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ispc/tests/rand-distrib.ispc

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export uniform int width() { return programCount; }
export void f_f(uniform float RET[], uniform float aFOO[]) {
RNGState state;
seed_rng(state, 1);
float sum = 0;
uniform int iters = 40000;
for (unsigned int i = 0; i < iters; ++i)
sum += frandom(state);
float avg = sum / iters;
RET[programIndex] = (avg > 0.495 && avg < 0.505) ? 1 : 0;
}
export void result(uniform float RET[]) {
RET[programIndex] = 1;
}