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swap_vfp.S
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/***************************************************************************
Copyright (c) 2013, 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.
*****************************************************************************/
/**************************************************************************************
* 2013/11/14 Saar
* BLASTEST : OK
* CTEST : OK
* TEST : OK
*
**************************************************************************************/
#define ASSEMBLER
#include "common.h"
#define STACKSIZE 256
#if !defined(__ARM_PCS_VFP)
#if !defined(COMPLEX)
#if !defined(DOUBLE)
#define OLD_X [fp, #0 ]
#define OLD_INC_X [fp, #4 ]
#define OLD_Y [fp, #8 ]
#define OLD_INC_Y [fp, #12 ]
#else
#define OLD_X [fp, #8 ]
#define OLD_INC_X [fp, #12]
#define OLD_Y [fp, #16]
#define OLD_INC_Y [fp, #20]
#endif
#else //COMPLEX
#if !defined(DOUBLE)
#define OLD_X [fp, #4 ]
#define OLD_INC_X [fp, #8 ]
#define OLD_Y [fp, #12 ]
#define OLD_INC_Y [fp, #16 ]
#else
#define OLD_X [fp, #16]
#define OLD_INC_X [fp, #20]
#define OLD_Y [fp, #24]
#define OLD_INC_Y [fp, #28]
#endif
#endif // !defined(__ARM_PCS_VFP)
#else
#define OLD_INC_X [fp, #0 ]
#define OLD_Y [fp, #4 ]
#define OLD_INC_Y [fp, #8 ]
#endif
#define N r0
#define Y r1
#define INC_X r2
#define X r3
#define INC_Y r4
#define I r12
#define X_PRE 512
/**************************************************************************************
* Macro definitions
**************************************************************************************/
/*****************************************************************************************/
#if !defined(COMPLEX)
#if defined(DOUBLE)
.macro KERNEL_F4
pld [ X, #X_PRE ]
pld [ Y, #X_PRE ]
vldmia.f64 X, { d0 - d3 }
vldmia.f64 Y, { d4 - d7 }
vstmia.f64 Y!, { d0 - d3 }
vstmia.f64 X!, { d4 - d7}
.endm
.macro KERNEL_F1
vldmia.f64 X, { d0 }
vldmia.f64 Y, { d4 }
vstmia.f64 Y!, { d0 }
vstmia.f64 X!, { d4 }
.endm
.macro KERNEL_S1
vldmia.f64 X, { d0 }
vldmia.f64 Y, { d4 }
vstmia.f64 Y, { d0 }
vstmia.f64 X, { d4 }
add X, X, INC_X
add Y, Y, INC_Y
.endm
#else
.macro KERNEL_F4
vldmia.f32 X, { s0 - s3 }
vldmia.f32 Y, { s4 - s7 }
vstmia.f32 Y!, { s0 - s3 }
vstmia.f32 X!, { s4 - s7}
.endm
.macro KERNEL_F1
vldmia.f32 X, { s0 }
vldmia.f32 Y, { s4 }
vstmia.f32 Y!, { s0 }
vstmia.f32 X!, { s4 }
.endm
.macro KERNEL_S1
vldmia.f32 X, { s0 }
vldmia.f32 Y, { s4 }
vstmia.f32 Y, { s0 }
vstmia.f32 X, { s4 }
add X, X, INC_X
add Y, Y, INC_Y
.endm
#endif
#else
#if defined(DOUBLE)
.macro KERNEL_F4
pld [ X, #X_PRE ]
pld [ Y, #X_PRE ]
vldmia.f64 X, { d0 - d3 }
vldmia.f64 Y, { d4 - d7 }
vstmia.f64 Y!, { d0 - d3 }
