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/*
* Copyright (c) 2017-2018 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifdef __aarch64__
#include <arm_neon.h>
#include "../../asmlib.hpp"
namespace arm_gemm {
void a64_gemm_s8_12x8_a55r1(const int8_t *Apanel, const int8_t *Bpanel, int32_t *Cpanel, const int ablocks, const int bblocks, const int K) {
const int8_t *a_ptr = Apanel;
int32_t *c_ptr = Cpanel;
// We divide K by 4 because the sdot instruction processes 4 elements at a time.
const int W = K/4;
// Fix up for odd lengths - set a flag if K is odd, but make
// sure we round up the iteration count.
const int oddk = (W & 1);
const int k_iters = ((W+1)/2) - 1;
for (int yb=0; yb<ablocks; yb++) {
const int8_t *a_ptr0 = a_ptr;
const int8_t *b_ptr = Bpanel;
for (int xb=0; xb<bblocks; xb++) {
a_ptr = a_ptr0;
int k = k_iters;
register int32x4_t a0 asm("v0");
register int32x4_t a1 asm("v1");
register int32x4_t b0 asm("v2");
register int32x4_t b1 asm("v3");
register int32x4_t b2 asm("v4");
register int32x4_t a0a asm("v5");
register int32x4_t a1a asm("v6");
__asm __volatile (
// Initialize result registers, load initial operands, prime prefetches.
"movi v8.4s, #0x0\n"
"ldr %q[a0], [%[a_ptr]]\n"
"movi v9.4s, #0x0\n"
"ldr %q[b0], [%[b_ptr]]\n"
"movi v10.4s, #0x0\n"
"ldr %q[a1], [%[a_ptr], #16]\n"
"movi v11.4s, #0x0\n"
"ldr %q[b1], [%[b_ptr], #16]\n"
"movi v12.4s, #0x0\n"
ASM_PREFETCH("[%[b_ptr], #64]")
"movi v13.4s, #0x0\n"
ASM_PREFETCH("[%[a_ptr], #64]")
"movi v14.4s, #0x0\n"
ASM_PREFETCH("[%[b_ptr], #128]")
"movi v15.4s, #0x0\n"
ASM_PREFETCH("[%[a_ptr], #128]")
"movi v16.4s, #0x0\n"
ASM_PREFETCH("[%[b_ptr], #192]")
"movi v17.4s, #0x0\n"
ASM_PREFETCH("[%[b_ptr], #256]")
"movi v18.4s, #0x0\n"
"movi v19.4s, #0x0\n"
ASM_PREFETCH("[%[a_ptr], #192]")
"movi v20.4s, #0x0\n"
"movi v21.4s, #0x0\n"
ASM_PREFETCH("[%[b_ptr], #320]")
"movi v22.4s, #0x0\n"
"movi v23.4s, #0x0\n"
ASM_PREFETCH("[%[a_ptr], #256]")
"movi v24.4s, #0x0\n"
"movi v25.4s, #0x0\n"
ASM_PREFETCH("[%[b_ptr], #384]")
"movi v26.4s, #0x0\n"
"movi v27.4s, #0x0\n"
ASM_PREFETCH("[%[b_ptr], #448]")
"movi v28.4s, #0x0\n"
"movi v29.4s, #0x0\n"
ASM_PREFETCH("[%[a_ptr], #384]")
"movi v30.4s, #0x0\n"
"movi v31.4s, #0x0\n"
ASM_PREFETCH("[%[b_ptr], #512]")
// The loop is offset by these two instructions which must
// always be executed.
".word 0x4f80e048 // sdot v8.4s , %[b0].16b, %[a0].4b[0]\n"
"ldr %d[b2], [%[b_ptr], #32]\n"
// Skip loop if we are doing zero iterations of it.
