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UnrealEngine/Engine/Source/ThirdParty/Intel/ISPC/ispc-1.24.0/tests/popcnt-2.ispc
2025-05-18 13:04:45 +08:00

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#include "../test_static.isph"
static int int4(uniform int a, uniform int b, uniform int c,
uniform int d) {
int ret = 0;
for (uniform int i = 0; i < programCount; i += 4) {
ret = insert(ret, i + 0, a);
ret = insert(ret, i + 1, b);
ret = insert(ret, i + 2, c);
ret = insert(ret, i + 3, d);
}
return ret;
}
task void f_f(uniform float RET[], uniform float aFOO[]) {
float a = aFOO[programIndex];
RET[programIndex] = popcnt(int4(0xf0f0f0f0, 0xff, 0x10, 0));
}
task void result(uniform float RET[]) {
for (uniform int i = 0; i < programCount; i += 4) {
RET[i] = 16;
RET[i+1] = 8;
RET[i+2] = 1;
RET[i+3] = 0;
}
}