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- /***************************************************************************
- Copyright (c) 2017, 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.
- *****************************************************************************/
-
- #include "common.h"
-
- static void caxpy_kernel_16(BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha)
- {
- __asm__ volatile(
- #if !defined(CONJ)
- "vlrepf %%v0,0(%3) \n\t"
- "vlef %%v1,4(%3),0 \n\t"
- "vlef %%v1,4(%3),2 \n\t"
- "vflcsb %%v1,%%v1 \n\t"
- "vlef %%v1,4(%3),1 \n\t"
- "vlef %%v1,4(%3),3 \n\t"
- #else
- "vlef %%v0,0(%3),1 \n\t"
- "vlef %%v0,0(%3),3 \n\t"
- "vflcsb %%v0,%%v0 \n\t"
- "vlef %%v0,0(%3),0 \n\t"
- "vlef %%v0,0(%3),2 \n\t"
- "vlrepf %%v1,4(%3) \n\t"
- #endif
- "srlg %%r0,%0,4 \n\t"
- "xgr %%r1,%%r1 \n\t"
- "0: \n\t"
- "pfd 1, 1024(%%r1,%1) \n\t"
- "pfd 2, 1024(%%r1,%2) \n\t"
-
- "vl %%v16,0(%%r1,%1) \n\t"
- "vl %%v17,16(%%r1,%1) \n\t"
- "vl %%v18,32(%%r1,%1) \n\t"
- "vl %%v19,48(%%r1,%1) \n\t"
- "vl %%v20,0(%%r1,%2) \n\t"
- "vl %%v21,16(%%r1,%2) \n\t"
- "vl %%v22,32(%%r1,%2) \n\t"
- "vl %%v23,48(%%r1,%2) \n\t"
- "verllg %%v24,%%v16,32 \n\t"
- "verllg %%v25,%%v17,32 \n\t"
- "verllg %%v26,%%v18,32 \n\t"
- "verllg %%v27,%%v19,32 \n\t"
-
- "vfmasb %%v28,%%v16,%%v0,%%v20 \n\t"
- "vfmasb %%v29,%%v17,%%v0,%%v21 \n\t"
- "vfmasb %%v30,%%v18,%%v0,%%v22 \n\t"
- "vfmasb %%v31,%%v19,%%v0,%%v23 \n\t"
-
- "vfmasb %%v28,%%v24,%%v1,%%v28 \n\t"
- "vfmasb %%v29,%%v25,%%v1,%%v29 \n\t"
- "vfmasb %%v30,%%v26,%%v1,%%v30 \n\t"
- "vfmasb %%v31,%%v27,%%v1,%%v31 \n\t"
-
- "vst %%v28,0(%%r1,%2) \n\t"
- "vst %%v29,16(%%r1,%2) \n\t"
- "vst %%v30,32(%%r1,%2) \n\t"
- "vst %%v31,48(%%r1,%2) \n\t"
-
- "vl %%v16,64(%%r1,%1) \n\t"
- "vl %%v17,80(%%r1,%1) \n\t"
- "vl %%v18,96(%%r1,%1) \n\t"
- "vl %%v19,112(%%r1,%1) \n\t"
- "vl %%v20,64(%%r1,%2) \n\t"
- "vl %%v21,80(%%r1,%2) \n\t"
- "vl %%v22,96(%%r1,%2) \n\t"
- "vl %%v23,112(%%r1,%2) \n\t"
- "verllg %%v24,%%v16,32 \n\t"
- "verllg %%v25,%%v17,32 \n\t"
- "verllg %%v26,%%v18,32 \n\t"
- "verllg %%v27,%%v19,32 \n\t"
-
- "vfmasb %%v28,%%v16,%%v0,%%v20 \n\t"
- "vfmasb %%v29,%%v17,%%v0,%%v21 \n\t"
- "vfmasb %%v30,%%v18,%%v0,%%v22 \n\t"
- "vfmasb %%v31,%%v19,%%v0,%%v23 \n\t"
-
- "vfmasb %%v28,%%v24,%%v1,%%v28 \n\t"
- "vfmasb %%v29,%%v25,%%v1,%%v29 \n\t"
- "vfmasb %%v30,%%v26,%%v1,%%v30 \n\t"
- "vfmasb %%v31,%%v27,%%v1,%%v31 \n\t"
-
- "vst %%v28,64(%%r1,%2) \n\t"
- "vst %%v29,80(%%r1,%2) \n\t"
- "vst %%v30,96(%%r1,%2) \n\t"
- "vst %%v31,112(%%r1,%2) \n\t"
-
- "agfi %%r1,128 \n\t"
- "brctg %%r0,0b "
- :
- :"r"(n),"ZR"((const FLOAT (*)[n * 2])x),"ZR"((FLOAT (*)[n * 2])y),"ZQ"((const FLOAT (*)[2])alpha)
- :"memory","cc","r0","r1","v0","v1","v16","v17","v18","v19","v20","v21","v22","v23","v24","v25","v26","v27","v28","v29","v30","v31"
- );
- }
-
- int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r, FLOAT da_i, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2) {
- BLASLONG i = 0;
- BLASLONG ix = 0, iy = 0;
- FLOAT da[2] __attribute__ ((aligned(16)));
-
- if (n <= 0) return (0);
-
- if ((inc_x == 1) && (inc_y == 1)) {
-
- BLASLONG n1 = n & -16;
-
- if (n1) {
- da[0] = da_r;
- da[1] = da_i;
- caxpy_kernel_16(n1, x, y, da);
- ix = 2 * n1;
- }
- i = n1;
- while (i < n) {
- #if !defined(CONJ)
- y[ix] += (da_r * x[ix] - da_i * x[ix + 1]);
- y[ix + 1] += (da_r * x[ix + 1] + da_i * x[ix]);
- #else
- y[ix] += (da_r * x[ix] + da_i * x[ix + 1]);
- y[ix + 1] -= (da_r * x[ix + 1] - da_i * x[ix]);
- #endif
- i++;
- ix += 2;
-
- }
- return (0);
-
-
- }
-
- inc_x *= 2;
- inc_y *= 2;
-
- while (i < n) {
-
- #if !defined(CONJ)
- y[iy] += (da_r * x[ix] - da_i * x[ix + 1]);
- y[iy + 1] += (da_r * x[ix + 1] + da_i * x[ix]);
- #else
- y[iy] += (da_r * x[ix] + da_i * x[ix + 1]);
- y[iy + 1] -= (da_r * x[ix + 1] - da_i * x[ix]);
- #endif
- ix += inc_x;
- iy += inc_y;
- i++;
-
- }
- return (0);
-
- }
-
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