"cbz %w[k], 4f\n"
"1:\n"
".word 0x4fa0e049 // sdot v9.4s , %[b0].16b, %[a0].4b[1]\n"
"ldr x20, [%[b_ptr], #40]\n"
".word 0x4f80e84a // sdot v10.4s, %[b0].16b, %[a0].4b[2]\n"
"subs %w[k], %w[k], #1\n"
".word 0x4fa0e84b // sdot v11.4s, %[b0].16b, %[a0].4b[3]\n"
"ldr %d[a0a], [%[a_ptr], #32]\n"
".word 0x4f81e04c // sdot v12.4s, %[b0].16b, %[a1].4b[0]\n"
"ins %[b2].d[1], x20\n"
".word 0x4fa1e04d // sdot v13.4s, %[b0].16b, %[a1].4b[1]\n"
"ldr x20, [%[a_ptr], #40]\n"
".word 0x4f81e84e // sdot v14.4s, %[b0].16b, %[a1].4b[2]\n"
".word 0x4fa1e84f // sdot v15.4s, %[b0].16b, %[a1].4b[3]\n"
"ldr %d[a1a], [%[a_ptr], #48]\n"
".word 0x4f80e070 // sdot v16.4s, %[b1].16b, %[a0].4b[0]\n"
"ins %[a0a].d[1], x20\n"
".word 0x4fa0e071 // sdot v17.4s, %[b1].16b, %[a0].4b[1]\n"
"ldr x20, [%[a_ptr], #56]\n"
".word 0x4f80e872 // sdot v18.4s, %[b1].16b, %[a0].4b[2]\n"
".word 0x4fa0e873 // sdot v19.4s, %[b1].16b, %[a0].4b[3]\n"
"ldr %d[b0], [%[b_ptr], #48]\n"
".word 0x4f81e074 // sdot v20.4s, %[b1].16b, %[a1].4b[0]\n"
"ins %[a1a].d[1], x20\n"
".word 0x4fa1e075 // sdot v21.4s, %[b1].16b, %[a1].4b[1]\n"
"ldr x20, [%[b_ptr], #56]\n"
".word 0x4f81e876 // sdot v22.4s, %[b1].16b, %[a1].4b[2]\n"
".word 0x4fa1e877 // sdot v23.4s, %[b1].16b, %[a1].4b[3]\n"
"ldr %d[b1], [%[b_ptr], #64]\n"
".word 0x4f80e098 // sdot v24.4s, %[b2].16b, %[a0].4b[0]\n"
"ins %[b0].d[1], x20\n"
".word 0x4fa0e099 // sdot v25.4s, %[b2].16b, %[a0].4b[1]\n"
"ldr x20, [%[b_ptr], #72]\n"
".word 0x4f80e89a // sdot v26.4s, %[b2].16b, %[a0].4b[2]\n"
".word 0x4fa0e89b // sdot v27.4s, %[b2].16b, %[a0].4b[3]\n"
ASM_PREFETCH("[%[a_ptr], #448]")
".word 0x4f81e09c // sdot v28.4s, %[b2].16b, %[a1].4b[0]\n"
".word 0x4fa1e09d // sdot v29.4s, %[b2].16b, %[a1].4b[1]\n"
ASM_PREFETCH("[%[b_ptr], #576]")
".word 0x4f81e89e // sdot v30.4s, %[b2].16b, %[a1].4b[2]\n"
".word 0x4fa1e89f // sdot v31.4s, %[b2].16b, %[a1].4b[3]\n"
// Unroll 1
"ldr %d[b2], [%[b_ptr], #80]\n"
".word 0x4f85e048 // sdot v8.4s , %[b0].16b, %[a0a].4b[0]\n"
"ins %[b1].d[1], x20\n"
".word 0x4fa5e049 // sdot v9.4s , %[b0].16b, %[a0a].4b[1]\n"
"ldr x20, [%[b_ptr], #88]\n"
