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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_sgemm_asimd_12x8_a53(const float *Apanel, const float *Bpanel, float *Cpanel, int ablocks, int bblocks, int K)
{
const float *a_ptr = Apanel;
float *c_ptr = Cpanel;
for(int yb = 0; yb < ablocks; yb++)
{
const float *a_ptr0 = a_ptr;
const float *b_ptr = Bpanel;
for(int xb = 0; xb < bblocks; xb++)
{
a_ptr = a_ptr0;
// Fix up for odd lengths - set a flag if K is odd, but make
// sure we round up the iteration count.
int oddk = (K & 1);
int k = ((K + 1) / 2) - 1;
register float32x4_t a0 asm("v0");
register float32x4_t a1 asm("v1");
register float32x4_t b0 asm("v2");
register float32x4_t b1 asm("v3");
register float32x4_t b2 asm("v4");
register float32x4_t a0a asm("v5");
register float32x4_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"
ASM_PREFETCH("[%[a_ptr], #192]") "movi v19.4s, #0x0\n" ASM_PREFETCH("[%[b_ptr], #320]") "movi v20.4s, #0x0\n" ASM_PREFETCH("[%[a_ptr], #256]") "movi v21.4s, #0x0\n"
ASM_PREFETCH("[%[b_ptr], #384]")
"movi v22.4s, #0x0\n"
"movi v23.4s, #0x0\n"
"movi v24.4s, #0x0\n"
"movi v25.4s, #0x0\n"
"movi v26.4s, #0x0\n"
"movi v27.4s, #0x0\n"
"movi v28.4s, #0x0\n"
"movi v29.4s, #0x0\n"
"movi v30.4s, #0x0\n"
"movi v31.4s, #0x0\n"
// Skip loop if we are doing zero iterations of it.
"cbz %w[k], 4f\n"
"1:\n"
// Unroll 0
"ldr %d[b2], [%[b_ptr], #32]\n"
"nop\n"
"fmla v8.4s , %[b0].4s, %[a0].s[0]\n"
"ldr x20, [%[b_ptr], #40]\n"
"fmla v9.4s , %[b0].4s, %[a0].s[1]\n"
"subs %w[k], %w[k], #1\n"
"fmla v10.4s, %[b0].4s, %[a0].s[2]\n"
"ldr %d[a0a], [%[a_ptr], #32]\n"
"ins %[b2].d[1], x20\n"
"fmla v11.4s, %[b0].4s, %[a0].s[3]\n"
"ldr x20, [%[a_ptr], #40]\n"
"fmla v12.4s, %[b0].4s, %[a1].s[0]\n"
"fmla v13.4s, %[b0].4s, %[a1].s[1]\n"
"ldr %d[a1a], [%[a_ptr], #48]\n"
"ins %[a0a].d[1], x20\n"
"fmla v14.4s, %[b0].4s, %[a1].s[2]\n"
"ldr x20, [%[a_ptr], #56]\n"
"fmla v15.4s, %[b0].4s, %[a1].s[3]\n"
"fmla v16.4s, %[b1].4s, %[a0].s[0]\n"
"ldr %d[b0], [%[b_ptr], #48]\n"
"ins %[a1a].d[1], x20\n"
"fmla v17.4s, %[b1].4s, %[a0].s[1]\n"
"ldr x20, [%[b_ptr], #56]\n"
"fmla v18.4s, %[b1].4s, %[a0].s[2]\n"
"fmla v19.4s, %[b1].4s, %[a0].s[3]\n"
ASM_PREFETCH("[%[a_ptr], #320]")
