1// REQUIRES: arm-target-arch || armv6m-target-arch
2// RUN: %clang_builtins %s %librt -o %t && %run %t
3
4#include <stdint.h>
5#include <stdio.h>
6#include <stdlib.h>
7#include <math.h>
8
9#if __arm__
10#include "call_apsr.h"
11
12extern __attribute__((pcs("aapcs"))) void __aeabi_cdcmpeq(double a, double b);
13
14int test__aeabi_cdcmpeq(double a, double b, int expected)
15{
16 uint32_t cpsr_value = call_apsr_d(a, b, __aeabi_cdcmpeq);
17 union cpsr cpsr = { .value = cpsr_value };
18 if (expected != cpsr.flags.z) {
19 printf("error in __aeabi_cdcmpeq(%f, %f) => Z = %d, expected %d\n",
20 a, b, cpsr.flags.z, expected);
21 return 1;
22 }
23 return 0;
24}
25#endif
26
27int main()
28{
29#if __arm__
30 if (test__aeabi_cdcmpeq(1.0, 1.0, 1))
31 return 1;
32 if (test__aeabi_cdcmpeq(1234.567, 765.4321, 0))
33 return 1;
34 if (test__aeabi_cdcmpeq(-123.0, -678.0, 0))
35 return 1;
36 if (test__aeabi_cdcmpeq(0.0, -0.0, 1))
37 return 1;
38 if (test__aeabi_cdcmpeq(1.0, NAN, 0))
39 return 1;
40 if (test__aeabi_cdcmpeq(NAN, 1.0, 0))
41 return 1;
42 if (test__aeabi_cdcmpeq(NAN, NAN, 0))
43 return 1;
44 if (test__aeabi_cdcmpeq(INFINITY, 1.0, 0))
45 return 1;
46 if (test__aeabi_cdcmpeq(0.0, INFINITY, 0))
47 return 1;
48 if (test__aeabi_cdcmpeq(-INFINITY, 0.0, 0))
49 return 1;
50 if (test__aeabi_cdcmpeq(0.0, -INFINITY, 0))
51 return 1;
52 if (test__aeabi_cdcmpeq(INFINITY, INFINITY, 1))
53 return 1;
54 if (test__aeabi_cdcmpeq(-INFINITY, -INFINITY, 1))
55 return 1;
56#else
57 printf(format: "skipped\n");
58#endif
59 return 0;
60}
61

source code of compiler-rt/test/builtins/Unit/arm/aeabi_cdcmpeq_test.c