gcc/testsuite/gcc.target/i386/excess-precision-2.c

   1 /* Excess precision tests.  Test excess precision of constants.  */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2 -mfpmath=387 -fexcess-precision=standard" } */
   4
   5 #include <float.h>
   6
   7 extern void abort (void);
   8 extern void exit (int);
   9
  10 volatile long double ldadd1 = 1.0l + 0x1.0p-30l;
  11 volatile long double ld11f = 1.1f;
  12 volatile long double ld11d = 1.1;
  13 volatile long double ld11 = 1.1;
  14
  15 void
  16 test_const (void)
  17 {
  18   if (1.0f + 0x1.0p-30f != ldadd1)
  19     abort ();
  20   if (ld11f != ld11)
  21     abort ();
  22   if (ld11d != ld11)
  23     abort ();
  24   if (1.1f != ld11)
  25     abort ();
  26 }
  27
  28 int
  29 main (void)
  30 {
  31   test_const ();
  32   exit (0);
  33 }