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

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#include "../test_static.isph"
task void f_f(uniform float RET[], uniform float aFOO[]) {
RET[programIndex] = -1;
int32 a = ~(1ul << programIndex);
if ((programIndex < 32) && (programIndex & 1) == 0) {
RET[programIndex] = exclusive_scan_and(a);
}
}
task void result(uniform float RET[]) {
RET[programIndex] = -1;
if ((programIndex & 1) == 0 && programIndex > 0 && programIndex < 32) {
int val = 0xffffffff;
for (int i = 0; i < programIndex-1; i += 2)
val &= ~(1ul<<i);
RET[programIndex] = val;
}
}