1// RUN: %clang_builtins %s %librt -o %t && %run %t
2
3#define SINGLE_PRECISION
4#include <fenv.h>
5#include <math.h>
6#include <stdio.h>
7#include "fp_lib.h"
8
9int test__compiler_rt_fmaxf(fp_t x, fp_t y) {
10 fp_t crt_value = __compiler_rt_fmaxf(x, y);
11 fp_t libm_value = fmaxf(x, y);
12 // Consider +0 and -0 equal, and also disregard the sign/payload of two NaNs.
13 if (crt_value != libm_value &&
14 !(crt_isnan(crt_value) && crt_isnan(libm_value))) {
15 printf("error: in __compiler_rt_fmaxf(%a [%X], %a [%X]) = %a [%X] "
16 "!= %a [%X]\n",
17 x, toRep(x), y, toRep(y), crt_value, toRep(crt_value), libm_value,
18 toRep(libm_value));
19 return 1;
20 }
21 return 0;
22}
23
24fp_t cases[] = {
25 -NAN, NAN, -INFINITY, INFINITY, -0.0, 0.0, -1, 1, -2, 2,
26 -0x1.0p-127, 0x1.0p-127, -0x1.0p-128, 0x1.0p-128, // subnormals
27 -1.001, 1.001, -1.002, 1.002,
28};
29
30int main() {
31 const unsigned N = sizeof(cases) / sizeof(cases[0]);
32 unsigned i, j;
33 for (i = 0; i < N; ++i) {
34 for (j = 0; j < N; ++j) {
35 if (test__compiler_rt_fmaxf(cases[i], cases[j])) return 1;
36 }
37 }
38 return 0;
39}
40