259 lines
5.1 KiB
ArmAsm
259 lines
5.1 KiB
ArmAsm
/*******************************************************************************
|
|
Copyright (c) 2015, 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 x0 /* vector length */
|
|
#define X x3 /* X vector address */
|
|
#define X_COPY x5 /* X vector address */
|
|
#define INC_X x4 /* X stride */
|
|
#define I x1 /* loop variable */
|
|
#define FLAG x9
|
|
/*******************************************************************************
|
|
* Macro definitions
|
|
*******************************************************************************/
|
|
|
|
#if !defined(DOUBLE)
|
|
#define DA s0 /* scale input value */
|
|
#define DAV {v0.s}[0]
|
|
#define TMPF s1
|
|
#define TMPVF {v1.s}[0]
|
|
#define SZ 4
|
|
#else
|
|
#define DA d0 /* scale input value */
|
|
#define DAV {v0.d}[0]
|
|
#define TMPF d1
|
|
#define TMPVF {v1.d}[0]
|
|
#define SZ 8
|
|
#endif
|
|
|
|
/******************************************************************************/
|
|
|
|
.macro KERNEL_F1
|
|
|
|
ldr TMPF, [X]
|
|
fmul TMPF, TMPF, DA
|
|
str TMPF, [X], #SZ
|
|
|
|
.endm
|
|
|
|
.macro KERNEL_INIT_F8
|
|
|
|
#if !defined(DOUBLE)
|
|
ins v0.s[1], v0.s[0]
|
|
ins v0.s[2], v0.s[0]
|
|
ins v0.s[3], v0.s[0]
|
|
#else
|
|
ins v0.d[1], v0.d[0]
|
|
#endif
|
|
|
|
.endm
|
|
|
|
.macro KERNEL_F8
|
|
#if !defined(DOUBLE)
|
|
ld1 {v1.4s, v2.4s}, [X]
|
|
fmul v1.4s, v1.4s, v0.4s
|
|
fmul v2.4s, v2.4s, v0.4s
|
|
st1 {v1.4s, v2.4s}, [X], #32
|
|
#else // DOUBLE
|
|
ld1 {v1.2d, v2.2d, v3.2d, v4.2d}, [X]
|
|
fmul v1.2d, v1.2d, v0.2d
|
|
fmul v2.2d, v2.2d, v0.2d
|
|
fmul v3.2d, v3.2d, v0.2d
|
|
fmul v4.2d, v4.2d, v0.2d
|
|
st1 {v1.2d, v2.2d, v3.2d, v4.2d}, [X], #64
|
|
#endif
|
|
PRFM PLDL1KEEP, [X, #1024]
|
|
.endm
|
|
|
|
.macro INIT_S
|
|
|
|
#if !defined(DOUBLE)
|
|
lsl INC_X, INC_X, #2
|
|
#else
|
|
lsl INC_X, INC_X, #3
|
|
#endif
|
|
|
|
.endm
|
|
|
|
.macro KERNEL_S1
|
|
ldr TMPF, [X]
|
|
fmul TMPF, TMPF, DA
|
|
st1 TMPVF, [X], INC_X
|
|
.endm
|
|
|
|
.macro KERNEL_S4
|
|
#if !defined(DOUBLE)
|
|
ldr s1, [X]
|
|
add X, X, INC_X
|
|
fmul s1, s1, s0
|
|
str s1, [X_COPY]
|
|
add X_COPY, X_COPY, INC_X
|
|
|
|
ldr s2, [X]
|
|
add X, X, INC_X
|
|
fmul s2, s2, s0
|
|
