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UnrealEngine/Engine/Source/ThirdParty/Intel/ISPC/ispc-1.16.1/tests/local-atomics-13.ispc
Brandyn / Techy fcc1b09210 init
2026-04-04 15:40:51 -05:00

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uniform unsigned int32 s = 0;
export void f_f(uniform float RET[], uniform float aFOO[]) {
float a = aFOO[programIndex];
int32 b = 0;
if (programIndex < 28 && (programIndex & 1))
b = atomic_or_local(&s, (1ul << programIndex));
RET[programIndex] = popcnt(reduce_max(b));
}
export void result(uniform float RET[]) {
RET[programIndex] = (programCount == 1) ? 0 : ((min(28, programCount)/2) - 1);
}