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/*
Copyright (c) 2012-2023, Intel Corporation
SPDX-License-Identifier: BSD-3-Clause
*/
export void xyzSumAOS(uniform float array[], uniform int count,
uniform float zeros[], uniform float result[]) {
float xsum = 0, ysum = 0, zsum = 0;
foreach (i = 0 ... count/3) {
#pragma ignore warning(perf)
float x = array[3*i];
#pragma ignore warning(perf)
float y = array[3*i+1];
#pragma ignore warning(perf)
float z = array[3*i+2];
xsum += x;
ysum += y;
zsum += z;
}
result[0] = reduce_add(xsum);
result[1] = reduce_add(ysum);
result[2] = reduce_add(zsum);
}
export void xyzSumAOSStdlib(uniform float array[], uniform int count,
uniform float zeros[], uniform float result[]) {
float xsum = 0, ysum = 0, zsum = 0;
for (uniform int i = 0; i < 64*1024 /*count/3*/; i += programCount) {
float x, y, z;
aos_to_soa3(&array[3*i], &x, &y, &z);
xsum += x;
ysum += y;
zsum += z;
}
result[0] = reduce_add(xsum);
result[1] = reduce_add(ysum);
result[2] = reduce_add(zsum);
}
export void xyzSumAOSNoCoalesce(uniform float array[], uniform int count,
uniform float zerosArray[], uniform float result[]) {
int zeros = zerosArray[programIndex];
float xsum = 0, ysum = 0, zsum = 0;
foreach (i = 0 ... count/3) {
#pragma ignore warning(perf)
float x = array[3*i+zeros];
#pragma ignore warning(perf)
float y = array[3*i+1+zeros];
#pragma ignore warning(perf)
float z = array[3*i+2+zeros];
xsum += x;
ysum += y;
zsum += z;
}
result[0] = reduce_add(xsum);
result[1] = reduce_add(ysum);
result[2] = reduce_add(zsum);
}
export void xyzSumSOA(uniform float array[], uniform int count,
uniform float zeros[], uniform float result[]) {
float xsum = 0, ysum = 0, zsum = 0;
uniform float * uniform ap = array;
assert(programCount <= 8);
for (uniform int i = 0; i < count/3; i += 8, ap += 24) {
for (uniform int j = 0; j < 8; j += programCount) {
float x = ap[j + programIndex];
float y = ap[8 + j + programIndex];
float z = ap[16 + j + programIndex];
xsum += x;
ysum += y;
zsum += z;
}
}
result[0] = reduce_add(xsum);
result[1] = reduce_add(ysum);
result[2] = reduce_add(zsum);
}
#pragma ignore warning
export void xyzSumVarying(varying float array[], uniform int count,
uniform float zeros[], uniform float result[]) {
float xsum = 0, ysum = 0, zsum = 0;
varying float * uniform ap = array;
assert(programCount <= 8);
if (programCount == 4) {
for (uniform int i = 0; i < count/3; i += 8) {
float x0 = ap[0];
float y0 = ap[2];
float z0 = ap[4];
xsum += x0;
ysum += y0;
zsum += z0;
float x1 = ap[1];
float y1 = ap[3];
float z1 = ap[5];
xsum += x1;
ysum += y1;
zsum += z1;
ap += 6;
}
}
else {
for (uniform int i = 0; i < count/3; i += 8) {
// programCount == 8
float x = ap[0];
float y = ap[1];
float z = ap[2];
xsum += x;
ysum += y;
zsum += z;
ap += 3;
}
}
result[0] = reduce_add(xsum);
result[1] = reduce_add(ysum);
result[2] = reduce_add(zsum);
}
export void gathers(uniform float array[], uniform int count,
uniform float zeros[], uniform float result[]) {
float sum = 0;
int zero = zeros[programIndex];
foreach (i = 0 ... count) {
#pragma ignore warning(perf)
sum += array[i + zero];
}
result[0] = reduce_add(sum);
}
export void loads(uniform float array[], uniform int count,
uniform float zeros[], uniform float result[]) {
float sum = 0;
foreach (i = 0 ... count) {
#pragma ignore warning(perf)
sum += array[i];
}
result[0] = reduce_add(sum);
}
export void scatters(uniform float array[], uniform int count,
uniform float zeros[], uniform float result[]) {
int zero = zeros[programIndex];
foreach (i = 0 ... count) {
#pragma ignore warning(perf)
array[i + zero] = zero;
}
}
export void stores(uniform float array[], uniform int count,
uniform float zeros[], uniform float result[]) {
int zero = zeros[programIndex];
foreach (i = 0 ... count)
array[i] = zero;
}
export void normalizeAOSNoCoalesce(uniform float array[], uniform int count,
uniform float zeroArray[]) {
float zeros = zeroArray[programIndex];
foreach (i = 0 ... count/3) {
#pragma ignore warning(perf)
float x = array[3*i+zeros];
#pragma ignore warning(perf)
float y = array[3*i+1+zeros];
#pragma ignore warning(perf)
float z = array[3*i+2+zeros];
float l2 = x*x + y*y + z*z;
#pragma ignore warning(perf)
array[3*i] /= l2;
#pragma ignore warning(perf)
array[3*i+1] /= l2;
#pragma ignore warning(perf)
array[3*i+2] /= l2;
}
}
export void normalizeSOA(uniform float array[], uniform int count,
uniform float zeros[]) {
foreach (i = 0 ... count/3) {
#pragma ignore warning(perf)
float x = array[3*i];
#pragma ignore warning(perf)
float y = array[3*i+1];
#pragma ignore warning(perf)
float z = array[3*i+2];
float l2 = x*x + y*y + z*z;
#pragma ignore warning(perf)
array[3*i] /= l2;
#pragma ignore warning(perf)
array[3*i+1] /= l2;
#pragma ignore warning(perf)
array[3*i+2] /= l2;
}
}
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