/*************************************************************************** Copyright (c) 2014, 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" #include "../simd/intrin.h" #if defined(DSDOT) double CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y) #else FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y) #endif { BLASLONG i=0; BLASLONG ix=0,iy=0; #if defined(DSDOT) double dot = 0.0 ; #else FLOAT dot = 0.0 ; #endif if ( n < 1 ) return(dot); if ( (inc_x == 1) && (inc_y == 1) ) { #if defined(DOUBLE) && V_SIMD && V_SIMD_F64 && !defined(DSDOT) const int vstep = v_nlanes_f64; const int unrollx4 = n & (-vstep * 4); const int unrollx = n & -vstep; v_f64 vsum0 = v_zero_f64(); v_f64 vsum1 = v_zero_f64(); v_f64 vsum2 = v_zero_f64(); v_f64 vsum3 = v_zero_f64(); while(i < unrollx4) { vsum0 = v_muladd_f64( v_loadu_f64(x + i), v_loadu_f64(y + i), vsum0 ); vsum1 = v_muladd_f64( v_loadu_f64(x + i + vstep), v_loadu_f64(y + i + vstep), vsum1 ); vsum2 = v_muladd_f64( v_loadu_f64(x + i + vstep*2), v_loadu_f64(y + i + vstep*2), vsum2 ); vsum3 = v_muladd_f64( v_loadu_f64(x + i + vstep*3), v_loadu_f64(y + i + vstep*3), vsum3 ); i += vstep*4; } vsum0 = v_add_f64( v_add_f64(vsum0, vsum1), v_add_f64(vsum2 , vsum3) ); while(i < unrollx) { vsum0 = v_muladd_f64( v_loadu_f64(x + i), v_loadu_f64(y + i), vsum0 ); i += vstep; } dot = v_sum_f64(vsum0); #elif V_SIMD && !defined(DSDOT) const int vstep = v_nlanes_f32; const int unrollx4 = n & (-vstep * 4); const int unrollx = n & -vstep; v_f32 vsum0 = v_zero_f32(); v_f32 vsum1 = v_zero_f32(); v_f32 vsum2 = v_zero_f32(); v_f32 vsum3 = v_zero_f32(); while(i < unrollx4) { vsum0 = v_muladd_f32( v_loadu_f32(x + i), v_loadu_f32(y + i), vsum0 ); vsum1 = v_muladd_f32( v_loadu_f32(x + i + vstep), v_loadu_f32(y + i + vstep), vsum1 ); vsum2 = v_muladd_f32( v_loadu_f32(x + i + vstep*2), v_loadu_f32(y + i + vstep*2), vsum2 ); vsum3 = v_muladd_f32( v_loadu_f32(x + i + vstep*3), v_loadu_f32(y + i + vstep*3), vsum3 ); i += vstep*4; } vsum0 = v_add_f32( v_add_f32(vsum0, vsum1), v_add_f32(vsum2 , vsum3) ); while(i < unrollx) { vsum0 = v_muladd_f32( v_loadu_f32(x + i), v_loadu_f32(y + i), vsum0 ); i += vstep; } dot = v_sum_f32(vsum0); #elif defined(DSDOT) && defined(ARCH_WASM) && V_SIMD && V_SIMD_F64 const int vstep = v_nlanes_f32; const int unrollx4 = n & (-vstep * 4); const int unrollx = n & -vstep; v_f64 vsum0_lo = v_zero_f64(); v_f64 vsum0_hi = v_zero_f64(); v_f64 vsum1_lo = v_zero_f64(); v_f64 vsum1_hi = v_zero_f64(); v_f64 vsum2_lo = v_zero_f64(); v_f64 vsum2_hi = v_zero_f64(); v_f64 vsum3_lo = v_zero_f64(); v_f64 vsum3_hi = v_zero_f64(); while(i < unrollx4) { v_f32 vx0 = v_loadu_f32(x + i); v_f32 vy0 = v_loadu_f32(y + i); v_f32 vx1 = v_loadu_f32(x + i + vstep); v_f32 vy1 = v_loadu_f32(y + i + vstep); v_f32 vx2 = v_loadu_f32(x + i + vstep*2); v_f32 vy2 = v_loadu_f32(y + i + vstep*2); v_f32 vx3 = v_loadu_f32(x + i + vstep*3); v_f32 vy3 = v_loadu_f32(y + i + vstep*3); vsum0_lo = v_muladd_f64(v_cvt_f32_f64_lo(vx0), v_cvt_f32_f64_lo(vy0), vsum0_lo); vsum0_hi = v_muladd_f64(v_cvt_f32_f64_hi(vx0), v_cvt_f32_f64_hi(vy0), vsum0_hi); vsum1_lo = v_muladd_f64(v_cvt_f32_f64_lo(vx1), v_cvt_f32_f64_lo(vy1), vsum1_lo); vsum1_hi = v_muladd_f64(v_cvt_f32_f64_hi(vx1), v_cvt_f32_f64_hi(vy1), vsum1_hi); vsum2_lo = v_muladd_f64(v_cvt_f32_f64_lo(vx2), v_cvt_f32_f64_lo(vy2), vsum2_lo); vsum2_hi = v_muladd_f64(v_cvt_f32_f64_hi(vx2), v_cvt_f32_f64_hi(vy2), vsum2_hi); vsum3_lo = v_muladd_f64(v_cvt_f32_f64_lo(vx3), v_cvt_f32_f64_lo(vy3), vsum3_lo); vsum3_hi = v_muladd_f64(v_cvt_f32_f64_hi(vx3), v_cvt_f32_f64_hi(vy3), vsum3_hi); i += vstep*4; } vsum0_lo = v_add_f64(v_add_f64(vsum0_lo, vsum1_lo), v_add_f64(vsum2_lo, vsum3_lo)); vsum0_hi = v_add_f64(v_add_f64(vsum0_hi, vsum1_hi), v_add_f64(vsum2_hi, vsum3_hi)); while(i < unrollx) { v_f32 vx = v_loadu_f32(x + i); v_f32 vy = v_loadu_f32(y + i); vsum0_lo = v_muladd_f64(v_cvt_f32_f64_lo(vx), v_cvt_f32_f64_lo(vy), vsum0_lo); vsum0_hi = v_muladd_f64(v_cvt_f32_f64_hi(vx), v_cvt_f32_f64_hi(vy), vsum0_hi); i += vstep; } dot = v_sum_f64(vsum0_lo) + v_sum_f64(vsum0_hi); #elif defined(DSDOT) int n1 = n & -4; for (; i < n1; i += 4) { dot += (double) y[i] * (double) x[i] + (double) y[i+1] * (double) x[i+1] + (double) y[i+2] * (double) x[i+2] + (double) y[i+3] * (double) x[i+3] ; } #else int n1 = n & -4; for (; i < n1; i += 4) { dot += y[i] * x[i] + y[i+1] * x[i+1] + y[i+2] * x[i+2] + y[i+3] * x[i+3] ; } #endif while(i < n) { #if defined(DSDOT) dot += (double) y[i] * (double) x[i] ; #else dot += y[i] * x[i] ; #endif i++ ; } return(dot); } while(i < n) { #if defined(DSDOT) dot += (double) y[iy] * (double) x[ix] ; #else dot += y[iy] * x[ix] ; #endif ix += inc_x ; iy += inc_y ; i++ ; } return(dot); }