".word 0x4f85e84a // sdot v10.4s, %[b0].16b, %[a0a].4b[2]\n"
".word 0x4fa5e84b // sdot v11.4s, %[b0].16b, %[a0a].4b[3]\n"
"ldr %d[a0], [%[a_ptr], #64]\n"
".word 0x4f86e04c // sdot v12.4s, %[b0].16b, %[a1a].4b[0]\n"
"ins %[b2].d[1], x20\n"
".word 0x4fa6e04d // sdot v13.4s, %[b0].16b, %[a1a].4b[1]\n"
"ldr x20, [%[a_ptr], #72]\n"
".word 0x4f86e84e // sdot v14.4s, %[b0].16b, %[a1a].4b[2]\n"
".word 0x4fa6e84f // sdot v15.4s, %[b0].16b, %[a1a].4b[3]\n"
"ldr %d[a1], [%[a_ptr], #80]\n"
".word 0x4f85e070 // sdot v16.4s, %[b1].16b, %[a0a].4b[0]\n"
"ins %[a0].d[1], x20\n"
".word 0x4fa5e071 // sdot v17.4s, %[b1].16b, %[a0a].4b[1]\n"
"ldr x20, [%[a_ptr], #88]\n"
".word 0x4f85e872 // sdot v18.4s, %[b1].16b, %[a0a].4b[2]\n"
".word 0x4fa5e873 // sdot v19.4s, %[b1].16b, %[a0a].4b[3]\n"
"ldr %d[b0], [%[b_ptr], #96]\n"
".word 0x4f86e074 // sdot v20.4s, %[b1].16b, %[a1a].4b[0]\n"
"ins %[a1].d[1], x20\n"
".word 0x4fa6e075 // sdot v21.4s, %[b1].16b, %[a1a].4b[1]\n"
"ldr x20, [%[b_ptr], #104]\n"
".word 0x4f86e876 // sdot v22.4s, %[b1].16b, %[a1a].4b[2]\n"
".word 0x4fa6e877 // sdot v23.4s, %[b1].16b, %[a1a].4b[3]\n"
"ldr %d[b1], [%[b_ptr], #112]\n"
".word 0x4f85e098 // sdot v24.4s, %[b2].16b, %[a0a].4b[0]\n"
"ins %[b0].d[1], x20\n"
".word 0x4fa5e099 // sdot v25.4s, %[b2].16b, %[a0a].4b[1]\n"
"ldr x20, [%[b_ptr], #120]\n"
".word 0x4f85e89a // sdot v26.4s, %[b2].16b, %[a0a].4b[2]\n"
".word 0x4fa5e89b // sdot v27.4s, %[b2].16b, %[a0a].4b[3]\n"
"add %[a_ptr], %[a_ptr], #64\n"
".word 0x4f86e09c // sdot v28.4s, %[b2].16b, %[a1a].4b[0]\n"
ASM_PREFETCH("[%[b_ptr], #640]")
".word 0x4fa6e09d // sdot v29.4s, %[b2].16b, %[a1a].4b[1]\n"
"add %[b_ptr], %[b_ptr], #96\n"
".word 0x4f86e89e // sdot v30.4s, %[b2].16b, %[a1a].4b[2]\n"
"ins %[b1].d[1], x20\n"
".word 0x4fa6e89f // sdot v31.4s, %[b2].16b, %[a1a].4b[3]\n"
"ldr %d[b2], [%[b_ptr], #32]\n"
".word 0x4f80e048 // sdot v8.4s , %[b0].16b, %[a0].4b[0]\n"
"b.ne 1b\n"
// Branch here if K=1 or 2. Do the right thing for odd/even at the end.
"4:\n"
// Start final iteration - branch off to "odd" code before we load a0a.
