compiler-rt/test/builtins/Unit/extenddftf2_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_extenddftf2
   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 __extenddftf2(double a);
  12
  13 int test__extenddftf2(double a, uint64_t expectedHi, uint64_t expectedLo)
  14 {
  15     long double x = __extenddftf2(a);
  16     int ret = compareResultF128(x, expectedHi, expectedLo);
  17
  18     if (ret){
  19         printf("error in test__extenddftf2(%f) = %.20Lf, "
  20                "expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));
  21     }
  22     return ret;
  23 }
  24
  25 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
  26
  27 #endif
  28
  29 int main()
  30 {
  31 #if __LDBL_MANT_DIG__ == 113
  32     // qNaN
  33     if (test__extenddftf2(makeQNaN64(),
  34                           UINT64_C(0x7fff800000000000),
  35                           UINT64_C(0x0)))
  36         return 1;
  37     // NaN
  38     if (test__extenddftf2(makeNaN64(UINT64_C(0x7100000000000)),
  39                           UINT64_C(0x7fff710000000000),
  40                           UINT64_C(0x0)))
  41         return 1;
  42     // inf
  43     if (test__extenddftf2(makeInf64(),
  44                           UINT64_C(0x7fff000000000000),
  45                           UINT64_C(0x0)))
  46         return 1;
  47     // zero
  48     if (test__extenddftf2(0.0, UINT64_C(0x0), UINT64_C(0x0)))
  49         return 1;
  50
  51     if (test__extenddftf2(0x1.23456789abcdefp+5,
  52                           UINT64_C(0x400423456789abcd),
  53                           UINT64_C(0xf000000000000000)))
  54         return 1;
  55     if (test__extenddftf2(0x1.edcba987654321fp-9,
  56                           UINT64_C(0x3ff6edcba9876543),
  57                           UINT64_C(0x2000000000000000)))
  58         return 1;
  59     if (test__extenddftf2(0x1.23456789abcdefp+45,
  60                           UINT64_C(0x402c23456789abcd),
  61                           UINT64_C(0xf000000000000000)))
  62         return 1;
  63     if (test__extenddftf2(0x1.edcba987654321fp-45,
  64                           UINT64_C(0x3fd2edcba9876543),
  65                           UINT64_C(0x2000000000000000)))
  66         return 1;
  67     // denormal
  68     if (test__extenddftf2(1.8194069811494184E-308,
  69                           UINT64_C(0x3c00a2a7757954b9),
  70                           UINT64_C(0x6000000000000000)))
  71         return 1;
  72 #else
  73     printf("skipped\n");
  74
  75 #endif
  76     return 0;
  77 }