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

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#include "../test_static.isph"
// rule: skip on cpu=tgllp
// rule: skip on cpu=dg2
bool ok(double x, double ref) { return (abs(x - ref) < 1d-5) || abs((x-ref)/ref) < 1d-4; }
task void f_du(uniform float RET[], uniform double aFOO[], uniform double b) {
varying double arg = aFOO[programIndex] + b;
varying double ref = cos((float)arg);
varying double res = cos(arg);
// native single precision cos on Xe is pretty imprecise
RET[programIndex] = ok(res, ref) ? 0. : 1.;
}
task void result(uniform float RET[]) {
RET[programIndex] = 0.0;
}