"ins %[b0].d[1], x20\n"
"fmla v20.4s, %[b1].4s, %[a1].s[0]\n"
"fmla v21.4s, %[b1].4s, %[a1].s[1]\n"
"fmla v22.4s, %[b1].4s, %[a1].s[2]\n"
ASM_PREFETCH("[%[b_ptr], #448]")
"nop\n"
"fmla v23.4s, %[b1].4s, %[a1].s[3]\n"
"fmla v24.4s, %[b2].4s, %[a0].s[0]\n"
"fmla v25.4s, %[b2].4s, %[a0].s[1]\n"
"ldr %d[b1], [%[b_ptr], #64]\n"
"nop\n"
"fmla v26.4s, %[b2].4s, %[a0].s[2]\n"
"ldr x20, [%[b_ptr], #72]\n"
"fmla v27.4s, %[b2].4s, %[a0].s[3]\n"
"fmla v28.4s, %[b2].4s, %[a1].s[0]\n"
ASM_PREFETCH("[%[b_ptr], #512]")
"ins %[b1].d[1], x20\n"
"fmla v29.4s, %[b2].4s, %[a1].s[1]\n"
"fmla v30.4s, %[b2].4s, %[a1].s[2]\n"
"fmla v31.4s, %[b2].4s, %[a1].s[3]\n"
// Unroll 1
"ldr %d[b2], [%[b_ptr], #80]\n"
"nop\n"
"fmla v8.4s , %[b0].4s, %[a0a].s[0]\n"
"ldr x20, [%[b_ptr], #88]\n"
"fmla v9.4s , %[b0].4s, %[a0a].s[1]\n"
"fmla v10.4s, %[b0].4s, %[a0a].s[2]\n"
"ldr %d[a0], [%[a_ptr], #64]\n"
"ins %[b2].d[1], x20\n"
"fmla v11.4s, %[b0].4s, %[a0a].s[3]\n"
"ldr x20, [%[a_ptr], #72]\n"
"fmla v12.4s, %[b0].4s, %[a1a].s[0]\n"
"fmla v13.4s, %[b0].4s, %[a1a].s[1]\n"
"ldr %d[a1], [%[a_ptr], #80]\n"
"ins %[a0].d[1], x20\n"
"fmla v14.4s, %[b0].4s, %[a1a].s[2]\n"
"ldr x20, [%[a_ptr], #88]\n"
"fmla v15.4s, %[b0].4s, %[a1a].s[3]\n"
"fmla v16.4s, %[b1].4s, %[a0a].s[0]\n"
"ldr %d[b0], [%[b_ptr], #96]\n"
"ins %[a1].d[1], x20\n"
"fmla v17.4s, %[b1].4s, %[a0a].s[1]\n"
"ldr x20, [%[b_ptr], #104]\n"
"fmla v18.4s, %[b1].4s, %[a0a].s[2]\n"
"fmla v19.4s, %[b1].4s, %[a0a].s[3]\n"
"nop\n"
"ins %[b0].d[1], x20\n"
"fmla v20.4s, %[b1].4s, %[a1a].s[0]\n"
"fmla v21.4s, %[b1].4s, %[a1a].s[1]\n"
"fmla v22.4s, %[b1].4s, %[a1a].s[2]\n"
"nop\n"
"nop\n"
"fmla v23.4s, %[b1].4s, %[a1a].s[3]\n"
"fmla v24.4s, %[b2].4s, %[a0a].s[0]\n"
"fmla v25.4s, %[b2].4s, %[a0a].s[1]\n"
"ldr %d[b1], [%[b_ptr], #112]\n"
"nop\n"
"fmla v26.4s, %[b2].4s, %[a0a].s[2]\n"
"ldr x20, [%[b_ptr], #120]\n"
"fmla v27.4s, %[b2].4s, %[a0a].s[3]\n"
"add %[a_ptr], %[a_ptr], #64\n"
"fmla v28.4s, %[b2].4s, %[a1a].s[0]\n"
"add %[b_ptr], %[b_ptr], #96\n"
"nop\n"
"ins %[b1].d[1], x20\n"
"fmla v29.4s, %[b2].4s, %[a1a].s[1]\n"
"fmla v30.4s, %[b2].4s, %[a1a].s[2]\n"
"fmla v31.4s, %[b2].4s, %[a1a].s[3]\n"
"bne 1b\n"
// Branch here if K=1 or 2. Do the right thing for odd/even at the end.
