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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. | |||||
| *****************************************************************************/ | |||||
| /************************************************************************************** | |||||
| * 2013/11/11 Saar | |||||
| * BLASTEST : OK | |||||
| * CTEST : OK (no test for dsdot) | |||||
| * TEST : OK (no test for dsdot) | |||||
| * | |||||
| **************************************************************************************/ | |||||
| #define ASSEMBLER | |||||
| #include "common.h" | |||||
| #define STACKSIZE 256 | |||||
| #define N r0 | |||||
| #define X r1 | |||||
| #define INC_X r2 | |||||
| #define OLD_Y r3 | |||||
| /****************************************************** | |||||
| * [fp, #-128] - [fp, #-64] is reserved | |||||
| * for store and restore of floating point | |||||
| * registers | |||||
| *******************************************************/ | |||||
| #define OLD_INC_Y [fp, #4 ] | |||||
| #define I r5 | |||||
| #define Y r6 | |||||
| #define INC_Y r7 | |||||
| #define X_PRE 512 | |||||
| /************************************************************************************** | |||||
| * Macro definitions | |||||
| **************************************************************************************/ | |||||
| #if defined(DSDOT) | |||||
| .macro KERNEL_F4 | |||||
| fldmias X!, { s14 } | |||||
| fldmias Y!, { s15 } | |||||
| vmul.f32 s15, s14, s15 | |||||
| vcvt.f64.f32 d16, s15 | |||||
| vadd.f64 d0 , d0, d16 | |||||
| fldmias X!, { s14 } | |||||
| fldmias Y!, { s15 } | |||||
| vmul.f32 s15, s14, s15 | |||||
| vcvt.f64.f32 d16, s15 | |||||
| vadd.f64 d0 , d0, d16 | |||||
| fldmias X!, { s14 } | |||||
| fldmias Y!, { s15 } | |||||
| vmul.f32 s15, s14, s15 | |||||
| vcvt.f64.f32 d16, s15 | |||||
| vadd.f64 d0 , d0, d16 | |||||
| fldmias X!, { s14 } | |||||
| fldmias Y!, { s15 } | |||||
| vmul.f32 s15, s14, s15 | |||||
| vcvt.f64.f32 d16, s15 | |||||
| vadd.f64 d0 , d0, d16 | |||||
| .endm | |||||
| .macro KERNEL_F1 | |||||
| fldmias X!, { s14 } | |||||
| fldmias Y!, { s15 } | |||||
| vmul.f32 s15, s14, s15 | |||||
| vcvt.f64.f32 d16, s15 | |||||
| vadd.f64 d0 , d0, d16 | |||||
| .endm | |||||
| .macro KERNEL_S4 | |||||
| nop | |||||
| fldmias X, { s14 } | |||||
| fldmias Y, { s15 } | |||||
| vmul.f32 s15, s14, s15 | |||||
| vcvt.f64.f32 d16, s15 | |||||
| vadd.f64 d0 , d0, d16 | |||||
| add X, X, INC_X | |||||
| add Y, Y, INC_Y | |||||
| fldmias X, { s14 } | |||||
| fldmias Y, { s15 } | |||||
| vmul.f32 s15, s14, s15 | |||||
| vcvt.f64.f32 d16, s15 | |||||
| vadd.f64 d0 , d0, d16 | |||||
| add X, X, INC_X | |||||
| add Y, Y, INC_Y | |||||
| fldmias X, { s14 } | |||||
| fldmias Y, { s15 } | |||||
| vmul.f32 s15, s14, s15 | |||||
| vcvt.f64.f32 d16, s15 | |||||
| vadd.f64 d0 , d0, d16 | |||||
| add X, X, INC_X | |||||
| add Y, Y, INC_Y | |||||
| fldmias X, { s14 } | |||||
| fldmias Y, { s15 } | |||||
| vmul.f32 s15, s14, s15 | |||||
| vcvt.f64.f32 d16, s15 | |||||
| vadd.f64 d0 , d0, d16 | |||||
| add X, X, INC_X | |||||
| add Y, Y, INC_Y | |||||
| .endm | |||||
| .macro KERNEL_S1 | |||||
| fldmias X, { s14 } | |||||
| fldmias Y, { s15 } | |||||
| vmul.f32 s15, s14, s15 | |||||
| vcvt.f64.f32 d16, s15 | |||||
| vadd.f64 d0 , d0, d16 | |||||
| add X, X, INC_X | |||||
| add Y, Y, INC_Y | |||||
| .endm | |||||
| #else | |||||
| .macro KERNEL_F4 | |||||
