2c640f7e52
The standard library now provides a variety of rdrand() functions that call out to RDRAND, when available. Issue #263.
26 lines
618 B
Plaintext
26 lines
618 B
Plaintext
|
|
export uniform int width() { return programCount; }
|
|
|
|
export void f_f(uniform float RET[], uniform float aFOO[]) {
|
|
#if !defined(ISPC_TARGET_AVX11) && !defined(ISPC_TARGET_AVX2)
|
|
RET[programIndex] = 1;
|
|
#else
|
|
|
|
int lessHalf = 0, moreHalf = 0;
|
|
for (uniform int i = 0; i < 1024*1024; ++i) {
|
|
float r = -1;
|
|
while (!rdrand(&r))
|
|
;
|
|
if (r < 0.5) ++lessHalf;
|
|
else ++moreHalf;
|
|
}
|
|
|
|
float r = (double)lessHalf / (double)(lessHalf + moreHalf);
|
|
RET[programIndex] = (r >= .49 && r < .51);
|
|
#endif
|
|
}
|
|
|
|
export void result(uniform float RET[]) {
|
|
RET[programIndex] = 1;
|
|
}
|