--- /dev/null
+#include <cmath>
+#include <cstring>
+#include "utest_helper.hpp"
+
+static int as_int(float f) {
+ void *p = &f;
+ return *(int *)p;
+}
+
+void builtin_nextafter(void)
+{
+ const int n = 16;
+ float src1[n], src2[n];
+
+ // Setup kernel and buffers
+ OCL_CREATE_KERNEL("builtin_nextafter");
+ OCL_CREATE_BUFFER(buf[0], 0, n * sizeof(float), NULL);
+ OCL_CREATE_BUFFER(buf[1], 0, n * sizeof(float), NULL);
+ OCL_CREATE_BUFFER(buf[2], 0, n * sizeof(float), NULL);
+ OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+ OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
+ OCL_SET_ARG(2, sizeof(cl_mem), &buf[2]);
+ globals[0] = n;
+ locals[0] = 16;
+
+ src1[0] = nanf(""), src2[0] = 1.1f;
+ src1[1] = 2.2f, src2[1] = nanf("");
+ src1[2] = nanf(""), src2[2] = nanf("");
+ src1[3] = 123.4f, src2[3] = 123.4f;
+ src1[4] = 0.f, src2[4] = 1.f;
+ src1[5] = -0.f, src2[5] = -1.f;
+ for (int i = 6; i < n; ++i) {
+ src1[i] = (rand() & 255) * 0.1f - 12.8f;
+ src2[i] = (rand() & 255) * 0.1f - 12.8f;
+ }
+
+ OCL_MAP_BUFFER(0);
+ OCL_MAP_BUFFER(1);
+ memcpy(buf_data[0], src1, n * sizeof(float));
+ memcpy(buf_data[1], src2, n * sizeof(float));
+ OCL_UNMAP_BUFFER(0);
+ OCL_UNMAP_BUFFER(1);
+
+ OCL_NDRANGE(1);
+
+ OCL_MAP_BUFFER(2);
+ float *dest = (float *)buf_data[2];
+ if (0)
+ for (int i = 0; i < n; ++i)
+ printf("%d %x %x %x %x\n", i, as_int(src1[i]), as_int(src2[i]),
+ as_int(dest[i]), as_int(nextafterf(src1[i], src2[i])));
+ OCL_ASSERT(isnanf(dest[0]));
+ OCL_ASSERT(isnanf(dest[1]));
+ OCL_ASSERT(isnanf(dest[2]));
+ for (int i = 3; i < n; ++i)
+ OCL_ASSERT(dest[i] == nextafterf(src1[i], src2[i]));
+ OCL_UNMAP_BUFFER(2);
+}
+
+MAKE_UTEST_FROM_FUNCTION(builtin_nextafter);