| fldmias X!, { s8 - s9 } | |||||
| fldmias Y!, { s4 - s5} | |||||
| fmacs s0 , s4, s8 | |||||
| fldmias X!, { s10 - s11 } | |||||
| fmacs s1 , s5, s9 | |||||
| fldmias Y!, { s6 - s7 } | |||||
| fmacs s0 , s6, s10 | |||||
| fmacs s1 , s7, s11 | |||||
| .endm | |||||
| .macro KERNEL_F1 | |||||
| fldmias X!, { s4 } | |||||
| fldmias Y!, { s8 } | |||||
| fmacs s0 , s4, s8 | |||||
| .endm | |||||
| .macro KERNEL_S4 | |||||
| nop | |||||
| fldmias X, { s4 } | |||||
| fldmias Y, { s8 } | |||||
| add X, X, INC_X | |||||
| add Y, Y, INC_Y | |||||
| fmacs s0 , s4, s8 | |||||
| fldmias X, { s5 } | |||||
| fldmias Y, { s9 } | |||||
| add X, X, INC_X | |||||
| add Y, Y, INC_Y | |||||
| fmacs s1 , s5, s9 | |||||
| fldmias X, { s6 } | |||||
| fldmias Y, { s10 } | |||||
| add X, X, INC_X | |||||
| add Y, Y, INC_Y | |||||
| fmacs s0 , s6, s10 | |||||
| fldmias X, { s7 } | |||||
| fldmias Y, { s11 } | |||||
| add X, X, INC_X | |||||
| add Y, Y, INC_Y | |||||
| fmacs s1 , s7, s11 | |||||
| .endm | |||||
| .macro KERNEL_S1 | |||||
| fldmias X, { s4 } | |||||
| fldmias Y, { s8 } | |||||
| add X, X, INC_X | |||||
| fmacs s0 , s4, s8 | |||||
| add Y, Y, INC_Y | |||||
| .endm | |||||
| #endif | |||||
| /************************************************************************************** | |||||
| * End of macro definitions | |||||
| **************************************************************************************/ | |||||
| PROLOGUE | |||||
| .align 5 | |||||
| push {r4 - r9, fp} | |||||
| add fp, sp, #24 | |||||
| sub sp, sp, #STACKSIZE // reserve stack | |||||
| sub r4, fp, #128 | |||||
| vstm r4, { s8 - s15 } // store floating point registers | |||||
| mov Y, OLD_Y | |||||
| ldr INC_Y, OLD_INC_Y | |||||
| #if defined(DSDOT) | |||||
| vsub.f64 d0 , d0 , d0 | |||||
| vsub.f64 d1 , d1 , d1 | |||||
| #else | |||||
| vsub.f32 s0 , s0 , s0 | |||||
| vsub.f32 s1 , s1 , s1 | |||||
| #endif | |||||
| cmp N, #0 | |||||
| ble sdot_kernel_L999 | |||||
| cmp INC_X, #0 | |||||
| beq sdot_kernel_L999 | |||||
| cmp INC_Y, #0 | |||||
| beq sdot_kernel_L999 | |||||
| cmp INC_X, #1 | |||||
| bne sdot_kernel_S_BEGIN | |||||
| cmp INC_Y, #1 | |||||
| bne sdot_kernel_S_BEGIN | |||||
| sdot_kernel_F_BEGIN: | |||||
| asrs I, N, #2 // I = N / 4 | |||||
| ble sdot_kernel_F1 | |||||
| sdot_kernel_F4: | |||||
| KERNEL_F4 | |||||
| subs I, I, #1 | |||||
| bne sdot_kernel_F4 | |||||
| sdot_kernel_F1: | |||||
| ands I, N, #3 | |||||
| ble sdot_kernel_L999 | |||||
| sdot_kernel_F10: | |||||
| KERNEL_F1 | |||||
| subs I, I, #1 | |||||
| bne sdot_kernel_F10 | |||||
| b sdot_kernel_L999 | |||||
| sdot_kernel_S_BEGIN: | |||||
| lsl INC_X, INC_X, #2 // INC_X * SIZE | |||||
| lsl INC_Y, INC_Y, #2 // INC_Y * SIZE | |||||
| asrs I, N, #2 // I = N / 4 | |||||
| ble sdot_kernel_S1 | |||||
| sdot_kernel_S4: | |||||
| KERNEL_S4 | |||||
| subs I, I, #1 | |||||
| bne sdot_kernel_S4 | |||||
| sdot_kernel_S1: | |||||
| ands I, N, #3 | |||||
| ble sdot_kernel_L999 | |||||
| sdot_kernel_S10: | |||||
| KERNEL_S1 | |||||
| subs I, I, #1 | |||||
| bne sdot_kernel_S10 | |||||
| sdot_kernel_L999: | |||||
| sub r3, fp, #128 | |||||
| vldm r3, { s8 - s15} // restore floating point registers | |||||
| #if defined(DSDOT) | |||||
| vadd.f64 d0 , d0, d1 // set return value | |||||
| #else | |||||
| vadd.f32 s0 , s0, s1 // set return value | |||||
| #endif | |||||
| sub sp, fp, #24 | |||||
| pop {r4 - r9, fp} | |||||
| bx lr | |||||
| EPILOGUE | |||||