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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 | |||