define I $r17
#define TEMP $r18
#define t1 $r12
#define t2 $r13
#define t3 $r14
#define t4 $r15
#define INF $f23
#define a1 $f22
#define max $f17
#define ALPHA $f12
#define a3 $f15
#define a2 $f16
#define VX0 $vr15
#define VX1 $vr16
#define VM0 $vr17
#define VM1 $vr18
#define VM2 $vr13
#define VM3 $vr14
#define res1 $vr19
#define res2 $vr20
#define VALPHA $vr21


PROLOGUE

#ifdef F_INTERFACE
LDINT N, 0(N)
LDINT INCX, 0(INCX)
#endif

vxor.v res1, res1, res1
vxor.v res2, res2, res2
vxor.v VM0, VM0, VM0
bge $r0, N, .L999
beq $r0, INCX, .L999
move XX, X
// Init INF
addi.d TEMP, $r0, 0x7FF
slli.d TEMP, TEMP, 52
MTC INF, TEMP
li.d TEMP, 1
slli.d TEMP, TEMP, ZBASE_SHIFT
slli.d INCX, INCX, ZBASE_SHIFT
srai.d I, N, 2
bne INCX, TEMP, .L20
bge $r0, I, .L97
.align 3

.L10:
vld VX0, X, 0 * SIZE
vld VX1, X, 2 * SIZE
vfmaxa.d VM1, VX1, VX0
vld VX0, X, 4 * SIZE
vld VX1, X, 6 * SIZE
vfmaxa.d VM2, VX1, VX0
vfmaxa.d VM3, VM1, VM2
vfmaxa.d VM0, VM0, VM3
addi.d I, I, -1
addi.d X, X, 8 * SIZE
blt $r0, I, .L10
b .L96
.align 3

.L20: // INCX!=1
bge $r0, I, .L97
.align 3

.L21:
ld.d t1, X, 0 * SIZE
ld.d t2, X, 1 * SIZE
add.d X, X, INCX
ld.d t3, X, 0 * SIZE
ld.d t4, X, 1 * SIZE
vinsgr2vr.d VX0, t1, 0
vinsgr2vr.d VX0, t2, 1
vinsgr2vr.d VX1, t3, 0
vinsgr2vr.d VX1, t4, 1
add.d X, X, INCX
vfmaxa.d VM1, VX0, VX1
ld.d t1, X, 0 * SIZE
ld.d t2, X, 1 * SIZE
add.d X, X, INCX
ld.d t3, X, 0 * SIZE
ld.d t4, X, 1 * SIZE
add.d X, X, INCX
vinsgr2vr.d VX0, t1, 0
vinsgr2vr.d VX0, t2, 1
vinsgr2vr.d VX1, t3, 0
vinsgr2vr.d VX1, t4, 1
vfmaxa.d VM2, VX0, VX1
vfmaxa.d VM3, VM1, VM2
vfmaxa.d VM0, VM0, VM3
addi.d I, I, -1
blt $r0, I, .L21
b .L96
.align 3

.L96:
vreplvei.d VX0, VM0, 0
vreplvei.d VX1, VM0, 1
vfmaxa.d VM0, VX0, VX1
.align 3

.L97:
andi I, N, 3
bge $r0, I, .L99
.align 3

.L98:
fld.d a3, X, 0 * SIZE
fld.d a2, X, 1 * SIZE
fmaxa.d a3, a2, a3
fmaxa.d max, a3, max
addi.d I, I, -1
add.d X, X, INCX
blt $r0, I, .L98
.align 3

.L99:
fabs.d max, max
lu12i.w TEMP, 0x3f800 // 1
movgr2fr.d a1, $r0
movgr2fr.w ALPHA, TEMP
CMPEQ $fcc0, max, a1
fcvt.d.s ALPHA, ALPHA
bcnez $fcc0, .L999
fdiv.d ALPHA, ALPHA, max
CMPEQ $fcc0, INF, ALPHA
bcnez $fcc0, .L999
movfr2gr.d TEMP, ALPHA
vreplgr2vr.d VALPHA, TEMP

.L100:
li.d TEMP, 1
slli.d TEMP, TEMP, ZBASE_SHIFT
srai.d I, N, 2
bne INCX, TEMP, .L120
bge $r0, I, .L997
.align 3

.L110:
vld VX0, XX, 0 * SIZE
vld VX1, XX, 2 * SIZE
vfmul.d VM2, VX0, VALPHA
vfmul.d VM3, VX1, VALPHA
vfmadd.d res1, VM2, VM2, res1
vfmadd.d res2, VM3, VM3, res2
vld VX0, XX, 4 * SIZE
vld VX1, XX, 6 * SIZE
vfmul.d VM2, VX0, VALPHA
vfmul.d VM3, VX1, VALPHA
vfmadd.d res1, VM2, VM2, res1
vfmadd.d res2, VM3, VM3, res2
addi.d XX, XX, 8 * SIZE
addi.d I, I, -1
blt $r0, I, .L110
b .L996
.align 3

.L120:
bge $r0, I, .L997
.align 3

.L121:
ld.d t1, XX, 0 * SIZE
ld.d t2, XX, 1 * SIZE
add.d XX, XX, INCX
ld.d t3, XX, 0 * SIZE
ld.d t4, XX, 1 * SIZE
add.d XX, XX, INCX
vinsgr2vr.d VX0, t1, 0
vinsgr2vr.d VX0, t2, 1
vinsgr2vr.d VX1, t3, 0
vinsgr2vr.d VX1, t4, 1
vfmul.d VM2, VX0, VALPHA
ld.d t1, XX, 0 * SIZE
vfmul.d VM3, VX1, VALPHA
ld.d t2, XX, 1 * SIZE
add.d XX, XX, INCX
vfmadd.d res1, VM2, VM2, res1
vfmadd.d res2, VM3, VM3, res2
ld.d t3, XX, 0 * SIZE
ld.d t4, XX, 1 * SIZE
add.d XX, XX, INCX
vinsgr2vr.d VX0, t1, 0
vinsgr2vr.d VX0, t2, 1
vinsgr2vr.d VX1, t3, 0
vinsgr2vr.d VX1, t4, 1
vfmul.d VM2, VX0, VALPHA
vfmul.d VM3, VX1, VALPHA
vfmadd.d res1, VM2, VM2, res1
vfmadd.d res2, VM3, VM3, res2
addi.d I, I, -1
blt $r0, I, .L121
b .L996
.align 3

.L996:
vfadd.d res1, res1, res2
vreplvei.d VX1, res1, 1
vfadd.d res1, VX1, res1
.align 3

.L997:
andi I, N, 3
bge $r0, I, .L999
.align 3

.L998:
fld.d a3, XX, 0 * SIZE
fld.d a2, XX, 1 * SIZE
addi.d I, I, -1
fmul.d a3, a3, ALPHA
fmadd.d $f19, a3, a3, $f19
fmul.d a2, a2, ALPHA
fmadd.d $f19, a2, a2, $f19
add.d XX, XX , INCX
blt $r0, I, .L998
.align 3

.L999:
fsqrt.d $f19, $f19
fmul.d $f0, max, $f19
jirl $r0, $r1, 0x0

EPILOGUE

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