libgomp/testsuite/libgomp.oacc-c-c++-common/subr.h

   1
   2 #if ACC_DEVICE_TYPE_nvidia
   3
   4 #pragma acc routine nohost
   5 static int clock (void)
   6 {
   7   int thetime;
   8
   9   asm __volatile__ ("mov.u32 %0, %%clock;" : "=r"(thetime));
  10
  11   return thetime;
  12 }
  13
  14 #endif
  15
  16 void
  17 delay (unsigned long *d_o, unsigned long delay)
  18 {
  19   int start, ticks;
  20
  21   start = clock ();
  22
  23   ticks = 0;
  24
  25   while (ticks < delay)
  26     ticks = clock () - start;
  27
  28   return;
  29 }
  30
  31 void
  32 delay2 (unsigned long *d_o, unsigned long delay, unsigned long tid)
  33 {
  34   int start, ticks;
  35
  36   start = clock ();
  37
  38   ticks = 0;
  39
  40   while (ticks < delay)
  41     ticks = clock () - start;
  42
  43   d_o[0] = tid;
  44
  45   return;
  46 }