"4:\n"
"cbnz %w[oddk], 2f\n"
// Detached final iteration. (even K)
"ldr %d[b2], [%[b_ptr], #32]\n"
"nop\n"
"fmla v8.4s , %[b0].4s, %[a0].s[0]\n"
"ldr x20, [%[b_ptr], #40]\n"
"fmla v9.4s , %[b0].4s, %[a0].s[1]\n"
"subs %w[k], %w[k], #1\n"
"fmla v10.4s, %[b0].4s, %[a0].s[2]\n"
"ldr %d[a0a], [%[a_ptr], #32]\n"
"ins %[b2].d[1], x20\n"
"fmla v11.4s, %[b0].4s, %[a0].s[3]\n"
"ldr x20, [%[a_ptr], #40]\n"
"fmla v12.4s, %[b0].4s, %[a1].s[0]\n"
"fmla v13.4s, %[b0].4s, %[a1].s[1]\n"
"ldr %d[a1a], [%[a_ptr], #48]\n"
"ins %[a0a].d[1], x20\n"
"fmla v14.4s, %[b0].4s, %[a1].s[2]\n"
"ldr x20, [%[a_ptr], #56]\n"
"fmla v15.4s, %[b0].4s, %[a1].s[3]\n"
"fmla v16.4s, %[b1].4s, %[a0].s[0]\n"
"ldr %d[b0], [%[b_ptr], #48]\n"
"ins %[a1a].d[1], x20\n"
"fmla v17.4s, %[b1].4s, %[a0].s[1]\n"
"ldr x20, [%[b_ptr], #56]\n"
"fmla v18.4s, %[b1].4s, %[a0].s[2]\n"
"fmla v19.4s, %[b1].4s, %[a0].s[3]\n"
"ins %[b0].d[1], x20\n"
"fmla v20.4s, %[b1].4s, %[a1].s[0]\n"
"fmla v21.4s, %[b1].4s, %[a1].s[1]\n"
"fmla v22.4s, %[b1].4s, %[a1].s[2]\n"
"nop\n"
"fmla v23.4s, %[b1].4s, %[a1].s[3]\n"
"fmla v24.4s, %[b2].4s, %[a0].s[0]\n"
"fmla v25.4s, %[b2].4s, %[a0].s[1]\n"
"ldr %d[b1], [%[b_ptr], #64]\n"
"nop\n"
"fmla v26.4s, %[b2].4s, %[a0].s[2]\n"
"ldr x20, [%[b_ptr], #72]\n"
"fmla v27.4s, %[b2].4s, %[a0].s[3]\n"
"fmla v28.4s, %[b2].4s, %[a1].s[0]\n"
"ins %[b1].d[1], x20\n"
"fmla v29.4s, %[b2].4s, %[a1].s[1]\n"
"fmla v30.4s, %[b2].4s, %[a1].s[2]\n"
"fmla v31.4s, %[b2].4s, %[a1].s[3]\n"
"ldr %d[b2], [%[b_ptr], #80]\n"
"nop\n"
"fmla v8.4s , %[b0].4s, %[a0a].s[0]\n"
"ldr x20, [%[b_ptr], #88]\n"
"fmla v9.4s , %[b0].4s, %[a0a].s[1]\n"
"fmla v10.4s, %[b0].4s, %[a0a].s[2]\n"
"ins %[b2].d[1], x20\n"
"fmla v11.4s, %[b0].4s, %[a0a].s[3]\n"
"fmla v12.4s, %[b0].4s, %[a1a].s[0]\n"
"fmla v13.4s, %[b0].4s, %[a1a].s[1]\n"
"fmla v14.4s, %[b0].4s, %[a1a].s[2]\n"
"fmla v15.4s, %[b0].4s, %[a1a].s[3]\n"
"fmla v16.4s, %[b1].4s, %[a0a].s[0]\n"
