libitm/testsuite/libitm.c++/static_ctor.C

   1 /* { dg-do run } */
   2 /* { dg-xfail-if "" { *-*-* } { "*" } { "" } } */
   3 /* Tests static constructors inside of transactional code.  */
   4
   5 #include <pthread.h>
   6 #include <stdlib.h>
   7
   8 int f(int x) __attribute__((noinline,transaction_safe));
   9 int f(int x)
  10 {
  11   static int y = x;
  12   return y*x;
  13 }
  14
  15 static void *thread (void *)
  16 {
  17   int bar;
  18   __transaction_atomic { bar = f(10); }
  19   if (bar != 100)
  20     abort();
  21   return 0;
  22 }
  23
  24 int main()
  25 {
  26   int bar;
  27
  28   // First, initialize y in another thread.
  29   pthread_t pt;
  30   pthread_create(&pt, NULL, thread, NULL);
  31   pthread_join(pt, NULL);
  32
  33   // Now y should already be initialized.
  34   __transaction_atomic { bar = f(20); }
  35   if (bar != 200)
  36     abort();
  37
  38   return 0;
  39 }