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ispc/tests/count-leading-trailing-zeros-4.ispc
Matt Pharr 7a2561c429 Add count_{leading,trailing}_zeros() functions to stdlib.
(Documentation is still yet to be written.)
2011-11-30 10:12:16 -08:00

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export uniform int width() { return programCount; }
export void f_f(uniform float RET[], uniform float aFOO[]) {
int32 i = (1 << programIndex);
RET[programIndex] = count_leading_zeros(i);
}
export void result(uniform float RET[]) {
RET[programIndex] = 31-programIndex;
}