".word 0x4fa0e049 // sdot v9.4s , %[b0].16b, %[a0].4b[1]\n"
"ldr x20, [%[b_ptr], #40]\n"
".word 0x4f80e84a // sdot v10.4s, %[b0].16b, %[a0].4b[2]\n"
"cbnz %w[oddk], 2f\n"
// Even K continuation
".word 0x4fa0e84b // sdot v11.4s, %[b0].16b, %[a0].4b[3]\n"
"ldr %d[a0a], [%[a_ptr], #32]\n"
".word 0x4f81e04c // sdot v12.4s, %[b0].16b, %[a1].4b[0]\n"
"ins %[b2].d[1], x20\n"
".word 0x4fa1e04d // sdot v13.4s, %[b0].16b, %[a1].4b[1]\n"
"ldr x20, [%[a_ptr], #40]\n"
".word 0x4f81e84e // sdot v14.4s, %[b0].16b, %[a1].4b[2]\n"
ASM_PREFETCHW("[%[c_ptr]]")
".word 0x4fa1e84f // sdot v15.4s, %[b0].16b, %[a1].4b[3]\n"
"ldr %d[a1a], [%[a_ptr], #48]\n"
".word 0x4f80e070 // sdot v16.4s, %[b1].16b, %[a0].4b[0]\n"
"ins %[a0a].d[1], x20\n"
".word 0x4fa0e071 // sdot v17.4s, %[b1].16b, %[a0].4b[1]\n"
"ldr x20, [%[a_ptr], #56]\n"
".word 0x4f80e872 // sdot v18.4s, %[b1].16b, %[a0].4b[2]\n"
".word 0x4fa0e873 // sdot v19.4s, %[b1].16b, %[a0].4b[3]\n"
"ldr %d[b0], [%[b_ptr], #48]\n"
".word 0x4f81e074 // sdot v20.4s, %[b1].16b, %[a1].4b[0]\n"
"ins %[a1a].d[1], x20\n"
".word 0x4fa1e075 // sdot v21.4s, %[b1].16b, %[a1].4b[1]\n"
"ldr x20, [%[b_ptr], #56]\n"
".word 0x4f81e876 // sdot v22.4s, %[b1].16b, %[a1].4b[2]\n"
ASM_PREFETCHW("[%[c_ptr], #64]")
".word 0x4fa1e877 // sdot v23.4s, %[b1].16b, %[a1].4b[3]\n"
".word 0x4f80e098 // sdot v24.4s, %[b2].16b, %[a0].4b[0]\n"
".word 0x4fa0e099 // sdot v25.4s, %[b2].16b, %[a0].4b[1]\n"
ASM_PREFETCHW("[%[c_ptr], #128]")
".word 0x4f80e89a // sdot v26.4s, %[b2].16b, %[a0].4b[2]\n"
".word 0x4fa0e89b // sdot v27.4s, %[b2].16b, %[a0].4b[3]\n"
"ldr %d[b1], [%[b_ptr], #64]\n"
".word 0x4f81e09c // sdot v28.4s, %[b2].16b, %[a1].4b[0]\n"
"ins %[b0].d[1], x20\n"
".word 0x4fa1e09d // sdot v29.4s, %[b2].16b, %[a1].4b[1]\n"
"ldr x20, [%[b_ptr], #72]\n"
".word 0x4f81e89e // sdot v30.4s, %[b2].16b, %[a1].4b[2]\n"
ASM_PREFETCHW("[%[c_ptr], #192]")
".word 0x4fa1e89f // sdot v31.4s, %[b2].16b, %[a1].4b[3]\n"
"ldr %d[b2], [%[b_ptr], #80]\n"
".word 0x4f85e048 // sdot v8.4s , %[b0].16b, %[a0a].4b[0]\n"
"ins %[b1].d[1], x20\n"
".word 0x4fa5e049 // sdot v9.4s , %[b0].16b, %[a0a].4b[1]\n"
"ldr x20, [%[b_ptr], #88]\n"
".word 0x4f85e84a // sdot v10.4s, %[b0].16b, %[a0a].4b[2]\n"
"ins %[b2].d[1], x20\n"
".word 0x4fa5e84b // sdot v11.4s, %[b0].16b, %[a0a].4b[3]\n"
