compiler-rt/test/builtins/Unit/floatsitf_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_floatsitf
   3
   4 #include "int_lib.h"
   5 #include <stdio.h>
   6
   7 #if __LDBL_MANT_DIG__ == 113
   8
   9 #include "fp_test.h"
  10
  11 COMPILER_RT_ABI long double __floatsitf(si_int a);
  12
  13 int test__floatsitf(si_int a, uint64_t expectedHi, uint64_t expectedLo)
  14 {
  15     long double x = __floatsitf(a);
  16     int ret = compareResultF128(x, expectedHi, expectedLo);
  17
  18     if (ret)
  19     {
  20         printf("error in test__floatsitf(%d) = %.20Lf, "
  21                "expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));
  22     }
  23     return ret;
  24 }
  25
  26 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
  27
  28 #endif
  29
  30 int main()
  31 {
  32 #if __LDBL_MANT_DIG__ == 113
  33     if (test__floatsitf(0x80000000, UINT64_C(0xc01e000000000000), UINT64_C(0x0)))
  34         return 1;
  35     if (test__floatsitf(0x7fffffff, UINT64_C(0x401dfffffffc0000), UINT64_C(0x0)))
  36         return 1;
  37     if (test__floatsitf(0, UINT64_C(0x0), UINT64_C(0x0)))
  38         return 1;
  39     if (test__floatsitf(0xffffffff, UINT64_C(0xbfff000000000000), UINT64_C(0x0)))
  40         return 1;
  41     if (test__floatsitf(0x12345678, UINT64_C(0x401b234567800000), UINT64_C(0x0)))
  42         return 1;
  43     if (test__floatsitf(-0x12345678, UINT64_C(0xc01b234567800000), UINT64_C(0x0)))
  44         return 1;
  45
  46 #else
  47     printf("skipped\n");
  48
  49 #endif
  50     return 0;
  51 }