gcc/testsuite/gcc.target/sparc/20001013-1.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target ultrasparc_hw } */
   3 /* { dg-options "-O2 -mcpu=ultrasparc -mvis" } */
   4
   5 extern void abort (void);
   6 extern void exit (int);
   7
   8 int l;
   9
  10 int baz (double x)
  11 {
  12   return l == 0;
  13 }
  14
  15 double bar (double x)
  16 {
  17   return 1.0;
  18 }
  19
  20 double foo (double x)
  21 {
  22   if (l == -1 || baz (x)) return x;
  23   if (x < 0.0)
  24     return bar (x);
  25   else
  26     return 0.0;
  27 }
  28
  29 union {
  30   double d;
  31   long long l;
  32 } x = { l: 0x7ff8000000000000LL }, y;
  33
  34 int main ()
  35 {
  36   unsigned int fsr = 0;
  37   __asm __volatile ("ld %0, %%fsr" : : "m" (fsr));
  38   y.d = foo (x.d);
  39   __asm __volatile ("st %%fsr, %0" : "=m" (fsr));
  40   if (x.l != y.l || (fsr & 0x3ff))
  41     abort ();
  42   exit (0);
  43 }