Files
ispc/tests/rand-distrib-1.ispc
Matt Pharr f7f281a256 Choose type for integer literals to match the target mask size (if possible).
On a target with a 16-bit mask (for example), we would choose the type
of an integer literal "1024" to be an int16.  Previously, we used an int32,
which is a worse fit and leads to less efficient code than an int16
on a 16-bit mask target.  (However, we'd still give an integer literal
1000000 the type int32, even in a 16-bit target.)

Updated the tests to still pass with 8 and 16-bit targets, given this
change.
2013-07-23 17:24:50 -07:00

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export uniform int width() { return programCount; }
export void f_fu(uniform float RET[], uniform float aFOO[], uniform float b) {
RNGState state;
seed_rng(&state, programIndex);
int count[32];
for (uniform int i = 0; i < 32; ++i)
count[i] = (b == 5.) ? 0 : 1;
uniform int iters = 10000;
for (uniform int i = 0; i < iters; ++i) {
unsigned int val = random(&state);
for (uniform int j = 0; j < 32; ++j) {
if (val & (1ul<<j))
++count[j];
}
}
bool ok = true;
for (uniform int i = 0; i < 32; ++i)
ok |= (count[i] > 0.495 * iters && count[i] < 0.505 * iters);
RET[programIndex] = ok ? 1 : 0;
}
export void result(uniform float RET[]) {
RET[programIndex] = 1;
}