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

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#include "../test_static.isph"
/*COfloat f(float);*/
float f(float x) {
if (x == 0) return x;
else return x + f(x-1);
}
task void f_fu(uniform float RET[], uniform float aFOO[], uniform float b) {
int a = aFOO[programIndex];
#pragma ignore warning(perf)
RET[programIndex] = f(a % 16);
}
task void result(uniform float RET[]) {
uniform float fib[16] = { 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 0 };
RET[programIndex] = fib[programIndex % 16];
}