compiler-rt/test/builtins/Unit/extendxftf2_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_extendxftf2
   3
   4 #include "int_lib.h"
   5 #include <stdio.h>
   6
   7 #if __LDBL_MANT_DIG__ == 64 && defined(__x86_64__) &&                          \
   8     (defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__))
   9
  10 #include "fp_test.h"
  11
  12 COMPILER_RT_ABI tf_float __extendxftf2(long double a);
  13
  14 int test__extendxftf2(long double a, uint64_t expectedHi, uint64_t expectedLo) {
  15   tf_float x = __extendxftf2(a);
  16   int ret = compareResultF128(x, expectedHi, expectedLo);
  17
  18   if (ret) {
  19     printf("error in __extendxftf2(%.20Lf) = %.20Lf, "
  20            "expected %.20Lf\n",
  21            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 #if __LDBL_MANT_DIG__ == 64 && defined(__x86_64__) &&                          \
  32     (defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__))
  33   // qNaN
  34   if (test__extendxftf2(makeQNaN80(), UINT64_C(0x7fff800000000000),
  35                         UINT64_C(0x0)))
  36     return 1;
  37   // NaN
  38   if (test__extendxftf2(makeNaN80(UINT64_C(0x3fffffffffffffff)),
  39                         UINT64_C(0x7fff7fffffffffff),
  40                         UINT64_C(0xfffe000000000000)))
  41     return 1;
  42   // inf
  43   if (test__extendxftf2(makeInf80(), UINT64_C(0x7fff000000000000),
  44                         UINT64_C(0x0)))
  45     return 1;
  46   // zero
  47   if (test__extendxftf2(0.0, UINT64_C(0x0), UINT64_C(0x0)))
  48     return 1;
  49   if (test__extendxftf2(0x1.23456789abcdefp+5, UINT64_C(0x400423456789abcd),
  50                         UINT64_C(0xf000000000000000)))
  51     return 1;
  52   if (test__extendxftf2(0x1.edcba987654321fp-9, UINT64_C(0x3ff6edcba9876543),
  53                         UINT64_C(0x2000000000000000)))
  54     return 1;
  55   if (test__extendxftf2(0x1.23456789abcdefp+45, UINT64_C(0x402c23456789abcd),
  56                         UINT64_C(0xf000000000000000)))
  57     return 1;
  58   if (test__extendxftf2(0x1.edcba987654321fp-45, UINT64_C(0x3fd2edcba9876543),
  59                         UINT64_C(0x2000000000000000)))
  60     return 1;
  61   // denormal number
  62   if (test__extendxftf2(1e-4932L, UINT64_C(0x00004c248f91e526),
  63                         UINT64_C(0xafe0000000000000)))
  64     return 1;
  65   // denormal number
  66   if (test__extendxftf2(2e-4932L, UINT64_C(0x000098491f23ca4d),
  67                         UINT64_C(0x5fc0000000000000)))
  68     return 1;
  69 #else
  70   printf("skipped\n");
  71
  72 #endif
  73   return 0;
  74 }