Files
ispc/tests/idiv.ispc
2013-08-20 09:22:09 -07:00

82 lines
2.2 KiB
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export uniform int width() { return programCount; }
export void f_f(uniform float RET[], uniform float aFOO[]) {
uniform int errorCount = 0;
for (unsigned int8 num = 0; num < 255; ++num) {
for (uniform unsigned int8 div = 2; div < 255; ++div) {
if (__fast_idiv(num, div) != num/div) {
++errorCount;
print("error %/% = %, got %\n", num, div, num/div, __fast_idiv(num,div));
if (errorCount > 32) break;
}
}
}
for (int8 num = 0; num < 127; ++num) {
for (uniform int8 div = 2; div < 127; ++div) {
if (__fast_idiv(num, div) != num/div) {
++errorCount;
print("error %/% = %, got %\n", num, div, num/div, __fast_idiv(num,div));
if (errorCount > 64) break;
}
}
}
for (int16 num = 0; num < 32767; ++num) {
for (uniform int16 div = 2; div < 256; ++div) {
if (__fast_idiv(num, div) != num/div) {
++errorCount;
print("error %/% = %, got %\n", num, div, num/div, __fast_idiv(num,div));
if (errorCount > 96) break;
}
}
}
for (unsigned int16 num = 0; num < 0xffff; ++num) {
for (uniform unsigned int16 div = 2; div < 256; ++div) {
if (__fast_idiv(num, div) != num/div) {
++errorCount;
print("error %/% = %, got %\n", num, div, num/div, __fast_idiv(num,div));
if (errorCount > 128) break;
}
}
}
// randomly sample int32s...
uniform RNGState state;
seed_rng(&state, 1234);
for (uniform int i = 0; i < 64k; ++i) {
unsigned int32 num = random(&state);
for (uniform unsigned int32 div = 2; div < 256; ++div) {
if (__fast_idiv(num, div) != num/div) {
++errorCount;
print("ui32 error %/% = %, got %\n", num, div, num/div, __fast_idiv(num,div));
if (errorCount > 160) break;
}
}
}
for (uniform int64 i = 0; i < 64k; ++i) {
int32 num = random(&state);
if (num < 0)
continue;
for (uniform int32 div = 2; div < 256; ++div) {
if (__fast_idiv(num, div) != num/div) {
++errorCount;
print("si32 error %/% = %, got %\n", num, div, num/div, __fast_idiv(num,div));
if (errorCount > 192) break;
}
}
}
RET[programIndex] = errorCount;
}
export void result(uniform float RET[]) {
RET[programIndex] = 0;
}