str s2, [X_COPY]
|
|
add X_COPY, X_COPY, INC_X
|
|
|
|
ldr s3, [X]
|
|
add X, X, INC_X
|
|
fmul s3, s3, s0
|
|
str s3, [X_COPY]
|
|
add X_COPY, X_COPY, INC_X
|
|
|
|
ldr s4, [X]
|
|
add X, X, INC_X
|
|
fmul s4, s4, s0
|
|
str s4, [X_COPY]
|
|
add X_COPY, X_COPY, INC_X
|
|
#else
|
|
ldr d1, [X]
|
|
add X, X, INC_X
|
|
fmul d1, d1, d0
|
|
str d1, [X_COPY]
|
|
add X_COPY, X_COPY, INC_X
|
|
|
|
ldr d2, [X]
|
|
add X, X, INC_X
|
|
fmul d2, d2, d0
|
|
str d2, [X_COPY]
|
|
add X_COPY, X_COPY, INC_X
|
|
|
|
ldr d3, [X]
|
|
add X, X, INC_X
|
|
fmul d3, d3, d0
|
|
str d3, [X_COPY]
|
|
add X_COPY, X_COPY, INC_X
|
|
|
|
ldr d4, [X]
|
|
add X, X, INC_X
|
|
fmul d4, d4, d0
|
|
str d4, [X_COPY]
|
|
add X_COPY, X_COPY, INC_X
|
|
#endif
|
|
.endm
|
|
|
|
/*******************************************************************************
|
|
* End of macro definitions
|
|
*******************************************************************************/
|
|
|
|
PROLOGUE
|
|
|
|
cmp N, xzr
|
|
ble .Lscal_kernel_L999
|
|
|
|
ldr FLAG, [sp]
|
|
cmp FLAG, #1
|
|
beq .Lscal_kernel_nansafe
|
|
|
|
fcmp DA, #0.0
|
|
beq .Lscal_kernel_zero
|
|
|
|
.Lscal_kernel_nansafe:
|
|
cmp INC_X, #1
|
|
bne .Lscal_kernel_S_BEGIN
|
|
|
|
.Lscal_kernel_F_BEGIN:
|
|
|
|
asr I, N, #3
|
|
cmp I, xzr
|
|
beq .Lscal_kernel_F1
|
|
|
|
KERNEL_INIT_F8
|
|
|
|
.Lscal_kernel_F8:
|
|
|
|
KERNEL_F8
|
|
|
|
subs I, I, #1
|
|
bne .Lscal_kernel_F8
|
|
|
|
.Lscal_kernel_F1:
|
|
|
|
ands I, N, #7
|
|
ble .Lscal_kernel_L999
|
|
|
|
.Lscal_kernel_F10:
|
|
|
|
KERNEL_F1
|
|
|
|
subs I, I, #1
|
|
bne .Lscal_kernel_F10
|
|
|
|
mov w0, wzr
|
|
ret
|
|
|
|
.Lscal_kernel_S_BEGIN:
|
|
|
|
INIT_S
|
|
mov X_COPY, X
|
|
|
|
asr I, N, #2
|
|
cmp I, xzr
|
|
ble .Lscal_kernel_S1
|
|
|
|
.Lscal_kernel_S4:
|
|
|
|
KERNEL_S4
|
|
|
|
subs I, I, #1
|
|
bne .Lscal_kernel_S4
|
|
|
|
.Lscal_kernel_S1:
|
|
|
|
ands I, N, #3
|
|
ble .Lscal_kernel_L999
|
|
|
|
.Lscal_kernel_S10:
|
|
|
|
KERNEL_S1
|
|
|
|
subs I, I, #1
|
|
bne .Lscal_kernel_S10
|
|
|
|
.Lscal_kernel_L999:
|
|
|
|
mov w0, wzr
|
|
ret
|
|
|
|
.Lscal_kernel_zero:
|
|
|
|
INIT_S
|
|
|
|
.Lscal_kernel_Z1:
|
|
|
|
st1 DAV, [X], INC_X
|
|
subs N, N, #1
|
|
bne .Lscal_kernel_Z1
|
|
|
|
mov w0, wzr
|
|
ret
|
|
|
|
EPILOGUE
|