ASM_PREFETCHW("[%[c_ptr], #256]")
".word 0x4f86e04c // sdot v12.4s, %[b0].16b, %[a1a].4b[0]\n"
".word 0x4fa6e04d // sdot v13.4s, %[b0].16b, %[a1a].4b[1]\n"
".word 0x4f86e84e // sdot v14.4s, %[b0].16b, %[a1a].4b[2]\n"
ASM_PREFETCHW("[%[c_ptr], #320]")
".word 0x4fa6e84f // sdot v15.4s, %[b0].16b, %[a1a].4b[3]\n"
".word 0x4f85e070 // sdot v16.4s, %[b1].16b, %[a0a].4b[0]\n"
ASM_PREFETCHWL2("[%[c_ptr], #384]")
".word 0x4fa5e071 // sdot v17.4s, %[b1].16b, %[a0a].4b[1]\n"
".word 0x4f85e872 // sdot v18.4s, %[b1].16b, %[a0a].4b[2]\n"
ASM_PREFETCHWL2("[%[c_ptr], #448]")
".word 0x4fa5e873 // sdot v19.4s, %[b1].16b, %[a0a].4b[3]\n"
".word 0x4f86e074 // sdot v20.4s, %[b1].16b, %[a1a].4b[0]\n"
".word 0x4fa6e075 // sdot v21.4s, %[b1].16b, %[a1a].4b[1]\n"
ASM_PREFETCHWL2("[%[c_ptr], #512]")
".word 0x4f86e876 // sdot v22.4s, %[b1].16b, %[a1a].4b[2]\n"
".word 0x4fa6e877 // sdot v23.4s, %[b1].16b, %[a1a].4b[3]\n"
ASM_PREFETCHWL2("[%[c_ptr], #576]")
".word 0x4f85e098 // sdot v24.4s, %[b2].16b, %[a0a].4b[0]\n"
".word 0x4fa5e099 // sdot v25.4s, %[b2].16b, %[a0a].4b[1]\n"
".word 0x4f85e89a // sdot v26.4s, %[b2].16b, %[a0a].4b[2]\n"
ASM_PREFETCHWL2("[%[c_ptr], #640]")
".word 0x4fa5e89b // sdot v27.4s, %[b2].16b, %[a0a].4b[3]\n"
".word 0x4f86e09c // sdot v28.4s, %[b2].16b, %[a1a].4b[0]\n"
ASM_PREFETCHWL2("[%[c_ptr], #704]")
".word 0x4fa6e09d // sdot v29.4s, %[b2].16b, %[a1a].4b[1]\n"
"add %[a_ptr], %[a_ptr], #64\n"
".word 0x4f86e89e // sdot v30.4s, %[b2].16b, %[a1a].4b[2]\n"
"add %[b_ptr], %[b_ptr], #96\n"
".word 0x4fa6e89f // sdot v31.4s, %[b2].16b, %[a1a].4b[3]\n"
"b 3f\n"
// Odd K continuation
"2:\n"
".word 0x4fa0e84b // sdot v11.4s, %[b0].16b, %[a0].4b[3]\n"
ASM_PREFETCHW("[%[c_ptr]]")
".word 0x4f81e04c // sdot v12.4s, %[b0].16b, %[a1].4b[0]\n"
"ins %[b2].d[1], x20\n"
".word 0x4fa1e04d // sdot v13.4s, %[b0].16b, %[a1].4b[1]\n"
ASM_PREFETCHW("[%[c_ptr], #64]")
".word 0x4f81e84e // sdot v14.4s, %[b0].16b, %[a1].4b[2]\n"
"add %[a_ptr], %[a_ptr], #32\n"
".word 0x4fa1e84f // sdot v15.4s, %[b0].16b, %[a1].4b[3]\n"
ASM_PREFETCHW("[%[c_ptr], #128]")
".word 0x4f80e070 // sdot v16.4s, %[b1].16b, %[a0].4b[0]\n"
"add %[b_ptr], %[b_ptr], #48\n"
".word 0x4fa0e071 // sdot v17.4s, %[b1].16b, %[a0].4b[1]\n"
ASM_PREFETCHW("[%[c_ptr], #192]")
".word 0x4f80e872 // sdot v18.4s, %[b1].16b, %[a0].4b[2]\n"
