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#include <cmath>
#include "utest_helper.hpp"
void builtin_sign(void)
{
const int n = 32;
float src[n];
// Setup kernel and buffers
OCL_CREATE_KERNEL("builtin_sign");
OCL_CREATE_BUFFER(buf[0], 0, n * sizeof(float), NULL);
OCL_CREATE_BUFFER(buf[1], 0, n * sizeof(float), NULL);
OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
globals[0] = n;
locals[0] = 16;
OCL_MAP_BUFFER(0);
src[0] = ((float*)buf_data[0])[0] = nanf("");
src[1] = ((float*)buf_data[0])[1] = INFINITY;
src[2] = ((float*)buf_data[0])[2] = 0.f;
src[3] = ((float*)buf_data[0])[3] = -0.f;
for (int i = 4; i < n; ++i) {
src[i] = ((float*)buf_data[0])[i] = (rand() & 15) * 0.1 - 0.75;
}
OCL_UNMAP_BUFFER(0);
OCL_NDRANGE(1);
OCL_MAP_BUFFER(1);
float *dst = (float*)buf_data[1];
OCL_ASSERT(dst[0] == 0);
OCL_ASSERT(dst[1] == 1.f);
OCL_ASSERT(dst[2] == 0.f);
OCL_ASSERT(dst[3] == -0.f);
for (int i = 4; i < n; ++i) {
if (src[i] == 0.f)
OCL_ASSERT(dst[i] == 0.f);
else if (src[i] == -0.f)
OCL_ASSERT(dst[i] == -0.f);
else
OCL_ASSERT(dst[i] == (src[i] > 0 ? 1 : -1));
}
OCL_UNMAP_BUFFER(1);
}
MAKE_UTEST_FROM_FUNCTION(builtin_sign);
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