vstmia.f64 X!, { d4 - d7}
pld [ X, #X_PRE ]
pld [ Y, #X_PRE ]
vldmia.f64 X, { d0 - d3 }
vldmia.f64 Y, { d4 - d7 }
vstmia.f64 Y!, { d0 - d3 }
vstmia.f64 X!, { d4 - d7}
.endm
.macro KERNEL_F1
vldmia.f64 X, { d0 - d1 }
vldmia.f64 Y, { d4 - d5 }
vstmia.f64 Y!, { d0 - d1 }
vstmia.f64 X!, { d4 - d5 }
.endm
.macro KERNEL_S1
vldmia.f64 X, { d0 - d1 }
vldmia.f64 Y, { d4 - d5 }
vstmia.f64 Y, { d0 - d1 }
vstmia.f64 X, { d4 - d5 }
add X, X, INC_X
add Y, Y, INC_Y
.endm
#else
.macro KERNEL_F4
pld [ X, #X_PRE ]
pld [ Y, #X_PRE ]
vldmia.f32 X, { s0 - s3 }
vldmia.f32 Y, { s4 - s7 }
vstmia.f32 Y!, { s0 - s3 }
vstmia.f32 X!, { s4 - s7}
vldmia.f32 X, { s0 - s3 }
vldmia.f32 Y, { s4 - s7 }
vstmia.f32 Y!, { s0 - s3 }
vstmia.f32 X!, { s4 - s7}
.endm
.macro KERNEL_F1
vldmia.f32 X, { s0 - s1 }
vldmia.f32 Y, { s4 - s5 }
vstmia.f32 Y!, { s0 - s1 }
vstmia.f32 X!, { s4 - s5 }
.endm
.macro KERNEL_S1
vldmia.f32 X, { s0 - s1 }
vldmia.f32 Y, { s4 - s5 }
vstmia.f32 Y, { s0 - s1 }
vstmia.f32 X, { s4 - s5 }
add X, X, INC_X
add Y, Y, INC_Y
.endm
#endif
#endif
/**************************************************************************************
* End of macro definitions
**************************************************************************************/
PROLOGUE
.align 5
push {r4 , fp}
add fp, sp, #8
#if !defined(__ARM_PCS_VFP)
ldr X, OLD_X
#endif
ldr INC_X , OLD_INC_X
ldr Y, OLD_Y
ldr INC_Y , OLD_INC_Y
cmp N, #0
ble swap_kernel_L999
cmp INC_X, #0
beq swap_kernel_L999
cmp INC_Y, #0
beq swap_kernel_L999
cmp INC_X, #1
bne swap_kernel_S_BEGIN
cmp INC_Y, #1
bne swap_kernel_S_BEGIN
swap_kernel_F_BEGIN:
asrs I, N, #2 // I = N / 4
ble swap_kernel_F1
.align 5
swap_kernel_F4:
#if !defined(COMPLEX) && !defined(DOUBLE)
pld [ X, #X_PRE ]
pld [ Y, #X_PRE ]
#endif
KERNEL_F4
subs I, I, #1
ble swap_kernel_F1
KERNEL_F4
subs I, I, #1
bne swap_kernel_F4
swap_kernel_F1:
ands I, N, #3
ble swap_kernel_L999
swap_kernel_F10:
KERNEL_F1
subs I, I, #1
bne swap_kernel_F10
b swap_kernel_L999
swap_kernel_S_BEGIN:
#if defined(COMPLEX)
#if defined(DOUBLE)
lsl INC_X, INC_X, #4 // INC_X * SIZE * 2
lsl INC_Y, INC_Y, #4 // INC_Y * SIZE * 2
#else
lsl INC_X, INC_X, #3 // INC_X * SIZE * 2
lsl INC_Y, INC_Y, #3 // INC_Y * SIZE * 2
#endif
#else
#if defined(DOUBLE)
lsl INC_X, INC_X, #3 // INC_X * SIZE
lsl INC_Y, INC_Y, #3 // INC_Y * SIZE
#else
lsl INC_X, INC_X, #2 // INC_X * SIZE
lsl INC_Y, INC_Y, #2 // INC_Y * SIZE
#endif
#endif
asrs I, N, #2 // I = N / 4
ble swap_kernel_S1
.align 5
swap_kernel_S4:
KERNEL_S1
KERNEL_S1
KERNEL_S1
KERNEL_S1
subs I, I, #1
bne swap_kernel_S4
swap_kernel_S1:
ands I, N, #3
ble swap_kernel_L999
swap_kernel_S10:
KERNEL_S1
subs I, I, #1
bne swap_kernel_S10
swap_kernel_L999:
mov r0, #0 // set return value
sub sp, fp, #8
pop {r4,fp}
bx lr
EPILOGUE