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#include <cmath>
#include "utest_helper.hpp"
#include <string.h>
void builtin_tgamma(void)
{
const int n = 1024;
float src[n];
// Setup kernel and buffers
OCL_CREATE_KERNEL("builtin_tgamma");
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;
const char* env_strict = getenv("OCL_STRICT_CONFORMANCE");
float ULPSIZE_FACTOR = 16.0;
if (env_strict == NULL || strcmp(env_strict, "0") == 0)
ULPSIZE_FACTOR = 10000.;
for (int j = 0; j < 1024; j ++) {
OCL_MAP_BUFFER(0);
for (int i = 0; i < n; ++i) {
src[i] = ((float*)buf_data[0])[i] = (j*n+i+1) * 0.001f;
}
OCL_UNMAP_BUFFER(0);
OCL_NDRANGE(1);
OCL_MAP_BUFFER(1);
float *dst = (float*)buf_data[1];
for (int i = 0; i < n; ++i) {
float cpu = tgammaf(src[i]);
if (isinf(cpu)) {
OCL_ASSERT(isinf(dst[i]));
} else if (fabsf(cpu - dst[i]) >= cl_FLT_ULP(cpu) * ULPSIZE_FACTOR) {
printf("%f %f %f\n", src[i], cpu, dst[i]);
OCL_ASSERT(0);
}
}
OCL_UNMAP_BUFFER(1);
}
}
MAKE_UTEST_FROM_FUNCTION(builtin_tgamma);
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