gcc/testsuite/c-c++-common/dfp/convert-bfp-11.c

   1 /* { dg-skip-if "" { ! "powerpc*-*-linux*" } { "*" } { "" } } */
   2
   3 /* Test decimal float conversions to and from IBM 128-bit long double.
   4    Checks are skipped at runtime if long double is not 128 bits.
   5    Don't force 128-bit long doubles because runtime support depends
   6    on glibc.  */
   7
   8 #include "convert.h"
   9
  10 volatile _Decimal32 sd;
  11 volatile _Decimal64 dd;
  12 volatile _Decimal128 td;
  13 volatile float sf;
  14 volatile double df;
  15 volatile long double tf;
  16
  17 /* A value slightly less than DEC32_MAX can be converted in both directions.  */
  18 CONVERT_VALID (101, sd, tf, 9.999998e96df, 9.999998e96L, 1.e+81L)
  19 CONVERT_VALID (102, tf, sd, 9.999998e96L, 9.999998e96df, 0.df)
  20
  21 /* A value slightly less than DBL_MAX can be converted in both directions.  */
  22 CONVERT_VALID (201, tf, dd, 1.79768e+308l, 1.79768e+308dd, 0.dd)
  23 CONVERT_VALID (202, dd, tf, 1.79768e+308dd, 1.79768e+308l, 2.e292l)
  24 CONVERT_VALID (203, tf, td, 1.79768e+308l, 1.79768e+308dl, 1.e292dl)
  25 CONVERT_VALID (204, td, tf, 1.79768e+308dl, 1.79768e+308l, 2.e292l)
  26
  27 /* Check values that are too large for the result type.  */
  28 CONVERT_TO_PINF (301, dd, tf, 1.8e+308dd, l)
  29 CONVERT_TO_PINF (302, dd, tf, 9.9e+384dd, l)
  30 CONVERT_TO_PINF (303, td, tf, 1.8e+308dl, l)
  31 CONVERT_TO_PINF (304, td, tf, 9.9e+384dl, l)
  32
  33 CONVERT_TO_PINF (311, tf, sd, 1.0e+97L, d32)
  34 CONVERT_TO_PINF (312, tf, sd, 1.6e+308L, d32)
  35
  36 int
  37 main ()
  38 {
  39   if (sizeof (long double) != 16)
  40     return 0;
  41
  42   convert_101 ();
  43   convert_102 ();
  44
  45   convert_201 ();
  46   convert_202 ();
  47   convert_203 ();
  48   convert_204 ();
  49
  50   convert_301 ();
  51   convert_302 ();
  52   convert_303 ();
  53   convert_304 ();
  54   convert_311 ();
  55   convert_312 ();
  56
  57   FINISH
  58 }