compiler-rt/test/builtins/Unit/arm/aeabi_cdcmpeq_test.c

   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
  12 extern __attribute__((pcs("aapcs"))) void __aeabi_cdcmpeq(double a, double b);
  13
  14 int 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
  27 int 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("skipped\n");
  58 #endif
  59     return 0;
  60 }