"fmla v17.4s, %[b1].4s, %[a0a].s[1]\n"
"fmla v18.4s, %[b1].4s, %[a0a].s[2]\n"
"fmla v19.4s, %[b1].4s, %[a0a].s[3]\n"
"fmla v20.4s, %[b1].4s, %[a1a].s[0]\n"
"fmla v21.4s, %[b1].4s, %[a1a].s[1]\n"
"fmla v22.4s, %[b1].4s, %[a1a].s[2]\n"
"fmla v23.4s, %[b1].4s, %[a1a].s[3]\n"
"fmla v24.4s, %[b2].4s, %[a0a].s[0]\n"
"fmla v25.4s, %[b2].4s, %[a0a].s[1]\n"
"fmla v26.4s, %[b2].4s, %[a0a].s[2]\n"
"fmla v27.4s, %[b2].4s, %[a0a].s[3]\n"
"fmla v28.4s, %[b2].4s, %[a1a].s[0]\n"
"fmla v29.4s, %[b2].4s, %[a1a].s[1]\n"
"add %[a_ptr], %[a_ptr], #64\n"
"fmla v30.4s, %[b2].4s, %[a1a].s[2]\n"
"add %[b_ptr], %[b_ptr], #96\n"
"fmla v31.4s, %[b2].4s, %[a1a].s[3]\n"
"b 3f\n"
// Detached final iteration. (odd K)
"2:\n"
"ldr %d[b2], [%[b_ptr], #32]\n"
"nop\n"
"fmla v8.4s , %[b0].4s, %[a0].s[0]\n"
"ldr x20, [%[b_ptr], #40]\n"
"fmla v9.4s , %[b0].4s, %[a0].s[1]\n"
"fmla v10.4s, %[b0].4s, %[a0].s[2]\n"
"ins %[b2].d[1], x20\n"
"fmla v11.4s, %[b0].4s, %[a0].s[3]\n"
"fmla v12.4s, %[b0].4s, %[a1].s[0]\n"
"fmla v13.4s, %[b0].4s, %[a1].s[1]\n"
"fmla v14.4s, %[b0].4s, %[a1].s[2]\n"
"fmla v15.4s, %[b0].4s, %[a1].s[3]\n"
"fmla v16.4s, %[b1].4s, %[a0].s[0]\n"
"fmla v17.4s, %[b1].4s, %[a0].s[1]\n"
"fmla v18.4s, %[b1].4s, %[a0].s[2]\n"
"fmla v19.4s, %[b1].4s, %[a0].s[3]\n"
"fmla v20.4s, %[b1].4s, %[a1].s[0]\n"
"fmla v21.4s, %[b1].4s, %[a1].s[1]\n"
"fmla v22.4s, %[b1].4s, %[a1].s[2]\n"
"fmla v23.4s, %[b1].4s, %[a1].s[3]\n"
"fmla v24.4s, %[b2].4s, %[a0].s[0]\n"
"fmla v25.4s, %[b2].4s, %[a0].s[1]\n"
"fmla v26.4s, %[b2].4s, %[a0].s[2]\n"
"fmla v27.4s, %[b2].4s, %[a0].s[3]\n"
"fmla v28.4s, %[b2].4s, %[a1].s[0]\n"
"fmla v29.4s, %[b2].4s, %[a1].s[1]\n"
"add %[a_ptr], %[a_ptr], #32\n"
"fmla v30.4s, %[b2].4s, %[a1].s[2]\n"
"add %[b_ptr], %[b_ptr], #48\n"
"fmla v31.4s, %[b2].4s, %[a1].s[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");
}
}
}
} // namespace arm_gemm
#endif
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