".word 0x4fa0e873 // sdot v19.4s, %[b1].16b, %[a0].4b[3]\n"
ASM_PREFETCHW("[%[c_ptr], #256]")
".word 0x4f81e074 // sdot v20.4s, %[b1].16b, %[a1].4b[0]\n"
".word 0x4fa1e075 // sdot v21.4s, %[b1].16b, %[a1].4b[1]\n"
ASM_PREFETCHW("[%[c_ptr], #320]")
".word 0x4f81e876 // sdot v22.4s, %[b1].16b, %[a1].4b[2]\n"
".word 0x4fa1e877 // sdot v23.4s, %[b1].16b, %[a1].4b[3]\n"
ASM_PREFETCHWL2("[%[c_ptr], #384]")
".word 0x4f80e098 // sdot v24.4s, %[b2].16b, %[a0].4b[0]\n"
".word 0x4fa0e099 // sdot v25.4s, %[b2].16b, %[a0].4b[1]\n"
ASM_PREFETCHWL2("[%[c_ptr], #448]")
".word 0x4f80e89a // sdot v26.4s, %[b2].16b, %[a0].4b[2]\n"
".word 0x4fa0e89b // sdot v27.4s, %[b2].16b, %[a0].4b[3]\n"
ASM_PREFETCHWL2("[%[c_ptr], #512]")
".word 0x4f81e09c // sdot v28.4s, %[b2].16b, %[a1].4b[0]\n"
ASM_PREFETCHWL2("[%[c_ptr], #576]")
".word 0x4fa1e09d // sdot v29.4s, %[b2].16b, %[a1].4b[1]\n"
ASM_PREFETCHWL2("[%[c_ptr], #640]")
".word 0x4f81e89e // sdot v30.4s, %[b2].16b, %[a1].4b[2]\n"
ASM_PREFETCHWL2("[%[c_ptr], #704]")
".word 0x4fa1e89f // sdot v31.4s, %[b2].16b, %[a1].4b[3]\n"
// Common tail
"3:\n"
"str q8, [%[c_ptr]]\n"
"str q16, [%[c_ptr], #16]\n"
"str q24, [%[c_ptr], #32]\n"
"str q9, [%[c_ptr], #48]\n"
"str q17, [%[c_ptr], #64]\n"
"str q25, [%[c_ptr], #80]\n"
"str q10, [%[c_ptr], #96]\n"
"str q18, [%[c_ptr], #112]\n"
"str q26, [%[c_ptr], #128]\n"
"str q11, [%[c_ptr], #144]\n"
"str q19, [%[c_ptr], #160]\n"
"str q27, [%[c_ptr], #176]\n"
"str q12, [%[c_ptr], #192]\n"
"str q20, [%[c_ptr], #208]\n"
"str q28, [%[c_ptr], #224]\n"
"str q13, [%[c_ptr], #240]\n"
"str q21, [%[c_ptr], #256]\n"
"str q29, [%[c_ptr], #272]\n"
"str q14, [%[c_ptr], #288]\n"
"str q22, [%[c_ptr], #304]\n"
"str q30, [%[c_ptr], #320]\n"
"str q15, [%[c_ptr], #336]\n"
"str q23, [%[c_ptr], #352]\n"
"str q31, [%[c_ptr], #368]\n"
"add %[c_ptr], %[c_ptr], #384\n"
:
[a_ptr] "+r" (a_ptr), [b_ptr] "+r" (b_ptr), [c_ptr] "+r" (c_ptr),
[a0] "+w" (a0), [a1] "+w" (a1), [a0a] "+w" (a0a), [a1a] "+w" (a1a),
[b0] "+w" (b0), [b1] "+w" (b1), [b2] "+w" (b2), [k] "+r" (k)
: [oddk] "r" (oddk)
: "x20", "x21", "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17", "v18",
"v19", "v20", "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", "cc", "memory"
);
}
}
}
} // namespace arm_gemm
#endif
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